Teachers' peer support: difference between perception and practice

This paper is aimed at exploring teachers’ perceptions and practices of peer support in Bangladeshi primary schools. It also looks into the contrast between the perceptions and practices, and the underlying reasons behind such deviations. The study collects data from teachers who are undergoing a large-scale teacher development project called English in Action. The project provides face-to-face and distance learning support to the teachers, as well as promotes the idea of context-based learning through peer support in both primary and secondary schools in Bangladesh. This study adopted a mixed method approach. The quantitative part looks into teachers’ perceptions and practices in regards to peer support. A close-ended questionnaire was used to understand the extent teachers feel peer support is important and their actual engagement with colleagues for the support activities. Qualitative methods including observations, focus group discussions, and interviews are used to identify the activities that teachers do together with their colleagues in a school and the barriers to such activities. The results show that, teachers define peer support in a specific way and consider it as very important for their professional development. However, their engagement in such activities is restricted by several factors.     

Technology-enhanced learning and research using databases in higher education: the application of the ODAS model

Abstract

Research databases are a significant contributing aspect of modern technology, and, as such, innovation has enhanced learning and research outputs using online databases introduced by authorities in charge of higher education. However, databases have been rarely investigated from the perspective of psychological assessment. Therefore, this research examined databases using structural equation modelling and the Rasch model to explore contributing factors of learning and research in higher education. To measure databases, this research adapted the online database adoption and satisfaction (ODAS) model and analysed the responses of 300 postgraduate students, from a double first class university in Shanghai, collected using a stratified random sample technique. The results of the ODAS model showed that the postgraduate students’ perceived usefulness and ease of use of databases played mediating roles in establishing connections between their computer self-efficacy and intention to use and satisfaction with databases for research and learning. However, the ODAS model also showed that the students’ satisfaction was indirectly explained by their perceived usefulness of databases through ease of use and intention to use. The results of our investigation contribute to a better understanding of the ODAS model and suggest assessment strategies for learning and research through databases for researchers, academicians, and librarians.     

Engaging Indigenous Youth to Revitalize Cree Culture through Participatory Education

Traditional food harvesting is an integral part of culture and food security for Indigenous people in Canada and elsewhere. However, new generations are more inclined to consuming market foods rather than traditional foods. We report on a project in Norway House Cree Nation, northern Manitoba, Canada, to engage youth to express their thoughts about traditional food. The objective was to explore the understanding and values of Indigenous youth about traditional foods and to engage them in revitalizing culture toward long-term food security. We used participatory research approaches and engaged participants in focus group discussions followed by a collaborative art project. Our conceptual framework postulates a cycle whereby food security planning depends on engaging youth and the community, and planning in turn energizes further planning and participatory education. The findings of the article are likely of interest to Indigenous communities dealing with planning and intergenerational issues around food security.     

Student attrition and academic and social integration: Application of Tinto’s model at the University of Papua New Guinea

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.     

Effects of loading rate and hydraulic residence time on anoxic sulfide biooxidation

The optimal operation conditions in an anoxic sulfide oxidizing (ASO) bioreactor were investigated. The maximal removal rates for sulfide and nitrate were found to be 4.18 kg/(m3·d) and 1.73 kg/(m3·d), respectively. The volumetrical volumetric loading rates (LRs) observed through decreasing hydraulic retention time (HRT) at fixed substrate concentration are higher than those by increasing substrate concentration at fixed HRT. The sulfide oxidation in ASO reactor was partially producing both sulfate and sulfur; but the amount of sulfate produced was approximately one third that of sulfur. The process was able to tolerate high sulfide concentration, as the sulfide removal percentage always remained near 99% when influent concentration was up to 580 mg/L. It tolerated relatively lower nitrate concentration because the removal percentage dropped to 85% when influent con- centration was increased above 110 mg/L. The process can tolerate shorter HRT but careful operation is needed. Nitrate conversion was more sensitive to HRT than sulfide conversion since the process performance deteriorated abruptly when HRT was decreased from 3.12 h to 2.88 h. In order to avoid nitrite accumulation in the reactor, the influent sulfide and nitrate concentrations should be kept at 280 mg/L and 67.5 mg/L respectively. Present biotechnology is useful for removing sulfides from sewers and crude oil.     

Networking as a Means to Deliver Distance-Mode Health Education in Bangladesh

The provision of health education in a distance mode is very much a new approach in Bangladesh. Health education has been identified as an important means for ensuring the health and hygienic consciousness of all citizens. Limitations of infrastructure and resource personnel are important problems for such educational programmes. This article focuses on two programmes, a Bachelor in Nursing programme and a Certificate in Primary Health Care programme, that were developed and implemented by the Bangladesh Open University (BOU) through a distance-mode module. The use of electronic media delivery and the development of the continuing and extension health education offerings in distance mode have been successful. They provide access to global networking and to information on educational systems.     

MI-NLMS adaptive beamforming algorithm for smart antenna system applications

INTRODUCTION The demand for mobile communication services is increasing at a rapid pace throughout the globe. The increasing demand for mobile communication ser- vices in a limited RF spectrum motivates the need for better techniques to improve spectrum utilization. Smart antenna system was adopted by ITU for the IMT-2000 or the Third Generation (3G) wireless networks due to its capability to improve channel capacity and interference suppression. A smart an- tenna system combines mult…     

Absence of postzygotic isolating mechanisms: evidence from experimental hybridization between two species of tropical sea urchins

Two reef margin species of tropical sea urchins, Echinometra sp. C (Ec) and Echinometra oblonga (Eo), occur sympatrically on Okinawa intertidal reefs in southern Japan. Hybridization between these species was examined through a series of cross-fertilization experiments. At limited sperm concentrations, where conspecific crosses reached near 100% fertilization, both heterospecific crosses showed high fertilization rates (81%–85%). The compatibility of the gametes demonstrated that if gamete recognition molecules are involved in fertilization of these species, they are not strongly species-specific. We found that conspecific crosses reached peak fertilization levels much faster than did heterospecific crosses, indicating the presence of a prezygotic barrier to hybridization in the gametes. Larval survival, metamorphosis, and juvenile and adult survival of hybrid groups were nearly identical to those of their parent species. Hybrids from crosses in both directions developed normally through larval stages to sexually mature adults, indicating that neither gametic incompatibility nor hybrid inviability appeared to maintain reproductive isolation between these species. In adults, Ec×Ec crosses gave the highest live weight, followed by Eo (ova)×Ec (sperm), Ec (ova)×Eo (sperm), and Eo×Eo. Other growth performance measures (viz., test size, Aristotle’s lantern length, and gonad index) of hybrid groups and their parental siblings showed the same trends. The phenotypic color patterns of the hybrids were closer to the maternal coloration, whereas spine length, tube-foot and gonad spicule characteristics, pedicellaria valve length, and gamete sizes showed intermediate features. Adult F₁ hybrids were completely fertile and displayed high fertilization success in F₁ backcrosses, eliminating the likelihood that hybrid sterility is a postzygotic mechanism of reproductive isolation. Conversely, intensive surveys failed to find hybrid individuals in the field, suggesting the lack or rarity of natural hybridization. This strongly suggests that reproductive isolation is achieved by prezygotic isolating mechanism(s). Of these mechanisms, habitat segregation, gamete competition, differences in spawning times, gametic incompatibility or other genetic and non-genetic factors appear to be important in maintaining the integrity of these species.     

The flow of,and access to,information in Bangladesh: A village level case study

This paper identifies the sources and channels of information in the rural areas of Bangladesh and highlights the information flow and access patterns at the village level of Comilla and Chittagong districts in Bangladesh. It proposes some suggestions for effective information services in rural area, as well as a specific model for a Bangladesh Integrated Rural Information System (BD-IRIS) to improve the information system of villagers. This study uses structured interviews through a pilot survey of 20% of the households from each village and information gathered by personal observations and other secondary sources, as well as appropriate statistical methods. A total of 155 responses is included in the study.Existing conditions of information flow and access in this case study indicate that there are problems in access in spite of interpersonal sources and channels of information. Of course, it is important to remember that the low literacy rate in the villages studied and in many similar communities presents many serious barriers. The author recommends establishing a Village Information Center (VIC) to provide integrated and concerted information services, along with an integrated rural information system for the purpose in the villages studies, and more widely, to meet the requirements of all people in villages in Bangladesh. The case study is one of very few studies focusing on the flow and access of information for rural areas of Bangladesh, particularly as regards information sources and channels, system and services. The approach can be replicated in other communities, and the proposed model for future direction to improve information system of village level people of Bangladesh could be modified for use in other countries.     

Teacher collaborative inquiry as a professional development intervention: benefits and challenges

The paper reports on a collaborative learning project coded as the teacher inquiry community that was carried out over a year in a private higher education institution to improve the professional capability of language-based subject teachers. Nine teachers completed the project all of whom were females and shared work experience of 2–29 years. Six of them held some form of qualification in education, and all except for one possessed at least a basic degree in some field. The study focused on three questions namely teacher benefits, impact of practice, and application of solutions. Findings revealed that the former two questions were well substantiated for most teachers, but the same thing could not be said of the third. While a number of senior teachers benefitted at the level of classroom implementation, the others explained away their inability to incorporate new ideas in their teaching. Individual characteristics and personality, and culture seemed to make a difference. However, the study concluded that the collaborative learning model could serve as a viable mechanism for the teachers’ professional development.