نتایج جستجو برای: 2002 in total

تعداد نتایج: 17048231  

In this study population dynamic of Acipenser persicus with age structure model by Monte Carlo and Bootstrap approach was studied. Length frequency data a total of 4376 specimens collected from beach seine, fixed gill net and conservation force in coastal Guilan province during 2002 to 2012. Data imported to FiSAT II for length frequency analyze by ELEFAN 1. K, L∞ and t0 estimated 203, 0.08 and...

Journal: :acta medica iranica 0
farnaz sohrabvand department of infertility, reproductive health research center, vali-e-asr hospital, tehran university of medical sciences, tehran, iran. mamak shariat maternal-fetal & neonatal research center, tehran university of medical sciences, tehran, iran. navid fotoohi ghiam tehran university of medical sciences, tehran, iran. mahdi hashemi tehran university of medical sciences, tehran, iran.

cumulative embryo score (ces) is one of the many embryo scoring methods which have been developed to help clinicians to transfer high quality embryos and predict pregnancy rate in assisted reproductive techniques (art) cycles. regarding the existing difference in ces calculation this study was done to compare two methods in order to determine the more practical and preferable one. in a retrospe...

Journal: :Disasters 2009
Kambod Amini Hosseini Mohammad Kazem Jafari Maziar Hosseini Babak Mansouri Solmaz Hosseinioon

This paper presents the results of research carried out to improve emergency response activities in earthquake-prone areas of Iran. The research concentrated on emergency response operations, emergency medical care, emergency transportation, and evacuation-the most important issues after an earthquake with regard to saving the lives of victims. For each topic, some guidelines and criteria are p...

2014
E. Descrovi A. Angelini E. Barakat S. Ricciardi F. Frascella P. Rivolo N. De Leo P. Munzert L. Boarino H. P. Herzig F. Giorgis

a Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Torino, 10129, Italy b NanoFacility Piemonte, Istituto Nazionale di Ricerca Metrologica (INRIM), 10135, Torino. c Optics & Photonics Technology Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL), rue de la Maladière 71b, Neuchâtel CH-2002, Switzerland. d Fraunhofer Institute for Applied Optics and Precision Engine...

2006
ONNO VAN GAANS JAN VAN NEERVEN

We investigate existence and permanence properties of invariant measures for abstract stochastic Cauchy problems of the form dU(t) = (AU(t) + f) dt+B dWH(t), t > 0, governed by the generator A of an asymptotically unstable C0-semigroup on a Banach space E. Here f ∈ E is fixed, WH is a cylindrical Brownian motion over a separable real Hilbert space H, and B : H → E is a bounded operator. We show...

2008
Mircea-Dan Hernest

In view of an enhancement of our implementation on the computer, we explore the possibility of an algorithmic optimization of the various proof-theoretic techniques employed by Kohlenbach for the synthesis of new (and better) effective uniform bounds out of established qualitative proofs in Numerical Functional Analysis. Concretely, we prove that the method (developed by the author in his thesi...

2012
MEHMET KARAKAŞ

Development of the sugar beet cyst nematode, Heterodera schachtii, was studied in growth chambers at 20, 25, 29, 32 and 35 ± 1 oC on Beta vulgaris cv. Saccharifera. The optimum temperature for reproduction appeared to be 32 oC, at which the life cycle, from second-stage juvenile (J2) to J2, was completed in 16-19 days; at 35 oC, 20-21 days were required. Juveniles emerged from eggs within 29 da...

Journal: :Molecular ecology 2003
Jonathan D S Witt Dean W Blinn Paul D N Hebert

Numerous molecular studies have identified morphologically cryptic, freshwater invertebrate species, but have not suggested possible mechanisms for their phenotypic stasis. The amphipod crustacean genus Hyalella contains numerous morphologically cryptic species in the H. azteca complex, as well as a small number of morphologically very divergent, narrowly endemic taxa. One such taxon, Hyalella ...

Journal: :Journal of experimental child psychology 1985
B R Stephens M S Banks

The mature visual system possesses mechanisms that enable invariant perception of the contrast of an object and its features as the object undergoes changes in distance. This phenomenon, which has been called contrast constancy, obtains at suprathreshold contrasts only. Some models of contrast constancy assume the presence of narrowband spatial-frequency channels. An implication of M.S. Banks, ...

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