United Arab Emirates University

About: United Arab Emirates University is a education organization based out in Al Ain, United Arab Emirates. It is known for research contribution in the topics: Population & Diabetes mellitus. The organization has 6227 authors who have published 14170 publications receiving 321143 citations. The organization is also known as: University of the United Arab Emirates & UAEU.

On the asymptotic stability of linear system of fractional-order difference equations

Abstract: In this paper we investigate the stability of the equilibrium solution of the νth order linear system of difference equations $$(\Delta _{a + u - 1}^ u y)(t) = \Lambda y(t + u - 1);t \in \mathbb{N}_a ,a \in \mathbb{R},and\Lambda \in \mathbb{R}^{p \times p} ,$$ subject to the initial condition $$y(a + u - 1) = y - 1,$$ , where 0 < ν < 1 and y−1 ∈ ℝp.

Liquid−Liquid Equilibrium of Ternary Systems of Cyclohexane + (Benzene, + Toluene, + Ethylbenzene, or + o-Xylene) + 4-Methyl-N-butyl Pyridinium Tetrafluoroborate Ionic Liquid at 303.15 K

Abstract: Liquid−liquid equilibrium data are critical for designing the extraction equipment or calculating the thermodynamic limit of a given separation. In this work, the LLE data were measured for the cyclohexane + (benzene, + toluene, + ethylbenzene, or + o-xylene) + 4-methyl-N-butyl pyridinium tetrafluoroborate ([bmpy]BF4) systems at 303.15 K under atmospheric pressure. The consistency of the measured LLE data was tested using the Othmer−Tobias correlation and the root-mean-square deviation (rmsd) in the mass fraction of [bmpy]BF4 in the lower phase and the average value of the absolute difference (AAD) between experimental mass fraction of cyclohexane in the upper phase and that calculated using the Othmer−Tobias correlation.

Video recording feedback: a feasible and effective approach to teaching history-taking and physical examination skills in undergraduate paediatric medicine.

Abstract: Medical educators have always recognized the need to teach and train medical graduates and undergraduates the skills of conducting a consultation. Several authors have established the efficacy of using constructive feedback on videotape of each student's interaction with a patient to teach and enhance such skills. This study reports 'students' perceptions' of the feedback process used in the Junior Paediatric Clerkship at the Faculty of Medicine of the United Arab Emirates University. An unexpected 73% of the respondents believed that self-observation influenced development of their clinical skills. More than 80% said that the feedback from instructors and peers helped them to improve their clinical skills, but they would have liked to have more than one of their consultations recorded and reviewed. It was found that 75% of the students felt that self-critique of their performance made them aware of their strengths and weaknesses and their skills in analysing and evaluating consultations had been enhanced. It was found from Kruskal Wallis one-way ANOVA that the students' professional attitude, empathy, and warmth towards the patients differed highly significantly (P = 0.0062, 0.0089, 0.0007, respectively) from self-assurance, self-confidence and competence. They were also deficient in certain areas of history-taking, interviewing skills, and physical examination techniques and perceived they needed more training in order to be proficient.

Vimentin Is at the Heart of Epithelial Mesenchymal Transition (EMT) Mediated Metastasis.

Abstract: Epithelial-mesenchymal transition (EMT) is a reversible plethora of molecular events where epithelial cells gain the phenotype of mesenchymal cells to invade the surrounding tissues. EMT is a physiological event during embryogenesis (type I) but also happens during fibrosis (type II) and cancer metastasis (type III). It is a multifaceted phenomenon governed by the activation of genes associated with cell migration, extracellular matrix degradation, DNA repair, and angiogenesis. The cancer cells employ EMT to acquire the ability to migrate, resist therapeutic agents and escape immunity. One of the key biomarkers of EMT is vimentin, a type III intermediate filament that is normally expressed in mesenchymal cells but is upregulated during cancer metastasis. This review highlights the pivotal role of vimentin in the key events during EMT and explains its role as a downstream as well as an upstream regulator in this highly complex process. This review also highlights the areas that require further research in exploring the role of vimentin in EMT. As a cytoskeletal protein, vimentin filaments support mechanical integrity of the migratory machinery, generation of directional force, focal adhesion modulation and extracellular attachment. As a viscoelastic scaffold, it gives stress-bearing ability and flexible support to the cell and its organelles. However, during EMT it modulates genes for EMT inducers such as Snail, Slug, Twist and ZEB1/2, as well as the key epigenetic factors. In addition, it suppresses cellular differentiation and upregulates their pluripotent potential by inducing genes associated with self-renewability, thus increasing the stemness of cancer stem cells, facilitating the tumour spread and making them more resistant to treatments. Several missense and frameshift mutations reported in vimentin in human cancers may also contribute towards the metastatic spread. Therefore, we propose that vimentin should be a therapeutic target using molecular technologies that will curb cancer growth and spread with reduced mortality and morbidity.