Results 81 to 90 of about 164,519 (243)

A remarkable new species of Zethus Fabricius (Hymenoptera, Vespidae, Eumeninae) from Costa Rica [PDF]

open access: yes, 2009
Porter, new species, is described from Costa Rica. It forms a species group of its own, unique in its grotesquely enlarged male mandibles and reduced clypeus, single mid tibial spur, and in having a medio-apical bulge on the second sternite.
Porter, Charles C.
core  

A new golden frog species of the genus Diasporus (Amphibia, Eleutherodactylidae) from the Cordillera Central, western Panama [PDF]

open access: yes, 2012
We describe the frog species Diasporus citrinobapheussp. n. from the Cordillera Central of western Panama. The new species differs from all other species in its genus in coloration, disk cover and disk pad shape, skin texture, advertisement call, and ...
Hauenschild, Frank   +3 more
core   +3 more sources

Fluorescent Supramolecular Gels Based on D‐Sorbitol Derivatives

open access: yesSmall, EarlyView.
Sugar‐based fluorescent low‐molecular‐weight gelators (LMWGs) DNapS, DBTDS, and MCumS, prepared by a green, scalable route, form supramolecular gels in water, organic, and deep eutectic solvents. MCumS yields solvent‐dependent nanofibrous networks and viscoelastic injectable eutectogels.
Emmanuel Odella   +5 more
wiley   +1 more source

Turismo de segundas residencias y turismo de naturaleza en el espacio rural mexicano

open access: yesEstudios Sociales, 2015
La posmodernidad y los imaginarios urbanos son aspectos que contribuyen a la hegemonía de la ciudad sobre el campo. El turismo es un agente fundamental en este proceso y dos aspectos importantes son el turismo de segundas residencias y el turismo basado ...
David Vargas del Río
doaj  

The mediterranean overflow in the Gulf of Cadiz: a rugged journey [PDF]

open access: yes, 2017
The pathways and transformations of dense water overflows, which depend on small-scale interactions between flow dynamics and erosional-depositional processes, are a central piece in the ocean's large-scale circulation.
Bahr   +33 more
core   +2 more sources

Diving Deeper Into Mechanisms of Acrylamide‐Induced Toxicity: RNA Sequencing Reveals Transcriptomic Alteration and Retrotransposon Expression in Drosophila melanogaster

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Given the inevitability of human and animal exposure to acrylamide, there is increasing concern regarding its potential health risks. While a number of molecular mechanisms have been proposed, the complexity of acrylamide toxicological pathways and interactions remains incompletely characterized.
Oluwabukola Mary Farodoye   +5 more
wiley   +1 more source

Comparison of four different programs for the analysis of hemispherical photographs using parameters of canopy structure and solar radiation transmittance [PDF]

open access: yes, 2013
There have been many studies involving the use of hemispherical photographs to indirectly estimate canopy structures and forest light environments.
Butler-Manning, David   +6 more
core  

Unraveling the impact of dog‐friendly spaces on urban–wildland pumas and other wildlife

open access: yesWildlife Biology, EarlyView.
As the most widespread large carnivore on the planet, domestic dogs Canis lupus familiaris can pose a major threat to wildlife, even within protected areas (PAs). Growing human presence in PAs, coupled with increasing pet dog ownership underscores the urgency to understand the influence of dogs on wildlife activity and health.
Alys Granados   +3 more
wiley   +1 more source

A influência da prática das enfermeiras obstétricas na construção de uma nova demanda social [The influence of obstetric nurses’ practice in building a new social demand]

open access: yesRevista Enfermagem UERJ, 2013
Este estudo objetivou discutir as percepções das mulheres sobre a prática das enfermeiras obstétricas e analisar os efeitos desta prática sobre as mulheres. Trata-se de uma pesquisa qualitativa que utilizou a análise de conteúdo de Bardin.
Juliana Amaral Prata   +1 more
doaj   +2 more sources

A Casa de Parto David Capistrano Filho pelas lentes de uma fotógrafa

open access: yesHistória, Ciências, Saúde: Manguinhos
Resumo Esse artigo é resultado do acompanhamento fotodocumental à Casa de Parto David Capistrano Filho por 12 anos descontinuados (entre 2005 e 2017).
Adriana Medeiros
doaj   +1 more source

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