Results 51 to 60 of about 222,900 (250)

Concentração plasmática de cortisol, uréia, cálcio e fósforo em vacas de corte mantidas a pasto suplementadas com levedura de cromo durante a estação de monta Cortisol, urea, calcium and phosphorus plasma concentration in grazing beef cows supplemented with high chromium yeast during breeding season

open access: yesCiência Rural, 2003
Foi pesquisada a influência da suplementação com cromo (Cr) sobre a concentração plasmática de cortisol, uréia, cálcio e fósforo em vacas zebu mantidas a pasto e numa situação de estresse calórico durante a estação de monta. Foram utilizadas trinta vacas
Eduardo Fabian Aragón Vásquez   +1 more
doaj   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

open access: yesMolecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth   +17 more
wiley   +1 more source

Chromium-Catalyzed Diastereoselective Synthesis of Conformationally Constrained Spirotetrahydroquinolines

open access: yes, 2023
We report the diastereoselective cyclization of anilines with cyclobutanones and congeners by chromium catalysis. This reaction can link two strained four-membered rings with tetrahydroquinolines by forming four bonds in a diastereocontrolled manner ...
Sha Wang (130042)   +9 more
core   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

open access: yesFEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta   +7 more
wiley   +1 more source

Removal of chromium (III) by two-aqueous phases extraction [PDF]

open access: yes, 2009
Two-aqueous phase extraction of chromium (III) as a solute from their aqueous solutions was investigated using polyethoxylated alcohols (CiEj) as a biodegradable non-ionic surfactant in the presence of anionic sodium dodecylbenzene sulfonate (SDBS ...
Nasr-Eddine, Belkhouche   +3 more
core   +1 more source

Recycling of leather waste containing chromium - A review [PDF]

open access: yes, 2011
Chromium tanned leather is the preferred option for tanning leather used in footwear due to the high performance and unique properties it confers to the final product.
Manuel Fonseca Almeida, M. J. Ferreira
core   +1 more source

Chromium (VI) Ion Adsorption Features of Chitosan Film and Its Chitosan/Zeolite Conjugate 13X Film

open access: yesMolecules, 2011
This research evaluated the importance of the adsorption properties of chitosan a chitosan/zeolite conjugate film for the removal of Cr(VI) ions from solutions in the 5–260 mg/L concentration range, when the pH was adjusted to 4.0 and 6.0.
Maria Teresa Tavares   +4 more
doaj   +1 more source

Small RNA pathways in mammalian oocytes

open access: yesFEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Empirical optimization of corrosion rate for magnesium-chromium composites [PDF]

open access: yes, 2021
363-368In this study, optimization of the corrosion rate (CR) of Mg-composites has been evaluated by varying the concentration, reinforcement percentage, and immersion time.
Singh, Sakshi, Chauhan, Nathi Ram
core  

Exposure to CCA-treated wood amongst food caterers and residents in informal areas of Cape Town

open access: yesSouth African Journal of Science, 2013
We investigated the absorption of chromium, copper and arsenic released from treated wood used by street food caterers and household residents in an informal urban area and a peri-urban area in Cape Town, South Africa.
Sivapregasen Naidoo   +2 more
doaj   +1 more source

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