45 research outputs found
Jade, amber, obsidian and serpentinite: the social context of exotic stone exchange networks in central Japan during the late middle Jômon period
No full textThis dissertation presents a holistic, contextual approach to long-distance exchange networks in Central Japan ca. 4000BP, by focussing on the conditions behind consumption, circulation and production of exotic materials-particularly jadeite and amber, derived from unique and spatially limited source areas: the Japan Sea Coast and the Pacific Coast, respectively. Analysis is based on a sample of 175 sites located in Nagano, Yamanashi, Tokyo, Kanagawa and Chiba prefectures. Analysis of consumption patterns shows that (compared to other artefact categories) stone ornaments, particularly jadeite and amber pendants, are far more frequently associated with 'intentional deposition', namely mortuary contexts. This indicates that a different value was ascribed to jadeite and amber pendants. However, other evidence of social differentiation during the Middle Jômon is absent. Statistical analysis of wider distribution patterns, focusing on the variability of site characteristics, supports the hypothesis that the presence of jadeite and/or amber pendants is strongly associated with 'core' settlements sites characterised by large house numbers, continuous habitation throughout the Middle Jômon period, and evidence of ritual practices. Contrary to some hypotheses, evidence for related distribution between jadeite pendants and serpentinite adzes (from the same production sites) was lacking, whereas association with relatively high quantities of obsidian (used for arrowheads) proved to be strong. It is suggested that exploitation and export of nearby high-quality obsidian resources contributed to the prosperity and longevity of Japan Alps settlements. In the greater Tokyo Plains area, settlements stable and influential enough to participate in the exchange networks are located at major rivers or coastal areas. Preliminary assessment of the conditions at production sites suggests different motives for part-time ornament production. It is hypothesised that inhabitants of the Japan Sea area-a hostile and isolated environment-may have engaged in fairly regular production and export of jadeite pendants and serpentinite ground adzes, in order to maintain interregional relations, possibly as a socio-economic safety net. Perhaps-in the absence of obvious environmental or subsistence constraints-Pacific Coast inhabitants produced amber pendants occasionally, exchanging them as hunting amulets between specialist hunters. However, further research involving subsistence patterns is essential for a deeper understanding of long-distance exchange network membership. Finally, it is suggested that instead of being individually-owned valuables, jadeite pendants (as 'esoteric', inalienable items) circulated among certain settlements in an interregional exchange network, regulating relationships and creating a social context for different types of exchange. Perhaps mortuary contexts indicate exchange relations with 'the other world'
Integrating PBL and MT to enhance first-year students’ writing in English second language contexts: A case study of University of Limpopo, South Africa
No full textAcademic essay writing also known as student writing, tends to be a challenging task for first-year students in most universities worldwide and in particular for first-year students in English second language contexts in South Africa. This study sought to explore how an integrated project-based learning and mobile technology model can enhance student essay writing in an English second language context. This case study employed a qualitative research approach, and it is underpinned by the Online Collaborative Learning Theory which purports that collaborative learning and knowledge building using technology can promote effective learning. The sampling was purposive, and the data was collected through focus group interviews, observations, and student essays. The findings from the first phase of the study revealed that in general, the first-year English second language students found it difficult and challenging to write English academic essays. The findings from the second and third phases showed that while some students found the integrated project-based learning and mobile technology model challenging because they had very little experience of working collaboratively on a writing project, others, however, found the experience enriching. These students benefitted from the collaboration which involved, interacting, and sharing ideas in their groups, using mobile phones to search for sources as they debated on the relevance of the various sources before agreeing and deciding on the most appropriate and relevant information, then deciding on the best way to approach the essay writing task. To that end, because the students were actively engaged, justifying, and learning from each other, the group essays showed more depth, and the quality of writing was enhanced. The study recommends that the academic essay writing course should be compulsory for first-year English second language students, and it should incorporate the integrated project-based learning and mobile technology model because the students are required to not only focus on the essay writing, but they are also consciously and unconsciously expected to think about, rethink and justify their decisions and actions. This will entail the university amending its policies to allow the students to use their mobile phones in the classroom. In addition, the first-year English lecturers must be trained on how to effectively incorporate the integrated project-based learning and mobile technology model in their teaching to enhance the students’ academic essay writing competencies.D. Phil. (English)Language Education, Arts and Cultur
Pocock, 1970, proximal and distal faces, Ashikajima Fm, II2h-H49g; K, Concavissimisporites variverrucatus (Couper, 1958) Brenner, 1963, proximal face, Ashikajima Fm, II2c-K43-1; L, Osmundacidites wellmanii Couper, 1953, proximal face, Ashikajima Fm, II2b-P32/4; M, Trilites bossus Couper, 1958, Ashikajima Fm, II2f-H29/1; N, O, Converrucosisporites sp. (N, Ashikajima Fm, II2f-V27/3; O, Ashikajima Fm, SEM-II2c); P, Cibotiumspora paradoxa (Maljavkina, 1949) Chang, 1965, proximal face, Kimigahama Fm, I1a-F40-g; Q, Concavissimisporites punctatus (Delcourt & Sprumont, 1955) Brenner, 1963, proximal face, Ashikajima Fm, SEM-II2c. Scale bar: 10 μm. in Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan)
No full textPocock, 1970, proximal and distal faces, Ashikajima Fm, II2h-H49g; K, Concavissimisporites variverrucatus (Couper, 1958) Brenner, 1963, proximal face, Ashikajima Fm, II2c-K43-1; L, Osmundacidites wellmanii Couper, 1953, proximal face, Ashikajima Fm, II2b-P32/4; M, Trilites bossus Couper, 1958, Ashikajima Fm, II2f-H29/1; N, O, Converrucosisporites sp. (N, Ashikajima Fm, II2f-V27/3; O, Ashikajima Fm, SEM-II2c); P, Cibotiumspora paradoxa (Maljavkina, 1949) Chang, 1965, proximal face, Kimigahama Fm, I1a-F40-g; Q, Concavissimisporites punctatus (Delcourt & Sprumont, 1955) Brenner, 1963, proximal face, Ashikajima Fm, SEM-II2c. Scale bar: 10 μm.Published as part of Legrand, Julien, Pons, Denise, Nishida, Harufumi & Yamada, Toshihiro, 2011, Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan), pp. 87-135 in Geodiversitas 33 (1) on page 95, DOI: 10.5252/g2011n1a6, http://zenodo.org/record/459701
Holocence envirommental changes in the Choshi Peninsula and its surroundings,eastern Kanto, central Japan(2)
No full textComputer Assisted Relief Generation - a Survey
No full textIn this paper we present an overview of the achievements accomplished to date in the field of computer aided relief
generation. We delineate the problem, classify the different solutions, analyze similarities, investigate the evelopment and review the approaches according to their particular relative strengths and weaknesses. In consequence this survey is likewise addressed to researchers and artists through providing valuable insights into the theory behind the different concepts in this field and augmenting the options available among the methods presented with regard to practical application
The use of contextualised teaching and learning in grade 11 and 12 mathematics classrooms in Gobabis, Namibia
No full textThis paper investigates the use of contexts in the teaching and learning of mathematics in two secondary schools in the Gobabis area using the Mayoh & Knutton (1997) taxonomy. It was found that not all contexts as suggested by Mayoh & Knutton were used by the teachers and that the context were almost entirely initiated by the mathematics teachers and were used as a primary strategy for presenting the content. The study recommended the introduction of the use of contexts in the pre-service training of mathematics teachers and that teachers create their own mathematics problems to solve rather than adhering to the problems provided in their textbooks which are often of a foreign origin
Botryococcus braunii Kutzing 1849
No full text<i>Botryococcus</i> sp. cf. <i>B. braunii</i> Kützing, 1849 <p>OCCURRENCE. — Ashikajima Fm (rare).</p> <p>DISTRIBUTION. — This genus is known from the Precambrian.</p> <p>DESCRIPTION</p> <p>Algae grouped in small bulb-like colonies, very altered. Colony diameter = 20-25 µm.</p> <p>BOTANICAL AFFINITIES</p> <p>Chlorococcales, Botryococcaceae. Freshwater green algae.</p>Published as part of <i>Legrand, Julien, Pons, Denise, Nishida, Harufumi & Yamada, Toshihiro, 2011, Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan), pp. 87-135 in Geodiversitas 33 (1)</i> on page 116, DOI: 10.5252/g2011n1a6, <a href="http://zenodo.org/record/4597011">http://zenodo.org/record/4597011</a>
The use of contextualised teaching and learning in grade 11 and 12 mathematics classrooms in Gobabis, Namibia
No full textThis paper investigates the use of contexts in the teaching and learning of mathematics in two secondary schools in the Gobabis area using the Mayoh & Knutton (1997) taxonomy. It was found that not all contexts as suggested by Mayoh & Knutton were used by the teachers and that the context were almost entirely initiated by the mathematics teachers and were used as a primary strategy for presenting the content. The study recommended the introduction of the use of contexts in the pre-service training of mathematics teachers and that teachers create their own mathematics problems to solve rather than adhering to the problems provided in their textbooks which are often of a foreign origin
The use of contextualised teaching and learning in grade 11 and 12 mathematics classrooms in Gobabis, Namibia
No full textThis paper investigates the use of contexts in the teaching and learning of mathematics in two secondary schools in the Gobabis area using the Mayoh & Knutton (1997) taxonomy. It was found that not all contexts as suggested by Mayoh & Knutton were used by the teachers and that the context were almost entirely initiated by the mathematics teachers and were used as a primary strategy for presenting the content. The study recommended the introduction of the use of contexts in the pre-service training of mathematics teachers and that teachers create their own mathematics problems to solve rather than adhering to the problems provided in their textbooks which are often of a foreign origin
