Results 141 to 150 of about 3,446,648 (273)

Cu, Mn, and Ag mineralization in the Quebrada Marquesa Quadrangle, Chile: the Talcuna and Arqueros districts [PDF]

open access: yes, 1998
The Quebrada Marquesa Quadrangle in Chile exhibits a series of mineralizations comprising manto-type manganese and copper deposits of Lower Creta-ceous age, and copper and silver veins of Tertiary age.
Lunar Hernández, Rosario   +4 more
core   +1 more source

Accommodating the Analysis Model in Multiple Imputation for the Weibull Mixture Cure Model: Performance Under Penalized Likelihood

open access: yesStatistics in Medicine, Volume 45, Issue 6-7, March 2026.
ABSTRACT Introduction In analysis of time‐to‐event outcomes, a mixture cure (MC) model is preferred over a standard survival model when the sample includes individuals who will never experience the event of interest. Motivated by a cohort study of breast cancer patients with incomplete biomarkers, we develop multiple imputation (MI) methods assuming a ...
Changchang Xu   +3 more
wiley   +1 more source

Menor remisión de V. menor de edad.

open access: yes, 2011
[ES] Definición del término Menor remisión de V. menor de edad. en el diccionario Dicter. [EN] Definition of the word Menor remisión de V. menor de edad. in the dictionary Dicter.
openaire   +1 more source

Factors That Influenced Coping With COVID‐19 During the Pandemic in Botswana

open access: yesWorld Medical &Health Policy, Volume 18, Issue 1, March 2026.
ABSTRACT This paper forms part of the broader Global South study, Personal and Family Coping with COVID‐19 in the Global South, which examines psychosocial and behavioral responses to the COVID‐19 pandemic. In Sub‐Saharan Africa, the pandemic posed significant psychological, social, and economic challenges, with important implications for preparedness ...
Magen Mhaka‐Mutepfa   +3 more
wiley   +1 more source

Reflexiones en torno a los modelos productivistas y postproductivistas en la Vega de Granada

open access: yesCuadernos Geográficos, 2000
The rural spaces of the developed occidental societies have been passing a number of complex transformations, one of the most distinguishing of whick is transition of its most important function of production of foods.
José Menor
doaj  

Drought reduces the value of both artificial and natural wetlands for gulls breeding in the Mediterranean region

open access: yesJournal of Applied Ecology, Volume 63, Issue 3, March 2026.
The importance of artificial wetlands for waterbird conservation can be easily overestimated from count data alone. The value of extensive fish ponds as a breeding habitat depends on maintaining the availability of natural marshes as a foraging habitat. This requires reducing impacts from groundwater extraction. Given recent abandonment of aquaculture,
Yingjun Wang   +5 more
wiley   +1 more source

Menores abandonados

open access: yes, 1939
Ensayo que plantea algunos de los aspectos del problema del menor abandonado y sugiere la forma como puede actuar la colectividad para conducir a la solución. Señala que entre las clases pobres es donde se manifiestan con más frecuencia los casos de desamparo moral o material de menores.
Carvalho, José A.   +1 more
openaire   +1 more source

RIGHT TO THE CAMPSITE: How Dutch Caravan Dwellers Continue their Struggle for Inclusion

open access: yesInternational Journal of Urban and Regional Research, Volume 50, Issue 2, Page 466-485, March 2026.
Abstract Over the past decade, a growing housing and urban studies literature has engaged with the Lefebvrian concept of the ‘right to the city’. Central to this are rights, laws and grassroots demands. Emerging literature has also focused on the practical side of the right to the city as a set of actions to undo exclusion and dispossession.
Dominic Teodorescu
wiley   +1 more source

Seasonal and Within‐Day Variation on Hummingbirds Visits and Dominance Hierarchy in a Brazilian Cerrado Area

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Plant‐hummingbird interaction networks can be influenced by environmental conditions and resources, which vary seasonally and daily. We aimed to understand how variations in these parameters across these two temporal windows influence patterns of plant‐hummingbird interactions and hummingbirds dominance hierarchies in a Brazilian Cerrado ...
Jeane Lima‐Passos   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy