نتایج جستجو برای: 4721
تعداد نتایج: 65 فیلتر نتایج به سال:
Abstract. Field boundaries are at the core of many agricultural applications and a key enabler for operational monitoring production to support food security. Recent scientific progress in deep learning methods has highlighted capacity extract field from satellite aerial images with clear improvement object-based image analysis (e.g. multiresolution segmentation) or conventional filters Sobel f...
BACKGROUND Globally, most patients with hypertension are treated with monotherapy, and control rates are poor because monotherapy only reduces blood pressure by around 9/5 mm Hg on average. There is a pressing need for blood pressure-control strategies with improved efficacy and tolerability. We aimed to assess whether ultra-low-dose combination therapy could meet these needs. METHODS We did ...
تولید گیاهان دارویی می تواند تحت تاثیر ژنوتیپ و عوامل محیطی مانند محدودیت آب قرار گیرد. بر همین اساس، یک آزمایش دو ساله مزرعه ای برای ارزیابی واکنش توده های بومی رازیانه به محدودیت آب طی سال های 1390- 1389 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه تبریز اجرا گردید. آزمایش ها در قالب طرح کرت های خرد شده بر پایه بلوک های کامل تصادفی در سه تکرار پیاده شد که در آن سطوح آبیاری (آبیاری بعد از 60، 90،...
در این تحقیق تلاش شده است تا روابط حقوقی زوجین در دو کشور مسلمان ایران وترکیه با توجه به تغییرات جدیدی که در قوانین دو کشور نسبت به این موضوع شده است بررسی شوداین تحقیق علاوه بر فصل اول وفصل آخر که به ترتیب کلیات و نتیجه گیری می باشد ،در فصل دوم حقوق ایران را در زمینه روابط حقوقی زوجین مورد بررسی قرار می دهد،درفصل سوم نیز حقوق ترکیه رامورد بررسی قرار می دهد ،ودر فصل چهارم به مقایسه حقوق ایران و...
Background: Biosimilar products of biological disease-modifying antirheumatic drugs (bDMARDs) entered the Swedish market in 2015, with regulatory approvals based on head to trials limited duration. Longer-term comparative drug survival, clinical practice, remains less well documented. Objectives: To compare survival between biosimilars and their originator among first starters etanercept, infli...
Metal nanowires exhibit a number of interesting properties: their electrical conductance is quantized, their shot-noise is suppressed by the Pauli principle, and they are remarkably strong and stable. We show that many of these properties can be understood quantitatively using a nanoscale generalization of the free-electron model. Possible technological applications of nanowires are also discus...
Stretchcam is a thin camera with a lens capable of zooming with small actuations. In our design, an elastic lens array is placed on top of a sparse, rigid array of pixels. This lens array is then stretched using a small mechanical motion in order to change the field of view of the system. We present in this paper the characterization of such a system and simulations which demonstrate the capabi...
Detasseling is the operation that consists of removing the tassels of the female plants prior to silk emergence CERES-Maize, which was designed for simulation of hybrid maize and pollen shed to prevent self-pollination. During this (Zea mays L.), cannot be applied directly to seed-producing inbred maize because of specific field operations and physiological traits of operation, several leaves a...
Antimitotic natural products that bind to cellular microtubules can be used as anticancer agents, and we are studying the cellular mechanisms of these compounds.1 The fungal metabolite phomopsin A is a key structure in these studies, and we are currently pursuing its synthesis.2 Our retrosynthetic analysis of phomopsin A targeted the chiral tertiary alkyl-aryl ether as a key disconnection withi...
Lobular carcinoma in situ (LCIS) and atypical lobular hyperplasia (ALH) of the breast are cytologically similar breast lesions that reportedly carry different relative risks of subsequent development of invasive car cinoma. They are frequently multifocal and bilateral. We have identified the chromosomal copy number changes in 31 LCIS and 14 ALH lesions from 28 cases and also the 7 invasive carc...
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