Coco Bonds Current Events

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When shareholders exacerbate their own banks' crisis
Banks are increasingly issuing 'CoCo' bonds to boost the levels of equity they hold. In a crisis situation, bondholders are forced to convert these bonds into a bank's equity. To date, such bonds have been regarded only as a means of averting a crisis. A study by German economists now shows that if such bonds are badly constructed, they worsen a crisis instead of stabilizing the banking system. (2014-11-21)

New data processing module makes deep neural networks smarter
Artificial intelligence researchers have improved the performance of deep neural networks by combining feature normalization and feature attention modules into a single module that they call attentive normalization. The hybrid module improves the accuracy of the system significantly, while using negligible extra computational power. (2020-09-16)

Palm tree Coco de mer performs 'parental care' and modifies its habitat
Can plants take care of their offspring? A TU Darmstadt scientist has found that they can. The coco de mer palm manages to modify its extremely barren habitat in the Seychelles in such a manner that it produces the largest fruits of all plants, optimally supplying its offshoots and even protecting them from competition. (2015-03-11)

Strong family bonds reduce anxiety in young people with lived experience of domestic violence
Strong relationships with other family members can help raise self-esteem and reduce anxiety for some young people who grow up in homes affected by parental domestic violence. (2015-07-09)

Spider silk reveals a paradox of super-strength
Since its development in China thousands of years ago, silk from silkworms, spiders and other insects has been used for high-end, luxury fabrics as well as for parachutes and medical sutures. Now, National Science Foundation-supported researchers are untangling some of its most closely guarded secrets, and explaining why silk is so super strong. (2010-03-17)

Nagoya University researchers break down plastic waste
Nagoya University team develops ruthenium catalysts to hydrogenate inert amide bonds under mild conditions. Molecular design of the catalyst framework promotes a key step of the reaction, the transfer of hydrogen to the amide, to greatly improve reactivity. This new low-energy approach may enable designer peptide synthesis and facilitate break down of plastic waste into more useful compounds. (2017-05-26)

From nata de coco to computer screens: Cellulose gets a chance to shine
Scientists at Osaka University determined the intrinsic birefringence of cellulose molecules, which have great potential to improve smartphone and computer screens. (2019-04-18)

Osaka chemists build new chemical structures on unreactive bonds
Osaka University organic chemists transform strong carbon fluorine bonds into crowded quaternary carbon centers with cobalt catalyzed Grignard chemistry. (2017-07-26)

Carbon-carbon covalent bonds far more flexible than presumed
A Hokkaido University research group has successfully demonstrated that carbon-carbon (C-C) covalent bonds expand and contract flexibly in response to light and heat. This unexpected flexibility of C-C bonds could confer new properties to organic compounds. (2020-10-01)

Iowa State, Ames Lab researchers find the mechanism that forms cell-to-cell catch bonds
Strong cell-to-cell bonds are important to heart health and fighting cancer. The bonds connecting heart cells have to withstand constant forces caused by continuous pumping. And, in some cancers, bonds no longer resist forces, allowing cancer cells to detach and spread. Iowa State's Sanjeevi Sivasankar and his research group are studying the biophysics of certain biological bonds. Their most recent findings have just been published online by Nature Communications. (2014-06-05)

Iowa State, Ames Lab researchers find 3 unique cell-to-cell bonds
Researchers led by Sanjeevi Sivasankar of Iowa State University and the Ames Laboratory are studying how biological cells connect to each other. Problems with cell adhesion can lead to diseases, including cancers and cardiovascular problems. The research team's findings have been published online by the Early Edition of the Proceedings of the National Academy of Sciences. (2012-11-01)

New research identifies GP and parental reluctance to address childhood obesity
One in five 11-year-old children is currently defined as obese, and the country faces a potentially huge burden of increased obesity-associated morbidity and early mortality. New research by the University of Bristol has found that despite the health implications of childhood obesity, many GPs remain reluctant to discuss the topic with parents or to refer overweight children to weight reduction services. (2011-07-27)

New framework improves performance of deep neural networks
Researchers have developed a new framework for building deep neural networks via grammar-guided network generators. In experimental testing, the new networks -- called AOGNets -- have outperformed existing state-of-the-art frameworks, including the widely used ResNet and DenseNet systems, in visual recognition tasks. (2019-05-21)

How selenium compounds might become catalysts
Chemists at Ruhr-Universitat Bochum have tested a new approach for activating chemical reactions based on the element selenium. They demonstrated that selenium can form bonds similar to those of hydrogen bonds, resulting in accelerated reactions. The exact mechanism is described by the team at the Chair of Organic Chemistry 1 in Bochum, including Prof Dr Stefan Huber and Patrick Wonner, in the journal 'Angewandte Chemie', in collaboration with Prof Dr Daniel Werz from Braunschweig University of Technology. (2017-07-13)

Hydrogen bonds directly detected for the first time
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel's Swiss Nanoscience Institute network have reported the results in the journal Science Advances. (2017-05-12)

RUDN chemists created a precise model of chemical bonds in diazone dyes
Chemists from RUDN carried out detailed analysis of the nature of intermolecular bonds between nitrogen and chlorine in the molecules of azo dyes and defined their photochromic properties. The scientists also clarified the importance of hydrogen and halogen intermolecular bonds in the stabilization of dyes structure. The research can be useful for all the types of azo dyes applications. The article was published in the Dyes and Pigments journal. (2018-09-14)

Solar material can 'self-heal' imperfections, new research shows
A material that can be used in technologies such as solar power has been found to self-heal, a new study shows. (2021-01-26)

Breaking benzene
In research published in Nature, Zhaomin Hou and colleagues from the RIKEN Center for Sustainable Resource Science in Japan have demonstrated a way to use a metallic complex, trinuclear titanium hydride, to accomplish the task of activating benzene by breaking the aromatic carbon-carbon bonds at relatively mild temperatures and in a highly selective way. (2014-08-27)

Brandeis chemist wins Sloan Research Fellowship
Chemist Oleg Ozerov has won a 2006 Sloan Reserach Fellowship, a highly competitive award given to the very best young faculty in specific scientific disciplines. (2006-03-02)

Strained, symmetric, and new
Many natural compounds used in medicine have complex molecular architectures that are difficult to recreate in the lab. Help could come from a small hydrocarbon molecule, called tetravinylallene, which has been synthesized for the first time by Australian scientists. As detailed in the journal Angewandte Chemie, tetravinylallene can be used to construct complex molecular frameworks more quickly and with less environmental impact than by using established methods. (2019-09-30)

For the first time, a five-fold bond
Chemists at UC Davis have made the first stable compound with a five-fold bond between two metal atoms. The work with chromium could give researchers new insights into the nature of chemical bonding. (2005-10-13)

Harvard researchers develop tough, self-healing rubber
Imagine a tire that could heal after being punctured or a rubber band that never snapped. Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new type of rubber that is as tough as natural rubber but can also self-heal. (2017-08-16)

The impact of molecular rotation on a peculiar isotope effect on water hydrogen bonds
Quantum nature of hydrogen bonds in water manifests itself in peculiar physicochemical isotope effects: while deuteration often elongates and weakens hydrogen bonds of typical hydrogen-bonded systems composed of bulky constituent molecules, it elongates but strengthens hydrogen bonds of water molecular aggregates. The origin of this unique isotope effect of water molecules remains to be elucidated at the molecular level. A recent experimental study on the sublimation of isotope-mixed water ice has tackled this issue. (2019-12-02)

Only the weak survive?: Pitt team adds more give for stronger self-healing materials
A Pitt and Carnegie Mellon team developed a new model of how self-repairing materials function and show that materials with a certain number of easily breakable bonds can absorb more stress, a natural trick found in the resilient abalone shell. The team's findings reveal the previously unknown mechanics and ideal structure of self-healing materials. (2011-03-22)

Warm water vibrates for longer
Dutch researcher Arjan Lock has investigated the behaviour of vibrating water molecules. Using ultra-short laser pulses, he found that hydrogen atoms in water molecules vibrate for longer at higher temperatures. This is abnormal because in the majority of substances a vibration lives shorter at higher temperatures. (2004-02-05)

Molecular "Ice Cubes" Reveal Secrets Of Water's Properties
Nature's tiniest ice cubes are providing new information about the unique properties of water. A Purdue University study shows that when water molecules are cooled to very low temperatures, they naturally arrange themselves into small cubic structures of eight water molecules. These tiny cubes come in two forms. (1997-06-12)

Beyond the bonds that bind: UCSB researchers discover hydrogen can form multicenter bonds
Researchers at the University of California, Santa Barbara have shown that, under the right circumstances, hydrogen can form multicenter bonds, where one hydrogen atom simultaneously bonds to as many as four or six other atoms. Tested for hydrogen in metal oxides, the discovery could have a broad range of technological impact. The research is available today in the advance online publication of Nature Materials. (2006-12-03)

Apps for children should emphasize parent and child choice, researchers say
Parents don't need to fear their children playing with iPads and other devices, researchers say. Mindful play with an adult, combined with thoughtful design features, can prove beneficial to young developing minds. New research shows that thoughtfully designed content that intentionally supports parent-child interactions facilitated the same kind of play and development as analog toys. (2018-05-01)

Phosphorus rubber
Goodyear's 1839 discovery of the vulcanization of natural rubber obtained from rubber trees marks the beginning of the modern rubber industry. A variety of synthetic rubber products were subsequently developed. In the journal Angewandte Chemie, scientists have now introduced a new, interesting variant: a phosphorus-containing rubber with a structure that corresponds to that of natural rubber. (2017-07-10)

New chemical reaction developed at UCLA could eventually yield new fuels and medications
UCLA chemists have developed a new technique to convert carbon-hydrogen bonds into carbon-carbon bonds using catalysts made of silicon and boron, both abundant and inexpensive elements. (2017-05-23)

'Radical' new approach to connecting carbon atoms
Researchers at Princeton University designed an innovative reaction that forms valuable carbon-carbon bonds from simple starting materials. Using an under-explored technique in organic synthesis called PCET, the reaction opens up a novel pathway for reactivity. (2016-10-17)

Not all baseball stars treated equally in TV steroid coverage, says study of network news
Retired baseball stars Barry Bonds, Mark McGwire and Rafael Palmeiro each had Hall of Fame-worthy numbers, each hitting more than 500 home runs. All three also were tarred by allegations of steroid use. Their stories, however, received very different treatment over 12 years of national television news coverage, says University of Illinois professor Brian Quick, lead author on a paper about that coverage and its effects, published online Nov. 20 by the journal Communication Research. (2014-11-21)

Nonbiological Molecule May Hold Clues To Protein Folding
University of Illinois chemists have synthesized a nonbiological molecule that self-assembles into a structure similar to that found in living matter. The discovery may offer new insights into the biological folding process. (1997-09-18)

CCNY research team in molecular breakthrough
Reducing a barrier that generally hinders the easy generation of new molecules, a team led by City College of New York chemist Mahesh K. Lakshman has devised a method to cleave generally inert bonds to allow the formation of new ones. The study is the cover story in the journal ACS Catalysis published by the American Chemical Society. (2016-03-14)

Controlling phase changes in solids
A recent study demonstrates the rapid control of phase-changes in resonantly bonded materials. (2015-07-28)

From C-H to C-C at room temperature
By oxidizing the iridium center of the reaction intermediate, IBS scientists achieve arylation of C-H bonds at mild conditions. (2017-12-27)

Study: Hydrogen Bonds Aren't Key To DNA Pairing After All
Hydrogen bonds play at best only a peripheral role in the accurate pairing of DNA bases, University of Rochester researchers have shown, overturning the conventional wisdom long held by biochemists. The finding forces scientists back to the drawing board to revisit the fundamental question of what1s really behind the amazing fidelity of DNA replication. (1997-09-29)

Sibling bonding is stronger when dad's around
For many female mammals, mothers and maternal sisters dominate all aspects of an individual's social life. Emily Lynch of the University of Missouri, Columbia, in the US argues fathers might play a significant role, as well. She is the lead author of a study that highlights how social bonds develop between paternal half-siblings when their shared father is in the vicinity. Her findings are published in Springer's journal Behavioral Ecology and Sociobiology. (2017-07-18)

Breaking harmful bonds
Everybody loves the way eggs slide off of Teflon pans. Indeed, the carbon-fluorine bond at the heart of Teflon cookware is so helpful we also use it in products from clothing to blood substitutes. But the very strength of the C-F bond also gives it greenhouse gas effects. In Science this week, Brandeis researchers report a catalyst that breaks the C-F bond and converts it to a carbon-hydrogen bond, rendering it harmless to the environment. (2008-08-28)

Breakthrough image of atomic bonding will advance the science of new materials
Researchers funded by the National Science Foundation have produced the first experimental image of atomic bonding in copper oxide. Atomic bonds, or molecular orbitals, are the (1999-09-01)

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