A new study in the Journal of the American Chemical Society explores the chemistry as well as the complicated and alarming history of DFDT, a fast-acting insecticide.
"We set out to study the growth of crystals in a little-known insecticide and uncovered its surprising history, including the impact of World War II on the choice of DDT--and not DFDT--as a primary insecticide in the 20th century," said Bart Kahr, professor of chemistry at New York University and one of the study's senior authors.
Discovering solid forms of DFDT
Scientists witnessing the destruction of the natural world must be supported and "allowed to cry", researchers say.
In a letter published in the journal Science, three leading researchers say it is "dangerously misguided" to assume scientists are dispassionate observers.
They say many scientists experience "strong grief responses" to the current ecological crisis, and there are profound risks to ignoring this emotional trauma.
When people become stressed, their bodies can respond by sweating. Now, researchers at the University of Missouri are monitoring how much adolescents severely affected by autism sweat in order to better understand when behavioral issues, such as aggression, are likely to occur.
A study of 429 firearm owners who answered the 2018 California Safety and Wellbeing Survey has identified five distinct types of firearm owners -- early work that may help assess risk and tailor injury prevention strategies to owners preferences and practices.
More than 2,500 California adults answered questions on firearm ownership and exposure to violence and its consequences.
A study published in the journal Neuroimage: Clinical found that patients with Major Depressive Disorder (MDD), who had recovered from symptoms, were able to strengthen some of their brain connections whilst thinking about guilt-evoking memories, thereby increasing their self-esteem.
(SACRAMENTO, Calif.) -- Most Californians find gun safety conversations that take place in the exam room appropriate if a patient has access to a gun and the patient -- or someone in the patient's home -- is at increased risk for firearm-related harm, such as trouble with drugs or alcohol misuse.
New research into the chemistry of the oceans during ice ages is helping to solve a puzzle that has engaged scientists for more than two decades.
At issue is how much of the CO2 that entered the ocean during ice ages can be attributed to the 'biological pump', where atmospheric carbon is absorbed by phytoplankton and sequestered to the seafloor as organisms die and sink.
Solving the puzzle is important to improve the accuracy of climate models and inform understanding of how ocean processes may react to future climate change.
A study led by a psychologist from Trinity College Dublin raises important questions on how mental illness is currently diagnosed and whether these diagnoses accurately reflect the underlying neurobiology of mental illness.
The findings, just published in the leading peer-reviewed medical journal, JAMA Psychiatry, are significant in highlighting the need for more individualised approaches to defining mental illness.
Leesburg, VA, October 9, 2019--An ahead-of-print "Clinical Perspective" article in the March issue of the American Journal of Roentgenology (AJR) summarizing the literature to date details common imaging manifestations of electronic nicotine delivery systems (ENDS)--including e-cigarettes and vaporizers, vape and hookah pens, as well as tank systems.
Newton, Mass. (Oct. 9, 2019) - A home-cooked meal has many benefits, including healthier ingredients and fewer processed foods. But there's another reason to avoid eating out all the time. Preparing meals at home can reduce your exposure to harmful PFAS chemicals that are commonly found in take-out and fast food packaging, according to a new study by researchers at Silent Spring Institute.
(October 9, 2019) - New research looks into the impact police stops have on the mental health of youth. Assistant professors Dylan Jackson, Chantal Fahmy and Alexander Testa in the UTSA Department of Criminology & Criminal Justice collaborated with professor Michael Vaughn in the College for Public Health and Social Justice at St. Louis University to conduct a study that reveals that youth experiencing intrusive police stops are at risk of heightened emotional distress.
Universities' Teaching Excellence Framework (TEF) grades - designed to help students choose where to study - are being boosted for the institutions that highlight employability post-university and student outcomes in their TEF submission reports, according to a new study published in Educational Review.
COLUMBIA, Mo. - Starting kindergarten can be a challenging time for children as many are leaving home and learning to interact with others for the first time. As such, it is important for kindergartners to receive proper support from their teachers.
To classify a death as a suicide, medical examiners and coroners rely on hard evidence, perhaps a suicide note or a gun near the body.
Scientists at the Max Planck Institute for Chemical Physics of Solids in Dresden, Princeton University, the University of Illinois at Urbana-Champaign, and the University of the Chinese Academy of Sciences have spotted a famously elusive particle: The axion - first predicted 42 years ago as an elementary particle in extensions of the standard model of particle physics.