Results 81 to 90 of about 1,082,318 (297)
Ellipsometric studies on rough Zn and Cd polycrystalline samples
Journal of Scientific Research in Science, 2020 A manual null ellipsometer is constructed and used to determine the optical constants of zinc and cadmium of different surface roughness at the wavelength 632.8 nm, angle of incidence 45° and room temperature.
M. Shehata +3 more
doaj +1 more source
On extinction angles cΛZ´ of monclinic and rhombic pyroxenes in random sections
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1957 In the orthoscopic observation, we usually observe pyroxenes at random orientation, and therefore, we get extinction angles measured on that random section. Calculation of an extinction angle on a given section is necessary, if we observe statistically arbitrary extinction angles of numerous pyroxenes, especialy in groundmass of volcanic rocks, in ...
openaire +2 more sources
Rab1A Promotes Hepatic Steatosis by Suppressing Mitophagy via the Raf‐1/ERK1/2/PINK1 Signaling Axis
Advanced Science, EarlyView.Why does fat accumulate in the liver? Our study reveals Rab1A as the molecular switch that silences the cell's mitochondrial cleanup crew. Turning Rab1A off reactivates mitophagy, clears excess fat, and reverses fatty liver disease in mice—offering a promising new therapeutic target for MASLD, a growing global health challenge.
Li Zhang +9 more
wiley +1 more source
FireIn this study, a McKenna burner made for calibration is used to generate the laminar flame with the equivalence ratio of 0.78~2.0. The effect of the downward water mist spray on the extinction of the methane–air premixed laminar flame is investigated ...
Yangpeng Liu +5 more
doaj +1 more source
Letter with attachment: Paul M. Angle to Ida M. Tarbell, December 14, 1936
, 1936 Letter with original transcript of preface to Whitney's Life on the Circuit with ...
Angle, Paul M.
core
Radiocarbon Chronologies and Extinction Dynamics of the Late Quaternary Mammalian Megafauna of the Taimyr Peninsula, Russian Federation [PDF]
, 2002 This paper presents 75 new radiocarbon dates based on late Quaternary mammal remains recovered from eastern Taimyr Peninsula and adjacent parts of the northern Siberian lowlands, Russian Federation, including specimens of woolly mammoth (Mammuthus ...
MacPhee, Ross D.E., +19 more
core +2 more sources
Advanced Science, EarlyView.The present study shows that Nrf2 directly binds to the Gm26550 promoter, thereby activating Gm26550 transcription and increasing its expression. Mechanistically, Gm26550 promotes IGF1 expression by functionally antagonizing miR‐26a‐5p‐mediated repression and sequestering the RBP KHSRP, thereby enhancing hippocampal neuronal synaptic plasticity and ...
Hongfang Wang +12 more
wiley +1 more source
Deglaciation Explains Bat Extinction in the Caribbean [PDF]
, 2012 Ecological factors such as changing climate on land and interspecific competition have been debated as possible causes of postglacial Caribbean extinction.
Dávalos, Lilian M., Russell, Amy L.
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Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley +1 more source
Ultracompact TM-Pass Silicon Nanophotonic Waveguide Polarizer and Design
IEEE Photonics Journal, 2010 An ultracompact transverse magnetic (TM)-pass polarizer based on silicon nanophotonic waveguides is proposed, which contains two tapered waveguides sandwiching a narrow waveguide section only supporting TM-mode propagation.
Qian Wang, Seng-Tiong Ho
doaj +1 more source