1,414 research outputs found
Factorization of isometries of hyperbolic 4-space and a discreteness condition:
No full textGilman's NSDC condition is a sufficient condition for the discreteness of a two generator subgroup of PSL(2,C). We address the question of the extension of this condition to subgroups of isometries of hyperbolic 4-space. While making this new construction, namely the NSDS condition, we are led to ask whether every orientation preserving isometry of hyperbolic 4-space can be factored into the product of two half-turns. We use some techniques developed by Wilker to first, define a half-turn suitably in dimension 4 and then answer the former question. It turns out that defining a half-turn in this way in any dimension n enables us to generalize some of Gilman's theorems to dimension greater than or equal to 4. We also give an exposition on part of Wilker's work and give new proofs for some of his results.Ph.D.Includes bibliographical references (p. 52-53)by Karan Mohan Pur
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
Designing a successful library school field experience
No full textTo share the library school field experience paradigm that the authors developed after their successful participation as a supervisor and student.
Design/methodology/approach – A review of field experience literature is provided. The field experience paradigms and perspectives pertaining to the supervisor and the student are explained. The paradigm is suggested as a model for field experience participants and their supervisors.
Findings – The field experience paradigm for the supervisors elucidates the stages – planning, training, mentoring and evaluation. The paradigm for students explains the phases – awareness, interests, planning and participation.
Research limitations/implications – The focus of the field experience, from which the paradigm emanated, was to train and prepare the student for agricultural librarianship in an academic library. The application of the paradigm may vary for different situations.
Practical implications – The paradigm is expected to be useful for supervisors and students of field experience programs.
Originality/value – This paradigm stems from the participation of the authors as a field experience supervisor and student. The steps and methods the authors followed will help advance future field experience programs
FIG. 8 in A catalogue and systematic overview of the shield-tailed snakes (Serpentes: Uropeltidae)
No full textFIG. 8. — Some uropeltid species photographed in life: A, Rhinophis zigzag Gower & Maduwage, 2011; B, Teretrurus sanguineus (Beddome, 1867); C, Uropeltis bicatenata (Günther, 1864); D, U. ceylanica Cuvier, 1829; E, U. dindigalensis (Beddome, 1877); F, U. ellioti (Gray, 1858); G, U. liura (Günther, 1875); H, U. macrolepis (Peters, 1861). Photos by RAP, RS, SRG, VS, S. Kehimkar, A. Mohan, and D. Raju.Published as part of Pyron, Robert Alexander, Ganesh, Sumaithangi Rajagopalan, Sayyed, Amit, Sharma, Vivek, Wallach, Van & Somaweera, Ruchira, 2016, A catalogue and systematic overview of the shield-tailed snakes (Serpentes: Uropeltidae), pp. 453-506 in Zoosystema 38 (4) on page 487, DOI: 10.5252/z2016n4a2, http://zenodo.org/record/457834
Rethinking web platform extensibility
No full textThe modern Web platform provides an extensible architecture that lets third party extensions, often untrusted, enhance and customize the Web browser and the Web applications. While the prevalence of extensions for both browsers and applications has been instrumental in making the Web browser hugely successful, there are two critical issues that the designers of the modern Web platform have not yet tackled in a principled manner. First, both the third party extensions and the extensible components of the Web platform include numerous vulnerabilities, which can compromise the security and privacy of end users. Second, the black-box and opaque nature of the Web platform limits the extent of extensibility achievable for Web developers, thereby hampering the development of novel browser-based user applications. This dissertation develops new tools and techniques to address the problem of insecure extensibility in the Web platform, proposes novel language and system level solutions to make extensibility a first class primitive for developing Web software, and demonstrates that these methods are applicable to real-world Web applications and Web browser extensions. Specifically, this dissertation makes the following three contributions. First, it studies and characterizes the problem of insecure JavaScript-based Web browser extensions using a specialized program analysis system, Sabre, which leverages JavaScript-level information flow mechanism to detect violations in client’s confidentiality and integrity arising from execution of untrusted extensions. Second, it formalizes the concept of transactions for JavaScript and implements Transcript, a language runtime system that allows hosting principals, i.e., Web browser and Web applications, to isolate untrusted JavaScript-based extensions using speculative execution. Lastly, this dissertation presents the design and implementation of Atlantis, a novel, extensible browser architecture that allows Web applications to define their own runtime environment and become more secure and robust. Atlantis enables developers with primitives to manage the Web application’s security and privacy, and removes their dependence on opaque, legacy Web interfaces.Ph. D.Includes bibliographical referencesby Mohan Dhawa
INSPEC database analysis for Knowledge Management records
No full textThe study deals with the Knowledge Management papers covered in the INSPEC, an international database on Information Science, Physical Sciences, Engineering and Computer Sciences. The papers have been analysed in terms of their content and other scientometric parameters
Cyber governance and the financial services sector:The role of public-private partnerships
No full textOptimal energy planning of a rural community in Jharkhand
No full textGlobally, the poor in rural areas without access to electricity continue to struggle
with serious challenges. These include health issues, limited educational opportunities,
biomass cooking fuels contributing to poor health, poor nutrition, water
availability, livelihood challenges and economic poverty. The United Nations (UN)
has recognized these challenges and has officially transcribed into the Eight Millennium
Development Goals (MDGs), later becoming the seventeen Sustainable Development
Goals (SDGs). The seventh of the SDGs is to ensure affordable, reliable,
sustainable and modern energy to all.
With that in mind, many governments, organizations and researchers have been
focusing their work on finding ways to provide energy to underdeveloped communities,
especially in the form of electricity. Despite the efforts, still nearly 1.2 billion
people worldwide lacked electricity in 2014. More than eight out of ten people without
access to electricity live in rural areas, so being most of the communities without
electricity rural, rural electrification has aroused plenty of attention.
The thesis presents a rural electrification project developed in Dewgain, a community
from the Jharkhand State in India. Dewgain is already connected to the electrical
grid, but as many other rural communities in Jharkhand, the electric service is
far from reliable.
Two visits were conducted at the village for data acquisition. The methodology
followed during the visits is presented, while the analysis of the results sets the
basement for the design of the solution. From the visit outcomes load profiles of the
electrical consumption expected are obtained.
Based on the most accessible renewable resources from the region, a hybrid solar
photovoltaic and biomass rice-husk gasifier generation system is dimensioned. Using
market-available components and state of the art technologies an optimisation
process is presented for dimensioning the system.
The resulting optimised design is validated matching the generation with the expected
demand. Finally, the costs of implementation and operation of the solution
are presented, in a 20 years service life projection
The regulation of botnets:How does cybersecurity governance theory work when everyone is a stakeholder?
No full text- …
