Results 121 to 130 of about 514,942 (258)

ESTILOS DE LIDERAZGO Y RESULTADOS DEL SISTEMA DE MEDICIÓN DE LA CALIDAD DE LA EDUCACIÓN: UN ESTUDIO EMPÍRICO EN LOS COLEGIOS BÁSICOS DE LA CIUDAD DE ARICA-CHILE LEADERSHIP STYLES AND RESULTS OF EDUCATION QUALITY MEASURING SYSTEM: AN EMPIRICAL STUDY IN ARICA-CHILE ELEMENTARY SCHOOLS

Ingeniare: Revista Chilena de Ingeniería, 2009
La presente investigación pretende estudiar si existe o no una relación estadísticamente significativa entre los estilos de liderazgo y los resultados que los estudiantes obtienen en la prueba nacional del sistema de medición de la calidad de la ...
Liliana Pedraja-Rejas, Emilio Rodríguez-Ponce, Manuel Barreda Olavarría, Omar Sagredo Núñez, Cristian Segovia León   +4 more
doaj  

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

Journal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro, Raquel Lopes Queiroz, Cristiéle da Silva Ribeiro   +2 more
wiley   +1 more source

La dinámica de un territorio: evolución del espacio rural de Jaén desde época romana hasta la repoblación castellana

Studia Historica. Historia Medieval, 2009
RESUMEN: Este artículo estudia de manera diacrónica la evolución del territorio en torno a Jaén desde el final de la época romana hasta la conquista y repoblaáón cristíana.
Eva María ALCÁZAR HERNÁNDEZ
doaj  

The Determinants of Negotiated Pharmaceutical Prices

The Journal of Industrial Economics, EarlyView.
ABSTRACT We focus on the determinants of pharmaceutical drug prices. Using data from the Brazilian pharmaceutical market, we find large variations in drug prices across buyers, drug classes, and time periods. Our estimation results provide evidence that transaction‐specific determinants between buyers and sellers (e.g., transaction volume, buyer's ...
Ralph B. Siebert, Sebastian Linde, Brandon Norton   +2 more
wiley   +1 more source

AI Platforms as Cooperation Enablers Favoring the Development of Strategic Situating Capabilities Within Solution Delivery Ecosystems

Journal of Product Innovation Management, EarlyView.
ABSTRACT Academic Summary By integrating artificial intelligence (AI) platforms into their processes, firms aim to enhance their strategic capabilities and gain a competitive advantage. This study investigates the impact of such platforms on value generation within solution‐based strategies, proposing two connected mechanisms.
Yancy Vaillant, Esteban Lafuente, Ferran Vendrell‐Herrero   +2 more
wiley   +1 more source

Prevalence and Risk Factors for Obstructive Sleep Apnea in São Paulo: Findings From the 4th Edition of the EPISONO Study

Journal of Sleep Research, EarlyView.
ABSTRACT Obstructive sleep apnea (OSA) affects around 936 million individuals worldwide, making it the most prevalent breathing‐related sleep disorder. The aim was to estimate the prevalence of OSA in São Paulo, Brazil, based on data from the São Paulo Epidemiologic Sleep Study (EPISONO) 4th edition.
Sergio Tufik, Allan Saj Porcacchia, Gabriel Natan Pires, Monica Levy Andersen   +3 more
wiley   +1 more source

Una economía política para el sistema rural en Galicia [PDF]

, 2013
[Resumen] El campo en Galicia está al final de una larga etapa de transición. Se asiste a la transformación de un sistema agrícola total, que era el existente hace décadas en nuestro agro y que informaba cultural y económicamente toda una forma o modo de
Arosa Gómez, Constantino A.
core   +1 more source

Automated extraction of leaf mass per area from digitized herbarium specimens

New Phytologist, EarlyView.
Summary The digitization of vast herbarium collections has made millions of plant specimen images freely available online, which can now be used to generate phenotypic datasets of unprecedented scope. Here, we assess the potential of computer vision tools to automate the extraction of predicted leaf mass per area (LMApred) from digitized herbarium ...
Thais Vasconcelos, William N. Weaver, Aly Baumgartner, Zoë Bugnaski, James Boyko   +4 more
wiley   +1 more source

Specimen‐tailored ‘lived’ climate reveals precipitation onset and amount best predict specimen phenology, but only weakly predict estimated reproduction across a clade

New Phytologist, EarlyView.
Summary Herbarium specimens are widely distributed in space and time, thereby capturing diverse conditions. We reconstructed specimen ‘lived’ climate from knowledge of germination cues and collection dates for 14 annual species in the Streptanthus (s.l.) clade (Brassicaceae) to ask: which climate attributes best explain specimen phenological stage and ...
Megan Bontrager, Samantha J. Worthy, Laura Leventhal, Julin N. Maloof, Jennifer R. Gremer, Johanna Schmitt, Sharon Y. Strauss   +6 more
wiley   +1 more source

Three closely linked X‐chromosomal genes potentially control sex determination in Cannabis sativa

New Phytologist, EarlyView.
Summary Sex determination mechanisms in dioecious plants remain poorly understood yet offer an excellent model system to study genetic changes underlying morphological evolution. We investigated the genetic basis of sex determination in Cannabis sativa, combining quantitative trait locus mapping in a segregating population, comparative transcriptomics ...
Matteo Toscani, Afsheen Malik, Ainhoa Riera‐Begue, Caroline A. Dowling, Quentin Rougemont, Ricardo C. Rodríguez de la Vega, Tatiana Giraud, Susanne Schilling, Rainer Melzer   +8 more
wiley   +1 more source