Results 51 to 60 of about 1,034,857 (272)

Improvement of Mouse Spermatozoa Freezing at ‐80°C With Ascorbic Acid 2‐Glucoside at Thawing Phase

Andrology, EarlyView.
ABSTRACT Background Sperm cryopreservation is the most common method to maintain a great number of mutant mouse lines. However, the use of liquid nitrogen (LN2) for freezing presents considerable problems in terms of cost, safety, and accessibility. For this reason, the storage of semen samples at ‐80° in ultra‐freezers has been increasingly used in ...
Alessia Paradiso, Renata Paoletti, Simone Cassetti, Nicola Bernabò, Barbara Barboni, Marcello Raspa, Ferdinando Scavizzi   +6 more
wiley   +1 more source

Determinación de cadmio y plomo en agua, sedimento y organismos bioindicadores en el Estero Salado, Ecuador

, 2018
Evidence of pollution by heavy metals have been detected in the city of Guayaquil, province of Guayas, coastal Ecuador. The water and sediment in the mangrove environs of Puente Portete in Estero Salado were tested for concentrations of cadmium (Cd) and ...
Beatriz Margarita Pernía Santos, Mariuxi Mero, Xavier Cornejo, Nelson Ramírez-Prado, L. Ramírez, Kenya Bravo, David López, Jorge Muñoz, J. Zambrano   +8 more
semanticscholar   +1 more source

A link between increased temperature and avian body condition in a logged tropical forest

Conservation Biology, EarlyView.
Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi, Geoffrey Muhanguzi, David Eryenyu, Patrick Arua, Mnason Tweheyo, Michael A. Patten, Amy Elizabeth Eycott, Fred Babweteera   +7 more
wiley   +1 more source

The chaetognatha of the Eastropic Expedition, with notes as to their possible value as indicators of hydrographic conditions [PDF]

, 1959
ENGLISH: The purpose of this study was to investigate the possibility that certain species of Chaetognatha found in Eastern Tropical Pacific waters can serve as biological indicators of oceanographic features. "Indicator" organisms have been found useful
Renner, James A., Sund, Paul N.
core  

Las políticas sobre educación básica en américa latina: las perspectivas de los organismos internacionales

, 2017
Este articulo busca contribuir a la comprension de como se estructura actualmente la agenda de reforma educativa en la region. Uno de los principales instrumentos que utilizan las organizaciones internacionales en la definicion de la agenda y el discurso
Jorge M. Gorostiaga, Lucía Ferrere
semanticscholar   +1 more source

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

Conservation Biology, EarlyView.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta, Catriona M. Harris, Lori H. Schwacke, Len Thomas, Jason B. Allen, Aaron A. Barleycorn, Marco Casoli, Jonathan Crossman, Laura Aichinger Dias, Laura Engleby, Erin LaBrecque, Jenny A. Litz, Katherine A. McHugh, Patrick J. O. Miller, Michael J. Moore, Theoni Photopoulou, Brian M. Quigley, Cynthia R. Smith, Brandon L. Southall, Todd R. Speakman, Ryan Takeshita, Christina N. Toms, Randall S. Wells, Eric S. Zolman, Peter L. Tyack   +24 more
wiley   +1 more source

Use of probiotics in the catfish Sorubim cuspicaudus larviculture

Revista Colombiana de Biotecnología, 2023
Sorubim cuspicaudus, a migratory catfish distributed in the Magdalena, Sinú, and Catatumbo river basins, is categorized as vulnerable to extinction. Production of fingerlings in controlled environments stands as a strategic conservation approach, and ...
Edwin Herrera-Cruz, Gersson Vásquez-Machado, Ana Estrada-Posada, Kamylo Ivan Pardo-Camacho, Víctor Atencio-García, Jonny Andrés Yepes-Blandón   +5 more
doaj   +1 more source

Drivers of bat researchers’ intent to adopt field hygiene practices

Conservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman, Ewan A. Macdonald, Abigail L. Rutrough, Tanja M. Straka, Todd D. Little, Zachary Stickley, Tigga Kingston   +6 more
wiley   +1 more source

Organismos autónomos

Asamblea. Revista parlamentaria de la Asamblea de Madrid, 2004
Sumario: I. ACTIVIDADES PROPIAS DE LOS ORGANISMOS PÚBLICOS.—1.1. Breve aproximación histórica a la figura de los entes instrumentales: en especial, los Organismos Autónomos.—1.1.1. Primeras aproximaciones del legislador a la figura de los organismos autónomos.—1.1.2. El intento de sistematización del régimen jurídico de los organismos autónomos: la Ley
openaire   +1 more source

Ocm: Organismos Culturalmente Modificados

HYBRIS: Revista de Filosofía, 2017
Con la palabra “biotecnología” podemos entender una tecnología que modifica la vida en el sentido de zoé o de bios. Mientras en el primer caso hablamos de OGM (Organismos Genéticamente Modificados), en el segundo sería más indicado hablar de OCM (Organismos Culturalmente Modificados).
openaire   +2 more sources