Results 21 to 30 of about 69,446 (198)

Genetic Analysis of Tropical Midaltitude‐Adapted Maize Populations under Stress and Nonstress Conditions

Crop Science, Volume 58, Issue 4, Page 1492-1507, July–August 2018., 2018
Maize (Zea mays L.) yield in sub‐Saharan Africa (SSA) is low because of both abiotic and biotic constraints, and limited availability or use of improved seed in some areas. This study was conducted (i) to estimate combining ability and heterosis among seven stress‐tolerant populations, and (ii) to assess diversity among the populations and the ...
Dan Makumbi, Silvano Assanga, Alpha Diallo, Cosmos Magorokosho, Godfrey Asea, Mosisa Worku, Marianne Bänziger   +6 more
wiley   +1 more source

Contribuição à Ficologia da Amazônia.2. Desmidioflórula dos lagos Cristalino e São Sebastião, Estado do Amazônas: Gêneros Filamentosos () [PDF]

Acta Amazonica, 1980
Resumo O presente trabalho é uma contribuição ao levantamento qualitativo das algas desmídias filamentosas dos lagos Cristalino e São Sebastião, Estado do Amazonas, Brasil.
Dayse Vasques Martins
doaj   +1 more source

Carbon accumulation in Amazonian floodplain lakes: A significant component of Amazon budgets?

Limnology and Oceanography Letters, Volume 2, Issue 1, Page 29-35, February 2017., 2017
Abstract The Amazon floodplains cover approximately 10% of the Amazon Basin and are composed of predominantly anoxic sediments that may store large amounts of carbon. Our study combines 210Pb derived sedimentation rates from four recently analyzed sediment cores (n = 4) with previously published organic carbon (OC) burial estimates (n = 18) to provide ...
Luciana M. Sanders, Kathryn H. Taffs, Debra J. Stokes, Christian J. Sanders, Joseph M. Smoak, Alex Enrich‐Prast, Paul A. Macklin, Isaac R. Santos, Humberto Marotta   +8 more
wiley   +1 more source

Opuntia spp.: Characterization and Benefits in Chronic Diseases

Oxidative Medicine and Cellular Longevity, Volume 2017, Issue 1, 2017., 2017
Opuntia species have been used for centuries as food resources and in traditional folk medicine for their nutritional properties and their benefit in chronic diseases, particularly diabetes, obesity, cardiovascular diseases, and cancer. These plants are largely distributed in America, Africa, and the Mediterranean basin. Opuntia spp.
María del Socorro Santos Díaz, Ana-Paulina Barba de la Rosa, Cécile Héliès-Toussaint, Françoise Guéraud, Anne Nègre-Salvayre, Liudmila Korkina   +5 more
wiley   +1 more source

Energy at the Junction of the Rivers Negro and Solimões, Contributors of the Amazon River, in the Brazilian Amazon

International Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
The Negro and Solimoes rivers join in front of the Brazilian city of Manaus to form the Amazon River. This “meeting of the waters” is a natural phenomenon of great aesthetic beauty that has been the focus of attention of researchers all over the world in various scientific fields.
Alexandre Beluco, Paulo Kroeff de Souza, Anna Stoppato   +2 more
wiley   +1 more source

Experimento para modelar a acomodação do olho humano

Revista Brasileira de Ensino de Física
Resumo Construímos um sistema simples e barato que simula o processo de acomodação do olho humano. Utilizou-se uma lente bola flexível, feita de preservativo masculino de látex cheio de água, e dois lasers de diodo, que podem passar da condição de ...
Gustavo Trierveiler, Julio Flemming
doaj   +1 more source

Relação entre a biometria ultra-sonográfica em modo B do bulbo ocular e os diâmetros fronto occiptal e bizigomático em Canis familiaris B-Mode Ultrasound biometry of the ocular globe related with fronto-occiptal and bizigomatic diameters in Canis familiaris

Pesquisa Veterinária Brasileira, 2009
Avaliou-se 31 cães saudáveis, sem raça definida, sendo 10 machos e 21 fêmeas, com 8 meses a 7 anos de idade e peso de1,5-28 kg. Inicialmente foram mensurados os diâmetros fronto-occiptal (DFO) e bizigomático (DBZ) do crânio com o auxílio de um paquímetro.
Poliana S. Beserra, Gustavo A. Sales, Expedito J.M. Santana, Stefânia A. Miranda, Adriel B. Brito, Elizabete Nickolak, Sheyla F.S. Domingues   +6 more
doaj   +1 more source

Sistemas cristalinos: nomenclatura e convenções

Terrae Didatica, 2018
Os livros de introdução à cristalografia apresentam os sistemas cristalinos de acordo com o conjunto de elementos de simetria e as orientações axiais dos cristais. Entretanto, o que é fundamental para a definição do sistema cristalino é apenas o conjunto dos elementos de simetria e não as orientações axiais. Alguns dos sistemas cristalinos possuem seus
Daniel Atencio, Andrezza de Almeida Azzi
openaire   +3 more sources

Caracterización clínica y anatómica del segmento anterior mediante tecnología de cámara Scheimpflug en un caso de lenticono posterior [PDF]

, 2014
Presentamos un caso de pérdida de agudeza visual unilateral no explicable por factores corneales o retinianos en el que se detecta un lenticono posterior mediante tecnología de cámara Scheimpflug.
Laria Ochaíta, Carlos, Piñero, David P., Pérez Cambrodí, Rafael J., Ribera Vicent, David, Ruiz Fortes, Pedro   +4 more
core   +1 more source

Inoculation and Co‐Inoculation With Plant Growth–Promoting Bacteria in Chickpea: Physiological Aspects and Plant Growth

International Journal of Agronomy, Volume 2026, Issue 1, 2026.
The inoculation of plants with growth‐promoting and nitrogen‐fixing bacteria is considered an effective alternative to reduce the use of nitrogen fertilizers and promote plant growth. This study aimed to evaluate the effect of inoculation and co‐inoculation with growth‐promoting bacteria on the physiological traits and growth of chickpea plants.
Karla Sabrina Magalhães Andrade Padilha, Rodinei Facco Pegoraro, Leonardo David Tuffi Santos, Evander Alves Ferreira, Maria Nilfa Almeida Neta, Othmane Merah   +5 more
wiley   +1 more source