Results 11 to 20 of about 857,975 (310)

Scale and information-processing thresholds in Holocene social evolution

open access: yesNature Communications, 2020
The Seshat database has made it possible to reveal large-scale patterns in human cultural evolution. Here, Shin et al. investigate transitions in social complexity and find alternating thresholds of polity size and information processing required for ...
Jaeweon Shin   +5 more
doaj   +1 more source

Nonlocal Schrödinger equations in metric measure spaces [PDF]

open access: yes, 2015
In this note we consider the pointwise convergence to the initial data for the solutions of some nonlocal dyadic Schrödinger equations on spaces of homogeneous type. We prove the a.e. convergence when the initial data belongs to a dyadic version of an L2
Actis, Marcelo Jesús   +3 more
core   +1 more source

Reinstatement of rhipicephalus (Boophilus) australis (Acari: Ixodidae) with redescription of the adult and larval stages [PDF]

open access: yes, 2012
Rhipicephalus australis Fuller, the Australian cattle tick, is reinstated and the adults and larvae redescribed from material collected in Australia. This long ignored boophilid was previously known as R.
de la Fuente, José   +6 more
core   +1 more source

Whey protein hydrolysis with free and immobilized Alcalase®: effects of operating parameters on the modulation of peptide profiles obtained [PDF]

open access: yes, 2016
In this work, the effects of operating parameters on the modulation of peptide profiles obtained during enzymatic hydrolysis of whey protein concentrates (WPC) with a commercial enzyme (Alcalase 2.4L AF) were analyzed.
Ceruti, Roberto Julio   +5 more
core   +1 more source

Conversión de prueba cutánea de derivado proteico purificado durante el tratamiento con anti-TNF-α

open access: yesRevista Argentina de Reumatología, 2021
Introducción: los anti-TNF-α se asocian con mayor riesgo de desarrollar tuberculosis (TB). La prueba del derivado proteico purificado (purified protein derivative, PPD) se emplea para diagnosticar infección de tuberculosis latente (ITL).
Brian Marcelo Abdala   +15 more
doaj   +1 more source

Neonatal exposure to xenoestrogens impairs the ovarian response to gonadotropin treatment in lambs [PDF]

open access: yes, 2015
Bisphenol A (BPA) and diethylstilbestrol (DES) are xenoestrogens which have been associated with altered effects on reproduction. We hypothesized that neonatal xenoestrogen exposure affects the ovarian functionality in lambs.
Belmonte, Norberto Miguel   +8 more
core   +2 more sources

Thermodynamics of computing with circuits

open access: yesNew Journal of Physics, 2020
Digital computers implement computations using circuits, as do many naturally occurring systems (e.g., gene regulatory networks). The topology of any such circuit restricts which variables may be physically coupled during the operation of the circuit. We
David H Wolpert, Artemy Kolchinsky
doaj   +1 more source

Carcinomatosis peritoneal en cáncer de pulmón: revisión de la literatura con reporte de caso

open access: yesRespirar, 2023
En Colombia, para 2020, el cáncer de pulmón se reportó como la segunda neoplasia con mayor incidencia y la primera con mayor tasa de mortalidad según las cifras del ministerio de salud de Colombia.
Ivan Triana   +5 more
doaj   +1 more source

A preconditioner for the Schur complement matrix [PDF]

open access: yes, 2006
A preconditioner for iterative solution of the interface problem in Schur Complement Domain Decomposition Methods is presented. This preconditioner is based on solving a global problem in a narrow strip around the interface.
Dalcin, Lisandro Daniel   +5 more
core   +2 more sources

Predicting of poor outcomes in COVID-19 patients: Experience from an Argentinean hospital

open access: yesIberoamerican Journal of Medicine, 2021
Introduction: The pressure over health systems caused by the COVID-19 pandemic brought about the need to develop tools that would allow for the identification of those patients that require immediate attention.
Maximiliano Gabriel Castro   +5 more
doaj   +1 more source

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