Results 91 to 100 of about 270,992 (294)

Natural Incidence of Egg Parasitoids of Edessa meditabunda (F.) (Hemiptera: Pentatomidae) on Crotalaria spectabilis in Campo Novo do Parecis, MT, Brazil [PDF]

open access: yes, 2011
Egg parasitoids of the stink bug Edessa meditabunda (F) were studied on rattlepod Crotalaria spectabilis used in soybean crop rotation in Campo Novo do Parecis, Mato Grosso state, central western Brazil.
Aquino, Daniel Alejandro   +3 more
core   +2 more sources

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade   +7 more
wiley   +1 more source

Schistosomiasis mansoni: an analysis of indicators epidemiological studies in the state of Alagoas between 2013 and 2015 / Esquistossomose mansônica: uma análise de indicadores epidemiológicos no estado de Alagoas entre os anos de 2013 e 2015

open access: yesDiversitas Journal, 2016
Schistosomiasis is a parasitic disease caused by worms trematodes of the genus Schistosoma. About 258 million people needed treatment only in 2014. The transmission of schistosomiasis has been reported in 78 countries including Brazil.
Mayke Bezerra Alencar   +4 more
doaj   +1 more source

Toxicity of aqueous extracts of Ilex paraguariensis A.St.‐Hil. about Euphorbia heterophylla L.

open access: yesPest Management Science, EarlyView.
Aqueous extracts of Ilex paraguariensis A.St.‐Hil. strongly inhibit Euphorbia heterophylla L. germination and early seedling growth, but show mild phytotoxicity on mature plants, paradoxically promoting biomass via antioxidants. Abstract BACKGROUND The escalating challenge of herbicide‐resistant weeds, exemplified by Euphorbia heterophylla L.
Tamara Alberton da Silva   +8 more
wiley   +1 more source

Brazilian Ironstone Plant Communities as Reservoirs of Culturable Bacteria With Diverse Biotechnological Potential

open access: yesFrontiers in Microbiology, 2018
Extensive mineral extractivism in the Brazilian Iron Quadrangle (IQ) region has destroyed large areas of land, decimating plant species, and their associated microbiota.
Washington L. Caneschi   +14 more
doaj   +1 more source

Plasma and testicular testosterone levels, volume density and number of Leydig cells and spermatogenic efficiency of rabbits [PDF]

open access: yes, 2002
Plasma and tissue testosterone concentrations were determined by radioimmunoassay in 12 eight-month-old sexually mature New Zealand White rabbits and evaluated for possible associations with spermatogenic efficiency as well as with volume density and ...
Berndtson, William E.   +2 more
core   +2 more sources

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

Transporte membranar [PDF]

open access: yes, 2011
Recurso em formato vídeo para apoio a aprendizagem de conteúdos das ciências biológicas: "Transporte de membrana plasmática".info:eu-repo/semantics ...
Nicolau, Paula Bacelar
core  

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