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Search Results: 1 - 10 of 1577 matches for " May Hamdan "
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A proper subclass of Maclane's class ° ’
May Hamdan
International Journal of Mathematics and Mathematical Sciences , 1999, DOI: 10.1155/s0161171299224635
Abstract: The MacLane's class ° ’ of analytic functions is the class of nonconstant analytic functions in the unit disk that have asymptotic values at a dense subset of the unit circle. In this paper, we define a subclass ¢ of ° ’ consisting of those functions that have asymptotic values at a dense subset of the unit circle reached along rectifiable asymptotic paths. We also show that the class ¢ is a proper subclass of ° ’ by constructing a function f ¢ ° ’ that admits no asymptotic paths of finite length.
Spin-Orbit Electronic Structure of the ScBr Molecule  [PDF]
Alaa Hamdan, Mahmoud Korek
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.210146
Abstract: A theoretical investigation of the spin-orbit electronic states of the molecule ScBr has been performed via CASSCF and MRCI (single and double excitations with Davidson correction) calculations. Spin-orbit effects have been introduced through semi-empirical spin orbit pseudo-potential for scandium while they have been neglected for bromine. Potential energy curves for 42 electronic states in the representation Ω(±) have been determined along with the corresponding spectroscopic constants. The comparison of the present results with those available in the literature shows a good agreement. New results have been investigated in present work for 30 electronic states in the representation Ω(±) for the first time.
Psychosocial and Sociodemographic Predictors of Depression among Older Persons in Jordan  [PDF]
Ayman Hamdan-Mansour
Open Journal of Nursing (OJN) , 2016, DOI: 10.4236/ojn.2016.67056
Abstract: The average annual growth rate for the ageing population is increasing considerably. The purpose of this study is to examine the psychosocial predictors of depression among older persons in Jordan. Methods: A quantitative approach using cross-sectional, descriptive-correlational design was used to carry out on a nationally representative, stratified multistage clustered area probability sample of non-institutionalized adults (aged ≥ 60 years). Data collected using self-report (structured format) of data collection. Data collected in regards to depression, social support, life satisfaction, and psychological distress. Results: About 55.5% of the participants have none to slight depressive symptoms, 22% of them have mild depressive symptoms, 17.3% of them have moderate depressive symptoms, and only 5.2% of them have severed depressive symptoms. Older persons have moderate levels of life satisfaction, perceived social support and psychological distress. Type of diagnosis was not a significant predictor of depressive symptoms as it was in model 1 while working status and marital status remained significant predictors. In addition, perceived social support total (β = -1.98, 0.016), psychological distress (β = 0.465, <0.001), and life satisfaction (β = -0.284, <0.001) were significant predictors of depressive symptoms. Conclusion: Effective, community-level primary mental health care for older people is crucial, and its recommended to equally focus on the long-term care of older adults suffering from mental health problems, as well as to provide caregivers with education, training and support.
Larngeal Manifestations of Relapsing Polychondritis  [PDF]
Abdul Latif Hamdan, Doja Sarieddine
Open Journal of Rheumatology and Autoimmune Diseases (OJRA) , 2013, DOI: 10.4236/ojra.2013.32016

The incidence of Relapsing Polychondritis is estimated to be 3.5 cases per million with only 600 cases being reported in the world. It can affect any age ranging from 5 to 84 years with predominance in the fourth and fifth decade. Male to female ratio varies from 1:1 to 1:3. It is believed to be an immunologic reaction to collagen Type II which is predominantly presented in the cartilaginous structures of the body and in the eye. The diagnosis is based on the presence of three or more clinical signs, one clinical sign in addition to histological confirmation, or involvement of two or more sites with a favorable response to treatment based on Mc Adam diagnostic criteria. The otolaryngologic manifestations of RP span the ears, nose, larynx and tracheobronchial tree. The symptoms include change in voice quality, respiratory discomfort, stridor, dyspnea, cough, chocking, anterior neck tenderness mainly over the thyroid cartilage and cricoid cartilages, aspiration and difficulty in swallowing. The laryngeal manifestations should be evaluated using high resolution computerized tomography, Magnetic resonance imaging, pulmonary function testing, plain radiography and pulmonary function testing.

Social Support and Adolescents’ Alcohol Use: An Integrative Literature Review  [PDF]
Ayman M. Hamdan-Mansour
Health (Health) , 2016, DOI: 10.4236/health.2016.812120
Abstract: The trajectories at treatment of alcohol use and abuse among adolescents have become a major health concern. The purpose of this paper was to discuss alcohol use and abuse among adolescents and its relationship to social support. Integrative review has been utilized to address the issue. There is a presentation of findings from research examining social support concepts and their relationship to adolescents’ alcohol use and abuse. Treatment requires awareness of underlying causes in order to establish effective treatment approaches. Determining these underlying causes requires adequate knowledge of family, peers, and societal influences on adolescents’ alcohol use and abuse. Health professionals across disciplines have an important role in implementing multidisciplinary interventions. The purpose of this paper was to discuss alcohol use and abuse among adolescents and its relationship to social support. Results, controversies and concerns raised by the reported results are addressed. Implications for future research are delineated.
High-Order Finite Difference Schemes for the First Derivative in Von Mises Coordinates  [PDF]
S. O. Alharbi, M. H. Hamdan
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.43059
Abstract: Third- and fourth-order accurate finite difference schemes for the first derivative of the square of the speed are developed, for both uniform and non-uniform grids, and applied in the study of a two-dimensional viscous fluid flow through an irregular domain. The von Mises transformation is used to transform the governing equations, and map the irregular domain onto a rectangular computational domain. Vorticity on the solid boundary is expressed in terms of the first partial derivative of the square of the speed of the flow in the computational domain, and the schemes are used to calculate the vorticity at the computational boundary grid points using up to five computational domain grid points. In all schemes developed, we study the effect of coordinate clustering on the computed results.
Linezolid versus Vancomycin for the Treatment of Methicillin-Resistant Staphylococcus aureus in Hospital-Acquired, Ventilator-Associated, and Healthcare-Associated Pneumonia at Tertiary Care Hospital  [PDF]
Eman Mohammad Hamdan, Majda AL-Attas
Advances in Infectious Diseases (AID) , 2017, DOI: 10.4236/aid.2017.71002
Abstract: Aim: To evaluate morbidity and mortality rate, clinical cure rate and cost of linezolid versus vancomycin in patients who have hospital-acquired pneumonia (HAP), ventilator-associated pneumonia (VAP) or Healthcare-associated pneumonia (HCAP) caused by methicillin-resistant Staphylococcus aureus (MRSA). Methods: Retrospective analysis data. Data were collected for adult patients admitted to King Faisal Specialist Hospital and Research Centre-Jeddah (KFSH & RC-J) from January 2010 to May 2015. Method: A total of 88 patients with HAP, VAP and HCAP caused by MRSA treated with vancomycin (IV) or linezolid (IV or PO) either as empirically or directed therapy ≥ 7 days. They are retrospectively evaluated and analyzed. The primary end points are morbidity and mortality rate as well as clinical cure rate. The secondary end point is the cost analysis for each medication. Results: A total of 40 patients (ICU, n = 13 (32.5% and non ICU, n = 27 (67.5%)) were included in the study. Among vancomycin, n = 21 (52.5%); age (54.95 ± 18.255) and linezolid, n = 19 (74.5%); age (48.684 ± 25.593), there was no statistical differences in mortality and morbidity rate (P = 0.375). Clinical cure rate (fever improvement, 12 (57.1%) vs 12 (63.2%); P = 0.698, leukocytosis improvement, 15 (71.4%) vs 14 (73.7%); P = 0.873, purulent sputum improvement, 6 (28.6%) vs 4 (21.1%); P = 0.429, dyspnea improvement, 8 (38.1%) vs 3 (15.8%); P = 0.115,cough improvement 4 (19.0%) vs 4 (21.1%); P = 0.592, microbiological eradication of MRSA from sputum culture, 2 (9.5%) vs 6 (31.6%); P = 0.089 and improvement of radiographic finding (pulmonary infiltration), 17 (81.0%) vs 16 (84.2%); P = 0.559) of vancomycin vs linezolid, respectively. The cost analysis in the treatment of MRSA pneumonia with linezolid is statistical significantly higher than vancomycin. The mean cost of vancomycin = 185.9143 SR and of linezolid = 4547.3684 SR (P < 0.0001) of one patient during the treatment period. Conclusion: There are no statistical differences in mortality and morbidity rate and clinical cure rate between linezolid and vancomycin in the treatment of MRSA in HAP, VAP, and HCAP. However, the cost of linezlid is significantly higher than vancomycin during the treatment period of one patient.
Experienced Teachers Reflecting on Challenging Situations in School  [PDF]
May Britt Postholm
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.79136
Abstract: The aim of this study is to develop an understanding of how teachers in a lower secondary school deal with challenging situations in the classroom and whether or not they experience that they can obtain help in coping with these situations. Three teachers with five to nine years of teaching experience took part in semi-structured interviews. Before the interviews and before they started to write log book entries for fourteen days to document and reflect on these situations as they occurred in their work in school, the teachers were told that they were to focus on what they felt were challenging situations in their practice. The study shows that these three teachers have various experiences of what they find is difficult to tackle, and that these situations are related to experiences they have had before they started in their profession, and to their values and beliefs. The study also shows that there are common situations that the three teachers perceive as difficult. It becomes evident from the analysis of the data material that they think that good relations between teacher and pupils and between pupils themselves, thus a trustful learning environment, are a good foundation from which to learn to deal with challenging situations in the classroom. They also agree that sharing experiences and solving problems together helps them to tackle challenging situations in school. The teachers think that their basic teacher education has had little influence on their school practice, and they emphasise that further education taken either on campus or with school as the learning arena helps them in their daily practice when confronted with challenging situations.
First-Line Drug Resistance Patterns of Mycobacterium tuberculosis Complex Isolates from Re-Treatment Patients from Sudan  [PDF]
Muatsim Ahmed Mohammed Adam, Hamdan Mustafa Hamdan Ali, Eltahir Awad Gasim Khalil
Journal of Tuberculosis Research (JTR) , 2016, DOI: 10.4236/jtr.2016.43012
Abstract: Drug susceptibility testing (DST) plays a pivotal role in TB patients’ management leading to the selection of most effective drugs. This study aimed to determine resistance patterns to first line anti-TB drugs in Mycobacterium tuberculosis isolates from re-treated patients from Sudan. A total of 239 sputum specimens were collected from smear positive re-treatment TB patients during the period from July 2009 to July 2010. Specimens were pre-treated according to Petroff method. The recovered isolates were tested for sensitivity to first line anti-TB drugs by the 1% proportion method. One hundred and forty three (143/239, 59.8%) mycobacterial isolates were successfully recovered. The majority (98.6%, 141/143) of the isolates were Mycobacterium tuberculosis complex strains. Two strains (2/143, 1.4%) were identified as RIF/INH-resistant MOTT, while fifty four isolates (38.3%, 54/141) were MDR. Multi- drug resistant Mycobacterium tuberculosis complex (MDR-TB) among re-treatment patients from national referral centers for tuberculosis diagnosis and management was considerably high in the study isolates.
A starting point of learning to teach science topics at the primary level - The Teacher Education Programme
CHENG May Hung, May
Asia-Pacific Forum on Science Learning and Teaching , 2001,
Abstract: This paper describes the experience of a group of student-teachers in an initial teacher education programme at the Hong Kong Institute of Education. In preparing the student-teachers to teach science, the programme introduced a module on science teaching that included a discussion of the various approaches to teach science and in particular, teaching science with a constructivist view of learning was discussed. The focus of the study is to look at the development of the student-teachers at three phases: before they took the module on science teaching; after they took the module and after their teaching practice period. The student-teachers were interviewed at the three phases and their views on science teaching; feelings about being a science teacher in school and their own experiences in learning to teach were collected and analysed. Drawing on the findings, the paper concludes with the possible factors that influence the development of the student-teachers as they learn to teach.
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