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Em 2025: 0 notícias
Desde 1995: 9 notícias
Sanitized Ready-To-Eat Salad May Contain Disease-Causing Bacteria: Research
Publicado em 31 agosto 2023
Washington: A review paper published in the journal Foods describes a study that provides an overview of studies on minimally processed vegetables (MPVs), with a particular focus on the Brazilian market.
Data is presented on hygiene indicators and pathogenic microorganisms, especially Escherichia coli (the main indicator of fecal contamination), Salmonella spp., and Listeria monocytogenes, with prevalence rates ranging from 0.7 per cent to 100 per cent, 0.6 per cent to 26.7 per cent, and 0.2 [...]
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Daily Rhythm Detected For Cerebral Blood Flow In Stroke Patients
Publicado em 18 fevereiro 2023Washington: Strokes are a leading cause of morbidity and mortality in the United States and globally. Several environmental and biological factors are known to influence stroke risk and outcome. A new study led by investigators from Brigham and Women's Hospital, a founding member of the Mass General Brigham healthcare system, analyzed the cerebral blood flow (CBF) regulation of individuals who had experienced strokes. The team found that cerebral autoregulation (CA) -- one of the key [...]ver notícia -
New gadget identifies COVID-19 antibodies in five minutes
Publicado em 30 novembro 2022Rapid, low-cost, and accurate tests are still required for epidemiological surveillance and healthcare services to monitor and contain the spread of SARS-CoV-2. Brazilian researchers have contributed to this field’s efforts by creating an electrochemical immunosensor that identifies antibodies against the virus. The innovation is described in an article published in the journal ACS Biomaterials Science and Engineering. In search of a novel diagnostic method, the group opted for a [...]ver notícia -
How post-Covid loss of smell or taste affects cognition
Publicado em 18 agosto 2022Sao Paulo: Patients with the most severe post-Covid smell and taste disorders are likely to perform worst in cognitive tests, especially when these involve memory, finds a study strengthening the hypothesis that loss of smell could be an early sign of the impending onset of Alzheimer's disease. In the study, a group of Brazilian researchers analysed clinical data from 701 patients hospitalised for moderate or severe Covid-19. The results, reported in European Archives of Psychiatry [...]ver notícia -
Scientists Discover New Technique To Convert Methane Gas Into Liquid Methanol
Publicado em 05 agosto 2022Washington: According to new research, scientists have discovered a new technique of converting methane gas into methanol using light and dispersed transition metals such as copper. As per a study published in Chemical Communications, the reaction was the best obtained to date for the conversion of methane gas into liquid fuel under ambient conditions of temperature and pressure (25 °C and 1 bar respectively). The term bar as a unit of pressure derives from the Greek word for weight [...]ver notícia -
Omicron's mutations explain why it is less severe among vaccinated
Publicado em 09 fevereiro 2022Sao Paulo, Feb 9 (IANS) Brazilian researchers have found that Omicron has mutations detected in previous variants and that is the reason why it is less severe among the vaccinated. Omicron emerged as a variant of concern only in November 2021, but all the mutations it contains, except one, had been described before that. Researchers at the Federal University of Sao Paulo (UNIFESP) in Brazil attribute this factor to the effectiveness of the existing vaccines against the variant, reflected [...]ver notícia -
Study finds gravitational action of sun, moon influence animals, plants
Publicado em 08 janeiro 2022Washington: A team of international researchers has shed light on the fact that the rhythms of activity in all biological organisms, both plants, and animals, are closely linked to the gravitational tides created by orbital mechanics of the Sun-Earth-Moon system. The findings by Cristiano de Mello Gallep at the University of Campinas (UNICAMP) in the state of Sao Paulo, Brazil, and Daniel Robert at the University of Bristol in the United Kingdom are published in the Journal of Experimental [...]ver notícia -
Soybean, linseed oils in cows' diet improve milk quality, researchers affirm
Publicado em 08 maio 2021Brasilia: Brazilian researchers show that the inclusion of soybean and linseed oils in the diet of dairy cows made the fatty acid content of their milk even healthier for human nutrition. It also increased the proportions of omega-6 and omega-3, which in the right balance play a key role in preventing cardiovascular diseases. Cardiovascular diseases are one of the world's main public health problems. In Brazil, they are among the foremost causes of death. Each year some 300,000 Brazilians [...]ver notícia -
This Plastic Film Used In Food Packaging Can Inactivate Covid Virus
Publicado em 20 novembro 2020Rio de Janeiro, Nov 20 (IANS) Researchers have claimed that transparent stretchable plastic (PVC) film used in packaging meat, fruit, other foods, and to protect surfaces, can inactivate the novel Coronavirus responsible for the Covid-19 outbreak worldwide. Marketed by Brazilian plastics manufacturer Alpes, the material contains silver and silica nanoparticles, a technology developed and licensed by Nanox. In tests conducted at the University of Sao Paulo's Biomedical Sciences Institute [...]ver notícia