检索结果-南通市图书馆

Mental health during COVID-19 in Qatar

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

General Psychiatry 2020年第6期33卷 432-436页

作者： Ovais Wadoo Javed Latoo Shuja Mohd Reagu raed Ahmad Assi Amro Naseer Ahmad Masoodi Majid Alabdulla Department of Psychiatry Mental Health ServicesDohaQatar Ambulatory General Internal Medicine Hamad Medical CorporationDohaQatar Department of Psychiatry Qatar University College of MedicineDohaAd DawhahQatar

INTRODUCTION The COVID-19 pandemic has posed unprecedented health and social *** has been working to promote the integration of mental health and psychosocial support into the COVID-19 response effort.1 It is vital that targeted measures are initiated to mitigate the potential mental health consequences of the COVID-19 pandemic and psychiatric patients continue to receive a range of psychiatric *** need to adapt strategies identified by WHO to strengthen mental healthcare delivery.

关键词： consequences initiated COV

SCALABLE PERCEPTUAL AUDIO REPRESENTATION WITH AN ADAPTIVE THREE TIME-SCALE SINUSOIDAL SIGNAL MODEL

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Electronics(China) 2004年第3期21卷 213-221页

作者： Al-Moussawy raed Gollege of Electronic and Information Eng. South China Univ.of Tech.Guangzhou 510640

This work is concerned with the development and optimization of a signal model for scalable perceptual audio coding at low bit rates. A complementary two-part signal model consisting of Sines plus Noise (SN) is described. The paper presents essentially a fundamental enhancement to the sinusoidal modeling component. The enhancement involves an audio signal scheme based on carrying out overlap-add sinusoidal modeling at three successive time scales, large, medium, and small. The sinusoidal modeling is done in an analysis-by-synthesis overlap- add manner across the three scales by using a psychoacoustically weighted matching pursuits. The sinusoidal modeling residual at the first scale is passed to the smaller scales to allow for the modeling of various signal features at appropriate *** approach greatly helps to correct the pre-echo inherent in the sinusoidal model. This improves the perceptual audio quality upon our previous work of sinusoidal modeling while using tile same number of sinusoids. Tile most obvious application for the SN model is in scalable, high fidelity audio coding and signal modification.

关键词： Multiresolution sinusoidal modeling Parametric audio coding Low-rate audio coding Signal modifications

Recent progress in two-dimensional metallenes and their potential application as electrocatalyst

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第7期94卷 577-598页

作者： Umer Shahzad Mohsin Saeed Muhammad Fazle Rabbee Hadi M.Marwani Jehan Y.Al-Humaidi Muhammad Altaf raed H.Althomali Kwang-Hyun Baek Md.Rabiul Awual Mohammed M.Rahman Department of Chemistry Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Biotechnology Yeungnam UniversityGyeongsanSouth Korea Center of Excellence for Advanced Materials Research(CEAMR) King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Chemistry College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.BOX 84428Riyadh 11671Saudi Arabia Department of Chemistry Center of Excellence for Innovation in Chemistry(PERCH-CIC)Center of Excellence in Materials Science and TechnologyFaculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Department of Chemistry College of Art and SciencePrince Sattam Bin Abdulaziz UniversityWadi Al-Dawasir 11991Saudi Arabia Western Australian School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityGPO Box U 1987PerthWA 6845Australia

In this article,we looked at metallenes,a novel class of two-dimensional(2D)metals that are attracting interest in the energy and catalysis *** is one area where their exceptional physicochemical and electrical characteristics might be *** are unique because they include several metal atoms that are not in a coordinated *** makes them more active and improves their atomic uti-lization,which in turn increases their catalytic *** article delves into the potential of two-dimensional metals as electrocatalysts for carbon dioxide reduction,fuel oxidation,oxygen evolution,and oxygen reduction reactions in the context of sustainable energy *** to the exception-ally high surface-to-volume ratio,large surface area as well as their optimized atomic use efficiency,2D materials defined by atomic layers are crucial for surface-related sustainable energy *** to its exceptional properties,such as high conductivity and the ability to enhance the exposure of active metal sites,2D metallenes have recently attracted a lot of interest for use in catalysis,electronics,and energy-related *** their highly mobility,adjustable surface states,and electrical struc-tures that can be fine-tuned,2D metallenes are promising nanostructure materials for use in energy con-version with the sustainable applications.

关键词： Metallenes Electrocatalysts Electrochemical processes Atomically thin structure

Universal Intelligent Small Cell （UnISCell） for next generation cellular networks

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Digital Communications and Networks 2016年第4期2卷 167-174页

作者： Mohammad Patwary Shree Krishna Sharma Symeon Chatzinotas Yunfei Chen Mohamed Abdel-Maguid raed Abd-Alhameed James Noras Bjorn Ottersten FCES Staffordshire University United Kingdom Interdisciplinary Centre for Security Reliability and Trust (SnT) University ofLuxemboury 4 rue Alphonse Weicker Luxembourg L-2721 Luxembourg University of Warwick United Kingdom University of Suffolk United Kingdom University of Bradford United Kingdom

Exploring innovative cellular architectures to achieve enhanced system capacity and good coverage has become a critical issue towards realizing the next generation of wireless communications. In this context, this paper proposes a novel concept of Universal Intelligent Small Cell （UnISCell） for enabling the densification of the next generation of cellular networks. The proposed novel concept envisions an integrated platform of providing a strong linkage between different stakeholders such as street lighting networks, landline telephone networks and future wireless networks, and is universal in nature being independent of the operating frequency bands and traffic types. The main motivating factors for the proposed small cell concept are the need of public infrastructure re-engineering, and the recent advances in several enabling technologies. First, we highlight the main concepts of the proposed UnISCell platform. Subsequently, we present two deployment scenarios for the proposed UnISCell concept considering infrastructure sharing and service sharing as important aspects. We then describe the key future technologies for enabling the proposed UnISCell concept and present a use case example with the help of numerical results. Finally, we conclude this article by providing some interesting future recommendations.

关键词： Next Generation Wireless Small Cell Public Infrastructure Re-engineering 5G Deployment

Should a VP or LP Shunt be Used for the Treatment of Pseudotumorcerebri in Adults?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Modern Neurosurgery 2023年第4期13卷 149-155页

作者： Hassan Kadri raed Abouharb Rostom Mackieh Rafik Haider Tim Kadri Faculty of Medicine Department of Neurosurgery Damascus University Damascus Syria Faculty of Medicine Department of Internal Medicine Damascus University Damascus Syria Department of Statistics MSRC Damascus Syria

Introduction: Pseudotumorcerebri(PTC) is a condition characterized by false brain tumor symptoms, caused by high intracranial pressure (ICP). Treatment options include medication, weight loss, surgery, and shunting. Shunting, either ventriculoperitoneal (VP) or lumboperitoneal (LP), emerged as the preferred method of treatment, but there is an ongoing debate as to which technique should be prioritized. The aim of this study is to gather additional evidence to determine the optimal type of shunt for treating PTC. Materials and Methods: Ninety patients with PTC were studied at Damascus University between 2016 and 2021. The study monitored symptoms before and after treatment, with improvement related to the technique used (VP or LP shunts). Of all patients, 83 were women and 7 were men. In addition, complications were analyzed. Results: Both shunts showed similar postoperative rates of symptom improvement, but VP shunts were utilized more frequently overall in this study. Patients who received LP shunt surgery had a higher rate of postoperative complications compared to those who received VP shunt surgery, but the chi-squared analysis did not provide sufficient evidence to confirm a significant relationship between the type of surgery and the occurrence of postoperative complications. Conclusion: Despite ongoing controversy about the optimal treatment for benign intracranial hypertension (BTC), most authors approved the trend of using VP (ventriculoperitoneal) shunts, given a lower rate of complications. However, there is no statistically significant difference between outcomes of VP and LP (lumboperitoneal) shunting techniques, according to our research.

关键词： Pseudotumorcerebri (PTC) Benign Intracranial Hypertension (BTC) Ventriculoperitoneal (VP) Shunt Lumboperitoneal (LP) Shunt Cerebrospinal Fluid (CSF)

High-Throughput and Area-Efficient FPGA Implementations of Data Encryption Standard (DES)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Circuits and Systems 2014年第3期5卷 45-56页

作者： raed Bani-Hani Salah Harb Khaldoon Mhaidat Eyad Taqieddin Department of Computer Engineering Jordan University for Science and Technology Irbid Jordan Department of Network Engineering and Security Jordan University for Science and Technology Irbid Jordan

One of the most popular standards for protecting confidential information is the Data Encryption Standard (DES). Although it has been replaced by the Advanced Encryption Standard (AES), it is still widely used in Automatic Teller Machines (ATM’s), smartcards, and mobile phone SIM cards. In this paper, we present area-efficient and high-throughput FPGA implementations of the DES which are developed using the Xilinx FPGA ISE design suite. In fact, we propose modifications on the fastest DES design reported in the literature and achieve 1.1 times higher speed. Also, we introduce an 8-stage pipelined design that needs only 0.75 times the registers and consumes 0.65 times the power of a similar 16-stages pipelined design. High-speed design and synthesis optimization techniques including pipelining, register retiming, and logic replication are used. Post- layout synthesis results show that the proposed implementations achieve high throughput-to-area ratio. To make a fair comparison, the proposed designs were synthesized using matching FPGA devices as being used by other implementations reported in the literature.

关键词： DES FPGA Pipelined Iterative Security Efficiency Encryption

Determination of Antibiotic Drug Cefdinir in Human Plasma Using Liquid Chromatography Tandem Mass Spectroscopy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2015年第3期6卷 239-245页

作者： Mohammad A. Al Bayyari raed S. Abu Ajjour College of Science and Health Professions King Saud Bin Abdulaziz University for Health Sciences National Guard Health Affairs Jeddah KSA Bioanalytical Laboratory International Pharmaceutical Research Center Amman Jordan

The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that there are conflicts of interests between the authors and their organization. The scientific community takes a very strong view on this matter, and the American Journal of Analytical Chemistry treats all unethical behavior seriously. This paper published in Vol. 6 No. 3 239-254, 2015 has been removed from this site. Title: Determination of Antibiotic Drug Cefdinir in Human Plasma Using Liquid Chromatography Tandem Mass Spectroscopy Author: Mohammad A. Al Bayyari, raed S. Abu

关键词： Cefdinir HPLC-MS/MS Plasma ESI Source Positive Ion Mode MRM Mode

Surgical Correction for Paralytic Strabismus Using T-Plate Anchor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Ophthalmology 2014年第2期4卷 31-35页

作者： Anwar Ramadhan raed Behbehani Mishari Dahrab Haitham Murad Al-Bahar Ophthalmology Center Kuwait City Kuwait Department of Oral and Maxillofacial Surgery Amiri Hospital Kuwait City Kuwait

External or internal ophthalmoloplegia will result in a complete or a partial ocular dysmotility leading to a debilitating and variable manifest binocular diplopia for a majority of the patients. Complete third, forth and sixth nerve cranial nerve palsies are among the many number of etiologies appearing as paralytic strabismus. Successful clinical management, elimination of symptomatic diplopia in the primary field of gaze and increased binocular field of motor and sensory fusion as a result of the oculomotor nerve (III) palsy are challenging tasks for physicians facing this difficult clinical entity. Here we report a novel surgical technique in the clinical management of this disease through suture-fixation of medial rectus muscle onto Titanium plate (T-plate) already anchored into the nasal orbital wall.

关键词： T-Plate Paralytic Strabismus Anchor

Non-Enzymatic Electrochemical Sensing of Bisphenol A in Drinking Water and Milk Using Bimetallic Nickel-Copper Metal–Organic Framework

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Analysis and Testing 2024年第4期8卷 451-465页

作者： Baban Dey Md.Wasi Ahmad Refat Al-Shannaq Jehan Y.Al-Humaidi S.K.Safdar Hossain Chandra N.Patra raed H.Althomali Mohammed M.Rahman Arup Choudhury Department of Chemical Engineering Birla Institute of Technology Department of Chemical Engineering College of EngineeringDhofar University Department of Chemistry College of SciencePrincess Nourah Bint Abdulrahman University Department of Chemical Engineering College of EngineeringKing Faisal University Analytical Chemistry Division Chemistry GroupBhabha Atomic Research Centre Homi Bhabha National Institute Department of Chemistry College of Art and SciencePrince Sattam Bin Abdulaziz University Center of Excellence for Advanced Materials Research (CEAMR) & Department of ChemistryFaculty of ScienceKing Abdulaziz University

In recent years, there have been concerns about the toxicity of bisphenol A(BPA) in food packaging materials due to the potential endocrine disrupting effects it may have on humans, especially children and infants. In this present investigation, a free-standing nickel-copper pyridine-2,6-dicarboxylic acid(PDA) metal organic framework(MOF) anchored carbon nanofiber paper(Ni-Cu(PDA)MOF/CNF) was synthesized for the sensing and quantify the BPA analytes in milk and water. As-prepared bimetallic MOF hybrid materials are extremely porous, hydrophilic in nature with a huge surface area. This allows for the easy pathway of analyte molecules, which react with the redox-active metal sites of MOF matrix and enhance the sensitivity. During electrocatalysis reaction, various functional groups present in the MOF system can also act as dynamic adsorption sites. In the neutral medium(pH = 7.0), the Ni-Cu(PDA)MOF/CNF modified glassy carbon electrode(Ni-Cu(PDA)MOF/CNF/GCE) ascertained good catalytic activity and strong electrochemical sensitivity toward BPA with higher sensitivity value and lower limit of detection(LOD) value. The irreversible and diffusion-controlled oxidation reactions of BPA were observed. The bimetallic MOF modified electrode displayed an extensive linear ranging from 1 to 150 μmol/L with a LOD of 75 n mol/L for BPA detection. The MOF anchored electrode displayed exceptional anti-interference property, reproducibility and good storage stability up to one month. It is notable that the Ni-Cu(PDA)MOF/CNF/GCE has proved the competence of detecting BPA in milk and drinking water samples, which displayed satisfactory outcomes with chromatographic analysis.

关键词： Bisphenol A Carbon nanofiber Electrochemical sensor Limit of detection Nickel-copper MOF