Results 21 to 30 of about 1,668 (144)

La agricultura mexicana del TLCAN al TMEC: consideraciones teóricas, balance general y perspectivas de desarrolllo

open access: yesEl Trimestre Económico, 2021
Desde 1994, el Tratado de Libre Comercio de América del Norte (TLCAN) fue puesto en marcha como “estrategia de desarrollo” para México. Recientemente, los Estados Unidos, México y Canadá renegociaron este tratado, lo que dio paso a uno nuevo denominado ...
Juan Luis Hernández Pérez
doaj   +1 more source

El imperialismo climático en el siglo XXI

open access: yesEl Trimestre Económico, 2023
El artículo plantea que hay una nueva forma de imperialismo en el siglo XXI, gracias al cambio climático, sus causas antropogénicas en particular, originadas por la explotación desmedida de parte de los países desarrollados- y los impactos que está ...
Jayati Ghosh   +2 more
doaj   +1 more source

IGHV1-69 B cell chronic lymphocytic leukemia antibodies cross-react with HIV-1 and hepatitis C virus antigens as well as intestinal commensal bacteria. [PDF]

open access: yesPLoS ONE, 2014
B-cell chronic lymphocytic leukemia (B-CLL) patients expressing unmutated immunoglobulin heavy variable regions (IGHVs) use the IGHV1-69 B cell receptor (BCR) in 25% of cases.
Kwan-Ki Hwang   +21 more
doaj   +1 more source

A matrix of structure-based designs yields improved VRC01-class antibodies for HIV-1 therapy and prevention

open access: yesmAbs, 2021
Passive transfer of broadly neutralizing antibodies is showing promise in the treatment and prevention of HIV-1. One class of antibodies, the VRC01 class, appears especially promising. To improve VRC01-class antibodies, we combined structure-based design
Young D. Kwon   +16 more
doaj   +1 more source

Identification of a Conserved Linear B-Cell Epitope of Streptococcus dysgalactiae GapC Protein by Screening Phage-Displayed Random Peptide Library. [PDF]

open access: yesPLoS ONE, 2015
The GapC of Streptococcus dysgalactiae (S. dysgalactiae) is a highly conserved surface protein that can induce protective humoral immune response in animals. However, B-cell epitopes on the S. dysgalactiae GapC have not been well identified.
Limeng Zhang   +13 more
doaj   +1 more source

El capital financiero de Rudolf Hilferding y la crisis contemporánea capitalista

open access: yesPensamiento Crítico, 2020
El presente artículo explora los elementos más interesantes de la obra de Rudolf Hilferding como eslabón crucial para la actualización del análisis de Marx en El Capital para explicar el fenómeno de la crisis financiera en el siglo XXI en el contexto de ...
Oscar David Rojas Silva
doaj   +1 more source

Aproximación al método CDC para determinar susceptibilidad a insecticidas en vectores de leishmaniasis.

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2003
El Centro de Control de Enfermedades (CDC, EE.UU.) ha propuesto un método simplificado para la determinación de resistencia a insecticidas en mosquitos adultos.
Erika Santamaría   +2 more
doaj   +1 more source

Criteria Suggestive of Psychological Components of Itch and Soma­toform Itch: Study of a Large Sample of Patients with Chronic Pruritus

open access: yesActa Dermato-Venereologica, 2020
While psychological factors are relevant in many patients with chronic pruritus, not all patients can be offered psychologic, psychosomatic or psychiatric consultation.
Gudrun Schneider   +4 more
doaj   +1 more source

Demystifying colonialism and migration: An African perspective

open access: yesResearch in Globalization
This study explores the historical trajectory of colonialism in Africa and its role in early migration patterns. It challenges the common perception of migration as a recent response to social stress and desperation in underdeveloped communities. Instead,
Adewale R Aregbeshola   +1 more
doaj   +1 more source

Combining ability of grain sorghum lines selected for aluminum tolerance [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2014
The purpose of this study was to estimate combining ability of 58 sorghum lines previously selected for Aluminum (Al) tolerance. One hundred sixty-five hybrids were evaluated at three levels of Al saturation (0%, 20% and 50%) at the same season. General
Cicero Beserra Menezes   +6 more
doaj  

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