Results 31 to 40 of about 801,114 (172)

Low‐Dose Chlorothalonil Induces Testicular Injury Through Disruption of Steroidogenic Signaling in Adult Male Mice

Journal of Applied Toxicology, EarlyView.
ABSTRACT Chlorothalonil (CHL) is a widely used organochlorine fungicide frequently detected in environmental and food matrices. Although increasing evidence indicates adverse effects in nontarget species, the mechanisms underlying CHL‐induced male reproductive toxicity remain incompletely understood.
Cristiana Livramento Oliveira Pinto, Nicoly Caixêta Gonçalves, Paula Rafaela Queiroz da Silva, Ludmila Rodrigues Pontes, Juliana Reis Machado, Virmondes Rodrigues Jr., Hugo Felix Perini, Gláucia Eloisa Munhoz de Lion Siervo   +7 more
wiley   +1 more source

A Educação Ambiental como recurso de planejamento e intervenção docente no Ensino de Ciências Exatas [PDF]

, 2013
O presente estudo foi realizado durante o curso de Mestrado Profissional em Ensino de Ciências Exatas da Univates e teve como objetivo geral verificar se a utilização da educação ambiental como recurso pedagógico contribui para a melhoria do ensino nas ...
Santos, Márcio Haetinger
core  

Certeza e Incerteza

Mises, 2017
O presente texto expõe a concepção misesiana sobre as diferenças entre os métodos das ciências naturais e as ciências da ação humana, ou praxiologia.
Ludwig von Mises
doaj   +1 more source

Exact Values and Bounds on Covering Schemes of Strength Two

Journal of Combinatorial Designs, EarlyView.
ABSTRACT In this work, we investigate covering schemes of strength 2 over finite abelian groups, establishing new lower and upper bounds and evaluating new exact values. A main result is a new general lower bound that improves the trivial one and achieves optimality for the binary case. We also develop a recursive relation based on subsets of the group
André G. Castoldi, Anderson N. Martinhão, Emerson L. Monte Carmelo, Pablo H. Perondi, Otávio J. N. T. N. dos Santos   +4 more
wiley   +1 more source

Good Real Perturbations of Simple Corank One Map Germs From R3$\mathbb {R}^3$ to R3$\mathbb {R}^3$

Mathematische Nachrichten, EarlyView.
ABSTRACT The existence of good real perturbations of map germs is one of the most interesting open questions in singularity theory. In this paper, we investigate this question for all simple corank one map germs from R3$\mathbb {R}^3$ to R3$\mathbb {R}^3$, we give a complete description of those that admit a good real perturbation.
A. J. Miranda, M. J. Saia, T. O. Souza
wiley   +1 more source

A new old species of Tetracera (Dilleniaceae) from Espinhaço Range, Brazil

Nordic Journal of Botany, EarlyView.
Tetracera is the only genus within Dilleniaceae with a pantropical distribution. During efforts for a taxonomic revision of the neotropical species, we identified incongruences between application of names and their taxonomic identities, based on protologue and type specimen analysis. Here we describe a new species for the genus bearing a single carpel
Michelly D. F. Araújo, João V. L. Monzoli, Leandro L. Giacomin, Claudio N. Fraga   +3 more
wiley   +1 more source

Redução de Ruídos Speckle no Mapeamento de Estruturas Lineares Submarinas em Imagens de Sonar de Abertura Sintética

Revista Brasileira de Cartografia, 2019
A utilização do sonar de abertura sintética no levantamento hidrográfico com veículo autônomo subaquático tem possibilitado o mapeamento de pequenos objetos em grandes profundidades.
Victor Hugo Fernandes, Nilcilene das Graças Medeiros, Dalto Domingos Rodrigues, Arthur Ayres Neto, Júlio César de Oliveira   +4 more
doaj   +1 more source

Bauhinia naniflora: a new species of section Amaria (Cercidoideae: Leguminosae) from Colombia

Nordic Journal of Botany, EarlyView.
Bauhinia, the most species‐rich genus of Cercidoideae (Leguminosae), is pantropically distributed and includes four sections in the Americas. During an ongoing taxonomic revision of American Cercidoideae, a new species of Bauhinia sect. Amaria ser. Decandrae currently endemic to Colombia was identified and is here described as Bauhinia naniflorasp nov.
Luis Carlos Casas‐Restrepo, Andrés Fonseca‐Cortés, Rita Fábia da Silva Calixto, Luciano Paganucci de Queiroz, Adilva de Souza Conceição   +4 more
wiley   +1 more source

The metaphors in Truth and Heart: a comparative study of the phraseological lexicon from a parallel corpus

Signo, 2019
This paper aims to carry out the analysis of the phraseological lexicon formed by the words truth and heart and their translations into Portuguese taken from a parallel corpus composed by the subtitles in English and Portuguese of five seasons of the ...
Marilei Amadeu Sabino, Adriane Orenha-Ottaiano, Ariane Donizete Delgado Ribeiro Caldas   +2 more
doaj   +1 more source

Juvenile and Pubertal Exposure to Polystyrene Nanoplastics Impairs Epididymal Structure and Sperm Quality in Mice

Environmental Toxicology, EarlyView.
ABSTRACT Nanoplastics (NPs) are emerging environmental contaminants capable of crossing biological barriers, accumulating in tissues, and disrupting physiological pathways. The male reproductive system is particularly vulnerable during the postnatal period, a developmental window characterized by intense testicular differentiation and epididymal ...
Gabriel Magalhães Oliveira Rigo, Nicoly Caixêta Gonçalves, Cristiana Livramento Oliveira Pinto, Patrícia Corona Lopes, Raul Silva Santarem, Juliana Reis Machado, Régia Caroline Peixoto Lira, Ana Paula Ramos, Marcos Vinicius da Silva, Hugo Felix Perini, Gláucia Eloisa Munhoz de Lion Siervo   +10 more
wiley   +1 more source