Results 41 to 50 of about 13,115 (152)
Osteohistology of two phorusrhacids reveals uninterrupted growth strategy
The Anatomical Record, EarlyView.Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer +2 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González +5 more
wiley +1 more source
The Anatomical Record, EarlyView.This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti +2 more
wiley +1 more source
COMPORTAMIENTO AGRONÓMICO DE LÍNEAS PARA LA PRODUCCIÓN DE SEMILLA DE SORGO
Agronomía Mesoamericana, 2013 El objetivo de esta investigación fue evaluar el comportamiento agronómico de líneas isogénicas A, B y líneas R restauradoras de la androfertilidad de sorgo para grano. El ensayo se realizó durante el ciclo primavera-verano 2009-2010 en Marín Nuevo León,
Antonio Flores-Naveda +5 more
doaj +3 more sources
Revista UIS IngenieríasEste estudio analiza el efecto de la incorporación de diferentes dosis y tipos de antibióticos, específicamente vancomicina (polvo) y gentamicina (líquido), en las propiedades mecánicas del cemento óseo de baja viscosidad.
Santiago Medina +2 more
doaj +1 more source
Revista Técnica Energía, 2020 El presente artículo propone una metodología para la planificación y control de la ejecución de mantenimientos preventivos y correctivos de líneas de subtransmisión a través de la implementación del método de Gravedad, Urgencia y Tendencia “GUT” que ...
Christian Ortiz, Gabriel Salazar
doaj +1 more source
The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution
The Anatomical Record, EarlyView.Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley +1 more source
Aptitud combinatoria general y específica de líneas tropicales de maíz usando probadores.
Agronomía Mesoamericana, 2006 Durante el ciclo O - I 1996/97 fueron evaluados en el Campo Experimental Cotaxtla mestizos de líneas sobresalientes y provenientes de varias fuentes de germoplasma como son : a) Líneas recicladas de H-513 X VS-536, b) Líneas derivadas de un compuesto de ...
Mauro Sierra +4 more
doaj +1 more source
Jackknife bias‐corrected variance estimation for the generalized regression estimator
Canadian Journal of Statistics, EarlyView.Abstract Commonly used variance estimators for the generalized regression estimator (GREG) are based on Taylor linearization and jackknife. Traditionally, a jackknife GREG variance estimator is obtained by jackknifing GREG, which consists of computing GREG from each of several subsamples of the parent sample, and estimating the variance of the parent ...
Marius Stefan, J.N.K Rao
wiley +1 more source
Equine Veterinary Journal, EarlyView.Abstract Background Gastric outflow obstruction in horses is a rare but challenging condition, often resulting from either congenital anomalies or acquired lesions such as chronic ulceration or pyloric polyps. Conventional surgical bypass procedures, including gastrojejunostomy (GJ) or gastroduodenostomy and less commonly duodenojejunostomy, can ...
Marco Gandini +4 more
wiley +1 more source