Results 41 to 50 of about 96,473 (198)

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga   +4 more
wiley   +1 more source

Balancing mechanics and metabolism: Elevational variation in the microanatomy of hummingbird flight muscle

open access: yesThe Anatomical Record, EarlyView.
Abstract Factors varying along elevational gradients impose strong aerodynamic and physiological constraints on powered flight, yet the internal microanatomical variation associated with elevational context in animals under such conditions remains poorly understood.
Juan Camilo Ríos‐Orjuela   +5 more
wiley   +1 more source

La confusa taxonomía de Cryptosporidium

open access: yesRevista Peruana de Biología, 2006
Los últimos descubrimientos en la biología y filogenética de Cryptosporidium refuerzan la necesidad de una exhaustiva revisión del ciclo de vida y la taxonomía de este parásito.
Gregorio Pérez-Cordón
doaj   +1 more source

One‐Pot Synthesis of a Small Synthetic Ligand for Antibody Purification

open access: yesBiotechnology and Bioengineering, EarlyView.
One‐pot liquid‐phase synthesis of the synthetic ligand B1Al2A2 enables controllable ligand density and efficient capture of IgG and IgY with high recovery and purity, streamlining small‐ligand affinity purification workflows. ABSTRACT The development of synthetic affinity ligands offers a cost‐effective alternative to traditional biological ligands ...
Carolina Mota Natal   +8 more
wiley   +1 more source

Niveles de comprensión lectora en alumnos de secundaria. Una comparación por tópico.

open access: yesActualidades en Psicología, 2015
Con base en los planteamientos de la psicología interconductual se desarrollaron y validaron dos pruebas para evaluar tres niveles de comprensión lectora de textos relacionados con dos tópicos: uno literario y uno de biología. El objetivo fue analizar el
Yolanda Guevara Benítez   +2 more
doaj   +1 more source

Bridging the Python Training Gap for Bioscientists in Brazil: Improvements and Challenges

open access: yesBiochemistry and Molecular Biology Education, EarlyView.
ABSTRACT The rapid evolution of high‐throughput technologies in biosciences generates vast and diverse datasets, demanding that bioscientists develop advanced data manipulation and analysis skills. Python, with its versatility and powerful libraries, has become a crucial tool for managing these datasets.
Gustavo Schiavone Crestana   +12 more
wiley   +1 more source

Entrevista con Ellen Dissanayake

open access: yesArbor: Ciencia, Pensamiento y Cultura
Ellen Dissanayake (Rock Island, 1936) es una escritora e investigadora independiente, con una trayectoria vinculada a la Universidad de Washington.
Montserrat Sobral Dorado
doaj   +1 more source

DESARROLLO Y CRECIMIENTO FEMORAL DE CONEJAS DE LA LÍNEA NEW ZEALAND

open access: yesActa Biológica Colombiana, 2021
En este proyecto se investigan los cambios que acontecen en el desarrollo y crecimiento de conejos hembras de la línea New Zealand (CoNZ) en sus huesos femorales.
Iván Nadir Camal Ruggieri   +4 more
doaj  

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

open access: yesBiological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini   +13 more
wiley   +1 more source

Nuevos datos sobre algunas especies de crisópidos de la Península Ibérica, islas Baleares e islas Canarias (Insecta, Neuroptera, Chrysopidae)

open access: yesGraellsia, 2014
Se aportan nuevos datos de 41 especies de crisópidos de las Faunas Ibérica, Balear y Canaria. Se redescribe la morfología externa y genital de Chrysopa nigricostata Brauer, 1850 y se corrigen sus citas erróneas de España y Portugal, que mayoritariamente ...
Víctor J. Monserrat   +2 more
doaj   +1 more source

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