Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 24 )

2018 ( 33 )

2017 ( 22 )

2016 ( 32 )

Custom range...

Search Results: 1 - 10 of 2669 matches for " Tajamal Hussain "
All listed articles are free for downloading (OA Articles)
Page 1 /2669
Display every page Item
Development of SDS Modified Graphite Electrode for Effective Oxidation of Methanol and Ethanol  [PDF]
Tajamal Hussain
Open Journal of Applied Sciences (OJAppS) , 2016, DOI: 10.4236/ojapps.2016.613074
Abstract: Methanol and ethanol fuel cells are getting important day by day because of energy crises. Main concern for fuel cell is the efficiency of the metal catalyst used for oxidation of methanol and ethanol. In this work, surfactant reformed electrodes by introducing sodium dodecyl sulphate (SDS), surfactant, at the surface of graphite electrodes along the metal nanoparticles were tried to develop. Idea behind it is to enhance the catalytic activity of metal nanoparticles through SDS. Modification of the graphite electrodes by SDS was characterized using Fourier transform infrared (FTIR) spectroscopy. Afterwards through electrochemical deposition, iron nanoparticles were got deposited on SDS modified and unmodified graphite electrodes which acted as catalyst. SDS modified iron deposited electrodes were utilized for the oxidation of methanol and ethanol in basic media. It was expected that SDS deposited at the surface of the electrodes would play an effective role in enhancing the rate of the oxidation reaction just by creating interaction between catalyst and reactant. Similar oxidation reaction was studied using unmodified iron deposited graphite electrode. Comparison of the results of oxidation reactions encourages the use of surfactant to speed up the oxidation reaction.
Monitoring Oxidative Degradation of Thermally Stressed Palm Olein Shortening by Spectroscopic and Chromatographic Techniques  [PDF]
Adnan Mujahid, Saba Nazir, Muhammad Hamid Raza, Azeem Intisar, Tajamal Hussain, Ahsan Sharif, Ejaz Ahmed
Open Journal of Applied Sciences (OJAppS) , 2018, DOI: 10.4236/ojapps.2018.812048
Abstract: Deep frying with repeated use of same edible oil leads to the formation of lipid oxidation products. The presence of these oxidized products formed during frying at elevated temperature is hazardous for human health and therefore, requires prompt analysis for ensuring its fitness/quality. In this study, oxidative degradation of thermally stressed edible oils canola, sunflower and palm olein shortening was studied at 180°C ± 5°C up to 48 hours. Palm olein shortening remained stable during this period as the increase in its acid value was significantly less than canola and sunflower seed oils. The shortening samples were further studied by attenuated total reflectance Fourier transformation infrared (ATR-FTIR) and gas chromatography mass spectrometry (GC-MS) to evaluate the formation of various oxidation products due to thermal stress. ATR-FTIR indicates the formation of free fatty acids (FFAs), aldehyde groups and change in degree of unsaturation while GC-MS gives important information about profile of FFAs. The combination of these analytical techniques is useful for rapid and highly sensitive analysis of oxidized edible oil thus, ensuring its quality and fitness for safe use.
Molecularly Imprinted Nanomaterials for Sensor Applications
Muhammad Irshad,Naseer Iqbal,Adnan Mujahid,Adeel Afzal,Tajamal Hussain,Ahsan Sharif,Ejaz Ahmad,Muhammad Makshoof Athar
Nanomaterials , 2013, DOI: 10.3390/nano3040615
Abstract: Molecular imprinting is a well-established technology to mimic antibody-antigen interaction in a synthetic platform. Molecularly imprinted polymers and nanomaterials usually possess outstanding recognition capabilities. Imprinted nanostructured materials are characterized by their small sizes, large reactive surface area and, most importantly, with rapid and specific analysis of analytes due to the formation of template driven recognition cavities within the matrix. The excellent recognition and selectivity offered by this class of materials towards a target analyte have found applications in many areas, such as separation science, analysis of organic pollutants in water, environmental analysis of trace gases, chemical or biological sensors, biochemical assays, fabricating artificial receptors, nanotechnology, etc. We present here a concise overview and recent developments in nanostructured imprinted materials with respect to various sensor systems, e.g., electrochemical, optical and mass sensitive, etc. Finally, in light of recent studies, we conclude the article with future perspectives and foreseen applications of imprinted nanomaterials in chemical sensors.
Use of Constructivist Approach in Higher Education: An Instructors’ Observation  [PDF]
Irshad Hussain
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.32028
Abstract: The study aimed at exploring the significance of constructivist approach at higher education level. It also examined its effects on social learning of students. The researcher adopted observational method of descriptive research. The participants of the study consisted of students of Master of Arts in Education (M. A. Education) of the Islamia University of Bahawalpur. The researcher taught a course titled, “Qualitative research methods” for three years to three (different M. A. Education) classes. The researcher used constructivist approach and designed activities to involve students in the process of learning. The activities were offered to homogeneous (male-male and female-female) as well as heterogeneous (male-female) groups of students. On the basis of observation, the researcher concluded that students enjoyed working on collaborative and cooperative projects and tasks. They were keen on constructing knowledge by involving themselves in activities and showing their readiness to embrace constructivist approach. Constructivist approach played a significant role in the process of learning to constructing knowledge. Similarly, collaborative and cooperative work developed contribution spirit among students overcoming their shyness and introversion. They became independent and capable of taking initiatives in conducting research projects. They also learnt ethics, social skills and etiquettes in groups. However, some culture related problems like working of female students with their counterparts and shyness of rural students were noted.
Integrative therapy for personality disorders: Experiences in developing integrative approaches for treatment-refractory personality-disordered clients  [PDF]
Nazir Hussain
Health (Health) , 2013, DOI: 10.4236/health.2013.55112

Personality Disordered (herein referred to as PD) clients are challenging to statutory mental healthcare programmes. They can be difficult to diagnose: their disorders can be obscured by second-order problems such as anxiety and depression, caused by PD cognitive processes. Treatment-as-usual (the predominant model of psychiatric intervention) for PD clients in crisis tends to focus on these second-order presentations, but provide no means of identifying underlying PD. The purpose of this paper is to describe how heuristic methods of diagnosis can be used to reframe the client’s distress in the context of personality disorders (according to DSM-IV criteria), and how subsequent application of integrative therapies can break their cycle of recidivism. Method: Two case studies of treatment-refractory individuals with cyclical patterns of crisis-point service engagement for self-harm or psychotic depression where heuristic/ integrative therapies were used. Results: The use of integrative therapies in the case studies presented resulted in a marked change in recidivism and quality of life for each client, as measured by a significant reduction in presentation of symptoms and hypervigilance. Discussion: By understanding the maladaptive cognitive-behavioural processes of PD clients, they can be modified to reduce the client’s self-defeating behavioural patterns, breaking the cycle of recidivism. However, a new diagnostic strategy must first be formulated that looks at the clients past use of mental health services to detect underlying PD.

Skill Gap Analysis in the Ship Breaking Industry of Pakistan  [PDF]
Sayed Asghar Shah, Hadi Hussain, Mujahid Hussain
American Journal of Industrial and Business Management (AJIBM) , 2017, DOI: 10.4236/ajibm.2017.711088
Abstract: Geographically Pakistan gains much importance in the sea linkages as it intersects the three main sea lines of communication (SLOCs). After the project China Pakistan Economic Corridor (CPEC), there we see improvement in infrastructure of every sector which is linked with it. But the Ship breaking sector located at Gaddani, Pakistan was still ignored. And the main focus of our study is on the safety measures, education, health, and demands of TEVT graduates in this sector. Data is collect through survey in 2016. At start the ship breaking sector was on peak and become the No. 1 sector around the globe but unfortunately this sector in performance getting down and down with time. There are three main reasons, first, the high tax rate was imposed, second, there was no proper safety measures as we see deaths and injuries incidents are taken place, no proper medical facilities are available and third there was no proper training and education for the workforce which are engaged in this sector. All the needs of this sector to make it Green are addressed in this study properly. If all the measures which we addressed for the improvement of this sector is handled properly than this sector will contribute much more to GDP in different ways as this sector in terms of employment, and will also produce much more steel which not only fill the demand of steel domestically but also we will export it to different countries.
Deriving Software Acquisition Process from Maturity Models—An Experience Report  [PDF]
Hussain Alfaraj, Shaowen Qin
Journal of Software Engineering and Applications (JSEA) , 2010, DOI: 10.4236/jsea.2010.33034
Abstract: The establishment of an existing practice scenario was an essential component in providing a basis for further research in the area of COTS software acquisition within the organisation. This report details the identification of means of describing the existing practice of software acquisition within an organisation and identification of models that could be used to present this view. The chosen best practices descriptions for the idealized model were maturity models, including SA-CMM, CMMI-ACQ, and ISO/IEC 12207. This report describes these models briefly and then describes the process of identifying the requirements for idealizing these maturity models into process frameworks that could be identified to actually business process models from a real organisation in order to identify gaps and optimizations within the organisation’s realization of the best practices model. It also identified the next steps in identification of the theoretical best practice framework, which will involve translation of the model to YAWL Petri nets and simulation of the process in order to identify potential modelling flaws or issues with framework efficiency. Implications of the currently ongoing research include the identification and correspondence of specific tasks and activities from ITIL and CoBiT frameworks with the generic key process areas of software acquisition frameworks and identification of sufficiently detailed structural framework models for each level in order to identify appropriate frameworks for application even in cases where these frameworks were not explicitly identified by the organisation or the researcher.
Identifying Reading Preferences of Secondary School Students  [PDF]
Irshad Hussain, Parveen Munshi
Creative Education (CE) , 2011, DOI: 10.4236/ce.2011.25062
Abstract: The present study was conducted with the main purpose of identifying reading preferences of secondary school students and their related issues. The study was conducted on a total of 387 secondary school students of academic session 2010-12 in District Bahawalpur of Pakistan. Qualitative and quantitative data were collected through questionnaire and interview schedule respectively by adopting survey method. The study concluded that secondary school students preferred to read books, magazines, poetry and other reading materials to get pleasure through edutainment, kill their leisure time during holidays and/ or at weekends and for their emotional gratification. The respondents preferred to read books on religion, literature, novels, magazines and story & romantic books. They were keen on reading newspaper, traveling story and scientific books, autobiographies and literature –poetry and drama. They faced problems in reading and setting their reading preferences like high costs of the books, context and circumstances, availability of books, time and their time management ability, examinations & academic workload, lack of guidance, personal interest, and their study circles or groups.
Symphysis pubis dysfunction in pregnancy-fact or fantasy?  [PDF]
Papa Essilfie, M. Hussain
Open Journal of Obstetrics and Gynecology (OJOG) , 2013, DOI: 10.4236/ojog.2013.31A035

Symphysis pubis dysfunction (SPD) has been recognized as an Obstetric condition since the time of Hippocrates. In spite of this long history, many medical staff remain unaware of the condition. Women continue to suffer from symphysis pubis pain with considerable reduction in quality of life during pregnancy. In recent years there has been an upsurge in the reported incidence of SPD partly due to gross previous under recognition. The increase in incidence has also been attributed to the sudden discovery of the SPD phenomenon by some women who have no symptoms but are generally fed up with being pregnant. The allegation has been that these women use SPD as a reason to request for induction of labour.

Highly Efficient, One Pot Synthesis and Oxidation of Hantsch 1,4-Dihydropyridines Mediated by Iodobenzene Diacetate (III) Using Conventional Heating, Ultrasonic and Microwave Irradiation  [PDF]
Khalid Hussain, Deepak Wadhwa
International Journal of Organic Chemistry (IJOC) , 2014, DOI: 10.4236/ijoc.2014.43019
Abstract: A mild, general, convenient, and efficient one-pot synthesis of 4-arylpyridines (4) is described using conventional heating, ultrasound and microwave irradiation. Aryl aldehydes (2) were efficiently condensed with ethylacetoacetate (1) and ammonium acetate in acetonitrile to give dihydropyridine intermediates (4). The latter underwent a smooth Iodobenzene Diacetate (III) mediated aromatization reaction in the same pot to afford 4-arylpyridines (4) in good to excellent yields.
Page 1 /2669
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.