Results 61 to 70 of about 12,659 (195)

Biology of Meccus pallidipennis (Hemiptera: Reduviidae) to Other Conditions than that Encountered in Their Native Habitat

open access: yesJournal of Arthropod-Borne Diseases, 2018
Background: Meccus pallidipennis (Hemiptera: Reduviidae) is only found in Mexico and is one of the most important vectors for Trypanosoma cruzi transmission there.
Edson Franzim-Junior   +8 more
doaj  

Stelletta ruetzleri sp. nov., a new ancorinid from the Southwestern Atlantic (Porifera, Astrophorida)

open access: yesScientia Marina, 2002
Stelletta ruetzleri sp. nov., a new ancorinid sponge from the Southwestern Atlantic (Porifera, Astrophorida), collected at 128 and 200 m depth off Rio Grande do Sul State coast, Brazil (31°20´-32°24´S/49°52´-50°15´W), is described and illustrated with ...
Beatriz Mothes, Carla Maria M. Silva
doaj   +1 more source

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa   +8 more
wiley   +1 more source

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

open access: yesJournal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro   +2 more
wiley   +1 more source

ENSINO DE CIÊNCIAS NATURAIS

open access: yes, 2017
Dados de identificaçãoCurso: PedagogiaDisciplina: Ensino de Ciências NaturaisPeríodo: 5ºObjetivos da ação Capacitar os acadêmicos a dominarem recursos didático-pedagógicos adequados ao desenvolvimentode aprendizagens significativas dos conteúdos de ...
FERP, UGB, de Oliveira, Hebe
core   +1 more source

A INTERDISCIPLINARIDADE NA FORMAÇÃO INICIAL DOS PROFESSORES DE CIÊNCIAS NATURAIS

open access: yes
A interdisciplinaridade é um termo comum no cenário das pesquisas, documentos e diretrizes para a educação brasileira. Pesquisas recentes alertam que, dentre outros aspectos, não cabe mais uma formação docente de forma linear e fragmentada.
Santos, Taís Conceição dos   +1 more
core   +2 more sources

Síntese de éster de cadeia longa via catálise básica heterogênea (Synthesis of long chain ester by heterogeneous base catalysis)

open access: yesEclética Química, 2018
A long chain ester was prepared by transesterification of methyl palmitate with long chain alcohol using magnesium oxide as catalyst prepared by thermal decomposition of different precursors with the intention of establish relations among structural ...
Dorsan dos Santos Moraes   +2 more
doaj   +1 more source

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

open access: yesJournal of Fish Biology, EarlyView.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa   +6 more
wiley   +1 more source

Density Functional Theory Applied to Excited State Intramolecular Proton Transfer in Imidazole-, Oxazole-, and Thiazole-Based Systems

open access: yesMolecules, 2018
Excited state intramolecular proton transfer (ESIPT) is a photoinduced process strongly associated to hydrogen bonding within a molecular framework. In this manuscript, we computed potential energy data using Time Dependent Density Functional Theory ...
Fabricio de Carvalho   +3 more
doaj   +1 more source

Competition Between Phenothiazines and BH3 Peptide for the Binding Site of the Antiapoptotic BCL-2 Protein

open access: yesFrontiers in Chemistry, 2020
The study of proteins and mechanisms involved in the apoptosis and new knowledge about cancer's biology are essential for planning new drugs. Tumor cells develop several strategies to gain proliferative advantages, including molecular alterations to ...
Aline Lagoeiro do Carmo   +7 more
doaj   +1 more source

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