Introduction: Paediatric patients deserve special attention because of the higher radiation risks compared with adults. The main purpose of this study is to determine patient dose and diagnostic reference level for Paediatric through Entrance Surface Dose (ESD) calculations in common X-ray examination and to establish Paediatric national DRLs in digital radiography in Iran. <...

background: increasing worldwide contamination with hydrocarbons has urged environmental remediation using biological agents such as bacteria. our goal here was to study the phylogenetic relationship of two crude oil degrader bacteria and investigation of their ability to degrade hydrocarbons. materials and methods: phylogenetic relationship of isolates was determined using morphological and bi...

conclusions although the data support the idea that the basic mechanism of imipenem resistance could be via the loss of oprd, they do not fully explain the role of oprd and indicate that other mechanisms may play an important role. additionally, the significant decrease in the oprd levels in mdr strains suggests that oprd also plays a role in the emergence of both carbapenem and non-carbapenem ...

In this paper, we analyze the limiting behavior of the weighted least squares problem minx∈<n Pp i=1 kDi(Aix − bi)k2, where each Di is a positive definite diagonal matrix. We consider the situation where the magnitude of the weights are drastically different block-wisely so that max(D1) ≥ min(D1) À max(D2) ≥ min(D2) À max(D3) ≥ . . . À max(Dp−1) ≥ min(Dp−1)À max(Dp). Here max(·) and min(·) repr...

conclusions ap did not prevent utis and resulted in more resistant organisms requiring iv antibiotics. discontinuing ap allowed the return of susceptibility to oral antimicrobials and significantly improved gfr in those children who had previously been on ap. adherence to a catheterization regimen with prompt treatment of symptomatic uti conserved renal function and prevented selection of resis...

Abstract In this paper, we investigate the uplink transmission for user-centric cell-free massive multiple-input multiple-output (MIMO) systems. The largest-large-scale-fading-based access point (AP) selection method is adopted to achieve a operation. Under framework, propose novel inter-cluster interference-based (IC-IB) pilot assignment scheme alleviate contamination. Considering local charac...

This paper studies a mobile edge computing (MEC) system in which two mobile devices are energized by the wireless power transfer (WPT) from an access point (AP) and they can offload part or all of their computation-intensive latency-critical tasks to the AP connected with an MEC server or an edge cloud. This harvest-then-offload protocol operates in an optimized timedivision manner. To overcome...

The problem of ranking a set of visual samples according to their relevance to a query plays an important role in computer vision. The traditional approach for ranking is to train a binary classifier such as a support vector machine (svm). Binary classifiers suffer from two main deficiencies: (i) they do not optimize a ranking-based loss function, for example, the average precision (ap) loss; a...

Introdouction: The high prevalence of apical periodontitis (AP) of endodontic origin raises an important public health problem. Root canal treatment (RCT) and crown restoration (CR) have an effect on its prevalence. This cross-sectional study was performed to assess the effect of RCT and CR on the prevalence of AP. Materials and methods: Two observers assessed 608 teeth with RCT belonging to p...