Results 61 to 70 of about 277,351 (274)

Twenty years of dynamic occupancy models: a review of applications and look to the future

open access: yesEcography, EarlyView.
Since their introduction over 20 years ago, dynamic occupancy models (DOMs) have become a powerful and flexible framework for estimating species occupancy across space and time while accounting for imperfect detection. As their popularity has increased and extensions have further expanded their capabilities, DOMs have been applied to increasingly ...
Saoirse Kelleher   +3 more
wiley   +1 more source

Time in the theory of relativity: on natural clocks, proper time, the clock hypothesis, and all that [PDF]

open access: yes, 2017
When addressing the notion of proper time in the theory of relativity, it is usually taken for granted that the time read by an accelerated clock is given by the Minkowski proper time.
Valente, Mario Bacelar
core  

Fricke and polymer gel 2D dosimetry validation using Monte Carlo simulation [PDF]

open access: yes, 2016
Complexity in modern radiotherapy treatments demands advanced dosimetry systems for quality control. These systems must have several characteristics, such as high spatial resolution, tissue equivalence, three-dimensional resolution, and dose-integrating ...
Chacón Obando, D.   +12 more
core   +1 more source

Quantifying the unrecorded loss of avian phylogenetic diversity

open access: yesEcography, EarlyView.
Humans have drastically reduced avian diversity, with the majority of extinctions occurring on islands. Previous studies have quantified various aspects of this decline, including both taxonomic and phylogenetic diversity loss due to recorded extinctions.
Søren Faurby   +3 more
wiley   +1 more source

The renormalization of charge and temporality in quantum electrodynamics [PDF]

open access: yes, 2008
In this article it is intended a closer look at the renormalization procedure used in quantum electrodynamics to cope with the divergent integrals that appear in higher-order calculations within the theory.
Bacelar Valente, Mario
core  

City Slicker or Country Bumpkin?—Distinguishing Urban and Rural Residents From Subtle Facial Cues

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Stereotypes characterize urban and rural residents as differing in traits, values and social outcomes. Here, we examined how people's stereotypes about urban and rural residents differ, testing their validity using a lens model. Results showed that participants detected whether people resided in urban or rural areas from photos across three ...
McLean G. Morgan   +2 more
wiley   +1 more source

Low-Valent Ferrocenes

open access: yes, 2020
Here, we report the first isolable low-valent biscyclopentadienyl iron complexes stabilized by NHC-functionalized ligands (NHC-Cps), which were characterized by electron paramagnetic resonance (EPR) and 57 Fe Mössbauer spectroscopy.
Hayoung Song   +5 more
openaire   +1 more source

Influence network linkages across implementation strategy conditions in a randomized controlled trial of two strategies for scaling up evidence-based practices in public youth-serving systems. [PDF]

open access: yes, 2013
BackgroundGiven the importance of influence networks in the implementation of evidence-based practices and interventions, it is unclear whether such networks continue to operate as sources of information and advice when they are segmented and disrupted ...
Brown, C Hendricks   +5 more
core   +1 more source

Estudo da prevalência da resistência aos antibacilares

open access: yesRevista Portuguesa de Pneumologia, 1996
Resumo: Em Portugal a incidência da Tuberculose mantém·se elevada. Por outro lado, a frequência com que a Tuberculose se desnvolve em doentes co-infectadas, com VIH (vírus da imunodeficiência humana e Mycobacterium tuberculosis tem aumeotado, sobretudo ...
Berta Mendes   +10 more
doaj   +1 more source

Las Cántigas de alén de José Ángel Valente: tradición y ruptura de la poesía gallega [PDF]

open access: yes
José Ángel Valente sólo publicó un libro en gallego, Cántigas de alén. En este artículo planteamos un estudio de literatura comparada entre esta obra de Valente en gallego y su producción en castellano, así como la relación con otros autores, en torno al
Martínez-falero, Luis
core   +1 more source

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