Results 71 to 80 of about 67,280 (303)

Cinética do fósforo em tecidos de suínos alimentados com dietas contendo enzima fitase Phosphorus kinetics in tissue of growing pigs fed diets containing phytase enzyme

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2004
O experimento foi desenvolvido para avaliar a cinética do P em tecidos de suínos em crescimento, alimentados com rações contendo P orgânico e vários níveis de fitase, com o uso do 32P como indicador.
J.A. Moreira, D.M.S.S. Vitti, J.B. Lopes, M.A. Trindade Neto   +3 more
doaj   +1 more source

Artesunate Nanoplatform Targets the Serine–MAPK Axis in Cancer‐Associated Fibroblasts to Reverse Photothermal Resistance in Triple‐Negative Breast Cancer

Advanced Materials, EarlyView.
The artesunate nanoplatform selectively targets ECM CAF, functioning as a GTPase inhibitor through disruption of intracellular serine homeostasis. This metabolic intervention effectively suppresses MAPK cascade activity, which consequently inhibits PTT‐induced CAF to ECM CAF differentiation.
Dongdong Zheng, Jiaqi Yan, Xuejiao Liu, Zhiming Zhang, Anqi Jin, Yue Zhao, Lu Bai, Mengyao Quan, Xiuzhu Qi, Bin Fu, Zhigang Wu, Jin Zhou, Han Han, Ziqi Wang, Shiyu Wang, Chaoqiang Deng, Weijian Sun, Cai Chang, Shichong Zhou, Hongbo Zhang   +19 more
wiley   +1 more source

Spin Engineering of Dual‐Atom Site Catalysts for Efficient Electrochemical Energy Conversion

Advanced Materials, EarlyView.
This review highlights recent progress in spin engineering of dual‐atom site catalysts (DASCs), emphasizing how spin‐related properties enhance electrocatalytic activity, selectivity, and stability. It summarizes cutting‐edge developments in dual‐atom catalysis, discusses the underlying spin‐catalysis mechanisms and structure–performance relationships,
Dongping Xue, Yu Zhao, Jianliang Cao, Yan Wang, Xiaoning Li, Tianyi Ma   +5 more
wiley   +1 more source

An accurate determination of the Avogadro constant by counting the atoms in a 28Si crystal

, 2010
The Avogadro constant links the atomic and the macroscopic properties of matter. Since the molar Planck constant is well known via the measurement of the Rydberg constant, it is also closely related to the Planck constant.
Andreas, B., Azuma, Y., Bartl, G., Becker, P., Bettin, H., Borys, M., Busch, I., Fuchs, P., Fujii, K., Fujimoto, H., Gray, M., Kessler, E., Krumrey, M., Kuetgens, U., Kuramoto, N., Mana, G., Manson, P., Massa, E., Mizushima, S., Nicolaus, A., Picard, A., Pramann, A., Rienitz, O., Schiel, D., Valkiers, S., Waseda, A.   +25 more
core   +1 more source

Nickel Hydroxide Catalyzed Bias‐free Photoelectrochemical NH3 Production via Nitrate Reduction

Advanced Materials, EarlyView.
A bias‐free photoelectrochemical nitrate reduction reaction with high efficiency and production rate is achieved using a crystalline silicon photocathode with nickel as the catalyst. Performing the PEC NO3RR under alkaline conditions can be self‐activated of the Ni surface by forming Ni(OH)2.
Wonjoo Jin, Hyunju Go, Juyeon Jeong, Jeonghwan Park, Ahmad Tayyebi, Je Min Yu, Seungchul Kim, Keunsu Choi, Ji‐Wook Jang, Kwanyong Seo   +9 more
wiley   +1 more source

Three Li-rich K giants: IRAS 12327-6523, IRAS 13539-4153, and IRAS 17596-3952

, 2005
We report on spectroscopic analyses of three K giants previously suggested to be Li-rich: IRAS 12327-6523, IRAS 13539-4153, and IRAS 17596-3952. High-resolution optical spectra and the LTE model atmospheres are used to derive the stellar parameters: ($T_{
Bacham E. Reddy, Carlsson M., Castilho B. V., Charbonnel C., da Silva L., David L. Lambert, Gregorio-Hetem J.   +6 more
core   +1 more source

Oxygen isotopic ratios in cool R Coronae Borealis stars [PDF]

, 2010
We investigate the relationship between R Coronae Borealis (RCB) stars and hydrogen-deficient carbon (HdC) stars by measuring precise 16O/18O ratios for five cool RCB stars.
Alvarez, Asplund, Asplund, Asplund, Clayton, Clayton, Cottrell, D. A. García-Hernández, David L. Lambert, García-Hernández, Ken H. Hinkle, Kjell Eriksson, Lawson, N. Kameswara Rao, Pandey, Rao, Rao, Warner   +17 more
core   +3 more sources

How Real‐Time Kinetics Explain the Different Interaction of Cubosomes and Hexosomes Nanoparticles with Lipid Membranes

Advanced Materials Interfaces, EarlyView.
GMO cubosomes and DOPE hexosomes interact differently with lipid membranes: cubosomes exchange lipid molecules with the membranes, destabilizing them when the membranes do not contain cholesterol. Hexosomes interact more gently with membranes and tend to fuse and incorporate into them.
Mario Campana, Silvia Dante, Paola Astolfi, Simone Ranieri, Michela Pisani   +4 more
wiley   +1 more source

Die Analyse von Calciumspuren im Gallium mit Hilfe der Isotopenverdünnungsmethoden

CHIMIA, 1962
With the help of isotopic dilution method it was possible to follow with great sensibility the comportment of the calcium during the purification processes of metallic gallium. The calcium-45 was added to alkaline solution of gallate. The electrolyse of
P. Lerch, C. Vuilleumier
doaj   +1 more source

Trace Element Estimation – Methods & Clinical Context [PDF]

, 2005
Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core   +1 more source