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Institution

Jordan University of Science and Technology

EducationIrbid, Irbid, Jordan
About: Jordan University of Science and Technology is a education organization based out in Irbid, Irbid, Jordan. It is known for research contribution in the topics: Population & Health care. The organization has 7582 authors who have published 13166 publications receiving 298158 citations. The organization is also known as: JUST.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the effect of hydrothermal treatment on physical properties of crystalline size and morphology is reported, and the optical properties are investigated experimentally and theoretically to verify the suitable model for electro-optical systems.

66 citations

Journal ArticleDOI
TL;DR: The wear behavior of nanofilled composite resin and feldspathic ceramic teeth varies according to the type of antagonistic material, however, alumina and zirconia ceramics caused less wear in antagonists than steatite ceramic.
Abstract: Statement of problem The wear resistance of nanofilled composite resin and feldspathic ceramic artificial teeth may vary according to the material type and physical characteristics of the antagonist. Purpose The purpose of this study was to evaluate the wear resistance of nanofilled composite resin and feldspathic ceramic artificial teeth after simulated mastication against steatite, zirconia, and alumina antagonists. Material and methods The study evaluated 6 groups of artificial teeth: 3 groups of 8 nanofilled composite resin teeth (Condyloform II NFC) and 3 groups of 8 feldspathic ceramic teeth (Bonartic CT). Three sets of 16 steatite, 16 zirconia, and 16 alumina cusp-shaped antagonist surfaces were fabricated and used to test wear resistance. Each group was loaded for 600,000 cycles. The wear resistance was analyzed by measuring vertical and volume substance lost (μm and mm 3 , respectively), determined with a laser scanner. Data were statistically analyzed using 2-way ANOVA and Games-Howell test (α=.05). Results The influence of the materials tested and antagonists was statistically significant. The composite resin teeth showed significantly higher vertical and volume substance loss than ceramic teeth opposing steatite cusps ( P P =.04, respectively), while composite resin teeth opposing alumina and zirconia cusps demonstrated less wear than ceramic teeth. However, the latter differences were not statistically significant. Conclusions The wear behavior of nanofilled composite resin and feldspathic ceramic teeth varies according to the type of antagonistic material. However, alumina and zirconia ceramics caused less wear in antagonists than steatite ceramic. (J Prosthet Dent 2008;100:441-448)

66 citations

Proceedings ArticleDOI
07 Apr 2015
TL;DR: This research introduces a framework that is capable of performing sentiment analysis on tweets written using either Modern Standard Arabic or Jordanian dialectical Arabic, and reveals that the dialect lexicon improves the accuracies of the classifiers.
Abstract: This article investigates sentiment analysis in Arabic tweets with the presence of dialectical words. Sentiment analysis deals with extracting opinionated phrases from reviews, comments or tweets. i.e. to decide whether a given review or comment is positive, negative or neutral. Sentiment analysis has many applications and is very vital for many organizations. In this article, we utilize machine learning techniques to determine the polarity of tweets written in Arabic with the presence of dialects. Dialectical Arabic is abundantly present in social media and micro blogging channels. Dialectical Arabic presents challenges for topical classifications and for sentiment analysis. One example of such challenges is that stemming algorithms do not perform well with dialectical words. Another example is that dialectical Arabic uses an extended set of stopwords. In this research we introduce a framework that is capable of performing sentiment analysis on tweets written using either Modern Standard Arabic or Jordanian dialectical Arabic. The core of this framework is a dialect lexicon which maps dialectical words into their corresponding Modern Standard Arabic words. The experimentation reveals that the dialect lexicon improves the accuracies of the classifiers.

66 citations

Journal ArticleDOI
TL;DR: To properly select patients for image-guided biopsy, interventional radiologists should be familiar with the biologic significance ofFDG uptake and various causes of false-positive and false-negative FDG uptake.
Abstract: Positron emission tomography (PET)/computed tomography (CT) with fluorine 18 fluorodeoxyglucose (FDG) is increasingly used in evaluation of oncology patients. Because PET/CT can demonstrate malignancy before morphologic changes are evident, application of PET/CT information to image-guided biopsy can facilitate early histologic diagnosis and staging. However, because FDG uptake is not specific to cancer, PET/CT findings may raise questions about whether uptake in a lesion is an indication for biopsy. To properly select patients for image-guided biopsy, interventional radiologists should be familiar with the biologic significance of FDG uptake and various causes of false-positive uptake. PET/CT images may also become a source of confusion in the interpretation of biopsy results. Various causes of false-positive and false-negative FDG uptake need to be considered, especially when there is a discrepancy between biopsy results and PET/CT findings. False-negative FDG uptake can result from cancers that are too small to be observed or not FDG avid. False-positive FDG uptake can be due to underlying inflammation from recent treatment. Conversely, complete resolution of FDG uptake in a treated lesion does not necessarily indicate absence of viable cells. When questions about PET/CT findings arise in the context of image-guided biopsy, discussion with experienced nuclear imaging physicians is essential.

66 citations

Journal ArticleDOI
TL;DR: Different environmental stresses that affect probiotics during food preparation, storage, and along the alimentary canal are discussed, including high temperature, low temperature,Low and alkaline pH, oxidative stress, high hydrostatic pressure, osmotic pressure, and starvation.
Abstract: Probiotics are defined as live microorganisms that improve the health of the host when administered in adequate quantities. Nonetheless, probiotics encounter extreme environmental conditions during food processing or along the gastrointestinal tract. This review discusses different environmental stresses that affect probiotics during food preparation, storage, and along the alimentary canal, including high temperature, low temperature, low and alkaline pH, oxidative stress, high hydrostatic pressure, osmotic pressure, and starvation. The understanding of how probiotics deal with environmental stress and thrive provides useful information to guide the selection of the strains with enhanced performance in specific situations, in food processing or during gastrointestinal transit. In most cases, multiple biological functions are affected upon exposure of the cell to environmental stress. Sensing of sublethal environmental stress can allow for adaptation processes to occur, which can include alterations in the expression of specific proteins.

66 citations


Authors

Showing all 7666 results

NameH-indexPapersCitations
Andrew McCallum11347278240
Yousef Khader94586111094
Michael P. Jones9070729327
David S Sanders7563923712
Nidal Hilal7239521524
Nagendra P. Shah7133419939
Jeffrey R. Idle7026116237
Rahul Sukthankar7024028630
Matthias Kern6633214871
David De Cremer6529713788
Moustafa Youssef6129915541
Mohammed Farid6129915820
Rudolf Holze5838813761
Rich Caruana5714526451
Eberhardt Herdtweck5633210785
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202331
2022104
20211,371
20201,304
2019994
2018862