Principles of Dataset Versioning: Exploring the Recreation/Storage Tradeoff

The relative ease of collaborative data science and analysis has led to a proliferation of many thousands or millions of $versions$ of the same datasets in many scientific and commercial domains, acquired or constructed at various stages of data analysis across many users, and often over long periods of time. Managing, storing, and recreating these dataset versions is a non-trivial task. The fundamental challenge here is the $storage-recreation\;trade-off$: the more storage we use, the faster it is to recreate or retrieve versions, while the less storage we use, the slower it is to recreate or retrieve versions. Despite the fundamental nature of this problem, there has been a surprisingly little amount of work on it. In this paper, we study this trade-off in a principled manner: we formulate six problems under various settings, trading off these quantities in various ways, demonstrate that most of the problems are intractable, and propose a suite of inexpensive heuristics drawing from techniques in delay-constrained scheduling, and spanning tree literature, to solve these problems. We have built a prototype version management system, that aims to serve as a foundation to our DATAHUB system for facilitating collaborative data science. We demonstrate, via extensive experiments, that our proposed heuristics provide efficient solutions in practical dataset versioning scenarios

ANALYSIS OF PUBLICATION PROFILE OF ACADEMIC LIBRARIANS IN MAHARASHTRA

Research has always been regarded as the most important intellectual activity in the higher education system; therefore this research article aims to provide a comprehensive picture of research productivity in symposia, seminars, conferences, journals, book chapters, research projects and patents carried out by various academic librarians during 2004 to 2013. A questionnaire was designed for data collection and the same was sent to the academic librarians by e-mail/in print. The results indicate that there were total 1325 research productivity in symposia, seminars, conferences, journals, book chapters, research projects and patents during the year 2004 to 2013. Highest 405 (30.57%) research papers published in conferences. Maximum 28.98% research publications appeared during the year 2013. Dr. S.P. Chavan was the most prolific author he has published 85 (6.41%) research papers. Librarian preferred English language to write research papers. Researchers communicated their research through variety of communication channels. The librarian mostly preferred to journals for communication channel. Highest 57 (74.03%) librarians have used single authorship pattern for their publications. Mostly 68 (88.31%) librarians have attending the workshops/symposia/seminars/conferences to acquire new skills, latest technology, update knowledge

LITERARY STUDY OF MUTRASANGRAHANIYA MAHAKASHAYA WITH RESPECT TO MUTRASANGRAHANIYA KARMA

The tremendous craze for junk food, fast food, canned food, untimely food intake wrong sleeping habits, causes physical as well as mental hazards like Sheetmeha, Hastimeha, hypertension along with that Insomnia, Anxiety etc. have become a very common problem.The herbal option for treatment of Sheetameha, Hastimeha etc. Mutrasangrahaniya Mahakashaya from Ayurvedic text can be used as readymade guide. In this work Mutrasangrahaniya Mahakashaya from Charak Samhita is studied. Prameha is considered as one of the emerging disease in today’s era. The cardinal symptom of Prameha in Ayurveda is Atipravrutti of Mutra which resemble to the “Diabetes”.Numerous Experiments and Research projects are performed everyday to tackle this disease. So it is very much essential to learn & understand the drugs which are crucial & can act as to key drugs in such diseases. So it is very much required to study Mutrasangrahaniya Karma. The Dravyas used for Mutrasagrahaniya Karma are mainly Kashaya rasatmaka which control the Atipravrutti of Mutra by absorbing Jaliyansh.Mutrasangrahana Karma can be defined as the activity that reduced the amount of Mutra thus restoring the normally of Ambu. Jambu, Amra, Plaksa, Udumbara, Ashvattha, Bhallataka, Vata, Asmantaka, Kapitana, Somvalka are ten herbs of Mutrasangrahaniya Mahakashaya and their Karmukatva as mentioned mainly in Charaka Samhita and if necessary, other ancient texts. These ten Dravyas mainly have Kashaya rasa, Sheeta virya, Ruksha guna and are Kapha pitta shamaka. They help in rectifying Atipravrutti of Mutra by directly and indirectly

AWARENESS AND USE OF E-RESOURCES IN COLLEGE LIBRARIES: A SURVEY

Abstract: Present study is a base on the use of electronic resources by the teachers of various college libraries in Marathwada. This survey was particularly conducted to know the awareness and use of e-resources like E-Journals, E-Books, CD/DVDs, OPAC, E-Databases and Internet etc. in various college libraries of Marathwada. Primary data were collected from 210 respondents with the help of survey. The data were collected with the aid of a questionnaire and analyzed through the use of SSPS and Microsoft Excel. The results indicate that maximum 102 (48.57%) of respondents visited to the library in daily. It was also noticed that maximum 189 (24.60%) of respondents were using E-Journals. Maximum 145 (69.04%) of respondents had excellent knowledge of using e-resources. Majority of 198 (46.47%) respondents were using e-resources for research purpose. Majority 155 (47.11%) of respondents feels that low internet speed is the main problem to access the e-resources

DataHub: Collaborative Data Science & Dataset Version Management at Scale

Relational databases have limited support for data collaboration, where teams collaboratively curate and analyze large datasets. Inspired by software version control systems like git, we propose (a) a dataset version control system, giving users the ability to create, branch, merge, difference and search large, divergent collections of datasets, and (b) a platform, DataHub, that gives users the ability to perform collaborative data analysis building on this version control system. We outline the challenges in providing dataset version control at scale.Comment: 7 page

Hepatitis B virus DNA polymerase gene polymorphism based prediction of genotypes in chronic HBV patients from Western India

Background: Hepatitis B Virus (HBV) infection is one of the major causes of liver cirrhosis, hepatocellular carcinoma and deaths due to the acute or chronic consequences worldwide. HBV is distributed into various genotypes based on nucleic acid sequence variation.Objectives: To develop a method of HBV genotyping and drug resistance interpretation using partial sequencing of polymerase gene.Methods: This study was performed on 98 HBV infected patients’ serum samples from Western India. A nested PCR protocol was designed for amplification of pol gene from HBV genome and Sanger’s sequencing of the gene fragment. Sequences were aligned with HBV reference sequences for phylogenetic analysis and for characterization of genetic diversity. Drug resistance mutations were screened using HBVSeq program from Stanford University.Results: Distribution of HBV genotypes showed predominance of genotype D, circulating in 76 (77.55%) patients (p < 0.05). Genotypes A and C were less prevalent and were identified in 4 (4.08%) and 18 (18.37%) patients, respectively. Anti-retroviral drug resistance mutations were not detected in any patient.Conclusion: A method for determination of HBV genotypes using pol gene sequencing which simultaneously detects major drug resistance mutations has been established. HBV genetic diversity may play an important role in treatment decision.Keywords: Hepatitis B virus, nested PCR, genotype, sub-genotypes, YMDD mutation

Hepatitis B virus DNA polymerase gene polymorphism based prediction of genotypes in chronic HBV patients from Western India.

Background: Hepatitis B Virus (HBV) infection is one of the major causes of liver cirrhosis, hepatocellular carcinoma and deaths due to the acute or chronic consequences worldwide. HBV is distributed into various genotypes based on nucleic acid sequence variation. Objectives: To develop a method of HBV genotyping and drug resistance interpretation using partial sequencing of polymerase gene. Methods: This study was performed on 98 HBV infected patients\u2019 serum samples from Western India. A nested PCR protocol was designed for amplification of pol gene from HBV genome and Sanger\u2019s sequencing of the gene fragment. Sequences were aligned with HBV reference sequences for phylogenetic analysis and for characterization of genetic diversity. Drug resistance mutations were screened using HBVSeq program from Stanford University. Results: Distribution of HBV genotypes showed predominance of genotype D, circulating in 76 (77.55%) patients (p < 0.05). Genotypes A and C were less prevalent and were identified in 4 (4.08%) and 18 (18.37%) patients, respectively. Anti-retroviral drug resistance mutations were not detected in any patient. Conclusion: A method for determination of HBV genotypes using pol gene sequencing which simultaneously detects major drug resistance mutations has been established. HBV genetic diversity may play an important role in treatment decision

AWARENESS AND USE OF E-RESOURCES IN COLLEGE LIBRARIES: A SURVEY

Abstract: Present study is a base on the use of electronic resources by the teachers of various college libraries in Marathwada. This survey was particularly conducted to know the awareness and use of e-resources like E-Journals, E-Books, CD/DVDs, OPAC, E-Databases and Internet etc. in various college libraries of Marathwada. Primary data were collected from 210 respondents with the help of survey. The data were collected with the aid of a questionnaire and analyzed through the use of SSPS and Microsoft Excel. The results indicate that maximum 102 (48.57%) of respondents visited to the library in daily. It was also noticed that maximum 189 (24.60%) of respondents were using E-Journals. Maximum 145 (69.04%) of respondents had excellent knowledge of using e-resources. Majority of 198 (46.47%) respondents were using e-resources for research purpose. Majority 155 (47.11%) of respondents feels that low internet speed is the main problem to access the e-resources

A cross sectional study to assess concerns and commitment for organ donation among students of arts, science and commerce streams in degree colleges in a metropolitan city

Background: Organ Donation has been one of the greatest advances of modern science that has resulted in many patients getting a renewed lease of life. Organs can be donated by a living person, after natural death & much more organs can be donated after brain Stem Death is “Cadaver Transplant” or “Deceased Donor Transplant”. It is believed that youths are the leading decision makers in families. So identifying their concerns regarding organ donation, creating awareness in them and changing their beliefs may increase number of consents for organ donation in long run. Materials and methods: A prospective interventional study was done among 206 students of nine degree colleges (arts, science and commerce streams) using random sampling during the study duration of 18 months. Results: 102 (48.57%) participants were willing to donate their organs after their BSD while after the session in post test the number increased significantly to 163 (77.61%). And when this increase was compared within streams, it was found that there was no significant difference in knowledge of students of Arts, Science and Commerce streams. (P > 0.05)Conclusions: Willingness to donate their Own Organs or that of the Relatives in case of brain stem death had increased significantly after session in the post test. And there was no significant difference found in the increase in knowledge when compared within all the three streams, religions and boys and girls, which indicates that the level of increase in knowledge amongst Arts, Commerce students is comparable to Science students