Brightsurf Science News & Current Events

November 08, 2018
Skin ages when the main cells in the dermis lose their identity and function
A study in mice done at IRB Barcelona and CNAG-CRG explains that dermal fibroblasts lose their cell identify over time and with it their capacity to produce and secrete collagen and other proteins.

Is throwing rice at weddings bad for birds? (video)
Many people believe that throwing rice at weddings is harmful to wild birds.

Patients with untreated hearing loss incur higher health care costs over time
Older adults with untreated hearing loss incur substantially higher total health care costs compared to those who don't have hearing loss -- an average of 46 percent, totaling $22,434 per person over a decade, according to a new study led by researchers at the Johns Hopkins Bloomberg School of Public Health.

Untreated hearing loss associated with increased risk of hospitalization, other health conditions
Two studies and two commentaries examine the association of untreated hearing loss with health care use, costs and other health conditions.

Men focused on muscle building struggle with binge drinking and other problems
Boys and young men who are obsessed with building muscle have more mental health issues than researchers and healthcare professionals have previously recognized.

Air pollution causes increased emergency department visits for heart and lung disease
Outdoor air pollution is a major health threat worldwide. New research by George Mason University found that exposure to certain air pollutants is linked to increased emergency department visits for respiratory and cardiovascular diseases.

Amazon forests failing to keep up with climate change
New research has assessed the impact of global warming on thousands of tree species across the Amazon to discover the winners and losers from 30 years of climate change.

Link between autoimmune, heart disease explained in mice
Autoimmune diseases such as psoriasis, lupus and rheumatoid arthritis more than double the risk of cardiovascular disease.

Most complete study on Europe's greatest Hadrosaur site published
The Basturs Poble site (Lleida) is the most important site in Europe when it comes to hadrosaur remains.

Caution, tasteless! Viruses and antimicrobially resistant bacteria in foods
Salmonella in eggs, noroviruses in frozen berries, hepatitis E viruses in domestic pigs and wild boar and resistant bacteria in meat: pathogenic microorganisms are one of the most common causes of foodborne illnesses.

Recessive genes explain only small fraction of undiagnosed developmental disorders
The Deciphering Developmental Disorders study has discovered that only a small fraction of rare, undiagnosed developmental disorders in the British Isles are caused by recessive genes.

Unlocking the secrets of metal-insulator transitions
Using an X-ray technique available at the National Synchrotron Light Source II (NSLS-II), scientists found that the metal-insulator transition in the correlated material magnetite is a two-step process.

Gene signature discovery may predict response to immune therapy
Scientists led by Dr. Daniel De Carvalho at Princess Margaret Cancer Centre have discovered a gene signature biomarker that may predict which patients will respond -- or not -- to immune therapy.

Otago study calls for sugar tax
People who drink sugary beverages are more likely to eat fast food and confectionery and less likely to make healthy dietary choices, University of Otago research has found.

Cranking up the power setting may help some who use prosthetics
Amputees who use powered prosthetic ankles may be able to avoid the energetic costs typically associated with prosthetics by cranking up the power provided by their devices.

Breast milk & babies' saliva shape oral microbiome
Newborn breastfed babies' saliva combines with breastmilk to release antibacterial compounds that help to shape the bacterial communities (microbiota) in babies' mouths, biomedical scientists have found.

'Potato gene' reveals how ancient Andeans adapted to starchy diet
DNA analyses show that ancient populations of the Peruvian highlands adapted to the introduction of agriculture and an extreme, high-altitude environment in ways distinct from other global populations.

Factors affecting turbulence scaling
Fluids exhibiting scaling behavior can be found in diverse physical phenomena, observed when these fluids reach a critical point.

Woodlice back on top, slugs deterred by drought
The 4th edition of the Dutch Soil Animal Days saw 856 'citizen scientists' comb through more than 200 gardens and parks to find some 7,500 soil creatures.

Unique study shows how bats maneuver
For the first time, researchers have succeeded in directly measuring the aerodynamics of flying animals as they maneuver in the air.

Pilot study suggests pedal desks could address health risks of sedentary workplace
A recent pilot study by kinesiologists at the University of Massachusetts Amherst found that pedaling while conducting work tasks improved insulin responses to a test meal.

Biodiversity draws the ecotourism crowd
Nature -- if you support it, ecotourists will come. Managed wisely, both can win.

New UMBC research suggests global reforestation efforts need to take the long view
Based on data from Costa Rica spanning 1947 -- 2014, the authors of a new study found 50 percent of secondary forest patches were re-cleared within 20 years, and 85 percent were re-cleared within 54 years.

Genetic 'whodunnit' for cancer gene solved
Long thought to suppress cancer by slowing cellular metabolism, the protein complex AMPK also seemed to help some tumors grow, confounding researchers.

EEG identifies brain signal that correlates with depression and anxiety
Researchers have long known that two brain structures, the amygdala and hippocampus, are involved with processing of emotion and mood -- but not exactly how.

Conversion 'therapy' begins at home
A study by the Family Acceptance Project (FAP) at San Francisco State University has found that attempts by parents and religious leaders or therapists to change the sexual orientation of LGBT adolescents ('conversion therapy') contribute to multiple health and adjustment problems in young adulthood.

Warming waters caused rapid -- and opposite -- shifts in connected marine communities
Two connected marine ecosystems -- the Eastern English Channel and Southern North Sea -- experienced big and opposite changes in their fish communities over a 30-year period, according to researchers who report their findings in Current Biology on Nov.

UCI scientists simplify and accelerate directed evolution bioengineering method
In a study published today in the journal Cell, University of California, Irvine researchers reported that they have accelerated and simplified directed evolution by having live cells do most of the heavy lifting.

Spacetime -- a creation of well-known actors?
Most physicists believe that the structure of spacetime is formed in an unknown way in the vicinity of the Planck scale, i.e. at distances close to one trillionth of a trillionth of a metre.

How many calories do you burn? It depends on time of day
Researchers reporting in Current Biology on Nov. 8 have made the surprising discovery that the number of calories people burn while at rest changes with the time of day.

Marine Protected Areas overlook a large fraction of biodiversity hotspots
Around 75 percent of marine biodiversity in Finnish waters is left unprotected, reveals a performance assessment of the country's current Marine Protected Area network.

Revealing the inner working of magnetic materials
Björn Alling, researcher in theoretical physics at Linköping University, has, together with his colleagues at the Max-Planck-Institut für Eisenforschung in Düsseldorf, completed the task given to him by the Swedish Research Council in the autumn of 2014: Find out what happens inside magnetic materials at high temperatures.

Rainforest destruction from gold mining hits all-time high in Peru
Small-scale gold mining has destroyed more than 170,000 acres of primary rainforest in the Peruvian Amazon in the past five years, according to a new analysis by scientists at Wake Forest University's Center for Amazonian Scientific Innovation (CINCIA).

Targeted radiation provides option for kids with difficult-to-treat liver cancer
Targeted tumor radiation provides a feasible treatment option for children with difficult-to-treat liver cancer, according to a new study published today in the journal Pediatric Blood and Cancer.

New decision support tool improves discharge outcomes
In an effort to lessen readmission risk after discharge and achieve the best possible outcomes for patients, hospital-based clinicians are more intentionally planning discharge of those who require post-acute care (PAC).

Rushing kids to specialize in one sport may not be best path to success
It may be tempting for parents or coaches to urge young children to specialize in one sport early on to help maximize their chance at making it to the big leagues, but that might not be the best path to success.

Replaying the tape of life: Is it possible?
A review published in the Nov. 9 issue of Science explores the complexity of evolution's predictability in extraordinary detail.

Neurons that fire together, don't always wire together
As the adage goes 'neurons that fire together, wire together,' but a new paper published today in Neuron demonstrates that, in addition to response similarity, projection target also constrains local connectivity.

'Nested sequences': An indispensable mechanism for forming memories
A research team from CNRS, Université PSL, the Collège de France and Inserm has just lifted part of the veil surrounding brain activity during sleep.

Moving the motivation meter
Rats given the drug that reduced dopamine were much less likely to work for preferred morsels of food.

What do metastatic cancer cells have in common with sharks?
IBS-CSLM researchers in collaboration with researchers from several international institutes in the US, the Netherlands, and Poland have reported that when cancer cells become invasive (metastatic), they start behaving in 'predatory' ways.

Catalyzing CO2
One day in the not-too-distant future, the gases coming from power plants and heavy industry, rather than spewing into the atmosphere, could be captured and chemically transformed from greenhouse gases like carbon dioxide into industrial fuels or chemicals thanks to a system developed by Harvard researchers that can use renewable electricity to reduce carbon dioxide into carbon monoxide -- a key commodity used in a number of industrial processes.

Report finds inequity may slow progress in preventing child pneumonia and diarrhea deaths
A new report finds health systems are falling woefully short of ensuring the most vulnerable children have sufficient access to prevention and treatment services in 15 countries that account for 70% of the global pneumonia and diarrhea deaths in children under five.

Materials scientist creates fabric alternative to batteries for wearable devices
A major factor holding back development of wearable biosensors for health monitoring is the lack of a lightweight, long-lasting power supply.

See-through film rejects 70 percent of incoming solar heat
MIT engineers have developed a heat-rejecting film that could be applied to a building's windows to reflect up to 70 percent of the sun's incoming heat.

Researchers simplify tiny structures' construction drip by drip
Princeton researchers explore methods of using carefully controlled droplets as a way to make soft, biomimetic structures.

Harvesting renewable energy from the sun and outer space at the same time
Scientists at Stanford University have demonstrated for the first time that heat from the sun and coldness from outer space can be collected simultaneously with a single device.

Tropical Cyclone Alcide's rainfall observed by GPM Satellite
The Global Precipitation Measurement mission or GPM core satellite passed over the Southern Indian Ocean and analyzed the rainfall occurring in pre-season Tropical Cyclone Alcide.

Embryos remember the chemicals that they encounter
A new study shows that embryonic cells retain a memory of the chemical signals to which they are exposed.

Anopheles mosquitoes could spread Mayaro virus in US, other diverse regions
Mosquitoes of the genus Anopheles are well known as primary vectors of malaria.

How do peptides penetrate cells? Two sides of the same coin
The research team of Pavel Jungwirth from IOCB Prague has discovered a previously unknown mechanism by which short peptides are able to penetrate cells and, in principle, could serve as carriers of drug molecules.

Prostate cancer radiotherapy more precisely targeted with nuclear medicine imaging
A nuclear medicine imaging procedure can pinpoint prostate cancer with superior accuracy, allowing more precisely targeted treatment, according to new research featured in the November 2018 issue of The Journal of Nuclear Medicine.

High-performance solar cells: Physicists grow stable perovskite layers
Crystalline perovskite cells are the key to cutting-edge thin-film solar cells.

ThyroSeq test helps patients avoid unnecessary diagnostic thyroid surgery, study shows
UPMC-developed genetic test helps avoid preventable surgery, curb health care costs.

New marker provides insights into the development of type 2 diabetes
Small chemical changes in the DNA building blocks, which may be influenceable by lifestyle factors, can reduce the amount of IGFBP2.

Military risk factors for dementia
In recent years, there has been growing discussion to better understand the pathophysiological mechanisms of traumatic brain injury and post-traumatic stress disorder and how they may be linked to an increased risk of neurodegenerative diseases including Alzheimer's disease in veterans.

Brain signature of depressed mood unveiled in new study
New research from UC San Francisco has identified a common pattern of brain activity that may be behind low mood feelings, particularly in people who have a tendency towards anxiety.

Loss is more: Today's budding yeasts shed traits from their 400-million-year-old ancestor
Budding yeasts are common in nearly every environment on the planet, perhaps best known for the achievements of a handful of species in the beer, wine, and bread industries or, less attractively, sending people to the drug store to treat infections.

Species' longevity depends on brain cell numbers
Scientists have thought that the main determinant of maximal longevity in warm-blooded animals -- which varies from as little as 2 to as many as 211 years -- is a species' metabolic rate, which is inversely related to body size.

A major role for a small organ in the immune response during pregnancy
The immune system of a pregnant woman is altered during pregnancy, but not in the way previously believed, according to a study at Linköping University.

Technique for preventing extraction of finger vein patterns from photographs
Professor Isao Echizen's group of National Institute of Informatics (NII/Tokyo, Japan) has developed a technique for preventing the extraction of finger vein patterns from photographs.

We now know how RNA molecules are organized in cells
With their new finding, Canadian scientists urge revision of decades-old dogma on protein synthesis

Can stimulating the brain treat chronic pain?
For the first time, researchers at the UNC School of Medicine showed they could target one brain region with a weak alternating current of electricity, enhance the naturally occurring brain rhythms of that region, and significantly decrease symptoms associated with chronic lower back pain.

A new lens for microscopy has been developed
BFU physicists suggested a new model of a variable focus lens called a mini transfocator.

VTCRI scientists find that sensory neurons can be used to discover therapies for ALS
Scientists have shown that mutations in specific genes that destroy motor neurons and thereby cause the devastating effects of amyotrophic lateral sclerosis-- also known as ALS or Lou Gehrig's disease -- also attack sensory neurons.

Broad genome analysis shows yeasts evolving by subtraction
An unprecedented comparison of hundreds of species of yeasts has helped geneticists brew up an expansive picture of their evolution over the last hundreds of millions of years, including an analysis of the way they evolved individual appetites for particular food sources that may be a boon to biofuels research.

Powerful method probes small-molecule structures
Small molecules -- from naturally occurring metabolites and hormones to synthetic medicines and pesticides -- can have big effects on living things.

Watch a 3D-engineered human heart tissue beat
Researchers have developed a way to grow human heart tissue that can serve as a model for the upper chambers of the heart, known as the atria.

Gatekeeper for poison capsule
Researchers decode the toxin complex of the plague bacterium and other germs.

The secret behind coral reef diversity? Time, lots of time
One of the world's premier diving destinations owes its reputation as a hot spot of marine biodiversity to being undisturbed over millions of years, according to a study led by UA ecologists.

Social media use increases depression and loneliness
Facebook, Snapchat, and Instagram may not be great for personal well-being.

Explaining happiness
It is widely believed that each person finds the source of happiness within themselves and nowhere else.

Aging a flock of stars in the Wild Duck Cluster
The way they move belies the true ages of the almost 3,000 stars populating one of the richest star clusters known.

Do kitchen items shed antimicrobial nanoparticles after use?
In a new paper, scientists from NIST, FDA and CPSC describe how they simulated knife motion, washing and scratching on bacteria-fighting, nanosilver-infused cutting boards to see if consumer use affects nanoparticle release.

When low-income families can meet their basic needs, children are healthier
A series of reports from five cities across the US found that young children and their parents are healthier when they are able to afford basic needs.

Healing kidneys with nanotechnology
In new research appearing in the journal Nature Biomedical Engineering, Hao Yan and his colleagues at the University of Wisconsin-Madison and in China describe a new method for treating and preventing Acute Kidney Injury.

UCLA researchers and partners work with sushi restaurants to reduce seafood fraud
A new monitoring project involving UCLA researchers and partners aims to take 'fake sushi' off Los Angeles diners' plates.

Failing heart cells trigger self-protection mechanism
An unexpected finding that links a structural heart protein to gene regulation following heart stress suggests potential new avenues for developing heart failure therapies.

Biomimetics: The chemical tricks of our blood
Biomolecules such as hemoglobin or chlorophyll are difficult to study.

Blue light can reduce blood pressure
Exposure to blue light decreases blood pressure, reducing the risk of developing cardiovascular disease, a new study from the University of Surrey and Heinrich Heine University Dusseldorf in collaboration with Philips reports.

UK scientists opening up access to science through DIY equipment
Scientists at the University of Sussex have developed a piece of hardware to demonstrate how our brains function, as part of a growing range of equipment which uses DIY and 3D printable models to open up access to science education.

Bees on the brink
Using an innovative robotic platform to observe bees' behavior, Harvard researchers showed that, following exposure to neonicotinoid pesticides -- the most commonly-used class of pesticides in agriculture -- bees spent less time nursing larvae and were less social that other bees.

New ranking method could help hotels to maximize their revenue
Researchers from the University of Portsmouth have devised a new method to rank hotels more accurately.

What could cause the Mississippi Bight to become hypoxic?
A recent article published in Continental Shelf Research explores aspects of the environmental conditions that can potentially lead to hypoxia in the Mississippi Bight region of the northern Gulf of Mexico.

Novel strategy appears to protect retina when disease reduces oxygen
An enzyme known to help our liver get rid of ammonia also appears to be good at protecting our retina, scientists report.

Pore size alone does not matter when biological nanopores act as sugar chain biosensors
Protein nanopores can be found naturally in cell membranes, and act as biological gateways.

Exploiting epigenetic variation for plant breeding
Epigenetic changes can bring about new traits without altering the sequence of genes.

Traditional glaucoma test can miss severity of disease
The most common test for glaucoma can underestimate the severity of the condition by not detecting the presence of central vision loss, also known as macular degeneration, according to a new Columbia University study.

Online labor platforms offer growing alternative to traditional offshoring
Online labor platforms that connect freelance workers and clients around the world are emerging as an alternative to traditional offshoring, according to new Oxford University research.

Monash scientists shine light on minute peptide changes affecting immune system
Researchers have made important insights into the link between genetic diversity and the intricate changes in peptides bound to human leukocyte antigen molecules -- which help the immune system identify foreign invaders such as viruses and bacteria.

Molecular inhibition gets cells on the move
Osaka University researchers revealed that two molecules, PTEN and PIP3, mutually inhibit each other to ensure their exclusive distribution at opposite ends of motile cells.

Can't sleep? Fruit flies and energy drinks offer new clues
Like humans, fruit flies are active during the day, sleep at night and have similar sleep characteristics.

Researchers generate plants with enhanced drought resistance without penalizing growth
Extreme drought is one of the effects of climate change that is already being perceived.

New magnetically controlled thrombolytic successfully passed preclinical testing
New anti-thrombosis drug based on magnetite nanoparticles developed at ITMO University was successfully tested on animals.

Florida monarch butterfly populations have dropped 80 percent since 2005
A 37-year survey of monarch populations in North Central Florida shows that caterpillars and butterflies have been declining since 1985 and have dropped by 80 percent since 2005.

A burst of 'synchronous' light
Excited photo-emitters can cooperate and radiate simultaneously, a phenomenon called superfluorescence.

Study finds new single-dose antibiotic safe and effective for uncomplicated gonorrhea
A phase 2 clinical trial led by Stephanie N. Taylor, MD, Professor of Medicine and Microbiology in the Section of Infectious Diseases at LSU Health New Orleans School of Medicine, has found that a new antibiotic effectively treats uncomplicated urogenital and rectal gonorrhea infections in a single oral dose.

Combination chemotherapy and immunotherapy effective in Phase II leukemia study
A combination of the standard-of-care chemotherapy drug known as azacitidine, with nivolumab, an immune checkpoint inhibitor, demonstrated an encouraging response rate and overall survival in patients with relapsed or refractory acute myeloid leukemia (AML) according to findings from a Phase II study at The University of Texas MD Anderson Cancer Center.

Don't stare! Monkey gaze study shows dopamine's role in response inhibition
University of Tsukuba researchers revealed the importance of the brain's dopaminergic system for inhibiting already-planned actions.

A newly discovered, naturally low-caffeine tea plant
Tea drinkers who seek the popular beverage's soothing flavor without its explosive caffeine jolt could soon have a new, naturally low-caffeine option.

Top 10 chemistry start-ups
Starting a new chemistry-based company is one part discovery, one part risk.

Purdue's giant leap toward personalized medicine helps eyes drain themselves
Purdue University researchers created a new smart drainage device to help patients with glaucoma, a leading cause of blindness in the world, as they try to save their eyesight.

Brain learns to recognize familiar faces regardless of where they are in the visual field
A Dartmouth study finds that recognition of faces varies by where they appear in the visual field and this variability is reduced by learning familiar faces through social interactions.

Double whammy for grieving spouses with sleep problems
Sleep disturbances have a strong negative impact on the immune system of people who have recently lost a spouse, reports a new study.

Researchers closer to gonorrhea vaccine after exhaustive analysis of proteins
In a study of proteins historic in its scope, researchers have pushed closer both to a vaccine for gonorrhea and toward understanding why the bacteria that cause the disease are so good at fending off antimicrobial drugs.

CWRU-Led study triggers change in WHO treatment guidelines for lymphatic filariasis
Researchers from Case Western Reserve University School of Medicine have shown that a single 'cocktail' of three pill-based anti-parasite medications is significantly more effective at killing microscopic larval worms in people diagnosed with lymphatic filariasis, commonly known as elephantiasis, than other standard two-drug combinations previously used in the global effort to eliminate this infectious disease.

Flipped classroom enhances learning outcomes in medical certificate education
The quality of medical certificates written by students of medicine was better when they were taught by using the flipped classroom approach instead of traditional lecturing.

Ragweed may expand its range northward with climate change
A new predictive model developed by an ecologist at the University of Massachusetts Amherst and a climate scientist at the University of Washington suggests that climate change may allow common ragweed to extend its growing range northward and into major northeast metro areas, worsening conditions for millions of people with hay fever and asthma.

Yellowstone streams recovering thanks to wolf reintroduction
In the first study of its kind, research by Oregon State University scientists shows that the return of large terrestrial carnivores can lead to improved stream structure and function.

Millions in danger of food insecurity due to severe Caribbean droughts
Climate change is impacting the Caribbean, with millions facing increasing food insecurity and decreasing freshwater availability as droughts become more likely across the region, according to new Cornell University research in Geophysical Research Letters.

Brain activity pattern may be early sign of schizophrenia
MIT neuroscientists have identified a pattern of brain activity that is correlated with development of schizophrenia, which they say could be used as marker to diagnose the disease earlier.

Mouse model for diabetic kidney disease suggests role for immune and inflammatory pathways
A new mouse model accurately mimics diabetic kidney disease in humans, suggesting new approaches for treatment.

Study demonstrates that long-term follow up in a trauma patient population is achievable
Achieving high follow-up rates for a difficult-to-track violently injured emergency department population is feasible.

Re-inventing the hook
Cognitive biologists and comparative psychologists from the University of Vienna, the University of St Andrews and the University of Veterinary Medicine Vienna around Isabelle Laumer and Alice Auersperg studied hook tool making for the first time in a non-human primate species -- the orangutan.

Radiation therapy advances extend, improve lives of patients with anal cancer, studies find
Two recent studies find advances in radiation therapy are helping to prolong or improve the lives of people with anal cancer, including those whose cancer has advanced to stage IV.

Cell behavior, once shrouded in mystery, is revealed in new light
Previously, in order to study cell membranes, researchers would often have to freeze samples.

Brexit echo chambers on Twitter reflect in-person conversations, study finds
Social media echo chambers may reflect real-life conversations that are linked to the geographic locations of users, according to new research.

Culture may explain why brains have become bigger
A theory called the cultural brain hypothesis could explain extraordinary increases in brain size in humans and other animals over the last few million years, according to a study published in PLOS Computational Biology by Michael Muthukrishna of the London School of Economics and Political Science and Harvard University, and colleagues at the University of British Columbia and Harvard University.

Study tracks severe bleaching events on a Pacific coral reef over past century
A new study from the Woods Hole Oceanographic Institution (WHOI), has uncovered the history of bleaching on a reef in the epicenter of El Nino, revealing how some corals have been able to return after facing extreme conditions.

Tiny footprints, big discovery: Reptile tracks oldest ever found in grand canyon
UNLV geologist Stephen Rowland discovered that a set of 28 footprints left behind by a reptile-like creature 310 million years ago are the oldest ever to be found in Grand Canyon National Park.

Eye contact reduces lying
A new study from the University of Tampere, Finland, found that eye contact can make us act more honestly.

One million years of precipitation history of the monsoon reconstructed
With its wind and precipitation patterns, the South Asian Monsoon influences the lives of several billion people.

Creating better devices: The etch stops here
A team of multi-disciplinary scientists and engineers at the University of Illinois at Urbana-Champaign have discovered a new, more precise, method to create nanoscale-size electromechanical devices.

A buzz-worthy surprise during the total solar eclipse
Previous research conducted on bee behavior notes that bees commonly fly slower at dusk and return to their colonies at night.

New tool to predict which plants will become invasive
New research from the University of Vermont provides insight to help predict which plants are likely to become invasive in a particular community.

Why modest goals are so appealing
Study finds that people feel it's easier to achieve a small incremental goal than to maintain the status quo.

Investigational urate elevation does not appear to raise hypertension risk
A study from a group of Massachusetts General Hospital investigators may reduce the concern that elevating levels of urate, an approach being investigated to treat several neurodegenerative disorders, could increase the risk of hypertension.

Some of retina's light-sensing cells may have ancient roots
Scientists at Johns Hopkins Medicine say they have identified what may be an ancient light-sensing mechanism in modern mouse retinal cells.

Common allergen, ragweed, will shift northward under climate change
The first study of common ragweed's future US distribution finds the number one allergen will expand its range north, reaching places including upstate New York, Vermont, New Hampshire and Maine, while retreating from some current hot spots.

Multiple sclerosis: Accumulation of B cells triggers nervous system damage
B cells are important in helping the immune system fight pathogens.

Metallic nanocatalysts imitate the structure of enzymes
An international team of researchers has transferred certain structural characteristics of natural enzymes, which ensure particularly high catalytic activity, to metallic nanoparticles.

Breast screening linked to 60 per cent lower risk of breast cancer death in first 10 years
Women who take part in breast screening have a significantly greater benefit from treatments than those who are not screened, according to a study of more than 50,000 women. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to