Veículo
Focus Technica
Em 2023: 2 notícias
Desde 1995: 28 notícias
Risk or Relief? Scientists Call for More Research on Antidepressants and Pregnancy
Publicado em 19 janeiro 2023
Brazilian scientists propose conducting experiments using lab-grown mini-brains to study the effects of drugs on fetal brain development.
Depression affects a significant portion of pregnant women worldwide, with estimates ranging from 10% to 16%. While most women can improve with the help of antidepressant medication, the effects of these drugs on fetal brain development are not fully understood.
Brazilian researchers have conducted a review of over 100 scientific articles on the topic [...]
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Quantum Breakthrough: Light Source Produces Two Entangled Light Beams
Publicado em 05 janeiro 2023One potential application: Enhancing the sensitivity of atomic magnetometers used to measure the alpha waves emitted by the human brain. Scientists are increasingly seeking to discover more about quantum entanglement, which occurs when two or more systems are created or interact in such a manner that the quantum states of some cannot be described independently of the quantum states of the others. The systems are correlated, even when they are separated by a large distance. Interest in [...]ver notícia -
Experiments Show Infection of Visceral Fat Cells May Contribute to Severe COVID-19
Publicado em 20 dezembro 2022Two types of adipocytes (fat cells) were infected in the laboratory: one obtained from human stem cells isolated from subcutaneous tissue and the other differentiated from stem cells taken from visceral fatty tissue. Experiments show that visceral fat – fat around the liver, intestines, and other organs, considered a risk factor for cardiovascular disease, diabetes, and high blood pressure – contributes more to severe COVID-19 than subcutaneous fat (under the skin, as in [...]ver notícia -
New Method Converts Greenhouse Gas Into Fuel
Publicado em 01 outubro 2022The new method converts methane gas into liquid methanol. A team of researchers has successfully converted methane into methanol using light and scattered transition metals such as copper in a process known as photo-oxidation. The reaction was the best achieved to date for converting methane gas into liquid fuel at ambient temperature and pressure (25 °C and 1 bar, respectively), according to a study published in the journal Chemical Communications The term bar as a pressure unit comes [...]ver notícia -
Over 200 Million Years Old – Scientists Discover Africa's Oldest Known Dinosaur
Publicado em 27 setembro 2022During two digs in Zimbabwe in 2017 and 2019, a graduate student from Virginia Tech discovered and unearthed the fossil with the assistance of other paleontologists. A new, early dinosaur has been found and named by an international team of paleontologists under the direction of Virginia Tech. The skeleton was discovered by a graduate student in the Virginia Tech Department of Geosciences and other paleontologists over the course of two excavations, in 2017 and 2019. Astonishingly, most of [...]ver notícia -
Scientists Discover That a Certain Nutrient Promotes Anti-Aging
Publicado em 04 setembro 2022According to a clinical trial involving 55 to 70-year-old women, adding this nutrient to the diet can strengthen the body's antioxidant defenses and possibly lower the chance of developing diabetes, high blood pressure, and cardiovascular disease. However, more research is needed to confirm its effect. According to the study, the amino acid taurine could be employed in anti-aging therapies. Our cells produce potentially toxic by-products known as “free radicals” when they [...]ver notícia -
Harvard Scientists Discover That Cold Temperatures Could Help You Lose Weight
Publicado em 03 agosto 2022Brown adipose tissue is activated by the cold to release anti-inflammatory compounds. Over 40% of adult Americans are obese, a complicated condition that raises the risk of diabetes, heart disease, and several types of cancer. By creating low-grade chronic inflammation and the buildup of immune cells in insulin-sensitive tissues, obesity is one factor that can contribute to other health issues. Scientists believe that reversing, or “resolving,” this chronic inflammation might [...]ver notícia -
Experimental Treatment Increases Skin Cancer Survival Rate by 25%
Publicado em 13 julho 2022Experimental treatment with a protein-derived molecule reduced tumor growth and metastasis as well as increased the survival rate by 25% A recent study published in Scientific Reports demonstrates the effectiveness of Rb4, a peptide developed by Brazilian scientists, in combating cancer growth in an animal model, particularly malignant melanoma. The peptide also has the potential to treat drug-resistant tumors. Rb4 causes necrosis in murine melanoma cells and decreases the [...]ver notícia -
Scientists Discover How Certain Genetic Diseases Are Transmitted From Mother to Child
Publicado em 08 março 2022The study could serve as the basis for novel strategies to ensure that future generations are not affected by such diseases. Existing treatments are palliative, aimed at improving quality of life for the patient or delaying progression of the disease. A research article published in the journal Science Advances describes a mechanism that helps explain how certain kinds of genetic disorders known as mitochondrial diseases are transmitted from mother to child. The study it reports could serve [...]ver notícia -
“Schneider’s Marmoset” – New Monkey Species Discovered in Brazilian Amazon
Publicado em 04 outubro 2021“Schneider’s marmoset” is found in the highly threatened, but little-studied forests of Mato Grosso State. team of scientists has discovered a new marmoset species in the Brazilian Amazon. Schneider’s marmoset (Mico schneideri), described in the latest issue of the journal Scientific Reports, is named after professor Horacio Schneider, a pioneer and major contributor to the research of diversity and evolution of monkeys. The discovery was made by a team of researchers [...]ver notícia