Results 71 to 80 of about 15,605 (225)

Características histológicas del útero de Sympterygia acuta (Garman, 1877) y Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes; Rajidae) [PDF]

open access: yes, 2013
Los condrictios constituyen un clado sumamente conservado y vulnerable a la explotación, que ha cobrado una importancia creciente en los últimos años. Sin embargo, existe poca información sobre los aspectos morfológicos relacionados con la reproducción ...
Díaz Andrade, María Constanza   +2 more
core   +1 more source

Interpersonal Connections and Career Mobility in Bureaucratic Labor Markets: Evidence From Brazil

open access: yesPublic Administration Review, EarlyView.
ABSTRACT Interpersonal networks are pervasive in state bureaucracies around the world. To what extent do they explain bureaucratic career trajectories? And are they driven more by political patronage and connections to influential bosses, or by information‐sharing and trust‐building among peers?
Danilo Cardoso   +6 more
wiley   +1 more source

Hatching Strategies in Monogenean (Platyhelminth) Parasites that Facilitate Host Infection [PDF]

open access: yes, 2011
In parasites, environmental cues may influence hatching of eggs and enhance the success of infections. The two major endoparasitic groups of parasitic platyhelminths, cestodes (tapeworms) and digeneans (flukes), typically have high fecundity, infect more
Armstrong   +13 more
core   +1 more source

Eye Movement Dynamics in the Dogfish [PDF]

open access: yesJournal of Experimental Biology, 1983
ABSTRACT A method is described of obtaining the relationship between electrical stimulation of the abducens nerve and horizontal eye movement in the dogfish. The stump of the Vlth nerve was stimulated intracranially in a fish in which the brain had been removed, but in which the circulation remained intact, and the gills were perfused ...
openaire   +2 more sources

Governance Structures, Political Change and Executive Turnover in State‐Owned Enterprises: Evidence From Chile

open access: yesRegulation &Governance, EarlyView.
ABSTRACT To address the shortcomings associated with state ownership, countries have implemented various legal strategies to curb political influence in state‐owned enterprises. This research studies whether these strategies constrain the government's ability to use their appointment powers for political considerations.
Pablo Torres
wiley   +1 more source

Sharks - The State of the Science [PDF]

open access: yes, 2010
The biological characteristics of sharks make them particularly vulnerable to overfishing. They grow slowly, become sexually mature relatively late and produce few offspring.
Alexia C. Morgan
core  

Blue plaque review series: Thomas Graham Brown: Before his time

open access: yesExperimental Physiology, EarlyView.
Abstract Thomas Graham Brown made a seminal discovery, published in 1911 while he was a Carnegie Fellow in the University of Liverpool laboratory of Nobel Prize winner Charles S. Sherrington. Working in cats, he showed that rhythmic ‘voluntary’ behaviour, such as stepping and, by inference, walking, does not result from a chain of reflex events, but ...
Ronald L. Calabrese, Eve Marder
wiley   +1 more source

New record of Squalus cubensis Howell Rivero, 1936 (Chondrichthyes, Squalidae) in Colombia

open access: yesUniversitas Scientiarum, 2016
Two Cuban dogfish Squalus cubensis (Squalidae) are recorded for the first time in the area of influence of Isla Fuerte, an island located at the limit of the southern continental shelf of the Colombian Caribbean.
Diana María Orozco-Velásquez   +1 more
doaj   +1 more source

European Shark Fisheries: A Preliminary Investigation into Fisheries, Conversion Factors, Trade Products, Markets and Management Measures [PDF]

open access: yes, 2007
Recommends new regulations to prevent shark finning -- an illegal practice in which a shark's fins are removed and its carcass dumped at sea -- and stresses the urgent need for effective shark conservation ...
Bernard Seret   +11 more
core  

Adoption of Digital Technologies in Public Health Crises: An International Large‐Scale Survey

open access: yesPublic Health Nursing, Volume 43, Issue 3, Page 681-692, May/June 2026.
ABSTRACT Objectives To examine nurses’ adoption and use of digital technologies across six countries during the COVID‐19 pandemic and identify lessons to strengthen preparedness for future public health crises. Methods Nurses in Australia, Finland, New Zealand, Switzerland, the United Kingdom and the United States completed an international cross ...
Laura‐Maria Peltonen   +9 more
wiley   +1 more source

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