Results 31 to 40 of about 7,038,490 (299)

Methods for Monitoring for the Population Consequences of Disturbance in Marine Mammals: A Review

open access: yesFrontiers in Marine Science, 2020
Assessing the non-lethal effects of disturbance and their population-level consequences is a significant ecological and conservation challenge, because it requires extensive baseline knowledge of behavioral patterns, life-history and demography. However,
Cormac G. Booth   +3 more
doaj   +1 more source

Genetic variability of maize breeding material - Zea mays L [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2004
A study has been conducted in order to assess genetic variability in three maize populations, which are part of breeding material of Institute of Field and Vegetable Crops in Novi Sad. Variability has been analyzed for seven enzymes.
Nikolić Zorica T.   +3 more
doaj   +1 more source

Stochastic delocalization of finite populations

open access: yes, 2012
Heterogeneities in environmental conditions often induce corresponding heterogeneities in the distribution of species. In the extreme case of a localized patch of increased growth rates, reproducing populations can become strongly concentrated at the ...
Kimura M   +8 more
core   +1 more source

AGB populations in post-starburst galaxies [PDF]

open access: yes, 2014
In a previous paper we compared the SEDs of a sample of 808 K+A galaxies from the FUV to the MIR to the predictions of the spectrum synthesis models explicitly using AGB components. Here we use the new AGB-light models from C.
De Propris, Roberto, Melnick, Jorge
core   +1 more source

Understanding Populism

open access: yesSocial & Legal Studies, 2023
The diversity of features attributed to populism - and, as a result, the variety of critiques leveled at it - are remarkable. It sometimes seems as though people are using the same terms to address very different phenomena. Is there any distinctive meaning to populism?
openaire   +2 more sources

Conhological parameters of populations of terrestrial snails (Cepea hortensis, Helix pomatia) in the urboecosystem of Chervonograd city

open access: yesБіологічні студії, 2011
The variability of morphological and conchological parameters of terrestrial snails (Cepea hortensis, Helix pomatia) which inhabit the areas with different degree of anthropological transformation is analyzed.
K. Rybka
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Chemical variability of common skullcap (Scutellaria galericulata L.) wild growing in the area of eastern Poland

open access: yesHerba Polonica, 2016
Introduction. In the group of plants revealing adaptogenic activity, species belonging to Scutellaria genus are considered to be the most important ones. Common skullcap (Scutellaria galericulata L.) is less known species from this genus, growing wild in
Kosakowska Olga   +4 more
doaj   +1 more source

Effect of climate changes on the habitat of rare arctic-alpine plant species in high mountain part of the Ukrainian Carpathians

open access: yesБіологічні студії, 2018
8 types of habitats to which rare arctic-alpine plant species are confined were determined in the high mountain part of the Ukrainian Carpathians. The environmental conditions in the alpine heaths are transformed due to climate changes.
R. M. Cherepanyn
doaj   +1 more source

Diverse portfolios: Investing in tributaries for restoration of large river fishes in the Anthropocene

open access: yesFrontiers in Environmental Science, 2023
Rehabilitation of large Anthropocene rivers requires engagement of diverse stakeholders across a broad range of sociopolitical boundaries. Competing objectives often constrain options for ecological restoration of large rivers whereas fewer competing ...
Kristen L. Bouska   +5 more
doaj   +1 more source

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