An-Najah National University

About: An-Najah National University is a education organization based out in Nablus, Palestinian Territory. It is known for research contribution in the topics: Population & Adsorption. The organization has 1857 authors who have published 2607 publications receiving 68226 citations. The organization is also known as: An Najah National University.

Global research trends in the microbiome related to irritable bowel syndrome: A bibliometric and visualized study.

Abstract: BACKGROUND Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder Dysregulation of the gut-brain axis plays a central role in the pathophysiology of IBS It is increasingly clear that the microbiome plays a key role in the development and normal functioning of the gut-brain axis AIM To facilitate the identification of specific areas of focus that may be of relevance to future research This study represents a bibliometric analysis of the literature pertaining to the microbiome in IBS to understand the development of this field METHODS The data used in our bibliometric analysis were retrieved from the Scopus database The terms related to IBS and microbiome were searched in titles or abstracts within the period of 2000-2019 VOSviewer software was used for data visualization RESULTS A total of 13055 documents related to IBS were retrieved at the global level There were 1872 scientific publications focused on the microbiome in IBS There was a strong positive correlation between publication productivity related to IBS in all fields and productivity related to the microbiome in IBS (r = 0951, P < 0001) The United States was the most prolific country with 449 (24%) publications, followed by the United Kingdom (n = 176, 94%), China (n = 154, 82%), and Italy (n = 151, 81%) The h-index for all retrieved publications related to the microbiome in IBS was 138 The hot topics were stratified into four clusters: (1) The gut-brain axis related to IBS; (2) Clinical trials related to IBS and the microbiome; (3) Drug-mediated manipulation of the gut microbiome; and (4) The role of the altered composition of intestinal microbiota in IBS prevention CONCLUSION This is the first study to evaluate and quantify global research productivity pertaining to the microbiome in IBS The number of publications regarding the gut microbiota in IBS has continuously grown since 2013 This finding suggests that the future outlook for interventions targeting the gut microbiota in IBS remains promising

Effect of Axle Load Measurement Errors on Pavement Performance and Design Reliability

Abstract: In traffic characterization, axle load spectra (ALS) are one of the most critical inputs in the new Mechanistic-Empirical Pavement Design Guide (MEPDG). ALS have a significant impact on the predicted pavement performance. At the design stage, it is typically assumed that ALS as measured by weigh-in-motion (WIM) systems have adequate data quality and accuracy. In fact, the quality of WIM-based data has inherent uncertainties because of inaccuracy and systematic bias. While WIM data accuracy depends on the sensor technology, calibration errors and drift over time may introduce a systematic bias. Several studies have investigated the impact of traffic data collection technologies, data coverage, accuracy, and calibration errors on pavement loading and performance prediction. However, these studies were limited to a few distress measures and did not address design reliability aspects as considered in the MEPDG. This study investigated the impact of probable WIM errors on the ALS and quantified the effects of ...

Relativistic symmetries with the trigonometric Pöschl—Teller potential plus Coulomb-like tensor interaction

Abstract: The Dirac equation is solved to obtain its approximate bound states for a spin-1/2 particle in the presence of trigonometric P?schl?Teller (tPT) potential including a Coulomb-like tensor interaction with arbitrary spin?orbit quantum number ? using an approximation scheme to substitute the centrifugal terms ?(? ? 1)r?2. In view of spin and pseudo-spin (p-spin) symmetries, the relativistic energy eigenvalues and the corresponding two-component wave functions of a particle moving in the field of attractive and repulsive tPT potentials are obtained using the asymptotic iteration method (AIM). We present numerical results in the absence and presence of tensor coupling A and for various values of spin and p-spin constants and quantum numbers n and ?. The non-relativistic limit is also obtained.