سكوتسديل، أريزونا - لم تعد أعراض انقطاع الطمث هي أعراض منتصف العمر بعد الآن، وفقًا للدراسة الجديدة الصادرة عن Mayo Clinic والمنشورة في مجلة جمعية انقطاع الطمث في أمريكا الشمالية.
There is consensus among adoption researchers that for many birth mothers the experience of placing their children for adoption brings feelings of grief, loss, shame, guilt, remorse and isolation. Any level of satisfaction (or lack thereof) in such a decision varies. But how is that level of satisfaction – that feeling that the right decision was made – affected by time?
A team of scientists working at Berkeley Lab has confirmed a special property known as “chirality” – which potentially could be exploited to transmit and store data in a new way – in nanometers-thick samples of multilayer materials that have a disordered structure.
Physicists on the MicroBooNE collaboration at the Department of Energy’s Fermilab have produced their first collection of science results. The measurements are of three independent quantities that describe neutrino interactions with argon atoms.
• Among individuals with chronic kidney disease, hard illicit drug use was associated with higher risks of kidney disease progression and early death. • Tobacco smoking was associated with a higher risk of early death. • Alcohol drinking was associated with a lower risk of early death.
Patients who take prescription opioids for a longer period before spinal surgery are more likely to continue using opioids several months after surgery, reports a study in the June 6, 2018, issue of The Journal of Bone & Joint Surgery. The journal is published in the Lippincott portfolio in partnership with Wolters Kluwer.
Rats injected with beneficial bacteria weekly for three weeks showed lasting anti-inflammatory changes in the brain and more resilience when exposed to stress. The findings could lead to new microbiome-based immunizations for anxiety and PTSD and new treatments for depression.
Researchers at The University of Kansas Cancer Center have discovered a therapy combination that may be helpful in the treatment of certain types of ovarian cancer.
Changes in diet have been proposed as a way to reduce carbon emissions from the food system. A new study provides the latest and most comprehensive estimate of greenhouse gas emissions generated by U.S. consumer food purchases, and assesses how those choices could affect diet and climate change.
根据《北美更年期协会》杂志（North American Menopause Society）发表的一项新的Mayo Clinic研究显示，更年期（Menopause）症状不仅仅发生在中年时期。
Some hurricanes are moving more slowly, spending increased time over land and leading to catastrophic local rainfall and flooding, according to a new study published Wednesday (June 6) in the journal Nature.
Os sintomas da Menopausa não são mais apenas para a meia-idade, de acordo com um novo estudo da Mayo Clinic publicado no Journal of the North American Menopause Society. Os pesquisadores coletaram dados de quase 5000 mulheres. Quando perguntadas se elas experienciaram sintomas comumente associados à menopausa, como ondas de calor e sudorese noturna, uma porcentagem significativa relatou que sim em seus 60, 70 e 80 anos.
By Julie Hammonds Office of the Vice President for ResearchNorthern Arizona University assistant professor Ryan Behunin collaborated with a team of physicists from Yale and the University of Texas at Austin in discovering an innovative way to manipulate light in silicon. By demonstrating a new type of laser that amplifies light with sound waves in a silicon chip, the team’s research represents a significant advance in the field of silicon photonics.
An experimental model of HIV infection in mice, developed by Mount Sinai researchers, has shown that HIV causes learning and memory dysfunction, a cognitive disease that is now observed in about half of HIV infected people that worsens with age, and is currently incurable.
Women with thyroid dysfunction in the first half of pregnancy face an increased risk for gestational diabetes, a form of diabetes that is typically diagnosed during the second trimester, according to a new study published in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism.
A study conducted by an international research team, which included investigators from Seattle Children’s Research Institute, implicates variants in four genes as a primary cause of non-syndromic cleft lip and palate in humans. The genes, associated for the first time with cleft lip and palate, encode proteins that work together in a network, providing important insight into the biological basis of one of the most common physical malformations.
2-D velocity imaging helps fusion researchers understand the role of ion winds (aka flows) in the boundary of tokamak plasmas.
Columbia Engineers have discovered a new fundamental feature of brain oscillations: they actually move rhythmically across the brain, reflecting patterns of neuronal activity that propagate across the cortex. The researchers also found that the traveling waves moved more reliably when subjects performed well while performing a working memory task, indicating traveling waves are important for memory and cognition: the waves play a significant role in supporting brain connectivity.
Sometimes a good theory just needs the right materials to make it work. That’s the case with recent findings by UT’s physicists and their colleagues, who designed a two-dimensional magnetic system that points to the possibility of devices with increased security and efficiency, using only a small amount of energy
Research in mice shows that a protein made by the stem cells that give rise to neurons, but not by neurons themselves, is key to brain cells’ ability to migrate during development and assume their proper positions. This primordial protein acts by clinging onto thousands of sites in the genome, affecting the activity of multiple genes that regulate brain development. The findings could yield valuable clues for a variety of neurodevelopmental disorders.
Scientists have zeroed in on a culprit that spurs damaging inflammation in the heart following a heart attack. The guilty party is a type of immune cell that tries to heal the injured heart but instead triggers inflammation that leads to even more damage. The researchers, from Washington University School of Medicine in St. Louis have found that an already approved drug effectively tamps down such inflammation in mice, protecting the heart from the progressive damage that often occurs after a heart attack.
Spring came later this year, but high inter-annual variability is not unusual, according to geospatial scientists who been tracking the growing season since 2000 using environmental satellite data.
Alcohol use and alcohol-use disorders in the U.S. greatly increased between 2001 and 2013, particularly among African-American emerging adults (i.e., those 18-29 years of age). Previous research showed that African American youth are unequally exposed to risk factors for substance use such as economic pressures, neighborhood disorder, and racial discrimination. This study examined how African American mothers’ protective parenting and alcohol use influenced their offspring’s drinking and perceptions of drinkers.
A drug that reduces delirium in postoperative patients may work by preventing the overactivity of certain receptors in brain cells, according to a new study published in the Online First edition of Anesthesiology, the peer-reviewed medical journal of the American Society of Anesthesiologists (ASA).
Machine learning using real-time symptom reports can accurately detect lymphedema, a distressing side effect of breast cancer treatment that is more easily treated when identified early, finds a new study led by NYU Rory Meyers College of Nursing and published in the journal mHealth.
News stories about terrorism, disease outbreaks, natural disasters, and other potential threats become increasingly negative, inaccurate and hysterical when passed from person to person, according to new research by the University of Warwick.
Mucus and other airway secretions that are expelled when a person with the flu coughs or exhales appear to protect the virus when it becomes airborne, regardless of humidity levels, a creative experiment conducted by the University of Pittsburgh and Virginia Tech discovered.
The number of insurance denials for life-saving hepatitis C drugs among patients with both private and public insurers remains high across the United States. Private insurers had the highest denial rates, with 52.4 percent of patients denied coverage, while Medicaid denied 34.5 percent of patients and Medicare denied 14.7 percent.
Negative experiences on social media carry more weight than positive interactions when it comes to the likelihood of young adults reporting depressive symptoms, according to a new University of Pittsburgh analysis.
By screening 250 user reviews and comments for a once popular -- but proven inaccurate -- mobile app claiming to change your iPhone into a blood pressure monitor, Johns Hopkins researchers have added to evidence that a high “star rating” doesn’t necessarily reflect medical accuracy or value.
Biologists from the National University of Singapore discovered that the gene apterous A is responsible for the appearance and sex-specific traits of the dorsal wings of the African squinting bush brown butterfly.
University of Adelaide researchers have created a laser that can “smell” different gases within a sample. Applications for the new device lie not just in environmental monitoring
What does flying in a commercial airliner have in common with working at the office or relaxing at home? According to a new study, the answer is the microbiome – the community of bacteria found in homes, offices and aircraft cabins.
SLAC theorist Lance Dixon and collaborators have calculated the formula for the energy-energy correlation (EEC) with more precision than ever before.
What does it take for plants and animals to evolve in response to climate change? Researchers have found a “tipping point” at which species, under pressure from dwindling food supplies, evolve to take advantage of new resources.
A combination of the drugs mifepristone and misoprostol can help bring closure to some women and their families suffering from miscarriage, and reduces the need for surgical intervention to complete the painful miscarriage process. Results of a new clinical trial led by researchers at the Perelman School of Medicine at the University of Pennsylvania, show that while the standard drug regimen using misoprostol on its own frequently fails to complete the miscarriage, a combination of misoprostol and the drug mifepristone works much more reliably.
Article describes results of new simulation of magnetic islands.
Black and Hispanic people may be more likely to have another intracerebral hemorrhage, or a stroke caused by bleeding in the brain, than white people, according to a study published in the June 6, 2018, online issue of Neurology®, the medical journal of the American Academy of Neurology.
Foodborne illness is a serious and preventable public health problem, affecting one in six Americans and costing an estimated $50 billion annually. As local health departments adopt new tools that monitor Twitter for tweets about food poisoning, a study from Washington University in St. Louis is the first to examine practitioner perceptions of this technology.
Managing type 1diabetes during the first two decades of life is challenging. Insulin requirements change along with the stages of life --- childhood, puberty, young adulthood, and beyond. But a 20-year longitudinal study conducted by researchers from Joslin Diabetes Center and Harvard Medical School identifies clear predictors of rising A1c levels in young persons, as well as ways to improve glycemic control in this population.
People responsible for Title IX implementation often lack resources and training, study finds. Staff who are supposed to support students experiencing sexual harassment or discrimination are difficult to identify and access.
A study published in the journal Acta Diabetologica reports that people with diabetes and prediabetes who have lower sleep efficiency – a measure of how much time in bed is actually spent sleeping – have poorer cognitive function than those with better sleep efficiency.“The cognitive effects of poor sleep quality are worse for this population, which we know is already at risk for developing cognitive impairment as a result of having diabetes,” said Dr.
A research team at Rush University Medical Center has identified a pair of biomarkers that indicate which hip replacement patients are likely to develop osteolysis, the destruction of bone tissue around a replacement joint that is a leading cause of failed hip replacements.
When narcissistic individuals are able to imagine themselves in a victim’s situation, they are more likely to donate to charity, according to new research from the University at Buffalo School of Management.
Parents have been reading—and sharing—alarming reports of children who died or nearly died due to "dry drowning" over the past year. However, the use of that incorrect, nonmedical term has contributed to confusion about the true dangers of drowning in children and led to serious and fatal conditions being ignored after a “dry drowning” diagnosis was made, according to a special report in the June issue of Emergency Medicine News, published in the Lippincott portfolio by Wolters Kluwer.
Researchers at University of California San Diego School of Medicine discovered that they can block inflammation in mice with a naturally occurring antibody that binds oxidized phospholipids (OxPL), molecules on cell surfaces that get modified by inflammation. Even while on a high-fat diet, the antibody protected the mice from arterial plaque formation, hardening of the arteries and liver disease, and prolonged their lives.
In a new study, researchers directly compared more than 16,000 DNA locations, and for the first time found clear evidence of genetic differences between Red-shafted and Yellow-shafted Flickers.
New research from Kaitlin Woolley shows that immediate rewards increase interest and enjoyment in tasks, compared with rewards given at the end of a task.
Researchers have synthesized the first molecule capable of insulating at the nanometer scale more effectively than a vacuum barrier. The team’s insight was to exploit the wave nature of electrons. By designing an extremely rigid silicon-based molecule under 1 nm in length that exhibited comprehensive destructive interference signatures, they devised a novel technique for blocking tunnelling conduction. This new design principle has the potential to support continued miniaturization of classic transistors in the near term.
How the western blacklegged tick stays alive so long on so few nutrients and essential vitamins is the focus of recent research by Humboldt State University.
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