Results 241 to 250 of about 4,079,422 (304)

Molecular Mechanisms Underlying the Synergistic Regulation of Glucose and Clay Minerals on Polyphenol-Maillard Mediated Abiotic Humification. [PDF]

Molecules
Liu Y, Gao H, Fu T, Wang M, Chen H, Wang S.   +5 more
europepmc   +1 more source

Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta‐Analysis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley   +1 more source

Research on damage size effect of cemented paste backfill under high sand-cement ratio conditions. [PDF]

Sci Rep
Jiang D, Li H, Sun G.
europepmc   +1 more source

Optimization of the extraction process and <i>in vitro</i> antioxidant capacity analysis of selenium-containing proteins from <i>Cynanchum thesioides</i>. [PDF]

PeerJ
Men Y, Han X, Huang X, Zhang X, Wei P, Yang Z, Zhang F.   +6 more
europepmc   +1 more source

Determination of Acetone in a Water/Toluene Emulsion in Each Phase Using Raman Spectroscopy with Scattered Light Correction. [PDF]

Sensors (Basel)
Spoor E, Rädle M, Repke JU.
europepmc   +1 more source

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Buyer Concentration Ratios

The Journal of Industrial Economics, 1977
To an overwhelming extent, both theoretical and empirical studies of market competition have focused on the seller's side of the market, while competition among buyers has been virtually ignored.1 Among the few exceptions are the bilateral monopoly model,2 Galbraith's concept of countervailing power,3 and the literature on reciprocity.4 However, with ...
Guth, Louis A, Schwartz, Robert A, Whitcomb, David K   +2 more
openaire   +1 more source

Concentration, Price, and Critical Concentration Ratios

The Review of Economics and Statistics, 1981
A potentially important parameter that has not yet been convincingly estimated is the critical concentration ratio. This paper attempts to estimate it in three types of market. The estimation of a critical concentration ratio, if one exists, seems of potentially great importance because of its implication for antitrust policy.
Geithman, Frederick E, Marvel, Howard P, Weiss, Leonard W   +2 more
openaire   +1 more source

Holographic Low Concentration Ratio Solar Concentrators

Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009
A model for holographic low concentration ratio concentrators for solar energy applications is presented and experimentally verified. The method is applied to two-dimensional holographic planar concentrators. Projected system energy yield is also evaluated.
Raymond K. Kostuk, Jose Castro, Deming Zhang   +2 more
openaire   +1 more source

Metabolite concentrations and concentration ratios in metabolic regulation

Advances in Enzyme Regulation, 1975
Abstract Simple computational and graphic models were used to illustrate necessary design constraints in the evolution of two aspects of metabolic control: regulation at the catalytic site by ratios of metabolic coupling factors such as the ATP/ADP/AMP system and the pyridine nucleotides, and endproduct feedback inhibition. The observed constancy of
D E, Atkinson, P J, Roach, J S, Schwedes
openaire   +2 more sources