Results 11 to 20 of about 1,115,045 (263)

Evaluation of Germination and determination of cardinal temperatures of Cannabis sativa by using regression models [PDF]

open access: yesعلوم و فناوری بذر ایران, 2018
To determine the specific temperature of Medicinal Cannabis sativa, the effects of different temperatures on germination, in a laboratory study in a completely randomized design with three replications were studied.
shiva barooti   +3 more
doaj   +1 more source

Beta functions for the duality-invariant sigma model

open access: yesJournal of High Energy Physics, 2021
The O(d, d) invariant worldsheet theory for bosonic string theory with d abelian isometries is employed to compute the beta functions and Weyl anomaly at one-loop. We show that vanishing of the Weyl anomaly coefficients implies the equations of motion of
Roberto Bonezzi, Tomas Codina, Olaf Hohm
doaj   +1 more source

Enhanced characterization of beta cell mass in a Tg(Pdx1-GFP) mouse model [PDF]

open access: yesBioImpacts, 2022
Introduction: Measurement of pancreatic beta cell mass in animal models is a common assay in diabetes researches. Novel whole-organ clearance methods in conjunction with transgenic mouse models hold tremendous promise to improve beta cell mass ...
Fatemeh Karami   +8 more
doaj   +1 more source

Sticker-and-spacer model for amyloid beta condensation and fibrillation

open access: yesFrontiers in Molecular Neuroscience, 2022
A major pathogenic hallmark of Alzheimer's disease is the presence of neurotoxic plaques composed of amyloid beta (Aβ) peptides in patients' brains. The pathway of plaque formation remains elusive, though some clues appear to lie in the dominant presence
Jack P. Connor   +5 more
doaj   +1 more source

Explaining the Default Risk Premium Anomaly Using Two Beta Model [PDF]

open access: yesJournal of Asset Management and Financing, 2019
Objective: Given some failures of the Capital Asset Pricing Model in explaining the default risk anomaly, some researchers have claimed the two-beta model, established by Campbell and Vulteenaho (2004), is functionally able to explain this peculiarity ...
Daryoosh Forooghi   +2 more
doaj   +1 more source

The Standard Model Theory of Neutron Beta Decay

open access: yesUniverse, 2023
We review the status of the Standard Model theory of neutron beta decay. Particular emphasis is put on the recent developments in the electroweak radiative corrections.
Mikhail Gorchtein, Chien-Yeah Seng
doaj   +1 more source

Penilaian returns investasi saham dengan Augmented Three Factor model pada kondisi political uncertainty di Indonesia

open access: yesJurnal Ekonomi Modernisasi, 2022
This study aims to analyze the market factor portfolio beta, small minus big portfolio beta, high minus low portfolio beta, market volatility beta portfolio effect on investment returns with the Fama and French augmented three factor model in the ...
Rika Rahayu, Mar'atus Zahro
doaj   +1 more source

MODELING THE BETA DIVERSITY OF CORAL REEFS [PDF]

open access: yesEcology, 2006
Quantifying the beta diversity (species replacement along spatiotemporal gradients) of ecosystems is important for understanding and conserving patterns of biodiversity. However, virtually all studies of beta diversity focus on one-dimensional transects orientated along a specific environmental gradient that is defined a priori.
Harborne, Alastair R.   +4 more
openaire   +4 more sources

Applying black- Scholes model to breakdown beta: growth options and the risk of beta miscalculation [PDF]

open access: yesIranian Journal of Finance, 2019
When evaluating companies and investment plans, most analysts use a discount rate that is derived from CAPM models. The beta in these models usually represent risks and opportunities of the relative industry, with almost no attention to the risks that ...
Amin Babaei Falah   +2 more
doaj   +1 more source

Transient beta modulates decision thresholds during human action-stopping

open access: yesNeuroImage, 2022
Action-stopping in humans involves bursts of beta oscillations in prefrontal-basal ganglia regions. To determine the functional role of these beta bursts we took advantage of the Race Model framework describing action-stopping.
Vignesh Muralidharan   +2 more
doaj   +1 more source

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