Results 61 to 70 of about 40,567 (194)

cTfh Cell Activation and Changes in BTLA and LAG‐3 Expression Differentially Associate With Poor Pregnancy Outcome in Plasmodium falciparum Placental Malaria

open access: yesJournal of Immunology Research, Volume 2026, Issue 1, 2026.
Continuous exposure to antigens drives the activation of circulating T follicular helper (cTfh) cells, promoting high‐affinity antibody production. However, sustained stimulation may impair their function through the upregulation of immunoregulatory markers like B and T lymphocyte attenuator (BTLA) and Lymphocyte-activation gene 3 (LAG-3).
Bernard Marie Zambo Bitye   +8 more
wiley   +1 more source

Dinâmica de populações e fitossociologia de plantas daninhas no cultivo do feijão-caupi e mandioca no sistema corte e queima com o uso de arado Phytosociology of weeds in cowpea and cassava crops under the slash-and-burn with plow

open access: yesPlanta Daninha, 2011
Este estudo investigou a composição florística das plantas daninhas em área queimada durante três anos agrícolas. A pesquisa foi conduzida no município de Zé Doca, Maranhão. O preparo da área no primeiro ano agrícola (2006/2007) foi realizado com corte e
L.J.P Marques   +6 more
doaj   +1 more source

Effectiveness of a Community Intervention on Malaria in Rural Tanzania-A Randomised Controlled Trial. [PDF]

open access: yes, 2010
Malaria infections are a major public health problem in Africa and prompt treatment is one way of controlling the disease and saving lives. This cluster-randomised controlled community intervention conducted in 2003-2005 aimed at improving early malaria ...
Eriksen, J   +9 more
core   +3 more sources

Analysis of Plant Diversity and Importance Value Index in Central Ethiopian Agroforestry Systems

open access: yesScientifica, Volume 2026, Issue 1, 2026.
Despite offering multiple benefits, agroforestry practices have declined due to uncertain landownership, population growth, and limited awareness and scientific data. This study aimed to investigate the composition, diversity, and importance value index (IVI) of woody plant species in home gardens (HGs) and parklands in three districts of the North ...
Admasu Moges, Nidhi Chaudhary
wiley   +1 more source

Controle de plantas daninhas na cultura do arroz de sequeiro (Oryza sativa L.) Weed control in upland rice (Oryza sativa L.)

open access: yesPlanta Daninha, 1981
Com o objetivo de verificar o controle de plantas daninhas com herbicidas na cultura do arroz de sequeiro, foi conduzido o presente experimento em um latossolo roxo, série Jaboticabal com 4,82% de m.o, utilizando-se a variedade Pratão Precoce. Foram util
R. Victoria Filho, J.B. Carvalho
doaj   +1 more source

Commodity risk assessment of Vitis spp. plants from Moldova

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The European Commission requests EFSA to provide scientific opinions in the field of plant health in accordance with Article 29 of Regulation (EC) No 178/2002. Annex VI of Commission Implementing Regulation (EU) 2019/2072 lists plants, plant products and other objects whose introduction into the Union from certain third countries is prohibited.
EFSA Panel on Plant Health (PLH)   +37 more
wiley   +1 more source

Cryptosporidium sp. E isospora belli en pacientes con diarrea, infectados por el virus de inmunodeficiencia humana. Maracaibo, 1993

open access: yesKasmera, 1995
Para investigar la prevalencia de Cryptosporidium sp e Isospora beIIi entre pacientes con infección por el Virus de Inmunodeficiencia Humana (VIH) y diarrea, se estudiaron 20 pacientes VIH seropositivos con evacuaciones líquidas o semilíquidas, en número
B. Calvo   +3 more
doaj  

Bryophytes of Rio Branco Municipality, Acre, Brazil [PDF]

open access: yes, 1994
A survey of the bryophyte flora of Rio Branco Municipality, State of Acre, Brazil, has revealed a total of 76 species of bryophyte; 66 are new records for the State of Acre and two hepaticas, Cololejeunea dzumacensis P. Tix. and Lejeunea bermudiana (Evs.)
Visnadi, Sandra Regina   +1 more
core  

Update of the Xylella spp. host plant database – Systematic literature search up to 30 June 2025

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract This scientific report provides an update of the Xylella spp. host plant database, aiming to provide information and scientific support to risk assessors, risk managers and researchers dealing with Xylella spp. Upon a mandate of the European Commission, EFSA created and regularly updates a database of host plant species of Xylella spp.
European Food Safety Authority (EFSA)   +8 more
wiley   +1 more source

Levantamento fitossociológico de plantas daninhas na cultura do girassol Phytosociological survey of weeds in sunflower crop

open access: yesPlanta Daninha, 2010
O levantamento fitossociológico da comunidade de plantas daninhas na cultura do girassol foi realizado em duas épocas distintas: no desenvolvimento inicial da cultura (entre 20 e 40 dias após a semeadura) e na pré-colheita do girassol.
F.S Adegas   +5 more
doaj   +1 more source

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