Daegu Gyeongbuk Institute of Science and Technology (DGIST) scientists in Korea have developed algorithms that more efficiently measure how difficult it would be for an attacker to guess secret keys for cryptographic systems. The approach they used was described in the journal IEEE Transactions on Information Forensics and Security and could reduce the computational complexity needed to validate encryption security. "Random numbers are essential for generating cryptographic information," explains DGIST computer scientist Yongjune Kim, who co-authored the study with Cyril Guyot and Young-Sik Kim. "This randomness is crucial for the security of cryptographic systems." Cryptography is ...

University of South Australia researchers have identified an enzyme that may help to curb chronic kidney disease, which affects approximately 700 million people worldwide. This enzyme, NEDD4-2, is critical for kidney health, says UniSA Centre for Cancer Biology scientist Dr Jantina Manning in a new paper published this month in Cell Death & Disease. The early career researcher and her colleagues, including 2020 SA Scientist of the Year Professor Sharad Kumar, have shown in an animal study the correlation between a high salt diet, low levels of NEDD4-2 and advanced kidney disease. While a high salt diet can exacerbate some forms of kidney disease, until now, researchers did not realise ...

Pioneering neural recordings in patients with Parkinson's disease by UC San Francisco scientists lays the groundwork for personalized brain stimulation to treat Parkinson's and other neurological disorders. In a study published May 3rd in Nature Biotechnology, UCSF Weill Institute for Neurosciences researchers implanted novel neurostimulation devices that monitor brain activity for many months, with and without deep brain stimulation (DBS) therapy. Pairing the brain recordings with wearable monitors of movement, they identified patterns of brain activity corresponding to specific movement abnormalities associated with Parkinson's. Their research provides the first ...

HOUSTON - Researchers have found the right formula for mixing a cement that does double duty as a structural material and a passive photocatalytic water purifier with a built-in means of replenishment: simply sand down the material's surface to refresh the photocatalytic quality. They found this recipe using a few very precise physical laboratory experiments whose data were then greatly amplified using a computational method called combinatorics that tested thousands of combinations of cement composites and their photocatalytic qualities. The results, say the researchers from C-Crete Technologies and Rice University, indicate ...

Blood may seem like a simple fluid, but its chemistry is complex. When too much potassium, for instance, accumulates in the bloodstream, patients may experience deadly irregular heart rhythms. Cardiovascular scientists at Virginia Tech's Fralin Biomedical Research Institute at VTC are studying why. In a new study, published in Pflügers Archiv European Journal of Physiology, the research team led by Steven Poelzing, associate professor at the institute, describes how subtle changes in potassium, calcium, and sodium levels regulate heartbeats. Poelzing ...

DALLAS (May 3, 2021) - Researchers from the Center for BrainHealth® at The University of Texas at Dallas are investigating a potential new early indicator of the decline toward Alzheimer's disease: measuring the energy metabolism of the living human brain using cutting-edge imaging techniques. The scientists devised a unique way to illustrate energy consumption and reserves in the brain with phosphorus magnetic resonance spectroscopy using an ultra-high-field 7 Tesla MRI scanner. Their results suggest that neurological energy metabolism might be compromised in mild cognitive impairment (MCI), the stage of decline between healthy ...

A study published today in Nature Communications shows that the drug rucaparib has been effective in treating certain types of ovarian cancers if used early in treatment, after a diagnosis, and before the cancer cells build up a resistance to chemotherapy. Rucaparib is in a relatively new class of drugs - Poly(ADP-ribose) polymerase or PARP inhibitors - which have been approved for therapy in ovarian cancers. This study provides insights into both how the cancers resist treatments, and which patients may respond favorably to the drug, said lead author Dr. Elizabeth Swisher, a UW Medicine ...

Durham, NC - A study released today in STEM CELLS Translational Medicine offers hope for those suffering from a chronic, difficult to treat condition called non-tuberculous mycobacteria (NTM) lung infection. The study describes how researchers at Case Western University developed a new model of NTM lung infection and then used it to show how effective human mesenchymal stem cells (hMSCs) are in treating this condition - and even which donor cells might be best for doing so. "The potential to use human mesenchymal stem cells to treat difficult lung infections is promising," said Anthony Atala, M.D., Editor-in-Chief of STEM ...

PULLMAN, Wash. -- Professor Arda Gozen looks to a future someday in which doctors can hit a button to print out a scaffold on their 3-D printers and create custom-made replacement skin, cartilage, or other tissue for their patients. Gozen, George and Joan Berry associate professor in the Washington State University School of Mechanical and Materials Engineering, and a team of researchers have developed a unique scaffolding material for engineered tissues that can be fine-tuned for the tricky business of growing natural tissue. They report on their research in the journal, Bioprinting. The team also includes researchers from WSU's ...

Dating violence - physical, sexual, psychological or emotional within a relationship, including stalking - is pervasive on college campuses with far-reaching health implications. One in five women experience a sexual assault in college and students living in sorority houses are three times more likely to experience rape. College students are vulnerable to dating violence because of the influence of their social and living environments. Researchers from Florida Atlantic University's College of Education in collaboration with Sacred Heart University conducted a study to understand the dating violence experience and perpetration of college-age women, ...

Astronomers have identified more than 4,000, and counting, confirmed exoplanets -- planets orbiting stars other than the sun -- but only a fraction have the potential to sustain life. Now, new research from UBC's Okanagan campus is using the geology of early planet formation to help identify those that may be capable of supporting life. "The discovery of any planet is pretty exciting, but almost everyone wants to know if there are smaller Earth-like planets with iron cores," says Dr. Brendan Dyck, assistant professor of geology in the Irving K. Barber Faculty of Science and lead author on the study. "We typically hope to find these planets in the so-called 'goldilocks' or habitable ...

Researchers at the University of North Carolina at Chapel Hill and Duke University improved HIV care by gamifying it with a mobile gaming application. Gaming features - like those used to drive airline loyalty and track daily steps --- helped young men living with HIV achieve viral suppression and doubled their chances for reaching near perfect adherence to medication plans, according to a study in AIDS and Behavior. Gamification can inspire changes in behavior when a doctor's advice or a patient's good intentions are not enough. In this case, motivating those living with HIV to stick to ...

Research funding agencies around the world are testing creative approaches to address urgent needs while laying the foundation for discoveries that will meet the unpredictable demands of the future. According to a new expert panel report from the Council of Canadian Academies (CCA), Canada can bolster its research capacity by reducing administrative burdens, experimenting with funding approaches, and cultivating a robust, resilient, and diverse scientific workforce. "In the past year we have seen the power and promise of transformative research and the ability of researchers and funding organizations to pivot in times of crisis," said Shirley M. Tilghman, PhD, O.C., FRS, Chair of the Expert Panel. "But the pandemic has also exacerbated existing inequalities ...

Almost half of the parents who have children together with a parent with schizophrenia or bipolar disorder, are themselves burdened by psychological issues. This can affect family life and the children. This is shown in the research result from the major Danish psychiatry project iPSYCH. We typically choose a partner who resembles us in relation to social status, education and, to some extent, also income. Research has previously established this. A new study now shows that almost half of the parents who have children with a partner who suffers from schizophrenia or bipolar disorder themselves meet the criteria for a mental disorder. By comparison, this is 18 percent for parents in the control group. The results stem from The Danish High-Risk and Resilience ...

Aging is the biggest risk factor for perturbation of the nervous system, even in the absence of distinct disease or trauma. For yet unknown reasons, the impulse conducting, myelinated projections and synaptic connections between nerve cells are especially vulnerable to aging-related degeneration. These pathological alterations often manifest as cognitive, sensory, and motor decline in older adults and represent a serious socio-economic challenge. Malactivation leads to damage Scientists have long assumed that inflammation plays an important role in this process. Mal- or overactivation of distinct cells belonging to the innate immune system - the microglia - appears to promote damage of nerve fibers and synapses ...

As the digital revolution has now become mainstream, quantum computing and quantum communication are rising in the consciousness of the field. The enhanced measurement technologies enabled by quantum phenomena, and the possibility of scientific progress using new methods, are of particular interest to researchers around the world. Recently two researchers at Tampere University, Assistant Professor Robert Fickler and Doctoral Researcher Markus Hiekkamäki, demonstrated that two-photon interference can be controlled in a near-perfect way using ...

For the first time, international experts in psychology have built a framework to diagnose Compulsive Buying-Shopping Disorder - promising help for people struggling to manage their spending behaviour and mental wellbeing. The new guidelines, published in the Journal of Behavioral Addictions, confirms that excessive buying and shopping can be so serious as to constitute a disorder, giving researchers and clinicians new powers to develop more targeted interventions for this debilitating condition. The international collaboration, led by Professor Mike Kyrios from Flinders University's Órama Institute for Mental ...

SINGAPORE - A team of researchers from the Agency for Science, Technology and Research's (A*STAR) Genome Institute of Singapore (GIS) and Bioprocessing Technology Institute (BTI), as well as Singapore Eye Research Institute (SERI), have identified a genetic mutation (functionally defective CYP39A1 gene) associated with exfoliation syndrome, the most common cause of glaucoma. The findings could pave the way for future research on the cause of exfoliation syndrome and potential cures. Their research was published in Journal of the American Medical Association (JAMA) on 24 February 2021. Exfoliation syndrome is a systemic ...

Artificial intelligence that enhances remote monitoring of water bodies - highlighting quality shifts due to climate change or pollution - has been developed by researchers at the University of Stirling. A new algorithm - known as the 'meta-learning' method - analyses data directly from satellite sensors, making it easier for coastal zone, environmental and industry managers to monitor issues such as harmful algal blooms (HABs) and possible toxicity in shellfish and finfish. Environmental protection agencies and industry bodies currently monitor the 'trophic state' of water - its biological productivity - as an indicator of ecosystem health. Large clusters of microscopic algae, or phytoplankton, is called eutrophication and can ...

Mangroves and seagrasses grow in many places along the coasts of the world, and these 'blue forests' constitute an important environment for a large number of animals. Here, juvenile fish can hide until they are big enough to take care of themselves; crabs and mussels live on the bottom; and birds come to feed on the plants. However, the plant-covered coastal zones do not only attract animals but also microplastics, a new study shows. - The denser the vegetation, the more plastic is captured, says Professor and expert in coastal ecology, Marianne Holmer, from the University of Southern Denmark. She is concerned about how the accumulated microplastics affect animal and plant life. - We know from other ...

The EU-funded BIO-CRIME project - with support from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) - conducted a scientific investigation on the topic of illegal small animal trade and the associated risk of pathogen transmission. The study focused on the key areas of "illegal small animal trade" and the level of knowledge and proper behaviours of young people and adolescents with "zoonotic diseases" and the "One Health concept". One Health is an approach that recognises that human health is closely linked to the health of animals and our shared ...

In 2019 the climate movement experienced an unprecedented growth in its mobilization capacity and its political and media impact. The success of the movement is closely linked to the figure of Greta Thunberg and the global impact of her discourse and the "Fridays for Future" movement in hundreds of cities around the world. A study by Silvia Díaz-Pérez, Roger Soler-i-Martí and Mariona Ferrer-Fons, members of the UPF JOVIS research group of the Department of Communication, analyses the activist's speeches and messages on social networks and their legitimization through her personal story, and it also looks into the "Fridays for Future" movement in Barcelona, based on Twitter and Instagram posts. The research was based on a project that has received funding from ...

Cryptocurrencies like Bitcoin are becoming increasingly popular. At first glance, they have many advantages: Transactions are usually anonymous, fast and inexpensive. But sometimes there are problems with them. In certain situations, fraud is possible, users can discover information about other users that should be kept secret, and sometimes delays occur. The research unit "Security and Privacy" at TU Wien (Lukas Aumayr and his supervisor Prof. Matteo Maffei) in collaboration with the IMDEA Software Institute (Prof. Pedro Moreno-Sanchez, previously postdoc at TU Wien) and the Purdue University (Prof. Aniket Kate) analyzed these problems and developed an improved protocol. It has now been published and will be presented this year at ...

Sea turtles in the Cayman Islands are recovering from the brink of local extinction, new research shows. Monitoring from 1998-2019 shows loggerhead and green turtle nest numbers increased dramatically, though hawksbill turtle nest numbers remain low. In the first counts in 1998-99, just 39 sea turtle nests were found in total on the three islands. By 2019, the figure was 675. Captive breeding of green turtles and inactivity of a traditional turtle fishery due to tightening of restrictions in 2008 contributed to this - but populations remain far below historical levels and still face threats including ...

In the field of molecular epidemiology, the worldwide scientific community has been steadily sleuthing to solve the riddle of the early history of SARS-CoV-2. Despite recent efforts by the World Health Organization, no one to date has identified the first case of human transmission, or "patient zero" in the COVID-19 pandemic. Finding the earliest possible case is needed to better understand how the virus may have jumped from its animal host first to infect humans as well as the history of how the SARS-CoV-2 viral genome has mutated over time and spread globally. Since the first SARS-CoV-2 virus infection was detected in December 2019, well over a million genomes of SARS-CoV-2 have been sequenced worldwide, ...