Inverse in Biological News

Drinking 100 percent fruit juice is associated with lower risk of obesity and metabolic syndrome

... estimated by homeostasis model assessment, HOMA). The researchers noted an inverse association between level of juice intake (oz/day) and these parameters. ... sugar intakes). After taking these lifestyle factors into account, the inverse relationship between 100% fruit juice consumption and metabolic syndrome ...

First Science from the Compact Light Source: A miniature synchrotron for your home lab

... of the Compact Light Source (CLS), a miniature synchrotron which uses inverse Compton scattering to produce high-intensity, tunable, near-monochromatic ... stored in a high-finesse cavity. Each collision produces x-rays through inverse Compton scattering. The entire x-ray source fits in a 10x25 ft room ...

Selenium may prevent high risk-bladder cancer

... of 1,108 individuals from the general population. Findings showed an inverse association between selenium and bladder cancer among women, some smokers ... positive bladder cancer. In the entire study population, there was no inverse association between selenium and bladder cancer, but women (34 percent), ...

Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs

... of the polymers they are creating. Siegwart and colleagues used ATRP in inverse miniemulsion to make nanogels with a uniform network of cross-linked ... postdoctoral associate in the Matyjaszewski lab who developed ATRP in inverse miniemulsion. The new nanogels, which are nontoxic and biodegradable, ...

August 2009 Geology and GSA Today media highlights

... of limestones contains sulfur isotopes in pyrite that are consistently heavier than the sulfur isotopes in co-deposited sulfate -- which is the inverse of the normally observed trend resulting from bacterial sulfate reduction. This is the first documented occurrence of sulfide that is consistently ...

Lyncean Technologies Inc. receives $1.2 M from NCRR to develop new imaging technique

... storage ring colliding repeatedly with an opposing infrared light pulse stored in a high-finesse cavity. Each collision produces x-rays through inverse Compton scattering. The entire x-ray source fits in a 10x25 ft room similar in size to those used for Magnetic Resonance Imaging in medical clinics. ...

Vitamin D levels linked to asthma severity

... more likely to have several markers of allergy, including dust-mite sensitivity. "To our knowledge this is the first study to demonstrate an inverse association between circulating levels of vitamin D and markers of asthma severity and allergy," wrote Drs. Celedn and Litonjua "While it is ...

Vitamin D deficiency related to increased inflammation in healthy women

... of serum TNF-α, an inflammatory marker, were found in women who had insufficient vitamin D levels. This study is the first to find an inverse relationship between vitamin D levels and concentrations of TNF-α in a healthy, non-diseased population. This may explain the vitamin's role in ...

New equation of state of seawater

... situ temperature is stored in these databases), it is the new Absolute Salinity that will be used in journal publications, numerical ocean models and inverse models (as temperature is not used now, but rather, potential temperature for these purposes). The main reason for adopting the new salinity variable ...

Corralling the carbon cycle

... during the growing season, which is important for using the compound to trace photosynthesis. "The intriguing outcome of this study is that an inverse analysis of the atmospheric carbonyl sulfide measurements may be used to quantify the carbon released during plant respiration," remarked Berry. ...

UC Davis researchers discover a key to aggressive breast cancer

... a loss of the Lig-1 protein and its levels were, on average, 33 percent lower in tumor tissue versus healthy breast tissue. "There was a clear inverse relationship between Lig-1 and HER2," said Sweeney. "When we depleted Lig-1, cancer cells grew almost 50 percent faster, while the opposite occurred ...

Duke team explains a longtime visual puzzler in new way

... director of the Duke Center for Cognitive Neuroscience. "We decided to look at the effect empirically, based on another visual problem, called the inverse optics problem, which is that the image on your retina can't be directly, logically related to what is happening in the world." Objects moving at ...

Penn presents inaugural symposium on applied mathematics and computational science

... biology, bioinformatics and genomics, as well as more traditional applied-math fields like materials science, fluid mechanics, numerical analysis, inverse scattering, finance and condensed matter physics. Additional information is available from Charles L. Epstein, professor of mathematics and of ...

Kalyon wins Society of Plastics Engineers' 2008 Research Award

... of polymers and concentrated polymeric suspensions such as the adjustable gap slit rheometer and the squeeze flow rheometry, methodologies for the inverse problem solution for parameters of constitutive equations and wall slip, and mathematical models for processing and manufacturing. In the course ...

Eat oily fish at least once a week to protect your eyesight in old age

... with less than once a week are 50% less likely to have wet AMD. There was no benefit from consumption of non oily white fish. There was a strong inverse association between levels of DHA and EPA and wet AMD. People in the top 25% of DHA and EPA levels (300 mg per day and above) were 70% less likely to ...

Where is your soil water? Crop yield has the answer

... management. One of the alternative methods designed to rapidly and economically estimate plant-available water capacity for a field is the Simple inverse Yield Model (SIYM). The SIYM first simulates crop yield using a water-budgeting algorithm and growing season weather conditions such as radiation, ...

Scientists reveal the lifestyle evolution of wild marine bacteria

... able to combine both molecular data (DNA sequences) with ecological data in a single mathematical framework, said Alm. This allowed us to solve the inverse problem of taking samples of organisms from different environments and figuring out their underlying habitats. In essence, we modeled the evolution ...

Dead clams tell many tales

... then subjected the data to a meta-analysis, a statistical method for gleaning large patterns from many individual studies. Her analysis revealed an inverse relationship between the extent of human impact and how well collections of dead shells reflected the current inhabitants of an ecosystem. "This ...

Expecting an afternoon nap can reduce blood pressure

... studies on siestas have found that this practice may slightly increase the risk of heart attack, newer and more controlled studies have shown an inverse relationship between siesta taking and fatal heart attacks. In a recent epidemiological study of 23,000 people in Greece, those who regularly took ...

Naturally-occurring apple compounds reduce risk of pancreatic cancer

... foods rather than in broader food groups, for example, in apples rather than in all fruit, notes the research study. Previously, the most consistent inverse association was found between flavonols, especially quercetin in apples and lung cancer, as pointed out in this study. No other epidemiological ...

Antioxidant overload may underlie a heritable human disease

... reducing equivalents, has been often implicated in numerous cardiac and other diseases, Benjamin noted. However, the possibility remained that an inverse imbalance could provoke reductive stress, with the potential for similar deleterious effects. Indeed, reductive stress had been demonstrated in ...

Stability of mRNA/DNA and DNA/DNA duplexes modulates mRNA transcription

... correlation was observed between the mRNA level and the stability of DNA/DNA and mRNA/DNA duplexes of both exons and introns. In contrast, an inverse relationship exists between mRNA levels and stability of the region near 3?end of genes. mRNA levels increase with decreasing thermodynamic stability ...

Inflammation may play role in metastasis of prostate cancer

... Maspin is repressed by a series of events triggered by tumor inflammatory cells, with the result that prostate cancer cells spread. "An excellent inverse correlation between IKKa activation and Maspin production was detected, such that advanced prostate cancer cells contain high amounts of activated ...

Pair of microRNA molecules controls major oncogene in most common leukemia

... of Molecular Virology, Immunology and Medical Genetics at Ohio State University’s Comprehensive Cancer Center. "We have found a direct inverse association between expression of miR-29 and miR-181 and that of the TCL1 oncogene," he said. "It works in both directions. High expression of these ...

Heat-shock protein vaccine reduces alveolar bone loss

... gingivalis HSP60, and experimental alveolar bone loss was induced by infection with multiple periodontopathogenic bacteria. There was a very strong inverse relationship between post-immune anti-P. gingivalis HSP immunoglobulin G levels and the amount of alveolar bone loss induced by either P. gingivalis ...

Possible brain hormone may unlock mystery of hibernation

... prior to hibernation and remained low throughout the inactive state. Hibernation ended after blood HPc levels rose. Further study revealed an inverse relationship between HPc levels in the blood and brain. While HPc levels dipped in blood, the putative hormone rose dramatically in cerebral spinal ...

Genetically engineered mosquitoes show resistance to dengue fever virus

... the researchers found a way to control and speed up the process. They accomplished this by cloning a section of the virus' RNA and injected two inverse copies of it into mosquito embryos. The copies formed a double-stranded RNA, which, as expected, bound with dicer-2 and was chopped up. The virus ...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

... "Spatiotemporal data mining extracts changing spatial patterns from continuous data flow. It is a rapidly growing field, which includes inverse physics, machine learning and human-computer interaction," Cai said. ...