Oogenesis in a freshwater large murrel, Channa striatus (Bloch)

Em Channa striatus, a oogênese foi dividida em três fases: 1) fase primaria de crescimento - caracterizada por aumento mitótico do número de oogônias, 2) fase vitelogênica que envolve dois tipos de deposição de vitelo; vesículas vitelínicas (contêm substâncias glicoprotéicas) e glóbulos vitelínicos (contêm substâncias ligoprotéicas) e 3) fase de maturação - inclui a formação de oocitos maduros. 0 significado funcional de diferentes estágios em outros teleósteos também foi discutido

Tinospora cordifolia (GILOY): A MAGICAL SHRUB

Medicinal plants have been used as natural medicines, since prehistoric times because of the presence of natural chemical constituents. Among them Tinospora cordifolia has a wide array of bioactive principles as well as it has been proven medicinally important plant, have not received considerable scientific attention. The plant is commonly used as traditional ayurvedic medicine and has several therapeutic properties such as jaundice, rheumatism, urinary disorder, skin diseases, diabetes, anemia, inflammation, allergic condition, anti-periodic, radio protective properties, etc. A special focus has been made on its health benefits in treating endocrine and metabolic disorders and its potential as an immune booster. The stem of this plant is generally used to cure diabetes by regulating level of blood glucose. T. cordifolia is well known for its immunomodulatory        response. This property has been well documented by scientists. A large variety of compounds which are responsible for immunomodulatory and cytotoxic effects are 11-hydroxymuskatone, N-methyle-2-pyrrolidone, Nformylannonain, cordifolioside A, magnoflorine, tinocordioside and syringin. Root extract of this plant has been shown a decrease in the regular resistance against HIV. The active principles from T. cordifolia enhance host immune system by increasing immunoglobulin and blood leukocyte levels and by the stimulation of stem cell proliferation. Tinospora cordifolia has been used in indigenous systems of medicine, as indicated in various classical texts of Ayurvedic System of Medicine, viz. Charak, Sushrut and Ashtang Hridaya and other ancient treaties

Biological action of Piper nigrum - the king of spices

Piper nigrum - the king of spices is originated in the Western Ghats of India. It has gained a global consideration because of its volume in the spice industry. It contains major pungent alkaloid piperine which is known to possess many interesting pharmacological actions. Medicinally black pepper can be used digestive disorder like large intestine toxins, different gastric problems, diarrohea and indigestion and also can be used against respiratory disorder including cold fever, asthama. Piperine exhibits diverse pharmacological activities like antihypertensive, antiplatelets, antioxidant, antitumor, antipyretic, analgesic, anti-inflammatory, anti-diarrheal, antibacterial, antifungal, anti-reproductive, insecticidal activities. Piper nigrum also found to decrease lipid peroxidation in vivo. It has reported to possess antioxidant activity that might be due to the presence of flavonoids and phenolic contents

Constraining SMEFT BSM scenarios with EWPO and ΔCKM\Delta_{CKM}

Precision observables are well known for constraining most of the Beyond Standard Model (BSM) scenarios tightly. We present here a simple and comprehensive fitting framework for various BSM scenarios to these observables. We start with the fit of $S$, $T$ and $V$ parameter and their correlations using the Electroweak Precision Observables (EWPO) including the recent $m_W$ measurement from CDF-II. Utilizing these observables, we also fit various New Physics (NP) scenarios consisting of different subsets of dimension-6 Standard Model Effective Field Theory (SMEFT) operators out of a total of 10 appearing at tree level in EWPO. To further constrain these scenarios, we augment these observables with $\Delta_{CKM}$ measurement using 1-loop matching of the Low Energy Effective Field Theory (LEFT) to SMEFT operators at the Z-pole. We show that the inclusion of $\Delta_{CKM}$ constraint indeed results in stronger bounds on the SMEFT Wilson Coefficients. We also constrain the UV parameters of BSM extensions like Vectorlike leptons (VLL) and find out that such a minimal extension is in tension with the forward-backward asymmetry in $b$-sector ($A_b^{FB}$) and the recent measurement of $M_W$. In order to lift the two blind directions, which one encounters while fitting all the 10 SMEFT WCs at tree-level, we also include the LEP-II observables pertaining to the $WW$ production and present the results for the fits with and without $\Delta_{CKM}$ constraint.Comment: 32 pages, 6 figures, 19 table

Corporate social responsibility and sustainability in the tourism sector: A systematic literature review and future outlook

publishedVersio