21 research outputs found

    The Role of Transformational Leadership in Achieving Core Competencies

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    ""يهدف البحث معرفة السلوك القيادة التحويلية السائدة لدى رؤساء الاقسام العاملين في جامعتي القاسم الخضراء وبابل"،"ومعرفة مستوى القدرات الجوهرية المتميزة وكذلك معرفة السلوك القيادة التحويلية السائد لدى العينة المبحوثة ودورها في تحقيق القدرات الجوهرية المتميزة (السائدة) واستخدم الباحث المنهج الوصفي في صورة دراسة مسحية وذلك لملاءمته لطبيعة وأهداف البحث اذ شارك في هذا البحث (80) موظفا وموظفة من رؤساء الاقسام لكلا الجامعتين الانف ذكرهما اذ أجابـوا عـلى مقياس القيادة التحويلية،"ومقياس القدرات الجوهرية المتميزة بعد إيجاد معاملات الصدق والثبات لهما. وقد أظهرت النتائج ان مستوى القدرات الجوهرية المتميزة كان متوسطاً بشكل عام." وجاء مجال قوة الموارد التنظيمية والمادية أولاً في الترتيب"، تلاه مجال كفاءة رأس المال البشري وأخيراً مجال القيادة الاستراتيجية. وأظهرت النتائج كذلك أن درجة ممارسة المدربين للقيادة التحويلية كانت متوسطة بشكل عام."وكان أكثر مجالات القيادة التحويلية الممارسة هي مجال الاستثارة الفكرية، تلاه التأثير المثالي، ثم الدافعية الإلهامية وأخيراً الاعتبارات الفردية. واوصى الباحث جملة توصيات كان اهمها" (تعزيز استخدام القيادة التحويلية بين مختلف فئات العاملين في المجال التعليمي،"على إدارة الجامعات زيادة التنظيم الاداري وتذليل المعوقات التي تحول دون تحقيق القدرات الجوهرية المتميزة"،"عقد دورات تدريبية للموظفين في مختلف المستويات الإدارية من أجل تنمية مهارات القيادة التحويلية لديهم، وتعزيز ممارستها في مجال العمل إجراء مزيد من الدراسات التي تتناول السلوك القيادي التحويلي في مختلف المنظمات التعليمية والتربوية  ومختلف مراحل التعليم والمستويات الإدارية،" وتأثيره على المتغيرات الإدارية مثل الولاء التنظيمي، والإبداع الاداري، وإدارة الجودة الشاملة، وغيرها من المتغيرات"."Search goal to Knowledge of Behavior The prevailing transformational leadership of department heads at Al-Qasim Al-Khadra and Babel Universities", knowledge of the level of core competencies","and knowledge of behavior. The transformational leadership in the sample and its role in achieving the core competencies"."The researcher used the descriptive approach in the form of a survey The nature and objectives of the study. In this study", 80 employees and departmental staff members from both universities participated in the study. "They responded to the measure of transformational leadership and the measure of intrinsic capabilities after finding the coefficients of honesty and consistency". The results showed that the level of significant core competencies was generally average. The strength of organizational and material resources came first in the ranking, followed by the field of human capital efficiency and, finally, "strategic leadership. The results also showed that the degree of exercise of trainers for transformational leadership was generally moderate"."The most areas of transformational leadership practice were the sphere of intellectual arousal", "followed by the ideal influence, then the inspirational motivation, and finally the individual considerations"."The results also showed a positive role for the transformative leadership behavior of department heads in achieving the core competencies","especially the dimensions of inspirational motivation", intellectual stimulation, and ideal influence, which contributed to the interpretation of 55.8% of the core capacities, particularly the organizational and material resources strength, human capital efficiency, Strategic Leadership

    Environment acceptability as building material from organic contaminants leaching behavior in sludge

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    Sludge is one of the major hazardous waste generated from industrial activities. Cost-effective remediation method and disposal has become the main issues worldwide. Many types of contaminants are produced from sludge, in which organic contaminants and heavy metals are the most toxic and concerned. Leaching heavy metals in solidification and stabilization (S/S) methods were mostly discussed in the literature and very limited to organic contaminants. This chapter focuses on building material’s environmental acceptability based on organic contaminants’ leaching behaviour in treated sludge by S/S method. The leaching during the use and the end of life phase is one of the issues in reusing the treated sludge. Studies on the potential sludge measurement as a raw material in the building material production are discussed further in this chapter. Specifically, types of organic contaminants in sludge, solidification and stabilization of organic contaminants from sludge and environment acceptability of sludge as building material are the subtopics in this chapter

    Configuration of Physical and Mechanical Characteristics of Fly Ash and Bottom Ash Replacement in Self-compacting Concrete (SCC)

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    Generally, fly ash (FA) and bottom ash (BA) are produced by the process of combustion in coal-fired power plants that considered as waste which includes heavy metals in its composition. Moreover, these metals are harmful to both the atmosphere and human health. Apparently, for these ashes, treatment methods are available, and one of them is the replacement of FA and BA as concrete materials. Therefore, the primary purposed of this paper was to investigate the properties and characteristics of self-compacted concrete (SCC) incorporated with fly ash and bottom ash. SCC was developed with different percentages of FA and BA as a replacement for cement and sand with ratios of 10, 20 and 30% respectively. The properties tested were slump flow and t500 test, sieve segregation, and J-ring test for physical characteristic. Next, density, compressive power, and water absorption were examined to determine its mechanical characteristic. The results revealed that both physical and mechanical characteristics with 20% of FA and BA in SCC were suitable to be defined as SCC. A comparable set of data in compressive strength were observed, and densities have been established as standard weight concrete. In conclusion, this research demonstrates that FA and BA material are possibly be used as a new material for concrete production

    Design Of Compact Filtenna Based On Capacitor Loaded Square Ring Resonator For Wireless Applications

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    This paper proposes and demonstrates a compact integrated filtering antenna built on a square ring resonator coupled with a capacitors loaded microstrip line filter. A microstrip filter module is connected to feeding line of the conventional patch without adding extra space. Thus, the combined configuration possesses radiating and filtering functions simultaneously. The proposed filtenna has a fractional bandwidth (FBW) of 3% at center frequency 2.4 GHz with 2.5 dB of maximum gain. The obtained result shows that the proposed design shows good stopband gain rejection, good selectivity at band edges, and smooth passband gain. Furthermore, the introduced filtenna has advantages of a small size and a simple structure, which makes it ideal for interconnection with different wearable devices operating within 2.4 GHz wireless system range

    Design of filter integrated SPDT switch using capacitor loaded ring resonator with high isolation

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    A reconfigurable filter integrated single-pole double-throw (SPDT) switch (FIS) based on capacitor loaded ring resonators is presented in this paper. The design incorporates two PIN diodes between two symmetric square ring resonators. The ring resonators can be switched between all stop and bandpass responses, by adjusting the state of the PIN diodes, allowing the corresponding signal path to be in OFF-state with high isolation or ON-state with bandpass filter response. For demonstration, filtering switch was fabricated and measured for 2.4 GHz applications. The measurement results featured an ON-state low insertion loss of −2.1 dB and port-to-port isolation of −52 dB at the band of interest, and good consistency is achieved between simulated and measured result

    Convalescent plasma in patients admitted to hospital with COVID-19 (RECOVERY): a randomised controlled, open-label, platform trial

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    SummaryBackground Azithromycin has been proposed as a treatment for COVID-19 on the basis of its immunomodulatoryactions. We aimed to evaluate the safety and efficacy of azithromycin in patients admitted to hospital with COVID-19.Methods In this randomised, controlled, open-label, adaptive platform trial (Randomised Evaluation of COVID-19Therapy [RECOVERY]), several possible treatments were compared with usual care in patients admitted to hospitalwith COVID-19 in the UK. The trial is underway at 176 hospitals in the UK. Eligible and consenting patients wererandomly allocated to either usual standard of care alone or usual standard of care plus azithromycin 500 mg once perday by mouth or intravenously for 10 days or until discharge (or allocation to one of the other RECOVERY treatmentgroups). Patients were assigned via web-based simple (unstratified) randomisation with allocation concealment andwere twice as likely to be randomly assigned to usual care than to any of the active treatment groups. Participants andlocal study staff were not masked to the allocated treatment, but all others involved in the trial were masked to theoutcome data during the trial. The primary outcome was 28-day all-cause mortality, assessed in the intention-to-treatpopulation. The trial is registered with ISRCTN, 50189673, and ClinicalTrials.gov, NCT04381936.Findings Between April 7 and Nov 27, 2020, of 16 442 patients enrolled in the RECOVERY trial, 9433 (57%) wereeligible and 7763 were included in the assessment of azithromycin. The mean age of these study participants was65·3 years (SD 15·7) and approximately a third were women (2944 [38%] of 7763). 2582 patients were randomlyallocated to receive azithromycin and 5181 patients were randomly allocated to usual care alone. Overall,561 (22%) patients allocated to azithromycin and 1162 (22%) patients allocated to usual care died within 28 days(rate ratio 0·97, 95% CI 0·87–1·07; p=0·50). No significant difference was seen in duration of hospital stay (median10 days [IQR 5 to >28] vs 11 days [5 to >28]) or the proportion of patients discharged from hospital alive within 28 days(rate ratio 1·04, 95% CI 0·98–1·10; p=0·19). Among those not on invasive mechanical ventilation at baseline, nosignificant difference was seen in the proportion meeting the composite endpoint of invasive mechanical ventilationor death (risk ratio 0·95, 95% CI 0·87–1·03; p=0·24).Interpretation In patients admitted to hospital with COVID-19, azithromycin did not improve survival or otherprespecified clinical outcomes. Azithromycin use in patients admitted to hospital with COVID-19 should be restrictedto patients in whom there is a clear antimicrobial indication

    Optimization for Epoxidation of Malaysian Jatropha curcas Oil Based Trimethylolpropane Ester Biolubricant

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    Epoxidized Jatropha curcas-based trimethylolpropane triester (ETMPJO) was prepared by the in-situ epoxidation reaction of trimethylolpropane ester (TMPJO) catalyzed by hydrogen peroxide (H2O2) in the presence of formic acid. The epoxidation process was optimized through the variable parameters such as hydrogen peroxide to tmpjo molar ratio, formic acid to TMPJO molar ratio, temperature and time of the epoxidation reaction. The results showed the epoxidation optimal condition was achieved at the molar ratio of TMPJO to H2O2 and formic acid of 1 : 2.0 and 1 : 2.5, temperature of 50 °C for 2 h, respectively. The resultant ETMPJO was characterized by using fourier transformation infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopies and gas chromatography analysis. The FTIR spectrum of ETMPJO showed the appearance of peaks at 825 and 908 cm–1 for the epoxy functional group. ¹H NMR spectrum showed a chemical shift at 2.88 ppm of the epoxide group protons. 13C NMR spectrum showed the chemical signal of carbon epoxide group at 54–57 ppm. At the optimal condition, the resultant ETMPJO obtained was at 91% yield with comparatively high relative conversion oxirane (RCO) of 87%. With high oxygen oxirane content (OOC) of 4.38, ETMPJO owns a good characteristic for an intermediate compound for possible further conversion to produce high-end products. Moreover, its physiochemical and lubrication characteristics indicated that ETMPJO is plausible to be used as biolubricants for industrial application

    Adsorption of chlorine from drinking water by granular activated carbon

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    The effects of GAC dosage, contact time, agitation speed and the initial concentration of free chlorine were investigated at the room temperature ranges between 23-27˚C with a constant pH of 7.0±0.10. The statistical optimization of the experimental condition was carried out using Central Composite Design (CCD) to develop the regression models for the optimum adsorption process condition. The study was furthered to determine the interaction between the parameters involved. This study also compared the adsorption of chlorine using acid washed GAC and non-acid washed GAC. The adsorption study has demonstrated that the highest removal of free chlorine using acid washed GAC is 55% and for non-acid washed GAC is 85%. Furthermore, it was determined that the optimum conditions for maximum removal of free chlorine was for acid washed GAC, pH (7.0±0.10), agitation speed (100 rpm), contact time (50 minutes) and GAC dosage (1g/L) and for non-acid washed GAC, pH (7.0±0.10), agitation speed (300 rpm), contact time (10 minutes) and GAC dosage (1 g/L). It was also demonstrated that non-acid washed GAC has higher adsorption capacity (0.12 mg/g) whereas acid washed GAC has a lower adsorption capacity of (0.021 mg/g). Therefore, it can be concluded that the residual chlorine from potable water is better removed by the non-acid washed GAC due to the larger surface area in comparison to the acid washed GAC

    Characterization of Fertility Clinic Attendees in the Abu Dhabi Emirate, United Arab Emirates: A Cross-Sectional Study

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    This study describes the primary and secondary infertility in patients attending fertility clinics and reports factors associated with primary infertility. A cross-sectional survey was conducted in two fertility clinics in Abu Dhabi Emirate, United Arab Emirates (UAE) between December 2020 and May 2021. The collected information covered sociodemographic, lifestyle, medical, and fertility-related characteristics. The mean age and age at marriage (±SD) of the 928 patients were 35.7 (±6.7) and 25.2 (±6.3) years, respectively. Of the total, 72.0% were obese and overweight, 26.6% reported a consanguineous marriage, and 12.5% were smokers. Secondary infertility (62.5%) was more frequent than primary infertility (37.5%). Primary infertility was inversely associated with age (aOR, 0.94, 95% CI: 0.91–0.98) and not being overweight (aOR, 0.6, 95% CI: 0.4–0.9) while positively associated with a nationality other than Middle Eastern nationality (aOR, 1.9, 95% CI: 1.1–3.3), married for ≤5 years (aOR, 6.0, 95% CI: 3.9–9.3), in a nonconsanguineous marriage (aOR, 2.4, 95% CI: 1.5–3.9), having a respiratory disease (aOR, 2.3, 95% CI: 1.1–4.6), an increased age at puberty (aOR, 1.2, 95% CI: 1.0–1.3), and self-reported 6–<12 months (aOR, 2.4, 95% CI: 1.2–5.1) and ≥12 months (aOR, 3.4, 95% CI: 1.8–6.4) infertility. Patients with primary infertility were more likely to be diagnosed with infertility of an ovulation, tubal, or uterine origin (aOR, 3.9, 95% CI: 1.9–7.9). Secondary infertility was more common than primary infertility. Several preventable fertility-related risk factors including overweight, smoking, and diabetes were found to be common among the fertility clinic attendees
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