Indian Astronomy: the missing link in Eurocentric history of Astronomy     

Shirin Haque  Deva Sharma 《Cultural Studies of Science Education》2016,11(2):515-526

A comprehensive history of Astronomy should show in reasonable chronological order, the contributions from wherever they arise in the world, once they are reliably documented. However, the authors note that consistently, the extremely rich contributions from Ancient Indian scholars like Aryabatha and Bhramagupta are omitted in Eurocentric education and syllabi. It is speculated whether religious underpinnings could have been responsible for its suppression in the past. An appeal is made to represent the history of Astronomy in Eurocentric versions, to be inclusive of Indian Astronomy as accurately and completely as possible in science education.  相似文献   

Paulo Freire’s critical and dialogic pedagogy and its implications for the Bahraini educational context     

Nina Abdul Razzak 《Educational Philosophy and Theory》2020,52(9):999-1010

Abstract

This paper is a conceptual analysis in methodology. The purpose it fulfils is that of analysing the critical and dialogic pedagogy of Paulo Freire, to arrive at implications of Freire’s philosophy and approach for the current educational context of the Kingdom of Bahrain. The Bahraini context is currently one of major economic, social, and educational reforms. Despite several reform initiatives, however, schools in Bahrain are still not advancing as they should be and deficiencies continue to exist in students’ development of higher-order thinking skills, such as critical thinking, problem-solving, and analysis. Among the implications made by this study are ones related to: teaching and learning practices within a classroom, cultivation of 21st Century skills, curriculum development and planning, and the role played by the teacher. The paper ends with a number of significant recommendations for teachers and policy-makers, which can enhance education in Bahrain and help it progress faster. These recommendations can also prove to be useful to other parallel contexts regionally and internationally.  相似文献   

A comparative study of conventional and supercritical fluid extraction methods for the recovery of secondary metabolites from <Emphasis Type="Italic">Syzygium campanulatum</Emphasis> Korth     

Abdul Hakeem Memon  Mohammad Shahrul Ridzuan Hamil  Madeeha Laghari  Fahim Rithwan  Salman Zhari  Mohammed Ali Ahmed Saeed  Zhari Ismail  Amin Malik Shah Abdul Majid 《Journal of Zhejiang University. Science. B》2016,17(9):683-691

Syzygium campanulatum Korth is a plant, which is a rich source of secondary metabolites (especially flavanones, chalcone, and triterpenoids). In our present study, three conventional solvent extraction (CSE) techniques and supercritical fluid extraction (SFE) techniques were performed to achieve a maximum recovery of two flavanones, chalcone, and two triterpenoids from S. campanulatum leaves. Furthermore, a Box-Behnken design was constructed for the SFE technique using pressure, temperature, and particle size as independent variables, and yields of crude extract, individual and total secondary metabolites as the dependent variables. In the CSE procedure, twenty extracts were produced using ten different solvents and three techniques (maceration, soxhletion, and reflux). An enriched extract of five secondary metabolites was collected using n-hexane:methanol (1:1) soxhletion. Using food-grade ethanol as a modifier, the SFE methods produced a higher recovery (25.5%?84.9%) of selected secondary metabolites as compared to the CSE techniques (0.92%?66.00%).  相似文献   

Head Teachers' Perspectives on School Drop-Out in Secondary Schools in Rural Punjab,Pakistan     

Abdul Waheed Mughal  Jo Aldridge 《Educational Studies A Journal of the American Educational Studies Association》2017,53(4):359-376

This study investigates head teachers' perspectives of the school dropout problem at public secondary schools in rural Punjab, Pakistan. The study is based on qualitative methods and included interviews to collect primary data. Sixteen districts of the Punjab where secondary school dropout rate is above 20% were purposively selected for the study. The findings indicate that—other than some socioeconomic and individual factors—different exam patterns at primary, elementary, and secondary levels; easy promotion policy in early classes; English medium syllabus; substandard educational background of students; high failure rate in class 9; and top-down pressures on teachers to perform nonacademic duties are major causes of children dropping out from school. The findings of the study suggest that only through implementation of a socio-culturally compatible syllabus—a corresponding examination system for all levels—allowing students to repeat class 9 in case they fail, setting teachers free from nonteaching duties and providing extra financial support to economically underprivileged students can significantly prevent school dropout at secondary level. The study further argues that easy promotion policy in early classes may retain more children at school but it causes high rates of dropout from secondary classes.  相似文献   

Student attrition and academic and social integration: Application of Tinto’s model at the University of Papua New Guinea   总被引：1，自引：0，他引：1  

Md. Abdul Mannan 《Higher Education》2007,53(2):147-165

This study explores the compensatory relationship between academic and social integration, and also assesses the differences of group specific academic and social integration in a small university in the Pacific as perceived by the students. In order to reduce attrition through developing a relevant retention policy, a comprehensive group specific assessment of academic and social integration was necessary. Using the Tinto model and research instruments, an institutional academic and social integration assessment instrument was developed for measuring perceived integration climate for specific subject and year of studies groups. An important outcome of this study was the existence of a compensatory relationship between academic and social integration. Differences were found between perceived ratings of student groups for both academic and social integration.  相似文献   

Endophytes from medicinal plants and their potential for producing indole acetic acid,improving seed germination and mitigating oxidative stress     

Abdul Latif Khan  Syed Abdullah Gilani  Muhammad Waqas  Khadija Al-Hosni  Salima Al-Khiziri  Yoon-Ha Kim  Liaqat Ali  Sang-Mo Kang  Sajjad Asaf  Raheem Shahzad  Javid Hussain  In-Jung Lee  Ahmed Al-Harrasi 《Journal of Zhejiang University. Science. B》2017,18(2):125-137

Medicinal plants have been used by marginal communities to treat various ailments. However, the potential of endophytes within these bio-prospective medicinal plants remains unknown. The present study elucidates the endophytic diversity of medicinal plants (Caralluma acutangula, Rhazya stricta, and Moringa peregrina) and the endophyte role in seed growth and oxidative stress. Various organs of medicinal plants yielded ten endophytes, which were identified as Phoma sp. (6 isolates), Alternaria sp. (2), Bipolaris sp. (1), and Cladosporium sp. (1) based on 18S rDNA sequencing and phylogenetic analysis. The culture filtrates (CFs; 25%, 50%, and 100% concentrations) from these endophytes were tested against the growth of normal and dwarf mutant rice lines. Endophytic CF exhibited dose-dependent growth stimulation and suppression effects. CF (100%) of Phoma sp. significantly increased rice seed germination and growth compared to controls and other endophytes. This growth-promoting effect was due to the presence of indole acetic acid in endophytic CF. The gas chromatography/mass spectrometry (GC/MS) analysis showed the highest indole acetic acid content ((54.31±0.21) μmol/L) in Bipolaris sp. In addition, the isolate of Bipolaris sp. exhibited significantly higher radical scavenging and anti-lipid peroxidation activity than the other isolates. Bipolaris sp. and Phoma sp. also exhibited significantly higher flavonoid and phenolic contents. The medicinal plants exhibited the presence of bio-prospective endophytic strains, which could be used for the improvement of crop growth and the mitigation of oxidative stresses.  相似文献   

Assessment of the phase synchronization effect in modal testing during operation     

Zhi Chao Ong  Hong Cheet Lim  Shin Yee Khoo  Zubaidah Ismail  Keen Kuan Kong  Abdul Ghaffar Abdul Rahman 《浙江大学学报(A卷英文版)》2017,18(2):92-105

The impact-synchronous modal analysis (ISMA), which uses impact-synchronous time averaging (ISTA), allows modal testing to be performed during operation. ISTA is effective in filtering out the non-synchronous cyclic load component, its harmonics, and noises. However, it was found that at operating speeds that coincide with the natural modes, ISMA would require a high number of impacts to determine the dynamic characteristics of the system. This finding has subsequently reduced the effectiveness and practicality of ISMA. Preservation of signatures during ISTA depends on the consistency of their phase angles on every time block but not necessarily on their frequencies. Thus, the effect of phase angles with respect to impact is seen to be a very important parameter when performing ISMA on structures with dominant periodic responses due to cyclic load and ambient excitation. The responses from unaccounted forces that contain even the same frequency as that contained in the response due to impact are diminished with the least number of impacts when the phase of the periodic responses is not consistent with the impact signature for every impact applied. The assessment showed that a small number of averages are sufficient to eliminate the non-synchronous components with 98.48% improvement on simulation and 95.22% improvement on experimental modal testing when the phase angles with respect to impact are not consistent for every impact applied.  相似文献   

A school‐based violence prevention model for at‐risk eighth grade youth     

Stephen A. Rollin  Cheryl Kaiser‐Ulrey  Isabelle Potts  Alia Haque Creason 《Psychology in the schools》2003,40(4):403-416

This study examined the effectiveness of a school and community‐based violence prevention program for at‐risk eighth‐grade students in three public schools in Florida. School officials matched intervention students with community‐based mentors in an employment setting to allow targeted youth to explore careers and receive one‐on‐one intervention from an adult mentor. Intervention students were compared to a control group of students not receiving mentorship services. This study used MANOVA and t‐test analyses to examine six outcomes measured: (1) unexcused absences; (2) number of in‐school suspensions; (3) number of days of in‐school suspensions; (4) number of out‐of‐school suspensions; (5) number of days of out‐of‐school suspensions; and (6) total number of infractions committed on school property. The findings suggested that mentored students, as compared to control group students, had significant reductions in total number and days of suspensions, days of sanction, and infractions committed on school property. © 2003 Wiley Periodicals, Inc. Psychol Schs 40: 403–416, 2003.  相似文献   

Assessing basic competencies: A practical methodology     

A. M. R. Chowdhury  Linda Ziegahn  Najmul Haque  Gajendra L. Shrestha  Zahin Ahmed 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1994,40(6):437-454

Following the 1990 World Conference on Education for All in Jomtien, Thailand, many developing countries are making efforts to achieve basic education for all by the year 2000. However, when it comes to measuring educational progress, there are few methodologies that can overcome the many problems and controversies in this area. This paper describes a serviceable methodology for measuring basic education (competencies in reading, writing and arithmetic, as well as selected life skills), which has proven to be simple, inexpensive and rapid. This approach, termed the Assessment of Basic Competencies (ABC), has been tested in Bangladesh on 2,100 children between the ages of 11 and 12. The results are discussed here. This methodology may be of use to education programme managers in other developing countries.

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Zusammenfassung Nach der Weltkonferenz über Bildung für Alle 1990 in Jomtien, Thailand, bemühen sich viele Entwicklungsländer um eine Grundbildung für alle bis zum Jahr 2000. Wenn man jedoch die Methoden zur Bemessung der Leistungen der Schüler betrachtet, gibt es nur wenige Methodologien, die die zahlreichen Probleme und Kontroversen auf diesem Gebiet bewältigen können. Dieser Artikel beschreibt eine praktische Methodologie zur Bewertung der Grundbildung (Lese- und Schreibfähigkeiten, arithmetische Fähigkeiten sowie ausgewählte zum Leben notwendige Fahigkeiten), die sich als einfach, preiswert und schnell erwiesen hat. Dieser Ansatz wurde in Bangladesh an 2.100 Kindern zwischen 11 und 12 Jahren getestet. Das Ergebnis wird in diesem Artikel erortert. Diese Methodologie könnte Bildungsprogrammleitern in anderen Entwicklungsländern von Nutzen sein.

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Résumé En réponse au Congrès Mondial sur l'Education pour Tous qui a eu lieu en 1990 à Jomtien, Thaïlande, de nombreux pays en voie de développement multiplient leurs efforts pour réaliser l'éducation de base de tous d'ici l'an 2000. Quand il s'agit pourtant d'évaluer le progrès pédagogique, rares sont les méthodologies pouvant faire face aux nombreux problèmes et controverses existant dans ce domaine. Cet article décrit une méthode efficace pour évaluer l'éducation de base (compétences en écriture, lecture et arithmétique de même que certaines aptitudes à la vie pratique), qui s'est révélée simple, économique et rapide. Ce procédé, appelé Evaluation des Compétences de Base (ABC — Assessment of Basic Competencies), a fait l'objet d'un essai au Bangladesh auprès de 2100 enfants entre 11 et 12 ans, dont les résultats sont discutés ici. Cette méthode pourrait être intéressante aux organisateurs de programmes d'éducation dans d'autres pays en développement.

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Medieval Islamic Medicine     

Abdul Nasser Kaadan 《Al-Masaq: Islam & the Medieval Mediterranean》2011,23(2):147-149

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