The purpose of this video lesson is to expand the student's knowledge …
The purpose of this video lesson is to expand the student's knowledge about enzymes by introducing the antioxidant enzymes that are intimately involved in the prevention of cellular damage and eventual slowing of the aging process and prevention of several diseases. Students will learn that natural antioxidant enzymes are manufactured in the body and provide an important defense against free radicals. The topic of free radical action is introduced, covering how they are constantly generated in living cells both by ''accidents of chemistry'' and also by specific metabolic processes.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Background: In modern animal husbandry, breeders pay increasing attention to improving sow nutrition during pregnancy and lactation to favor the health of neonates. Sow milk is a main food for piglets during their first three weeks of life, which is not only a rich repository of essential nutrients and a broad range of bioactive compounds, but also an indispensable source of commensal bacteria. Maternal milk microorganisms are important sources of commensal bacteria for neonatal gut. Bacteria from maternal milk may serve as an additive to confer a health benefit on the composition of the indigenous microbiota of piglets. Methods: The sow milk microbiota was collected using the culturomics methods of Continuous Culture and Interval Sampling, following by the identification of 16S rDNA gene sequences..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Polyphenols are micronutrients found in a variety of plant-based foods, including red wine, chocolate, and green tea. Daily consumption of polyphenols offers several health benefits. The polyphenol EGCG, found in green tea, possesses anti-inflammatory properties and has been linked to a reduced risk of inflammatory bowel disease (IBD). But one important factor that’s remained underexplored in studies of EGCG is the effect of the gut microbiome. Now, a new study of gut microbes in mice may pave the way for understanding EGCG's anti-inflammatory effects in the intestine. Researchers first confirmed that feeding EGCG to mice with colitis alleviated symptoms of disease. Experiments then showed that EGCG altered the makeup and function of the intestinal microbial community. The team found that EGCG had the same protective and microbiome-altering effects even when given to mice before they developed colitis..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Radiation is a powerful therapy for fighting cancer. But it can prove toxic to tissues in the bone marrow and gastrointestinal tract, a condition known as acute radiation syndrome. In 2017, researchers discovered that transplanting fecal matter from healthy mice to mice with acute radiation syndrome can alleviate radiation toxicity. To find out how, the researchers analyzed fecal pellets from mice receiving radiation to treat tumors. They discovered elevated levels of indole 3-propionic acid, or IPA, a protective antioxidant produced by microbes in the gut, suggesting that IPA is lost following exposure to radiation. Administering IPA orally to irradiated mice recouped this loss. and produced notable improvements in the spleen and thymus of mice with acute radiation syndrome without accelerating tumor growth. The evidence suggests that administering IPA could be a safe way to prevent acute radiation syndrome during radiotherapy without requiring fecal matter transplantation..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
DNA is composed of two strands of nucleotides held together by hydrogen …
DNA is composed of two strands of nucleotides held together by hydrogen bonding. The strands each run from 5' to 3' and run in antiparallel, or opposite, directions from one another.
The anus is the terminal portion of the alimentary tract which communicates …
The anus is the terminal portion of the alimentary tract which communicates with the external environment. Two sphincters control it's aperture. It allows faeces and gas to leave the body. Defeacation is the process where faeces are expelled from the rectum through the anus.
El presente manuscrito es resultado de investigaciones multidisciplinarias bajo diferentes perspectivas científicas-académicas, …
El presente manuscrito es resultado de investigaciones multidisciplinarias bajo diferentes perspectivas científicas-académicas, mediante la confrontación de criterios de diferentes autores bajo un enfoque descriptivo que señala la importancia de ética en varios escenarios actuales como son en la discriminación de la mujer en ambiente laboral, el manejo de los individuos dentro de las organizaciones, dentro de la agricultura al momento de producir y cultivar, como la ética afecta al clima organizacional y lagestión docente dentro del caso de estudio de una universidad, la ética y la responsabilidad social empresarial como reto de las empresas, la discriminación laboral como comportamiento poco ético en el área de recursos humanos, y por ultimo una contrastación de la ética en la publicidad de las empresas. Estos estudios se realizan desde una mirada científica y se la acerca a la realidad ecuatoriana.
Esta guía práctica acompaña la serie de videos Poder estadístico y tamaño …
Esta guía práctica acompaña la serie de videos Poder estadístico y tamaño de muestra en R, de mi canal de YouTube Investigación Abierta, que recomiendo ver antes de leer este documento. Contiene una explicación general del análisis de poder estadístico y cálculo de tamaño de muestra, centrándose en el procedimiento para realizar análisis de poder y tamaños de muestra en jamovi y particularmente en R, usando los paquetes pwr (para diseños sencillos) y Superpower (para diseños factoriales más complejos). La sección dedicada a pwr está ampliamente basada en este video de Daniel S. Quintana (2019).
After emerging from the heart, the aortic artery divides into the right …
After emerging from the heart, the aortic artery divides into the right and left dorsal branches. Each branch feeds into a set of arches which are unique to the embryo. Most higher vertebrates have have 6 pairs of aortic arches. In the mammal the 5th pair do not form. These arches evolve to form some of the structures of the mammalian circulation. The fate of each arch varies.
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