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Tag: "patterns" at biology news

New online portal merges vast data on Gulf of Maine ecosystem

... tool will enhance our understanding of biological patterns in the Gulf of Maine, across space and time, and i... for credible gains in our knowledge about how the patterns of life in the Gulf are unfolding." For example, the Atlas can be used for simple analyses, such as...

Low level of extinction during ice age linked to adaptability

...hed by the Geological Society of America. "If the patterns I detected also are true for the modern ice age --...that great ice age by closely examining geographic patterns of evolution and extinction in brachiopods, simple shelled sea creatures that were abundant and well...

Navigating an integrated yeast network

...ect contact. At the simplest level, some recurring patterns of interconnections occur more frequently than exp...the concept of 'network themes' ?recurring complex patterns that encompass multiple occurrences of network motifs ?allows the building of 'thematic maps' of int...

Shift of weather patterns necessitates rethinking of reforestation methods

...te March. A decade or more ago, East Texas weather patterns favored success with this planting strategy. Relat...ngs time to recover from root damage. But weather patterns have changed, Taylor said. "Using a Texas Forest Service analysis of 100 years of weather data, we ...

Researchers unlock mechanism creating jigsaw puzzle-like plant cells

...ch regulate how plant cells grow into interlocking patterns resembling jigsaw puzzle pieces. These proteins tell one part of a cell to grow outward while telling its neighbor to recede or indent itself in a finely tuned biological dance. The results are structures that, despite their delicate appearance and ...

A puzzle piece found in unraveling the wiring of the brain

...viously known to display highly dynamic expression patterns in both time and space, but how they are put at the right time and at the right place remains to be shown. This study answers part of that question. Others who participated in this work include Dr. Mike Crair of BCM, Drs. R. Grace Zhai, Karen L. Sch...

Decoding the logic of olfaction

...cal Institute have succeeded in mapping the unique patterns of neural activity produced by a wide range of odo...stinctive odor perceptions. Because of the complex patterns of receptor inputs in the cortex, it was impossible to predict how odors might be represented in thi...

Genpathway and Baylor College of Medicine Identify New Genes in Breast Cancer

...cal Institute have succeeded in mapping the unique patterns of neural activity produced by a wide range of odo...stinctive odor perceptions. Because of the complex patterns of receptor inputs in the cortex, it was impossible to predict how odors might be represented in thi...

Undesirable expatriates: Preventing the spread of invasive animals

...cean, it's not surprising that animal introduction patterns between Europe and North America mirror immigration patterns. Overall, a higher proportion of European animals entered North America than vice-versa, with introductions peaking in the 19th century and decreasing thereafter. This decline can be attrib...

Marine sponge yields nanoscale secrets

...wafers, using these techniques to create nanoscale patterns of their catalyst. They are learning how to write nanoscale features of semi-conductors on these chip surfaces. A few years ago, Morse and his research group began investigating how nature builds materials from silicon. Silicon is particularly inter...

Multiple-drug resistant gene expression pattern predicts treatment outcome for pediatric leukemia

...s with inferior treatment outcomes than expression patterns associated with resistance to a single drug. "These findings provide new insights into the biological basis of de novo multiple-drug resistance and illuminate potential new targets for overcoming this cause of treatment failure in childhood ALL," exp...

Signs of aging: Scientists evaluate genes associated with longevity

...d on a detailed study to elucidate gene-expression patterns implicated in the aging process. Their results appear online today in the journal Genome Research. Led by Dr. Angela Brooks-Wilson, Senior Scientist at the BC Cancer Agency's Genome Sciences Centre, and Dr. Donald Riddle, Professor of Biology at the...

After a time-shift, mixed signals from the circadian clock

...ays to adjust. This results temporarily in bimodal patterns of electrical activity that are generated by the c...on of about six days--exposed to complex signaling patterns from the circadian clock. The researchers include Henk Albus, Mariska J. Vansteensel, Stephan Miche...

Brain May Be Less Plastic Than Hoped

...eld open, the team focused various grid and circle patterns on the animal's retina, centered on the fovea—a sm...t then depend more on the modification of existing patterns of connectivity, be it subcortical, feedback, or other broad area-to-area connections. Of course, th...

Discovery clarifies role of peptide in biological clock

... synchrony is uncoordinated. This causes irregular patterns of sleep and wake, for example." The study was pu...er on subsequent days so that their daily activity patterns were splitting apart." Herzog and Aton recorded neuron activity from the SCN using a multielectrode...

Designing vaccines by computer

... help scientists to uncover and harness the hidden patterns in the wealth of DNA and protein sequences that mo...esponse by the immune system. They look for common patterns in their sequences or structures and use the information to create a theoretical model of what is ne...

What the eye doesn't see

...des the strongest evidence to date that disruptive patterns do indeed protect insects from detection by birds,...triangular pieces of waterproof card with specific patterns printed on them. By varying the colours, size and location of patterns on the moths the team were ab...

Gov't Creates Gene Database of Normal Human Tissues

...hat share similar biological functions also showed patterns of expression. For example, though the cerebrum and the cerebellum are two distinct parts of the brain, located apart from each other and doing very different jobs, their gene expression profiles reflected their commonality as part of the nervous sys...

Where bacteria get their genes

...tibiotics, it's important to monitor the rates and patterns of lateral gene transfer," said team member Howard Ochman, a UA professor of biochemistry and molecular biophysics and a member of UA's BIO5 Institute. The research also solves a long-standing evolutionary puzzle. Many scientists have argued that dr...

Internet viruses help ecologists control invasive species

...d email programmes, Muirhead and MacIsaac examined patterns of human vector movement to see whether some invaded systems have the potential to develop into invasion hubs. According to Muirhead and MacIsaac: "Some lakes invaded by the spiny water flea may serve as invasion hubs if departing boaters and angler...

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