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Science Current Events and Science News | Brightsurf | October 03, 2018


Newly discovered compounds shed fresh light on whole grain health benefits
Scientists have discovered new compounds that may explain whole grain health benefits, reports a new study led by the University of Eastern Finland.
Combination therapy targets latent reservoir of HIV
In a new study, Dan H. Barouch, MD, PhD, Director of the Center for Virology and Vaccine Research at Beth Israel Deaconess Medical Center, and colleagues demonstrate that administering broadly neutralizing antibodies (bNAb) designed to target HIV in combination with agents that stimulate the innate immune system delayed viral rebound following discontinuation of ART in monkeys.
Non-VA healthcare providers are uncertain how to care for veterans
A study published in Family Practice indicates that healthcare providers outside of the Veterans Affairs Department are uncertain how to address veterans' needs.
Expert roundtable discusses impact of thyroid autoimmune testing on women's health
A group of expert panelists gathered to discuss 'Thyroid Immune Testing -- Guidelines, Testing Platforms, and Clinical Impact on Women's Health.'
HAWC: Microquasar SS 433 reveals the nature of the brightest lanterns of the universe
They shine even from billions of light years away. Intriguing and enigmatic, quasars are loath to uncover their secrets.
Exercise reduces stress, improves cellular health in family caregivers
Exercising at least three times a week for six months reduced stress in a group of family caregivers and even appeared to lengthen a small section of their chromosomes that is believed to slow cellular aging, new UBC research has found
It's a beautiful game, but how you see it is all in the mind...
Researchers from the University of York have used MRI scanning to try and find out how people can have such different takes on football.
Recording device for cell history
ETH researchers are using the CRISPR-Cas system to develop a novel recording mechanism: the snippets of DNA it produces can provide information about certain cellular processes.
The risk of dying during pregnancy is five times higher for women with epilepsy
The risk of dying during pregnancy is negligible for the average Danish woman, but if the woman in question has epilepsy, the probability must be multiplied by five.
Shedding light on new treatment options for perimenopausal depression and sleep problems
Light therapy has long been a recognized treatment option for depression.
T cell bispecific antibody for the immune-mediated killing of HER2+ breast cancer cells
Researchers at the Vall d'Hebron Institute of Oncology in Barcelona show that the p95HER2-T cell bispecific antibody (TCB) can successfully guide immune cells, known as lymphocytes, directly to cancerous ones for their targeted killing.
Low self-esteem connected to greater risk for opioid use
Health, family and romance problems appear to be the particular life stressors most associated with increased risk for using opioids to cope, and individuals with low self-esteem appear to be at risk for these connections, according to a new paper including researchers at Binghamton University, State University at New York.
What doesn't kill you
After suffering mass mortality for years due to infection with the deadly Batrachochytrium dendrobatridis fungus, or chytrid, some frog populations in El Copé, Panama, now seem to be co-existing with the pathogen and stabilizing their populations.
New 3D-printed cement paste gets stronger when it cracks -- just like structures in nature
Purdue University researchers have 3D-printed cement paste, a key ingredient of the concrete and mortar used to build various elements of infrastructure, that gets tougher under pressure like the shells of arthropods such as lobsters and beetles.
Options for making sex more enjoyable at any age
Women at any age should be able to enjoy sex.
Wraparound services hold great promise for reducing health costs and improving outcomes
When Eskenazi Health in Indianapolis began offering on-site dietetics, social work and other wraparound services at its clinics, it did more than improve patient outcomes.
A new brain-inspired architecture could improve how computers handle data and advance ai
IBM researchers are developing a new computer architecture, better equipped to handle increased data loads from artificial intelligence.
Study shows how lixisenatide slows or prevents damage to the kidneys in patients with type 2 diabetes and cardiovascular disease
New research presented at the annual meeting of the European Association for the Study of Diabetes (EASD) and published simultaneously in The Lancet Diabetes & Endocrinology shows how the glucose-lowering drug lixisenatide can slow or prevent damage to the kidneys in macro-albuminuric patients with type 2 diabetes mellitus (T2DM) and cardiovascular disease.
ALS drug may help treat prostate cancer
Researchers have discovered a new use for an old drug as a potential treatment for prostate cancer.
Paradigm shift in tuberculosis treatment: genome sequencing replaces standard resistance testing
An international research team from the CRyPTIC Consortium has shown that genome sequencing can improve tuberculosis treatment.
Complex factors can drive the emergence and evolution of plant pathogens
New research sheds light on factors that contribute to the rise and spread of plant diseases.
UC anthropologist rewrites history using science, art
University of Cincinnati anthropology and University of Bordeaux medical science reveal ancient thyroid disease using science and art
Time to rethink how we diagnose Alzheimer's disease
With all the focus on Alzheimer's disease in recent years as a result of the aging population, what have we learned?
Study: Nursing homes increasingly pushing patients into rehab at end-of-life
A new study reveals a growing trend of potentially unnecessary -- and harmful -- high intensity rehabilitation services for residents of nursing homes.
Alternatives to pesticides -- Researchers suggest popular weeds
Research proves that extracts from S. nigrum and D. stramonium, globally existing weed species, may help to protect crop systems against agricultural pests.
Teen cannabis use is not without risk to cognitive development
A study led by researchers at CHU Sainte-Justine in Montreal confirms that cannabis use is related to impaired and lasting effects on adolescent cognitive development.
Liquid crystals and the origin of life
The display screens of modern televisions, cell phones and computer monitors rely on liquid crystals - materials that flow like liquids but have molecules oriented in crystal-like structures.
Even light drinking increases risk of death
Analyzing data from more than 400,000 people, researchers at Washington University School of Medicine in St.
Opioid overdoses, depression linked
A 1 percent increase in statewide depression diagnoses was associated with a 26 percent increase in opioid-related deaths.
Crossing new frontiers in melanoma research
In a Pigment Cell & Melanoma Research article, world-leading experts identify emerging frontiers in skin cancer and pigment diseases.
Potential mechanism by which BCG vaccine lowers blood sugar levels to near normal in type 1 diabetes discovered
New research being presented at this year's European Association for the Study of Diabetes (EASD) Annual Meeting in Berlin, Germany (Oct.
New model of polarization sheds light on today's politics
Americans are no longer voting for just the candidates who suit them best -- they're also voting strategically to empower their preferred political party in the legislature, and it's driving us apart, according to a new model of electoral competitiveness developed by Vanderbilt economist Mattias Polborn.
Cuisine of early farmers revealed by analysis of proteins in pottery from Çatalhöyük
Knowledge of the diet of people living in the prehistoric settlement of Çatalhöyük almost 8000 years ago has been complemented in astonishing scope and detail by analyzing proteins from their ceramic bowls and jars.
Pregnancy disorders may lead to more hot flashes
What occurs during pregnancy could have longer-term health effects than originally thought.
Demand for sexual services in Britain: does sex education matter?
By analysing survey data from 1999-2001 and 2010-2012, researchers have estimated the demand for commercial sex among British men.
Yale approach bases decision-making on older adults' own health priorities
In a pilot project, researchers at Yale, New York University School of Medicine and Baylor College of Medicine have shown that an innovative approach to health care for older adults with complex health needs can be integrated into a real-world clinical practice.
New fuel cell concept brings biological design to better electricity generation
Fuel cells have long been viewed as a promising power source.
Warmer springs can reduce summer plant productivity
A new extensive study on the effects of warmer springs on plant growth in northern regions shows substantially reduced plant productivity in later months.
Sexual harassment and assault linked to worse physical/mental health among midlife women
A new study by researchers at the University of Pittsburgh School of Medicine suggests that experiences of sexual harassment and sexual assault could have a significant impact on the physical and mental health of midlife women.
A novel molecule could spur new class of drugs for breast cancer
Researchers at Stevens Institute of Technology and colleagues have designed and developed a new class of molecules that use a never-before-known mechanism that may halt or destroy breast cancer tumors, particularly for patients with drug-resistant or dangerously metastatic stages of the disease.
Understanding why women may age slower than men
Why do women typically live longer than men? The Keynote Address at The North American Menopause Society (NAMS) Annual Meeting in San Diego, Oct.
Cardiovascular admissions more common among most deprived
People with diabetes from deprived backgrounds in England are twice as likely to end up in hospital with a major cardiovascular event such as a heart attack or stroke as those from more affluent communities, according to new research being presented at this year's European Association for the Study of Diabetes (EASD) Annual Meeting in Berlin, Germany (Oct.
New geriatrics research offers roadmap to 'revolutionary change' for person-centered care
Published today in the Journal of the American Geriatrics Society, two new research articles and a corresponding commentary from preeminent geriatrics leaders describe ways to make person-centered care--a novel approach to health that puts personal values and preferences at the forefront of decision-making--more actionable for older people.
Proposed simple chemical reaction network of existing biological E. coli signaling data
Apparently, bacteria do not care about math and they do not have in their curricula a calculus course.
Fly protein has protective effect on dopaminergic neurons
A team from Lehigh University recently identified the fruit fly protein known as Scarlet as a target gene whose function is required to prevent age-dependent loss of dopaminergic neurons in fruit flies.
Columbia astronomers find first compelling evidence for a moon outside our solar system
On the hunt for distant worlds, Columbia researchers have identified an exomoon candidate around the transiting exoplanet Kepler-1625b that indicates the presence of a previously unknown gas-giant moon.
Hubble finds compelling evidence for a moon outside the Solar System
Using the NASA/ESA Hubble Space Telescope and older data from the Kepler Space Telescope two astronomers have found the first compelling evidence for a moon outside our own Solar System.
Family of rodents may explain how some groups of animals become so diverse
FSU Professor of Biological Science Scott Steppan and his former postdoctoral researcher John Schenk, now at Georgia Southern University, developed a new model that shows how geography can play a major role in how families of animals evolve and result in many species.
New nuclear medicine tracer will help study the aging brain
A new PET imaging radiotracer could help researchers understand neurodegenerative disease and the aging brain.
Fresh insights help unlock mysteries of the first stages of life
Key insights into how sperm and egg cells are formed have been discovered by scientists, shedding light on the earliest stages of their development.
Scientists discover new nursery for superpowered photons
A strange star system in our own Milky Way is producing some of the most powerful gamma rays ever seen.
New research could lead to more energy-efficient computing
Computers in the future could be more energy-efficient, thanks to new research from Binghamton University, State University at New York.
Diet rich in fried and processed foods linked to increased hypertension in black Americans
New findings suggest that diet is a major contributor for the increased risk of hypertension in black compared to white Americans.
No more Iron Man: submarines now have soft, robotic arms
The human arm can perform a wide range of extremely delicate and coordinated movements.
Taking control of stress and menopause symptoms
It's another one of those chicken-or-the-egg dilemmas ... do bothersome menopause symptoms create stress or does stress bring on menopause symptoms?
A grape constituent protects against cancer
Lung cancer is the deadliest form of cancer, and 80 percent of death are related to smoking.
Study reveals large regional variations on future trends of diabetes dependent on if obesity rates are tackled
New research presented at this year's annual meeting of the European Association for the Study of Diabetes (EASD) in Berlin looks into the rising prevalence of both obesity and type 2 diabetes (T2D) around the world and estimates the population that will likely be affected by both conditions over the coming decades.
Couples showing off: Songbirds are more passionate in front of an audience
Both sexes of a songbird called the blue-capped cordon-bleu intensify courtship performances that involve singing and dancing in the presence of an audience, especially if it is a member of the opposite sex, an international team of researchers has discovered.
Discovery of first genetic variants associated with meaning in life
For the first time, locations on the human genome have been identified that can explain differences in meaning in life between individuals.
New approach on the use of big data in clinical decision support
A new computational approach that allows the identification of molecular alterations associated with prognosis and resistance to therapy of different types of cancer was developed by the research grould led by Nuno Barbosa Morais, Group Leader at Instituto de Medicina Molecular João Lobo Antunes (iMM; Portugal), and now published open access in Nucleic Acids Research.
Stepping toward a smaller carbon footprint
Burning fossil fuels such as coal and natural gas releases carbon into the atmosphere as CO2 while the production of methanol and other valuable fuels and chemicals requires a supply of carbon.
Lilly Pilly fossils reveal snowless Snowy Mountains
Leaf fossils discovered high in Australia's Snowy Mountains have revealed a past history of warmer rainforest vegetation and a lack of snow, in contrast with the alpine vegetation and winter snow-covered slopes of today.
Low vitamin D linked to earlier death in Thai men
Previous studies on the association between blood levels of vitamin D and survival have come from high-income countries.
Stem cells organize themselves into pseudo-embryos
The three axes of the mammalian body, established shortly after implantation of the embryo in the uterus, becomes organized under the control of gene networks that coordinate the transcription of DNA.
Funder involved in all aspects of most industry-funded clinical trials
In most industry funded trials reported in high impact medical journals, all aspects of the trial involved the industry funder, finds a study published by The BMJ today.
Who needs genetic testing for breast cancer?
Advances are regularly being made in cancer genetics. But, if patients aren't screened and diagnosed early enough, the advances can't save lives.
Unmasking corrosion to design better protective thin films for metals
Corrosion of metals is an age-old problem, but they are normally protected from catastrophic damage by naturally forming, super-thin oxide films.
Revolutionary ultra-thin 'meta-lens' enables full-color imaging
Columbia Engineers have created the first flat lens capable of correctly focusing a large range of colors of any polarization to the same focal spot without the need for any additional elements.
Physical therapy is highly effective for infants with congenital muscular torticollis
Congenital muscular torticollis (CMT) is a common postural deformity in infants, and one that can be effectively treated by physical therapy.
Cooling effect of preindustrial fires on climate underestimated
A new study, ;Reassessment of Pre-Industrial Fire Emissions Strongly Affects Anthropogenic Aerosol Forcing,' by a Cornell University postdoctoral researcher, published in Nature Communications, finds that emissions from fire activity were significantly greater in the preindustrial era, which began around 1750, than previously thought.
Smokers with peripheral artery disease need more help to kick the habit
Study Highlight: While many people with peripheral artery disease smoke, few receive proven smoking cessation strategies from their doctor.
Flowing salt water over this super-hydrophobic surface can generate electricity
Engineers have developed a super-hydrophobic surface that can be used to generate electrical voltage.
Genome of sea lettuce that spawns massive 'green tides' decoded
Sea lettuce, a fast-growing seaweed that spawns massive 'green tides,' is a prolific thief, according to research that for the first time sequenced the genome of a green seaweed.
Thanks to help from Hubble, the first confirmed exomoon?
Taking advantage of observations from the Hubble Space Telescope, researchers provide evidence of what could be the first exomoon -- a moon orbiting a planet outside our solar system.
Bone knife from Morocco is oldest specialized tool associated with Aterian culture
A single bone artifact found in a Moroccan cave is the oldest well-dated specialized bone tool associated with the Aterian culture of the Middle Stone Age, according to a study released Oct.
Wheat that pumps iron, naturally
Crop breeders are developing a biofortified wheat that could make proper nutrition easier.
Kidney care conflicts of interest: Experts call for transparency on joint-venture dialysis clinics
Penn Medicine experts in nephrology and health policy call for more transparency about joint-venture ownership of dialysis clinics to better understand what impact these arrangements may have on patient referrals and clinical outcomes.
Russian scientists develop high-precision laser for satellite navigation
Scientists from ITMO University developed a laser for precise measurement of the distance between the Moon and Earth.
Getting women in the mood for sex
Even before ancient Egyptians, the search was on for aphrodisiacs that stimulated sexual desire and pleasure.
Sexual harassment and assault take long-term toll on women's health
The #MeToo Movement, in addition to raising awareness, has provided people with a voice to speak out when they've been wronged, harassed, or assaulted.
New information for women faced with infertility
A new Journal of Obstetrics and Gynaecology Research study offers infertile women new information regarding their expected probabilities of becoming pregnant and may help them select the optimal treatment based on their various risk factors.
Emissions-free energy system saves heat from the summer sun for winter
A research group from Chalmers University of Technology, Sweden, has made great, rapid strides towards the development of a specially designed molecule which can store solar energy for later use.
Inflammatory bowel disease drug attacks safe haven for HIV
A first in human study of patients with both inflammatory bowel disease (IBD) and HIV found that administering a drug for IBD disrupts congregating T cells infected with HIV in the gut -- which form a persistent reservoir of infection.
NASA peers into the large clear eye of Hurricane Walaka
An infrared look by NASA's Terra satellite found a ring of intense storms around the wide eye of Hurricane Walaka in the Central Pacific Ocean.
Tropical frogs found to coexist with deadly fungus
In 2004, the frogs of El Copé, Panama, began dying by the thousands.
Hormone therapy for 'low T' may not be safe for all men
Boosting testosterone levels with hormone supplements may not be safe or appropriate for all men with low testosterone (low T), according to new research.
Closed-loop 'artificial pancreas' insulin delivery system offers better glucose control and reduced risk of hypoglycaemia
New research presented at this year's annual meeting of the European Association for the Study of Diabetes (EASD) in Berlin, Germany, and published in The Lancet, shows that use of a hybrid day-night closed-loop insulin delivery system is better than sensor-augmented pump therapy for blood sugar control in poorly controlled type 1 diabetes.
Articles examine aspects of sexual assault, harassment
Two articles are being published to coincide with the North American Menopause Society annual meeting.
CU Anschutz scientists identify genetic causes of mitochondrial diseases
An international team of scientists led by researchers from the University of Colorado School of Medicine have identified previously unknown genetic causes of mitochondrial diseases.
Reducing mutant Huntington disease protein can restore cognitive function in mice
New research from the University of British Columbia suggests that reducing mutated Huntington disease protein in the brain can restore cognitive and psychiatric impairments in mice.
3,500-year-old pumpkin spice? Archaeologists find the earliest use of nutmeg as a food
A new study describes the earliest-known use of nutmeg as a food ingredient, found at an archaeological site in Indonesia.
How has the gluten-free industry affected individuals with celiac disease?
new Journal of Human Nutrition and Dietetics study has investigated how the recent proliferation of the gluten-free industry has affected individuals living with celiac disease.
Green algae, white noise: Gas bubbles produced during photosynthesis 'ring' upon release
Gas bubbles released by marine algae during photosynthesis produce sound whose intensity correlates with the degree of algal cover on coral reefs, according to a study published Oct.
ReFRAME drug repurposing collection yields hope for treating diseases that kill millions
Drugs that have been previously tested for safety in humans offer a major advantage over new compounds, as the time and cost of conducting preclinical trials in animals and early trials in humans represents a major hurdle to bringing new drugs to the clinic.
Common herbicide compound may save millions of lives
A chemical compound found in common herbicides could help fight hospital-acquired human fungal pathogenic infections, which claim an estimated two million lives per year.
A warmer spring leads to less plant growth in summer
Due to climate change, springtime growth begins earlier each year.
It pays to be pessimistic, shows new research into entrepreneurs
Optimistic thinking is leading people to set up businesses that have no realistic prospect of financial success, shows new research which may help explain why only fifty per cent of businesses in the UK survive their first five years.
Anti-integrin therapy effect on intestinal immune system in HIV-infected patients
In a study published today in Science Translational Medicine, Mount Sinai researchers describe for the first time a mechanism that may shrink collections of immune cells in the gastrointestinal (GI) tract, called lymphoid aggregates, where HIV may lay sequestered.
A copper bullet for tuberculosis
Tuberculosis is a sneaky disease, and the number one cause of death from infectious disease worldwide.
NASA gets a look at the rainfall rates within Typhoon Kong-Rey
The Global Precipitation Measurement mission or GPM core satellite passed over Typhoon Kong-Rey moving through the Northwestern Pacific Ocean and found heaviest rainfall occurring in the storm's eyewall.
Study examines care for knee replacement patients at physical therapy facilities
In an analysis of 112 records from 30 physical therapy (PT) sites regarding care for patients who had undergone total knee replacement (TKR) surgery, investigators found that the content and amount of specific exercises varied widely.
The dog, when treated with insecticide, is man's best friend
Treating dogs at a community level with systemic insecticide could considerably reduce the transmission of visceral leishmaniasis in Brazil, according to a modelling study led by ISGlobal, an institution supported by 'la Caixa' Foundation.
Glow-in-the-dark paper as a rapid test for infectious diseases
Researchers from Eindhoven University of Technology (The Netherlands) and Keio University (Japan) present a practicable and reliable way to test for infectious diseases.
Periodontal disease bacteria may kick-start Alzheimer's
Long-term exposure to periodontal disease bacteria causes inflammation and degeneration of brain neurons in mice that is similar to the effects of Alzheimer's disease in humans.
Study finds elementary school student support leads to lower high school dropout
Elementary-school students who participated in a comprehensive support intervention in the Boston public school district had about half the odds of dropping out of high school as students not in the intervention, according to a new study published online today in AERA Open, a peer-reviewed journal published by the American Educational Research Association.
Best way to assess obstetrics programs? Measure outcomes for both mom, baby
Mothers and babies are dying due to birth-associated complications at higher rates now than a decade ago.
Evolution: Genetics doesn't matter much in forming society
Genetics isn't as important as once thought for the evolution of altruistic social behavior in some organisms, a new insight into a decade-long debate.
Riffyn launches Open Access for scientists at non-profits
Riffyn has launched Riffyn Open Access which provides free use of its patented Scientific Development Environment (SDE™) to any member of a non-profit organization.
NASA sees Atlantic's Leslie become a hurricane
NASA's Aqua satellite captured an infrared image of Hurricane Leslie that revealed strong storms circled the center.
Interferential current offers solution to painful sex
Insufficient estrogen creates an array of physical changes in women, some of which limit the ability to enjoy sex.
Midwifery linked to lower odds of birth complications for low-income women
New research from the University of British Columbia and the University of Saskatchewan is adding new evidence in support of midwives as a safe option for prenatal care, especially for women who have low socioeconomic status.
Social class determines whether buying experiences or things brings greater happiness
What is the best way to spend money to increase your happiness?
Domestic refrigerators may pose risk to insulin quality
New research being presented at this year's European Association for the Study of Diabetes (EASD) Annual Meeting in Berlin, Germany (Oct.
Interpersonal psychotherapy helps depressed women with histories of sexual trauma
Women sexually abused in childhood and adolescence who suffer from depression and post-traumatic stress disorder benefit significantly from Interpersonal Psychotherapy-Trauma, according to a Rutgers researcher.
Sleeping too much or too little may affect stroke risk differently based on race
How many hours people sleep at night may affect their risk of stroke differently based on race, according to a study published in the Oct.
NASA sees powerful storms circling major Hurricane Sergio's eye
Very powerful storms ringed the eye of Hurricane Sergio in infrared imagery from NASA's Aqua satellite.
Fathers' postnatal hormone levels predict later caregiving, study shows
Dads whose cortisol levels were elevated while they held their newborns on the day of their birth -- either skin-to-skin or clothed -- were more likely to be involved with indirect care and play with their infants in the first months of their lives.
25 UK species' genomes sequenced for first time
The newly sequenced genomes will enable research into why some brown trout migrate to the open ocean, whilst others don't, or investigations into the magneto receptors in robins' eyes that allow them to 'see' the magnetic fields of the Earth.
Novel inhibitor of vascular calcification tested in trial of haemodialysis patients
Cardiovascular calcification is a major health concern in patients with kidney failure undergoing haemodialysis.
Neanderthal-like features in 450,000-year-old fossil teeth from the Italian Peninsula
Fossil teeth from Italy, among the oldest human remains on the Italian Peninsula, show that Neanderthal dental features had evolved by around 450,000 years ago, according to a study published Oct.
Hugs may help protect against conflict-related distress
Receiving hugs may buffer against deleterious changes in mood associated with interpersonal conflict, according to a study published Oct.
Is replying to online reviews always good? New research shows downside of over-responding
A new study to be published in the INFORMS journal Marketing Science found that when managers respond to online reviews it's possible that those responses could actually stimulate additional reviewing activity and an increased number of negative reviews.
Teeth of Homo antecessor shed light on trends in Pleistocene hominin dental evolution
Some of the dental features characteristic of Neanderthals were already present in Early Pleistocene Homo antecessor, according to a study published in the open-access journal PLOS ONE by Laura Martín-Francés of the University of Bordeaux, France and colleagues.
Cataracts linked to higher risks of osteoporosis and fracture
A new Journal of the American Geriatrics Society study has evaluated the potential impacts of cataracts and cataract surgery on the risks of osteoporosis and bone fractures.
Mountaintop observatory sees gamma rays from exotic Milky Way object
The High-Altitude Water Cherenkov Gamma-Ray Observatory (HAWC) collaboration has detected highly energetic light coming from a microquasar -- a black hole that gobbles up stuff from a companion star and blasts out powerful jets of material.
European badgers' gut bacteria may be a powerful ally in the fight against tuberculosis
What do cattle, European badgers, and gut bacteria have in common?
Study sheds light on atypical periprosthetic femoral fractures
Following surgery, some patients experience a broken bone around the implants of a total hip replacement--called a periprosthetic femoral fracture.
Broad genetic variation on the Pontic-Caspian Steppe
The genetic variation within the Scythian nomad group is so broad that it must be explained with the group assimilating people it came in contact with.

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