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Risk or relief? Scientists call for more research on antidepressants and pregnancy
Publicado em 19 janeiro 2023
Brazilian scientists propose conducting experiments using mini-brains grown in the laboratory to study the effect of drugs on fetal brain development.
Depression affects a significant proportion of pregnant women worldwide, with an estimated 10% to 16%. While most women can improve with antidepressants, the effects of these drugs on fetal brain development are not fully understood.
Brazilian researchers reviewed more than 100 scientific articles on the topic and concluded that advanced [...]
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A surprising study shows that religion is not the main reason for rejecting evolution in schools
Publicado em 16 janeiro 2023A survey of 5,500 Brazilian and Italian schoolchildren aged 14-16 found that nationality, social perception of science and family income were more influential than religion. The findings are published in PLANE ONE Religion influences high school students' understanding and acceptance of evolutionary theory, but social and cultural factors such as nationality, perception of science and family income are more influential, according to a study of 5,500 Brazilian and Italian students aged [...]ver notícia -
The light source creates two entangled beams of light
Publicado em 05 janeiro 2023One potential application: increasing the sensitivity of atomic magnetometers used to measure alpha waves emitted by the human brain. Scientists are increasingly seeking to learn more about quantum entanglement, which occurs when two or more systems are created or interact in such a way that the quantum states of one cannot be described independently of the quantum states of the others. Systems are correlated even when they are separated by great distances. Interest in the study of such [...]ver notícia -
Experiments show infection of visceral fat cells may contribute to severe form of COVID-19
Publicado em 20 dezembro 2022Two types of adipocytes (fat cells) were infected in the laboratory: one derived from human stem cells isolated from subcutaneous tissue, and the other differentiated from stem cells taken from visceral adipose tissue. Experiments show that visceral fat – the fat around the liver, intestines and other organs that is considered a risk factor for cardiovascular disease, diabetes and high blood pressure – contributes more to severe[{” attribute=””>COVID-19 than [...]ver notícia -
A new way to lose weight can change your metabolism
Publicado em 11 novembro 2022According to new research, protein restriction is effective in the fight against obesity and diabetes. According to a study comparing the effects of protein- and calorie-restricted diets in humans, reducing protein intake may help control metabolic syndrome and some of its main symptoms, such as obesity, diabetes and high blood pressure (hypertension). The results of the study were recently published in the journal Nutrients The term “metabolic syndrome” refers to a group of [...]ver notícia -
The Amazon rainforest is in more danger than we thought
Publicado em 11 outubro 2022A new network analysis models the cascading effects of increasing droughts on South American ecosystems. In the Amazon rainforest, for every three trees that die due to drought, a fourth tree dies, even if it is not directly affected. Simply put, this is what a recent study published in a journal Proceedings of the National Academy of Sciences revealed. The Potsdam Institute for Climate Research team led by Nick Wanderling used network analysis to understand the complex workings of one of [...]ver notícia -
A new method turns greenhouse gas into fuel
Publicado em 01 outubro 2022The new method turns methane gas into liquid methanol. A team of researchers successfully converted methane into methanol using light and diffuse transition metals such as copper in a process known as photooxidation. According to a study published in the journal Chemical communications The term bar as a unit of pressure comes from the Greek word for weight (baros). One bar equals 100,000 Pa (100 kPa), which is close to standard atmospheric pressure at sea level (101,325 Pa). The [...]ver notícia -
More than 200 million years – Scientists have discovered the oldest known dinosaur in Africa
Publicado em 28 setembro 2022During two excavations in Zimbabwe in 2017 and 2019, a Virginia Tech graduate student discovered and excavated the fossil with the help of other paleontologists. A new early dinosaur has been discovered and named by an international team of paleontologists Virginia Institute of Technology. The skeleton was discovered by a Virginia Tech graduate student and other paleontologists during two digs in 2017 and 2019. Amazingly, most of the skeleton is still intact. Named finds of this new [...]ver notícia -
Scientists have discovered that certain nutrients help fight aging
Publicado em 04 setembro 2022According to research, the amino acid taurine can be used in anti-aging therapy. Our cells produce potentially toxic byproducts known as “free radicals” when they break down the oxygen we breathe and the food we consume every day to survive. Some of these molecules have important biological functions, but when there are too many of them, the internal structures of cells can be damaged, impairing the cells’ ability to function and possibly leading to chronic disease. We call [...]ver notícia -
Harvard Scientists Discover That Cold Temperatures Could Help You Lose Weight
Publicado em 02 agosto 2022Cold Exposure Activates Brown Adipose Tissue To Produce Anti-Inflammatory Moleculesver notícia