In the 1990s, an experiment conducted in Los Alamos, about 35 miles northwest of the capital of New Mexico, appeared to find something odd.
Scientists designed the Liquid Scintillator Neutrino Detector experiment at the US Department of Energy's Los Alamos National Laboratory to count neutrinos, ghostly particles that come in three types and rarely interact with other matter.
LSND was looking for evidence of neutrino oscillation, or neutrinos changing from one type to another.
Several previous experiments had seen indications of such oscillations, which show that neutrinos have small masses not incorporated into the Standard Model, the ruling theory of particle physics. LSND scientists wanted to double-check these earlier measurements.
By studying a nearly pure source of one type of neutrinos—muon neutrinos—LSND did find evidence of oscillation to a different type of neutrinos, electron neutrinos. However, they found many more electron neutrinos in their detector than predicted, creating a new puzzle.
This excess could have been a sign that neutrinos oscillate between not three but four different types, suggesting the existence of a possible new type of neutrino, called a sterile neutrino, which theorists had suggested as a possible way to incorporate tiny neutrino masses into the Standard Model.
Or there could be another explanation. The question is: What? And how can scientists guard against being fooled in physics?
Many physicists are looking for results that go beyond the Standard Model. They come up with experiments to test its predictions; if what they find doesn't match up, they have potentially discovered something new.
"Do we see what we expected from the calculations if all we have there is the Standard Model?" says Paris Sphicas, a researcher at CERN.
A long list of possible factors can trick scientists into thinking they've made a discovery. A big part of scientific research is identifying them and finding ways to test what's really going on.
In the case of the LSND anomaly, scientists wonder whether unaccounted-for background events tipped the scales or if some sort of mechanical problem caused an error in the measurement.
Scientists have designed follow-up experiments to see if they can reproduce the result. An experiment called MiniBooNE, hosted by Fermi National Accelerator Laboratory, recently reported seeing signs of a similar excess. Other experiments, such as the MINOS experiment, also at Fermilab, have not seen it, complicating the search.
Much of the work in understanding a signal involves preparatory work before one is even seen.
Physicists can predict backgrounds through simulations of experiments. Some types of detector backgrounds can be identified through "null tests," such as pointing a telescope at a blank wall. Other backgrounds can be identified through tests with the data itself, such as so-called "jack-knife tests," which involve splitting data into subsets—say, data from Monday and data from Tuesday—which by design must produce the same results. Any inconsistencies would warn scientists about a signal that appears in just one subset.
Researchers looking at a specific signal work to develop a deep understanding of what other physics processes could produce the same signature in their detector. MiniBooNE, for example, studies a beam primarily made of muon neutrinos to measure how often those neutrinos oscillate to other flavors. But it will occasionally pick up stray electron neutrinos, which look like muon neutrinos that have transformed. Beyond that, other physics processes can mimic the signal of an electron neutrino event.
Even more variable than a particle beam: human beings. While science strives to be an objective measurement of facts, the process itself is conducted by a collection of people whose actions can be colored by biases, personal stories and emotion. A preconceived notion that an experiment will (or won't) produce a certain result, for example, could influence a researcher's work in subtle ways.
Staying cognizant of this fact and incorporating methods for removing bias are especially important if a particular claim upends long-standing knowledge—such as, for example, our understanding of neutrinos. In these cases, scientists know to adhere to the adage: Extraordinary claims require extraordinary evidence.
Physicists have been burned by dragons before. In 1969, for example, a scientist named Joe Weber announced that he had detected gravitational waves: ripples in the fabric of space-time first predicted by Albert Einstein in 1916. Such a detection, which many had thought was impossible to make, would have proved a key tenet of relativity. Weber rocketed to momentary fame, until other physicists found they could not replicate his results.
The false discovery rocked the gravitational wave community, which, over the decades, became increasingly cautious about making such announcements.
So in 2009, as the Laser Interferometer Gravitational Wave Observatory, or LIGO, came online for its next science run, the scientific collaboration came up with a way to make sure collaboration members stayed skeptical of their results. They developed a method of adding a false or simulated signal into the detector data stream without alerting the majority of the 800 or so researchers on the team. They called it a blind injection. The rest of the members knew an injection was possible, but not guaranteed.
In late 2010, the team got the alert they had been waiting for: The computers detected a signal. For six months, hundreds of scientists analyzed the results, eventually concluding that the signal looked like gravitational waves. They wrote a paper detailing the evidence, and more than 400 team members voted on its approval. Then a senior member told them it had all been faked.
Picking out and spending so much time examining such an artificial signal may seem like a waste of time, but the test worked just as intended. The exercise forced the scientists to work through all of the ways they would need to scrutinize a real result before one ever came through. It forced the collaboration to develop new tests and approaches to demonstrating the consistency of a possible signal in advance of a real event.
All of the hard work paid off: In September 2015, when an authentic signal hit the LIGO detectors, scientists knew what to do. In 2016, the collaboration announced the first confirmed direct detection of gravitational waves. One year later, the discovery won the Nobel Prize.
While blind injections worked for the gravitational waves community, each area of physics presents its own unique challenges.
Neutrino physicists have an extremely small sample size with which to work, because their particles interact so rarely. That's why experiments such as the NOvA experiment and the upcoming Deep Underground Neutrino experiment use such enormous detectors.
Astronomers have even fewer samples: They have just one universe to study, and no way to conduct controlled experiments. That's why they conduct decades-long surveys, to collect as much data as possible.
Researchers working at the Large Hadron Collider have no shortage of interactions to study—an estimated 600 million events are detected every second.
But due to the enormous size, cost and complexity of the technology, scientists have built only one LHC. That's why inside the collider sit multiple different detectors, which can check one another's work by measuring the same things in a variety of ways with detectors of different designs.
While there are many central tenets to checking a result—knowing your experiment and background well, running simulations and checking that they agree with your data, testing alternative explanations of a suspected result—there's no comprehensive checklist that every physicist performs. Strategies vary from experiment to experiment, among fields and over time.
Scientists must do everything they can to test a result, because in the end, it will need to stand up to the scrutiny of their peers. Fellow physicists will question the new result, subject it to their own analyses, try out alternative interpretations, and, ultimately, try to repeat the measurement in a different way. Especially if they're dealing with dragons.
From Fermilab , an enduring source of strength for the US contribution to scientific research world wide.
A New Mexico State University professor is part of an international research team that recently released the results of an experiment that may support a theory for a fourth fundamental particle – the mysterious sterile neutrino that passes through matter without interacting with it….
MiniBooNE's oil tank is 12 meters in diameter and lined with 1,520 photodetectors. Ryan Patterson / Princeton / Fermilab.
The preprint article has been submitted to a peer-reviewed journal and is available at: https://arxiv.org/abs/1805.12028 Observation of a Significant Excess of Electron-Like Events in the MiniBooNE Short-Baseline Neutrino Experiment.
Physicists working on the Mini Booster Neutrino Experiment (MiniBooNE) at Fermilab in the US have released new results that they argue provide strong evidence for the existence of a new type of particle known as a sterile neutrino. The researchers say that their data are fully consistent with a previous hint of sterile neutrinos that emerged more than 20 years ago from the Liquid Scintillator Neutrino Detector (LSND) at the Los Alamos National Laboratory in New Mexico, although other groups have failed to reproduce the findings.
Sterile neutrinos, if they exist, would be even more elusive than standard neutrinos, which themselves are chargeless and nearly massless. The Standard Model of particle physics tells us that neutrinos come in three flavours – electron, muon and tau – and that they "oscillate" from one flavour to another as they travel through space. But some extensions of the Standard Model predict that these known neutrinos can also oscillate into and out of sterile neutrinos, which might not interact at all with any other ordinary matter.
MiniBooNE monitors the tiny flashes of light that are produced occasionally when electron neutrinos interact with atomic nuclei in about 800 tonnes of pure mineral oil contained in a spherical tank located underground on the Fermilab site near Chicago.
Those neutrinos are generated after protons from the lab's Booster accelerator are fired into a beryllium target to create muon neutrinos, which then oscillate to electron neutrinos as they travel several hundred metres through the Earth to the detector.
In a preprint uploaded recently to the arXiv server, the MiniBooNE collaboration reports having detected far more electron neutrinos than would be expected from purely Standard Model oscillations after collecting data for 15 years. According to collaboration member William Louis of Los Alamos, the measurement suggests that some of the muon neutrinos oscillate into sterile neutrinos that in turn transform into electron neutrinos. That interpretation, he says, is bolstered by the fact that the variation of electron-neutrino excess with neutrino energy – a parameter of neutrino oscillations – seen in MiniBooNE matches that recorded at Liquid Scintillator Neutrino Detector. He and his colleagues conclude that the combined excess from the two experiments has a statistical significance of 6.1σ, which is well above the 5σ that is normally considered a discovery in particle physics.
Although MiniBooNE is quite similar to LSND – in using mineral oil to observe neutrinos from an accelerator-based source – and indeed has inherited personnel from the earlier project, its researchers are nevertheless confident that there are no common sources of error. "We think that is very unlikely," says Louis. "The two experiments have very different energies and backgrounds, and therefore very different possible systematic errors".
However, the existence of sterile neutrinos is not yet a done deal. While some groups operating experiments that exploit neutrinos from nuclear reactors or radioactive sources have also gathered (somewhat weaker) evidence for the hypothetical particles, other groups have looked and found nothing. These include the IceCube collaboration, which operates a detector at the South Pole, and the now completed Main Injector Neutrino Oscillation Search (MINOS) at Fermilab.
Indeed, some physicists outside the MiniBooNE collaboration have told Physics World that they remain unconvinced by the latest results.
To try and settle the issue, numerous other dedicated experiments are either operating or under development. For their part, Louis and colleagues are currently setting up another three detectors at Fermilab – one of which is now running – to monitor the neutrino flux closer to the beryllium target than MiniBooNE and also further away. The idea, he says, is to show beyond doubt that the electron neutrino excess really is due to oscillations, given that the measured oscillation rate should vary with distance from the source as well as with energy. Results are expected "over the next three to five years," he says.
MiniBooNE scientists demonstrate a new way to probe the nucleus with muon neutrinos.
Tiny particles known as neutrinos are an excellent tool to study the inner workings of atomic nuclei. Unlike electrons or protons, neutrinos have no electric charge, and they interact with an atom's core only via the weak nuclear force. This makes them a unique tool for probing the building blocks of matter. But the challenge is that neutrinos are hard to produce and detect, and it is very difficult to determine the energy that a neutrino has when it hits an atom.
This week a group of scientists working on the MiniBooNE experiment at the Department of Energy's Fermilab reported a breakthrough: They were able to identify exactly-known-energy muon neutrinos hitting the atoms at the heart of their particle detector. The result eliminates a major source of uncertainty when testing theoretical models of neutrino interactions and neutrino oscillations.
Like other muon neutrino experiments, MiniBooNE uses a beam that comprises muon neutrinos with a range of energies. Since neutrinos have no electric charge, scientists have no "filter" that allows them to select neutrinos with a specific energy.
The MiniBooNE result was published in the April 6, 2018, issue of Physical Review Letters. This research was supported by the U.S. Department of Energy Office of Science.
On April 27, Fermilab broke ground on the building that will house the future Short-Baseline Near Detector.
The particle detector, SBND, is one of three that, together, scientists will use to search for the sterile neutrino, a hypothesized particle whose existence, if confirmed, could not only help us better understand the types of neutrino we already know about, but also provide clues about how the universe formed.
Members of the Fermilab Neutrino and Particle Physics divisions, working together with international collaborators, are currently refining the design of the detector itself. It will take about eight months to complete the SBND building.
The three detectors make up the laboratory's Short-Baseline Neutrino Program, which will use a powerful neutrino beam generated by the Fermilab accelerator complex. The beam will pass first through SBND and then through the MicroBooNE detector, which is already installed and taking data, having observed its first neutrino interactions in October. Finally, the beam will travel through ICARUS, the largest of the three detectors. ICARUS, which was used in a previous experiment at the Italian Gran Sasso laboratory, is currently at the CERN laboratory in Switzerland receiving upgrades before its big move to Fermilab in 2017.
The beam coming out of the accelerator comprises primarily muon neutrinos; the detectors will measure their transformation into electron neutrinos.
All three detectors have specific functions in detecting the transformation. As the detector closest to the beam source, SBND will take an initial measurement of the beam's composition – how much the beam contains each of the different neutrino types.
If there are more electron neutrinos than predicted, then muon neutrinos may have oscillated first into sterile neutrinos and then to electron neutrinos. If the data show a smaller number of muon neutrinos than predicted, the muon neutrinos may have transformed only into sterile neutrinos, which cannot be seen in the far detectors.
Scientists first picked up on experimental hints of a sterile neutrino at Los Alamos National Laboratory's LSND experiment in 1995. When the Fermilab experiment MiniBooNE followed up, scientists could not confirm the sterile neutrino's existence, but neither could they rule it out.
Part of the sensitivity of SBND lies in its liquid-argon time projection chamber, the active part of the detector, which will contain 112 tons of liquid argon. Neutrinos will interact with the nuclei of the argon atoms, and scientists on SBND will study the resulting particles to better understand the neutrinos that caused the interaction. Their findings will likely have application in future accelerator-based neutrino programs, such as the international Deep Underground Neutrino Experiment hosted by Fermilab.
The Short-Baseline Neutrino Program will begin taking data in 2018.
On Aug. 6, MicroBooNE , a liquid-argon time projection chamber, or LArTPC, recorded images of the tracks of cosmic muons, particles that shower down on Earth when cosmic rays collide with nuclei in our atmosphere.
Fermilab's flagship effort is its neutrino program, which is ramping up to be the strongest in the world. This means creating the world's best neutrino detectors. To that end, scientists at Fermilab are pursuing one hot technology that is lighting up neutrino physics, detection based on cryogenic liquid argon.
At first, argon seems to be a pretty boring element. As a noble gas, it does not react chemically. Making up one percent of our atmosphere, it is its third most common component, surpassed only by nitrogen and oxygen. But don't let its mundane properties fool you. When we cool it down to extremely cold temperatures, it turns into a liquid with incredible properties for cutting-edge neutrino detectors.
For particle physics, perhaps liquid argon's most important feature is that it acts as both a target and detector for neutrinos, although it isn't the only material that can be used this way. The Super-Kamiokande experiment in Japan used water stored in a deep-underground tank as large as Wilson Hall to detect neutrinos. Here at Fermilab, the MiniBooNE experiment used a giant sphere of oil that operated much the same way as Super-Kamiokande's tank.
But with 40 protons and neutrons, liquid argon is denser than water or oil, so liquid-argon detectors see more neutrino collisions per unit volume than their oil- or water-based predecessors. That means faster measurements and consequently faster discoveries.
Another advantage of liquid argon is that, when a neutrino interacts with it and subsequently generates charged particles, it produces two separate kinds of signals; oil- or water-based detectors produce only one. One type of signal, unique to liquid argon, results from its ability to record the charged particles' trajectories.
Charged particles are created in the liquid argon after a neutrino flies in and collides with an argon nucleus. The charged debris travels through the argon and easily knocks off electrons from the neighboring atoms along its path. The electronic traces in the liquid argon are pushed by an applied electric field toward an array of wires (similar to a guitar's) on the side of the detector. The wires collect data on the particle trajectories, producing a signal.
The second signal type is one shared with oil- and water-based detection: a flash of light. When a charged particle bumps into an argon atom's electron, the electron transitions to a higher energy. As the electron transitions back to its original state, the excess energy is emitted as light.
It turns out that argon is also relatively cheap. Companies liquefy air and heat it slowly. Since each of air's components has a unique boiling temperature, they can be separated. The boiled-off argon is moved to a separate chamber where it is again condensed. The commercially available liquid argon that we buy is still not pure enough for our experiments, so once the liquid argon arrives at the lab, we filter out the remaining impurities by a factor of 10,000.
Using a common and innocuous gas, Fermilab is establishing itself to be the world's premier neutrino physics research center. Stay tuned to discover what secrets this technology will unlock!


What is Citizen Science and PPSR?
The growing field of public participation in scientific research (PPSR) includes citizen science, volunteer monitoring, and other forms of organized research in which members of the public engage in the process of scientific investigations: asking questions, collecting data, and/or interpreting results.
degree of training in project procedures to ensure consistency in data collection and accuracy in data analysis. Current projects cover a breadth of scientific content ranging from aquatic invasive species to native bees, from pollen to stardust, and from urban birds to arctic glaciers. Projects may engage a handful of participants in a small watershed or many thousands of observers located across several continents.
PPSR projects have goals for science—for example, to document changes in populations of plants or animals or variations in the quality of air or water—and/or goals for learning, for instance, to improve participant understanding of scientific content or capacity for addressing scientific issues. Many projects also have goals for actions based on resulting scientific outcomes and/or learning. Over the past few years several models for PPSR have been developed to meet varied goals. All models share the same basic strategy, however, in which volunteers collect and share data that can be analyzed by scientists, project participants, or both.
participants also have been published. Numerous publications document action outcomes as well, and offer strategies for linking research findings with management and decision making in different contexts.


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Who Won Eurovision 2018 Contest?
news 2 months ago Newsweek
Who Won Eurovision 2018 Contest? Everything to Know About Israeli Singer Netta Barzilai
The first semi-final of Eurovision 2019 is slated to air on YouTube on Tuesday night, putting a few lucky countries one step forward toward taking the trophy from 2018's winner, Israeli singer Netta Barzilai.
The 26-year-old won the trophy by gaining 529 points for Israel during last year's competition with her animated performance of "Toy," which later hit Billboard's Dance Club Songs chart in August 2018. The winning country was followed behind by Cyrpus, who gained 436 points in the song competition, and third place winner, Austria, with 342 points.
The success of her song through Eurovision launched Barzilai to instant super-stardom and has since resulted in two more singles from the singer, "Bassa Sababa," released in February, and "Nana Banana," which dropped on Friday. The catchy dance track centers is an ode to Barzilai living her best life and doing whatever she wants with her newfound fame. Although it is her third song overall, the "Nana Banana" marks her second English-speaking single since the release of "Toy."
Noam Galai/Getty Images
"I had an amazing year and I feel that everyone is trying to sum it up," Barzilai told Jerusalem Post on Friday. "'Nana Banana' is my personal summary, and I think that I want to take you into my bubble, to my most personal place over the past year."
While it's unclear if fans will hear "Nana Banana" or another one of Barzilai's songs during the first round of Eurovision's semi-final competition on Tuesday, she is expected to take the stage at during the competition, just ahead of a performance by Madonna.
The 64th annual Eurovision competition—hosted by model Bar Refaeli, Erez Tal, Assi Azar and Lucy Ayoub—will air live from Expo Tel Aviv in Isreal on Tuesday night at 9 p.m. local time. Forty-one countries will go head-to-head in the song competition, however, only 17 will battle it out on stage on Tuesday.
China Censored Eurovision LGBT Performances. The Song Festival Fought Back
Eurovision 2018: Where to Watch in the U.S., How Does Voting Work and Why Is Australia There?
Eurovision 2017: What Is Making Europe's Annual Song Contest So Political?

redpajama_set_name: RedPajamaCommonCrawl


I'll never forget my first day in our family business when I had completed my morning shift and took a break for lunch. The warehouse manager asked me if my father was going to take me out for the customary steak lunch for all new hires. I went upstairs, walked into my father's office and told him I was ready to go for my steak lunch. He looked at me with a confused stare and told me he never takes a new employee out for lunch on the first day. His confused stare was only matched by the laughter of the warehouse manager when I returned to my post after lunch. I realized I had been hazed by the warehouse manager as part of the ritual for new employees.
What job positions do family members assume when they first enter the family business?
As family business entrepreneurs, we often tend to manage by hunch, figuring things out as we go along, especially in the earlier startup years. Many of the issues we face as our businesses grow; we plod through, without much advice from outside advisors. Surprisingly, most of the time it works out well. For our family business, this time it didn't.
We had been in business for about 15 years, and our compensation plan was pretty basic; salary plus a holiday bonus. The bonus was pretty much automatic. One year we decided to revise the bonus portion, realizing that as longer-term employees' compounded wages increased, it was increasing the bonus portion disproportionately. We decided to cap the bonus for the highest paid managers.
One of our long-term managers became upset with the new bonus program and decided to leave the company.


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Kraków in the Board of Directors of the League of Historical Cities!
On November 14–16, 2022, the Korean City of Andong hosted the 18th edition of the World Conference of the Historical Cities, devoted to the topic: 'Future-Oriented Historical City Based on Community'. Kraków was represented by Katarzyna Piotrowska, Deputy Director of the Department of Culture and National Heritage. During the Conference, the Mayor of Kraków, Jacek Majchrowski, was elected to the Board of Directors of the League of Historical Cities for the 2022–2026 term.
Photo Liga Miast Historycznych
Along with Kraków Mayor, the Board includes presidents of the following cities: Gyeongju, Konya, Ljubljana, Shiraz, Bad Ischl, and Xi'an.
Traditionally, at the end of the Conference, its participants adopted a document entitled Declaration of Peace and Solidarity, which is the current message that the League of Historical Cities sends to the world as an appeal for peace and cooperation.
The text of this document declares,: 'Every historical city in the world has developed over centuries through the efforts of its inhabitants trying to cherish their unique traditions and culture. These precious resources must be passed on to future generations. The League of Historical Cities was founded to promote world peace, which is fundamental to the preservation and development of historical cities, and is the desire of all mankind. For cities that share the common bond of being a historical city, the League serves as a platform to promote cooperation and build the foundations of solidarity. We have had many vital discussions amongst us. We have developed our friendship and tried to solve social problems. However, conflicts between nations due to racial, ethnic, cultural and religious differences continue. With the most profound regret, we admit that many lives have been lost due to warfare and that historical heritage – a universal value for humanity – is being destroyed in various parts of the world. Any conflict should be resolved peacefully, for example through dialogue and not by military action. At a time when the international community is increasingly divided, we hereby declare and reaffirm our solidarity based on a special bond and cooperation. In addition, we hereby commit ourselves to take action to enhance mutual understanding through exchanges and dialogue between cities and their citizens. We want to show the world the importance of dialogue in solving problems and support and encourage historical cities and their inhabitants suffering from conflicts.'
The League of Historical Cities was established by the participants of the 4th World Conference of Historical Cities in Kyoto in 1994. Kraków also found itself among the 25 founders of the League. The League, based in Kyoto, Japan, currently brings together 129 cities worldwide.
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News author: Małgorzata Rajwa
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MICE summary of 2022 – part III
MICE summary of 2022 – part II
Welcome to the MICE summary of the year 2022!
Kraków Medical Tourism Seminar 2022 is behind us
Participants of the Meet The Bidder industry trade fair visit Kraków
Kraków councillors decide to set up a local tourist organisation
Kraków's conference offer at trade fairs and events
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Home > Specialties > Batteries, Hearing Aid
Definition : Batteries designed for use in nonimplantable hearing aids such as those placed on the external auditory canal. These batteries usually consist of a high-capacity low-weight cell (e.g., zinc-air); they should have a low cost and support immediate and continuous use.
Entry Terms : "Hearing Aid Batteries"
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Apothecary Products Inc
Apothecary Products, Inc. is a leading pharmacy supplier in the United States and International markets.
Avex Electronics
Avex Electronics Corp. was formed in 1976. The company operates from its manufacturing facility in Bensalem, PA. From the beginning Avex has designed and manufactured Battery Packs and Oscilloscope Probes for sale to both the United States Government and commercial markets.
Battery Clinic Inc
Battery Clinic, Inc. provides Replacement, OEM, and Custom batteries and battery packs for most every portable power need.
Hal-Hen Co Inc
The Hal-Hen Company is dedicated to providing the most complete line of Hearing Healthcare Accessories and the finest service in our industry.
Hearing Help Express Inc
For more than 31 years, our family has provided quality hearing aids by mail to over 600,000 satisfied customers. Your satisfaction is assured when you order a hearing aid from Hearing Help Express. In fact, recent independent surveys of the hearing aid industry support that conclusion. (The majority of direct-by-mail respondents purchased hearing aids from our family.)
Interstate Batteries sells over 16,000 different kinds of batteries—from AA alkalines to critical power solutions, and everything in between.
JASCO Battery Specialists Inc
JASCO Battery Specialists, Inc. came from humble beginnings; a few dollars of my own, a few more dollars from a brother-in-law, a few things that I learned from my father "work hard, be honest and don't throw good money after bad" and a dream.
Lynn Medical Co
Lynn Medical is a leader in diagnostic supplies and equipment for Cardiology and Imaging procedures.
MicroTech Hearing Technologies
MicroTech is a company designed to personally know our customers' goals and market needs. As one of the most reliable American companies in the industry, we are committed to serving our customers better than anyone else.
NCE Battery
Originating in 1968, National Creative Enterprises is a manufacturer and distributor of battery packs and batteries for hospital and medical equipment and two-way communication applications.
Persona Medical
Persona is the oldest custom manufacturer in the Unites States, and one of the largest high end independent hearing aid laboratories. Over four decades of experience has helped us to remain on the cutting edge with advanced innovations yet to be developed by any other company. From SpeechPro, the World's first automated real ear fitting system, to VCOM the world's first voice recognition programming.
Preferred Products
Home of the Hotchkiss Otoscope and other fine medical instruments. Our products cover a wide range of instruments for Otolaryngology, Head & Neck surgery, Rhinoplastic surgery, Audiology, Hyperbaric medicine, Emergency medicine and Pediatrics.
R & D Batteries Inc
R&D Batteries, a multi-million dollar corporation, is a battery assembler and distributor representing some of the world's premier manufacturers. We focus primarily on the engineering, testing, manufacturing and distribution of replacement batteries used in medical equipment.
Starkey Hearing Technologies
As a Starkey Hearing Technologies' brand, Starkey is much more than the hearing aids we produce. Starkey is an experience. One that doesn't merely promise more, but delivers more: more communication, more participation, and more opportunities to do what you love to do.
Unipower Corp
UNIPOWER is headquartered in Coral Springs, Florida with operations in Brookfield, Connecticut, the UK and China. Headquarters houses a factory dedicated to low volume production of industrial products and telecom/network systems integration. The Connecticut facility is dedicated to the production of our Military and High-Voltage product lines. The U.K. operation includes Sales and Customer Support functions for European customers as well as an integration center for close customer support. High-volume manufacturing is done in our dedicated operation in GuangDong, China.
Westone Laboratories Inc
Westone is known throughout the world for providing quality products and services that enhance and protect the hearing experience, contribute to the effectiveness of hearing healthcare professionals and support innovation in the hearing healthcare industry.Our precise, custom-fit hearing instrument earpieces provide comfortable and highly effective sound transmission to the ear for a multitude of applications.
Williams Sound LLC
Williams Sound, LLC, is a privately held, U.S. company located in Eden Prairie, Minn., a suburb of Minneapolis / St. Paul. The company was founded in 1976. We manufacture many of our products in our Eden Prairie plant and supplement our U.S. production with local sub-contractors and overseas partners. We also distribute select products from reputable suppliers that complement our own products, and we import carefully qualified accessory items such as earphones, headphones, and microphones.


I am a Music Producers, vocalist, and guitarist for Hire. Recording and session writing are just some of the expertise I offer. I am experienced in a variety of music genres and can provide a keen sense of style and insight to produce a unique product.
With more than 15 years experience in audio mixing and mastering, we are confident to help you to further enhanced your song and make it commercially viable for the music market. We are also experienced in song composing and arrangement, film scoring, voice-over and EDM.


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Mead Johnson to Present at the Morgan Stanley Global Consumer & Retail Conference
GLENVIEW, Ill.--(BUSINESS WIRE)--Nov. 11, 2016-- Mead Johnson Nutrition Company (NYSE: MJN) announced today that it will present at the Morgan Stanley Global Consumer & Retail Conference in New York, New York on Tuesday, November 15, 2016. Speaking on behalf of the company will be Kasper Jakobsen, President and Chief Executive Officer. The presentation will begin at 9:20 a.m. ET and will be broadcast live over the Internet. To access the live webcast or a replay of the event, visit the Investor section of the Mead Johnson website at http://investors.meadjohnson.com. A replay of the event will be available approximately two hours after the conclusion of the webcast.
About Mead Johnson
Mead Johnson, a global leader in pediatric nutrition, develops, manufactures, markets and distributes more than 70 products in over 50 countries worldwide. The company's mission is to nourish the world's children for the best start in life. The Mead Johnson name has been associated with science-based pediatric nutrition products for over 100 years. The company's "Enfa" family of brands, including Enfamil® infant formula, is the world's leading brand franchise in pediatric nutrition. For more information, visit meadjohnson.com.
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My mom had to put her baby and my first pet and canine friend, Mercedes to sleep yesterday. She was 14 years old. She was fine one day and very sick the next. Turns out she had cancer / tumor in her heart and it was filling it with blood, causing her great pain. While they could have done surgery and drained the blood, it would keep filling up every few hours. Mercedes was a Bichon and was a very gentle, sweet, loving girl. One of my favorite things about Mercedes is how she would try and 'trick' you into giving her treats by pretending to use the bathroom. She would look at you like look I did my duty, where is my reward and even though you knew she was faking, you gave her a treat just for being too darn cute. She taught me how special our animal friends are and how priveledged we are to know and care for them even though their time here seems all too fleeting. That's probably cause God misses them so. We knew this day would come as she was getting on in years, but it's just so painful. Please say a prayer for my mom as she is having an extremely difficult time right now and feels very guilty. Even though I try to console her and let her know she made the best decision she could, I'm afraid it doesn't ease her pain. The wounds are still new as this was only yesterday, so I know in time things will get better. I just wanted to give a litle tribute to Mercedes. God has received a very special girl and I know he is loving her with all his might right now. Until we meet again, sweet one.......I love you.
What a beautiful tribute to Mercedes. I am so sorry for your loss, your Mom and your family will be in my thoughts and prayers.
Play hard at the bridge little Mercedes. RIP.
No more pain now, sweet Mercedes. Enjoy your renewed health at the Bridge.
CatMama78--You and your Mom are in my prayers.
RIP sweet Mercedes.... play hard!
I'm so sorry for the loss of Mercedes. :( She's in a better place now running free from pain. My condolances to you and your Mother.
So sorry about Mercedes. You and your mom will be in my thoughts and prayers.
I am so sorry for your great loss of Mercedes. Run free and healthy at RB now. What a beautiful tribute.
Oh how wonderful & sweet Mercedes sounded. I can feel your moms pain. We miss them so much when they leave us. I will be keeping her in my prayers.


text:
Mogalakwena Reserves
Researchers, students, and interns
Internship structure
Funky stools made from eco-bricks
eco-stools in the making
funky designs
an ongoing project
eco-club classroom
decorating two of their stools
"I've truly loved working on this project"
Modikwa Eco-Club's Eco-brick project
By Hannah Dyke
Portia Phokela, the Mogalakwena Research Assistant, has been running a recycling project with Modikwa primary school Eco-Club. Portia has been teaching the children about recycling, by collecting plastic bottles and filling them with plastic waste to create eco-bricks. After the children's hard work, we wanted to build something from the bricks, to show the club what they achieved. All we had to do now was think of what to build!
Portia's eco-club takes place in the school playground, under the shade of an umbrella thorn. The children normally sit on the floor or take chairs from their classrooms. We thought it would be lovely to build seating under the tree, to create a permanent eco-club classroom. Enabling a designated area for their environmental education, made from recycled material and therefore, reflecting the clubs' environmental values. From this we brainstormed and researched various building techniques. We needed a design that was simple and could be easily replicated. The ability to replicate the building was crucial as Portia intends to keep this project ongoing by continuing to collect eco-bricks with the children. This project extends the children's education in recycling, further reduces waste in the community and creates more seating for the eco-club classroom. Taking all of this into consideration, we created our own eco-stool design. All we needed was an old bucket, cement, a little string and our trusty eco-bricks.
Portia and I made a total of 8 stools, which we took to the school on the 28th of February. The eco-club children were very excited to see that their hard work had been made into something colourful and useful. We spent the afternoon with the children, having fun painting a couple of the stools.
I've truly loved working on this project. My two favourite events being collecting waste with the children, them of course showing me all the tips and tricks to make the best eco-brick. Then, watching the students decorate two of their stools. They carefully selected the colours and shared round the paint brushes, to make the stools truly their own. I'm thrilled that Portia will continue the project and excited to see what else they build with the eco-bricks.
What is a better introduction to science than a Nature Treasure Hunt?
Eco-Club learners and the MRC students in front of the Eco Centre
The dragonfly team seems small when compared to the giraffe skeleton
The hornbill team counting the legs of a woodlouse
Lizard team: "How is the game? Very nice!"
Wildebeest team: "Shall we run? Yes let's run!"
"Where are the crocodiles?"
Modikwa Eco-Club's visit to Mogalakwena Research Centre
By Estelle Leroux
Our research assistant, Portia Phokela, is eco-mentor of the Eco-Club of the Modikwa primary school in Simson. Eco-clubs are part of the Children in the Wilderness program which offers learners with an interest in nature and the environment the opportunity to interact and learn about environmental issues and sustainable living. Usually Portia visits the school, but this time the learners of the Eco-Club were invited to visit the Mogalakwena Research Centre (MRC) to take part in a very exciting Nature Treasure Hunt. The treasure hunt was organised by the eco-mentors and the students of the Research Centre. Divided in four teams, each team had to find clues based on descriptions of animals and trees.
With the use of a treasure map, the learners practised to navigate by finding landmarks and eventually the treasure. During the hunt, the Eco-Club learners were introduced to the reserve and to the various research projects undertaken by the Research Centre. They were demonstrated how to test the learning ability of vervet monkeys, explored what animals use a baobab tree for shelter and they used the binoculars to find crocodiles ("kwena" in Northern Sotho) in the river. By using a microscope, the learners were able to examine familiar insects like they had never seen them before. They also discovered that a scorpion turns fluorescent purple when lit with a UV light and they were very impressed by the size of the giraffe and the length of the snake skeleton at the Eco-Centre. While finding the one clue after the other clue, we saw other animals like: nyalas, impalas, warthogs and vervet monkeys.
The treasure hunt was a very fun afternoon, filled with facts about the different species studied at Mogalakwena. The MRC students gained experience in presenting their research projects and the Eco-Club learners gained insight in the research that is being done 'at their neighbours': a wonderful educational experience for all parties involved. We finished the afternoon with snacks, games and lots of dancing.