نتایج جستجو برای: شبکه بیزین bn
تعداد نتایج: 44002 فیلتر نتایج به سال:
Bulimia nervosa (BN) is characterized by symptoms of binge eating and compensatory behavior, and overevaluation of weight and shape, which often co-occur with symptoms of anxiety and depression. However, there is little research identifying which specific BN symptoms maintain BN psychopathology and how they are associated with symptoms of depression and anxiety. Network analyses represent an em...
Two-dimensional (2D) hexagonal boron nitride (h-BN), which has a similar honeycomb lattice structure to graphene, is promising as a dielectric material for a wide variety of potential applications based on 2D materials. Synthesis of high-quality, large-size and single-crystalline h-BN domains is of vital importance for fundamental research as well as practical applications. In this work, we rep...
In this paper a new incremental algorithm for computing nconcepts is proposed. The time complexity of the algorithm is O(|I| · In · |Bn|), where |I| is the size of a context (an n-ary relation), In = |K1||Bn−1| is the input, where K1 is a set corresponding to an added dimension and Bn−1 is the set of (n− 1)-concepts. The output Bn of the algorithm is a set of n-concepts. The algorithm creates n...
The notions of an ideal and a fuzzy ideal in BN-algebras are introduced. The properties and characterizations of them are investigated. The concepts of normal ideals and normal congruences of a BN-algebra are also studied, the properties of them are displayed, and a one-to-one correspondence between them is presented. Conditions for a fuzzy set to be a fuzzy ideal are given. The relationships b...
Chung, Diaconis, and Graham considered random processes of the form Xn+1 = anXn + bn (mod p) where p is odd, X0 = 0, an = 2 always, and bn are i.i.d. for n = 0, 1, 2, . . .. In this paper, we show that if P (bn = −1) = P (bn = 0) = P (bn = 1) = 1/3, then there exists a constant c > 1 such that c log2 p steps are not enough to make Xn get close to uniformly distributed on the integers mod p.
We demonstrate that boron nitride (BN) nanotubes can be filled "peapod" fashion with C60 molecules. Filling small-diameter BN nanotubes results in a linear chain of C60 molecules in the interior, while filling large diameter BN nanotubes leads to nanorods of crystalline C60 in the interior. Electron beam damage can be used to fuse the encapsulated C60 molecules into carbon nanotubes, leading to...
In this note we solve the twisted conjugacy problem for braid groups, i.e. we propose an algorithm which, given two braids u, v ∈ Bn and an automorphism φ ∈ Aut(Bn), decides whether v = (φ(x))−1ux for some x ∈ Bn. As a corollary, we deduce that each group of the form Bn o H, a semidirect product of the braid group Bn by a torsion-free hyperbolic group H, has solvable conjugacy problem.
از مهمترین متغیرهای کلیدی اقتصاد در تنظیم و اعمال سیاستهای اقتصادی سیاست پولی نرخ بهره است که در دهههای اخیر تلاشهای وافری در جهت تنظیم آن انجام گرفته و کاهش دادن آن به سطح مطلوب به عنوان یک اولویت مطرح شده است. در حقیقت دلیل این امر، تأثیر قابل توجه این متغیر در حل و یا ایجاد مشکلات و نابسامانیهای اقتصادی موجود در برخی جوامع بوده است. در این راستا، در این تحقیق، پس از تعیین اثرگذارترین مت...
Fluorination of BN nanotubes has been performed using a catalytic growth method, which leads to the appearance of markedly curved fluorine-doped BN sheets and converts originally insulating BN nanotubes to semiconductors, as confirmed by the comparative electron transport four-probe measurements on doped and undoped individual BN nanotubes.
Self-report studies suggest that patients with bulimia nervosa (BN) evidence difficulties with interoceptive awareness. Indeed, interoceptive deficits may persist after recovery of BN and may be a biological trait that predisposes symptom development in BN. However, no studies to date have directly assessed interoceptive sensitivity, or accuracy in detecting and perceiving internal body cues, i...
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