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62,854 articles from ScienceDaily

• FRIDAY 3. FEBRUARY, 2012
• 15:24 Classic portrait of a barred spiral galaxy

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  The NASA/ESA Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073, which is found in the constellation of Cetus (The Sea Monster). Our own galaxy, the Milky Way, is a similar barred spiral, and the study of galaxies such as NGC 1073 helps astronomers learn more about our celestial home.  

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• 15:24 New procedure repairs severed nerves in minutes, restoring limb use in days or weeks

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  American scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, rather than months or years. The team used a cellular mechanism similar to that used by many invertebrates to repair damage to nerve axons.  

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• 15:20 Collective action: Occupied genetic switches hold clues to cells' history

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  If you wanted to draw your family tree, you could start by searching for people who share your surname. Cells, of course, don’t have surnames, but scientists have found that genetic switches called enhancers, and the molecules that activate those switches – transcription factors – can be used in a similar way, as clues to a cell’s developmental history. The study also unveils a new model for how enhancers function.  

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• 15:20 Judder-free videos on the smartphone

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  Overloaded cellular networks can get annoying – especially when you want to watch a video on your smartphone. An optimized Radio Resource Manager will soon be able to help network operators accommodate heavy network traffic.  

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• 15:20 New technology to tackle treatment-resistant cancers

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  Free-flowing cancer cells have been mapped with unprecedented accuracy in the bloodstream of patients with prostate, breast and pancreatic cancer, using a brand new approach, in an attempt to assess and control the disease as it spreads in real time through the body, and solve the problem of predicting response and resistance to therapies. In comparison to a previous generation of systems, the researchers state their test showed a significantly greater number of high-definition circulating tumour cells (HD-CTCs), in a higher proportion of patients, by using a computing-intensive method that enables them to look at millions of normal cells and find the rare cancer cells among them.  

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• 15:20 Schizophrenia: When hallucinatory voices suppress real ones, new electronic application may help

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  When a patient afflicted with schizophrenia hears inner voices something is taking place inside the brain that prevents the individual from perceiving real voices. A simple electronic application may help the patient learn to shift focus.  

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• 15:20 Surface of Mars an unlikely place for life after 600 million year drought, say scientists

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  Mars may have been arid for more than 600 million years, making it too hostile for any life to survive on the planet’s surface, according to researchers who have been carrying out the painstaking task of analyzing individual particles of Martian soil.  

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• 15:18 Can immune cells from healthy people pulverize cancer?

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  Immune cells from healthy individuals can be the new immune cure for cancer. This treatment can kill cancer cells without destroying neighboring cells. The hope is to eradicate cancer for ever.  

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• 15:18 Parasites or not? Transposable elements in DNA of fruit flies may be beneficial

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  Many living organisms suffer from parasites, which use the hosts’ resources for their own purposes. The problem of parasitism occurs at all levels right down to the DNA scale. Genomes may contain up to 80% “foreign” DNA but details of the mechanisms by which this enters the host genome and how hosts attempt to combat its spread are still the subject of conjecture. Nearly all organisms contain pieces of DNA that do not really belong to them.  

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• 15:14 Breastfeeding linked to improved lung function at school-age, especially with asthmatic mothers

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  Breastfeeding is associated with improved lung function at school age, particularly in children of asthmatic mothers, according to a new study.  

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• 15:08 Holding back immunity

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  A ‘gatekeeper’ protein plays a critical role in helping immune cells to sound a warning after encountering signs of tumor growth or infection.  

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• 02:17 Malaria kills nearly twice as many people than previously thought, but deaths declining rapidly

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  Malaria is killing more people worldwide than previously thought -- 1.2 million -- but the number of deaths has fallen rapidly as efforts to combat the disease have ramped up, according to new research. Researchers say that deaths from malaria have been missed by previous studies because of the assumption that the disease mainly kills children under age five.  

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• 02:17 New 'biopsy in a blood test' to detect cancer

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  Scientists and cancer physicians have successfully demonstrated the effectiveness of an advanced blood test for detecting and analyzing circulating tumor cells -- breakaway cells from patients' solid tumors -- from cancer patients. The findings show that the highly sensitive blood analysis provides information that may soon be comparable to that from some types of surgical biopsies.  

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• 02:16 How to tell apart the forgetful from those at risk of Alzheimer’s disease

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  It can be difficult to distinguish between people with normal age-associated memory loss and those with amnestic mild cognitive impairment (aMCI). However people with aMCI are at a greater risk of developing Alzheimer’s disease (AD), and identification of these people would mean that they could begin treatment as early as possible. New research shows that specific questions, included as part of a questionnaire designed to help diagnose AD, are also able to discriminate between normal memory loss and aMCI.  

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• 02:15 U. S. Counties with thriving small businesses have healthier residents

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  U.S. counties and parishes with a greater concentration of small, locally-owned businesses have healthier populations — with lower rates of mortality, obesity and diabetes — than do those that rely on large companies with “absentee” owners, according to a national study.  

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• THURSDAY 2. FEBRUARY, 2012
• 22:48 Football findings suggest concussions caused by series of hits

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  A two-year study of high school football players suggests that concussions are likely caused by many hits over time and not from a single blow to the head, as commonly believed.  

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• 22:48 Google Earth ocean terrain receives major update

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  Internet information giant Google updated ocean data in its Google Earth application this week, reflecting new bathymetry.  

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• 22:48 New RNA-based therapeutic strategies for controlling gene expression

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  Small RNA-based nucleic acid drugs represent a promising new class of therapeutic agents for silencing abnormal or overactive disease-causing genes, and researchers have discovered new mechanisms by which RNA drugs can control gene activity.  

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• 22:48 Research ethics: Coercive citations in academic publishing

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  Scientists have examined the unethical practices of some journal publications, articulating results from their research to show that some editors coerce authors into adding unnecessary citations to articles in the same journal that is considering publishing the submitted work. Journal editors want to increase the number of times articles within their journals are cited by researchers – because it raises the journal ranking and is used to make claims of prestige and importance.  

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• 22:48 Scientists coax shy microorganisms to stand out in a crowd

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  Scientists have advanced a method that allowed them to single out a marine microorganism and map its genome even though the organism made up less than 10 percent of a water sample teeming with many millions of individuals from dozens of identifiable groups of microbes.  

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• 22:45 A market solution for the Falkland Islands

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  Should the disputed Falkland Islands be returned to Argentina? Experts write that a market solution could help Britain and Argentina avoid another war.  

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• 22:45 New technique successfully dissolves blood clots in brain and lowers risk of brain damage after stroke, study suggests

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  Neurologists report success with a new means of getting rid of potentially lethal blood clots in the brain safely without cutting through easily damaged brain tissue or removing large pieces of skull.  

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• 22:45 Triglyceride levels predict stroke risk in postmenopausal women

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  The traditional risk factors for stroke – such as high cholesterol – are not as accurate at predicting risk in postmenopausal women as previously thought. Instead, researchers say doctors should refocus their attention on triglyceride levels to determine which women are at highest risk of suffering a devastating and potentially fatal cardiovascular event.  

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• 21:17 DNA test that identifies Down syndrome in pregnancy can also detect trisomy 18 and trisomy 13

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  A recent study shows that a new DNA test that identifies Down syndrome in pregnancy can also detect trisomies 18 and 13.  

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• 21:17 Elevated glucose associated with undetected heart damage

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  A new study suggests that hyperglycemia injures the heart, even in patients without a history of heart disease or diabetes. The high-sensitivity test they used detected levels of cTnT tenfold lower than those found in patients diagnosed with a heart attack.  

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