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Category: health – Page 144

The soot produced by unburnt hydrocarbon flames is the second largest contributor to global warming, while also harming human health. Researchers have developed state-of-the-art, high-speed imaging techniques to study turbulent flames, yet they are limited to an imaging rate of million-frames-per-second. Physicists are therefore keen to obtain a complete picture of flame-laser interactions via single-pulse imaging.

In a new report published in Light: Science & Applications, Yogeshwar Nath Mishra and a research team at the Caltech Optical Imaging Laboratory, the NASA Jet propulsion lab, department of physics, and the Institute of Engineering Thermodynamics in the U.S., and Germany, used single-shot laser-sheet comprised ultrafast photography per billion frames per second, for the first time, to observe the dynamics of laser-flames.

The team noted laser-induced incandescence, elastic light scattering and the fluorescence of soot precursors such as polycyclic aromatic hydrocarbons in , with a single nanosecond laser pulse. The research outcomes provide strong experimental evidence to support soot inception and growth mechanisms in flames. Mishra and the team combined a variety of techniques to probe the short-lived species in turbulent environments to unravel the mysteries of hot plasma, nuclear fusion and sonoluminescence.

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Rational Virology Research For Human Health & Pandemic Prevention — Dr. Felicia Goodrum Sterling, Ph.D. Professor, Department of Immunobiology, The University of Arizona.

Dr. Felicia Goodrum, Ph.D. (https://profiles.arizona.edu/person/fgoodrum) is Interim Associate Department Head and Professor of Immunobiology, as well as Professor, BIO5 Institute, Cellular and Molecular Medicine, Molecular and Cellular Biology, Cancer Biology And Genetics Graduate Interdisciplinary Programs, at the University of Arizona.

Dr. Goodrum earned her Ph.D. from Wake Forest University School of Medicine studying cell cycle restrictions to adenovirus replication and then trained as a postdoctoral fellow at Princeton University in the laboratory of Dr. Thomas Shenk studying human cytomegalovirus latency.

Dr. Goodrum joined the faculty at the University of Arizona in 2006, and her long-standing research focus is to understand the molecular virus-host interactions important to human cytomegalovirus (CMV) latency and persistence in the host. She has focused on identifying viral and host determinants mediating the switch between latent and replicative states. The goal of her research program is to define the mechanistic underpinnings of HCMV latency and reactivation to lay the foundation for clinical interventions to control CMV disease in all settings.

Dr. Goodrum is the recipient of the Howard Temin Award from the National Cancer Institute, the Pew Scholar in Biomedical Sciences Award, and the Presidential Award for Early Career Scientists and Engineers.

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The man may have acquired this very rare infection after rinsing his sinuses with tap water, the Florida Department of Health in Charlotte County said in a news release.

While health officials continue to investigate the cause of the Naegleria fowleri infection, they emphasized that it can’t be contracted from drinking tap water.

These infections only happen when contaminated water enters through the sinuses, officials said.

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Poor sleep could lead to between two and seven years worth of heightened heart disease risk and even premature death, according to a new study led by researchers at the University of Sydney in collaboration with Southern Denmark University.

The study analyzed data from more than 300,000 middle-aged adults from the UK Biobank and found that different disturbances to sleep are associated with different durations of compromised later in life compared to healthy sleepers.

In particular, men with clinical sleep-related breathing disorders lost nearly seven years of cardiovascular disease-free life compared to those without these conditions, and women lost over seven years. Importantly, even general , such as insufficient sleep, insomnia complaints, snoring, going to bed late, and is associated with a loss of around two years of normal heart health in men and women.

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A team of researchers from Michigan State University’s College of Veterinary Medicine has made a discovery that may have implications for therapeutic gene editing strategies, cancer diagnostics and therapies and other advancements in biotechnology.

Kathy Meek, a professor in the College of Veterinary Medicine, and collaborators at Cambridge University and the National Institutes of Health have uncovered a previously unknown aspect of how DNA double-stranded breaks are repaired.

A large protein kinase called DNA-PK starts the DNA repair process; in their new report, two distinct DNA-PK protein complexes are characterized, each of which has a specific role in DNA repair that cannot be assumed by the other.

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The novel method could form a crucial part of NASA’s plans to establish a permanent human presence on the moon.

You may not know that lunar dust poses a real problem to NASA as it aims to establish a permanent crew presence on the moon with its upcoming Artemis missions.

Now, though, a new liquid nitrogen spray developed by Washington State University researchers was able to remove virtually all of the simulated moon dust from a space suit during tests, a press statement reveals.

NASA

Moondust is largely made of small particles that can damage spacesuits, machinery, and equipment. In future habitats, it may even pose a health risk by damaging astronauts’ lungs.

Continue reading “New liquid nitrogen spray could help NASA solve its lunar dust problem” | >