Results 51 to 60 of about 3,830,075 (379)

Analysis of absorption processes on the surface of a nanocompacted gas sensor

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023
It is well known that gas absorption by a semiconductor surface leads to a change in its electrical conductivity. This phenomenon has become the basis for the technical production of various gas sensitive sensors.
Yu.Ya. Gafner, D.A. Ryzhkova
doaj   +1 more source

Soliton absorption spectroscopy

open access: yes, 2010
We analyze optical soliton propagation in the presence of weak absorption lines with much narrower linewidths as compared to the soliton spectrum width using the novel perturbation analysis technique based on an integral representation in the spectral ...
A. Biswas   +10 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Ex vivo perfusion model of mouse liver and its application to analyze the effects of OCT1 deficiency

open access: yesFrontiers in Pharmacology
IntroductionThe liver plays a critical role in drug pharmacokinetics. In in vivo experiments, it is difficult to isolate the liver’s contribution to drug systemic concentrations from that of the intestine and kidneys.
Vincent Rönnpagel   +5 more
doaj   +1 more source

Dry matter and macronutrient extraction curves of potato varieties in the Alto Paranaíba region, Brazil [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2020
Information on plant nutrient extraction is of utmost importance for the management of fertilization in crops. The objective of the study was to determine the accumulation of dry matter mass in the tubers and aerial parts of the plants and to generate ...
Carlos D. da Silva   +5 more
doaj   +1 more source

Intestinal Absorption [PDF]

open access: yes, 2000
This is the edited transcript of a Witness Seminar held at the Wellcome Institute for the History of Medicine,in London, on 9 February 1999. First published by the Wellcome Trust, 2000.
Christie, DA, Tansey, EM
core  

Damped Lyman-alpha Absorption Associated with an Early-Type Galaxy at Redshift z = 0.16377

open access: yes, 1997
We report new HST and ground-based observations of a damped Lyman-alpha absorption system toward the QSO 0850+4400. The redshift of the absorption system is z = 0.163770 and the neutral hydrogen column density of the absorption system is log N = 19.81 cm*
Altan, Hakan   +10 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Assessment of new scientific studies on human in vitro dermal absorption

open access: yesEFSA Journal, 2015
This EFSA scientific report describes the results from the evaluation of new human in vitro studies on dermal absorption made available by European Crop Protection Association (ECPA) and the German public organisation Bundesinstitut für Risikobewertung ...
EFSA Working Group on Dermal Absorption
doaj   +1 more source

A Model for Quantum Stochastic Absorption in Absorbing Disordered Media

open access: yes, 2004
Wave propagation in coherently absorbing disordered media is generally modeled by adding a complex part to the real part of the potential. In such a case, it is already understood that the complex potential plays a duel role; it acts as an absorber as ...
Prabhakar Pradhan   +2 more
core   +1 more source

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