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1.
Khalid M Yang WJ Kishwar N Rajput ZI Arijo AG 《Journal of Zhejiang University. Science. B》2006,7(6):459-466
This study is aimed at identifying and determining the percentage of occurrence frequency of cellulose decomposing soil fungi. The soil samples were inoculated into culture plates prepared in Sabouraud medium under sterilized conditions and incubated at 30 ℃ for 4 to 7 d. The identified fungal species were incubated in self-designed cellulose medium for testing their cellulolytic ability. Forty-two species, including2 nova species, representing sixteen genera showed growth and sporulation in the cellulose medium. Most of the isolated species were from genus Aspergillus and Penicillium. Aspergillus niger and Mucor hiemalis showed highest occurrence frequency （45% and 36% respectively）, as these species were collected from about 80% of soil samples. Being agar free and cheaper, the new fungal medium designed showed results equivalent to Sabouraud medium. 相似文献
2.
Nazir Raja 《Asia Pacific Education Review》2005,6(1):1-6
Pakistan is an underdeveloped country, full of socio-economic problems where a few oppress and exploit many. One of the most significant reasons, in this context, is the high illiteracy rate in the country. However, can high literacy rates guarranty peace, prosperity, and justice in any society? Clearly, not. There are several countries where the literacy rate is very high yet it remains relatively under-developed. However, it is also a fact that the countries where the literacy rate is high have been able to emerge as economic powers. In this regard, Freire’s concept of literacy education is very helpful in that it is essentially hopeful in nature and it is this optimism which gives it the potential to transform oppressive situations. 相似文献
3.
This paper explores the premise that environmental education involves raising environmental consciousness rather than simply knowing about the environment in a technical-rational manner and acting for it in mechanistic prescribed ways. The paper draws on educational theory and data from a phenomenological case study of educators working together at an outdoor education centre in urban Canada, whose practice of environmental education we believe can best be described as environmental consciousness raising. Based on our study’s findings, we suggest that raising environmental consciousness involves connecting people to their environment, fostering care for the environment, and building agency for the environment. Educating for environmental consciousness also requires providing people with deeply engaging experiences that afford authenticity, multidimensionality and serendipity. Our study shows how these features can work to raise environmental consciousness, by creating epiphanies or moments when sudden expansions of the self, realization and empowerment become possible. 相似文献
4.
Nazir Carrim 《Cambridge Journal of Education》1998,28(3):301-320
This article traces the desegregation of South African schools, particularly within the Gauteng region, from 1990 to 1996. It argues that there is a discernible shift from ‘race’ to ethnicity in the educational discourses of South Africa and that at school level the response to ethnicity has been predominantly assimilationist. Attempts to move towards a more multicultural way of operating are affected by conceptions of identity as stereotyped, homogenised and generalised, leading to ‘bad’ multicultural approaches being adopted. Simultaneously, within official enunciations at national level, a consistent anti‐racist stance is emphasised in order to ‘redress’ apartheid's legacies. I argue that such initiatives are limited due to their structurally functionalist underpinnings and their failure to address the complexity of identities contained within the classifications of ‘black’ and ‘white’. I argue that, on both the macro and the micro level, questions of identity and difference are central in developing a school (and societal) environment that is not only free from racism, but other forms of discrimination too. 相似文献
5.
Nazir Hawi 《美中教育评论》2010,7(9):47-57
The author has undergone a major shift in the way of teaching his undergraduate computer programming courses. In the classroom, the teacher＇s computer is connected to a splitter and a video projector that display the computer＇s screen to the entire class. Using this technology, the programming language itself is used live in class to help the students learn how to program. The students are learning in a context by far livelier than those of previous methods. Teaching computer programming is not achieved by lecturing and writing the program instructions on board or by displaying program instructions to the class on transparencies or slides of electronic presentations. With the implementation of student-centered approaches, the students migrated from the state of passive receivers to constructors of computer programming concepts. Students are coached to develop a sense of exploration, individuality and autonomous thinking. The enthusiasm for technology has been facilitating and supporting the learner-centered approach. Everyone in this approach is a learner, including the teacher. 相似文献
6.
Chavan VU Durgawale PP Sayyed AK Sontakke AV Attar NR Patel SB Patil SR Nilakhe SD 《Indian journal of clinical biochemistry : IJCB》2011,26(3):283-289
Twenty-four hour urinary albumin excretion (UAE) is considered as gold standard method for albuminuria measurement, but collection
of 24-h urine is inconvenient. The aim of present study was to evaluate whether albumin: creatinine ratio (ACR) and urinary
albumin concentration (UAC) in different spot urine samples correlate or not with 24-h UAE for screening of microalbuminuria
in type 2 diabetic patients. We collected first morning void (FMV), random urine sample (RUS) and 24-h urine, separately on
consecutive days from 104 type 2 diabetic patients. ACR and UAC in each spot urine sample compared with 24-h UAE with regard
to Pearson correlation coefficient. Pearson’s correlation of albumin: creatinine ratio (ACR) with 24-h UAE was (r = 0.802 and 0.623) in first morning void (FMV) and random urine sample (RUS), respectively. Pearson’s correlation coefficient
of urinary albumin concentration (UAC) compared with 24-h UAE was (r = 0.943 and 0.920), in FMV and RUS, respectively, P < 0.01. Results revealed that values in first morning void (FMV) were better correlated with 24-h urinary albumin excretion
(UAE), than the values in random urine sample (RUS). We conclude that the first morning void (FMV) may be able to replace
24-h urine collection, preferably urinary albumin concentration (UAC) in the initial screening of microalbuminuria in diabetic
patients. 相似文献
7.
Nicole Blum Joanne Nazir Soren Breiting Kim Chuan Goh Erminia Pedretti 《Environmental Education Research》2013,19(2):206-217
This paper addresses one of the key challenges for work on education, sustainable development and climate change: the overall conceptualisation of central ideas such as Environmental Education (EE), Education for Sustainable Development (ESD) and Climate Change Education (CCE). What do these concepts mean in diverse contexts and amongst diverse actors? The paper draws on evidence from Denmark, Singapore, Canada and the UK to highlight both the similarities and differences found within national discussions around these essentially contested concepts and their relationships to policy and practice. It further argues that such debates about how EE, ESD and CCE are conceptualised remain highly relevant, not just to academic work itself, but also to wider international discussions regarding both the current and potential relationships between conceptual understanding, policy and practice. 相似文献
8.
This article represents an attempt to reconcile discussions of aspects of educational research with recent developments in complexity science. It is argued that current characterizations of and distinctions among research methodologies in education are potentially counterproductive, in large part because they tend to be defined against or in terms of principles and methods that have been rendered problematic within the sciences. To develop this point, the authors draw on several contemporary discourses: poststructuralist methods are used to foreground the Euclidean (plane) geometric roots of much of the vocabulary of educational research; fractal geometry is taken as a source of images and analogies to support alternative conceptions of knowledge, learning and teaching; informed by poststructuralist and fractal geometric notions, the authors turn to complexity science and argue that it is fitted to and offers important elaborations of current discussions of educational research methodologies. In the process, they suggest that it may be time to abandon some of the prominent distinctions used to describe educational research, including ‘quantitative versus qualitative’ and ‘sciences versus humanities’. 相似文献
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10.
Thin-walled spread foundations are used in coastal projects where the soil strength is relatively low. Developing a predictive model of bearing capacity for this kind of foundation is of interest due to the fact that the famous bearing capacity equations are proposed for conventional footings. Many studies underlined the applicability of artificial neural networks (ANNs) in predicting the bearing capacity of foundations. However, the majority of these models are built using conventional ANNs, which suffer from slow rate of learning as well as getting trapped in local minima. Moreover, they are mainly developed for conventional footings. The prime objective of this study is to propose an improved ANN-based predictive model of bearing capacity for thin-walled shallow foundations. In this regard, a relatively large dataset comprising 145 recorded cases of related footing load tests was compiled from the literature. The dataset includes bearing capacity (Qu), friction angle, unit weight of sand, footing width, and thin-wall length to footing width ratio (Lw/B). Apart from Qu, other parameters were set as model inputs. To enhance the diversity of the data, four more related laboratory footing load tests were conducted on the Johor Bahru sand, and results were added to the dataset. Experimental findings suggest an almost 0.5 times increase in the bearing capacity in loose and dense sands when Lw/B is increased from 0.5 to 1.12. Overall, findings show the feasibility of the ANN-based predictive model improved with particle swarm optimization (PSO). The correlation coefficient was 0.98 for testing data, suggesting that the model serves as a reliable tool in predicting the bearing capacity. 相似文献