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  • 1
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    Heat assisted recording on bottom layer of dual recording layer perpendicular magnetic recording media for two and a half dimensional (2.5D) magnetic data storage (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-01-31
    Description: In this paper, we present a study on two and a half dimensional (2.5D) perpendicular magnetic recording (PMR) media consisting of dual hard magnetic recording layers (RL) with 1st or top RL1 used for conventional data storage and 2nd or bottom RL2 used for dedicated servo with lower linear densities or DC servo patterns with focus on the writability issue of the bottom servo layer (RL2). We demonstrate experimentally the feasibility to magnetically erase, write, and re-write RL2 by laser assist on a home built heat-assisted-magnetic-recording writing test system. Experimental data (by magnetic force microscopy measurements) show that the signal amplitudes of the pre-recorded magnetic patterns for both RL1 and RL2 decrease at almost the same rate with thermal erasure using scanning laser power (Pw) from 13 mW to 23 mW, clearly indicating equally effective laser heating and close temperature rise for RL1 and RL2 for far field laser heating with laser pulse duration in sub- μ s and μ s range. This is further verified by theoretical simulations of the thermal distribution and the temperature rise depth profile in dual layer media by laser heating. Simulations indicate very little temperature difference of less than 6 K (∼1% of maximum temperature rise) between RL1 and RL2 because the main mechanism of temperature rises in RL1 and RL2 is due to the effective thermal conduction from the top layers to lower layers. These experimental and theoretical study results could provide useful understanding and insights into servo writing methods of 2.5D PMR media.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 2
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    Haematopoietic stem cells derive directly from aortic endothelium during development (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-02-16
    Description: A major goal of regenerative medicine is to instruct formation of multipotent, tissue-specific stem cells from induced pluripotent stem cells (iPSCs) for cell replacement therapies. Generation of haematopoietic stem cells (HSCs) from iPSCs or embryonic stem cells (ESCs) is not currently possible, however, necessitating a better understanding of how HSCs normally arise during embryonic development. We previously showed that haematopoiesis occurs through four distinct waves during zebrafish development, with HSCs arising in the final wave in close association with the dorsal aorta. Recent reports have suggested that murine HSCs derive from haemogenic endothelial cells (ECs) lining the aortic floor. Additional in vitro studies have similarly indicated that the haematopoietic progeny of ESCs arise through intermediates with endothelial potential. Here we have used the unique strengths of the zebrafish embryo to image directly the generation of HSCs from the ventral wall of the dorsal aorta. Using combinations of fluorescent reporter transgenes, confocal time-lapse microscopy and flow cytometry, we have identified and isolated the stepwise intermediates as aortic haemogenic endothelium transitions to nascent HSCs. Finally, using a permanent lineage tracing strategy, we demonstrate that the HSCs generated from haemogenic endothelium are the lineal founders of the adult haematopoietic system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2858358/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2858358/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bertrand, Julien Y -- Chi, Neil C -- Santoso, Buyung -- Teng, Shutian -- Stainier, Didier Y R -- Traver, David -- DK074482/DK/NIDDK NIH HHS/ -- F32DK752433/DK/NIDDK NIH HHS/ -- HL074891/HL/NHLBI NIH HHS/ -- HL54737/HL/NHLBI NIH HHS/ -- R01 DK074482/DK/NIDDK NIH HHS/ -- R01 DK074482-04/DK/NIDDK NIH HHS/ -- England -- Nature. 2010 Mar 4;464(7285):108-11. doi: 10.1038/nature08738. Epub 2010 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California 92093-0380, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20154733" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Aorta/*cytology/*embryology ; *Cell Differentiation ; *Cell Lineage ; Cell Separation ; Endothelial Cells/cytology ; Endothelium, Vascular/*cytology/embryology ; Female ; Flow Cytometry ; Genes, Reporter/genetics ; Hematopoietic Stem Cells/*cytology ; Male ; Microscopy, Confocal ; Microscopy, Fluorescence ; Transgenes/genetics ; Zebrafish/blood/*embryology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Potential and problems participatory mapping of creative industry in Kampong Dolly, Surabaya (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-11-30
    Description: Kampung Dolly is a village in the city of Surabaya, which in ancient times was famous as the largest prostitution area in Southeast Asia. Currently, the Mayor of Surabaya, Tri Rismaharini’s has transformed negative branding. Kampung Dolly has become a tourist village with various choices ranging from mural art villages, play kampongs, art kampongs, green kampongs, gift villages and culinary villages. All potential Dolly village has to be well planned by doing potential mapping especially the creative industry potential to support the tourism village, improve the welfare of the community and enhance the competitiveness of creative industries in the city of Surabaya to the national and international level. The role of society is needed to do the mapping of this potential because the people who know the potential of their respective regions.
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 4
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    Ecological sustainability level of Surabaya City based on ecological footprint approach (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-11-30
    Description: Surabaya is the second largest metropolitan city in Indonesia and is a growth point in East Java. Rapid economic growth and population growth due to urbanization have a negative impact on the sustainability and environmental sustainability resulting in the emergence of environmental issues such as decreasing land productivity and environmental pollution. In an effort to realize sustainable development, development must pay attention to the carrying capacity of its environment. Therefore, in this study a study was conducted using an ecological footprint approach by identifying the components of consumption and emissions resulting from human activities (ecological footprint). Furthermore, identification of the constructed productivity of each type of land such as agricultural land, forestry land, fishery land and constructed land is recorded as a component of natural resources availability (biocapacity). The difference arising from the calculation of consumption and availability o...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 5
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    Quality improvement strategy of slum settlement in Kingking sub district, Tuban Regency (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-11-30
    Description: Handling slum areas up to 0% becomes a major concern for the Government of the Republic of Indonesia which has been contained in the National Medium Term Development Plan (RPJMN) of 2015-2019. Kingking sub district is an area in the coastal district of Tuban Regency which still has slum settlements until now. This research was conducted to formulate strategies to improve the quality of slum settlements in Kingking sub district through SWOT analysis. Based on the final result of this research, it can be concluded that the strategy to be taken is by using the strength to overcome the existing threats, by focusing on increasing the synergy between government, community, and private role in order to handling the slum.
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 6
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    A Comparative Study of Synthetic Over-sampling Method to Improve the Classification of Poor Households in Yogyakarta Province (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-11-20
    Description: The problems of class imbalance have attracted concerns from researchers in the last few years. Class imbalance problems occur when the data had unbalanced proportions between two or more groups of data which are usually called as minority and majority classes. These problems relate to creation of bias in parameter estimation as well as misclassification of the objects especially for the minority class. These will lead to incorrect prediction of the minority class, and eventually will risk the policy making. Several approaches have been proposed to correct misclassification such as data-based and algorithm-based approaches. As a data-based approach, over-sampling method is very popular nowadays. This approach is basically balancing the distribution of data through addition of synthetic data. This paper discusses the strategies of adding synthetic data in order to improve the accuracy of classification. Moreover, this paper also reviews several over sampling methods for class imb...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 7
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    Coastal Planning for Sustainable Maritime Management (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-08-18
    Description: The Kendari Bay has a unique asset as a tourist attraction for the residents of the city of Kendari. The coastal area with all its potential like as a green open space, mangrove forests, the play area, is still a main destination to attract visitors. The function of Kendari Bay area as a tourist attraction makes this area as a place that has potential as a center of the economic vibrant and social interaction. Unfortunately, the arrangement of the area has not been done so that the integrated development of the region is not optimal. Therefore, it is important to promote a concept of area development as a tourist destination of coastal areas in order to improve function of the area. The concept of the coastal development area of Kendari Bay as tourist areas is formulated by the development criteria that influence to capable of attracting tourists. The criteria is formulated by the factors that play a role in the development of tourist areas, further exploration by qualitative des...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 8
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    The Evaluation of Facilitation Process in Building Community Capacity about OVOP Concept in Kenjeran Coastal Area, Surabaya (2017)
    Institute of Physics (IOP)
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    Publication Date: 2017-08-18
    Description: The concept of One Village One Product (OVOP) is an approach to the development potential of the area in the region to produce products that can compete in the global market, while still having unique characteristics of the area. Bulak District is one of the Kenjeran coastal area in Surabaya, Indonesia. Bulak District has had a great potential of marine products, but still contribute greatly in improving the people's welfare. Total activities of SMEs in the District of Bulak quite a lot, but the resulting product unknown to the wider community and the global marketplace. Activity of facilitation for SMEs society do to build community capacity in the implementation of the concept of OVOP. Based on the results of the evaluation assistance through Wilcoxon Signed Ranks Test result an increased understanding of the community regarding to the five subjects related OVOP concept. There are six factors to note in mentoring activities that need to be considered for the sustainability of ...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 9
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    Factor Influencing Creative Industries Development in Kenjeran Surabaya (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-08-18
    Description: Indonesia needs to improve the competitiveness of local products to optimize its contribution to the ASEAN Economic Community (AEC) for the welfare of the population. This can be done by improving the development of creative industries. Kenjeran Sub District is one of the coastal villages in the city of Surabaya, which has a large number of poor people. The potential of the creative industries is still not visible in efforts to increase public welfare. Therefore, it is necessary to investigate the factors that influence the development of creative industries in Kenjeran. This study using in-depth interview were analysed using content analysis and Cartesian diagram to determine the important factors that affect the development of creative industries in Sub district of Kenjeran. By using five respondents from the government shows that the factors that have a high level of importance and advantages are low among other regulatory factors of raw materials, import and export, extortio...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 10
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    Varieties of sweet sorghum Super-1 and Super-2 and its equipment for bioethanol in Indonesia (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-06-03
    Description: The demands for alternative sources of energy are currently growing because people now are more aware of the many negative impacts fossil fuel gives to the environment. Plant based renewable energy provides potential sources of energy with advantages of cleaner fuel effect and capability of integration with food crop production. Sorghum have been considered to be a highly potential source of food, feed and fuel, especially sweet stalk sorghum that posses both functions as source of food from its grain and fuel made from its stalk juice. Sorghum varieties are well known to have excellent adaptability in marginal areas, especially drought prone areas where other food crops are unable to thrive. The current paper aimed to share ongoing research on many functional uses of sweet stalk sorghum varieties released at Indonesian Cereals Research Institute (ICERI). Among many varieties that had been released were two sweet stalk sorghum varieties SUPER-1 and SUPER-2 released in 2013 that ...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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