Results 71 to 80 of about 55,893 (261)

Demographic Effects of Seedling Reintroduction on the Viability of a Vulnerable Columnar Cactus of the Chihuahuan Desert

open access: yesPopulation Ecology, Volume 68, Issue 1, January 2026.
This study assessed the impact of seedling reintroduction and protection on the vulnerable cactus Cephalocereus polylophus using a 5‐year dataset and integral projection models. Results showed that although seedling protection increased survival and population size slightly, the overall growth rate remained below one due to limited recruitment and ...
Gabriel Arroyo‐Cosultchi   +3 more
wiley   +1 more source

Semi-Analytic Galaxy Evolution (SAGE): Model Calibration and Basic Results

open access: yes, 2016
This paper describes a new publicly available codebase for modelling galaxy formation in a cosmological context, the "Semi-Analytic Galaxy Evolution" model, or SAGE for short. SAGE is a significant update to that used in Croton et al. (2006) and has been
Bernyk, Maksym   +9 more
core   +3 more sources

Void Statistics and Hierarchical Scaling in the Halo Model [PDF]

open access: yes, 2013
We study scaling behaviour of statistics of voids in the context of the halo model of nonlinear large-scale structure. The halo model allows us to understand why the observed galaxy void probability obeys hierarchical scaling, even though the premise ...
Colombi, S., Fry, J. N.
core   +2 more sources

A Modular Chemoenzymatic Cascade Simplifies Divergent Synthesis of Natural and Unnatural Benzylisoquinoline Alkaloids

open access: yesAdvanced Science, Volume 13, Issue 1, 5 January 2026.
A simplified chemoenzymatic platform is designed to integrate an enzyme cascade with subsequent chemical steps, enabling the divergent production of diverse benzylisoquinoline alkaloids (BIAs). Demonstrating remarkable versatility and enantioselectivity, four distinct classes of BIAs are efficiently generated, in which the natural medicine papaverine ...
Huiling Liu   +8 more
wiley   +1 more source

A Relationship between Supermassive Black Hole Mass and the Total Gravitational Mass of the Host Galaxy

open access: yes, 2009
We investigate the correlation between the mass of a central supermassive black hole and the total gravitational mass of the host galaxy (M_tot). The results are based on 43 galaxy-scale strong gravitational lenses from the Sloan Lens ACS (SLACS) Survey ...
Adams   +48 more
core   +1 more source

For your eyes too: a new set of images of biological materials from the scientific commissioning of the MOGNO beamline at Sirius

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 1, Page 170-180, January 2026.
From whole specimens to histological level reconstructions, images derived from 3D synchrotron‐based microtomography (SR‐microCT) have emerged as a tool that is revolutionizing a wide range of biological research. This paper presents the first commissioning results from experiments to image the anatomy of small animals and specimens from zooarchaeology
Marcos Vinicius Colaço   +13 more
wiley   +1 more source

Evolution in the black hole mass-bulge mass relation: a theoretical perspective

open access: yes, 2005
We explore the growth of super-massive black holes and host galaxy bulges in the galaxy population using the Millennium Run LCDM simulation coupled with a model of galaxy formation.
Adelberger   +31 more
core   +1 more source

Burrow Selection by Temminck's Ground Pangolins (Smutsia temminckii) in Northern Botswana

open access: yesAfrican Journal of Ecology, Volume 64, Issue 1, January 2026.
ABSTRACT In arid and semi‐arid environments, many species use underground burrows for thermoregulation, reproduction, and to reduce predation risk. In Botswana, Temminck's ground pangolins (Smutsia temminckii) shelter in burrows during the day, and burrow density is thought to be a key indicator of habitat suitability for these animals.
Mokwaledi Mafa   +4 more
wiley   +1 more source

Effect of stalk and leaf extracts from Euphorbiaceae species on Aedes aegypti (Diptera, Culicidae) larvae Efeito dos extratos de caule e folha de espécies de Euphorbiaceae sobre larvas de Aedes aegypti (Diptera, Culicidae)

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 2006
The objective of this study was to evaluate the larvicidal activity of essential oil aqueous solutions (hydrolates) obtained by steam distillation of stalks and leaves of Croton argyrophylloides, Croton nepetaefolius, Croton sonderianus and Croton ...
Maria Goretti Araújo de Lima   +4 more
doaj   +1 more source

Dark-ages Reionization and Galaxy Formation Simulation - X. The small contribution of quasars to reionization

open access: yes, 2017
Motivated by recent measurements of the number density of faint AGN at high redshift, we investigate the contribution of quasars to reionization by tracking the growth of central supermassive black holes in an update of the Meraxes semi-analytic model ...
Angel, Paul W.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy