Results 21 to 30 of about 5,871,797 (300)

N,N-Dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine monohydrate

open access: yesIUCrData, 2018
The asymmetric unit of the title compound, C7H9N5·H2O, consists of two formula units differing slightly in the orientation of the dimethylamino groups. In the crystal, a combination of O—H...N and N—H...O hydrogen bonds involving the water molecules of ...
Mohamed El Hafi   +5 more
doaj   +1 more source

On α′-effects from D-branes in 4d N $$ \mathcal{N} $$ = 1

open access: yesJournal of High Energy Physics, 2020
In this work we study type IIB Calabi-Yau orientifold compactifications in the presence of space-time filling D7-branes and O7-planes. In particular, we conclude that α′2 g s -corrections to their DBI actions lead to a modification of the four ...
Matthias Weissenbacher
doaj   +1 more source

Верификација на квалитативни методи Ñо теÑÑ‚ ленти за иÑпитување на дроги кои Ñе злоупотребуваат во урина [PDF]

open access: yes, 2018
The verification of the  qualitative method with test  devices for detection of eight drugs of abuse in urine  (amphetamines, methamphetamine,  barbiturates,  benzoylecgonine,  marijuana, 3,4-methylendioxy-methamphetamine, methadone, and opiates) was ...
ТопузовÑка (Topuzovska), Соња (Sonja)   +4 more
core   +1 more source

Free area estimation in a partially observed dynamic germ-grain model [PDF]

open access: yes, 2002
The estimation problem of the expected local fraction of free area function S for a partially observed dynamic germ-grain model is presented. Properties of the estimators are proved by martingale and product integral methods.
Marcello De Giosa, Rosa Maria Mininni
core   +2 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

ЛапароÑкопÑка апендектомија кај деца во Република Македонија [PDF]

open access: yes, 2017
Acute appendicitis is very common acute surgical condition in childhood that  requires quick and safe treatment with least possible complications.
Симеонов, РиÑто
core   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

Little strings on D n orbifolds

open access: yesJournal of High Energy Physics, 2017
We explore two classes of 6d N = 1 0 $$ \mathcal{N}=\left(1,0\right) $$ little string theories obtained from type IIA/IIB NS5-branes probing D n singularities.
Joonho Kim, Kimyeong Lee
doaj   +1 more source

ЛабораториÑки Ñтекнати инфекции кај вработените во микробиолошките лаборатории во Република Македонија [PDF]

open access: yes, 2017
Laboratory acquired infections (LAI)  are  all infections obtained during laboratory work, divided into several types, according to the manner of occurrence.
Kakaraskoska Boceska (КакараÑкоÑка БоцеÑка), Biljana (Биљана)
core   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

open access: yesPopulation Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

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