نتایج جستجو برای: 1312

تعداد نتایج: 545  

Journal: :Calculus of Variations and Partial Differential Equations 2022

We introduce a new class of discrete conformal structures on surfaces with boundary, which have nice interpretations in 3-dimensional hyperbolic geometry. Then we prove the global rigidity using variational principles, is complement Guo–Luo’s Guo and Luo (Geom Topol 13(3):1265–1312, 2009) Guo’s vertex scaling (Commun Contemp Math 13(5):827–842, 2011) boundary. As byproduct, results convexity vo...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم انسانی 1391

در تنظیم قرارداد دارسی پنج ایالت شمالی ایران از حوضه این امتیاز نفتی مستثنی شده بود. در سال های 1299 ش تا 1303 ش بر سر بهره برداری از این منابع میان شرکت های امریکایی و شرکت نفت ایران و انگلیس رقابتی به وجود آمد. در زمان مجلس سوم دو شرکت امریکایی موفق به کسب این امتیاز شد اما با مخالفت شوروی و کارشکنی انگلستان و البته نبود مزیت اقتصادی از ادامه کار منصرف شد. بعدها با تجدید قرارداد دارسی فرصت دو...

2015
IOANA STANCIU

This paper presets the study of the rheological characteristics of the concentrated polyethylene-polypropylene copolymer solutions over the temperature range of 313-363 K and for shear rates between 3 and 1312 s-1. The measurements were performed on a Haake VT 550 rotational rheometer with a HV1 sensor. The rheology of the concentrated solutions is influenced by the shear rate, temperature and ...

Journal: :Irish medical journal 2015
S Dowling H Finnegan C Collins

In Ireland, Continuing Medical Education (CME) for GPs is delivered by a national network of 37 tutors who coordinate learning sessions for between 2 and 5 small groups of physicians (SGL). Each group meets up to 8 times per year; 1100 to 1700 doctors attend CME-SGL nationally each month, with numbers increased since the Irish Medical Practitioners Act. This study investigated whether CME-SGL i...

Journal: :Genetics and molecular research : GMR 2013
L N Sun H S Yang M Y Chen D X Xu

Many developmental genes play important roles in regeneration. Here, we cloned the two developmental genes, Wnt6 and Hox6, from Apostichopus japonicus by rapid amplification of cDNA ends (RACE) polymerase chain reaction (PCR). The Wnt6 full-length cDNA is 1140 bp long with a 1029-bp open reading frame encoding 342 amino acids. The deduced Wnt6 protein contained a 22-amino acid signal peptide an...

2005
Robert N. Weinreb Mark I. Ryder Jon R. Polansky

The effects of cytochalasin B (10~ M and 1 0 s M), taxol (10" M), nocodozole (10~ M), and colchicine (10~ M) on the cytoskeleton of cynomolgus monkey trabecular cells were examined with Nomarski observations, fluorescent labeling as well as extraction, S-l labeling, and critical-point drying. Changes in actin, microtubules, and intermediate filaments, the three major cytoskeletal systems, were ...

Journal: :J. Economic Theory 2005
Ángel Hernando-Veciana

We analyse a multistage game of competition among auctioneers. First, the auctioneers commit to some reserve prices; second, the bidders enter one auction, if any; and finally, the auctions take place. We show that for any finite set of feasible reserve prices, each auctioneer announces a reserve price equal to his production cost if the numbers of auctioneers and bidders are sufficiently large...

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