1,721,006 research outputs found
A GIS based approach to Holocene hydrology and social connectivity in the Gobi Desert, Mongolia
No full textThis paper presents the results of a GIS derived drainage network, demonstrating a hypothesized model of the Ulaan Nuur paleo hydrological system in the Gobi Desert of Mongolia. Furthermore, this model was successfully used as a basis for field survey along the hypothesized southern edge of the paleo lake and associated paleo channels, which led to the discovery of four Neolithic period sites, several Neolithic surface scatters, and one later period cemetery. This allows for the establishment of a potential, viable route of movement between the Gobi Altai and Bayanzag, along the southern paleo hydrological system of Ulaan Nuur. This case study further demonstrates that through examination of paleo hydrological landscapes in the Gobi Desert, GIS hydrology modelling may provide a reliable methodology to locate sites in other arid and semi-arid environments, and enable further evaluation of their relationships to past watercourses.</p
Disentangling "Forced Displacement" from Pastoral Mobility: Recovery and Reconstruction in the Sahel and in South Sudan
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Post-disaster reconstruction strategies: a case study in Taiwan
No full textAfter the Ji-Ji Earthquake in 1999, The Taiwanese Government worked to establish a more holistic disaster management system (Maa 2011); however the Morakot 88 Flood Disaster in 2009 then challenged the capabilities of the emergency response systems in post disaster response, recovery and reconstruction (Lu et al. 2011). Although the Government has invested heavily and made a serious effort to improve post-disaster housing projects, the debates on the development plans have generated tension between the Government and the aboriginal groups (Quan 2010).Both good practice and lessons learned can be identified from these cases, and it is important that they should be shared with as wide an audience as possible within Taiwan and regions affected. In particular, the way the government works together with NGOs and also the adoption of a more holistic post disaster reconstruction framework are important aspects of this work.This chapter aims to evaluate the post disaster reconstruction strategies implemented in particular after the Typhoon Morakot flood disaster in 2009. The objectives include firstly, establishing the context of Taiwan and examining how climate change has already affected the island; secondly, exploring post disaster management strategies taken to respond to these phenomena; thirdly, providing an extensive examination of the housing projects in relation to the affected populations post Typhoon Morakot; and finally, share the best practice for other countries confronted with same or similar issues and making recommendations for the planning of reconstruction projects.<br/
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Changing Deserts
No full textDeserts – vast, empty places where time appears to stand still. The very word conjures images of endless seas of sand, blistering heat and a virtual absence of life. However, deserts encompass a large variety of landscapes and life beyond our stereotypes. As well as magnificent Saharan dunes under blazing sun, the desert concept encompasses the intensely cold winters of the Gobi, the snow-covered expanse of Antarctica and the rock-strewn drylands of Pakistan. Deserts are environments in perpetual flux and home to peoples as diverse as their surroundings, peoples who grapple with a broad spectrum of cultural, political and environmental issues as they wrest livelihoods from marginal lands. The cultures, environments and histories of deserts, while fundamentally entangled, are rarely studied as part of a network. To bring different disciplines together, the 1st Oxford Interdisciplinary Deserts Conference in March 2010 brought together a wide range of researchers from backgrounds as varied as physics, history, archaeology anthropology, geology and geography. This volume draws on the diversity of papers presented to give an overview of current research in deserts and drylands. Readers are invited to explore the wide range of desert environments and peoples and the ever-evolving challenges they face
Shedding light on the past:records of past conditions in the Namib Desert and the use of luminescence dating.
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