A 'private bandwidth' for communication in bats: Evidence from insular horseshoe bats
... has been proposed that such differences are large enough to allow recognition of conspecifics. The study proved that in Sardinia, Mediterranean (Rhinolophus euryale) and lesser (R.. hipposideros) horseshoe bats show divergence in call frequency, spacing them out more than their conspecifics living in pe...Study begins to reveal clues to the cause and progression of sepsis
...dying of cardiovascular disease, but we didnt know enough about the disease to effectively treat and prevent it, said Derek C. Angus, M.D., M.P.H., professor and vice chair of research, department of critical care medicine, University of Pittsburgh School of Medicine. In response, the National Institutes of...Climate change isolates Rocky Mountain butterflies
...er types of butterflies, need sunlight to generate enough body heat in order to fly, and forests are general...e particularly cold winter or summer season may be enough to wipe out an entire meadow of Parnassius, said Roland, who is the lead author of a paper on this r...Abnormal fat metabolism underlies heart problems in diabetic patients
...n have mutations that prevent cells from producing enough cardiolipin. The connection between cardiolipin and heart disease in Barth syndrome led the Washington University researchers to wonder if cardiolipin was also affected in diabetic hearts. But in order to measure cardiolipin, the researchers needed a...Conventional plowing is 'skinning our agricultural fields'
...he people could move to other places and find rich enough soil to sustain them. But with the world population now exceeding 6.6 billion people, Montgomery argues that there are few, if any, places left where the soil can feed a large population for very long. "We are skinning our agricultural fields," Mo...Lost forest yields several new species
...e Misotshi-Kabogo region is biologically important enough to conserve in the form of a protected area, said Dr. James Deutsch, director of WCS Africa Program. Since few people live there, it would be relatively easy to create a park while supporting the livelihoods of people who live in the landscape....Study: Sticking to the sand might not be such good, clean fun for beachgoers
...he dry sand to the sea during their study was high enough to cause a beach advisory. According to the Environmental Protection Agency, a single sample of marine water containing more than 104 enterococci bacteria per 100 milliliters is unsafe to swim in. Boehm found 120 enterococci per 100 milliliters durin...UCLA scientists produce functioning neurons from human embryonic stem cells
... cell culture and they were, surprisingly, healthy enough to form synapses. These cells will be excellent for doing gene expression studies and biochemical and protein analyses. Suns method prodded human embryonic stem cells to differentiate into neural stem cells, the cells that give rise to neurons. Wh...Genetic analysis finds greater threat in frog-killing fungus
...g from a long history of association that provides enough time for isolates to diverge through mutation and genetic recombination. If the fungus is endemic to a region, the animals in the area would normally be resistant to its destructive effects because they would have co-evolved together. However, biol...Satellite tracking will help answer questions about penguin travels
...s to return to the breeding grounds and still have enough energy to reproduce. Human fisheries competing for the same food could make migration even more difficult for them." The project is led by Dee Boersma, a UW biology professor who for 25 years has headed the Magellanic Penguin Project at...New mechanism links smoking to lung damage
... of molecules up to the size of 1000 Daltons--wide enough to allow exchange of many signaling and messenger molecules, such as ATP and small metabolites that are essential for normal cell sustenance. "We suspect that this mechanism could play a major role in the onset of diseases such as emphysema, which...Why nectar-feeding bats need a 'power drink' to fly
...ay, but even this phenomenal rate was still barely enough to sustain their metabolism when nectar was absent. This underlines how accurately these bats must balance their energy requirements every day and how vulnerable they are to ecological perturbations that might interrupt their fuel supply for even a s...Marijuana component opens the door for virus that causes Kaposi's sarcoma
...oodstream of an average marijuana smoker, could be enough to facilitate infection of skin cells and could even coax these cells into malignancy. While most people are not at risk from Kaposis sarcoma herpes virus (KSHV), researchers say those with lowered immune systems, such as AIDS patients or transpla...First case of successful ovarian tissue transplantation between two, nonidentical sisters
...ay whether this procedure would ever be successful enough to enable a woman to become pregnant successfully and give birth to a live baby. However, the work did give hope to women who had not had an opportunity to freeze either their eggs or their ovarian tissue, and it emphasised the importance of leaving ...Under magnetic force, nanoparticles may deliver gene therapy
...e particle, entered the cell nucleus, and produced enough adiponectin to significantly reduce the proliferation of new cells. In a practical application, such nanoparticles could be magnetically directed into stents, the tiny, expandable metal scaffolds inserted into a patients partially blocked vessels t...New databases put wings on search for bipolar risk genes
...lecting accurate descriptions of patients in large enough numbers to ensure reliable results is costly and time-consuming, he adds. The Bipolar Disorder Phenome Database lets researchers tap into information from two national studies of BD families collected over 20 years through patient surveys and interv...American Chemical Society's Weekly PressPac -- July 25, 2007
...te scientific research. Chemists have not worried enough about the consequences of the molecules that they make, states Roald Hoffmann, who shared the 1981 Nobel Prize for Chemistry. Hoffmann has chosen to address this issue in an usual waytheater. His new play, Shouldve, focuses on the moral and politica...New aerogels could clean contaminated water, purify hydrogen for fuel cells
...tions they're asking is Can you make hydrogen pure enough that it doesn't poison the catalyst"'" Chupas said. "While there's been a big push for hydrogen storage and a big push to make fuel cells, there has not been nearly as big a push to find out where the clean hydrogen to feed all that will come from." ...Insulin grown in plants relieves diabetes in mice; UCF study holds promise for humans
...d the National Institutes of Health confirmed that enough safe anthrax vaccine to inoculate everyone in the United States could be grown inexpensively in only one acre of tobacco plants ...New research identifies anti-viral protein that may predict who might be at risk to develop lupus
...hose at high risk and diagnose the condition early enough to intervene and reverse the disease. Observational and genetic studies of families with high levels of interferon-alpha will also help them to pinpoint the other factors, including the relevant genetic variations that determine why one family member...