Culture

WASHINGTON, July 26, 2018 -- Air conditioners pull off the seemingly magical feat of making the air inside a home, car or shopping mall deliciously chilly. The source of that sweet relief is chemistry. In this video, Reactions explains how refrigerants and physical chemistry combine to help you beat the summer heat: https://youtu.be/PT38gaGciP4.

ATLANTA--A thin gap has been discovered on the Hertzsprung-Russell Diagram (HRD), the most fundamental of all maps in stellar astronomy, a finding that provides new information about the interior structures of low mass stars in the Milky Way Galaxy, according to a study led by astronomers at Georgia State University.

Findings from a Rochester Institute of Technology study provide further evidence that the outskirts of spiral galaxies host massive black holes. These overlooked regions are new places to observe gravitational waves created when the massive bodies collide, the authors report.

The study winds back time on massive black holes by analyzing their visible precursors--supernovae with collapsing cores. The slow decay of these massive stars creates bright signatures in the electromagnetic spectrum before stellar evolution ends in black holes.

Sexual minorities in the US are less likely to be in work or to have health insurance than their straight peers, reveal the results of a large survey, published in the online journal BMJ Open.

They also have poorer health and quality of life.

These disparities may be even wider as the study sample was predominantly white and from relatively affluent backgrounds, suggest the researchers.

Bottom Line: A panel of 19 microRNAs identified using next-generation sequencing could categorize indeterminate thyroid nodule samples into malignant and benign.

Journal in Which the Study was Published: Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

A new gene associated with disease severity in models of rheumatoid arthritis has been identified by researchers at the Icahn School of Medicine at Mount Sinai. The discovery could provide a new pathway for treatment and a way to measure the prognosis of patients diagnosed with the autoimmune condition.

A plant's defense systems help each other. When one system fails, another one can - at least in part - take over.

Researchers at the Norwegian University of Science and Technology 's (NTNU) Department of Biology have been collaborating with colleagues from Imperial College London and The Sainsbury Laboratory to discover more about how plants defend themselves. Their results have been published in the 26 June 2018 issue of Science Signaling.

Identifying the danger

Professor Arne Skerra of the Technical University of Munich (TUM) has succeeded for the first time in using gaseous CO2 as a basic material for the production of a chemical mass product in a biotechnical reaction. The product is methionine, which is used as an essential amino acid, particularly in animal feed, on a large scale. This newly developed enzymatic process could replace its current petrochemical production. The results have now been published in the journal Nature Catalysis.

Sophia Antipolis, July 26, 2018: Older, overweight scuba divers are being urged to shed pounds to avoid an underwater heart attack. That's the advice from a large study out today in the European Journal of Preventive Cardiology, a publication of the European Society of Cardiology (ESC).1

It is more likely that you have seen a habu snake in a bottle of local rice liquor Awamori, in Okinawa, than that you've spotted one slithering by the wayside. Even so, habus are very common in the Ryukyu islands of which Okinawa is a part. Okinawa is home to three species of habu; the Okinawan habu (Protobothrops flavoviridis), endemic to the Ryukyu islands, is highly venomous.

University of Manchester and Salford Royal NHS Trust scientists have developed a lamp which could treat chronic ulcers with light.

The Arthritis Research UK funded trial led by Dr Michael Hughes tested the therapy - which combines infrared, red and ultraviolet light - on finger ulcers caused by a condition called systemic sclerosis, where the immune system attacks the body's fingers and toes.

Alexandria, Va., USA - At the 96th General Session of the International Association for Dental Research (IADR), held in conjunction with the IADR Pan European Regional (PER) Congress, Paula Moynihan, Newcastle University, England, gave an oral presentation titled "Relationship Between Amount and Frequency of Sugars Intake by Children." The IADR/PER General Session & Exhibition is in London, England at the ExCeL London Convention Center from July 25-28, 2018.

The disparity between the number of sexual partners reported by men and women can largely be explained by a tendency among men to report extreme numbers of partners, and to estimate rather than count their lifetime total, a new study in The Journal of Sex Research finds.

Together with gender differences in attitudes towards casual sex, this explains roughly two-thirds of the notorious 'gender gap' found in many sex surveys.

TORONTO, July 25, 2018 - Engaging patients in the redesign of health care services can lead to reduced hospital admissions and more efficient and effective health care, a study led by a St. Michael's Hospital researcher suggests.

In their study, Engaging Patients to Improve Quality of Care: A Systematic Review, published today in Implementation Science, lead authors Dr. Yvonne Bombard and Dr. G. Ross Baker concluded that active engagement of patients can inform education, tools, planning and policy, and enhance health care service delivery and governance.

When people are able to vote they are more likely to pressure leaders to become involved in foreign affairs more aggressively. And so democracies are more likely to militarily intervene in other countries. Since such other countries could be autocracies, dictatorships are far less likely to be involved in international disputes than leaders of republics, suggests a new paper published by the American Journal of Political Science.