bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sentiment analysis on product purchase through e commerce
Authors: Prof. Samir Kumar Bandyopadhyay Sreyasi Rupa De, 
Published: June 2017

Customer Opinions play a very crucial role in daily life. When we have to take a decision, opinions of other individuals are also considered. Now-a-days many of web users post their opinions for many products through blogs, review sites and social networking sites. Business organizations and corporate organizations are always eager to find consumer or individual views regarding their products, support and service. In e-commerce, online shopping and online tourism, it is very crucial to analyze the good amount of social data present on the Web automatically therefore, it is very important to create methods that automatically classify them. Opinion Mining sometimes called as Sentiment Classification is defined as mining and analyzing of reviews, views, emotions and opinions automatically from text, big data and speech by means of various methods.
Our main theme is to review opinion of customers from online reviews those are posted by customers
Conservation of Freshwater Fish Biodiversity: A Challenge for Rajasthan
Authors: Jhajhria Anita 
Published: June 2017

Fish biodiversity is associated with deserts around the globe. Freshwater fishes have suffered from the resultant altered flow regime, together with other threats including habitat degradation and alien species. Impacts reached a critical point during prolonged droughts that lead to broad-scale habitat loss and drying of refuges during, and urgent conservation measures were subsequently instigated for threatened small-bodied fish species. The present paper aims to document the actions undertaken in the desert hatchery of Western Rajasthan by induced breeding exercises on common carp, rohu and mrigal using ovaprim hormone that will help guide and inform management responses for conservation of threatened fishes in modified systems subjected to severe water decline
Desarrollo de un revestimiento de chamota/yeso para microfundición de joyería con esmeraldas preengastadas
Authors: Londoño-Montes Carlina Sofía , Fernández-Torres Mayerly Jhojana , Córdoba-Tuta Elcy María 
Published: June 2017

Durante el proceso de microfundición de joyería con preengaste de gemas, el molde cerámico compuesto de sílice y yeso se estabiliza a temperaturas cercanas a 650 °C, mientras que la temperatura de vertido de la aleación preciosa ronda los 1000 °C. Por tal motivo, este método no es apropiado para gemas como la esmeralda, dada la gran susceptibilidad de esta al daño cuando se expone a temperaturas superiores a 350 °C. Teniendo en cuenta lo anterior, el objetivo del presente trabajo fue desarrollar un revestimiento cerámico de chamota-yeso que adquiera estabilidad dimensional a bajas temperaturas, con el fin de implementar el método de preengaste de esmeraldas para la obtención de piezas de joyería.La metodología experimental se dividió en tres etapas: i) caracterización química, mineralógica, granulométrica y térmica de las materias primas; ii) preparación y caracterización de las mezclas chamota-yeso-agua, incluyendo tiempos de vertido y fraguado de las pastas, junto a la permeabilidad y resistencia a la compresión y al choque térmico, y. además, análisis microestructural, y iii) evaluación del nuevo revestimiento en el proceso de microfundición con preengaste de esmeraldas. Se encontró que las condiciones más adecuadas para obtener el revestimiento chamota/yeso son: granulometría fina del refractario (100 % con pasante malla 200), relación chamota/yeso 75/25 y adición de 50 % de agua a la mezcla seca.Los resultados de la investigación permiten concluir que es posible someter las esmeraldas al proceso de microfundición de joyería, con gemas preengastadas, empleando el revestimiento chamota-yeso desarrollado aquí, cuyo tratamiento térmico no supera los 350 °C, así como una aleación de metal precioso de bajo punto de fusión (398 °C).
Representasi Matematis Mahasiswa Calon Guru dalam Menyelesaikan Masalah Matematika
Authors: Astuti Erni Puji 
Published: June 2017

[Bahasa]: Penelitian ini bertujuan untuk mengetahui deskripsi representasi matematis mahasiswa calon guru dalam menyelesaikan masalah matematika. Metode yang digunakan adalah kualitatif dengan pendekatan studi kasus. Data yang dikumpulkan yaitu hasil pekerjaan mahasiswa yang berupa hasil vignette. Snowball sampling sebagai teknik pengambilan subjek. Subjek dalam penelitian ini adalah tiga mahasiswa semester 3 Program Studi Pendidikan Matematika Universitas Muhammadiyah Purworejo. Teknik yang digunakan untuk mengumpulkan data adalah dokumentasi. Data dianalisis melalui tahap reduksi data, penyajian data, menarik kesimpulan, dan verifikasi. Hasil penelitian ini menunjukkan bahwa subjek S1 dan S2 dengan kemampuan akademik tinggi dan sedang mempunyai kemampuan representasi matematis yang baik karena memenuhi semua indikator representasi matematis. Kemampuan representasi matematis subjek S3 dengan kemampuan akademik rendah masih kurang karena tidak memenuhi semua indikator. Kemampuan representasi matematis tidak hanya dipengaruhi oleh kemampuan akademik, tetapi dipengaruhi juga oleh faktor lain seperti penggunaan media, pengalaman, dan latihan dalam menyelesaikan masalah matematika.
Kata kunci : Representasi Matematis; Calon Guru; Masalah Matematika; Vignette
[English]: This case study aims to determine the description of the mathematical representation of prospective teachers in solving mathematical problems. The data collected is student’s work in the form of vignette results. Snowball sampling is as the technique of taking subjects. Subjects in this study are three students in the third semester mathematics education program of Muhammadiyah University of Purworejo. The technique used to collect data is documentation. The data is analyzed through data reduction, data display, conclusion, and verification. This study finds that the subject S1 and S2 with high and middle academic ability have good mathematical representation ability since they meet all the indicators of mathematical representation. While the mathematical representation of subject S3 with low academic ability is still less because S3 does not meet all of the indicators. The ability of the mathematical representation is not only influenced by academic ability, but also by other factors such as the use of media, experience, and drill in solving mathematics problems.
Keywords: Mathematical Representation; Prospective Teacher; Mathematics Problems; Vignette
Message from Editors-in-Chief
Authors: Murakami Suminao ,   President, Laboratory of Urban Safety Planning, Japan, Takiguchi Katsuki ,   Professor of the Graduate School of Information Science and Engineering, Tokyo Institute of Technology
Published: June 2017

Life is studded with unforeseen difficulties. These are the disasters. They tend to fiercely destroy things and systems man has created.
This journal’s objective, both in traditional paper form and in electronic form, is to reduce the horrors of disaster through information. Disasters here include earthquakes, typhoons, volcanic eruptions, epidemics, fires, pollution, terrorism, etc. with the exception of war.
The subjects to be taken up here cover any subject that conforms to the purpose of this journal and is journalistically substantial. These include, for example, scientific papers, commentary, educational articles, investigational reports, information updates and materials.
Disaster is to be examined from a larger, more comprehensive, and panoramic viewpoint touching on all fields of science, engineering, agriculture, medicine, pharmacology, jurisprudence, sociology, economics, political science, etc.
Measures to be taken against disaster vary from urgent and short-term to mid- and long-term. For these measures, in certain cases, there is not a moment to lose, while for others, centuries may be spent before a definite prospect is attained.
This journal is not one for enumerating commonplace information. Editors are responsible for selecting the subjects calling public attention and for structuring vast research activities.
Disaster can probably never be completely eliminated, but with ongoing effort, there may be ways to avert or ameliorate it. Your understanding and support would be most deeply appreciated.
Message to the “Journal of Disaster Research”
Authors: Arnold Christopher ,   FAIA, RIBA  Past President, Earthquake Engineering Research Institute, Oakland, California
Published: June 2017

Publication of the new “Journal of Disaster Research” is most timely. The last two years have wreaked death and destruction around the world with a savagery that has caused widespread discussion, recrimination and concern for the future. It is clear that, in spite of the great progress in knowledge in the last few decades, much remains to be discovered about the characteristics of nature’s forces and how we can design, construct and retrofit to combat them. This work is the traditional role of scientist and engineers.
It is also clear that much of the new found knowledge is not being implemented and our social and economic institutions are ineffective at ensuring that the best information is put to use. Preparing for and responding to nature’s extreme events is a social, economic and political problem and research in these areas must parallel the traditional areas of scientific and engineering research.
The expressed viewpoint of the Journal of Disaster Research as multidisciplinary for both technology and social systems is right on target. Neither system can solve the problems on its own: we need true multidisciplinary approaches in which both research and practice are conducted by integrated teams that encompass the whole range of technological, social, economic and political issues. We need to improve communication between the public, the experts, the response officials and workers, the scientists and the politicians.
Japan is located in a key position within the Pacific Rim. This region is both a critical area for a wide range of natural disasters, including earthquake, tsunamis, floods and high winds. As such, it is world laboratory for studying the effects of these events and our attempts to respond to them to reduce casualties and economic losses.
Japanese researchers and response officials have gathered invaluable information over the last few decades in both the technological and social fields which they have shared at many international conferences, seminars and private discussions. In the United States we have instituted a number of joint research programs with our Japanese colleagues and visited each other’s cities to share information on preparing for and recovering from these inevitable events. The Journal of Disaster Research, with its distinguished board of editors, will be an invaluable resource in sharing our knowledge.
The advent of international terrorism has added a new and unwelcome dimension to the disaster scene. The field is still in its infancy and much research is needed. Some of the lessons from combating natural disasters can be used in the terrorism situation, but also many new problems are introduced. We must come to terms with the difference between the deliberate attempts to provoke a disaster compared to nature’s random initiation of disastrous events.
Christopher Arnold,
Palo Alto, California, USA, June 7, 2006
A Short Note for Dr. Murakami’s Review in 1986
Authors: Nakabayashi Itsuki ,   Professor, Tokyo Metropolitan University
Published: June 2017

Dr. Murakami’s review reconfirms that Japan’s high economic growth following World War II did not realize the construction of urban areas robust against disaster, rather, the destruction caused by repeated natural disasters has triggered the development of disaster management measures. When all major Japanese cities but Kyoto were destroyed in the catastrophic American air raids of 1945, the urban development in Japan has begun. Among the disasters bearing valuable lessons in the need for disaster management was the 1959 Ise-Bay (Ise-Wan) Typhoon, which led to the 1961 Disaster Countermeasures Basic Act laying the groundwork for disaster management measures in Japan. This law obligated the central government and local organizations to take three measures: (1) preparedness against disaster to reduce damage before a disaster strikes; (2) measures against disaster to control the spread of damage and to promote emergency recovery; and (3) preparation of restoration plans transforming damaged urban areas into safer, more comfortable locales by repairing damage, reconstructing residences, and returning daily life to its natural order. Dr. Murakami’s paper shows how difficult it is to remodel already established but dangerous cities into safe ones. The 1964 Niigata Earthquake promoted measures in managing earthquake destruction in urban areas, as did the Tokachi Offshore (Tokachi-Oki) Earthquake of 1968 and the Miyagi Prefecture Offshore (Miyagi-Ken-Oki) Earthquake of 1978, which triggered revision of the Building Standard Law. These developments did not, however, mean that cities had become safe. If the lessons taught by disasters in the 1960s and 70s had actually been implemented in urban development, the tremendous damage precipitated by the Great Hanshin-Awaji Earthquake in Kobe in 1995 might have been reduced. What we should note here is that the efforts toward urban disaster management measures taken during this period have formed a firm base for current urban disaster management measures.
Itsuki Nakabayashi
Professor, Tokyo Metropolitan University
A Short Note for Dr. Shibata's Review in 1975
Authors: Suzuki Kohei ,   Professor Emeritus, Tokyo Metropolitan University
Published: June 2017

Dr. Heki Shibata, Professor Emeritus of the University of Tokyo, who authored this paper, is a pioneer in earthquake engineering in Japan and the leading expert in mechanical engineering and seismic design of involving pressure vessels and piping equipment of nuclear power plants and high-pressure gas plants.
In this paper, he classifies and analyzes mode failures and failure mechanisms in a variety of equipment based on his experience in surveying the damage to industrial facilities caused by the 1964 Niigata Earthquake and the 1971 San Fernando Earthquake.
He proposes introducing the "factor of importance" based on potential of danger in seismic design, developing basic seismic design calculating the maximum response of a structure using seismic coefficients including those defined using this factor of importance.
This idea has been effectively implemented as the basis for seismic design of structures and equipment to this day, and its historical value has been proven.
He points out the importance of the reliability of seismic design and the safe design of instrumentation and control in seismic design. Dr. Shibata emphasizes the importance of learning the lessons presented by the damage experienced in earthquakes, the 1995 Kobe Earthquake - yet another example of his invaluable foresight.
A Short Note for Dr. Ishihara's Review in 1974
Authors: Kokusho Takaji ,   Professor, Chuo University
Published: June 2017

In the paper written in the 1970s by Prof. Kenji Ishihara, case histories for the 1964 Niigata earthquake and preceding earthquakes were addressed followed by overviews on laboratory studies, in situ investigations, and analyses of liquefaction. The research efforts overseen by Prof. Ishihara have been developed considerably since then for reliably evaluating liquefaction potential for a variety of soils unqer different geotechnical and seismic conditions and for mitigating liquefaction failure through ground improvement.
Despite great advances in this aspect of liquefaction research, problems vital to reasonable design methodology remain. One is postliquefaction soil behavior, which plays an important role in soil-structure interactions in performance- based design of buildings and civil structures. Unlike other earthquake failures, serious damage often occurs in the postliquefaction phase due to static and monotonic straining by dead loads in liquefied soil where little residual shear strength remains. Great uncertainties remain on how to evaluate postliquefaction ground deformation, together with soil-structure interactions, concerning differential settlement, uplift, and lateral displacement. Current engineering practices tend to avoid uncertainties by employing soil treatment or rigid foundations to prevent soil liquefaction in advance. However, with design earthquakes becoming larger, it becomes unrealistic to depend too much on such costly measures.
In contrast to the paper by Prof. Ishihara, the preceding paper has addressed liquefaction-induced structural damage during recent earthquakes from the 1964 Niigata earthquake to the present. Typical failure modes associated with damage have been identified from the viewpoint of their mechanisms and mitigation measures. Among them, the postliquefaction lateral flow mechanism, which still seems quite controversial, has been discussed in detail by introducing different views on soil behavior causing lateral flow or spreading. Special emphasis has been placed on recently evolving research results considering the effect of void redistribution due to soil stratification.
A Short Note for Dr. Watabe’s Review in 1974
Authors: Kuramoto Hiroshi ,   Associate Professor, Toyohashi University of Technology
Published: June 2017

In the preceding article, I reviewed two seismic design codes of the Building Standard Law of Japan, revised in 1981 and 2000, with the transition of Japanese seismic design codes.
Having read the 1974 review by Dr. Makoto Watabe, I was most impressed by his comprehensive understanding of seismic structural systems for buildings – an understanding that is fresh even today, more than 3 decades later. He moves from the basic principles for seismic building design to earthquake-resistant properties of building. The general seismic design principles of buildings he has reviewed are very sound and introduced both in current seismic design codes I have reviewed and the seismic design of super high-rise buildings over 60 m high.
Congratulatory Message
Authors: Onishi Takashi ,   President, Science Council of Japan  President, Toyohashi University of Technology, Japan
Published: June 2017

First, let me express my heartfelt congratulations to the Journalof Disaster Research (JDR) on its tenth anniversary. TheThird UN World Conference on Disaster Risk Reduction, heldthis year in Sendai, Japan, is the third of three UN conferencesin the last three decades all held in Japan. This is partlybecause Japan is one country often subject to natural disasterswith man-made disasters following them. It is also becauseJapan has historically attempted to reduce and prevent disasterdamage.
Lessons in tsunami disasters mainly learned from the 1933Showa Sanriku Earthquake Tsunami and 1960 Chile EarthquakeTsunami were tested in the 2011 Great East Japan EarthquakeDisaster. Concurrent tsunami damage and man-madeproblems arising in the Fukushima Daiichi nuclear power plantaccident were greatly exceeding anything predicted or imaginedand showed how Japan’s disaster reduction and preparednessefforts failed.
In an ordeal on such an unprecedented scale, further lessonsmust be learned so that we may prepare better for impendinglarger disasters. Objectives of disaster research is to learn whatdisasters have to teach us scientifically and to find and proposemeasures that may help reduce disaster damage and help usimplement these measures. I believe that many researchers –particularly younger ones – now diligently and rapidly studyingin preparation for future disasters in view of what past researchmay have lacked. The results of their research should be channeledglobally into disaster reduction in Japan and elsewhere.
As an international open-access journal, the JDR provides animportant forum for international research exchange in practicalways. It is my hope that the JDR will, on this occasion ofits tenth anniversary, continue to provide such a platform forwide-ranging leading-edge research, and that it will therebycontribute to building a society supremely resilient against disaster.
Disseminating Knowledge for Reducing Disaster Damage
Authors: Shuto Nobuo ,   Professor Emeritus, Tohoku University  Tsunami Engineering Laboratory, International Research Institute of Disaster Science, Tohoku University, Japan
Published: June 2017

Natural disasters occur where natural phenomena and human society meet. Disaster impact differs in form and scale – even when the natural external forces are the same – depending on the way of society. Our knowledge of natural forces is also limited, making it much difficult to interpret disasters.
In areas of frequent disasters, knowledge about highly vulnerable areas is passed as wisdom for the generations, and local residents know how to live safest. Living in disaster-prone areas puts residents at risk, but such areas often bring notable benefits to residents, so they have learned and devised wisdom to adapt to nature’s force.
With disaster-resistant structures being more widely constructed and disaster experience decreasing, however, the local population has grown as new residents arrive, and local generational wisdom has often been lost.
Simeulue Island, Indonesia, is a good example of how the transmission of local wisdom has minimized disaster damage. In the great 1907 tsunami, for example, several thousand of the island’s residents died and this experience of “a tsunami following an earthquake” has been handed down in lullabies, stories, and epics. Thanks to this wisdom, the death toll from the 2004 Indian Ocean Tsunami was just one out of a population of 78,000. This wisdom has been limited to this island geographically, however, rather than shared with neighboring islands.
One basic principle for mitigating disaster damage is to share local wisdom world-wide – not limit it to local geographical areas. This requires stable nucleus to collect and disseminate such knowledge widely. The Journal of Disaster Research (JDR) has served this role for the last decade as it has grown.
Human beings are forgetful creatures, so however much they may want to avoid major disasters after they happen – up to eight years or so, this wisdom rarely lasts longer than a decade. Fifteen years later, disasters are largely forgotten and preparation is no longer seen as urgent.
How can we prevent this? It is my great hope that the JDR will continue to help prevent such oblivion and continue as a nucleus for disaster reduction in the decades ahead and further in the future.
Nobuo Shuto May 22, 2015