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Ultrasonic Frogs Able To Tune Their Ears To Different Frequencies Could Have Implications For Human Hearing

Categorie : Biology / Biochemistry
Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. It is the only known example of an animal that can actively select what frequencies it hear ...

read more Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. It is the only known example of an animal that can actively select what frequencies it hear read more Sat Jul 2008 Sat Jul 2008

A High Incidence Of Parthenogenesis In Agricultural Pests

Categorie : Biology / Biochemistry
Asexual reproduction is thought to be relatively more common in stable and constant environments than in variable environments where sexual reproduction predominates. We therefore hypothesize that insect pests of the homogenous environments provided by crops, pastures and forests should be more like ...

read more Asexual reproduction is thought to be relatively more common in stable and constant environments than in variable environments where sexual reproduction predominates. We therefore hypothesize that insect pests of the homogenous environments provided by crops, pastures and forests should be more like read more Sat Jul 2008 Sat Jul 2008

Cancer Drug Delivery Research At Case Western Reserve University Cuts Time From Days To Hours

Categorie : Biology / Biochemistry
Researchers at Case Western Reserve University have developed a technique that has the potential to deliver cancer-fighting drugs to diseased areas within hours, as opposed to the two days it currently takes for existing delivery systems. Using laboratory mice, drug delivery time from injection t ...

read more Researchers at Case Western Reserve University have developed a technique that has the potential to deliver cancer-fighting drugs to diseased areas within hours, as opposed to the two days it currently takes for existing delivery systems. Using laboratory mice, drug delivery time from injection t read more Sat Jul 2008 Sat Jul 2008

Public Information Affects Breeding Dispersal In A Colonial Bird: Kittiwakes Cue On Neighbours

Categorie : Biology / Biochemistry
Recent studies suggested that individuals may use the reproductive performance of conspecifics as a source of public information on breeding patch quality, but experimental evidence is still limited for species breeding in colonies, such as seabirds. ...

read more Recent studies suggested that individuals may use the reproductive performance of conspecifics as a source of public information on breeding patch quality, but experimental evidence is still limited for species breeding in colonies, such as seabirds. read more Sat Jul 2008 Sat Jul 2008

Digit Length May Reveal Unusual Breeding Behaviour In A Seabird

Categorie : Biology / Biochemistry
The hormonal environment experienced during prenatal development may affect adult phenotype and behavior. Digit lengths may provide an estimate of steroid levels encountered during embryonic development in humans and other vertebrates. Finger patterns in humans, specifically 2D:4D finger ratios, hav ...

read more The hormonal environment experienced during prenatal development may affect adult phenotype and behavior. Digit lengths may provide an estimate of steroid levels encountered during embryonic development in humans and other vertebrates. Finger patterns in humans, specifically 2D:4D finger ratios, hav read more Sat Jul 2008 Sat Jul 2008

Programming With Models: Modularity And Abstraction Provide Powerful Capabilities For Systems Biology

Categorie : Biology / Biochemistry
The Genome Projects constructed computational representations of the DNA of organisms, enabling in-silico analysis of genomes in place of in-vivo experiments. Post-genomic systems biology seeks to construct computational representations of the systems of interacting proteins and cells which implemen ...

read more The Genome Projects constructed computational representations of the DNA of organisms, enabling in-silico analysis of genomes in place of in-vivo experiments. Post-genomic systems biology seeks to construct computational representations of the systems of interacting proteins and cells which implemen read more Sat Jul 2008 Sat Jul 2008

The Type And Timing Of Social Information Alters Offspring Production - Biology Letters

Categorie : Biology / Biochemistry
Social information, or information from the behavior of others, may be commonly used to improve estimates of resource quality. We exposed female cactus bugs (Chelinidea vittiger) to different types of social information, presented at different times, to examine theoretical predictions regarding the ...

read more Social information, or information from the behavior of others, may be commonly used to improve estimates of resource quality. We exposed female cactus bugs (Chelinidea vittiger) to different types of social information, presented at different times, to examine theoretical predictions regarding the read more Sat Jul 2008 Sat Jul 2008

Male Blue Monkeys Alarm Call In Response To Danger Experienced By Others

Categorie : Biology / Biochemistry
Primate vocal behaviour is often said to be biologically hard-wired. According to this idea, individuals produce calls from a limited repertoire, and mostly to evolutionarily important events, such as discovery of food or a predator. In doing so, they are thought to have little or no awareness of th ...

read more Primate vocal behaviour is often said to be biologically hard-wired. According to this idea, individuals produce calls from a limited repertoire, and mostly to evolutionarily important events, such as discovery of food or a predator. In doing so, they are thought to have little or no awareness of th read more Sat Jul 2008 Sat Jul 2008

Mutual Data Reveals Variation In Temperature-dependent Sex Determination In Response To Environmental Fluctuation, Lifespan And Selection

Categorie : Biology / Biochemistry
In many reptiles, the sex of an individual is determined early in development by incubation temperature (temperature-dependent sex determination, TSD). But what determines the relationship between sex and temperature? Schwanz and Proulx address this question by simulating the evolution of TSD. They ...

read more In many reptiles, the sex of an individual is determined early in development by incubation temperature (temperature-dependent sex determination, TSD). But what determines the relationship between sex and temperature? Schwanz and Proulx address this question by simulating the evolution of TSD. They read more Sat Jul 2008 Sat Jul 2008

Predicting Species Interactions From Edge Responses: Mongoose Predation On Hawksbill Sea Turtle Nests In Fragmented Beach Habitat

Categorie : Biology / Biochemistry
Human land use can fragment landscapes, creating new habitat edges. These edges affect how animals use the landscape and how predators interact with their prey. Edges of beach vegetation in Barbados create an ecological trap for endangered hawksbill sea turtles: while hawksbills prefer to nest near ...

read more Human land use can fragment landscapes, creating new habitat edges. These edges affect how animals use the landscape and how predators interact with their prey. Edges of beach vegetation in Barbados create an ecological trap for endangered hawksbill sea turtles: while hawksbills prefer to nest near read more Sat Jul 2008 Sat Jul 2008

Novel Structure Protiens Could Play A Role In Apoptosis

Categorie : Biology / Biochemistry
Isoforms from Novel Structure Proteins (NSP), a new family of genes discovered by researchers in the Sbarro Institute for Cancer Research and Molecular Medicine in Temple University's College of Science and Technology, could be involved in apoptosis or programmed cell death. ...

read more Isoforms from Novel Structure Proteins (NSP), a new family of genes discovered by researchers in the Sbarro Institute for Cancer Research and Molecular Medicine in Temple University's College of Science and Technology, could be involved in apoptosis or programmed cell death. read more Sat Jul 2008 Sat Jul 2008

Sex And Lifespan Linked In Worms: A Family Of Sugar-Like Molecules Controls Both

Categorie : Biology / Biochemistry
A group of scientists who set out to study sex pheromones in a tiny worm found that the same family of pheromones also controls a stage in the worms' life cycle, the long-lived dauer larva. The findings, published in Nature online on July 23, represent the first time that reproduction and lifespa ...

read more A group of scientists who set out to study sex pheromones in a tiny worm found that the same family of pheromones also controls a stage in the worms' life cycle, the long-lived dauer larva. The findings, published in Nature online on July 23, represent the first time that reproduction and lifespa read more Sat Jul 2008 Sat Jul 2008

A New Research Centre For Studying Nanotoxicology, UK

Categorie : Biology / Biochemistry
The Health Protection Agency has set up a new centre to study the possible health effects of human exposure to nanoparticles. The National Nanotoxicology Research Centre (NNRC) is being developed at the Agency's Centre for Radiation, Chemical and Environmental Hazards (CRCE) at Chilton in Oxfordshir ...

read more The Health Protection Agency has set up a new centre to study the possible health effects of human exposure to nanoparticles. The National Nanotoxicology Research Centre (NNRC) is being developed at the Agency's Centre for Radiation, Chemical and Environmental Hazards (CRCE) at Chilton in Oxfordshir read more Sat Jul 2008 Sat Jul 2008

Data On Drugs And Small Molecules Is Placed In The Public Domain, Helping The Discovery And Development Of New Medicines

Categorie : Biology / Biochemistry
The Wellcome Trust has awarded 4.7 million pounds [5.8 million euros] to EMBL's European Bioinformatics Institute [EMBL-EBI] to support the transfer of a large collection of information on the properties and activities of drugs and a large set of drug-like small molecules from the publicly listed c ...

read more The Wellcome Trust has awarded 4.7 million pounds [5.8 million euros] to EMBL's European Bioinformatics Institute [EMBL-EBI] to support the transfer of a large collection of information on the properties and activities of drugs and a large set of drug-like small molecules from the publicly listed c read more Sat Jul 2008 Sat Jul 2008

EPA Funds $2.25 Million To Research Connection Between Biodiversity And Disease

Categorie : Biology / Biochemistry
Biodiversity has long been recognized by EPA as critical for environmental well-being. Humans rely on healthy ecosystems to provide food, clean air, and drinking water. But less understood is the connection between disease and biodiversity (the number and variety of plants and animals found in a geo ...

read more Biodiversity has long been recognized by EPA as critical for environmental well-being. Humans rely on healthy ecosystems to provide food, clean air, and drinking water. But less understood is the connection between disease and biodiversity (the number and variety of plants and animals found in a geo read more Sat Jul 2008 Sat Jul 2008

Mate Or Hibernate? That's The Question Worm Pheromones Answer

Categorie : Biology / Biochemistry
If worms could talk, they might tell potential suitors, "I like the way you wriggle," complete with that telltale come slither look. But worms send their valentines via signals known as pheromones, a complex chemical code researchers are now cracking, according to a study published on July 23 in the ...

read more If worms could talk, they might tell potential suitors, read more Sat Jul 2008 Sat Jul 2008

Stanford Worm Study Challenges Prevailing Theory Of Aging

Categorie : Biology / Biochemistry
Age may not be rust after all. Specific genetic instructions drive aging in worms, report researchers at the Stanford University School of Medicine. Their discovery contradicts the prevailing theory that aging is a buildup of tissue damage akin to rust, and implies science might eventually halt or e ...

read more Age may not be rust after all. Specific genetic instructions drive aging in worms, report researchers at the Stanford University School of Medicine. Their discovery contradicts the prevailing theory that aging is a buildup of tissue damage akin to rust, and implies science might eventually halt or e read more Sat Jul 2008 Sat Jul 2008

UC Santa Barbara Chemist Goes Nano With CoQ10

Categorie : Biology / Biochemistry
If Bruce Lipshutz has his way, you may soon be buying bottles of water brimming with the life-sustaining coenzyme CoQ10 at your local Costco. Lipshutz, a professor of chemistry at UC Santa Barbara, is the principal author of an upcoming review, "Transition Metal Catalyzed Cross-Couplings Going Gr ...

read more If Bruce Lipshutz has his way, you may soon be buying bottles of water brimming with the life-sustaining coenzyme CoQ10 at your local Costco. Lipshutz, a professor of chemistry at UC Santa Barbara, is the principal author of an upcoming review, read more Sat Jul 2008 Sat Jul 2008

Key Mechanism Of Cellular Damage In Aging And Disease Unravelled

Categorie : Biology / Biochemistry
Damage can be measured by newly captured events in cell's powerhouse Researchers have taken a first snapshot of how a class of highly reactive molecules inflicts cellular damage as part of aging, heart disease, stroke, cancer, diabetes, kidney disease and Alzheimer's disease to name a few. ...

read more Damage can be measured by newly captured events in cell's powerhouse Researchers have taken a first snapshot of how a class of highly reactive molecules inflicts cellular damage as part of aging, heart disease, stroke, cancer, diabetes, kidney disease and Alzheimer's disease to name a few. read more Sat Jul 2008 Sat Jul 2008

Genes Evolve To Minimize Protein Production Errors

Categorie : Biology / Biochemistry
Scientists at Harvard University and the University of Texas at Austin have found that genetic evolution is strongly shaped by genes' efforts to prevent or tolerate errors in protein production. Their study also suggests that the cost of errors in protein production may lie in the malformed prote ...

read more Scientists at Harvard University and the University of Texas at Austin have found that genetic evolution is strongly shaped by genes' efforts to prevent or tolerate errors in protein production. Their study also suggests that the cost of errors in protein production may lie in the malformed prote read more Sat Jul 2008 Sat Jul 2008

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