نتایج جستجو برای: BBD
تعداد نتایج: 583 فیلتر نتایج به سال:
A fast optimal algorithm based on the branch and bound (BBD) method is proposed for the joint detection of binary symbols of K users in a synchronous Code-Division Multiple Access (CDMA) channel with Gaussian noise. Relationships between the proposed algorithms (depth-first BBD and fast BBD) and both the decorrelating decision feedback (DF) detector and sphere decoding (SD) algorithm are clearl...
Benign breast disease (BBD) is a risk factor for breast cancer and may have a heritable component. Deficient DNA repair has been implicated in breast cancer etiology and may exert its effect before BBD, a known precursor. The association between allelic variants in DNA repair genes and BBD was examined in a cohort of women in Washington County, Maryland. BBD was defined by two criteria: (a) a p...
BACKGROUND Little generalizable information is available on the outcomes of children diagnosed with bladder and bowel dysfunction (BBD) after a urinary tract infection (UTI). Our objectives were to describe the clinical characteristics of children with BBD and to examine the effects of BBD on patient outcomes in children with and without vesicoureteral reflux (VUR). METHODS We combined data f...
Black band disease (BBD) is a migrating, cyanobacterial dominated, sulfide-rich microbial mat that moves across coral colonies lysing coral tissue. While it is known that BBD sulfate-reducing bacteria contribute to BBD pathogenicity by production of sulfide, additional mechanisms of toxicity may be involved. Using HPLC/MS, the cyanotoxin microcystin was detected in 22 field samples of BBD colle...
Black band disease (BBD) is a pathogenic, sulfide-rich microbial mat dominated by filamentous cyanobacteria that infect corals worldwide. We isolated cyanobacteria from BBD into culture, confirmed their presence in the BBD community by using denaturing gradient gel electrophoresis (DGGE), and demonstrated their ecological significance in terms of physiological sulfide tolerance and photosynthes...
Black band disease (BBD) is a cyanobacterial-dominated polymicrobial mat that propagates on and migrates across coral surfaces, necrotizing coral tissue. Culture-based laboratory studies have investigated cyanobacteria and heterotrophic bacteria isolated from BBD, but the metabolic potential of various BBD microbial community members and interactions between them remain poorly understood. Here ...
BACKGROUND The risk of invasive breast cancer associated with benign breast disease (BBD) other than atypical hyperplasia and in situ breast cancer, especially with nonproliferative diagnosis, has not been explored extensively. This report evaluates the risk of breast cancer associated with this lower-category BBD (LC-BBD). METHODS 11 307 women without prior history of atypical hyperplasia or...
Babao Dan (BBD), a traditional Chinese medicine, has been widely used as a complementary and alternative medicine to treat chronic liver diseases. In this study, we aimed to observe the protective effect of BBD on rat hepatic fibrosis induced by diethylnitrosamine (DEN) and explore it possible mechanism. BBD was administrated while DEN was given. After eight weeks, values of serum alanine amino...
PURPOSE Benign breast disease (BBD) in women encompasses a broad spectrum of histopathologic lesions. Studies on BBD have focused on the risks for subsequent breast cancer associated with three broad categories of lesions, classified as nonproliferative, proliferative, or proliferative with atypia, without addressing the issue of the contribution of concurrent multiple BBD lesions. There is ver...
We introduce a new divergence measure, the bounded Bhattacharyya distance (BBD), for quantifying the dissimilarity between probability distributions. BBD is based on the Bhattacharyya coefficient (fidelity) , and is symmetric, positive semi-definite, and bounded. Unlike the Kullback-Leibler divergence, BBD does not require probability density functions to be absolutely continuous with respect t...
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