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Extinction in Medical News

Tribals in the Brink of Extinction due to Malnutrition and Diseases

In Kumbaribill, a neglected village nestled near the Similipal wildlife sanctuary in Orissa's Mayurbhanj district, deaths due to malnutrition and diseases are// frequent. "We are dying of government apathy," lamented a villager. "We are poor and helpless because we are locked inside the fores...

Global Warming Will Result In the Extinction Of Amphibians

A fungal disease in frogs caused by global warming is resulting in the death of entire populations, and also driving them closer to extinction. The threat to biodiversity // as a result of emerging infectious diseases may also result in danger to human beings. The study published by the journ...

Digital Music Project Aims to Save Tibetan Folk Songs from Extinction

An international team of anthropologists have embarked on a project to save Tibetan folk songs from extinction. Led by anthropology professor Gerald Roche, the volunteer-run Tibetan Endangered Music Project (TEMP) aims at digitalizing and archiving all the songs collected online, and retur...

Humans force yet another species to extinction

Humans are known to damage. And a new study says just that. Due to deforestation and genetic evidence the study points to a catastrophic collapse in orangutan populations// living in the fragmented forests of the Kinabatangan Wildlife Sanctuary in Sabah, Malaysia. Benoit Goossens, Lounès Chikhi, ...

Poisonous Gas Caused Mass Extinction

The largest ever mass extinction on earth may have been triggered by poisonous volcanic gas which erupted in Siberia 250 million years ago // , according to a new research. This must have happened before dinosaurs came into existence, towards the Permian era's end, when over two-thirds of amphibian...

Cancer Endangers Some Wildlife Species

...ancer , noted that cancer threatens the survival of some species, including the Tasmanian devil. The world's largest marsupial carnivore is at risk of extinction due to a contagious cancer called Tasmanian devil facial tumor disease. In an effort to save the species, cancer-free Tasmanian devils are being reloc...

Wildlife faces cancer threat

... In certain situations, cancer threatens the survival of entire species. The Tasmanian devil, the world's largest carnivorous marsupial, is at risk of extinction due to a cancer known as devil facial tumor disease. This form of contagious cancer spreads between individual Tasmanian devils through direct contact...

Inbreeding May Have Doomed Spain's Habsburg Dynasty

...Habsburgs to oblivion via infertility, scientists report in a research paper released last month. "Inbreeding was a major cause responsible for the extinction of this dynasty" and also contributed to the deaths of many Habsburg children, said study co-author Francisco C. Ceballos, a researcher at the Univers...

Treating addiction by eliminating drug-associated memories

...ssociated environment during subsequent tests." This is a process called extinction learning, whereby the compound helps the brain to create new associations i...ther mGluR5 agonists [like CDPPD] might play a role in the treatment of the extinction of other forms of maladaptive learning, such as the traumatic memories asso...

Bed Bug Infestation an Epidemic; Bugs Found in Cell Phone, TVs and Keyboards

...bugs after spring break is over this year," he says. Frequent international travel and hotel stays have helped bed bugs to make a comeback after near extinction in the U.S. The bugs find their way into suitcases and end up being carried home here to the States. Another reason bed bugs are back with a vengean...

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Extinction in Medical Technology

New Study Shows Cloning from Dried Cells Now Possible

...s not always available in developing countries. Dr. Loi also noted that the new technology also could assist with conserving animals threatened with extinction by allowing for easy and inexpensive transportation and storage of cells of endangered species. "This could be invaluable, given we have no way of rec...
Extinction in Medical Products

SpectraMax M2 multi-detection microplate reader w/ dual-mode cuvette port

Description:... pathlength of 1 cm similar to using 96 or 384 cuvettes simultaneously. PathCheck allows you to eliminate standard curves. For compounds with a known extinction coefficient, concentration can be calculated directly from absorbance....
Company:Molecular Devices Corporation

SpectraMax 190

Features:... Use the extinction coefficient of your sample to calculate concentrations directly Correct for volume differences in the wells Expand the dynamic range of your as...
Company:Molecular Devices Corporation
Extinction in Medical Dictionary

Trachoma

...s. ... Trachoma is a keratoconjunctivitis caused by ocular infection with Chlamydia trachomatis. ... Trachoma should stand on the brink of extinction thanks to a 1998 ... Trachoma is an infectious disease of the eye caused by the bacterium Chlamydia ... Trachoma strikes poor, rural commu...

Melanin

...elanin . melanin synonyms. melanin usage examples and melanin quotes. ... melanin definition. mela·nin (mel′ə nin) noun ... How should the extinction coefficient for absorption of melanin be expressed? ... How does one encounter melanin ? Melanin is synthesized enzymatically at ... Melan...
Extinction in Biological News

Surviving mass extinction by leading a double life

Drifting across the world's oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life but their fossils, which are found in abundance, provide scientists with an extraordinary record of climatic change and other major events in the hi...

Current mass extinction spurs major study of which plants to save

(Santa Barbara, Calif.) The Earth is in the midst of the sixth mass extinction of both plants and animals, with nearly 50 percent of all species disappearing, scientists say. Because of the current crisis, biologists at UC Santa Barbara are working day and night to determine which species mus...

Geologist who linked cosmic strike to dinosaurs' extinction takes top prize

Walter Alvarez, the maverick geologist who convinced a skeptical world that dinosaurs and many other living things on Earth were wiped out by a huge fireball from space, has won the highly esteemed Vetlesen Prize. Considered by many the earth sciences' equivalent of a Nobel, the $250,000 awar...

Study of islands reveals surprising extinction results

(Santa Barbara, Calif.) It's no secret that humans are having a huge impact on the life cycles of plants and animals. UC Santa Barbara's Steven D. Gaines and fellow researcher Dov Sax decided to test that theory by studying the world's far-flung islands. Their research, published this month in...

A recipe for saving the world's oceans from an extinction crisis

Jeremy Jackson, senior scientist emeritus of the Smithsonian Tropical Research Institute and the Scripps Institution of Oceanography, asserts in the Aug. 12 issue of the journal Proceedings of the National Academy of Sciences, that the following steps, if taken immediately, could reverse the dem...

Smithsonian hosts tropical extinction debate in Panama

The Smithsonian Tropical Research Institute will host the workshop "Debating the Tropical Extinction Crisis" in Panama from 21-23 August, 2008. The event is sponsored by the Institute, the Silicon Valley Community Foundation, the Science Committee of the Smithsonian National Board, and the Smit...

Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived

(Boston) An international research team in Antarctica led by David Marchant, an associate professor of earth sciences at Boston University, has reported the discovery of exceptionally well-preserved freshwater fossils including mosses, microscopic one-celled algae, known as diatoms, small fresh wa...

Ivory poaching at critical levels: Elephants on path to extinction by 2020?

African elephants are being slaughtered for their ivory at a pace unseen since an international ban on the ivory trade took effect in 1989. But the public outcry that resulted in that ban is absent today, and a University of Washington conservation biologist contends it is because the public seem...

Woolly-mammoth gene study changes extinction theory

A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity. "The population was split into two groups, then one of the groups died out 45,000 years ago,...

Climate change hastens extinction in Madagascar's reptiles and amphibians

New research from the American Museum of Natural History provides the first detailed study showing that global warming forces species to move up tropical mountains as their habitats shift upward. Christopher Raxworthy, Associate Curator in the Department of Herpetology, predicts that at least thre...

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Extinction in Biological Technology

DNA duplication: A mechanism for 'survival of the fittest'

...t 60% of the plant species and numerous animals, including the dinosaurs. Only the most well-adapted plants and animals were able to survive this mass extinction - but what is 'most well-adapted'? A role for DNA duplication? Jeffrey Fawcett, Steven Maere and Yves Van de Peer (VIB-UGent) have been workin...

'Museomics' yields new insights into extinct Tasmanian tiger

...that died in the London Zoo in 1893. In addition to refining the place of this unusual animal in evolutionary history, genetic clues to the impending extinction of the thylacine became apparent. "What I find amazing is that the two specimens are so similar," said Dr. Anders Gtherstrm of Uppsala University...

The sea ice is getting thinner

...eatened ecosystem. According to the newest models, the Arctic could be ice free in less than 50 years in case of further warming. This may cause the extinction of many organisms that are adapted to this habitat. Ocean Currents The Arctic Ocean currents are an important part of global ocean circulation. ...

Visions: Rimas Buinevicius, CEO of Sonic Foundry

...s . And it's all being driven by technology that is changing the process of how we communicate. As a result, the centralized office is on the brink of extinction with few reasons remaining for why we must be tethered to a fixed location. Today's savvy working professional is an armed communications expert, ...

Near Infrared Technology and Optical Agents For Molecular Imaging

...f several centimeters 3, 7, 8 . A key to enabling optical imaging has been the development of suitable NIR fluorochromes with high molar extinction coefficients, good quantum yields and low non-specific tissue binding. There are several commercially available candidate fluorochromes which can ...

XANTHOCHROMIA IN CEREBROSPINAL FLUID

...o account and compensates for the interference of haemoglobin and bilirubin absorption bands. Figure 1: Molar extinction Coefficient of Haemoglobin (left) and Bilirubin (right) [cm-1/M vs nm] The method consists in scanning the region 350-550nm and p...

Verifying Multichannel Pipettor Performance with Standard Dispense Solutions in the SpectraMax Plus (MaxLine Application Note #28)

...ed into a known volume of diluent and the absorbance measured. The actual dispensed volume is then calculated from the absorbance, the light path, the extinction coefficient and the diluent volume. Various chromogens have been used, including Ponceau S dye, methyl red, Evans Blue dye and nicotinamide. 1 ,2, ...

UV Absorbance Measurements in SpectraMax Microplate Spectrophotometers MaxLine Application Note #32)

...tivity, its concentration, and the optical pathlength (Figure 3). For a given solute under defined solution conditions, absorptivity (sometimes called extinction Coefficient) is a constant. In traditional cuvettes, the pathlength is also a constant (typically 1 cm), so the only variable is concentration. In mic...

PathCheck Applied to Measurement of Protein Solutions in the SpectraMax Plus Microplate Spectrophotometer (MaxLine Application Note #26)

...suring the absorbance at 280 nm and calculating the concentration using the extinction coefficient of the protein. The procedure is feasible because extinction coefficients are typically obtained using standard cuvettes with a fixed 1 ...

Performance of fluorescent dyes with LEADseeker Multimodality Imaging System

... c = concentration O.D. = absorption value determined ε = extinction coefficient of the relevant fluorescent dye

Following determination of concentration, each dye was diluted further in buffer to a t...

Extinction in Biological Products

Avidin, FITC conjugated/tagged from Invitrogen

Description:... Avidin is chromatographically purified from egg white. The extinction coefficient , E(1%) at 280nm is 15.5.The product is in 10 mM phosphate-buffered saline, pH 7.4, containing 1% bovine serum albumin, 0.05% sodium a...
Company:Invitrogen
Extinction in Biological Definition

Extinction

In biology and ecology , extinction is the ceasing of existence of a species or group of species. The moment of extinction is generally considered to be the death of the last individual of that species. Extinction is a natural phenomenon; it is estimated that 99.9% of all species that hav...

Adaptive radiation

...change. An example of adaptive radiation as the result of an environmental change is the rapid spread and development of mammalian species after the extinction of the dinosaurs. Archipelagoes . Isolated ecosystems , such as islands and mountain areas, can be colonized by a new species which upon establ...

Biodiversity

... has coincided with the expansion of concern over extinction observed in the last decades of the 20th century....decline, with one species after another suffering extinction . Estimates of global species diversity vary fro... See also : biogeography , Amazonian forest , extinction , Unified neutral theory of biodiversity . I...

Botany

...ronmental changes Plants can also help us understand changes in on our environment in many ways. Understanding habitat destruction and species extinction is dependent on an accurate and complete catalogue of plants provided systematics and taxonomy . Plant responses to ultraviolet radiation can ...

Competitive exclusion principle

...s will always have an ever so slight advantage over the other that leads to extinction of the second competitor in the long run. The competitive exclusion prin...on-colonization trade-offs , and lag prevent exclusion (ignoring stochastic extinction over longer time-frames). However, such systems tend to be analytically int...

Cold-blooded

... times the number of poikilothermic animals as homeothermic animals. However, in a given niche, homeotherms often drive poikilothermic competitors to extinction because homeotherms can gather food for a greater fraction of each day. Poikilotherms succeed in some niches, such as islands, or distinct bioreg...

Eugenics

...and since many human societies sought to protect the underprivileged and weak, those societies were at odds with the natural selection responsible for extinction of the weakest. Only by changing these social policies, Galton reasoned, could society be saved from a "reversion towards mediocrity"—a phrase h...

Evolution

...evolution and macroevolution 1.5 Speciation and extinction 2 Evolutionary biology 3 History of e... can be said to have occurred. Speciation and extinction Speciation is the creation of two or more spec...ning of the theory of punctuated equilibrium . extinction is the disappearance of species (i.e. gene pools...

Francis Galton

...fter examining forearm and height measurements, Galton introduced the concept of correlation in 1888 . His statistical study of the probability of extinction of surnames led to the concept of Galton-Watson stochastic processes . Fingerprint The method of identifying criminals by their fingerprints ...

Gene

...those that have reproduced successfully in the past. Often, many individual organisms share a gene; thus, the death of an individual need not mean the extinction of the gene. Indeed, if the sacrifice of one individual enhances the survivability of other individuals with the same gene, the death of an individual...
Extinction in Biological Dictionary

Extinction

In biology and ecology, extinction is the end of a species or group of taxa. The moment of extinction is generally considered to be the death of the last individual of that species . Because a species' potential range may be... Extinction in psychology refers to the lowering of t...

Metapopulation

...ve at the library for BIOL 6301, Sect. ... We consider a discrete size-structured metapopulation mo ... tion and absence of emigration lead to extinction of the metapopulation . ... The metapopulation is not the entire population, just the population within a set area. ... The metapopulation ...

Mesozoic Era

...illions of ... The Mesozoic era came to an end with the great terminal extinction event known ... A really long time ago.(By the Numbers)(dinosaurs)( M...Triassic period, which opens the Mesozoic era , follows a near-complete extinction of life. Recovery from the brink is predictably slow. ... ...

Hybridization

...mic orbitals to form new ... Hybridization between the endemic Cuban Crocodile (Crocodilus rhombifer) and the ... JM and Simberloff, D. (1996) extinction by Hybridization and Introgression. ... in situ hybridization protocols ... In situ hybridization , as the name suggests, is a method of loc...

Genetic assimilation

... Note: Genetic assimilation is sometimes used to describe "eventual extinction of a natural species as massive pollen flow occurs from another related species and the older crop becomes more like the new crop." This u...

Founder effect

..... Founder's Effect . From RationalWiki. Jump to: navigation, search ... a species affected by the Founder's Effect , having come close to extinction ... Zoology information, history, articles and research from Academic Journals, Newspapers, and magazines at HighBeam.com. Free Trial, Credit Card...
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