Consider laying out a fixed-topology tree of N nodes into external memory with block size B so as to minimize the worst-case number of block memory transfers required to traverse a path from the root to a node of depth D. We prove that the optimal number of memory transfers is Θ   D lg(1+B) when D = O(lgN) lgN lg ( 1+ lg N D ) when D = Ω(lgN) and D = O(B lgN) D B when D ...

Çal??man?n amac?, 2015-2020 y?llar? aras?nda Türkçe alanyaz?nda yap?lm?? olan bilgi i?lemsel dü?ünme konulu ara?t?rmalar?n y?l, konu alan?, çal??ma türü, kullan?lan yöntem, veri toplama arac?, analiz yöntemi, örneklem özellikleri, sonuç ve öneriler de?i?kenlerine göre da??l?mlar?n?n incelenmesidir. Bilgi konusunda çal??malara ula?mak için TR Dizin Ulusal Tez Merkezi taban? taranm??t?r. Bu taban...

b-lactoglobulin (b-lg), the main whey protein fraction in bovine milk is a major allergen causing cow’s milk allergy. Immunological investigations of b-lg have reported several IgE-binding regions of the protein that were linked with allergic reaction. Most IgE epitopes are specific for surface features of the protein. However, no clear association of structural feature or function with allerge...

One popular approach to prepare graphene is to grow them on transition metal substrates via chemical vapor deposition. By using the density functional theory with dispersion correction, we systematically investigate for the first time the interfacial properties of bilayer (BLG) and trilayer graphene (TLG) on metal substrates. Three categories of interfacial structures are revealed. The adsorpti...

AIMS To investigate the effect of LG100268 (LG268) on cell proliferation and apoptosis in NB4 cells. METHODS NB4 cells were treated with LG268 for 24 h or 48 h. The effect of LG268 on cell proliferation was assessed by the CCK-8 assay and colony-forming assay. Apoptosis and cell cycle were evaluated by flow cytometry. The protein expression levels of Survivin, PARP, c-Myc, cyclin D1, ERK, p-E...

the objective of this study was to determine the polymorphism of bovine β-lactoglobulin (β-lg) gene and its association with milk production traits in iranian najdi cattle. blood samples were collected from 80 najdi cattle from the najdi cattle breeding station located in shoshtar, khuzestan. polymerase chain reaction (pcr) and restriction fragment length polymorphism (rflp) techniqus were used...

A novel type of pH-responsive biodegradable copolymer was developed based on methyloxy-poly(ethylene glycol)-block-poly[dopamine-2-(dibutylamino) ethylamine-l-glutamate] (mPEG-b-P(DPA-DE)LG) and applied to act as an intelligent nanocarrier system for magnetic resonance imaging (MRI). The mPEG-b-P(DPA-DE)LG copolymer was synthesized by a typical ring opening polymerization of N-carboxyanhydrides...

In this paper, the illumination problem of face recognition is investigated. A conclusion is drawn that the logarithm vertical gradient (LVG) of face images is more robust to varying lighting than the logarithm horizontal gradient (LHG). When the variation of illumination is large, LVG will be a better representation of the face image than logarithm gradient (LG). Although both LVG and LHG can ...

Interleukin-6 (IL-6) stimulates growth and immunoglobulin (lg) secretion in Epstein-Barr virus (EBV)-infected B cells. In this study, we demonstrate that B-cell activation by IL-6 is associated with an initial induction of c-myc, a gene believed to act as a competence factor for increased RNA transcription and DNA replication, and by increases in DNA, RNA, and protein synthesis, as well as cell...