Results 41 to 50 of about 3,837 (260)

Sexual dimorphism in epicuticular compounds despite similar sexual selection in sex role‐reversed seed beetles [PDF]

open access: yesJournal of Evolutionary Biology, 2017
AbstractSexual selection imposed by mating preferences is often implicated in the evolution of both sexual dimorphism and divergence between species in signalling traits. Epicuticular compounds (ECs) are important signalling traits in insects and show extensive variability among and within taxa.
I. Booksmythe, H. D. Rundle, G. Arnqvist
openaire   +2 more sources

Adhesion‐Related Macrophages Regulate Metabolic Homeostasis Through CAV‐1 Dependency

open access: yesAdvanced Science, EarlyView.
Adipose tissue harbors a distinct macrophage subpopulation, termed adhesion‐related macrophages (ARMs), which stably adhere to adipocytes. In obesity, ARMs represent the major expanding macrophage subset. They acquire material from adipocytes and rely on Caveolin‐1 for sustained lipid handling.
Wanyu Hu   +23 more
wiley   +1 more source

CARACTERIZACIÓN MOLECULAR DE DOS PACIENTES 46 XY, FENOTIPO FEMENINO. SÍNDROME DE SWYER

open access: yesArchivo Médico de Camagüey, 2004
El síndrome de Swyer es un desorden de la diferenciación sexual en el cual los pacientes exhiben un fenotipo femenino con cariotipo 46 XY e hipoplasia gonadal sin células germinales.
Juan Carlos Piña Napal   +3 more
doaj  

Individualized Atrophy‐Based Prediction of Dementia Progression in Familial Frontotemporal Lobar Degeneration With Bayesian Linear Mixed‐Effects Modeling

open access: yesAnnals of Neurology, EarlyView.
Objective Age of symptom onset is highly variable in familial frontotemporal lobar degeneration (f‐FTLD). Accurate prediction of onset would inform clinical management and trial enrollment. Prior studies indicate that individualized maps of brain atrophy can predict conversion to dementia in f‐FTLD.
Shubir Dutt   +82 more
wiley   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Estandarización del manejo y la criopreservación de semen de hembras masculinizadas de trucha arco iris (Oncorhynchus mykiss) Padronizar a gestão ea criopreservação de sêmen de fêmeas de truta arco-íris (Oncorhynchus mykiss) sob masculinização Standardization of handling and freezing sperm from masculinized females of rainbow trout (Oncorhynchus mykiss)

open access: yesRevista Colombiana de Ciencias Pecuarias, 2008
La demanda de líneas monosexo hembras en la producción de trucha ha incrementado significativamente en los últimos años, por lo que se han desarrollado tecnologías para estandarizar este proceso como el uso de semen de hembras genéticas sometidas a ...
James J Betancur L   +4 more
doaj  

Reversão sexual de rã-touro (Rana catesbeiana) com hormônio masculinizante misturado à ração de girinos Sexual reversion of bullfrog with masculinizing hormone added to the tadpole ration

open access: yesRevista Brasileira de Zootecnia, 2001
Este trabalho consistiu em testar a eficiência de um hormônio masculinizante (17beta-hidróxi-17-metil-andróxi-4-en-3-ona) na reversão sexual de girinos de rã-touro (Rana catesbeiana).
Claudio Angelo Agostinho   +2 more
doaj   +1 more source

The power of many: when genetics met yeasts and high‐throughput

open access: yesBiological Reviews, EarlyView.
ABSTRACT In recent years, complex technological capabilities have evolved, driven by the need to solve complex and integrative biological questions through global analyses. New equipment allows the scaling up and automation of processes which previously were carried out on a very limited scale.
Víctor A. Tallada, Víctor Carranco
wiley   +1 more source

Validación del uso de inhibidores sintéticos de la aromatasa en la masculinización de la tilapia Oreochromis niloticus

open access: yesRevista Biológico Agropecuaria Tuxpan, 2014
La tilapia es una de las especies más cultivadas a nivel mundial; sin embargo, es una especie altamente precoz lo que afecta su crecimiento y ocasiona la superpoblación en las unidades de cultivo. Para prevenir este problema existe la opción de cultivar
Anabel Alanís González   +3 more
doaj   +1 more source

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