نتایج جستجو برای: mps mean patch size

تعداد نتایج: 1134880  

2017
Yuanheng Li Ulrich Brose Katrin Meyer Björn C. Rall

Knowledge on how functional responses (a measurement of feeding interaction strength) are affected by patch size and habitat complexity (represented by refuge availability) is crucial for understanding food-web stability and subsequently biodiversity. Due to their laborious character, it is almost impossible to carry out systematic empirical experiments on functional responses across wide gradi...

2014
B. B. Khare Habib Ur Rehman Kamlesh Kumar

Generalized chain ratio regression and chain regression estimators for the population mean using two auxiliary characters have been proposed in the presence of non-response. The expressions for the mean square error (MSE) of these estimators have been obtained for fixed sample sizes ( n′ and n ) and also for fixed cost 0 C C ≤ .The optimum values of the first phase sample size n′ and the sub sa...

2015
Elin Trägårdh Michael Ljungberg Lars Edenbrandt Eva Örndahl Lena Johansson Agneta Gustafsson Cathrine Jonsson Jessica Hagerman Katrine Riklund David Minarik

BACKGROUND Myocardial perfusion scintigraphy (MPS) is a clinically useful noninvasive imaging modality for diagnosing patients with suspected coronary artery disease. By utilizing gated MPS, the end diastolic volume (EDV) and end systolic volume (ESV) can be measured and the ejection fraction (EF) calculated, which gives incremental prognostic value compared with assessment of perfusion only. T...

خلیل‌آبادی, سمیه, سفیانیان, علیرضا, متین‌خواه, سیدحمید, همامی, محمودرضا, کابلی, محمد,

  Determining landscape parameters influencing species richness of habitat patches is one of the most important issues in conservation biology. Many previous studies have investigated the influence of habitat parameters on bird assemblages in forest patches, but studies seeking effects of oasis parameters on bird assemblages are very scarce. Karkas Protected Area is located in semi-arid zone in...

2011
Elin Trägårdh Karl Sjöstrand David Jakobsson Lars Edenbrandt

BACKGROUND The American Society of Nuclear Cardiology and the Society of Nuclear Medicine state that incorporation of attenuation-corrected (AC) images in myocardial perfusion scintigraphy (MPS) will improve image quality, interpretive certainty, and diagnostic accuracy. However, commonly used software packages for MPS usually include normal stress databases for non-attenuation corrected (NC) i...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2010
T H Johnson S R Clark D Jaksch

We adapt the time-evolving block decimation (TEBD) algorithm, originally devised to simulate the dynamics of one-dimensional quantum systems, to simulate the time evolution of nonequilibrium stochastic systems. We describe this method in detail; a system's probability distribution is represented by a matrix product state (MPS) of finite dimension and then its time evolution is efficiently simul...

Journal: :Diversity 2022

There are many local fragmentation metrics, but most can be grouped into four types (composition/area, isolation, edge, and shape), none of them alone determines the degree a patch. Here, we together main metrics (area, shape, isolation) in order to propose new metric/index, Patch Fragmentation Index (PFI), with which determine at patch scale. The index was subsequently verified Ecuadorian seas...

Journal: :archives of medical laboratory sciences 0
mohamad ali esmaili zohreh sharifi fatemeh yari

background: activated platelets shed microparticles (mps) in vivo and certainly in vitro under storage. like platelets, platelet-derived mps contribute to hemostatic and inflammatory responses. we sought to determine the interactions between platelet mps and peripheral b lymphocytes in the healthy blood circulation to propose a possible role for platelet mps in the functioning of b cells.   mat...

Journal: :Environmental Research 2021

Considering the omnipresence of microplastics (MPs) in aquatic environments, they are expected to exert significatn impacts as carriers for diverse waterborne pollutants. In this work, adsorptive behavior two ionic components (i.e., sodium dodecyl benzene sulfonate (SDBS) and Cr(VI)) has been explored against types MPs model adsorbents, namely poly (ethylene terephthalate) (PET) polystyrene (PS...

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