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REVISTA ELECTRÓNICA DE CIENCIA, TECNOLOGÍA, SOCIEDAD Y CULTURA. ISSN 2174-6850/ 31 años divulgando conocimiento (desde 1988)
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Tags (9027) : technology

NASA's Landsat Data Continuity Mission: New Earth observation satellite launched

11/02/2013 | CIENCIA ON LINE
NASA's Landsat Data Continuity Mission (LDCM) roared into space at 1:02 p.m. EST (10:02 a.m. PST) Monday aboard an Atlas V rocket from Vandenberg Air Force Base in California. The spacecraft carries two instruments, the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS). The...

Lack of energy an enemy to antibiotic-resistant microbes

11/02/2013 | CIENCIA ON LINE
Researchers "cured" a strain of bacteria of its ability to resist an antibiotic in an experiment that has implications for a long-standing public health crisis. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...

Possible genetic clues to organ development, birth defects

11/02/2013 | CIENCIA ON LINE
Using cutting-edge time-lapse photography, researchers have discovered clues to the development of the head at the cellular level, which could point scientists to a better understanding of how organs and birth defects form in humans. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

New details on molecular machinery of cancer

11/02/2013 | CIENCIA ON LINE
New details into the activation of a cell surface protein that has been strongly linked to a large number of cancers and is a major target of cancer therapies have been reported by Berkeley Lab researchers. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/G...

Security risks of extreme weather and climate change

11/02/2013 | CIENCIA ON LINE
A new study, conducted specifically to explore the forces driving extreme weather events and their implications for national security planning over the next decade, finds that the early ramifications of climate extremes resulting from climate change are already upon us and will continue to be...

How you treat others may depend on whether you're single or attached

11/02/2013 | CIENCIA ON LINE
With Valentine's Day looming, many married couples will wish marital bliss for their single friends. At the same time, many singles will pity their coupled friends' loss of freedom. People like to believe that their way of life -- whether single or coupled -- is the best for everyone, especially...

Humans and robots work better together following cross-training; Swapping of roles improves efficiency

11/02/2013 | CIENCIA ON LINE
Spending a day in someone else's shoes can help us to learn what makes them tick. Now the same approach is being used to develop a better understanding between humans and robots, to enable them to work together as a team. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...

Cell circuits remember their history: Engineers design new synthetic biology circuits that combine memory and logic

11/02/2013 | CIENCIA ON LINE
Engineers have created genetic circuits in bacterial cells that not only perform logic functions, but also remember the results, which are encoded in the cell's DNA and passed on for dozens of generations. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...

How blood vessels regroup after stroke

11/02/2013 | CIENCIA ON LINE
Scientists have simulated "robot" cells to study the development of the microvascular systems in the brain. The goal is to find a way to direct the development of vessels that feed oxygen-starved cells in stroke and neurodegenerative disease patients. Fuente :...

Community health workers help type 2 diabetes care

11/02/2013 | CIENCIA ON LINE
Researchers who conducted a clinical trial in American Samoa to test whether community health workers could help adults with type 2 diabetes found that the patients who received the intervention were twice as likely to make a clinically meaningful improvement as those who remained with care only...

Can simple measures of labile soil organic matter predict corn performance?

11/02/2013 | CIENCIA ON LINE
Researchers are characterizing simple, cheap measurements of labile soil organic matter that could predict the performance of corn crops and help farmers optimize their cropping systems. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/H...

Exercise linked with reduced prostate cancer risk in Caucasians but not African-Americans

11/02/2013 | CIENCIA ON LINE
A new study suggests that exercise may reduce Caucasian men's risk of developing prostate cancer. And among Caucasian men who do have prostate cancer, exercise may reduce their risk of having more serious forms of the disease. Unfortunately, the benefits do not seem to apply to African-American...

High blood pressure during pregnancy may signal later heart disease risk

11/02/2013 | CIENCIA ON LINE
High blood pressure during pregnancy — even once or twice during routine medical care — can signal substantially higher risks of heart and kidney disease and diabetes, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...

Tumor blood vessels prevent the spread of cancer cells

11/02/2013 | CIENCIA ON LINE
A lack of the protein endoglin in the blood vessels of tumor-bearing mice enables the spread of daughter tumours, according to researchers. Given that the tumor vasculature constitutes an important barrier to the spread of cancer cells, the team suggests that drugs should be developed to...

Protein 'filmed' while unfolding at atomic resolution

11/02/2013 | CIENCIA ON LINE
Whether Alzheimer’s, Parkinson’s or Huntington’s Chorea – all three diseases have one thing in common: They are caused by misfolded proteins that form insoluble clumps in the brains of affected patients and, finally, destroy their nerve cells. One of the most important questions in the biological...

Birds evolved ultraviolet vision several times

11/02/2013 | CIENCIA ON LINE
Ultraviolet vision evolved at least eight times in birds from a common violet sensitive ancestor finds a new study. All of these are due to single nucleotide changes in the DNA. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

Dogs may understand human point of view

11/02/2013 | CIENCIA ON LINE
Domestic dogs are much more likely to steal food when they think nobody can see them, suggesting for the first time that dogs are capable of understanding a human’s point of view. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/8...

Therapeutic effect of RNAi gene silencing effective in cancer treatment, study suggests

11/02/2013 | CIENCIA ON LINE
A new study shows for the first time that ribonucleic acid interference (RNAi) is effective in the treatment of cancer patients. Harnessing these molecules to silence genes involved in the development and growth of cancer cells is an important step forward in developing a new and more targeted...

When it comes to love, men are the biggest risk takers

11/02/2013 | CIENCIA ON LINE
How far would you go to get the attention of the one you love? According to a recent study it seems that given a romantic opportunity, men are willing to take big risks in getting attention from the opposite sex, and what’s more it’s all down to evolution. Fuente :...

Stem cell breakthrough could lead to new bone repair therapies on nanoscale surfaces

11/02/2013 | CIENCIA ON LINE
Scientists have created a new method to generate bone cells which could lead to revolutionary bone repair therapies for people with bone fractures or those who need hip replacement surgery due to osteoporosis and osteoarthritis The researchers cultured human embryonic stem cells on to the surface...

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