Results 31 to 40 of about 10,543 (152)

Effects of Environmental and Disturbance Factors on Plant Community Distribution in Tropical Moist Afromontane Forests, South‐West Ethiopia

open access: yesInternational Journal of Forestry Research, Volume 2023, Issue 1, 2023., 2023
This study was carried out to investigate the effects of environmental and disturbance factors on plant community distribution in the Majang Forest Biosphere Reserve (MFBR) in south‐west Ethiopia. A systematic sample design was conducted to collect vegetation and environmental factors in four study sites.
Semegnew Tadese   +3 more
wiley   +1 more source

Obliterative portal venopathy: A neglected and probably misdiagnosed disease with peculiar etiology in South America

open access: yesJGH Open, Volume 6, Issue 12, Page 904-909, December 2022., 2022
Classically described in the group of non‐cirrhotic portal hypertension, obliterative portal venopathy (OPV) causes are still unknown. Our aim is to describe the characteristics of 43 OPV patients and potential risk factors. Clinically significant portal hypertension was found in 28% of cases. The most frequent indication for liver biopsy was elevation
Vinícius Nunes   +7 more
wiley   +1 more source

Tropical–temperate comparisons in insect seed predation vary between study levels and years

open access: yesEcology and Evolution, Volume 12, Issue 9, September 2022., 2022
The species interaction has been proposed to become intense towards the tropics. Here we compared insect seed predation between tropical and temperate forests and showed every latitudinal pattern associated with study levels and years. Abstract The biotic interaction hypothesis, which states the species interaction becomes stronger in the tropics, is ...
Wenlan Wu   +6 more
wiley   +1 more source

Automated identification of diverse Neotropical pollen samples using convolutional neural networks

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 9, Page 2049-2064, September 2022., 2022
Abstract Pollen is used to investigate a diverse range of ecological problems, from identifying plant–pollinator relationships to tracking flowering phenology. Pollen types are identified according to a set of distinctive morphological characters which are understood to capture taxonomic differences and phylogenetic relationships among taxa.
Surangi W. Punyasena   +4 more
wiley   +1 more source

Anatomia do lenho de Uncaria guianensis e U. tomentosa (Rubiaceae) do estado do Acre, Brasil Wood anatomy of Uncaria guianensis e U. tomentosa (Rubiaceae) from the State of Acre, Brazil

open access: yesActa Amazonica, 2006
As plantas de Uncaria guianensis e U. tomentosa são lianas trepadeiras, arbustos trepadores ou rasteiros ascendentes que ocorrem em amplas áreas da Amazônia brasileira e países da América Central e do Sul.
Percy A. Zevallos Pollito   +1 more
doaj   +1 more source

Potencial agroecológico de la uña de gato en comunidades tikuna de la Amazonia colombiana

open access: yesMundo Amazónico, 2023
Uncaria guianensis (Aublet) J.F. Gmel y U. tomentosa (Willd. Ex Roemer & Schultes) DC., ambas especies conocidas popularmente como uña de gato, son reconocidas por su uso en la medicina tradicional y por su potencial comercial en la industria ...
Lina Paola Garzón-Garzón   +1 more
doaj   +1 more source

Uncaria tomentosa stimulates the proliferation of myeloid progenitor cells [PDF]

open access: yes, 2011
Ethnopharmacological relevanceThe Asháninkas, indigenous people of Peru, use cat's claw (Uncaria tomentosa) to restore health. Uncaria tomentosa has antioxidant activity and works as an agent to repair DNA damage.
do Carmo Araújo, Maria   +19 more
core   +1 more source

Tolerance and efficacy of a spray containing Rhealba oat plantlets and Uncaria tomentosa extracts in reducing symptoms of herpes zoster

open access: yes, 2023
Journal of the European Academy of Dermatology and Venereology, Volume 37, Issue 4, Page e511-e513, April 2023.
Adam Reich   +4 more
wiley   +1 more source

Assessment of modulatory activity of Uncaria tomentosa extract against fipronil immunotoxicity in male rats

open access: yesEcotoxicology and Environmental Safety, 2021
This study has investigated the effect of using the Uncaria tomentosa (UT) extract against immunotoxicity that induced by fipronil (FP) in male Wistar rats. Twenty-eight, male Wistar rats were assigned randomly into four groups (7 rats each).
Tahany Saleh Aldayel   +5 more
doaj   +1 more source

Uncaria tomentosa (Willd. ex Schult.) DC.: A Review on Chemical Constituents and Biological Activities

open access: yesApplied Sciences, 2020
Uncaria tomentosa (Willd. ex Schult.) DC. (Family: Rubiaceae), commonly known as cat’s claw, is a tropical medicinal vine originating at the Amazon rainforest and other areas of South and Central America.
Gaber El-Saber Batiha   +8 more
doaj   +1 more source

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