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Chemistry
Indigenous technology to increase range of Indian missiles by a third
May 14, 2008
Bangalore: Very soon Indian missiles will fly lighter and longer thanks to an innovative technology developed by the prestigious Indian Institute of Science here. via Domain-B
Student charged by his project on batteries
May 14, 2008
"I got a snap circuit kit and I had to make a circuit that would drain the batteries" When Riverside Middle School seventh-grader Nathan Harrell was working on his project for the regional science fair, he had no idea he would learn so much about research or science. via Tribune-Times
New device uses carbon nanotubes to rate chillis' hotness
May 13, 2008
"Stronger chillies mean more electric current" London, May 13: Scientists have developed a new device that takes the help of carbon nanotubes to provide an objective and cost effective way to rate how hot a particular chilli is. via Daily India
Vets keep tabs on stingrays at Calgary Zoo
May 13, 2008
"You don't want to speculate, but people do strange things sometimes." Published:A 10:30 am Veterinarians at the Calgary Zoo are monitoring nine surviving stingrays after 34 of the previously healthy marine animals stumped animal experts by suddenly dying. via Edmonton Journal
A Molecular Thermometer For The Distant Universe
May 13, 2008
"Our unique set of VLT observations allows us to deduce a temperature of 9.15 K, plus or minus 0.7 K, in excellent agreement with the theory." This detection allows them to obtain the most precise measurement of the cosmic temperature at such a remote epoch. via Science Daily
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Pharmacology and Medicine
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Biology
Searching For Candidate Speciation Genes Using A Proteomic Approach: Seminal Proteins In Field Crickets
For decades, evolutionary biologists have sought to discern the types of genetic changes that lead to the creation of new species. To date, very few "speciation genes" have been identified. These "speciation genes" help to create and preserve species boundaries by preventing the production of hybrids. Genes controlling fertilization are likely candidates. Some male ejaculate proteins affect female reproductive physiology and behavior.
Multiple Ancient Origins Of Neoteny In Lycidae (Coleoptera): Consequences For Ecology And Macroevolution
Trilobite larvae are spectacular, primitive looking insects, recognised as the females of particular net-winged beetles (Lycidae). They are neotenics (= remaining young) which do not pupate and remain obligatory larviform when sexually mature. Neoteny permits evolutionary novelty, but most lineages are evolutionarily short-lived or may reverse to full adult development to escape changing environmental conditions.
A Label Of Health: A Previous Immune Challenge Is Reflected In The Expression Of A Female Plumage Trait
In the bird world, the ladies traditionally size up and select their mates. But a recent study suggests that sometimes the guys get to be choosy too. The authors show that ornamental white bands on the wings of cryptic brown female Common Eiders is directly affected by an immune challenge during breeding. Immune challenged females produced feathers with smaller white fringes.
Sleeping Outside The Box: Electroencephalographic Measures Of Sleep In Sloths Inhabiting A Rainforest
We performed the first electroencephalogram (EEG), or brain wave, recordings of sleep on animals in the wild using a recently developed miniaturized EEG recorder, and found that brown-throated three-toed sloths (Bradypus variegates) inhabiting the canopy of a tropical rainforest only sleep 9.6 hours per day, over six hours less than previously reported in captivity, and much less than commonly believed.
Link Between Psychological Stress And Overeating Discovered By Yerkes Researchers
Researchers at the Yerkes National Primate Research Center, Emory University, have found socially subordinate female rhesus macaques over consume calorie-rich foods at a significantly higher level than do dominant females.The study, which is available in the online edition of Physiology and Behavior, is a critical step in understanding the psychological basis for the sharp increase in obesity across all age groups since the mid-1970s.
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Materials
Tyco Electronics Divest Radio Frequency Component Business for $425Million
Tyco Electronics Ltd. today announced that the company has entered into a definitive agreement to sell its Radio Frequency Components and Subsystem business to Cobham Defense Electronic Systems, a su...
Zeptoliter pipette delivers nanodroplets
Nanometer-sized droplets of liquid crystallize differently than their larger counterparts.
Purifying Nanotubes
Plasma process selectively destroys metallic tubes.
All nanotubes are not created equal
Significant differences among different single-walled carbon nanotubes make it difficult to model their environmental risk.
Malvern Particle Sizer Used to Develop Vaccine Delivery System for Developing Countries
Researchers at Aerovax, working at the Massachusetts Institute of Technology (MIT) in the US, are using the Spraytec particle size analyzer from Malvern Instruments in the development of an innovative...
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Companies
CAS - Colors of Chemistry - May update
This month featuring the Chinese Lantern Plant
Upcoming CAS e-Seminars
CAS e-Seminars on WebEx include traditional e-Seminars and new STN Virtual Workshops. Both are free, interactive, web-based seminars that bring professional training to your desktop.
Job Openings at CAS
Current Job Openings at CAS as of May 12, 2008
CAS is now assigning 10-digit CAS Registry Numbers
To accommodate the continuing growth of substance information in the CAS REGISTRY, CAS is now assigning 10-digit CAS Registry Numbers - January 16, 2008
STN Express v8.3 Available
STN Express, Version 8.3, is now available for the Windows operating system. The software is free to all STN users, regardless of which version you currently use or if you are new to STN Express.
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Crippled Wings, Missing Feelers