Engineers at UC Riverside have unveiled an air-powered computer memory that can be used to control soft robots. The innovation overcomes one of the biggest obstacles to advancing soft robotics: the fundamental mismatch between pneumatics and electronics. The work is published in the open-access journal, PLOS One. Pneumatic soft robots use pressurized air to move soft, rubbery limbs and grippers and are superior to traditional rigid robots for performing delicate tasks. They are also safer for humans to be around. Baymax, the healthcare companion robot in the 2014 animated Disney film, Big Hero 6, is a pneumatic robot for good reason. But existing systems for controlling pneumatic soft robots still use electronic valves ...

Imagine an orange cat. Now, imagine the same cat, but with coal-black fur. Now, imagine the cat strutting along the Great Wall of China. Doing this, a quick series of neuron activations in your brain will come up with variations of the picture presented, based on your previous knowledge of the world. In other words, as humans, it's easy to envision an object with different attributes. But, despite advances in deep neural networks that match or surpass human performance in certain tasks, computers still struggle with the very human skill of "imagination." Now, a USC ...

BUFFALO, N.Y. - Many legacy media outlets played an unwitting role in the growth of the four most successful fake Twitter accounts hosted by the Russian Internet Research Agency (IRA) that were created to spread disinformation during the 2016 U.S. presidential campaign, according to a study led by a University at Buffalo communication researcher. In roughly two years beginning in late 2015, these accounts went from obscurity to microcelebrity status, growing from about 100 to more than 100,000 followers. With its heavily populated follower base ready to spread the word -- like all heavily engaged Twitter audiences -- the IRA could strategically deploy messages and provide visible metrics, creating an illusion of authority and ...

As the Covid-19 pandemic raged, news reports show that sales of electronic air cleaners have surged due to concerns about airborne disease transmission. But a research team at the Georgia Institute of Technology has found that the benefits to indoor air quality of one type of purifying system can be offset by the generation of other pollutants that are harmful to health. Led by Associate Professor Nga Lee "Sally" Ng in Georgia Tech's School of Chemical and Biomolecular Engineering and the School of Earth and Atmospheric Sciences, the team evaluated the effect of a hydroxyl radical generator in an office setting. Hydroxyl radicals react with odors and pollutants, decomposing ...

A team of researchers from the University of Maryland has 3D printed a soft robotic hand that is agile enough to play Nintendo's Super Mario Bros. - and win! The feat, highlighted on the front cover of the latest issue of Science Advances, demonstrates a promising innovation in the field of soft robotics, which centers on creating new types of flexible, inflatable robots that are powered using water or air rather than electricity. The inherent safety and adaptability of soft robots has sparked interest in their use for applications like prosthetics and biomedical devices. Unfortunately, controlling the fluids that make these soft ...

Evolution is often portrayed as a tree, with new species branching off from existing lineages, never again to meet. The truth however is often much messier. In the case of adaptive radiation, in which species diversify rapidly to fill different ecological niches, it can be difficult to resolve relationships, and the phylogeny (i.e. evolutionary tree) may look more like a bush than a tree. This is because lineages may continue to interbreed as new species are established, and/or they may diverge and then re-hybridize, resulting in genetically mixed populations (known as admixture). Even after species diverge, the introduction of genes from one species to another (known as introgression) can occur. All of ...

A UC San Francisco study has found that the antibiotic azithromycin was no more effective than a placebo in preventing symptoms of COVID-19 among non-hospitalized patients, and may increase their chance of hospitalization, despite widespread prescription of the antibiotic for the disease. "These findings do not support the routine use of azithromycin for outpatient SARS-CoV-2 infection," said lead author Catherine E. Oldenburg, ScD, MPH, an assistant professor with the UCSF Proctor Foundation. SARS-CoV-2 is the virus that causes COVID-19. Azithromycin, a broad-spectrum antibiotic, is widely prescribed as a treatment for COVID-19 in the United States and the rest of the world. "The hypothesis is that it has anti-inflammatory properties that ...

ATLANTA--An oral prodrug developed by a team of scientists led by Binghe Wang, Regents' Professor of Chemistry at Georgia State University, delivers carbon monoxide to protect against acute kidney injury, according to a new paper published in Chemical Science. Although carbon monoxide (CO) gas is toxic in large doses, scientists have discovered it can have beneficial effects by reducing inflammation and protecting cells against injury. Previous studies have demonstrated the protective effects of CO against injury in the kidneys, lungs, gastrointestinal tract and liver, among other organs. For the past five years, Wang and his collaborators have worked to design a safe way to deliver CO to human patients via prodrugs -- inactive compounds that ...

The COVID-19 pandemic knocked many women off schedule for important health appointments, a new study finds, and many didn't get back on schedule even after clinics reopened. The effect may have been greatest in areas where such care is already likely falling behind experts' recommendations. The study, by health care researchers in the University of Michigan END ...

The hydrothermal vent fluids from the Gorda Ridge spreading center in the northeast Pacific Ocean create a biological hub of activity in the deep sea. There, in the dark ocean, a unique food web thrives not on photosynthesis but rather on chemical energy from the venting fluids. Among the creatures having a field day feasting at the Gorda Ridge vents is a diverse assortment of microbial eukaryotes, or protists, that graze on chemosynthetic bacteria and archaea. This protistan grazing, which is a key mechanism for carbon transport and recycling in microbial food webs, exerts a higher predation pressure at hydrothermal vent sites than in the surrounding deep-sea environment, a new paper finds. "Our ...

Vaccine negativity and reluctance didn't just emerge during the COVID-19 pandemic. In a recent study published in the Disaster Medicine and Public Health Preparedness journal, authors from Loyola University Maryland and Johns Hopkins Bloomberg School of Public Health explored the appearance of negative dominance - a concept in which negative messages outweigh positive, solution-oriented messages in audiences' perceptions - in the context of COVID-19 vaccine-related information and activity online. Prior research has looked at media coverage to identify vaccine concerns among the public and its impact on vaccine-related beliefs and behaviors, the spread of misinformation and fake news on the Internet, and the role ...

New research from the RIKEN Center for Brain Science (CBS) in Japan shows that a deficit in histone methylation could lead to the development of autism spectrum disorders (ASD). A human variant of the SUV39H2 gene led researchers to examine its absence in mice. Published in Molecular Psychiatry, the study found that when absent, adult mice exhibited cognitive inflexibility similar to what occurs in autism, and embryonic mice showed misregulated expression of genes related to brain development. These findings represent the first direct link between the SUV39H2 gene and ASD. Genes are turned ...

What The Study Did: The association between primary care payment models and the use of telemedicine for Medicare Advantage enrollees during the COVID-19 pandemic was examined in this study. Authors: Brian W. Powers, M.D., M.B.A., of Humana Inc. in Louisville, Kentucky, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamahealthforum.2021.1597) Editor's Note: The article includes conflicts of interest disclosures. Please see the article for additional information, including other authors, author ...

What The Study Did: Researchers investigated whether death, other hospital outcomes and processes of care differed between patients cared for by female and male physicians at hospitals in Canada. Authors: Fahad Razak, M.D., M.Sc., of the University of Toronto in Ontario, Canada, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/  (doi:10.1001/jamahealthforum.2021.1615) Editor's Note: The article includes conflicts of interest disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support. #  #  # Media advisory: The full study is linked to this news ...

What The Study Did: National health care systems have different capacities to correctly identify people who died of COVID-19. Researchers in this study analyzed the gap between excess mortality and  COVID-19 confirmed mortality in 67 countries to determine the extent to which official data on COVID-19 deaths might be considered reliable. Authors: Davide Golinelli, M.D.,  Alma Mater Studiorum-University of Bologna in Italy, is the corresponding author. To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ (doi:10.1001/jamanetworkopen.2021.17359) Editor's ...

Messenger RNA vaccines against COVID-19 were not detected in human milk, according to a small study by UC San Francisco, providing early evidence that the vaccine mRNA is not transferred to the infant. The study, which analyzed the breast milk of seven women after they received the mRNA vaccines and found no trace of the vaccine, offers the first direct data of vaccine safety during breastfeeding and could allay concerns among those who have declined vaccination or discontinued breastfeeding due to concern that vaccination might alter human milk. The paper appears in JAMA Pediatrics. Research has demonstrated that vaccines with mRNA inhibit transmission ...

Although the risk of a child being admitted to hospital due to COVID-19 is small, a new UK study has found that around 1 in 20 of children hospitalised with COVID-19 develop brain or nerve complications linked to the viral infection. The research, published in The Lancet Child and Adolescent Health and led by the University of Liverpool, identifies a wide spectrum of neurological complications in children and suggests they may be more common than in adults admitted with COVID-19. While neurological problems have been reported in children with the newly described post-COVID condition paediatric inflammatory multisystem syndrome temporally ...

A scientific review has found evidence that a disruption in blood clotting and the first line immune system could be contributing factors in the development of psychosis. The article, a joint collaborative effort by researchers at RCSI University of Medicine and Health Sciences, Cardiff University and the UCD Conway Institute, is published in Molecular Psychiatry. Recent studies have identified blood proteins involved in the innate immune system and blood clotting networks as key players implicated in psychosis. The researchers analysed these studies and developed a new theory that proposes the imbalance of both of these systems leads to inflammation, which in turn contributes to the development of psychosis. The work proposes that alterations ...

Tokyo, Japan - Primary immunodeficiencies, such as severe combined immunodeficiency disease (SCID), occur when the immune system does not work properly, leading to increased susceptibility to various infections, autoimmunity, and cancers. Most of these are inherited and have an underlying genetic causes. A team at TMDU has identified a novel disorder resulting from a mutation in a protein called AIOLOS, which functions through a previously unknown pathogenic mechanism called heterodimeric interference. The gene family known as IKAROS zinc finger proteins (IKZFs) is associated with the development of lymphocyte, a type of white blood cell involved ...

URBANA, Ill. - U.S. corn and soybean varieties have become increasingly heat and drought resistant as agricultural production adapts to a changing climate. But the focus on developing crops for extreme conditions has negatively affected performance under normal weather patterns, a University of Illinois study shows. "Since the 1950s, advances in breeding and management practices have made corn and soybean more resilient to extreme heat and drought. However, there is a cost for it. Crop productivity with respect to the normal temperature and precipitation is getting lower," says Chengzheng Yu, doctoral student in the Department ...

New research led by the University of Cambridge suggests that autism can be detected at 18-30 months using the Quantitative Checklist for Autism in Toddlers (Q-CHAT), but it is not possible to identify every child at a young age who will later be diagnosed as autistic. The results are published today in The BMJ Paediatrics Open. The team at the Autism Research Centre in Cambridge conducted a prospective population screening study of nearly 4,000 toddlers using a parent-report instrument they developed, called the Quantitative Checklist for Autism in Toddlers (Q-CHAT). Toddlers were screened at 18 months and followed up at 4 years. The ...

Northwestern University engineers have developed the first full, three-dimensional (3D), dynamic simulation of a rat's complete whisker system, offering rare, realistic insight into how rats obtain tactile information. Called WHISKiT, the new model incorporates 60 individual whiskers, which are each anatomically, spatially and geometrically correct. The technology could help researchers predict how whiskers activate different sensory cells to influence which signals are sent to the brain as well as provide new insights into the mysterious nature of human touch. The research was published last week in the Proceedings ...

Bat conversations might be light on substance, according to researchers from the University of Cincinnati. Echoes from bats are so simple that a sound file of their calls can be compressed 90% without losing much information, according to a study published in the journal PLOS Computational Biology. The study demonstrates how bats have evolved to rely on redundancy in their navigational "language" to help them stay oriented in their complex three-dimensional world. "If you can make decisions with little information, everything becomes simpler. That's nice because you don't need a lot of complex neural machinery to process and store that information," study co-author Dieter Vanderelst ...

Physicists of the Technische Universität Dresden introduce the first implementation of a complementary vertical organic transistor technology, which is able to operate at low voltage, with adjustable inverter properties, and a fall and rise time demonstrated in inverter and ring-oscillator circuits of less than 10 nanoseconds, respectively. With this new technology they are just a stone's throw away from the commercialization of efficient, flexible and printable electronics of the future. Their groundbreaking findings are published in the renowned journal "Nature Electronics". Poor performance is still impeding the commercialization ...

Researchers at Vanderbilt University Medical Center (VUMC) and the Baylor College of Medicine in Houston, Texas, have taken a big step toward developing targeted treatments and vaccines against a family of viruses that attacks the gastrointestinal tract. Each year in the United States circulating strains of the human norovirus are responsible for approximately 20 million cases of acute gastroenteritis. Hallmark symptoms include severe abdominal cramping, diarrhea and vomiting. Several vaccine candidates are in clinical trials, but it is unclear how effective they will be, given the periodic emergence of novel norovirus variants. Developing ...