Results 51 to 60 of about 212,421 (169)

Policitemia Vera en el perro : a propósito de un caso clínico [PDF]

open access: yes, 1996
Se describe un caso de policitemia vera en perro. Se discute el diagnóstico diferencial del proceso, pronóstico y tramiento.A c1inical case of primary polycythemia in a dog is described.
Aceña Fabián, M. Carmen   +4 more
core  

Selection of the level of vibration signal decomposition and mother wavelets to determine the level of failure severity in spur gearboxes

open access: yesQuality and Reliability Engineering International, Volume 40, Issue 6, Page 3439-3451, October 2024.
Abstract Spur gearboxes are an integral component in the operation of rotary machines. Hence, the early determination of the severity level of a failure is crucial. This manuscript delineates a methodology for selecting essential mother wavelets and filters from the wavelet transform (WT) to process the vibration signal within the time‐frequency domain,
Antonio Pérez‐Torres   +2 more
wiley   +1 more source

Condiciones meteorológicas a mesoescala que favorecen la ocurrencia de convección profunda en el Occidente de Cuba

open access: yesRevista Cubana de Meteorología, 2013
Con miras a desarrollar esta investigación se seleccionaron los casos de brotes de tiempo severo ocurridos en el período lluvioso (mayo-octubre) de 1999 a 2011 para la región occidental de Cuba.
Carlos Manuel González Ramírez   +1 more
doaj  

Situating Grammar Instruction in the World Language Classroom: Four Content-Enriched Strategies [PDF]

open access: yes, 2009
The role of grammar instruction in promoting communicative competence continues to be a controversial issue for the world language classroom teacher. Second language acquisition research suggests that critical to sustained progress in language use is a ...
Hernández, Todd A.
core   +1 more source

Effects of increasing soil moisture on Antarctic desert microbial ecosystems

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Overgeneralization and a lack of baseline data for microorganisms in high‐latitude environments have restricted the understanding of the microbial response to climate change, which is needed to establish Antarctic conservation frameworks. To bridge this gap, we examined over 17,000 sequence variants of bacteria and microeukarya across the ...
Eden Zhang   +9 more
wiley   +1 more source

Global mismatches between threat mapping research effort and the potential of threat abatement actions to reduce extinction risk

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Threat mapping is a necessary tool for identifying and abating direct threats to species in the ongoing extinction crisis. There are known gaps in the threat mapping literature for particular threats and geographic locations, and it remains unclear if the distribution of research effort is appropriately targeted relative to conservation need ...
Francesca A. Ridley   +5 more
wiley   +1 more source

Efectos de la propagación anómala sobre los niveles de radiación de microondas emitidas al entorno por un radar

open access: yesRevista Cubana de Meteorología, 2016
Los radares meteorológicos desempeñan un papel fundamental en el pronóstico a muy corto plazo de tormentas locales severas y precipitaciones intensas, así como para estudiar el clima a partir de la frecuencia, la duración y la distribución espacio ...
Orlando Lázaro Rodríguez González   +2 more
doaj  

Analyzing peptides and proteins by mass spectrometry: principles and applications in proteomics [PDF]

open access: yes, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166The study of proteins has been a key element in biomedicine and biotechnology because of their important role in cell functions or enzymatic activity. Cells are the basic unit of living
Estanyol i Ullate, Josep Maria   +3 more
core   +1 more source

Relationship between two pathogens in an amphibian community that experienced mass mortalities

open access: yesConservation Biology, Volume 38, Issue 3, June 2024.
Abstract Because host species tend to harbor multiple parasitic species, coinfection in a host is common. The chytrid fungus Batrachochytrium dendrobatidis (Bd) and the viruses in the genus Ranavirus (Rv) are responsible for the decline of amphibians worldwide.
Barbora Thumsová   +4 more
wiley   +1 more source

Pronóstico del compromiso de médula ósea en pacientes con linfoma no Hodgkin Hospital Militar Bogotá [PDF]

open access: yes, 2013
Los linfomas no Hodgkin pueden tener un comportamiento diferente de acuerdo a la presencia de compromiso tumoral en la médula ósea, sin embargo no todos los estudios han reportado hallazgos similares en este aspecto.
Lombana Quiñonez, Milton Alberto   +1 more
core  

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