Healthcare-Associated Pneumonia Does Not Accurately Identify Potentially Resistant Pathogens: A Systematic Review and Meta-analysis
submitted by TrisSpe 36 minutes ago
A systematic evaluation of studies into healthcare-associated pneumonia (HCAP) indicates this concept does not accurately identify resistant pathogens, with evidence of publication bias and poor study quality. Mortality in HCAP patients is primarily due to comorbidities and not resistant pathogens.
Rosuvastatin Treatment Reduces Markers of Monocyte Activation in HIV-Infected Subjects on Antiretroviral Therapy
submitted by glozil 36 minutes ago
Soluble CD14, a marker of monocyte activation and independent predictor of mortality in HIV disease, is reduced by rosuvastatin treatment. Monocyte tissue factor expression in HIV-infected subjects is reduced by rosuvastatin treatment, potentially reducing thrombotic risk.
High Rates of Congenital Cytomegalovirus Infection Linked With Maternal HIV Infection Among Neonatal Admissions at a Large Referral Center in Sub-Saharan Africa
submitted by podgelworsogor 36 minutes ago
There is a growing awareness of the possible importance of congenital cytomegalovirus (CMV) infections in high-seroprevalence populations. We show for the first time high rates of congenital CMV in neonatal admissions linked with maternal HIV infection in sub-Saharan Africa.
submitted by vekosnoekowode 36 minutes ago
The therapeutic promise of bioagents based on principles of phage biology for prophylaxis and treatment of bacterial infections, including multidrug-resistant organisms in humans and animals, and their use as decontaminants of food supplies and environments are reviewed.
Prediction of Liver Complications in Patients With Hepatitis C Virus-Related Cirrhosis With and Without HIV Coinfection: Comparison of Hepatic Venous Pressure Gradient and Transient Elastography
submitted by RexEllio 36 minutes ago
Hepatic venous pressure gradient (HVPG) is the best indicator of prognosis in patients with compensated cirrhosis. We found that transient elastography may have the same prognostic ability as HVPG in patients with compensated cirrhosis coinfected or not infected with HIV.
submitted by bartan 1 hour ago
One of the most elementary application of a lattice is the quantization of real-valued s-dimensional vectors into finite bit precision to make them representable by a digital computer. Most often, the simple s-dimensional regular grid is used for this task where each component of the vector is quantized individually. However, it is known that other lattices perform better regarding the average ...
A Robust Adaptive Grid Method for a System of Two Singularly Perturbed Convection-Diffusion Equations with Weak Coupling
submitted by GilbSulli 2 hours ago
A system of singularly perturbed convection-diffusion equations with weak coupling is considered. The system is first discretized by an upwind finite difference scheme for which an a posteriori error estimate in the maximum norm is constructed. Then the a posteriori error bound is used to design an adaptive gird algorithm. Finally, a first-order rate of convergence, independent of the perturbat...
submitted by KonRonnie 2 hours ago
Numerical time propagation of semi-linear equations such as reaction–diffusion, non-linear Schrödinger or semi-linear wave equations can be performed by the use of exponential time differencing. However, the evaluation of exponential integrators poses a serious technical complexity, particularly in multiple dimensions. In this paper we approach this difficulty by deriving simple polynomial s...
submitted by ftamin 3 hours ago
We propose a binocular stereo method which is optimized for reconstructing surface detail and exploits the high image resolutions of current digital cameras. Our method occupies a middle ground between stereo algorithms focused at depth layering of cluttered scenes and multi-view “object reconstruction” approaches which require a higher view count. It is based on global non-linear optimizat...
Meta-analysis methods for combining multiple expression profiles: comparisons, statistical characterization and an application guideline
submitted by EfrainTe 4 hours ago
As high-throughput genomic technologies become accurate and affordable, an increasing number of data sets have been accumulated in the public domain and genomic information integration and meta-analysis have become routine in biomedical research. In this paper, we focus on microarray meta-analysis, where multiple microarray studies with relevant biological hypotheses are combined in order to im...
submitted by erson 4 hours ago
In recent years genetic data analysis has seen a rapid increase in the scale of data to be analyzed. Schadt et al  offered that with data sets approaching the petabyte scale, data related challenges such as formatting, management, and transfer are increasingly important topics which need to be addressed. The use of succinct data structures is one method of reducing physical size of a data se...
submitted by JordyJoh 4 hours ago
The aim of this article was to give an accessible introduction to stable distributions for financial modeling. There is a real need to use better models for financial returns because the normal (or bell curve/Gaussian) model does not capture the large fluctuations seen in real assets. Stable laws are a class of heavy-tailed probability distributions that can model large fluctuations and allow m...
submitted by chlailiphosmi 4 hours ago
As the number of sources and quantity of document information explodes, efficient and intuitive visualization tools are desperately needed to assist users in understanding the contents and features of a document, while discovering hidden information. This overview introduces fundamental concepts of and designs for document visualization, a number of representative methods in the field, and chal...
Numerical simulation ultrahigh waterjet (WJ) flow field with the high-frequency velocity vibration at the nozzle inlet
submitted by hcannenghom 4 hours ago
This paper presents an investigation of ultrahigh pressure waterjet (WJ) flow field with the high-frequency velocity vibration at the nozzle inlet by computational fluid dynamics method. The velocity field of the flow inside the WJ nozzle is obtained. The influence of vibration parameters, such as amplitude and frequency on the flow field are studied. The results of investigation indicate that ...
submitted by FideArtur 4 hours ago
The present study examines a simple, zero-order semi-mechanistic approach towards the analysis of the two-way flow abrasive flow machining process, stemming from a need to reduce the number of time-consuming and labor-intensive experimental trials. The description consists of a set of coupled models, which are the following: an inelastic non-Newtonian model to capture the flow behavior of the a...