Results 31 to 40 of about 1,629,582 (266)

Effects of varying solar-view geometry and canopy structure on solar-induced chlorophyll fluorescence and PRI

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2020
The increasing amount of continuous time series of solar-induced fluorescence (SIF) and vegetation indices (e.g. Photochemical Reflectance Index, PRI) acquired with high temporal (sub-minute) frequencies is foreseen to allow tracking of the structural ...
Khelvi Biriukova   +10 more
doaj   +1 more source

Polishing-related optical anisotropy of semi-insulating GaAs studied by reflectance difference spectroscopy

open access: yes, 2000
The strong in-plane optical anisotropy of (001) semi-insulating GaAs, which comes from the submicron region under the surface, has been observed by reflectance difference spectroscopy.
Chen YH,Chinese Acad Sci,Inst Semicond,Lab Semicond Mat Sci,POB 912,Beijing 100083,Peoples R China.   +4 more
core   +2 more sources

Near infrared reflectance spectroscopy compared with soil clay and organic matter content for estimating within-field variation in N uptake in cereals [PDF]

open access: yes, 2008
Adjusting fertiliser applications to within-field variations in nitrogen (N) mineralisation during the growing season can increase yields, improve crop quality, reduce costs and decrease nutrient losses to the environment. Predicting such variations at a
Stenberg, Bo   +5 more
core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

open access: yesFEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Optical resonances of indium islands on GaAs(001) observed by reflectance anisotropy spectroscopy

open access: yes, 2021
The optical properties of indium islands on GaAs(001) surfaces have been studied by reflectance anisotropy spectroscopy as a function of metal coverage.
Schintke, Silvia   +5 more
core   +2 more sources

Basic Concepts and Interfacial Aspects of High-Efficiency III-V Multijunction Solar Cells

open access: yesCHIMIA, 2007
Among various types of solar cells, MOVPE-grown triple-junction III-V compound semiconductors are today's most efficient photovoltaic devices with conversion efficiencies exceeding 40%.
B. Erol Sağol   +4 more
doaj   +1 more source

Diabetes‐Associated Cognitive Impairment: Pathophysiology and Emerging Therapies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Diabetes‐associated cognitive impairment (DACI) is a common yet underrecognized condition, manifesting along a spectrum from mild cognitive impairment to dementia. DACI encompasses patients who develop vascular dementia (VaD) or Alzheimer's disease (AD) with diabetes as a risk factor; however, in certain patients, particularly those lacking ...
Osman Corbali   +4 more
wiley   +1 more source

Single-Fiber Reflectance Spectroscopy of Isotropic-Scattering Medium: An Analytic Perspective to the Ratio-of-Remission in Steady-State Measurements

open access: yesPhotonics, 2014
Recent focused Monte Carlo and experimental studies on steady-state single-fiber reflectance spectroscopy (SfRS) from a biologically relevant scattering medium have revealed that, as the dimensionless reduced scattering of the medium increases, the SfRS ...
Daqing Piao, Joel W. Slaton
doaj   +1 more source

Reflection anisotropy spectroscopy of biological molecules with the 4GLS source [PDF]

open access: yesphysica status solidi c, 2008
AbstractThe main characteristics of the UK Fourth Generation Light Source (4GLS) are described. It is explained how the output of 4GLS could be used in studies of biological systems using Reflection Anisotropy Spectroscopy (RAS). (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Weightman, P.   +13 more
openaire   +2 more sources

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