Results 91 to 100 of about 41,285,632 (393)

Constraints on the Redshift and Luminosity Distributions of Gamma Ray Bursts in an Einstein-de Sitter Universe [PDF]

open access: yes, 1997
Two models of the gamma ray burst population, one with a standard candle luminosity and one with a power law luminosity distribution, are chi^2-fitted to the union of two data sets: the differential number versus peak flux distribution of BATSE's long ...
Daniel E. Reichart   +3 more
core   +3 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Defining an acceptable period of time from melanoma biopsy to excision

open access: yesDermatology Reports, 2012
Melanoma is the most lethal form of skin cancer and it is the second most common cancer among adolescents and young adults. The aim of this work is to determine if surgical intervals differ between four different clinics and between departments within ...
Laura S. Huff   +6 more
doaj   +1 more source

Electromagnetic form factors in noncommutative space time

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Electric and magnetic moment distributions are presenting by form factors (FF)s. Noncommutative space-time (NCST) includes an additional Lorentz index which are effecting on FFs. In this content we investigate electron-proton elastic scattering to impose
A. Rafiei, Z. Rezaei, A. Mirjalili
doaj   +1 more source

Nucleon electromagnetic form factors and polarization observables in space-like and time-like regions

open access: yes, 2005
We perform a global analysis of the experimental data of the electromagnetic nucleon form factors, in space-like and time-like regions. We give the expressions of the observables in annihilation processes, such as $p+\bar{p}\to \ell^+ +\ell^- $, $\ell=e$
Akerlof   +64 more
core   +2 more sources

Predicting time to graduation at a large enrollment American university

open access: yes, 2020
The time it takes a student to graduate with a university degree is mitigated by a variety of factors such as their background, the academic performance at university, and their integration into the social communities of the university they attend ...
Aiken, John M.   +3 more
core   +1 more source

Dynamic weighted idle time heuristic for flowshop scheduling [PDF]

open access: yes, 2015
The constructive heuristic of Nawaz, Enscore and Ham (NEH) has been introduced in 1983 to solve flowshop scheduling. Many researchers have continued to improve the NEH by adding new steps and procedures to the existing algorithm.
Ahmad, Abd Rahman   +3 more
core   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Dispersion-theoretical analysis of the nucleon electromagnetic form factors: Inclusion of time-like data

open access: yes, 1996
We update a recent dispersion--theoretical fit to the nucleon electromagnetic form factors by including the existing data in the time--like region. We show that while the time--like data for the proton can be described consistently with the existing ...
Anklin   +26 more
core   +1 more source

Socio-demographic, psychosocial and home-environmental attributes associated with adults' domestic screen time [PDF]

open access: yes, 2011
Background: Sedentary behaviors (involving prolonged sitting time) are associated with deleterious health consequences, independent of (lack of) physical activity. To inform interventions, correlates of prevalent sedentary behaviors need to be identified.
Cardon, Greet   +6 more
core   +8 more sources

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