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| Lesson 7 || Selecting records based on user input |
| Objective || Use parameterized queries to select records based on user input values. |
Selecting Records based on User Input
Practically all Web sites today have some level of search capability. The typical scenario includes a search page in which the user selects a search criterion, such as author or title, enters a search term or phrase, and finally clicks a button to submit the search to the Web server.
In the scenario just described, the search criterion and term or phrases are not known at design time.
Rather, the complete search definition isn't known until runtime. At runtime, the SQL query is built dynamically after the user submits the search. There are generally two ways to implement runtime dynamic searches.
- Design time: The mode of operation when the application is being written.
- runtime: The mode of operation when the application is running.
- Stored procedures: SQL statements stored in a database
- Parameterized queries: SQL query that uses dynamic parameters
Parameterized queries use a SQL statement with a placeholder. A placeholder is simply a character, such as a question mark, that will be replaced at runtime with the values the user entered. Using placeholders, your application can build SQL queries dynamically at runtime. The following SQL statement shows a placeholder for the book status value.
SELECT ItemNo, Title, Author, Retail FROM BookTable
WHERE Status =?
You can implement parameterized queries in PHP using several of the database products you read about in the ealier Module on database concepts.
The VirtualBookShelf.com database used in this course is a Microsoft Access database. Unfortunately, PHP doesn't support parameterized queries in Microsoft Access. The simulation in this lesson uses a Microsoft SQL Server database. You use the Recordset DTC to create a parameterized query.
The control is bound to a SQL query, which will have one or more placeholders for user-entered values.
The following simulation demonstrates how to create an HTML page that lets the user enter a state abbreviation as the search term.
Using Parameterized Queries


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Adaptive cruise control builds on the functionalities of the cruise control system and within certain system limits, maintains the driver-selected comfort spacing from the vehicle in front automatically. The system uses a special radar sensor to measure the distance to the vehicle ahead. If the distance is too small, the system reduces speed moderately by easing the throttle or automatically applying the brakes, up to approximately 25% of maximum vehicle deceleration. Once the road ahead is clear again, adaptive cruise control accelerates the car up to the previously set speed. If the braking process activated by the adaptive cruise control does not decelerate the vehicle sufficiently, an acoustic signal is triggered immediately to warn the driver to intervene manually.
Adaptive cruise control does not react to stationary objects or approaching vehicles. It should not be used on winding roads or in adverse weather conditions such as fog, ice or heavy rain.

source: HuggingFaceFW/fineweb-edu


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Convert XLS is a simple to use, yet sophisticated Excel converter utility specifically designed for Excel, text and CSV (character/comma delimited) files. If you need to convert/manipulate one or thousands of files, located in one or many folders this is the tool! Conversions can be done 10-15 times faster without MS Excel.
Repeat complex conversion tasks simply by restoring prior 'Conversion Jobs'. A 'Conversion Job' consists of all 'Conversion Tasks' that you specify to be done within the 'Convert XLS' user interface. Each task can be detailed one at a time with Convert XLS s friendly user interface. This makes your future work to manipulate and convert XLS/XLSX /CSV/TXT files on a regular basis mindless endeavor!
- Save and restore complex conversion configurations.
- Convert Excel files to and from Text/CSV/HTML/XML without requiring MS Excel to be installed. If you do have MS Excel, 'Convert XLS' will support all file types in addition to TXT, XML, CSV etc. (see table below for a listing).
- Advanced Excel Manipulation Special processes including moving, deleting, adding and copying sheets. Append/Concatenate Excel files into a single sheet.
- XLSX Conversion now supported! Convert XLSX to CSV, HTML, XML, XLS, TXT etc.
- Special processing of files including appending/concatenation, removing extra lines, launching 3rd party programs, search and replace strings and much more.
- Numerous CSV (comma delimited file) manipulation features including padding, swapping out the delimiter and more. See below for more details.
- Convert Fixed Width Text Files to/from Excel or CSV files.
- Move or delete input files after processing
- Supports recursive subfolders.
- Batch can be stopped midway and resumed at a later time.
- Automate 'Convert XLS' from the command line or use the COM/ActiveX interface. Complete flexibility, complete power.
- Can be adapted for all languages.
- If you need to manipulate Excel file data, Convert XLS comes with numerous specialized processes including:
- Convert Excel to/from to many file types including CSV, XML, HTM, TXT, SLK, WKS, DBF, Lotus and others. See below for listing.
- Copy Sheet Data/Formula from the same or different workbook. Specify ranges! Can be used to merge data from many sheets/workbooks.
- Copy Worksheet(s) whole (including formatting) to the same or different workbook, and specify location within the workbook.
- Merge Excel File Data. Combine Excel worksheet data by specifying the sheet(s) (and/or Range within each sheet) from a whole folder of workbooks to a single sheet.
- Change cell(s) Value or Formula.
- Batch printing of Excel (or any file MS Excel can open).
- Run Excel Macros from command line or user interface.
- Convert Word Tables To Excel
- Change cell numeric formatting of sheets/cells you specify. (e.g. apply currency format, text format, general number format, etc.)
- Search and Replace Cell Contents of the sheets/cells you specify
- Add a new sheet and specify where to place the new sheet
- Delete a single or whole range of sheets within a workbook
- Move a sheet to a specific place within a workbook
- Rename an existing sheet
- Delete specified rows or columns, leaving the rest of the worksheet intact
- Transpose sheet data by converting rows to columns and columns to rows.
- Change/Remove Workbook Passwords
Changelog for this release:
It recognizes double quotes, and thereby ignores comma within it.

source: openbmb/Ultra-FineWeb


蕭 子瑜
·1 分鐘 (閱讀時間)
Upon first glance, this paper peeled from 2-year-old rice paper plants looks lightweight, inexpensive and unremarkable.
However, make no mistake of underestimating its powers. With a little water and a brush, this potent canvas is capable of "awakening" colors.
The special texture of pith paper, coupled with its unique ability to absorb and store pigments, ensures that the colors will not fade with time.
Pith paintings, also known as "tong cao hua," gained popularity in 19th century Guangzhou and appealed to international traders.
Pith painting master Su Xin unfolds the unique history of pith paintings, which is characterized by its fusion of "western perspective painting" with "court-style skills from China".
These comprehensive paintings mostly depicted Guangzhou's people, landscape, and daily life. Over the years, the colors preserved from these paintings continue to tell vibrant stories of people's lives.


It's far easier to duplicate, rename and customize an existing Drupal theme and use it to build your first theme than to build one from scratch.
The first step is to install the theme you want to modify. Then make a copy of the theme directory on your computer. Use this local copy to make your changes, and then upload the modified copy to your site/all/themes directory on your web host.
To edit the files in a theme, you need some sort of text editor:
 - On a Windows machine, you can use the NotePad text editor.
 - On the Mac, TextEdit will work, although be sure to choose Format→Make Plain Text.
To create your own version of a theme, follow these steps:
 1. Rename the folder to a distinctive name you want to use for your theme.
 The name may only contain lowercase letters, numbers, and underscores. The example uses drupalfordummies.
 2. Open this folder and locate the.info file. Rename this file with your new theme name.
 For this example, is used.
 Make sure you rename the info file. Don't copy it with a new name. You only want one info file in your theme directory, and the name needs to match the name of your theme.
 3. Open the.info file in a text editor).
 4. Change the first line of this file to simply
 ; $Id$
 5. Change the name = line to use your theme name.
 In the example, this line is changed to name = Drupal For Dummies.
 This will be the name that shows up on the module selection page. It can contain spaces.
 6. Change the description text to describe your theme.
 The example changes the description to description = Yellow and Black Theme.
 7. Save this file using the new name you gave your theme.
 The examples is named You can delete the original.info file.
 Your.info file should now look similar to the following illustration.
 8. Open the template.php file in a text editor, use FIND and REPLACE to find the name "garland" and replace it with your theme's name (for example, drupalfordummies). Save your file.
 9. Repeat Step 8 for the theme-settings.php file.


text: things there can be no error in respect of time, if we assume them to be unchangeable. E.g. if we suppose that the triangle does not change, we shall not suppose that at one time its angles are equal to two right angles while at another time they are not (for that would imply change). It is possible, however, to suppose that one member of such a class has a certain attribute and another has not; e.g. while we may suppose that no even number is prime, we may suppose that some are and some are not. But regarding a numerically single number not even this form of error is possible; for we cannot in this case suppose that one instance has an attribute and another has not, but whether our judgement be true or false, it is implied that the fact is eternal.


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Washington has long been a leader in fare-free transit policy. In 1987, Island County became the first community to offer a complimentary bus service for its residents. 20 years later, the free transit system is still in place.
A number of communities nationwide have since looked into the prospect of free transit services in order to reduce road congestion, use of single occupancy vehicles, increase mobility and make better use of public resources. Yet in many of these cases, a fare free program was short-lived or resulted in negative externalities.
What makes Island County's model successful? Could this system function elsewhere?
A report on Transit Ridership Efficiency as a Function of Fares by Gerrit R. Moore concentrates on rider performance and farebox recovery parameters for counties within Washington state. Listing each county's operating costs, farebox revenue, ridership, population, population served and median income, the report provides a much-needed look at the ingredients needed for a transit-free system to successfully operate: strong support in a relatively small community.
Proponents of fare-free transit argue that it eliminates the need for complicated fare pricing policies, driver disputes over fares and serves a wider audience. According to Moore's presentation, Island Transit had about 543,000 rides in 1994. Had fares been charged, ridership would have dropped to 15,800 rides. The benefits of free transit stem from the belief that transportation is a basic and necessary public good that should be available for all member of society regardless of income, age or reduced physical abilities. Moore argues that in collecting fares, Island County would have lost money if fares were charged. He cites fare boxes, which cost an average for $4,500 each, as well as personnel costs for two state employees that must count the revenue every night, as mandated by state law.
Ridership across the nation is at an all-time high yet 85% of transit agencies nationwide will undergo service reductions and eliminations over the next few years. When the price of oil peaked in 2009, ridership increased and buses became a viable choice for commuters with other transportation options. Challenges to free transportation include crowding, possible misuse by some social groups and increased stops due to the fact that people that would otherwise walk shorter distances will catch the bus. In essence, crowding will likely generate more ride complaints, but the removal of fare boxes is expected to reduce conflicts between drivers and problem riders. Similarly, gains in average boarding times will likely be offset by higher ridership, which may lead to slightly increased aggregate boarding times.
Free transit has been successful in other Washington communities, including Chelan-Douglas County, Mason County and Skagit County. Many people in this area depend on this service for their daily commute. Although larger systems such as King County Metro refuse to forego fare revenue, communities with free transit support the service through local, federal and state tax revenue. In the case of Island County, the free buses are financed through a local sales tax equal to 6 cents on every $10.


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UVM and Champlain College have a lot of power in shaping our community, in both positive and negative ways. We often hear about how 40% of UVM's students living off campus increases non-students' housing costs, and I've written about how as two of the city's largest landlords with a captured client base, their exorbitant room and board costs likely distort rents citywide. There's a third way that UVM and Champlain College contribute to Burlington's gentrification, and that's their admissions processes which are highly geared towards very wealthy families.
Thanks to the New York Times we can see a snapshot of UVM and Champlain College students' economic backgrounds and how they compare to Burlington's residents in 2016. Both schools have high rates of students from very wealthy backgrounds and low rates of students from very poor backgrounds, particularly when compared to Burlington residents. The median college student family is nearly 3 times as wealthy as the median Burlington family.
According to their data, not only are more than half of UVM and Champlain students from the top 20% wealthiest families, but only 4%-6% of students came from the bottom 20%. College students in Burlington are wealthy at 3 times the rate that Burlington residents are, while Burlington residents have 5-8 times higher rates of poverty than college students in Burlington.
These schools function less like educational institutions striving towards equity and more like businesses trying to maximize profits and growth. That's the reason students and faculty are fighting against the administrations' cuts to programs that aren't 'making money'.
More students come from families making $2.2 million a year than families making under $22,800 a year. A full 8,000 students come from families wealthier than 82% of all Burlington households.
NYTimes data shows that the trend of students coming from families much wealthier than Burlington residents has been consistent or increasing for decades. While UVM has become slightly less accessible since the early 2000s, Champlain College has catered towards significantly wealthier students and is their student body is now comparable to UVM's.
How does an admissions process that caters to wealthy students effect low and moderate income Burlington residents? How does this process hurt low-income college students? How is such a model sustainable, and how do we keep Burlington from becoming an elite town for wealthy students and the business community that caters to them? Lastly, who is holding UVM and Champlain responsible for their role in hastening gentrification and making life harder for Burlington's low income residents including low-income college students?


Europe's Energy Portal » Natural Gas and Electricity Prices From Past To Present
Energy Prices Report
Energy prices are important. For organizations, energy costs have a significant impact on their bottom line. Each household's budget is greatly affected by the costs of energy. Europe's energy Portal uses its proven methodology to comprehensively monitor energy prices for all European Union member states.
The country specific energy reports contain extended monthly energy price data and are up-to-date and complete: the data range starts at the turn of the millennium and continues until the preceding month.
NEWS: 7/13 - Pricing structure altered. Existing subscriptions are not affected.


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In a year when tremendous variability was observed within fields as well as among areas of the state, information from replicated trials like the University of Minnesota trials is particularly valuable.
Since we can't predict next year's growing conditions, it's important to select hybrids that perform well over multiple locations within a region. Hybrids that consistently perform well over multiple environment, including different soil and weather conditions, have greater potential to perform well the next year, compared to hybrids with less consistence performance.
Below are University of Minnesota Extension grain and silage hybrid selection recommendations based on the results from the 2012 University of Minnesota corn grain and silage trials.
Considerations for grain hybrid selection:
Hybrid selection begins with maturity. Early Growing Degree Day (GDD) accumulation, combined with an early planting season overall, caused corn to mature early in 2012. In planning for next year, identify an acceptable maturity range based on the number GDDs required for a hybrid to reach physiological maturity (black layer).
Detailed information about the number of GDDs available for corn production for multiple locations along with information on the relationship between GDDs and corn relative maturity (RM) is available at: _URL_
Plant multiple hybrids of varying maturity to spread risk, and widen the harvest interval.
There is more variability in yield among hybrids within a given RM rating than there is between maturity groups. Detailed information on corn grain yields and harvest moisture for various RMs across Minnesota is available at: _URL_
Hybrids should also be selected according to agronomic traits such as standability, disease tolerance, emergence, and the need for transgenic resistance to insects and herbicides within a given production system.
Considerations for silage hybrid selection:
One of the first things to consider when selecting silage hybrids is maturity. Longer-season hybrids tend to have higher silage yields. A general guideline is that hybrids planted for silage should be five to 10 days longer in RM than the hybrids planted for grain.
Select hybrids that have a range in RM, as this widens the harvest window. Harvesting at the correct moisture level is critical for producing high quality silage, and if missed, can negate the benefits of good hybrid selection.
Other important agronomic considerations when selecting silage hybrids include herbicide and insect resistance for the given cropping system, and tolerance to drought and disease.
Since corn silage is an energy source for animal performance, producers should consider both silage quality and yield when selecting hybrids. Consulting with a livestock nutritionist during the hybrid selection process helps to ensure that selected hybrids will have the necessary nutritive value for your herd.
Results of the 2012 University of Minnesota corn grain and silage trials are available online at the following links:
2012 Corn Grain Hybrid Trial Results: _URL_
2012 Corn Silage Hybrid Trial Results: _URL_
For more information about corn production, visit the Extension website at: _URL_
Jeff Coulter is a corn agronomist and Liz Stahl is a crops educator; both are with University of Minnesota Extension.


text: The overarching aim of this study was to examine and explore the barriers to resettlement for foreign national women living in the community in the UK, and to shed light on the complex ways in which non-citizen immigration status shapes the lived reality of resettlement for this group. In recent years, there has been an increased focus by the UK government on the deportation of 'foreign national criminals' on completion of their sentence, an emphasis that has geared foreign national women's pathways through the CJS strongly towards the possibility of deportation, over rehabilitation and resettlement. Yet, many foreign national women are released into the community post sentence – indeed, 260 women in 2017 (Ministry of Justice 2019), in addition to women serving community sentences. By interviewing women in open, semi-structured conversations, my aim was to identify and gain much needed insight into the challenges they face, giving space for women to voice the struggles – often painfully sustained and unyielding – that shape their daily lives in the community and render rehabilitative goals impossible. By interviewing practitioners, I aimed to identify the barriers they come up against in providing support and to ask how these could be addressed. Ultimately, the research makes recommendations for urgently needed improvements to current provision for this group.


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Selection and Visibility Controls in PowerPoint This is a feature introduced in PowerPoint 2007, but less widely-known than it should be. Click on any graphic object in a slide; the Drawing Tools tab will appear. Click on the tab, then click on Select at the far right of the ribbon. Finally, click on Selection Pane. The pane at the far right will open. If there is any object on the slide that you want to make invisible (perhaps because might want to reuse the slide, or a copy of it, with the same object made visible again), click on the eye icon to toggle the object between being visible and being hidden. You can also click on the automatically assigned name of any object and give it a more descriptive name to make the objects easier to manage.
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And now for a different kind of graduation speech.
Most commencement speeches provide answers of sorts–pieces of wisdom you can carry with you, life strategies you can use down the road. Above James Ryan, Dean of Harvard's School of Education, offers something else–not answers, but questions, the five essential questions to ask as you move through life. He elaborates on each above:
1.) Wait, what?
2.) I wonder, why/if?
3.) Couldn't we at least?
4.) How can I help?
5.) What really matters?
Bonus question: And did you get what you wanted out of life, even so?
You can watch Ryan's complete commencement speech here.


5322 New Design RD.
Frederick MD 21703
Veterinarians in Frederick MD Veterinarians in Frederick MD
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Seasonal Toxins-Fatal Fertilizers in Frederick, MD
The spring weather is upon us and the gardeners of Frederick, MD have begun planning and preparing flower beds and gardens for the season. Fertilizer is a common purchase during the season that can be potentially toxic to dogs and cats. Included in the list of dangerous fertilizers and mulch are blood meal, bone meal, cocoa bean mulch and fertilizers that contain iron.
Blood Meal: made of dried, ground and flash-frozen blood. It contains 12% nitrogen, which is desirable for gardening, but not for your pet. Some are also fortified with iron, which can result in iron toxicity. Blood meal has a generally mild to moderate level of toxicity. Signs of ingestion include vomiting, diarrhea and severe pancreatitis. It can also cause nausea, drooling, bloody vomit, lethargy, abdominal pain and bloat.
Bone Meal: made of defatted, dried and flash-frozen animal bones that are ground to a powder. Gardeners use bone meal to dust spring bulbs to prevent squirrels from ingesting the bulbs. It is a great organic fertilizer, but when your pet consumes this fertilizer in large amounts, a large cement-like bowling ball foreign body can form in the stomach causing an obstruction. This fertilizer generally has a mild to moderate level of toxicity. Symptoms can include drooling, nausea, vomiting (acute or delayed onset), diarrhea, abnormal posture due to abdominal pain, difficulty breathing and "muddy" colored gums.
Cocoa Bean Mulch: made of discarded hulls or shells of the cocoa bean, which are by-products of chocolate production. The processed hulls can contain theobromine and caffeine which can be dangerous to pets. The "chocolate like" smell is very enticing to dogs and cats. Cocoa bean mulch varieties with higher toxin concentrations can cause vomiting, diarrhea, hyperactivity, abnormal heart rhythm, muscle tremors and seizures. In extreme cases, death can occur.
Fertilizers containing iron: most fertilizers contain varying amounts of nitrogen, phosphorus and potassium. They may also contain iron, copper, zinc, cobalt, boron, manganese and molybdenum which may be toxic in large concentrations. Small ingestions may result in mild stomach upset. Large ingestions may result in severe poisoning. Iron toxicity can cause bloody vomiting and diarrhea from gastrointestinal hemorrhage, lethargy, abdominal pain, shock, elevated heart rate, panting, tremors and can effect organ systems.
Below are steps you can take if you suspect your pet has been poisoned:
1. Immediately remove your pet from the area and make sure no other pets are exposed to the area.
2. Check to make sure your pet is breathing normally and acting normally.
3. Collect a sample of the material and save the packaging, vial or container. This information is necessary when speaking with a Kingsbrook Animal Hospital team member or to a Pet Poison Helpline expert.
4. Do NOT give your dog any home remedies or induce vomiting without speaking with a Kingsbrook Animal Hospital team member or a Pet Poison Helpline expert. It actually may be detrimental or contraindicated to induce vomiting or giving home remedies.
5. Get help! Below are phone numbers that we recommend programming into your cell phone for immediate access to help.
6. Report the toxicity immediately. The prognosis is always better when a suspected toxicity is reported immediately. Please don't wait to see if your pet becomes ill before contacting us for help. The sooner, the better!
Kingsbrook Animal Hospital: _PHONE_
CARE (Crossroads Animal Referral and Emergency): _PHONE_
Pet Poison Helpline: _PHONE_ or _URL_
Mon – Fri: 7:45am – 6:00pm
Sat: 7:45am – 1:00pm


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At present, the use of vacuum pump is widespread and common. You don't know the details of the use of vacuum pump very well. In order to better use the vacuum pump, Xiao Bian will discuss the details of the use of vacuum pump with you.
1. Master the vacuum volume of vacuum pump. In the process of using, we should first determine the time needed to reach the required vacuum degree, and ensure the flow resistance and leakage of the vacuum pipeline.
2. After reaching the required vacuum degree, ensure the required vacuum pumping rate in the given working environment.
3. Determine the limit vacuum degree, check the limit vacuum degree of vacuum pump system on the basis of determining the vacuum degree required by the process, because the limit vacuum degree of the system determines the best working vacuum degree of the system. Generally speaking, the limiting vacuum degree of the system is 20% lower than the working vacuum degree of the system, and 50% lower than the limiting vacuum degree of the previous stage pump.
4. To confirm the vacuum range of vacuum pump, first check and determine the vacuum degree required by each process. Because each process has its suitable vacuum range, it must be carefully studied and determined.
5. Ensure the type and gas volume of the vacuum pump to be pumped: check and determine the type and gas volume required by the process. Because if the kind of pumped gas reacts with the liquid in the pump, the pump system will be polluted. At the same time, it is necessary to determine the appropriate exhaust time and the amount of gas produced in the process of extraction.
In the use of vacuum pump, we must pay attention to every working link to ensure that each index can reach the set standard. For more information about vacuum pump, please continue to pay attention to the vacuum pump factory.


The Daily Sabbatical/Harvard | Mar 10, 2011 | 7857 views
Creating a Positive Professional Image
Most people use a variety of strategies for managing impressions of their social identities
s HBS professor Laura Morgan Roberts sees it, if you aren't managing your own professional image, others are.
"People are constantly observing your behavior and forming theories about your competence, character, and commitment, which are rapidly disseminated throughout your workplace," she says. "It is only wise to add your voice in framing others' theories about who you are and what you can accomplish."
There are plenty of books telling you how to "dress for success" and control your body language. But keeping on top of your personal traits is only part of the story of managing your professional image, says Roberts. You also belong to a social identity group—African American male, working mother—that brings its own stereotyping from the people you work with, especially in today's diverse workplaces. You can put on a suit and cut your hair to improve your appearance, but how do you manage something like skin color?
Roberts will present her research, called "Changing Faces: Professional Image Construction in Diverse Organizational Settings," in the October issue of the Academy of Management Review.
She discusses her research in this interview.
Mallory Stark: What is a professional image?
Laura Morgan Roberts:
Q: What is the difference between "desired professional image" and "perceived professional image?"
It is important to distinguish between the image you want others to have of you and the image that you think people currently have of you.
Most people want to be described as technically competent, socially skilled, of strong character and integrity, and committed to your work, your team, and your company. Research shows that the most favorably regarded traits are trustworthiness, caring, humility, and capability.
Ask yourself the question: What do I want my key constituents to say about me when I'm not in the room? This description is your desired professional image. Likewise, you might ask yourself the question: What am I concerned that my key constituents might say about me when I'm not in the room? The answer to this question represents your undesired professional image.
You can never know exactly what all of your key constituents think about you, or how they would describe you when you aren't in the room. You can, however, draw inferences about your current professional image based on your interactions with key constituents. People often give you direct feedback about your persona that tells you what they think about your level of competence, character, and commitment. Other times, you may receive indirect signals about your image, through job assignments or referrals and recommendations. Taken together, these direct and indirect signals shape your perceived professional image, your best guess of how you think your key constituents perceive you.
Q: How do stereotypes affect perceived professional image?
In the increasingly diverse, twenty-first century workplace, people face a number of complex challenges to creating a positive professional image. They often experience a significant incongruence between their desired professional image and their perceived professional image. In short, they are not perceived in the manner they desire; instead, their undesired professional image may be more closely aligned with how their key constituents actually perceive them.
What lies at the source of this incongruence? Three types of identity threats—predicaments, devaluation, and illegitimacy—compromise key constituents' perceptions of technical competence, social competence, character, and commitment. All professionals will experience a "predicament" or event that reflects poorly on their competence, character, or commitment at some point in time, due to mistakes they have made in the past that have become public knowledge, or competency gaps (e.g., shortcomings or limitations in skill set or style).
Members of negatively stereotyped identity groups may experience an additional form of identity threat known as "devaluation." Identity devaluation occurs when negative attributions about your social identity group(s) undermine key constituents' perceptions of your competence, character, or commitment. For example, African American men are stereotyped as being less intelligent and more likely to engage in criminal behavior than Caucasian men. Asian Americans are stereotyped as technically competent, but lacking in the social skills required to lead effectively. Working mothers are stereotyped as being less committed to their profession and less loyal to their employing organizations. All of these stereotypes pose obstacles for creating a positive professional image.
Even positive stereotypes can pose a challenge for creating a positive professional image if someone is perceived as being unable to live up to favorable expectations of their social identity group(s). For example, clients may question the qualifications of a freshly minted MBA who is representing a prominent strategic consulting firm. Similarly, female medical students and residents are often mistaken for nurses or orderlies and challenged by patients who do not believe they are legitimate physicians.
Q: What is impression management and what are its potential benefits?
Despite the added complexity of managing stereotypes while also demonstrating competence, character, and commitment, there is promising news for creating your professional image! Impression management strategies enable you to explain predicaments, counter devaluation, and demonstrate legitimacy. People manage impressions through their non-verbal behavior (appearance, demeanor), verbal cues (vocal pitch, tone, and rate of speech, grammar and diction, disclosures), and demonstrative acts (citizenship, job performance).
My research suggests that, in addition to using these traditional impression management strategies, people also use social identity-based impression management (SIM) to create a positive professional image. SIM refers to the process of strategically presenting yourself in a manner that communicates the meaning and significance you associate with your social identities. There are two overarching SIM strategies: positive distinctiveness and social recategorization.
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Comments (2)
Manjunatha N Mar 10, 2011
good one
Sibi John Mar 10, 2011
Social as well professional image these days very much depend on how you manage your profile on your social network sites. An uncalled for status update/photo can land you in trouble. Managing your Social Media Image is now more important than your personnal/professional image.
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text:
TMR (Targeted Muscle Reinnervation)
What is TMR?
The goal of a TMR fitting is to enable arm amputees to use their prosthesis intuitively. For this purpose, nerves that transmitted signals to the natural arm are connected to other muscles. This surgical intervention is called Targeted Muscle Reinnervation, or TMR for short.
After the amputation of an arm, the nerves are still functional up to the amputation site. These nerves can generally integrate themselves into a different muscle and trigger a contraction. The concept of TMR is based on triggering a natural repair mechanism artificially. Thus, a muscle that is no longer functional after the amputation is divided into several segments surgically.
The original nerve supply for this muscle is severed. The surgically relocated nerve ends become incorporated into the muscle. This process of establishing a targeted new connection is called targeted reinnervation.
Complex motor training during the subsequent rehabilitation process ensures that you can activate the reinnervated muscles appropriately and selectively. This creates up to six independent muscle signals that significantly help to improve your control of the prosthesis.
TMR is an established treatment method following amputation of the upper arm or shoulder disarticulation. After a TMR fitting, you control your prosthesis using up to six different thoughts about natural movements. For example, simply think of making a fist or closing your hand, and the corresponding muscle will be activated, with the associated signal then closing the prosthetic hand. This way, several prosthetic movements can be carried out at the same time, quickly and intuitively.
To find out more about TMR, including where you can visit for an assessment, please check out our dedicated TMR website.


text:
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A form or part that is folded or coiled.
- n. One of the convex folds of the surface of the brain.
Century Dictionary and Cyclopedia
- n. The act of rolling. or winding together, or of winding one part or thing on another; the motion or process of winding in and out.
- n. The state of being rolled upon itself, or rolled or wound together.
- n. A turn or winding; a fold; a gyration; an anfractuosity; a whorl: as, the convolutions of a vine; the convolutions of the intestines.
- n. In anatomy, specifically, one of the gyri, gyres, or anfractuosities of the brain, especially of the cerebrum. See cuts under brain and corpus.
- n. In mathematics, such a connection between the relations of any asyzygetic system that each is applied alternately in the aggregate of the remaining relations.
- n. Something that is folded or twisted.
- n. Any of the folds on the surface of the brain.
- n. The shape of something rotating; a vortex.
- n. mathematics A form of moving average.
- n. computing A function which maps a tuple of sequences into a sequence of tuples.
GNU Webster's 1913
- n. The act of rolling anything upon itself, or one thing upon another; a winding motion.
- n. The state of being rolled upon itself, or rolled or doubled together; a tortuous or sinuous winding or fold, as of something rolled or folded upon itself.
- n. (Anat.) An irregular, tortuous folding of an organ or part.
- n. a convex fold or elevation in the surface of the brain
- n. the action of coiling or twisting or winding together
- n. the shape of something rotating rapidly
- From Latin convolutus ("to roll together"), past participle of convolvere, from con- + volvere ("to roll"). (Wiktionary)
"It was in 1861 that he announced his discovery of the seat of articulate speech in the left side of the frontal region of the brain, since known as the convolution of Broca."
"It is of small size, and consists of a square-shaped convolution, which is termed the precuneus or quadrate lobe."
"In front of this precentral convolution are the three frontal convolutions, and it would seem that the functions of these convolutions are higher movements and attention in fixation of the eyes; moreover, in the lowest frontal region, indicated by fine dots, we have Broca's convolution, which is associated with motor speech; above at the base of the second middle frontal convolution is the portion of cortex in which is localised the function of writing."
"M. Alain's expensive way of life, his clothes and mistresses, his dicing and racehorses, were all explained: he was in the pay of Buonaparte, a hired spy, and a man that held the strings of what I can only call a convolution of extremely fishy enterprises."
"The interior portion of the convolution is the more intellectual portion of the organ, while the exterior portion is that which holds the closest relation to the fibres of the _corpora striata_ in the middle lobe, and may therefore most properly be called the organ of language or of speech, the impairment of which produces aphasia, or loss of speech."
"In particular, Fourier analytic methods are particularly useful for studying operations such as convolution in frequency space (the domain of the frequency variable"
"He looked again and decided that it was the purple haze of the hills made dark by a convolution of the cãnon wall at its back."
"At some length and terminological convolution on their part, making these exact same points to them, even that one about the computer program, with little effect … it is the most bizarre thing."
These user-created lists contain the word 'convolution'.
A list of words that are odd or words that I have looked up.
Abbe-Helmert crit..., a priori probability, alphabet, total correlation, three-dimensional..., theoretical frequ..., time reversal test, three-series theorem, theoretical variable, tetrachoric corre..., absolutely unbias..., absolute error and 4171 more...
abducens.....draw..., ablation.....carr..., acetylcholine......., adrenalin.....nea..., afferent.....to c..., agnosia.....no kn..., alar.....wing-like, alexia.....no words, alveus.....canal, amacrine.....no l..., ambidextrous........, ambiguus.....doub... and 701 more...
ruptured blood ve..., clot, pressure on a blo..., tumor, brain region, comprehension of..., production of mea..., autonomic nervous..., conservation of t..., catecholamine, arousal, regulation of sleep and 564 more...
-a unit of language consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning.
Derivatives from Chapter 19 of Part One of English Words from Latin and Greek Elements
"cerebral" cerebral terms
Looking for tweets for convolution.


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Hyper Natural Deduction
After quite some years of research, my colleague Arnold Beckmann and my paper on Hyper Natural Deduction has finally been published in the Journal of Logic and Computation. This paper was the difficult but necessary first step in our program to develop a Curry-Howard style correspondence between standard Gödel logic (and its Hypersequent calculus) and some kind of parallel computations.
The results of this article were first announced at the LICS (Logic in Computer Science) Conference in 2015, but the current version is much more intuitive due to a switch to inductive definition, usage of graph representation for proofs, and finally due to a fix of a serious error. The abstract of the current article read:
We introduce a system of Hyper Natural Deduction for Gödel Logic as an extension of Gentzen's system of Natural Deduction. A deduction in this system consists of a finite set of derivations which uses the typical rules of Natural Deduction, plus additional rules providing means for communication between derivations. We show that our system is sound and complete for infinite-valued propositional Gödel Logic, by giving translations to and from Avron's Hypersequent Calculus. We provide conversions for normalization extending usual conversions for Natural Deduction and prove the existence of normal forms for Hyper Natural Deduction for Gödel Logic. We show that normal deductions satisfy the subformula property.
The article (preprint version) by itself is rather long (around 70 pages including the technical appendix), but for those interested, the first 20 pages give a nice introduction and the inductive definition of our system, which suffices for building upon this work. The rest of the paper is dedicated to an extensional definition – not and inductive definition but one via clearly defined properties on the final object – and the proof of normalization.
Starting point of our investigations was Arnon Avron's comments on parallel computations and communication when he introduced the Hypersequent calculus (Hypersequents, Logical Consequence and Intermediate Logics for Concurrency, Ann.Math.Art.Int. 4 (1991) 225-248):
The second, deeper objective of this paper is to contribute towards a better understanding of the notion of logical consequence in general, and especially its possible relations with parallel computations.
We believe that these logics […] could serve as bases for parallel λ-calculi.
The name "communication rule" hints, of course, at a certain intuitive interpretation that we have of it as corresponding to the idea of exchanging information between two multiprocesses: […]
In working towards a Curry-Howard (CH) correspondence between Gödel logics and some kind of process calculus, we are guided by the original path, as laid out in the above graphics: Starting from Intuitionistic Logic (IL) and its sequent calculus (LJ) a natural dudcution system (ND) provided the link to the λ-calculus. We started from Gödel logics (GL) and its Hypersequent calculus (HLK) and in this article developed a Hyper Natural Deduction with similar properties as the original Natural Deduction system.
Curry-Howard correspondences provide deep conceptual links between formal proofs and computational programs. A whole range of such CH correspondences have been identified and explored. The most fundamental one is between the natural deduction proof formalism for intuitionistic logic, and a foundational programming language called lambda calculus. This CH correspondence interprets formulas in proofs as types in programs, proof transformations like cut-reduction to computation steps like beta-reduction in lambda calculus. These insights have led to applications of logical tools to programming language technology, and the development of programming languages like CAML and of proof assistants like Coq.
CH correspondences are well established for sequential programming, but are far less clear for parallel programming. Current approaches to establish such links for parallel programming always start from established models of parallel programming like process algebra (CSP, CCS, pi-calculus) and define a related logical formalism. For example the linear logic proof formalism is inspired by the pi-calculus process algebra. Although some links between linear logic and pi-calculus have been established, a deep, inspiring connection is missing. Another problem is that logical formalisms established in this way often lack a clear semantics which is independent of the related computational model on which they are based. Thus, despite years of intense research on this topic, we are far from having a clear and useful answer which leads to strong applications in programming language technology as we have seen for the fundamental CH correspondence for sequential programming.
Although it was a long and tiring path to the current status, it is only the beginning.


New jet-dispensing system helps manufacturers keep pace with today's demanding production requirements
Figure 1. The PicoDotTM jet dispensing system is a non-contact dispensing system that uses piezoelectric technology to apply small, precise amounts of assembly fluids.
As today's products continue to pack more features into smaller packages, tolerances keep getting tighter and tighter. This makes consistent size and placement of adhesives, lubricants, coatings and other assembly fluids more critical than ever.
To help manufacturers meet this challenge, EFD (East Providence, RI) has developed the PicoDotTMjet dispensing system - a non-contact dispensing system that uses piezoelectric technology to apply small, precise amounts of a variety of fluids.
With the ability to apply consistent shots as small as 2 nanoliters at speeds up to 150 dots per second, the PicoDot system is ideal for high-speed, high-volume applications that require many small, precise fluid deposits. The narrow design of the valves, with a width of approximately ½ inch, makes them particularly well suited for installations where space is tight or valves need to be mounted close to each other.
Because the valve nozzle does not contact the substrate, the Pico Dot system is also a good choice for applications where controlled amounts of fluid must be applied on surfaces that are not perfectly flat, such as printed circuit boards. Eliminating contact with the substrate also eliminates the need for vertical Z-axis movement and precise height positioning, which can significantly increase production speeds.
The PicoDot's range of possible applications is huge. Sample uses include electronics (bonding cell phone speakers with UV-cure adhesives), life sciences (attaching needles to medical syringes), and precision mechanical applications (jetting small amounts of grease on micro gears).
How Piezoelectric Valves Work
Piezois Greek for "pressure." When pressure is applied to certain crystalline materials, such as quartz, it creates voltage. Conversely, when voltage is applied to a crystal, the crystal changes shape. This concept is the basis for the PicoDot system, which consists of three separate components: a jet valve, a valve driver and a valve controller.
Figure 2. PicoDot Valve in closed position.
Jet Valve
The PicoDot jet valve contains two piezoelectric actuators composed of stacked ceramic coins that expand and contract in response to changes in voltage supplied through the valve driver. Both actuators are connected to a vertical rod that has a ceramic sealing ball attached to its lower end. When the valve is in the closed position (see Figure 2), the ball is seated in the valve nozzle.
Figure 3. PicoDot Valve in open position.
When voltage is applied to the actuators, the rod and sealing ball are raised so that the pressurized dispensing fluid can flow to the nozzle (see Figure 3). When the voltage is changed, the rod and sealing ball descend rapidly to force - or "jet" - the fluid out of the nozzle and onto the substrate. Depending on the application, deposits can be in the form of dots or lines.
The extremely fast action of the piezoelectric actuators makes it possible to dispense fluid continuously at speeds of up to 150 cycles per second. Depending on the fluid being dispensed, the system can produce consistent shot volumes as small as 2 nanoliters, and the high resolution of the PicoDot valve controller (0.01 milliseconds) makes it possible to adjust deposit size with exceptional precision.
PicoDot valves are available in several different configurations to handle fluids ranging from 50 to 500,000 cps. The LV configuration is designed for use with low-viscosity fluids from 50 to 1,000 cps; the MV configuration covers a range of viscosities from 50 to 200,000 cps; and the HV configuration is specifically designed for fluids with high viscosities of 1,000 to 500,000 cps. Nozzles are available with 150µm, 200µm, 300µm and 400µm orifice diameters to accommodate a range of dot sizes.
In order to determine the optimum valve/nozzle combination for specific applications, EFD has set up labs globally where customers can have their fluid tested according to their process requirements and receive a report with the initial valve driver and controller settings for use as a baseline in an actual production environment.
Most PicoDot valves, except those used exclusively for low-viscosity fluids, incorporate a heater near the fluid channel in order to thin the fluid to its optimum jetting viscosity. Depending on the rate of consumption, fluid can be supplied to PicoDot valves from syringe barrels, tanks or drum unloader systems.
While PicoDot valves will dispense a variety of fluids, including many particle-filled materials, they are not suitable for use with anaerobics or fluids with a pot life of less than four hours, due to the risk of these materials curing inside the valve.
Valve Driver
Each PicoDot valve is powered by a valve driver, which contains the amplifier used to generate the signal for the piezoelectric actuators.
Valve drivers, except those used for low-viscosity fluids, also contain a temperature controller for the heater in the valve. Temperature adjustment affects the temperature of the valve body, which, in turn, affects the temperature of the fluid being dispensed. The maximum temperature attainable is 100°C (212°F) or 180°C (356°F), depending on the driver model. Temperature can be adjusted with the potentiometer on the valve driver, with the PicoDot valve controller (described below), or with a programmable logic controller (PLC) connected to the interface in the valve driver.
Figure 4. A user-friendly menu system makes it easy to set fluid application parameters.
Valve Controller
The PicoDot valve controller is available in 2- and 4-channel configurations. Both versions feature a graphical digital display and a user-friendly menu system (see Figure 4) that makes it easy to set the fluid application parameters for each valve. Complex jetting processes can easily be created on a PC and downloaded by way of the integrated SD card slot. A password protection feature ensures that standard procedures are not changed accidentally, helping to achieve repeatable results.
Figure 5. Sample PicoDot system settings for different fluids.
Jetting results depend on the properties of the fluid itself, the valve configuration chosen, fluid pressure, fluid temperature, open time of the valve, the number of pulses per cycle, the interval between two pulses, and the distance between the valve nozzle and substrate. Figure 5 shows some sample settings.
In general, longer open times, higher pulse counts and higher fluid pressures will produce larger dots, while shorter nozzle-to-substrate distances will produce more well-defined dots.
Long, Trouble-Free Operation
PicoDot jet valves are designed for long, trouble-free operation and require only minimal maintenance, due to the arrangement of the piezoelectric actuators and the wear-resistant ceramic valve seat.
The piezoelectric actuators have a working life of 100,000,000 to 350,000,000 cycles, depending on the jetting frequency and the temperatures used. Preventive maintenance consists of checking the valve seat after every 10,000,000 cycles. Cleaning is easy to perform and involves flushing the fluid channel and cleaning the nozzle plate and sealing ball with a solvent recommended by the fluid manufacturer.
The PicoDot jet dispensing system is a reliable, innovative option for manufacturers seeking to improve process control and reduce costs through exceptional fluid deposit repeatability at high production speeds.
For more information, contact Torsten Brieger,


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Biochemical & Reagents
Our diverse scope of Biochemical Reagents are known for the finding of definite metabolisms. Gone through classical biochemical tests these have the accurate results with an expected color change. These reagents are for detection of in-dole and assist in determining the in dole-positive and in dole-negative microorganisms. Additionally, used for spotting of oxide activity of a bacterial discernment. These optimum quality products determine the power of an organism to disunite in-dole from the tryptophan molecule. Our safe and precisely formulated products are reliable for their various application in the different industries. Harmonious with oxidizing agents, reducing agents etc these Biochemical Reagents find storage under a specific kind of temperature so as to sustain their chemical properties.


Related Pages:
Is TAP® Pest Control Insulation an EPA-registered pesticide?
TAP® Pest Control Insulation, the most TRUSTED pest control insulation on the market today, is an EPA-registered (89140-1) pesticide that is also an insulation. Our product is backed by scientific studies to control bugs and protect your home. Other insulation may be treated by an EPA-registered product to protect the insulation but falls short of protecting your home from pests and the damage they cause to the structure of your home and your family's health. TAP® Pest Control Insulation, however, is an EPA-registered insulation and has the unique advantage of protecting your home from pests. Check out our EPA listing or our product label.
NOTE: Learn more about Treated Insulations vs. EPA-Registered Insulation.
With all of the 'green' claims on products these days, is TAP® Pest Control Insulation truly environmentally friendly?
How long does installation on an existing home take?
It is a strong possibility. First, your current insulation most likely does not have pest control properties, so adding TAP® Pest Control Insulation would be greatly beneficial. Second, the US Department of Energy recommends a fairly significant amount of insulation (R-49) in residential attics. This amount far exceeds most building codes and specs which means that many homes do not have enough insulation. It has been estimated that 65% of homes in the US are under-insulated, and most homes over 10 years old have about 1/3 of the recommended amount of insulation.
Does TAP® Pest Control Insulation have an odor?
No. TAP® Pest Control Insulation does not have an odor ad there is no off-gassing found in many other insulations. The borates in TAP® Pest Control Insulation actually help absorb and reduce any foul odors.
How is TAP® Pest Control Insulation installed?
Isn't cellulose insulation a fire hazard?
What is TAP® Pest Control Insulation made of?
Who can install TAP® Pest Control Insulation?
The government closely regulates any product that claims to have an effect on insects or other pests. Because TAP® Pest Control Insulation is a substance that controls pests, it must be registered with the US Environmental Protection Agency as well as each individual state in which it is sold. These entities mandate that TAP® Pest Control Insulation can only be installed by licensed pest management professionals.
How much does TAP® Pest Control Insulation cost?
How does TAP® Pest Control Insulation reduce my bills?
Where do I buy TAP® Pest Control Insulation?
Ask your trusted pest management professional about TAP® Pest Control Insulation. If they do not offer it, contact us to find a provider near you.
Doesn't all cellulose insulation control pests?
Without proper testing and registration, it is nearly impossible to know if the borates or borate derivatives in cellulose insulation will control insects. Therefore, only products that have and EPA label and have been scientifically tested, such as TAP® Pest Control Insulation, can legally claim to control insects.
The only claims permitted are those which are found on the TAP® Pest Control Insulation EPA label (89140-1) which do not cover mice, rodents, or squirrels. However, TAP® Pest Control Insulation does not act as a food source for these animals.
I received a quote from a contractor and he says his insulation is 'the same thing' as TAP® Pest Control Insulation but cheaper. Is this true?
Absolutely not. TAP® Pest Control Insulation can only be installed by licensed pest management professionals. IF told that a product can affect insects, ask to se the other insulation's EPA label!
Does TAP® Pest Control Insulation'repel' or'resist' insects?


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The XRT uses a grazing incidence Wolter I telescope to focus X-rays onto a state-of-the-art CCD, providing an instrument with 110 cm2 effective area, 23.6 arcmin FOV, 15 arcsec resolution (half-power diameter), and 0.2-10 keV energy range. The layout of the instrument is shown in at the right. A door (pink) based on the JET-X door protects the mirrors during launch. Thermal baffles (purple) provide a warm environment for the front end of the mirrors and prevent any thermal gradients across them from distorting the Point Spread Function (PSF). The mirrors themselves are the FM3 unit manufactured for the JET-X program as flight spares, and are already built, qualified and calibrated. A composite telescope tube holds the focal plane camera (red), which contains a single EEV CCD-22 detector (originally designed for the XMM/EPIC program). The tube extension to the right of the mirrors acts as a sunshade. A thermal radiator at the rear of the instrument is coupled to a Peltier cooler that cools the detector to -110 C.
|Telescope||JET-X Wolter I|
|Focal Length||3.5 m|
|Effective Area||110 cm2@ 1.5 keV|
|Telescope PSF|| 18
arcsec HPD @ 1.5 keV
22 arcsec HPD @ 8.1 keV
|Detector||MAT CCD-22, 600 x 602 pixels|
|Detector Operation||Imaging,Timing, and Photon-counting|
|Detection Element||40 x 40 micron pixels|
|Pixel Scale||2.36 arcsec/pixel|
|Energy Range||0.2-10 keV|
|Sensitivity||2 x 10-14 erg cm-2s-1 in 10^4 s|
There are 3 primary science requirements that drive the design of the XRT: rapid, accurate positions; moderate resolution spectroscopy; and high time resolution lightcurves.
GRB Position Determination: The XRT is required to provide afterglow positions with uncertainty of 5 arcseconds within 100 s of the burst alert from the BAT. Based on Beppo-SAX and RXTE observations of X-ray counterparts of GRBs, we expect that most GRBs observed by Swift will have X-ray fluxes of roughly 0.5 - 5 Crabs in the 0.2-10 keV band. Figure FO-1b shows a simulated XRT image of a GRB, made using raytracing code developed for JET-X and Beppo-SAX and incorporating the measured PSF of the XRT mirrors. The mirror Point Spread Function has a 15 arcsecond Half-Energy Width, and the centroid of a point source image can be determined to much better sub-arcsecond accuracy (in detector coordinates), given sufficient photons. JET-X calibration data and detailed Monte Carlo simulations of XRT observations both show that the XRT will obtain source positions to better than 1 arcsecond in XRT detector coordinates for typical afterglows within 5 seconds of target acquisition (right). When this position is referenced back to the sky, the expected error is about 2.5 arcseconds, due mostly to the alignment uncertainty between the star tracker and the XRT (Swift Alignment Team report.
Spectroscopy: X-ray spectroscopy will provide important information on the GRB/afterglow properties. The GRB itself is produced by internal shocks, while the afterglow is produced by external shocks with the ambient medium. These external shocks heat the surrounding medium to extremely high temperatures, and the gas radiates through characteristic emission lines and continuum as it cools. It can also be absorbed by cooler gas in the host galaxy. Observations of the X-ray spectrum may therefore detect emission lines or absorption edges, which can provide direct information on such parameters as the composition and ionization structure of the shocked gas and the redshift of the GRB source (Ghisellini et al. 1999, Astrophysical Journal, 517, p. 168). An example is shown in the spectrum to the left, where a strong 6.4 keV Fe line at z=1.0 is measured with 1% accuracy in redshift. (The line is red-shifted to an apparent energy of 3.2 keV, and is apparent as a large positive deviation at that energy in the lower plot of residuals between the data and the continuum model.)
The requirement is for the XRT to provide spectra with 200 eV resolution at 6 keV within 1200 seconds of the burst. The XRT resolution at launch will be about 130 eV at 6 kev, and spectra similar to that shown here will be obtained routinely. The resolution will degrade during the mission, but remains below 200 eV at end of life for a worst-case radiation environment. We will transmit spectra like these to the ground through our TDRSS link within 300 seconds of the BAT burst alert.
Lightcurves: The XRT is required to provide accurate photometry and lightcurves with at least 50 ms time resolution. Two timing sub-modes will be implemented, based on the timing modes used on JET-X and XMM/EPIC: high timing mode, which gives the highest time resolution at 0.5 ms, and medium timing mode, which is less susceptible to contaminated fields and provides about 4 ms time resolution. Photometric accuracy will be good to 10% or better for source fluxes ranging from our sensitivity limit of 2x10-14 ergs/cm2/s to roughly 8x10-7 ergs/cm2/s (about 4 times brighter than the brightest X-ray burst observed to date). With this capability, the XRT can make crucial determinations of time structure in the afterglow. Time variations (DT/T) as small as 1/300 can be observed and used to study internal to external shock transitions.


Aviation Stories
If you have a story to tell click here!
2. The ONLY time you have too much fuel is when you are on fire!!
4. A "good" landing is one from which you can walk away from. A "great" landing is one after which you can use the plane again.
5. You know you've landed wheels up when it takes full power to taxi
6. The probability of survival is inversely proportional to the angle of arrival. Large angle of arrival, small probability of survival and vice-versa.
7. Stay out of clouds. Reliable sources report that mountains have been known to hide in clouds.


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|MadSci Network: Physics|
Well this is a complicated question and I would refer you to any college level physics book, but here is the short of it... Gamma and x-rays are part of the electromagnetic spectrum and as such have no mass or charge. The interaction between the rays and other materials is at the atomic level, by that I mean that as these rays pass near the electron clouds of other atoms they may (or may not) give (tranfer) some (or all) of their energy to a lucky electron of that atom. The electron is then offered more energy that it would otherwise have and is sent off in motion and thus "stripped" from the parent atom (this is called ionization). The interaction of an x or gamma ray is by indirectly transfering some of it's energy to these electrons which is a function of the probability that the ray will come close enough to tranfer the energy. So it is a probability relationship. The higher the probability the higher the chance of transfer of energy. So why lead?? Well it's not just lead that can stop (shield) x or gamma rays. It is a function of how many targets (atoms) you give it a chance to interact with. So the higher the target materials density (atoms/area) the higher the probability the tranfer of energy will take place. The most common high density material is... Lead!! We also use Uranium and Tungstun. Both have densities greater that lead and thus shield better because they create a higher probability the ray will indirecty interact. Hope this helps
Try the links in the MadSci Library for more information on Physics.


text: 1. The problem statement, all variables and given/known data let f:[0,oo) -> R be given by f(x) = sin(x) / x for x>0 and f(0) = c. Prove that f is improper riemann integrable without computing the integral explicitly 3. The attempt at a solution I've attempted to find a upperbound for f(x) such that the integral does not diverge. The most simple one is to use the fact that sin(x) <= 1 for all x, but this gives a divergent integral. I've already proved that f is Lebesgue measurable for every c in R. So I could turn the integral [tex]\int_0^R f(x) dx[/tex] into a Lebesgue integral and then use one of the convergence theorems to try to show with them that the integral does not diverge. But I haven't succeded in doing this :( Can anyone help me out?


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Definition - What does Antifreeze Poisoning mean?
Antifreeze Poisoning, also known as Ethylene Glycol Poisoning, is poisoning that occurs after ingestion of antifreeze used in cooling engines of the automobile or other machines that use coolants. Engine coolants can also cause Antifreeze positioning because of the presence of poisonous ingredients such as Ethylene Glycol, Methanol and Propylene Glycol. However, the primary ingredient that causes Antifreeze Poisoning is Ethylene Glycol.
Petropedia explains Antifreeze Poisoning
The primary ingredient of automotive coolant or antifreeze is Ethylene glycol which is a toxic, odorless, colorless and a non volatile liquid that has a sweet taste which has poisoning effect when consumed by humans or animals. Some of the symptoms caused when it is consumed are vomiting, intoxication, cardiovascular dysfunction and kidney failure. The major cause of the poisoning effect is the presence of oxalic acid and glycolic acid. Once antifreeze poisoning is detected, it should be treated by conducting hemodialysis which helps in removing Ethylene Glycol.


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For those types of system where instead of a standard data screen:
It would be better to use a form based input screen:
You can easily accomplish this by using one or more input screens to replace the standard data screens.
Defining the forms
The forms to be used are defined as part of the settings for the data set:
This displays the Settings screen:
You defined the forms to be used in the InputForms entry.
Each line establishes the form to be used as well as other options available:
The simplest entry is the generic name, which is a form name without the ## symbols in the name. This name indicates that the form can be used for any type of input, for example in Law, the form can be used for both Workers Compensation and Vehicle Accident.
A typed name is indicated by entering the ## symbol followed by the type for which the form applies. Only in those situations that the type of case matches the form type is the form included.
Note that the same form can be used multiple times with different types.
In both cases, the forms is looked up using the name wthout any type modifier, so for Extended Intake ## Vehicle Accident, the form that is used is Extended Intake.
Overriding a form for a specific type
Once the form name is established, eCandidus looks for a form in the following sequence:
This means that you can create forms for specific case types using the name ## type as the form name and forms for all other case types by leaving the case type out.
eCandidus™ Desktop will use the first form allowed for the case type as the first or default screen:
The list of all available forms is displayed in the drop down box in the lower left corner of the screen.
When you select a form from the list, eCandidus™ Desktop will add it to the list of open forms:
If the form had been selected before, it will be brought to the top of the screen.
Input Forms per Associate Type
You can also define input forms that apply only for specific associate type:
This allows your office to work with the normal data screen except for those associates that are doing intakes or special work.
All forms used are screen are automatically made into interactive forms, but only while being used as data entry.


L5r: Legend of the Five Rings
Kakita Isako
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Kakita Isako was a renowned bladesmith of the Crane Clan. Alongside with Asahina Yuri, a crafter of nemuranai, the two woman sought the unique weapon known as Dragon's Claw Katana, which was in the hands of Daidoji Kedamono's descendant. After several months of careful observation, they fashioned eight copies of the original sword, two for each of the families of the Crane. They took three years to complete the weapons, and the toll was so grat that both were found unconscious the morning after their work was finished. The "patronesses of the blade" had aged 50 years overnight. Those whose actions would dishonor the Crane caused the weapons to bend and warp into useless pieces of metal. [1]
 1. Prayers and Treasures, pp. 123-124
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Will it take longer for students to graduate because of the pandemic? valentinrussanov/E+ via Getty Images
Based on the association's findings and my own research regarding academic achievement and socioeconomic status, I believe it's likely, based on these early projections, that the widespread and rapid switch to remote schooling will have negative long-term academic consequences.
One possibility is that the share of students who end up repeating at least one grade at some point could rise due to this unprecedented disruption.
According to government data collected in 2018, only about 6% of U.S. students had to repeat a grade before graduating from high school prior to the COVID-19 pandemic.
Any potential effort to make students repeat a grade when they can't demonstrate they have learned enough to advance to the next one would build on some recent precedents.
Starting in 2001 with the No Child Left Behind Act, reading proficiency by third grade became one of the federal mandates for schools to receive designated streams of federal funding.
This federal legislation, combined with research indicating that children who couldn't yet read fared better when they repeated a grade, brought about a wave of state-level legislation. So far, a total of 16 states have enacted laws that prevent students from moving on from third grade until they are considered proficient on standardized reading tests.
These state laws vary. Some states, like Florida, require students who aren't reading well enough to repeat third grade altogether. Others, such as Minnesota, let children move onto fourth grade and provide them with supplemental reading assistance until they can read at what the state deems to be a third-grade level. In practice, students typically don't repeat more than one grade.
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I consider it likely that the academic consequences of the extended period of remote learning that began in March 2020 will be unequal. These consequences are bound to fall more heavily on students who are growing up facing persistent economic hardship.
The practice of making children who are struggling to learn how to read repeat third grade, however well-intentioned, can be risky. For example, students who repeat a grade can feel stigmatized and less motivated to learn.
Therefore, I believe parents, educators and policymakers will all need to try to address the inevitable gaps in learning bound to arise from widespread remote learning during the pandemic.
Read more:
Pamela Davis-Kean receives funding from the National Science Foundation and the National Institute for Child Health and Development (NICHD).
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More than one in two Australians who have a long-term health condition or disability experiences social exclusion.
Poor health and disability are strongly linked to social exclusion in Australia. In measuring social exclusion from the latest data (2010) we found that 52% of Australians who have a long-term health condition or disability experience some level of exclusion. One in eight (13%) experience deep social exclusion.
Over the 2001–10 period we measured, the frequency of social exclusion among people with a long-term health condition or disability dropped from 61% to 52%. The frequency of deep social exclusion also fell, from 21% to 13%.
In the graph below, the 'all social exclusion' line shows the total of marginal social exclusion and deep social exclusion.
To copy this graph for your own use, right-click on the image (or control-click on a Mac) and paste the graph into your document. Please credit 'The Brotherhood of St Laurence and the Melbourne Institute 2012'.
See data table for this graph and note on updated indicators.
The social exclusion monitor is the work of the Brotherhood of St Laurence and the Melbourne Institute of Applied Economic and Social Research (MIAESR). This page was updated using analysis of Wave 10 of the HILDA Survey in November 2012.


Industrial Drivers MCQ - Set 03 - ObjectiveBooks
Industrial Drivers MCQ - Set 03
Practice Test: Question Set - 03
1. Ward-Leonard controlled D.C. drives are generally used for _________ excavators.
 (A) Light duty
 (B) Medium duty
 (C) Heavy duty
 (D) All of the above
2. The starting torque of a D.C. motor is independent of which of the following?
 (A) Flux
 (B) Armature current
 (C) Flux and armature current
 (D) Speed
3. __________ method of starting a three phase induction motor needs six terminals.
 (A) Star-delta
 (B) Resistance starting
 (C) Autotransformer
 (D) None of the above
4. Which of the following machines has heavy fluctuation of load?
 (A) Printing machine
 (B) Punching machine
 (C) Planer
 (D) Lathe
5. Which of the following motors is preferred when quick speed reversal is the main consideration?
 (A) Squirrel cage induction motor
 (B) Wound rotor induction motor
 (C) Synchronous motor
 (D) D.C. motor
6. For a D.C. shunt motor which of the following is incorrect?
 (A) Unsuitable for heavy duty starting
 (B) Torque varies as armature current
 (C) Torque armature current is a straight line
 (D) Torque is zero for zero armature current
7. Besides a constant speed a synchronous rotor possesses which of the following advantages?
 (A) Lower cost
 (B) Better efficiency
 (C) High power factor
 (D) All of the above
8. In ________ the speed can be varied by changing the position of brushes.
 (A) Slip ring motor
 (B) Schrage motor
 (C) Induction motor
 (D) Repulsion motor
9. Which of the following motors is usually preferred for kiln drives?
 (A) Cascade controlled A.C. motor
 (B) Slip ring induction motor
 (C) Three phase shunt wound commutator motor
 (D) Any of the above
10. For which of the following applications D.C. motors are still preferred?
 (A) High efficiency operation
 (B) Reversibility
 (C) Variable speed drive
 (D) High starting torque
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Using Common Table Expressions
A CTE can be used to:
 - Reference the resulting table multiple times in the same statement.
The basic syntax structure for a CTE is:
( CTE_query_definition )
The statement to run the CTE is:
SELECT
FROM expression_name;
The following example shows the components of the CTE structure: expression name, column list, and query. The CTE expression Sales_CTE has three columns (SalesPersonID, NumberOfOrders, and MaxDate) and is defined as the total number of sales orders and the most recent sales order date in the SalesOrderHeader table for each salesperson. When the statement is executed, the CTE is referenced two times: one time to return the selected columns for the salesperson, and again to retrieve similar details for the salesperson's manager. The data for both the salesperson and the manager are returned in a single row.
USE AdventureWorks;
WITH Sales_CTE (SalesPersonID, NumberOfOrders, MaxDate)
 SELECT SalesPersonID, COUNT(*), MAX(OrderDate)
 FROM Sales.SalesOrderHeader
 GROUP BY SalesPersonID
SELECT E.EmployeeID, OS.NumberOfOrders, OS.MaxDate,
 E.ManagerID, OM.NumberOfOrders, OM.MaxDate
FROM HumanResources.Employee AS E
 JOIN Sales_CTE AS OS
 ON E.EmployeeID = OS.SalesPersonID
 ON E.ManagerID = OM.SalesPersonID
ORDER BY E.EmployeeID;
Here is a partial result set:
EmployeeID NumberOfOrders MaxDate ManagerID NumberOfOrders MaxDate
268 48 2004-06-01 273 NULL NULL
_PHONE_-01 268 48 2004-06-01
_PHONE_-01 268 48 2004-06-01
_PHONE_-01 268 48 2004-06-01
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text:
Communication à un séminaire :
, « The Impact of the Reason for Layoff on the Subsequent Unemployment Duration »
, Department Seminar
, TSE, Toulouse, 15 mai 2009, 14:00-15:30, salle MF 323.
This paper estimates the impact of the reason for layoff (economic or personal) on the length of the subsequent unemployment spell, exploiting the French Labour Force Survey. In order to control for an eventual endogeneity of the reason for layoff, a joint model of the type of layoff and unemployment duration is proposed. The length of the unemployment spell is estimated to be significantly shorter after a layoff for economic reasons than after a layoff for personal reasons, especially for nonsupervisory workers with less than a high school degree. We interpret these findings as a sign that the type of layoff is used by prospective employers as a signal of unobserved worker's productivity.
layoffs, unemployment, duration, signals
C34 : Truncated and Censored Models
C35 : Discrete Regression and Qualitative Choice Models; Discrete Regressors
J63 : Turnover; Vacancies; Layoffs
J64 : Unemployment: Models, Duration, Incidence, and Job Search


text:
pubs is a valid word in this word list. For a definition, see the external dictionary links below.
The word "pubs" uses 4 letters: B P S U.
No direct anagrams for pubs found in this word list.
Words formed by adding one letter before or after pubs (in bold), or to bpsu in any order:
e - pubes i - pubis m - bumps r - burps
Shorter words found within pubs:
bus pub pus sub sup up ups us
List shorter words within pubs, sorted by length
Words formed from any letters in pubs, plus an optional blank or existing letter
Try a search for pubs in these online resources (some words may not be found):
OneLook Dictionaries -
Each search will normally open in a new window.
List all words starting with pubs, words containing pubs or words ending with pubs
All words formed from pubs by changing one letter
Other words with the same letter pairs: pu ub bs
Browse words starting with pubs by next letter
Previous word in list: publishings
Next word in list: puccoon
Some random words: frantic


Friction: When the rubber meets the road!!!
This Intergating Technology ebook was created by Joshua Coleman for the 8th grade science classes of Burney Harris Lyons Middle School.
stand back
burn out
GPS standard S8P1: Students will investigate the relationship between force, mass, and the motion of objects.
PLO: Students will be able to scientifically explain the phenomenon of friction between rubber tires and and road surfaces.


Origins of Measurement Equipment
I have been tasked with writing an essay on height gauges to include (obviously) the invention of. The farthest back I can trace it is to a German company catalog from 1905 (which, at least, tells me it was invented before this).
While Vernier invented a scale for use he did not invent a height gauge (or calipers for that matter).
Any information would be appreciated.


text:
YOUSRC (_URL_) is a free web-based environment where students can learn how to code for web or Android. Using a simple programming language YOUSRC is a great first step into programming real code, and a bridge for students from visual coding environments like Scratch towards more complex languages such as C or Java.
YOUSRC apps run on a web browser and, unchanged, on Android mobile devices. The development environment is totally web based and no software other than the Java runtime environment needs to be installed on school machines.
YOUSRC is child-safe and family-friendly. Teachers are given "teacher privileges" on the site so they can register your own students and monitor the apps they write and the sound or image assets they use.
Plenty of examples and tutorials on the site help students get started. Apps can also be embedded in your school's website to showcase work to the outside world.
We now have hundreds of students using YOUSRC, many for GCSE computing, though some younger and older students are using it too.
Any Android device with version 2.1 or later
Programming is a creative experience and even some typically unmotivated students find the idea of coding apps on YOUSRC that run on Android highly motivating
Programming skills have relevence to many careers, not just as a programmer, but also around product management, procurement, legal, etc, in high-tech businesses.
YOUSRC is an ideal platform to support courses like GCSE Computing
Collaborative working on app design and development can include students with many skills and so help enrich students who do music and art for example, not just programming.
YOUSRC is child-safe and family-friendly. This includes screening of all sounds and images to avoid assets which are not appropriate, screening of all forum posts, no direct messaging between site users, etc.


text:
The biodegradation of 16 polycyclic aromatic hydrocarbons (PAHs), listed as priority pollutants by the USEPA, present in a coal-tar-contaminated soil from a former manufactured gas plant site was investigated using laboratory-scale in-vessel composting reactors to determine the suitability of this approach as a bioremediation technology. Preliminary investigations were conducted over 16 weeks to determine the optimum soil composting temperature (38, 55 and 70 degrees C). Three tests were performed; firstly, soil was composted with green-waste, with a moisture content of 60%. Secondly, microbial activity was HgCl2-inhibited in the soil green-waste mixture with a moisture content of 60%, to evaluate abiotic losses, while in the third experiment only soil was incubated at the three different temperatures. PAHs and microbial populations were monitored. PAHs were lost from all treatments with 38 degrees C being the optimum temperature for both PAH removal and microbial activity. Calculated activation energy values (E(a)) for total PAHs suggested that the main loss mechanism in the soil-green waste reactors was biological, whereas in the soil reactors it was chemical. Total PAH losses in the soil-green waste composting mixtures were by pseudo-first order kinetics at 38 degrees C (k = 0.013 day(-1), R2 = 0.95), 55 degrees C (k = 0.010 day(-1), R2 = 0.76) and at 70 degrees C (k = 0.009 day(-1), R2 = 0.73).
- Biodegradation, Environmental
- Models, Theoretical
- Polycyclic Hydrocarbons, Aromatic
- Population Dynamics
- Soil Pollutants


text:
When you visit Myanmar, you will encounter ah-lhu one day or another. What is ah-lhu? It is in deed a religious donation ceremony. People usually do ah-lhu when they donate food and offerings to the monk or the monastry. It can be a sole even. Or it can be in celebration for the wedding, anniversary, or to mark the day a family member died. People usually do ah-lhu at home or at the monastery.
Usually, on the day of ah-lhu, monks are invited to the home. They are then offered food and offerings, after which monks recite Buddha's scriptures and give sermon. After the monks go back to the monastery, meal is served to the invited gusts. This is usually a Burmese formal lunch, although sometimes, it can be monhingha, a popular Burmese noodle soup.
Ah-lhu is an integral part of Myanmar Buddhist life, and most Myanmar people, if they could afford, will do ah-lhu quite frequently.
- Mindat – a Southern Chin Town If you ever want to visit Chin Hills, Mindat is...
Do you like this post? Perhaps you might want to subscribe to my blog.


text:
Author: Alison Wray, Cardiff University
Author: Aileen Bloomer, York St John University College
Paperback: ISBN: _PHONE_ Pages: 320 Price: U.K. £ 19.99
Projects in Linguistics is a unique and essential guide to anyone doing a research project in language and linguistics. It has been updated to include a new section on how to avoid plagiarism using the internet. This book presents overviews of the main areas of inquiry typically targeted by students and offers practical help in identifying a topic, finding background reading, planning and designing a study, collecting and analysing data, and writing a convincing account. With over 300 practical ideas that can be used directly or adapted to suit different contexts and interests, this textbook will be an invaluable resource to undergraduates, pre-university and postgraduate students.


text:
Step 4: Luge Maintenance
Aside from volatile weather, other things such as particles of grass and flecks of dirt that litter the course can jeopardize its integrity, attracting sunlight and acting as heat sinks. Falk extends the life of the luge by scouring the course for stray particles.
Sometimes, dicey curves call for experimental methods. In one section of Falk's luge, the terminal curve under the trees in his sketch, he inserted a ping-pong table into the wall of the curve to fortify it. "It all started because we didn't want the kids to go in the creek," Falk recalls. "I stuck a little bench beside the ping-pong table and leaned it on a 45-degree angle and packed snow under and around it." If there are trees or other backyard hazards flanking any of your curves, try reinforcing the walls with a firm object. Falk also suggests padding potential threats with foam or bales of hay.


text:
Nilanjana S. Roy at India Ink / NYT:
"Some men like Jack/ and some like Jill; / I'm glad I like them both; but still…/ In the strict ranks/ of Gay and Straight/ What is my status?/ Stray? or Great?"
When Vikram Seth wrote "Dubious" many years ago, he may not have realized how long his poem would live. "Dubious" has become an anthem for Indians unwilling to be straitjacketed into heterosexuality, unwilling to accept the argument often put forward that being homosexual, lesbian, transgendered or transsexual is against Indian culture.
Seth had a long line of predecessors, as the scholar Devdutt Patnaik and the academics Saleem Kidwai and Ruth Vanita have noted. The "Markandeya Purana" carries the story of Avikshita, the son of a king who refused to marry because he believed he was a woman.
Gender was fluid, for yakshas and humans alike, in ancient and medieval Indian culture. The Mahabharata famously tells the story of Amba, the princess who was abducted by Bhishma but rejected by the warrior, who had taken a vow of celibacy. Praying to avenge the insult, Amba is reborn as Shikhandini, daughter to King Dhrupada, and then prays for a further transformation into Shikhandi — as a man, she can fight Bhishma, and becomes the cause of his death on the battlefield. More:


text:
Travelling at Light Speed
Date: 04/11/98 at 16:20:00 From: Mr. DEAN LOWELL CRUMMY Subject: LIGHT TRAVEL How long in time, not distance, would it take to go to Mars or Jupiter? At light speed?
Date: 04/13/98 at 09:48:19 From: Doctor Barrus Subject: Re: LIGHT TRAVEL Hi, Dean! It depends on how far away from Mars or Jupiter the earth is. The earth, according to: _URL_ is located an average of 150 million kilometers away from the sun, and Jupiter and Mars are at average distances of 780 and 228 millions of kilometers away from the sun, respectively. But every planet is revolving around the sun, and at different rates, so the distance from planet to planet is constantly changing. So, assuming that the sun, the Earth, and Mars were all lined up (which they're not), you could have Mars and Earth as close together as (228 - 150 =)78 million kilometers... <---------------228----------> (Sun) * * Earth Mars <------150----------><---78-->... or as far apart as (228 + 150 = )378 million kilometers: * (Sun) * Mars Earth <---------228-----------><----150-------> Similarly, distances between Earth and Jupiter could be anything from around 630 million kilometers to 930 million kilometers. Of course, these calculations aren't exact, because the two planets and the sun rarely line up like in the diagrams above, and the distances I used are just average distances -- the planets can be closer to or farther away from the sun. I just gave the example above so that you could see that the distances can really vary. But let's suppose that we know the exact distance between the earth and another planet. Then to find out how long the trip would be, we'd use the formula distance = speed * time to get distance time = ---------- speed So, suppose the Earth and Mars are 200 million kilometers away from each other right now. Then a trip to Mars would take time t, where t = (200 million kilometers)/(speed of light) = (2 * 10^11 meters)/(3.0 * 10^8 meters per second) [Here, I just converted the kilometers into meters (using the fact that there are 1000 meters in a kilometer), wrote the distance in scientific notation (so it's easier to calculate), and wrote out approximately what the speed of light is.] So: t = 667 seconds (approximately) which translates to 11 minutes and 7 seconds. (NOTE: This is how long someone on *earth* would see the trip as taking. A person actually on the ship to Mars, traveling at the speed of light, wouldn't be aware of ANY time passing. This would happen because of the phenomena that Einstein explained in his theory of relativity.) So in summary, it isn't possible to answer your question exactly, because the distances between earth and Mars and Jupiter are always changing, and therefore the times required to travel to them at light speed also change. If we did know the exact distance, though, we could figure out approximately how long a journey of that kind would take. -Doctor Barrus, The Math Forum Check out our web site! _URL_
Search the Dr. Math Library:
Ask Dr. MathTM
© _PHONE_ The Math Forum


text:
Work and energy problems worksheet
Work and Energy Problem F POWER PROBLEM Martinus Kuiper of the Netherlands ice skated for 24 h with an average speed of 6.3 m/s. Suppose Kuiper's mass was 65 kg. If Kuiper provided 520 W of power to accelerate for 2.5 s, how much work did he do? SOLUTION Given: P = 520 W ∆t = 2.5 s Unknown: W =? Use the equation for power and rearrange it... Created Date: 20111111081846Z
Energy Work Problems Some of the worksheets for this concept are Physics work work and energy, Work energy problems, Name period date, Physics work and energy work solutions, Physics work and energy work solutions, Kinetic energy work, Work word problems, Topic 5 work and energy. Physics Worksheet Work and Energy Section: Name: Mr. Lin 2 20. A skater of mass 60 kg has an initial velocity of 12 m/s. He slides on ice where the frictional force is 36 N. How far will the skater slide before he stops? 21. A diver of mass m drops from a board 10.0 m above the water surface. Work, Energy and Power: Problem Set Problem 1: Renatta Gass is out with her friends. Misfortune occurs and Renatta and her friends find themselves getting a workout. They apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station. Determine the work done on the car. Audio Guided Solution Worksheet: Work Work Power and Energy Page 1 of 2 Write the equation and units for work: 1. How much work does Bobby perform in pushing a 35 N crate a distance of 4 meters? list known values formula substitution answer & units 2. How far will a 70 N crate be moved if 3500 J or work are accomplished?
Additional Worksheets. Work worksheet. Creating Work Problems worksheet. Energy worksheet. Creating Energy Problems worksheet. Momentum worksheet. Creating Momentum Problems worksheet. Impulse worksheet. Power worksheet. Labs & Activities Directory. Determining the Velocity of a Steel Ball Using a B... Work, Energy & Momentum Demonstration List Mechanics: Work, Energy and Power Worksheet Name: Work. Questions: A tugboat pulls a ship with a constant net horizontal force of 5.00 x 103 N and causes the ship to move through a harbor. How much work is done on the ship if it moves a distance of 3.00 km?
Determine how to approach the problem. We apply the work-energy theorem. We know that all the car's kinetic energy is lost to friction. Therefore, the change in the car's kinetic energy is equal to the work done by the frictional force of the car's brakes. Start studying Work and Energy Vocabulary. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Physics Worksheet Work and Energy Section: Name: Mr. Lin 2 20. A skater of mass 60 kg has an initial velocity of 12 m/s. He slides on ice where the frictional force is 36 N. How far will the skater slide before he stops? 21. A diver of mass m drops from a board 10.0 m above the water surface.