The Relationship between Depression and Insomnia Symptoms Amongst a Sample of UK University Students

Umair Akram,asha akram,Maria Gardani,Antonia Ypsilanti,Kristofor McCarty,Sarah Allen,Lambros Lazuras 대한수면학회 2019 sleep medicine research Vol.10 No.1

Research exploring the relationship between mental health difficulties and insomnia amongst stu- dents in the UK remains limited. This study further examined the extent of potential relationships between insomnia, anxiety and depression symptoms amongst university students in the UK. A sample of 487 students from four northern universities completed The Insomnia Severity Index, SLEEP-50, and Hospital Anxiety and Depression Scales. Approximately one fifth of students expe- rienced mild to severe levels of depressive symptoms, and two thirds reported anxious symptoms. One quarter of students indicated insomnia symptoms in the clinical range, however the preva- lence of sleep-disorders other than insomnia remained low (< 5%). Finally, symptoms of insomnia and apnoea were significantly related to depression, after controlling for co-morbid anxiety. The current outcomes highlight the high prevalence of depressive and insomnia symptoms amongst university students in the UK. Considering the relationship between insomnia and depression, stu- dent-focused mental health services should explore the possibility of treating insomnia to circum- vent depression.

Développer l’expression écrite du français par les activités de pensée critiquey

Soodeh Eghtesad,Akram Inanloo Khajlo 고려대학교 응용문화연구소 2020 에피스테메 Vol.0 No.24

This study analyzes the impact of a practical teaching of critical thinking on the writing skills of French language learners in an institutional context in Iran. Learners were divided into two groups, an experimental group and a control group; Honey's (2005) Critical Thinking Questionnaire was administered to the participants and their scores were analyzed to ensure that there was no significant difference between the two groups regarding their critical thinking abilities at the beginning of the training. Learners completed five semesters of coursework with identical course objectives and activities. However, the experimental group also received critical thinking training through media analysis, debates, and problem-solving activities. The analysis of the data, which consisted of qualitative analysis of students’ writings in the middle and at the end of the training, indicates that the experimental group outperformed the control group in writing. These results imply that critical thinking activities had a positive impact on learners' writing skills since they allowed them to perform writing tasks by paying attention to the writing as a process, rather than only focusing on the final product. Soodeh Eghtesad・Akram Inanloo Khajlo 121 [RÉSUMÉ] Développer l’expression écrite du français par les activités de pensée critique Soodeh Eghtesad・Akram Inanloo Khajlo Cette étude tente d’analyser l'impact de l'enseignement de la pensée critique sur le développement des compétences d'écriture des apprenants du français langue étrangère en contexte insitutionnel en Iran. Les apprenants étaient divisés en deux groupes, un groupe expérimental et un groupe témoin et le questionnaire de pensée critique de Honey (2005) était administré aux participants des deux groupes afin d’assurer qu'il n'y avait pas de différence significative entre les deux groupes concernant leur capacité de pensée critique au début de la formation. Les apprenants ont suivi cinq semestres de formation dont les objectifs du cours et les activités étaient identiques, mais le groupe expérimental a également reçu une formation à la pensée critique à travers des activités d’analyse des médias, de résolution de problèmes, et de débats, tandis que le groupe témoin n’a suivi aucune formation à la pensée critique. L’analyse des données, qui consiste en analyse qualitative des écritures des apprenants des deux groupes au milieu et à la fin de la formation, montre que le groupe expérimental a surpassé le groupe témoin en matière de production écrite, ce qui indique que l’enseignement de la pensée critique avait un impact positif sur les compétences d’écriture des apprenants, puisqu’elle les a rendus capables d’écrire en faisant attention au processus d’écriture plutôt que focaliser uniquement sur le produit final.

Asymmetric Flankers in Comodulation Masking Release

Akram Pourbakht,Leila Faraji 대한청각학회 2019 Journal of Audiology & Otology Vol.23 No.1

Background and Objectives: Detection of auditory signals may be improved when maskersfar from the frequency of the target signal are coherently amplitude-modulated. This improvementof signal detection is called comodulation masking release (CMR). In the CMR experiments,flankers have been usually arranged symmetrically. In practice, we will be confrontedwith a problem by using symmetric flankers due to the limited output of clinical audiometers,especially at high-frequency. We aimed to check whether flanker arrangement has any effecton the amount of CMR, especially when there is no flankers with a frequency higher than thesignal. Subjects and Methods: Eighteen normal hearing listeners ranging in age from 20 to46 years old participated. Symmetric (2-2) and asymmetric (3-1 and 4-0) flankers were usedand then the amount of CMR compared among them. Results: Our results showed in thesame numbers of flankers, there were no statistically CMR differences between symmetricand asymmetric arrangement. Also when we did not have a flanker at a frequency higherthan the signal and all flankers were placed below the signal, there was no statistically differencewith the symmetric arrangement. Conclusions: The asymmetry of the flankers andalso omitting the flankers with a frequency higher than the signal, have no effect on CMR results. We concluded that CMR can be considered by using clinical audiometer.

Hydroxyapatite coated magnesium alloy for peripheral nerve regeneration

( Akram Abdo Almansoori ),( Kyung Won Ju ),( Bongju Kim ),( Soung Min Kim ),( Sung-mi Lee ),( Jong-ho Lee ) 조선대학교 치의학연구원(구 조선대학교 구강생물학연구소) 2018 Oral Biology Research (Oral Biol Res) Vol.42 No.3

Magnesium (Mg) has been used as a neuroprotective agent and for orthopedic and cardiovascular stent applications for a long time. Mg is a promising material for neural regeneration own to its metallic nature, biodegradability, and biocompatibility. To evaluate the benefit of hydroxyapatite (HA) coated Mg alloy (WE43) nerve conduit in peripheral nerve injury regeneration. In vitro cell adhesion and proliferation of PC12 cells and Schwann cells over pure Mg, WE43, HA coated pure Mg (HA-Mg), and HA coated WE43 (HA-WE43) disks were assessed using scanning electron microscope and EZ-CYTOX assay. In vivo study was also performed for sham, silicone nerve conduits, and HA-WE43 nerve conduits to evaluate rat sciatic nerve regeneration over 10 mm gap. These rats were observed for three months with weekly functional assessment using sciatic functional index. Regeneration was evaluated through retrograde neuron labeling and histomorphometric analysis at the end of the experiment. Non-coated pure Mg and WE43 conduits showed fast resorption rate and high gas formation. Higher adhesion and proliferation of PC12 cells were found in HA-WE43 disks. At the end of three months, HA-WE43 nerve conduit showed mild resorption without detectable gas formation in the surrounding tissue. However, only scanty regenerated neural tissue was found within the conduit. HA-WE43 nerve conduit showed controlled degradation and absence of gas formation with scanty regenerated neural tissue.

68Ga-DOTATOC Embolus Manifestation and Spontaneous Resolution by PET/CT

Akram Al-Ibraheem,Deya’ Aldeen Sweedat,Anwer Farah,Feras Istatieh,Malik E. Juweid 대한핵의학회 2022 핵의학 분자영상 Vol.56 No.4

68Ga-labeled somatostatin receptor analogs physiologic distribution patterns have become recognizable among nuclear medicine physicians because of the increasing routine clinical use of this modality in the work-up of neuroendocrine tumors. Some pitfalls during 68Ga-labeled somatostatin receptor PET/CT have recently been reported as causes of misdiagnoses. Iatrogenic microembolism as a cause of 18F-FDG embolus is well-established; however, 68Ga-DOTATOC embolus is not well documented in the literature. In the current case, the presence and the spontaneous resolution of the 68Ga-labeled somatostatin receptor analogs embolus during sequential PET/CT are nicely demonstrated. Awareness of this incidental finding would avoid misdiagnosis and unnecessary investigations.

CEnsLoc: Infrastructure-Less Indoor Localization Methodology Using GMM Clustering-Based Classification Ensembles

Akram, Beenish Ayesha,Akbar, Ali Hammad,Kim, Ki-Hyung Hindawi Limited 2018 Mobile information systems Vol.2018 No.-

<P>Indoor localization has continued to garner interest over the last decade or so, due to the fact that its realization remains a challenge. Fingerprinting-based systems are exciting because these embody signal propagation-related information intrinsically as compared to radio propagation models. Wi-Fi (an RF technology) is best suited for indoor localization because it is so widely deployed that literally, no additional infrastructure is required. Since location-based services depend on the fingerprints acquired through the underlying technology, smart mechanisms such as machine learning are increasingly being incorporated to extract intelligible information. We propose CEnsLoc, a new easy to train-and-deploy Wi-Fi localization methodology established on GMM clustering and Random Forest Ensembles (RFEs). Principal component analysis was applied for dimension reduction of raw data. Conducted experimentation demonstrates that it provides 97% accuracy for room prediction. However, artificial neural networks, <I>k</I>-nearest neighbors, <I>K</I><TEX>$ ^{\ast }$</TEX> , FURIA, and DeepLearning4J-based localization solutions provided mean 85%, 91%, 90%, 92%, and 73% accuracy on our collected real-world dataset, respectively. It delivers high room-level accuracy with negligible response time, making it viable and befitted for real-time applications.</P>

A note on some inequalities for the $b$-numerical radius and $b$-norm in 2-Hilbert space operators

Akram Babri Bajmaeh,Mohsen Erfanian Omidvar 강원경기수학회 2019 한국수학논문집 Vol.27 No.1

In this paper, the definition $b$-numerical radius and $b$-norm is introduced and we present several $b$-numerical radius inequalities. Some applications of these inequalities are considered as well.

Yolk-Shell Fe3O4-Polyaniline Decorated Pd-Ni Nanoparticles with Enhanced Performance for Direct Formic Acid Fuel Cell

Akram Hosseinian,Rahim Hosseinzadeh-Khanmiri,Ebrahim Ghorbani-Kalhor,Jafar Abolhasani,Mirzaagha Babazadeh,Esmail Vessally 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.2

The yolk-shell Fe3O4-polyaniline for decoration of Pd-Ni nanoparticles (yolk-shell Fe3O4-PANI/ Pd-Ni) were synthesized and used as a new electrocatalyst for oxidation of formic acid. The yolkshell Fe3O4-PANI/Pd-Ni catalyst provided superior catalyst performance for formic acid oxidation in H2SO4 aqueous solution. These yolk-shell Fe3O4-PANI/Pd-Ni catalysts were found to be more resistant to deactivation in the oxidation of formic acid than yolk-shell Fe3O4-PANI/Pd and Pd/C and to consistently show better long-term performances. The enhanced catalytic performance may arise from the unique structure and surface properties of the yolk-shell Fe3O4- PANI and bi-functional effect, which process extraordinary promotional effect on Pd catalyst.

Numerical Investigation of Turbulent Open Channel Flow with Semi-cylindrical Rough Beds

Akram Abbaspour,Saeed Hashemi Kia 대한토목학회 2014 KSCE Journal of Civil Engineering Vol.18 No.7

Flow development in an open-channel with rough beds was investigated using FLUENT, a commercial Computational Fluid Dynamics (CFD) software. The Renormalization Group (RNG) k-ε turbulence model was used for subcritical flow cases. The Volume of Fluid (VOF) method was used to allow the free-surface to deform freely with the underlying turbulence. The main purpose of this study was to examine the effects of the different types of surface roughness on a turbulent boundary layer in a relatively high Reynolds flow. The determination of velocity profile in turbulent open channels with rough bed is a difficult task due to the significant effects of the roughness. The velocity distributions in the log-region for the rough wall were determined. The roughness function ∆U + , the characteristic downward shift of the logarithmic part of the mean velocity profile, was found to be more than 12 for three rough surfaces the roughness function, ∆U + scales logarithmically with normalized effective height y+.

Distance Eccentric Connectivity Index of Graphs

Akram Alqesmah,Anwar Saleh,R. Rangarajan,Aysun Yurttas Gunes,Ismail Naci CANGUL 경북대학교 자연과학대학 수학과 2021 Kyungpook mathematical journal Vol.61 No.1

Let G = (V, E) be a connected graph. The eccentric connectivity index of G is defined by ξC (G) = ∑u∈V (G) deg(u)e(u), where deg(u) and e(u) denote the degree and eccentricity of the vertex u in G, respectively. In this paper, we introduce a new formulation of ξC that will be called the distance eccentric connectivity index of G and defined by ξDe(G) = ∑u∈V (G) degDe(u)e(u) where degDe(u) denotes the distance eccentricity degree of the vertex u in G. The aim of this paper is to introduce and study this new topological index. The values of the eccentric connectivity index is calculated for some fundamental graph classes and also for some graph operations. Some inequalities giving upper and lower bounds for this index are obtained.