Results 101 to 110 of about 383,533 (302)

Variation in pollen limitation among reproductive modules points to likely resource reallocation in the alpine plant Veratrum grandiflorum

Nordic Journal of Botany, EarlyView.
Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang, Kai‐Hsiu Chen, Shengman Lyu, Ling Liu, Meixian Yu, John R. Pannell, Guoxing Cao   +6 more
wiley   +1 more source

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

Nordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe, Dennis I. Medina, Saban Sequen, Maura L. Quezada   +3 more
wiley   +1 more source

La retroalimentación en la comprensión de textos escritos. Una revisión sistemática de la literatura

Revista Complutense de Educación
Este artículo presenta una revisión sistemática de investigaciones que examinan la relación entre la retroalimentación y la comprensión de lectura en contextos de educación primaria.
Valeria Quiroz, Pelusa Orellana, Francisca Valenzuela, Carolina Melo, Carolina Silva   +4 more
doaj   +1 more source

The Andean movements of Groeber and the tectonic evolution of the southern Central Andes [PDF]

, 2017
Uno de los aportes más significativos de Pablo Groeber al conocimiento de los Andes fue su estudio de los movimientos tectónicos asociados al levantamiento de la cordillera.
Giambiagi, Laura Beatriz, Mescua, Jose Francisco, Ramos, Victor Alberto   +2 more
core  

The relative roles of in situ diversification and lineage dispersal underlying diversity patterns at the assemblage level

Oikos, EarlyView.
Speciation, extinction, and dispersal are the historical processes influencing the spatial distribution of lineages and strongly influence diversity patterns. Here, we apply a recently developed methodological approach to quantify the relative legacies in situ diversification history (i.e.
Arthur Vinicius Rodrigues, Gabriel Nakamura, Leandro Duarte   +2 more
wiley   +1 more source

When Politics Shapes Administration: Bureaucratic Autonomy, Policy Role Separation, and Organizational Capacity in an Institutionally Weak Public Administration

Public Administration and Development, EarlyView.
ABSTRACT This study examines the impact of administrative autonomy and the separation of roles in public policy on organizational capacity within hybrid public administration systems, particularly in Colombia. It explores the dynamics between elected officials and civil servants, focusing on how the division of responsibilities and the autonomy granted
Camilo Ignacio González, Pablo Sanabria‐Pulido   +1 more
wiley   +1 more source

Modificaciones de los lípidos séricos de ratas suplementadas con cobre por vía oral

Archivos Latinoamericanos de Nutrición
Los trastornos en el metabolismo de los lípidos durante la carencia de cobre en las ratas son muy conocidos. La deficiencia de Cu se asocia con la retención espontánea de hierro hepático.
Oscar M. Alarcón-Corredor, Elizabeth Carnevalí de Tatá, José Reinosa-Füller, Yaritza Contreras, María Ramírez de Fernández, Claudia Yánez-Domínguez   +5 more
doaj  

Where Have I Seen You Before? Networks, Trust and Reciprocity as a Source of Collaboration in the Public Service

Public Administration and Development, EarlyView.
ABSTRACT Although some studies focus on how bureaucrats' interactions with one another affect performance, they rarely focus on why these public servants collaborate. Bureaucrats' collaboration matters because it can significantly contribute to achieving policy goals.
Nathalie Mendez
wiley   +1 more source

Deslizamiento en céntrica y la prevalencia de ruido y/o sintomatología mioarticular de las ATM. Estudio descriptivo

International Journal of Interdisciplinary Dentistry
Introducción: El deslizamiento en céntrica (DC) y su incidencia en la sintomatología mioarticular ha sido un tema ampliamente estudiado, sin embargo, aún no está clara la relación entre ambos fenómenos.
Andrés Velasco, Víctor Rojas, Arturo Manns, Carlos Vega, Daniela Vicuña   +4 more
doaj   +1 more source

Floristics of the South American Páramo moss flora [PDF]

, 1990
The South American paramos appeared in Pliocene times and persist to the present day. The moss flora of this habitat consists of an estimated 400 species that comprise 8 floristic groups.
Griffin, Dana
core