Every year, we are delighted to award our students for their hard work in the department.
Recipients of the awards are announced at the annual Honors Convocation in April and celebrated at a departmental award ceremony.
The Roger Rietberg Chapel Choir Award was created by members, alumni and friends of the Hope College Choir to honor Roger Rietberg. The recipient must be a senior and have been a member of the choir for at least two years. The recipient must exemplify commitment and dedication, a love for the musical mission of the choir and a spirit that has proved to be an example for the other members. He or she should carry an attitude of concern for all the members of the choir and should be looked at with respect as a leader and a friend.
This award recognizes seniors who have been active participants in Chapel Choir for three years or more. These members have demonstrated leadership and commitment to the ensemble.
The Wind Ensemble Achievement Award is given to a senior music major who has participated in Wind Ensemble for at least three years. In addition to being an outstanding performer, the student also demonstrates a willingness to go above and beyond the call of duty in assisting the ensemble.
The Jazz Studies Area awards a prize consisting two books, Reading Jazz and Thinking in Jazz, to the student that has developed the most as a jazz musician and has demonstrated leadership among his or her peers.
The Mabel Nienhuis Award in Applied Music is given to three music majors who at the close of their freshman year receive the highest rating in their jury examinations. One award each will be given in the areas of keyboard, voice and instrumental music to be used for the applied music fees of the sophomore year.
A scholarship established by Herman and Elizabeth Ritsema in honor of their sons, Herb, Harold and Dan, who were music majors at Hope College. Preference will be given to returning Hope students who play brass or woodwind instruments and who are active in one of Hope's performing ensembles.
This fund provides piano scholarships in the Department of Music for deserving students. Funded by friends and family in loving memory of Donald Weener.
This fund provides piano scholarships in the Department of Music to students who are deserving on the basis of achievement and financial need. Funded by friends and family in loving memory of Eleanor J. Palma, adjunct assistant professor of music.
This fund provides piano awards in the Department of Music to students who are deserving on the basis of talent, achievement and financial need. Funded by friends in loving memory of Jean A. Palmer, a friend of the music department.
A fund contributed in memory of Miss Claryce Rozeboom, a member of the Class of 1953, the Claryce Rozeboom Memorial Scholarship in Organ is awarded to a member of the junior or senior class who, in the opinion of the music faculty, best qualifies on the basis of talent and financial need.
The Roossien Award was established by David P. Roossien of Holland, Michigan, to recognize an organ student who, in the opinion of the organ faculty, has demonstrated outstanding improvement, and a commitment to further studies in the field of traditional church music.
The Marie Blauwkamp Award was established by Marie Blauwkamp of Zeeland, Michigan, to recognize an organ student who, in the opinion of the organ faculty, has demonstrated outstanding commitment to further studies in the field of traditional church music.
Awarded by the music department to the junior or senior who is a music major and has spent at least one year of resident study in the music department. The award is given to the junior or senior who, in the judgment of the department, best qualifies on the basis of talent and potentialities.
An award given each year to the sophomore music student who, in the opinion of the music faculty, has proved most worthy in terms of his or her academic record and superior work in the study of voice.
The Joyce M. Morrison Scholarship is presented annually to the most promising freshman vocalist who has expressed an intention to pursue a career in classical voice, as determined by the chairperson of the voice division of the Department of Music.
An award given to a music major in the senior class who, in the judgment of the music faculty, has demonstrated unusual interest and achievement, and has contributed significantly to the music program. Established by Robert W. Cavanaugh's family, former students and friends in recognition of his contribution to the Department of Music of Hope College and his Christian commitment.
The Music Education Achievement Award is given to a senior music education major who has demonstrated excellence in academic, musical and teaching achievement, as well as in professional dispositions and behavior. In addition, the recipient has made a significant contribution to the music education program, through exceptional dedication, creativity and collegiality.
The Anthony Kooiker Senior Seminar Award was established in 1999 in Honor of Dr. Anthony Kooiker, former chair of the department and now professor emeritus of music. Professor Kooiker played an important role in the formation of the senior seminar course, and taught it for many years. The award is made to that student who, in the opinion of the faculty, made the most serious contribution to the course, especially as evidenced in the final research paper.


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Check Childish Gambino, Ariana Grande and Tame Impala from Your Couch This Weekend
You can skip the heat, dust and sweaty crowds and livestream Coachella's top music performances on YouTube instead.
Tiarra Mukherjee Apr 12, 2019 2:01PM ET
Festivalgoers during the 2018 Coachella Valley Music And Arts Festival at the Empire Polo Field on April 21, 2018 in Indio, California. Photo Credit: Rich Fury/Getty Images for Coachella
Coachella kicks off festival season this weekend with art, fashion and a hugely anticipated musical line-up that will play over the course of two weekends (April 12-14 and April 19-21), including headliners Childish Gambino, Tame Impala, and Ariana Grande. But if you don't have the time or budget to slip away to Palm Desert to catch your favorite acts live, you can watch them (sans blazing temps and throngs of screaming fans) on the festival's YouTube Channel, reports the Los Angeles Times.
The first livestream starts tonight (April 12) at 7 p.m. ET and runs through Sunday with a bonus one-time premiere of "Guava Island," the new film from Childish Gambino and Rihanna. There are 82 acts slated to stream across three feeds over the course of the weekend, with performances taking place simultaneously (the page features a scheduling tool that automatically changes the stream when the group you want to see takes the stage).
This year is the first time that the stream will also run on the second weekend, with curated content from various tents throughout the venue, according to The Times. See the full lineup and stream your favorite acts here.
Tame Implala

redpajama_set_name: RedPajamaCommonCrawl


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Her Sister's Sin est un film muet américain réalisé par Francis Ford et sorti en 1916.

Synopsis

Fiche technique
 Réalisation : Francis Ford
 Scénario : Grace Cunard
 Durée : 10 minutes
 Date de sortie :  :

Distribution
 Francis Ford
 Grace Cunard

Liens externes

Film américain sorti en 1916
Court métrage américain
Film muet américain
Film américain en noir et blanc
Film dramatique américain

redpajama_set_name: RedPajamaWikipedia


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Libations by the River
Saturday, Sep 24, 2022 @ 2:00 pm - 6:00 pm
| $5 – $20
An incredible afternoon celebrating craft beers, cocktails, and wine along Riverwalk Fort Lauderdale. Food Trucks, Specialty Vendors, and Music.
Gold Lyon Vintage Pub Fish'n'Chips Friday Night Special!
Friday, Jan 27, 2023 @ 5:00 pm - 9:00 pm Recurring Event
Bottomless Brunch Pitchers at Cuba Libre!
Saturday, Jan 28, 2023 @ 11:00 am - 4:00 pm
Happy Hips: Hip-Opening Workshop
Saturday, Jan 28, 2023 @ 2:00 pm - 4:00 pm
Sip & Shop to benefit The Pantry of Broward
New Moon and Full Moon Meditation Series
Saturday, Sep 24, 2022
City of Fort Lauderdale, Las Olas Events
https://tinyurl.com/RWLibations
Esplanade Park
400 SW 2nd Street
Fort Lauderdale, FL 33312 United States + Google Map


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How women helped build the internet, and why it matters
By Adi Robertson@thedextriarchy Mar 5, 2018, 12:38pm EST
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Graphic by James Bareham / The Verge
There are a couple of omnipresent narratives for the history of women in tech. One is simplistic and linear: men built computers and the internet, and now women are struggling to break in. A more nuanced version includes pioneers like Ada Lovelace and Grace Hopper, who helped invent programming as we know it, or NASA's "human computers," highlighted in the 2016 film Hidden Figures. But that narrative consigns women's influence to the very beginning of computing history, dramatically contrasting them with today's male-dominated Silicon Valley.
Broad Band: The Untold Story of the Women Who Made the Internet, a new book from journalist and musician Claire L. Evans, offers a rougher and more complicated version of the past. Broad Band profiles some familiar figures, including Lovelace and Hopper, but it quickly jumps into fascinating lesser-known projects. One section covers 1970s Bay Area digital bulletin board project Resource One, led by Berkeley computer science dropout Pam Hardt-English. Another focuses on Dame Wendy Hall's role in developing hypertext, just before the dawn of the World Wide Web. At the turn of the millennium, there was Jaime Levy, a groundbreaking digital media creator and the self-styled "biggest bitch in Silicon Alley."
Some of these women's projects look like dead-end paths in retrospect; Hall's hypermedia system Microcosm, for instance, was steamrolled by the web. But Broad Band illustrates how they prefigured our modern internet — and, just as importantly, which ideas were lost along the way. I spoke to Evans about the process of writing Broad Band, the value of data preservation, and her book's original, unpublishable title.
This interview has been condensed and lightly edited for clarity.
Which chapter of Broad Band did you write first?
I think actually some of the chapters I wrote earliest ended up getting cut. But the chapters I wrote first that are in the book, probably the Ada Lovelace chapter came first, which is uncharacteristically chronological for me.
Also, it seems like you had closer connections to a lot of the other chapters.
I had the great fortune of actually getting to talk to and hang out with and visit with a lot of people in the later chapters, as opposed to the people like Ada Lovelace and Grace Hopper, who are unfortunately long past. So yeah, I think that material felt more dynamic to me because I think of these people a living, breathing, active human beings who I can ask all kinds of personal questions.
You mentioned a three-page pitch you'd held onto for a long time. I'm wondering if it was for this concept or another idea that evolved.
No, it was very different. It had a completely unsaleable title, it was called We Are the Future Cunt. So as you can imagine, the book kind of generalized and broadened and became a bit more accessible and more wide-ranging. But it always kind of felt like an inevitability that I would write this book or a book like it. I grew up online and my father worked for Intel, and we had computers in the home for as long as I can remember, and I never felt when I was a kid that computers were for boys or for girls. I just saw my computer as a portal to the world.
"Those were the years that I was sort of coming of age online, and I had totally missed it."
Broad Band itself came out of a series of articles that I wrote for Motherboard a few years ago about cyberfeminism — hence the We Are the Future Cunt, because that's a line from the Cyberfeminist Manifesto for the 21st Century, a really amazing document created by a group of artists from the '90s. I was so enamored by the idea that there had been this wave of exciting dynamic, colorful, and funny feminism in the '90s because those were the years that I was sort of coming of age online, and I had totally missed it.
What other stories were there that had been there all along that could sort of relate to my experience as a woman online, and as a writer online, and as a "net native" type of person?
How did you decide when to stop, chronologically?
There was something satisfying to me about ending with the popping of the dot-com bubble. The more contemporary internet history — the stuff that we're living in now — I feel like I'm just too close to it to really historicize it. But the period of time up until my earliest years online, I guess, is something that's separate enough from my own experience that I can sort of look at it in a semi-impartial way.
But also, I think when the dot-com bubble collapsed, so collapsed with it a lot of the more idealistic illusions that people had about what the internet and what the web would be. It sort of feels like the beginning of the next chapter, and we're still living in that chapter now.
It's funny how much this book reminded me of Halt and Catch Fire.
Yes! Oh my god. One of my great regrets about the timing of me writing this book is that Halt and Catch Fire is over now, and I can't con my way into a consulting job on that show. It was so fun being deep in the process of researching arcana and internet history and then seeing these little nuggets appear in a more glamorous form on my favorite TV show. It kind of felt surreal. But definitely made me feel like I was headed in the right direction.
Even beyond being about old technology, it had that feeling of being kind of futile but not hopeless. You understand that a lot of these people didn't make it into the history books, but it's still not discouraging.
Futile but not hopeless — that's a nice way of putting it. I think one of the things that really knocked me out learning about this history, is just the way it's rewritten my conception of how the internet is and how it could be different.
"There's nothing inevitable about the way the internet is."
I think it's easy to feel locked into the way things are, but the more you get into the material and the messiness of the real lived experience of all these people, the more you realize that if things had unfolded even slightly differently, we could be living in a totally different world. There's nothing inevitable about the way the internet is.
One of the major examples of that is hypertext. There was this going wisdom in hypertext design before the web — which had a preponderance of women in it — that links have to go in two directions. It's just a totally different way of thinking about how we connect information. If we lived in a world where links went both ways, who knows where we'd be? It's so mind-blowing to think of the many parallel universes that these stories open up.
Preservation is also a huge unspoken part of this book.
Yeah, totally. Especially for the web chapters. Some of that stuff, just by the nature of the medium, is constantly erasing itself. I'm the world's biggest admirer of the Internet Archive because that material would have been impossible to access without it. It's so important to me to kind of get a little bit of this stuff down on paper before we lose it on pixel, so to speak.
There are cases where important female co-founders get written out of stories by journalists, like Jessica Curry from The Chinese Room. Did you find specific cases of that?
This is something I've been thinking about a lot because my interest in writing these stories isn't so much about parading specific women around as splendid exceptions — in the way that Ada Lovelace and Grace Hopper have already kind of been talked about for a long time.
"I don't think that the alternative to great man history is necessarily great woman history."
I don't think that the alternative to great man history is necessarily great woman history. There are characters in this book that brought us "firsts," although I think firsts are contestable in computing history. But there are also a lot of characters who just happen to be doing interesting stuff in tech and with computers at particularly relevant times and places, and getting to understand those experiences gives us a richer understanding of those times.
It's not as useful to me to think about Ada Lovelace as being the first programmer. I want to know about how she overcame her pain and her illness and her insane family, and I want to know that she failed — in that, you know, she lost the family jewels by betting on horse races, and that she kind of didn't love being a parent. I don't want blank heroes or necessarily straight-up attribution. I just want people, and I want to get at the complexity of real history.
How do you balance the idea that these women shaped the internet in a specific way, without saying that women are a certain way, or like, "if only women had designed the internet, there would be no internet war."
That's something I really tried to be mindful of. It's part of what pulled me away from talking more extensively about cyberfeminism because there was a lot of rhetoric that was oriented around this sort of embodied idea that women are naturals at the internet because women are naturally good at connection.
"There was a lot of rhetoric ... around this sort of embodied idea that women are naturals at the internet."
The book leans toward people who contributed to use-oriented applications of computing technology. And I don't ever want to imply that that is necessarily something that women are naturally good at, but I do think that's a space where there was more possibility of entry for women throughout computing history. That those contributions end up being the ones that have a big impact on our actual lived experience of what it is to use the internet is just a consequence of that.
Where do you feel like those spaces are now?
God, I don't know. I really don't know. I think that it's funny I started writing this book a little after as a way of trying to understand a path forward and trying to understand where a human women I might fit in in all of this in technology in a sort of general sense, and I don't know that I really answered that question.
But I think I'm excited and thrilled at the way in which the balance of power, at least in the realm of visibility and conversations, is changing a lot. I think the fight is just beginning, and it's so interesting to be there and see it. And I hope this book can be some form of ammo for those conversations. I think if we can reposition computing as something that women participated in actively and even developed and informed, then we sort of destabilize that sense of entitlement in male-dominated spheres of tech.
I truly, really, really hope that people don't look at this book and think, "Okay, we're done." There are so many stories that I couldn't include. There are so many more amazing women in this history. Maybe I'll do a sequel, I don't know. But I really want this to feel like the beginning and not the end.


Mold is a type of fungus that enjoys wide distribution. Like other fungi such as mushrooms and yeast, they derive their food from dead and decaying organic matter. They thrive in wet and damp conditions, growing on substrates of organic origin such as wood, leather and fabric.
Molds spread by growing a network of filaments called hyphae. When mature, they make spores and release them into the air. These spores germinate on wet surfaces to start a new colony of hyphae. Buildings affected by dampness offer ideal conditions for molds to grow. Unlike their counterparts found outdoors, those growing inside are considered toxic molds because they produce harmful substances called mycotoxins which cause symptoms of black mold exposure.
Allergic reactions are produced on exposure to spores of toxic molds. According to the Institute of Medicine, allergic rhinitis and sinusitis are the most common symptoms of black mold sickness. Some may develop dermatitis or skin rashes on contact with black mold particles. Even though people who have symptoms of chronic allergies are the most affected, repeated exposure to toxic mold is known to increase the sensitivity of others too.
Irritation?of the trigeminal nerve and the mucous membranes is another black mold symptom caused by volatile organic compounds (VOCs) produced by toxic black molds during their metabolic processes. The chemicals produced may vary depending on the type of metabolism (aerobic or anaerobic), and the substrate on which the black mold is growing. At lower concentrations they may cause low grade black mold exposure symptoms such as itching, burning, skin crawling sensations, and breathlessness. Higher levels of VOCs may result in more serious symptoms of black mold sickness such as headache, dizziness and disorientation. The characteristic odors of VOCs such as musty smells may cause digestive symptoms of black mold sickness such as nausea and vomiting in some people. They may worsen the symptoms of asthmatics too.
Infections are caused by a few toxic molds, usually in immunocompromised persons. Aspergillus fumigatus is a pathogenic mold causing infections in the lungs, eyes and the skin.
Toxicity of molds is due to mycotoxins produced as a survival mechanism against other competing molds and bacteria. Adverse growing conditions are known to trigger the production of these chemicals, which interfere with the synthesis of proteins, RNA and DNA of the cells, including those of humans and other animals. Exposure to mycotoxins in the spores of black mold may cause damage to the gastrointestinal tract and the respiratory system and produce a wide variety of black mold symptoms. They act as immunosuppressants and make people susceptible to a host of other infections as well.
Stachybotrys ? Commonly known as black mold, Stachybotrys produces a potent mycotoxin called trichothecenes, which cause headaches, flu-like symptoms, depression and fatigue. It has also been implicated in pulmonary hemorrhage in infants. Stachybotrys chartarum is notorious for killing off a large number of horses in Russia.
Aspergillus ? Aflatoxins produced by some species are highly toxic to the kidneys, liver, brain and heart. Aspergillus fumigatus causes a disease called Aspergillosis, which is infectious. ?Aspergillus niger?is another type of toxic black mold that can cause neurological symptoms similar to Stachybotrys.
Penicillium ? This toxic mold produces spores with highly concentrated nephrotoxins such as ochratoxin and citrinine that can cause kidney damage.
The amount of toxic molds in buildings and their toxicity cannot be determined accurately by analyzing samples from the site.
Symptoms of mold exposure vary as people react differently to toxic molds.
Mycotoxins are difficult to measure in the blood and their effects cannot be distinguished from those of other chemical contaminants.
Moisture problems in the building should be rectified immediately.
When the presence of black mold is seen in a building or occupants develop symptoms of black mold exposure, remediation measures should be initiated without delay.
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borazine structure and bonding
The interactions are not localized CrN bonds and the ring does not bind as a triamine ligand. The electronic structure of [Cr(η6-B3N3H6)(CO)3] has been investigated in detail using high quality density functional calculations. -Azaboraphenalene. )] and an Aromatic systems are usually 5- or 6-membered rings. …in an sp2 state of hybridization—that is, three electrons of the carbon atom occupy orbitals formed by the combination (hybridization) of three ordinary orbitals, one denoted s and two, p. All three orbitals lie in one plane; thus, the cationic centre of the molecule formed by bonding the carbon atom…, The discussion is not yet complete, however. Strictly speaking, Hückel's rules is derived from hydrocarbons, and the generalisation to other compounds is neither straight forward, nor necessary correct. ), carborazine (B Doiron, M.E. Da-Zhi Li, Lin-Yan Feng, Ling Pei, Li-Juan Zhang, Shu-Guo Wu, Hua-Jin Zhai. Borazine embedded cyclacenes-MINDO3 treatment. This suggests partial delocalisation of nitrogen lone-pair electrons. 3 A small ring current does suggest some delocalization. Simple On the electronic structure of benzene and borazine: an algebraic description. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 2 Smith, V. Hyna, H. Nöth. Basicity and ion-molecule reactions of trimethylarsine in the gas phase determined by ion cyclotron resonance spectroscopy. ) The six B-N bonds have length of 1.436 Å. The B~N~ ring in the free ligand is planar but upon complexation the ring puckers slightly. C By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Borazine is isostructural with benzene. Absorption Spectrum of the 2000 Å System of Borazine in the Gas Phase. Monatshefte für Chemie - Chemical Monthly. Presence of $(4n+2)$ electrons where $n$ can be $1, 2, 3, \dots$. The boron–nitrogen bond length is between that of the boron–nitrogen single bond with 0.151 nm and the boron–nitrogen double bond which is 0.131 nm. quantum chemical study. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. The boron–nitrogen bond length is between that of the boron–nitrogen single bond with 0.151 nm and the boron–nitrogen double bond which is 0.131 nm. Alright. Borazine hydrolyzes readily, yielding boric acid, ammonia, and hydrogen. 3 x. F. Cheng, B. Toury, S.J. Gas-Phase Ion Chemistry of Borazine, an Inorganic Analogue of Benzene. Find more information about Crossref citation counts. N The molecular structures of perfluorocyclobutane and perfluorocyclobutene, determined by electron diffraction. B(Br)NH Walter Siebert, Roland Full, Hans Schmidt, Joachim Von Seyerl, Mechthild Halstenberg, Gottfried Huttner. Theoretical study of the effects of substituents (F, Cl, Br, CH3, and CN) on the aromaticity of borazine. J. E. Macintyre, F. M. Daniel, V. M. Stirling. Borazine, also known as borazole, is a polar inorganic compound with the chemical formula B3H6N3. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. 3 Molecular structure of octadecahedral carboranes by gas-phase electron diffraction. High resolution Raman spectroscopy of gases with laser sources. reply from potential PhD advisor? Ammonia Borane and Related Compounds as Hydrogen Source Materials. Macbeath, T.B. Reactions of Organyl and Silyl Alanes with 1,3,4,5,6-Pentamethyl-2-aminoborazine. Compounds with aluminum and nitrogen atoms directly bonded to each other as part of an aromatic ring? Bauer, J.F. 1,2-Phosphaborines: Hybrid Inorganic/Organic P-B Analogues of Benzene. The electronic structures and energies of borazine… Benadir Anand, Heinrich Nöth, Holger Schwenk‐Kircher, Alexander Troll. Reliable Predictions of the Thermochemistry of Boron−Nitrogen Hydrogen Storage Compounds: BxNxHy, x = 2, 3. The electronic structures and energies of borazine, boronimide and dimeric boronimide. X Alessandro Soncini, Carmen Domene, Jeroen J. Engelberts, Patrick W. Fowler, Andr� Rassat, Joop H. van Lenthe, Remco W. A. Havenith, Leonardus W. Jenneskens. 2 Jonathan A. Bailey, Marten Ploeger, and Paul G. Pringle . Copyright © 1998 Published by Elsevier Ltd. https://doi.org/10.1016/S0277-5387(98)00008-4. For a student studying Chinese as a second language, is there any practical difference between the radicals 匚 and 匸? DeStefano and Richard F. Porter. X-ray crystallographic structural determinations show that the bond lengths within the borazine ring are all equivalent at 1.429 Å, a property shared by benzene. The crystal structure [5] of [Cr(t/%Et~B~ N3Et3)(CO)3] however reveals a number of differences between the structure of the borazine and arene com- plexes. How can I make the seasons change faster in order to shorten the length of a calendar year on it? You've supercharged your research process with ACS and Mendeley! H The structure of borazine is similar to that of benzene. Borazine is an inorganic compound with the chemical formula (B H) 3 (N H) 3. Borazine is a colourless liquid with an aromatic smell. Jin-Cong Zhuo,, Albert H. Soloway,, John C. Beeson,, Weihua Ji,, Beverly A. Barnum,, Feng-Guang Rong,, Werner Tjarks,, Glenn T. Jordan IV,, Jianping Liu, and. Deuteron Magnetic Resonance of Boron Deuterides. Heating borazine at 70 °C expels hydrogen with formation of polyborazylene: With hydrogen chloride it forms an adduct. Marija Baranac-Stojanović, Milovan Stojanović. [14][15], (C2H2B2N2) is a six-membered aromatic ring with two carbon atoms, two nitrogen atoms, and two boron atoms in opposing pairs.[16][17]. Probing the reactivity of pentaphenylborole with N–H, O–H, P–H, and S–H bonds. Complete assignment of the vibrational spectra of borazine: the inorganic benzene. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Synthesis of Silylborazines and Their Utilization as Precursors to Silicon-Containing Boron Nitride⋆. FunFact: Borazine is also called inorganic benzene because of its resemblance to benzene by structure. The six B-N bonds have length of 1.436 Å. Chemical Physics 1986 , 103 (2-3) , 317-323. H Borazine is aromatic as there are 3 nitrogen atoms in the structure of borazine that donate two electrons each. Robert J. Borazine can also be used as a precursor to grow haxagonal boron nitride (h-BN) thin films and single layers on catalytic surfaces such as copper,[9] platinum,[10] nickel[11] iron[12] and many more, with chemical vapor deposition (CVD). Ab initio determination of the equilibrium geometry and vibrational frequencies of borazine. 1,2-Dihydro-1,2-azaborine (C4BNH6) is a six-membered ring with four carbon atoms, one nitrogen atom, and one boron atom. Da-Zhi Li, Li-Juan Zhang, Ting Ou, Hai-Xia Zhang, Ling Pei, Hua-Jin Zhai, Si-Dian Li. Related four-membered rings. Planar B Boron-Containing Heterocycles: Syntheses, Structures, and Properties of Benzoborauracils and a Benzoborauracil Nucleoside. McMahon. The nature of the chemical bond in borazine (B 2 Due to its similarities to benzene, there have been a number of computational and experimental analyses of borazine's aromaticity. Wayne P. Anderson, W.Daniel Edwards, Michael C. Zerner, Sylvio Canuto. S Boron behaves as a Lewis acid and nitrogen behaves as a Lewis base. Azaborinines: Structures, Vibrational Frequencies, and Polarizabilities. Synthesis and structures of monocyclic 1,4-diaza-2,3-diborine species. Premium Membership is now 50% off! Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 2 The carbon–carbon bond in benzene is shorter length at 1.397 Å. E. A. McNeill, K. L. Gallaher, F. R. Scholer, and S. H. Bauer. Mono-, Di-, and Triborylphosphine Analogues of Triarylphosphines. 3 -Pr [8] This is caused by the difference in electronegativity between B and N, which produces a weaker bond interaction than the C-C interaction in benzene, leading to increased localization of electrons on the B-H and N-H units. By continuing you agree to the use of cookies. [5] However, the borazine ring does not form a perfect hexagon.
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borazine structure and bonding 2020


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Our kit allows you, or your mechanic to bolt in a new upper mount for the shock absorber directly on the frame of the car with ease. This bracket is precisely manufactured to hold the shock absorber in it's exact, identical original position and offers easy to use techniques for sealing the vehicle against dust, stones and water.
This repair kit comes with a 20-page step-by-step installation instruction booklet, with more than 27 quality pictures and drawings showing you how to position the bracket correctly. This booklet was designed with you in mind and can answer any questions in detail you may have during the installation!
Any qualified body shop or mechanic can complete this repair in about half a days work of work for each side. All you need to do is bring our kit with our instructions to your trusted mechanic and let them do the rest, it's that simple!
The most unique aspect of our kits is the ease of installation! Using basic tools and knowledge, you can DO-IT-YOURSELF, at home, in your own garage or driveway. In just about 5 to 6 hours for each side, your repair can be done quickly and cost effectively following our simple to use step-by-step, detailed installation instructions provided with the kit.
(2) Patented heavy duty 1/2" thick steel auxiliary shock mounting platform (Left and Right Side) coated with a rust-protective epoxy coating and manufactured in North America.
GRADE A HIGH QUALITY, I HIGHLY RECOMMEND THIS SELLER!!!!!


Also referred to as Lou Gerhig's Disease, Amyotrophic Lateral Sclerosis (ALS) is a progressive, neurodegenerative disease affecting nerve cells in the brain and spinal cord. Motor neurons reach from the brain to the spinal cord, and from the spinal cord to the muscles throughout the body. The progressive degeneration of the motor neurons in ALS eventually leads to their death, resulting in a loss of the brain's ability to initiate and control muscle movement.
Rodent Spinal Cords: Spinal cord tissue of animal models is commonly used in ALS research. There are several approaches NSA employs in processing spinal cord tissue.
on each MultiBrain® slide section.
Human Tissue: NSA processes large format sections, as seen below, providing a unique opportunity to assess large contiguous cross-sections of tissue. NSA also processes multiple smaller samples from one or more spinal cords usingMultiBrain® Technology. The standard NSA practice of encasing the spinal cord tissue in gelatin provides a significant aid in the handling of tissue sections resulting in an improved final product.
ChAT IHC shown in longitudinal plane of mouse spinal cord, 2x.
ChAT IHC shown in coronal mouse spinal cord to detect motor neuron cells.
ChAT IHC in mouse spinal cord magnified to 10x to show details.
of this protein inside the cells, indicating a disease process.
Amino Cupric Silver stain in SOD ALS mouse spinal cord model is shown below. The black "squiggles" are blood vessels and the fine black lines indicate bundles of degenerated axons.
If you would like further information about how NSA can assist you with your research, please contact us or refer to our catalog.


text:
package node

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"

	jose "github.com/square/go-jose"
	"k8s.io/apimachinery/pkg/util/wait"
	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
)

// the amount of time to wait between each request to the discovery API
const discoveryRetryTimeout = 5 * time.Second

func RetrieveTrustedClusterInfo(d *kubeadmapi.TokenDiscovery) (*kubeadmapi.ClusterInfo, error) {
	if len(d.Addresses) == 0 {
		return nil, fmt.Errorf("the address is required to generate the requestURL")
	}
	requestURL := fmt.Sprintf("http://%s/cluster-info/v1/?token-id=%s", d.Addresses[0], d.ID)
	req, err := http.NewRequest("GET", requestURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to construct an HTTP request [%v]", err)
	}

	fmt.Printf("[discovery] Created cluster info discovery client, requesting info from %q\n", requestURL)

	var res *http.Response
	wait.PollInfinite(discoveryRetryTimeout, func() (bool, error) {
		res, err = http.DefaultClient.Do(req)
		if err != nil {
			fmt.Printf("[discovery] Failed to request cluster info, will try again: [%s]\n", err)
			return false, nil
		}
		return true, nil
	})

	buf := new(bytes.Buffer)
	io.Copy(buf, res.Body)
	res.Body.Close()

	object, err := jose.ParseSigned(buf.String())
	if err != nil {
		return nil, fmt.Errorf("failed to parse response as JWS object [%v]", err)
	}

	fmt.Println("[discovery] Cluster info object received, verifying signature using given token")

	output, err := object.Verify([]byte(d.Secret))
	if err != nil {
		return nil, fmt.Errorf("failed to verify JWS signature of received cluster info object [%v]", err)
	}

	clusterInfo := kubeadmapi.ClusterInfo{}

	if err := json.Unmarshal(output, &clusterInfo); err != nil {
		return nil, fmt.Errorf("failed to decode received cluster info object [%v]", err)
	}

	if len(clusterInfo.CertificateAuthorities) == 0 || len(clusterInfo.Endpoints) == 0 {
		return nil, fmt.Errorf("cluster info object is invalid - no endpoint(s) and/or root CA certificate(s) found")
	}

	// TODO(phase1+) print summary info about the CA certificate, along with the the checksum signature
	// we also need an ability for the user to configure the client to validate received CA cert against a checksum
	fmt.Printf("[discovery] Cluster info signature and contents are valid, will use API endpoints %v\n", clusterInfo.Endpoints)
	return &clusterInfo, nil
}

redpajama_set_name: RedPajamaGithub