50 research outputs found
Analisis Kepekaan Lingkungan Pesisir Muara Beting,Bekasi Jawa Barat Terhadap Tumpahan Minyak
No full textPantai Muara Beting yang berada di desa Pantai Bahagia Kecamatan Muara Gembong
termasuk ke dalam Kawasan Strategis Lingkungan, dan Kawasan Strategis Sumber Daya Alam
berdasarkan Rencana Tata Ruang Wilayah Kabupaten Bekasi Tahun 2011-2031. Laut Jawa sebagai
batas utara dari Kabupaten Bekasi merupakan salah satu jalur sibuk pelayaran yang berasal dari
Tanjung Priok menuju Jayapura dan Tanjung Priok menuju Surabaya menjadi sumber utama
tumpahan minyak yang dapat terjadi di sekitar wilayah pesisir Muara Beting. Tujuan penelitian ini
untuk mengidentifikasi habitat dan ekosistem Muara Beting, mengetahui dampak kerusakan yang
terjadi akibat tumpahan minyak dan memproyeksikan distribusi dampak tumpahan minyak
menggunakan proyeksi informasi atribut Indeks Kerentanan Lingkungan ke dalam bentuk informasi
spasial (peta). Metode analisis Indeks Kerentanan Lingkungan (IKL) menjadi salah satu metode yang
tepat untuk menangani masalah tumpahan minyak di suatu wilayah. Dengan mengkategorikan Nilai
Kepekaan, Nilai Ekologis dan Nilai Sosial Ekonomi ke dalam 5 kategori yaitu : Tidak peka, Kurang
Peka, Sedang, Peka, dan Sangat peka. Luas daerah penelitian keseluruhan di Kecamatan Muara
Gembong adalah 53,29 dan terbagi menjadi 3 kategori Kepekaan Lingkungan yaitu 23,49
terkategori Sangat Peka, 1,63 terkategori Peka, dan 28,17 terkategori Tidak Peka. Dampak
tumpahan minyak yang terjadi di wilayah penelitian sebesar 50 % terkategori Sangat Peka dan 16,67%
terkategori Peka terhadap tumpahan minyak. Terdapat 2 Ekosistem yang terdapat di wilayah penelitian
yaitu Mangrove (Tegakan Api-api,Tegakan Pidada,dan Tegakan Bakau) dan Tambak (Ikan Nila dan
Ikan Bandeng)
The Malleability of the Past: "Íslendingabók" as Narrative History
No full text"Íslendingabók" (Book of Icelanders) is the earliest surviving history of Iceland, written by the priest Ari Þorgilsson sometime between 1122 and 1133. Despite spanning the period from the Settlement in the ninth century to 1118, the work is concise, which suggests that a specific selection of information was made by the author during the composition process. This hypothesis is supported by the quality of the information conveyed, which seems to favour Ari himself and his patrons, and by Ari’s omission of material that would compromise his view, evidence of which is nevertheless present in other sources.
This article explores "Íslendingabók" as a careful reconstruction of the Icelandic past, thus as narrative history; the focus will be on the strategies and aims that lay behind the author’s project, not least on the ideological foundations that shaped Ari’s views. This approach will allow for a better appreciation of the text and its production context, as compared to the influential but often uncritical methods used to study the work that flourished during the late nineteenth and early twentieth centuries and which still reverberate today, within both scholarly discussions of the work and popular contemporary attitudes in Iceland towards the country’s medieval history and culture
Research on land markets in South Asia : what have we learned?
No full textThe authors review the literature on land markets in South Asia to clarify what's known and to highlight unresolved issues. They report that: (1) We have a good understanding of why sharecropping persists and why it can be superior to other standard agricultural contracts. We have less understanding of what determines the relative efficiency of sharecropping in different environments and why other apparently superior contractual relationships are rare. (2) Insecure rights to land adversely affect production and investment incentives in areas outside of South Asia, but in South Asia strong evidence linking investment and rights to production is scarce. (3) An inverse relationship between farm size and output per unit area is a recurrent feature in data from South Asia, apparently related to land-labor interactions. (4) Although small farms seem to be more efficient than large ones, small farmers have trouble raising their profitability and enlarging their holding, largely because of credit constraints, but also because of poverty and policy that discriminates against them. (5) Misguided land reform in the past has made tenancy unattractive to landowners, so large capital-intensive farms have developed. Political economic analysis is needed to explain the failure of past land reform, as well as distortions in agricultural input and output markets in (6) South Asia. Land fragmentation (as distinguished from farm size) has caused productivity losses. Those losses have not been quantified and the reasons fragmentation persists are poorly understood. (7) Transaction costs are a significant impediment to functioning land markets. In South Asia, transfers of land rights are complicated by lack of explicit title to land, and by informal and customary rights. (8) One pressing research problem is gender discrimination, an important factor in land market imperfections -especially (within the household) the separation of land management and its control. Research needs include more systematic regional comparisons, the use of more panel data, and an investigation of how agricultural productivity is affected by gender problems and land fragmentation.Banks&Banking Reform,Environmental Economics&Policies,Agricultural Knowledge&Information Systems,Land Use and Policies,Public Sector Economics&Finance,Environmental Economics&Policies,Banks&Banking Reform,Agricultural Knowledge&Information Systems,Rural Land Policies for Poverty Reduction,Land Use and Policies
COASTLINE CHANGE ANALYSIS ON BALI ISLAND USING SENTINEL-1 SATELLITE IMAGERY
No full textBali is well-known as a popular tourism location for both local and foreign tourists. There are nine areas designated for tourism, eight of which are coastal. However, due to coastal erosion, the coastline of Bali is changing every year. The purpose of this study is to determine the changes that took place between 2015 and 2020 using Sentinel-1 satellite imagery. The study was conducted along the coastline of Bali Island at coordinates 08° 53' 35.5648" S, 114° 24' 41.8359" E and 08° 00' 46.7865" S, 115° 44' 17.5928" E. The coastlines were identified using the Otsu image thresholding method and linear tidal correction was performed. The coastline change analysis was made using the transect method. Ground truths were conducted in representative areas where major changes had occurred, either as a result of abrasion or accretion. According to the Sentinel-1 analysis, the coastline changes in Bali during the period 2015 – 2020 were mainly caused by abrasion, apart from at Buleleng, which were generally caused by accretion. Abrasion in Bali is dominantly affected by strong currents and high waves meanwhile accretion which having weak currents and low waves was more affected by human factor such as the construction in this study area
Performance Studies of the Blossom V Algorithm
No full textThe Blossom V algorithm is used in graph theory to compute a perfect matching of minimum cost. We conducted performance studies on the algorithm using the maya cluster in the UMBC High Performance Computing Facility to better understand the
performance capabilities and emphasize potential approaches for improvement. In the performance studies, we varied the number of nodes, graph density, and weight range for numerous graphs. For each graph, we recorded execution times and memory usage. For all graphs used in the performance studies, we found that the majority of time is spent in initialization. We also found that as graph density increases, both execution time and memory usage increase. While we anticipated these conclusions, we reached other conclusions that were more surprising. We determined that as the weight range of a graph increases, initialization time and total execution time increase. We also found that scaling down integer weight ranges to real-valued weight ranges has a limited effect on initialization time and total execution time. Future studies should focus on speeding up the initialization process of the algorithm.These results were obtained as part of the REU Site: Interdisciplinary Program in High Performance Computing (hpcreu.umbc.edu) in the Department of Mathematics and Statistics at the University of Maryland, Baltimore County (UMBC) in Summer 2015. This program is funded by the National Science Foundation (NSF), the National Security Agency (NSA),
and the Department of Defense (DOD), with additional support from UMBC, the Department of Mathematics and Statistics, the Center for Interdisciplinary Research and Consulting (CIRC), and the UMBC High Performance Computing Facility (HPCF). HPCF is supported by the U.S. National Science Foundation through the MRI program (grant nos. CNS{0821258 and CNS{1228778) and the SCREMS program (grant no. DMS{0821311), with additional substantial support from UMBC. Co-author Gabrielle Salib was supported, in part, through a contract from the National Security Agency (NSA), UMBC, the Meyerhoff Scholars Program. Graduate assistants Ari Rapkin Blenkhorn, Jonathan Graf, and Samuel Khuvis were supported during Summer 2015 by UMBC.https://userpages.umbc.edu/~gobbert/papers/REU2015Team6.pd
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Author Correction: Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function
No full textChristina M. Lill, who contributed to analysis of data, was inadvertently omitted from the author list in the originally published version of this article. This has now been corrected in both the PDF and HTML versions of the article
Erratum : The Cancer Genome Atlas Comprehensive Molecular Characterization of Renal Cell Carcinoma (Cell Reports (2018) 23(1) (313–326.e5) (S2211124718304364) (10.1016/j.celrep.2018.03.075))
No full text(Cell Reports 23, 313–326; April 3, 2018) In the originally published version of this article, the author list contained two errors. Specifically, David J. Kwiatkowski was misspelled as David J. Kwaitkowski, and William Y. Kim was inadvertently written as William T. Kim. Both names have been corrected online. The authors regret this error
Verses, subverses and subversions in contemporary postcolonial poetry : the arts of resistance in the works of Linton Kwesi Johnson and Lesego Rampolokeng
No full textIncludes bibliographical references (leaves 136-141).This dissertation seeks to analyse insubordination and resistance manifested in postcolonial and post-apartheid poetry as ways of subverting dominant Western discourses. More specifically, I focus my analysis on textual strategies of resistance in the poetry of Linton Kwesi Johnson and Lesego Rampolokeng. The syncretistic quality in the oeuvres of both poets is related to diaspora, hybridity and crealisation as forms of writ[h]ing against (neo)colonially-based hegemonic discourses. Postcolonial critiques at large will frame this analysis of strategies of domination and resistance, but some discussions from the domain of history, sociology and cultural studies may also enter the debate. In this regard there is a great variety of theories and arguments dealing with the contradictions and incongruities in the question of power relations interconnecting domination and resistance. This study is arranged in three pivotal debates. There is firstly an in-depth discussion of underpinning theories that deal with strategies of domination and resistance in the postcolonial domain This is a threefold task carried out by scrutinising (a) the origins of colonial discourse and its binarist tendencies, (b) the pitfalls of anticolonialist resistance based on dualistic opposites, and (c) the hybrid and insubordinate nature of resistance as an efficient alternative to transcend such binaries. Afterwards I seek to investigate how strategies of diasporic resistance and cultural hybridism employed in the poetry of Linton Kwesi Johnson can contribute to moving away from the limitations of dichotomies and also subvert hegemonic power. And finally, I look at crealisation, mockery and insubordination as strategies of resistance in the postapartheid poetry of Lesego Rampolokeng. Besides that, this project is concerned with the increasing importance of academic studies on postcolonial literatures. The present research aims therefore to analyse postcolonial and post-apartheid poems as strategic techniques to decentre dominant Western rhetoric that tries to naturalise inequalities and injustices in the relations between power holders and the powerless in both local and global contexts
Author correction: Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function
No full textChristina M. Lill, who contributed to analysis of data, was inadvertently omitted from the author list in the originally published version of this article. This has now been corrected in both the PDF and HTML versions of the article
