Current Blood Flow News and Events | Page 3

Current Blood Flow News and Events, Blood Flow News Articles.
Sort By: Most Relevant | Most Viewed
Page 3 of 25 | 1000 Results
New phase of modeling the viscous coupling effects of multiphase fluid flow
Researchers led by Kyushu University found a way to incorporate key phenomena called viscous coupling effects into models of multiphase flow in porous materials. The technique combines two approaches--pore network modeling and the lattice Boltzmann method--to provide detailed pore-scale information and good computational efficiency. The work could have implications for many applications that involve multiphase flow in porous materials, such as oil recovery and carbon dioxide storage. (2020-11-16)

Additional heart imaging valuable for women with unexplained heart attacks
Combining diagnostic imaging methods can detect the underlying cause of heart attack in women who did not have blocked arteries. This international, diagnostic, prospective, observational study suggested that additional heart imaging is feasible and has the potential to guide medical therapy to prevent subsequent heart attacks. (2020-11-14)

Possible 1,000-kilometer-long river running deep below Greenland's ice sheet
Computational models suggest that melting water originating in the deep interior of Greenland could flow the entire length of a subglacial valley and exit at Petermann Fjord, along the northern coast of the island. Updating ice sheet models with this open valley could provide additional insight for future climate change predictions. (2020-11-12)

Brain metastases cause severe brain damage that can be inhibited by treatment
By using a specific treatment to override this activation, the researchers were able to return cerebrovascular flow to healthy levels. This improvement in blood flow around the metastases can limit the neurological deterioration associated with the progression of this disease and improve the otherwise poor life expectancy of these patients. (2020-11-12)

Modelling microswimmers for drug delivery
An international group of theoretical physicists led by Abdallah Daddi-Moussa-Ider from Düsseldorf, Germany, has modelled the motion of microscopic, motile bodies - either powered micro-machines or living cells - in viscous liquid drops, using the Navier-Stokes equations. This work, which has applications in materials science and medicine, is now published in EPJ E. (2020-11-11)

New source of lymphatic system leak discovered in children with rare open heart surgery complication
Interventional radiologists with Nemours Children's Health System have identified a new source of abnormal lymphatic flow between the liver and the lungs that may be responsible for some cases of plastic bronchitis. Plastic bronchitis is a rare but serious late complication in patients with congenital heart disease who had Fontan surgery. A report detailing the discovery of this fluid leak, and successful treatment of two cases was published in European Heart Journal. (2020-11-11)

The mental state of flow might protect against harmful effects of quarantine
A survey of over 5,000 people in Chinese cities affected by COVID-19 in early 2020 suggests that people who quarantined for a longer period of time generally experienced poorer well-being--but that experiencing the mental state of flow reduced or eliminated that link. Kate Sweeny and colleagues at the University of California, Riverside, U.S., Central China Normal University, China and Nanjing University, China and colleagues present these findings in the open-access journal PLOS ONE on November 11, 2020. (2020-11-11)

Protein in blood may predict prognosis, recovery from stroke
Researchers at Mayo Clinic in Florida and collaborators have found that a biomarker in the blood may determine the extent of brain injury from different types of strokes and predict prognosis in these patients. Their findings are reported in Science Translational Medicine. (2020-11-11)

Valves on N95 masks do not filter exhaled droplets
Matthew Staymates, fluid dynamicist at the National Institute of Standards and Technology, is studying different mask types to determine which are the most effective at reducing disease transmission. In Physics of Fluids, he describes exploring the basic flow dynamics of N95 masks with or without exhalation valves. To do this, he generates stunning video from his schlieren imaging, a method to visualize the fluid flow away from the surface of an object, and light scattering. (2020-11-10)

Tracking down the causes of heart attack
Heart attacks strike suddenly and have a range of different triggers. Researchers from Charité - Universitätsmedizin Berlin and the German Centre for Cardiovascular Research (DZHK) were able to uncover a further underlying cause. Studying arterial deposits (plaque) in patients with acute coronary syndrome, the researchers found that, in some patients, these were characterized by activated immune cells which, as a result of altered flow conditions within the vessel, had accumulated on the interior arterial wall, causing damage to the arterial lining. (2020-11-10)

New medication may treat underlying causes of hypertrophic cardiomyopathy
Mavacamten, a new investigational cardiac medication, may improve heart function for people with thickened heart muscle leading to obstructed blood flow through the heart, a condition known as obstructive hypertrophic cardiomyopathy. The treatment appears to improve heart structure, reduce cardiac filling pressures (decrease measures of stiffness) and restore normal mitral valve motion. (2020-11-09)

Rapid test shows 'solid performance' for diagnosing infection around joint implants
The recently FDA-authorized alpha-defensin lateral flow test is a highly accurate, ten-minute test for diagnosis of periprosthetic joint infection (PJI) - a serious and costly complication of total joint replacement, reports a study in The Journal of Bone & Joint Surgery. The journal is published in the Lippincott portfolio in partnership with Wolters Kluwer. (2020-11-09)

Recipe for a storm
Turbulence is an omnipresent phenomenon - and one of the great mysteries of physics. A research team from the University of Oldenburg in Germany has now succeeded in generating realistic storm turbulence in the wind tunnel of the Center for Wind Energy Research (ForWind). (2020-11-04)

Noise reduction via intermittent control by utilizing a plasma actuator
A research team at Toyohashi University of Technology developed a method for reducing aerodynamic noise via plasma. Cavity flow, such as the flow around car gaps of high-speed trains, often radiates aerodynamic noise. A plasma actuator inducing flow was applied to suppress this noise. By periodically switching off the power of the plasma actuator, a higher reduction in sound pressure level was observed when compared with continuous operation under the same power consumption. (2020-11-04)

Squid jet propulsion can enhance design of underwater robots, vehicles
Squids use a form of jet propulsion that is not well understood, especially when it comes to their hydrodynamics under turbulent flow conditions. Discovering their secrets can help create new designs for bioinspired underwater robots, so researchers are exploring the fundamental mechanism. They describe their numerical study in Physics of Fluids; among their discoveries, they found that thrust production and efficiency are underestimated within laminar, or nonturbulent, flows. (2020-11-03)

New cause of COVID-19 blood clots identified
A new study reveals that COVID-19 triggers production of antibodies circulating through the blood, causing clots in people hospitalized with the disease. (2020-11-02)

Melding biology and physical sciences yields deeper understanding of cancer
An evolving understanding of cancer that incorporates the physical properties of tumors and their surrounding tissues into existing biologic and genetic models can direct cancer researchers down previously uncharted avenues, potentially leading to new drugs and new treatment strategies, say investigators from Massachusetts General Hospital, Harvard Medical School (HMS) and the Ludwig Center at HMS. (2020-10-30)

New ancient genomes reveal a complex common history of dogs and humans
Newly sequenced whole genomes of ancient dogs reveal a complicated genetic legacy that reflects a long, shared history with humans spanning more than 11,000 years into the past. (2020-10-29)

Specific and rapid expansion of blood vessels
Upon a heart infarct or stroke, rapid restoration of blood flow, and oxygen delivery to the hypo perfused regions is of eminent importance to prevent further damage to heart or brain. Arterial diameter is a critical determinant of blood flow conductance. Scientists of the Karlsruhe Institute of Technology (KIT) have now discovered a novel mechanism to structurally increase arterial diameter by selectively increasing the size of arterial endothelial cells, thereby allowing rapid increases in flow. (2020-10-28)

Age and pre-existing conditions increase risk of stroke among COVID-19 patients
Fourteen out of every 1,000 COVID-19 patients admitted to hospital experience a stroke, a rate that is even higher in older patients and those with severe infection and pre-existing vascular conditions, according to a report published this week. (2020-10-28)

Coastal Greenland reshaped as Greenland ice sheet mass loss accelerates
Ice loss from the Greenland Ice Sheet has accelerated significantly over the past two decades, transforming the shape of the ice sheet edge and therefore coastal Greenland. (2020-10-27)

Ketamine, a painkiller used by the army, does not impair tolerance to blood loss
A low dose of ketamine, administered intravenously, does not alter a healthy human's tolerance to blood loss. In other words, if someone was given ketamine to kill pain associated with a battlefield injury, they would be able to tolerate blood loss just as well as someone who did not received this pain killer. (2020-10-21)

Researchers use gold nanorod scattering to identify immune system's 'killer and savior'
Researchers have utilized the scattering of gold nanorods to identify M1 and M2 macrophages. Further development of this technique will lead to a new point of care or a biopsy tool which can predict the stages of manifestation of diseases like cancer, atherosclerosis, and fibrosis just from the simple tissue fluids or blood samples. (2020-10-20)

New evidence to guide the practice of blood transfusions in children with severe malari
Blood transfusions increase the survival of children admitted to the hospital with complications by severe malaria, and could be beneficial even at higher haemoglobin levels than those currently recommended. These are the main findings of a study led by ISGlobal, a centre supported by ''la Caixa'' Foundation, and published in The Lancet Haematology. (2020-10-19)

USC study reveals one-two punch of symptoms that exacerbate Alzheimer's
A new Alzheimer's study found that impaired blood flow in the brain is correlated with the buildup of tau tangles, a hallmark indicator of cognitive decline.The work suggests that treatments targeting vascular health in the brain -- as well as amyloid plaques and tau tangles -- may be more effective in preserving memory (2020-10-16)

When honey flows faster than water
Physicists surprised to find that in specially coated tubes, the more viscous a liquid is, the faster it flows (2020-10-16)

Study reveals kidney disease or injury is associated with much higher risk of mortality for COVID-19 patients in ICU
New research published in Anaesthesia (a journal of the Association of Anaesthetists) reveals the much higher risk of mortality faced by COVID-19 patients in intensive care who have chronic kidney disease (CKD) or, those who develop new (acute) kidney injury (AKI) as a result of developing COVID-19. (2020-10-16)

LiU researchers first to develop an organic battery
Researchers at the Laboratory of Organic Electronics, Linköping University, have for the first time demonstrated an organic battery. It is of a type known as a 'redox flow battery', with a large capacity that can be used to store energy from wind turbines and solar cells, and as a power bank for cars. An article now published in Advanced Functional Materials. (2020-10-15)

Research could change how blood pressure is managed in spinal cord injury patients
New research from the International Collaboration on Repair Discoveries (ICORD) challenges the current standard for managing blood pressure in people with spinal cord injury (SCI). (2020-10-15)

Studies offer new evidence for possible link between blood type & COVID-19 susceptibility
Two studies published today in Blood Advances suggest people with blood type O may have a lower risk of COVID-19 infection and reduced likelihood of severe outcomes, including organ complications, if they do get sick. (2020-10-14)

Cognitive behavioral therapy normalizes brain abnormality in OCD patients
UCLA scientists and colleagues studying the effects of cognitive behavioral therapy (CBT) discovered an abnormality in the brains of people with obsessive compulsive disorder (OCD) that may help to predict who is most likely to respond to CBT. (2020-10-13)

Revealing the reason behind jet formation at the tip of laser optical fiber
When an optical fiber is immersed in liquid, a high temperature, high speed jet is discharged. Researchers expect this to be applied to medical treatment in the future. Now, a research team from Russia and Japan has explored this phenomenon further and revealed the reasons behind the jet formation. (2020-10-12)

Brain regions with impaired blood flow have higher tau levels
In Alzheimer's disease, impaired blood flow to brain regions coincides with tau protein buildup. This relationship strengthens as cognition declines, according to new research published in JNeurosci. (2020-10-12)

Scientists discover mosquitoes' unique blood-taste detectors
Scientists aren't sure how mosquitoes sense taste of blood, or how they know that this, of all things, is something to gorge on. Nothing else, not even sweet nectar, makes them pump as ferociously as when they're draining our veins. New research identifies a unique group of neurons that don't care about simple tastes like sweet or salty. Rather, they activate only when sugar, salt, and other components of blood are all present at once. (2020-10-12)

Musical training can improve attention and working memory in children - study
Musically trained children perform better at attention and memory recall and have greater activation in brain regions related to attention control and auditory encoding. (2020-10-08)

Cortex-wide variation of neuronal cellular energy levels depending on the sleep-wake states
The brain is assumed to exert homeostatic functions to always keep the cellular energy status constant, this has not been proven. Researchers at Tokyo Metropolitan Institute of Medical Science discovered that cortical neuronal intracellular concentrations of ATP, the major cellular energy metabolite, greatly decreased during REM sleep, despite a simultaneous increase in cerebral hemodynamics for energy supply, compared with waking in mice. These indicate that cerebral energy metabolism may not always meet neuronal energy demands. (2020-10-07)

Aerodynamicists reveal link between fish scales and aircraft drag
A new research study conducted by City, University of London's Professor Christoph Bruecker and his team, has revealed that fish scale arrays generate a streaky base flow on the surface of the animal which yields important clues into reducing drag - the aerodynamic force that opposes an aircraft's motion through the air - by more than 25 percent. (2020-10-07)

Could arm squeezes with blood pressure cuffs help the brain recover after stroke?
People who are given clot-busting drugs after a stroke may recover better if they also are given a therapy called remote ischemic postconditioning, according to a new study published in the October 7, 2020, online issue of Neurology®, the medical journal of the American Academy of Neurology. Remote ischemic conditioning is when blood flow, and the oxygen it carries, is stopped and then restored repeatedly by blood pressure cuffs worn on the arms. (2020-10-07)

Pregnant women with severe COVID-19 face additional risks and early delivery
Pregnant women with severe or critical COVID-19 and their unborn infants face increased health risks before and after delivery but those with mild cases had similar outcomes compared to those who were uninfected, a Rutgers Robert Wood Johnson Medical School study finds. (2020-10-07)

New method for in utero 4D imaging of baby hearts may aid diagnosis of congenital heart disease
Researchers at King's College London have developed a new method for helping detect congenital heart disease of a baby in pregnant mothers using MRI. Existing in-utero approaches are compromised by fetal motion, but the novel method corrects the motion to present 4D visualizations of the heart depicting major vessels and blood flow circulation. With further development, the method could become a new tool for aiding diagnosis of congenital heart disease where conventional methods like ultrasound might fail. (2020-10-05)

Page 3 of 25 | 1000 Results
   First   Previous   Next      Last   
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.