Culture
Approximately 5% of people with Covid-19 progress to a severe or critical form, including the development of severe pneumonia that progresses to acute respiratory distress syndrome. While these forms sometimes occur early in the course of the disease, clinical observations generally describe a two-stage progression of the disease, beginning with a mild to moderate form, followed by respiratory aggravation 9 to 12 days after the onset of the first symptoms. This sudden progression suggests deregulation of the host inflammatory response.
Concern over the risk of infection and financial strain. More people will develop stress, irritability, anxiety and depression...
The high energy consumption of artificial neural networks' learning activities is one of the biggest hurdles for the broad use of Artificial Intelligence (AI), especially in mobile applications. One approach to solving this problem can be gleaned from knowledge about the human brain. Although it has the computing power of a supercomputer, it only needs 20 watts, which is only a millionth of the energy of a supercomputer. One of the reasons for this is the efficient transfer of information between neurons in the brain.
With over 1.2 million people affected in Germany alone and over 50 million people worldwide, Alzheimer's disease, also referred to simply as Alzheimer's, is one of the greatest medical and social challenges of our time. Due to pathological changes in the brain, patients become increasingly forgetful and disoriented as the disease progresses. In the worst cases, even close relatives are no longer recognized and simple household tasks can no longer be carried out independently. This means care is needed for those affected.
Curcumin, a natural compound found in the spice turmeric, could help eliminate certain viruses, research has found.
A study published in the Journal of General Virology showed that curcumin can prevent Transmissible gastroenteritis virus (TGEV) - an alpha-group coronavirus that infects pigs - from infecting cells. At higher doses, the compound was also found to kill virus particles.
People with early-stage glaucoma see the contrast of visible objects in a very similar way to people without the condition, a new study has shown.
Research by the University of Bradford (UK) demonstrated that the brain compensates for the changes in the eye caused by glaucoma, when looking at objects with everyday levels of contrast. The findings add to our understanding of why glaucoma patients report few early symptoms of the disease and may not seek testing until their disease is more advanced.
A Korean research team has developed a key technology for the mass-production of bio-aviation fuels. The team, led by Dr. Jeong-Myeong Ha of the Clean Energy Research Center at the Korea Institute of Science and Technology (KIST), has announced its successful development of a technology that can be used to mass-produce aviation-grade fuels from wood wastes.
Molecular biologists and bioengineers at the University of California San Diego have unraveled key mechanisms behind the mysteries of aging. They isolated two distinct paths that cells travel during aging and engineered a new way to genetically program these processes to extend lifespan.
The research is described July 17 in the journal Science.
Two thirds of children and young people have their first sexual activity unexposed to herpes but risk catching it in adulthood, say researchers
Fewer people are being exposed to herpes simplex type 1 - also known as oral herpes - in their childhood and the prevalence amongst the population in Europe is falling by 1% per year, suggests research published in the journal BMJ Global Health.
The prevalence of the virus, which often manifests itself with cold sores, appears to be declining in younger people but it could be increasingly likely to be transmitted sexually.
Over one in four adults over the age of 65 may have chronic kidney disease (CKD) defined as a reduced kidney function. While serum creatinine remains the most practical biomarker for estimation of kidney function because it is part of metabolic panels, other biomarkers such as cystatin C may be more informative; unlike creatinine, cystatin C is not influenced by muscle mass or function. As people age, muscle mass declines and this may influence the estimation of kidney function based on serum creatinine and it may influence frailty and falls. Dr.
The DNA-cutting proteins central to CRISPR-Cas9 and related gene-editing tools originally came from bacteria, but a newfound variety of Cas proteins apparently evolved in viruses that infect bacteria.
The new Cas proteins were found in the largest known bacteria-infecting viruses, called bacteriophages, and are the most compact working Cas variants yet discovered -- half the size of today's workhorse, Cas9.
Osaka, Japan — Phantom-limb pain is as mysterious as the name implies. The vast majority of amputees experience "phantom-limb" sensations that make them feel their missing limb is still part of their body. The cause is still unknown, and 50% to 80% of the cases, the sensations are painful. With no established treatments or medication, phantom-limb pain can have a large impact on the quality of life and recovery for amputees.
Water, so ordinary and so essential to life, acts in ways that are quite puzzling to scientists. For example, why is ice less dense than water, floating rather than sinking the way other liquids do when they freeze?
Now a new study provides strong evidence for a controversial theory that at very cold temperatures water can exist in two distinct liquid forms, one being less dense and more structured than the other.
* Even if all contacts are successfully traced, a delay of three days or more between symptom onset and testing will not reduce onward transmission of the virus sufficiently to control further spread, according to modelling study
* In the best-case scenario, with zero delays and at least 80% of contacts traced, the R number is reduced from 1.2 to around 0.8, and 80% of onward transmission per person diagnosed could be prevented
* For conventional contact tracing to work, test results need to be delivered within a day of an individual developing symptoms
WASHINGTON, July 16, 2020--Since 2011 the U.S. Department of Education has published two annual lists of higher education institutions with the highest percentage changes in tuition and fees and average net price. A study published today found that inclusion in either of these College Affordability and Transparency Center (CATC) lists does not affect institutional pricing policies or students' enrollment decisions. The findings appear in Educational Evaluation and Policy Analysis, a peer-reviewed journal of the American Educational Research Association.