cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bounded combinatorics and uniform models for hyperbolic 3-manifolds
Creators: name: Brock, Jeffrey
name: Minsky, Yair
name: Namazi, Hossein
name: Souto, Juan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Bounded-type 3-manifolds arise as combinatorially bounded gluings of irreducible 3-manifolds chosen from a finite list. We prove effective hyperbolization and effective rigidity for a broad class of 3-manifolds of bounded type and large gluing heights. Specifically, we show the existence and uniqueness of hyperbolic metrics on 3-manifolds of bounded type and large heights, and prove existence of a bilipschitz diffeomorphism to a combinatorial model described explicitly in terms of the list of irreducible manifolds, the topology of the identification, and the combinatorics of the gluing maps.
Computer Simulations of Block Copolymer Nanocomposite Systems
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: Block copolymers and nanoparticles are elements of the soft matter family which includesdeformable materials and is increasingly part of industry and biological applications. Blockcopolymer melts can self-assemble into well-ordered, periodic structures in the mesoscale. Fur-thermore, block copolymers are perfect scaffolds to locate colloidal nanoparticles and, when appli-cable, control their orientation. Nonetheless, the co-assembly of colloids within block copolymersis not that of simple passive fillers. Instead, the presence of particles can greatly disturb the orig-inal block copolymer structure leading to a true collective behaviour where several length scalescompete, along with entropic and enthalpic mechanism of assembly. To study such a complexproblem, computer programs are used. Cell Dynamic Simulation provide an efficient methodto study hybrid block copolymer/nanoparticle systems in the mesoscale, combining a continu-ous approach to the phase separation of block copolymers with colloids, which are individuallytreated following Brownian Dynamics. Using this method, a series of experimental results havebeen reproduced. Moreover, it has been used to study otherwise complex open questions such asthe full phase diagram of block copolymer morphologies in the presence of an arbitrary numberof particles with arbitrary chemical characteristic. Colloids have been found to segregate withinthe block copolymer structures dictated by their chemical properties, size, shape and concen-tration in the system. At high concentrations nanoparticles can greatly disturb the polymericmorphology and interesting cases of aggregation and phase-separation have been found. Neutralnanoparticles can macro-phase separate into elongated clusters along the lamellar direction.Non-spherical particles such as nanorods or square-like particles have been studied in detail,finding highly ordered configurations of nanoparticles in accordance with recent experiments.Highly anisotropic nanoparticles have been found to display higher occupancy rate of the blockcopolymer interface, which makes them ideal to segregate in layers at block copolymer inter-faces. Chemically inhomogeneous nanoparticles have been also found to assemble into complexconfigurations when mixed with block copolymers. In order to achieve relevant box sizes, anefficient CDS scheme is used. Furthermore, a parallel scheme using FORTRAN Coarrays hasbeen used, which allows to simulate up to tens of?m sized systems, which is considerably largerthan previously reported simulations of block copolymer nanocomposite systems.
A Study of compatibility between Iranian digital libraries user interface and the elements of Ellis model of information seeking behavior
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2014

description: The goal of this study is to evaluate the compatibility between Iranian digital libraries user interface and the elements of Ellis model of information seeking behavior. This study was performed using evaluation method with a checklist. This list is based on six features of Ellis model, "Starting", "Chaining", "Browsing", "Differentiating", "Monitoring" and "Extracting" and included 110 sub-components that have been developed using Delphi method. The population of this study included 5 library softwares: Azarakhsh, Simorgh, Papyrus, Payam and Parvan. Results showed that the average of scores of user interface of softwares is as follows: in Starting 99.6, Chaining 117.2, Browsing 29.6, Differentiating 53. 2, Monitoring 22.4 and Extracting 39. Among the softwares of digital libraries, according to the total score for elements of Ellis model (1080), Azarakhsh with 549 points is in the first rank and had the highest support for elements of Ellis model. It also became clear that Chaining with 586 points (%55) had the highest support in softwares of digital libraries. Also the elements of Chaining, Starting and Differentiating earned sequently the highest rank in softwares of digital libraries. Finally, testing research hypotheses with %95 confidence showed that among softwares of digital libraries there is no significant difference regarding the rate of support of elements of information seeking behavior of Ellis model.
From Cloud Computing to Cloud Library: Proposing Cloud Model to configure Future Libraries
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: Cloud Computing is dominant mode of current and future of information and communication technologies. It is not beyond the realm of possibility that it would foment upheaval within libraries and information centers service-wise. The wide-reaching extent of these changes would envisage a new feature to libraries both in organization and service delivery. The present study, employing a descriptive analysis method, examines the concepts of cloud computing while laying the foundations for a cloud-based library as its corollary. While presented as a conceptual construct, the paper posits that the model can solve some of the issues such as digital right managements as well as copyright. Several models are offered and discussed with respect to applicability, missions, client group, financing as well as service blendals.
Librational response of a deformed 3-layer Titan perturbed by non-keplerian orbit and atmospheric couplings
Creators: name: Richard, Andy
name: Rambaux, Nicolas
name: Charnay, Benjamin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The analyses of Titan's gravity field obtained by Cassini space mission suggest the presence of an internal ocean beneath its icy surface. The characterization of the geophysical parameters of the icy shell and the ocean is important to constrain the evolution models of Titan. The knowledge of the librations, that are periodic oscillations around a uniform rotational motion, can bring piece of information on the interior parameters. The objective of this paper is to study the librational response in longitude from an analytical approach for Titan composed of a deep atmosphere, an elastic icy shell, an internal ocean, and an elastic rocky core perturbed by the gravitational interactions with Saturn. We start from the librational equations developed for a rigid satellite in synchronous spin-orbit resonance. We introduce explicitly the atmospheric torque acting on the surface computed from the Titan IPSL GCM (Institut Pierre Simon Laplace General Circulation Model) and the periodic deformations of elastic solid layers due to the tides. We investigate the librational response for various interior models in order to compare and to identify the influence of the geophysical parameters and the impact of the elasticity. The main librations arise at two well-separated forcing frequency ranges: low forcing frequencies dominated by the Saturnian annual and semi-annual frequencies, and a high forcing frequency regime dominated by Titan's orbital frequency around Saturn. We find that internal structure models including an internal ocean with elastic solid layers lead to the same order of libration amplitude than the oceanless models, which makes more challenging to differentiate them by the interpretation of librational motion.
description: 38 pages, 4 figures. Accepted for publication in Planetary and Space Science
The evolution of colouration in parrots (Psittaciformes)
Creators: name: Mitchell, Charlotte
Publisher: name: University of Lincoln
Year: 2023
Subjects: C180 - Ecology
C181 - Biodiversity
C182 - Evolution

description: The aim of this study is to investigate the colouration of parrots in an evolutionary context utilising novel metrics for the quantification of colour pattern. Previously, the study of animal colouration has been limited by its inability to produce statistically robust and objective measures of pattern. We propose the use of image correlograms, a method adapted from the field of computer science where it is used in the indexing and retrieval of images for search engines, in order to evaluate the whole colour pattern of parrot species as taken from field guides. This is the largest study of parrot colouration in terms of number of species included in the study (403) and includes the ancestral reconstruction of the original parrot’s colouration as well as how colouration has changed over time. Finally, the information gained on the parrots’ colouration is applied to an issue of pressing concern for those studying the conservation of parrots, how differences in colour pattern relates to conservation status.
An analysis of scientific poverty line of Iranian researchers and compared with top scientists of Islamic countries
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: To study the scholarly production of Iran in the basic sciences and identify the place of the country among Islamic countries and the world, and also comparing the different disciplines in this field of knowledge, help to plan properly to provide necessary facilities for the advancement in these areas. The purpose of this study is the analysis of scientific poverty line of Iranian scientists and comparing them to the scientists of the superior Islamic countries. This is an applied research. Data were gathered and analyzed with the descriptive approach. In this study data collected from ISI during 1990 to 2011. Five disciplines of basic sciences, including mathematics, physics, chemistry, biology and earth science were studied. Yi and Xi and Sx scientometrics indicators were used. Based on the findings of this research, Iran with 35542 documents, academic ability 0.509 % and the relative performance of 0.468% is in the first place among the Islamic countries. Iran also is in the first place in physics, chemistry, earth science and mathematics and in second place in biology among the Islamic countries. Despite Iran's ranking first among Muslim countries, it is below the scientific poverty line in terms of Xi and Sx indicators. So it seems necessary to pay more attention to production and distribution of basic science especially in biology. The weaknesses and barriers also should be recognized.
Investigation of Multi-Robots Food Foraging Efficiency with an Artificial Pheromone System
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: In nature, the pheromone released by social insects is crucial for communication, whichhas become a rich inspiration source of swarm robotics. By utilising the virtualpheromone in physical swarm robot system, we can coordinate individuals and simulatebehaviours of social insects. This thesis aims to investigate two influences, i.e., theleader and the wind effects on multi-robots’ food foraging efficiency in an artificialpheromone system, wherein the pheromone is represented by light spots or trails on aTV screen. To investigate the leader effect, we remotely controlled a robot agent as aleader to guide other wandering agents to reach a food source with persistent virtualpheromone and then aggregate around it; the released pheromone by the leader couldbe sensed by other mates so that triggering following behaviour. We compare theaggregation efficiency with the scenarios without a leader robot agent. After that, wesimulated wind effects on the virtual pheromone affecting its evaporation and diffusion.The experimental results demonstrate that without interacting with the leader, theaggregation efficiency is highly depending on start positions of follower agents withineach experiment. The potential of using the leader interaction with the other robots canimprove the swarm efficiency under the same experimental setting. Moreover, theexperimenting results of wind effects on the artificial pheromone system and the foodforaging simulation demonstrate the wind has the power to influence the food foragingefficiency, which cannot be ignored. This research indicates that the leader and the windeffects are important factors affecting the pheromone-based swarm efficiency.
Impacts of sediment on kanae grey mullet
Creators: name: Hickford, Mike
name: Melchior, Michele
name: Mayall-Nahi, Melanie
Publisher: name: AgResearch
Year: 2024
Subjects: classificationCode: 41
subject: Environmental sciences

description: This is one of a collection of 11 fact sheets bringing together existing scientific information on the impacts of sediment on freshwater and estuarine fish used for mahinga kai.These fact sheets bring together existing scientific information on these effects, along with expert scientific knowledge, in an easy-to-read format by community groups and land-water managers interested in protecting mahinga kai.The sensitivity of each of 11 species of fish are summarised on a dial from low to high. The assessment is made by considering the influence of sediment on habitat, behaviour, feeding, growth and survival, all in the context of background information such as the life cycle and places where the species are usually found. Scientific references are provided for further detail. Readers might also be interested in the Taonga Species Fact Sheets which provide a broader range of information on selected species.
Generation and Electric Control of Spin-Coupled Valley Current in WSe2
Creators: name: Yuan, Hongtao
name: Wang, Xinqiang
name: Lian, Biao
name: Zhang, Haijun
name: Fang, Xianfa
name: Shen, Bo
name: Xu, Gang
name: Xu, Yong
name: Zhang, Shou-Cheng
name: Hwang, Harold Y.
name: Cui, Yi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The valley degree of freedom in layered transition-metal dichalcogenides (MX2) provides the opportunity to extend functionalities of novel spintronics and valleytronics devices. Due to spin splitting induced by spin-orbital coupling (SOC), the non-equilibrium charge carrier imbalance between two degenerate and inequivalent valleys to realize valley/spin polarization has been successfully demonstrated theoretically and supported by optical experiments. However, the generation of a valley/spin current by the valley polarization in MX2 remains elusive and a great challenge. Here, within an electric-double-layer transistor based on WSe2, we demonstrated a spin-coupled valley photocurrent whose direction and magnitude depend on the degree of circular polarization of the incident radiation and can be further greatly modulated with an external electric field. Such room temperature generation and electric control of valley/spin photocurrent provides a new property of electrons in MX2 systems, thereby enabling new degrees of control for quantum-confined spintronics devices.
description: 21 pages, 5 figures
Evaluation of the central libraries information security management at governmental universities located in Tehran, according to the international standard ISO/IEC 27002
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: This study assessed the evaluation of information security management status in central Libraries of governmental universities located in Tehran, according to ISO / I.E.C. 27002. Research method applied for the study is descriptive Survey and a questionnaire was used for collecting information. The questionnaire was distributed between the 74 central library managers of governmental universities in Tehran according to the recent list on the website of Ministry of Science, Research and Technology, that includes 39 components based on 11 indicators of the standard ISO/ I.E.C. 27002. Analysis of data has been done by using both descriptive and inferential statistics by Microsoft Excel 2007and SPSS statistical softwares. The results of research showed that the mean for libraries in 11 indexes are as follows: The mean for the first index, Security policy, is 3.91 , in the second index, organization of information security, is 4.23, in the third index, asset security management, is 4.38, in the fourth index, Human Resources Security management, is 4, in the fifth index, physical and environment Security management, is 4.07, in the sixth index, operations management and communications, is 4.15, in the Seventh index, access controls management, is 4.38, in the eighth index, information system acquisition, development and maintenance, is 3.92, in the ninth index, information security incident management, is 3.84, in the tenth index, business continuity management, is 3.46, in the eleventh index, compliance, is 3.69 that match with the standard ISO / IEC. 27002. The results of Research shown that totally mean for standard ISO/I.E.C. 27002 in the field of information security management in the central libraries, is 4 being in a good condition and there is no significant differences between the performance of the Central libraries of the governmental Universities in Tehran, since It is not observed significant difference between them in the field of information security management according to ISO IEC. 27002.
Mapping and Visualization of the Distribution of Scientific Wealth in Iran
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: This research addresses the issues of measuring the geographic distribution of scientific wealth in Iranian provinces. It focuses on mapping and visualization of scientific production and use in the country. The share of each province in the national scientific wealth of Iran has been measured through counting the documents indexed and retrieved from IRANDOC bibliographic databases. The seven specialized databases of IRANDOC include journal articles, conference articles, theses, governmental reports and so on consisting over half a million bibliographic records. Dividing the provinces in three classes of poor, average and rich according to their contribution in Iranian scientific wealth, Tehran and Isfahan provinces were tagged as the richest. A comprehensive description on developing a GIS model to visualize the distribution of scientific wealth in Iran is given in the paper and results are interpreted. In each case, the search results have analyzed more via a post-query spatial analysis for extraction of locations and comparing the extracted locations with a national gazetteer in order to find the proper province(s) for each single retrieved record. Using an interactive map, the share of each province in the retrieved results was illustrated on map and compared with the other provinces. It has been noticed that a combination of online or offline interactive maps e.g. Google Maps and Google Earth and geographically tagged bibliographic data can result in a location-aware search and retrieval tool where in-depth analysis of search results will be possible. The outcomes of this research can be used in planning for sustainable and balanced development of the country.
Interface Tension and Interface Entropy in 2+1 Flavour Nambu-Jona-Lasino Model
Creators: name: Ke, Wei-yao
name: Liu, Yu-xin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the QCD phases and their transitions in 2+1 flavour NJL model, with focus on the interface effects such as the interface tension, the interface entropy and critical bubble size in the coexistence region of the first order phase transitions. Our results show that, under the thin-wall approximation, interface contribution to total entropy density changes its discontinuity scale in the first order phase transition. However, the entropy density of dynamical chiral symmetry (DCS) phase is always greater than that of the dynamical chiral symmetry broken (DCSB) phase in both heating and hadronization processes. To address this entropy puzzle, the thin-wall approximation is evaluated in the present work. We find that the puzzle can be attributed to a drastic overestimate of the critical bubble size at low temperature in the hadronization process. With an improvement on the thin-wall approximation, the entropy puzzle is well solved with the total entropy density of the hadron-DCSB phase exceeding apparently that of the DCS-quark phase at low temperature.
description: 10 pages, 15 figures
Impacts of sediment on kahawai
Creators: name: Hickford, Mike
name: Melchior, Michele
name: Mayall-Nahi, Melanie
Publisher: name: AgResearch
Year: 2024
Subjects: classificationCode: 41
subject: Environmental sciences

description: This is one of a collection of 11 fact sheets bringing together existing scientific information on the impacts of sediment on freshwater and estuarine fish used for mahinga kai.These fact sheets bring together existing scientific information on these effects, along with expert scientific knowledge, in an easy-to-read format by community groups and land-water managers interested in protecting mahinga kai.The sensitivity of each of 11 species of fish are summarised on a dial from low to high. The assessment is made by considering the influence of sediment on habitat, behaviour, feeding, growth and survival, all in the context of background information such as the life cycle and places where the species are usually found. Scientific references are provided for further detail. Readers might also be interested in the Taonga Species Fact Sheets which provide a broader range of information on selected species.
Transdiegetic Sound and auditory immersion in an asymmetrical cooperative game
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: This research is looking to determine how sound interaction, in particular transdiegeticsound, as a core mechanic affects player immersion in an asymmetrical cooperative game.Sound design is crucial for increasing player immersion within single player gameexperiences, but the issues arises in a multiplayer context where communicating with otherplayers can break this in-game immersionThere is rich potential of exploring the game design possibilities of separating the sensorymodalities between two players and exploring how the restricted information is conveyedand consequently how this affects player immersion. This research expands upon this byexamining the interplay between four game design patterns; transdiegetic sound, playercommunication, asymmetrical gameplay and immersive experiences.This project developed a game which requires one player to wear a pair of headphones andbe prevented from viewing the game screen. The other player is able to see the gamescreen and have the controls to move around the game environment but is not able to hearaudio cues from within the virtual space; this only being audible to the player wearing theheadphones. The research suggests that the novel design approach highlights how currentmethods of measuring player immersion such as questionnaires may not always beappropriate due to the assumptions they contain within the questions they ask.The results also suggests that whilst the relationship between transdiegetic sound andasymmetrical gameplay may not appear to be significant, there is an interplay betweenthese mechanics that influences the immersive experience for the player. This projectproposes that future work considers this interplay and avoids attempting to analyse how adesign pattern determines player immersion in isolation but that it considers how itbehaves it relation to the other design choices within the game.
Discussion of "Estimating the historical and future probabilities of large terrorist events" by Aaron Clauset and Ryan Woodard
Creators: name: Cui, Qiurong
name: Rohe, Karl
name: Zhang, Zhengjun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Discussion of "Estimating the historical and future probabilities of large terrorist events" by Aaron Clauset and Ryan Woodard [arXiv:1209.0089].
description: Published in at http://dx.doi.org/10.1214/13-AOAS614F the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The carbon footprint of conference papers: Replication package
Creators: name: Spinellis, Diomidis
name: Louridas, Panos
Publisher: name: Zenodo
Year: 2018
Subjects: CO2 emissions
Replication package
Conference travel

description: This is a replication package associated with the following paper.

Diomidis Spinellis and Panos Louridas. The carbon footprint of conference papers. PLoS ONE, 8(6):e66508, May 2013. (doi:10.1371/journal.pone.0066508)

Abstract: The action required to stem the environmental and social implications of climate change depends crucially on how humankind shapes technology, economy, lifestyle and policy. With transport CO2 emissions accounting for about a quarter of the total, we examine the contribution of CO2 output by scientific travel. Thankfully for the reputation of the scientific community, CO2 emissions associated with the trips required to present a paper at a scientific conference account for just 0.003% of the yearly total. However, with CO2 emissions for a single conference trip amounting to 7% of an average individual’s total CO2 emissions, scientists should lead by example by demonstrating leadership in addressing the issue.

The replication package contains the software code and data for populating the associated database and performing the analysis.
Study of knowledge sharing and university libraries website management in Tehran City
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: Knowledge sharing (KS) is a process through which individuals mutually exchange their knowledge with each other and potentially through this process, opportunity for learning new experiences, training and implementing experience, skills and abilities are provided. Therefore, KS is important for various organizations. Accordingly, and because of the importance of KS, this research studies the status of KS and management of public universities’ central libraries websites in Tehran city. Survey method is pilot-descriptive and research tool is a questionnaire. Research community is staffs and stakeholders who are working or commenting on websites. Results of research show that sharing knowledge and influencing factors (including individual factors, organizational and information technology) in the study population have a more favorable situation. Findings indicate that among the above three factors, organizational factors than other factors are more barriers on KS. Website management does not have good situation and website management by libraries and good condition, by a library is limited to content part and other parts of technical and structural are managed by the University’s IT Section. Employee’s capabilities and skills that could be effective on working with the website and KS do not have good situation, especially in website’s structural and technical parts and staffs have more skill for working with the content of website. In all, although KS has a good situation among staffs, but KS and management of website is not coherent, dynamic and efficient.
Rejoinder of "Estimating the historical and future probabilities of large terrorist events" by Aaron Clauset and Ryan Woodard
Creators: name: Clauset, Aaron
name: Woodard, Ryan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Rejoinder of "Estimating the historical and future probabilities of large terrorist events" by Aaron Clauset and Ryan Woodard [arXiv:1209.0089].
description: Published in at http://dx.doi.org/10.1214/13-AOAS614R the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
No Semiconjugacy to a Map of Constant Slope
Creators: name: Misiurewicz, Michał
name: Roth, Samuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E05 (primary), 37E10 (secondary)

description: We study countably piecewise continuous, piecewise monotone interval maps. We establish a necessary and sufficient criterion for the existence of a nondecreasing semiconjugacy to a map of constant slope in terms of the existence of an eigenvector of an operator acting on a space of measures. Then we give sufficient conditions under which this criterion is not satisfied. Finally, we give examples of maps not semiconjugate to a map of constant slope via a nondecreasing map. Our examples are continuous and transitive.
Mapping the domain of human information behaviour theories
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: The aim of this research was to obtain a better\nunderstanding of the domain of human information behaviour\nand map the domain. For this, 51 theories were selected and\ntheir bibliographic information was obtained from Web of\nScience and then citation analysis and bibliographic coupling\nanalysis were performed. Pajek, HistCite, Sci2 Tool and\nVOSViewer software were used for analysis and visualization.\nThe results showed that most of the theories were proposed by\nAmericans and by information scientists. A few of the theories\nwere proposed by scientists from the fields of sociology,\npsychology, computer scientists and a few other disciplines.\nCitation analysis showed that the theories mainly cited library\nand information science sources, however, there were also\ncitations to the sources of another 29 other fields especially to\nsociology, communication, psychology, management,\neducational sciences and computer science. Bibliographic\ncoupling map showed that about four fifths of the theories\nwere linked to each other as a whole network. Some works\nwere more strongly coupled including Ellis and Bates,\nIngwersen and Hjørland, Ingwersen and Sandstrom, and\nHjørland and Kuhlthau. Historiography of the works showed\nthat works by Chatman, Taylor and Kuhlthau has played an\nimportant role in linking older theories to more recent works.\nWithin the 51 theories works by Taylor, Ellis, Bates and\nKuhlthau received more citations than the others.
Quantum dot opto-mechanics in a fully self-assembled nanowire
Creators: name: Montinaro, M.
name: Wüst, G.
name: Munsch, M.
name: Fontana, Y.
name: Russo-Averchi, E.
name: Heiss, M.
name: Morral, A. Fontcuberta i
name: Warburton, R. J.
name: Poggio, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that fully self-assembled optically-active quantum dots (QDs) embedded in MBE-grown GaAs/AlGaAs core-shell nanowires (NWs) are coupled to the NW mechanical motion. Oscillations of the NW modulate the QD emission energy in a broad range exceeding 14 meV. Furthermore, this opto-mechanical interaction enables the dynamical tuning of two neighboring QDs into resonance, possibly allowing for emitter-emitter coupling. Both the QDs and the coupling mechanism -- material strain -- are intrinsic to the NW structure and do not depend on any functionalization or external field. Such systems open up the prospect of using QDs to probe and control the mechanical state of a NW, or conversely of making a quantum non-demolition readout of a QD state through a position measurement.
description: 20 pages, 6 figures
The stability, electronic structure, and optical property of TiO2 polymorphs
Creators: name: Zhu, Tong
name: Gao, Shang-Peng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phonon density of states calculation shows that a new TiO2 polymorph with tridymite structure is mechanically stable. Enthalpies of 9 TiO2 polymorphs under different pressure are presented to study the relative stability of the TiO2 polymorphs. Band structures for the TiO2 polymorphs are calculated by density functional theory with generalized gradient approximation and the band energies at high symmetry k-points are corrected using the GW method to accurately determine the band gap. The differences between direct band gap energies and indirect band gap energies are very small for rutile, columbite and baddeleyite TiO2, indicating a quasi-direct band gap character. The band gap energies of baddeleyite (quasi-direct) and brookite (direct) TiO2 are close to that of anatase (indirect) TiO2. The band gap of the newly predicted tridymite-structured TiO2 is wider than the other 8 polymorphs. For optical response calculations, two-particle effects have been included by solving the Bethe-Salpeter equation for Coulomb correlated electron-hole pairs. TiO2 with cotunnite, pyrite, and fluorite structures have optical transitions in the visible light region.
description: 26 pages, 9 figures
Evaluating creativity elements in the central library websites of universities dominated by the ministry of science, research, and technology
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: The main objective of this research was to evaluate creativity components in the central library websites of the universities dominated by the Ministry of Science, Research, and Technology (MSRT) of Iran to improve those components in university libraries. Research population included 35 library websites of the mentioned universities which had a separate homepage for their central libraries. Data were gathered by the use of a checklist that was made by researcher based on literature. This checklist contained the dimensions of creativity in university libraries websites. It encompassed 30 creativity components which were categorized under 4 main dimensions: originality (novelty, uniqueness), form (design and aesthetics), function (interest, usefulness, usability, and personalization), and source (motivation, and creative skills). To test the content validity of the checklist, it was sent to 9 specialists to gather their views. The results indicated that 3 library websites (Zanjan University, University of Mazandaran, and Tehran University), were gained top ranks. In the other hand, the central library websites of 3 others (Babol Noushirvani University of Technology, Tarbiat Moallem Azarbayejan University, and Birjand University) were at the end of ranking scale of creativity. Only 9 out of 35 investigated websites (including Zanjan University, University of Mazandaran, Tehran University, Imam Khomeini International University, Ferdowsi University of Mashhad, Isfahan University of Technology, University of Sistan & Baluchestan, University of Tabriz and Arak university) were in desired conditions of creativity components. Findings showed that, out of 4 creativity dimensions (originality, form, function, and source) evaluated, 65.71% of components of source dimension (the most) and 40% of function dimension one (the least) were available in the 35 central library websites of investigated universities. The results also revealed that there was a significant correlation between the ranking of the central library websites of MSRT and the ranking of the same universities websites regarding the receiving links (at α=0.05).
Interrelationships among RN staffing, perceived workload, practice environment, and burnout among emergency department nurses
Creators: name: Brassington, Sharmine U.
Publisher: name: No Publisher Supplied
Year: 2024

description: Burnout among registered nurses (RN) is an ongoing nurse workforce issue. Yet, there are no quantifications of the impact of RN staffing, perceived workload, and practice environment on burnout among registered nurses in emergency departments.Purpose: This study examined the interrelationships among RN staffing, perceived workload, practice environment, and burnout among hospital-based emergency department nurses in New Jersey (NJ).Hypotheses: Six hypotheses were tested: 1) Low RN staffing is significantly associated with high burnout; 2) High perceived workload is significantly associated with high burnout; 3) Unsupportive nurse practice environments are significantly associated with high burnout; 4) Low RN staffing, high perceived workloads, and unsupportive practice environments are independent predictors of high burnout; 5) Unsupportive practice environments mediate the relationship between a) RN staffing and burnout, and b) perceived workload and burnout.Methods: This study used a cross-sectional, correlational, survey design. Using a publicly available list of RNs licensed in NJ, potential participants were recruited via an email invitation that included a link to the electronic survey. A single-item measure of burnout was used. RN staffing was assessed as patient-to-RN ratios with a single item: How many patients were assigned to you on your last day of work? The Perceived Workload subscale of the Individual Workload Perception Scale was used to measure RN workload. The Practice Environment Scale was used to measure practice environment support. Results: One hundred eighty-eight hospital-based emergency department RNs comprised the study sample. Seventy-two percent of participants reported moderate to complete burnout. One out of three nurses (34%) reported sustained or complete burnout. Patient-to-RN ratios were not significantly associated with burnout. Perceptions of high workloads and unsupportive practice environment ratings had significant independent direct effects on the odds of high burnout. An unsupportive practice environment significantly mediated an indirect relationship between high perceived workload and high burnout. The practice environment did not mediate an indirect effect of patient-to-RN ratios on burnout.Conclusion: To reduce burnout among hospital-based emergency department RNs, findings from this study point to a pressing need for hospital and emergency department leadership to implement strategies designed to improve the practice environment and decrease RN workloads.
Evaluation of User Interface of DL + Federated Search Engine from the Perspective of M.A / M.S.C Students in Al-Zahra University in order to Provide Federated Search Engines User Interface Pattern
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: The aim of the study is investigate the Federated search engine user interface criteria from perspective of Al-Zahra post graduate students. In this research, survey analysis has been used. The study populations were all post graduate students of Al-Zahra University. Because of the extensive community, stratified random and relative sampling was used and total 330 students were accepted as Sample that only 303 people participated in this study. For data collection a researcher made questionnaire designed.The criteria from literature study. The results of the questionnaire by using SPSS software (version 20) and Excel 2007 application were analyzed.\nThe results showed that the major component from graduate students' perspective is guidance and navigation and searched filter components. Results indicate that more than 50 percent of students the importance of 74 criteria of 96 criteria considered high and very high and, (therefore) the majority of the criteria in the study from the viewpoints are acceptable. However, findings also showed that among the four components of this study, the search filter, display and record review, consolidation and guidance is a positive relation, and between the views of different faculties is not significant difference about the importance of criterias and components.
The Survey of Viewpoint of Teleworkers in Department of Information Processing about Advantages and Disadvantages of Teleworking
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: Abstract: Information and communication technology has had effects on the different aspects of living, like working ways. One of these effects is to work anywhere, far away office and without geographical limitation. This working method has advantages and disadvantages that can affect on its performance and contituity in organizations and offices. This article reviewed shortly the literature of teleworking and the advantages and disadvantages of teleworking, then surveyed the viewpoint of teleworkers in department of information processing in National Libray and Archives of I.R. of Iran. The results showed that teleworking had benefits and porblems in this department and despite of that fact (especially weakness in techonogical infrastructs), all of teleworkers in research population (100%) tended continue teleworking. Teleworkers had a high satisfaction of teleworking (5/53).
Raman scattering study of InAs nanowire under high pressure
Creators: name: Majumdar, Dipanwita
name: Basu, Abhisek
name: Mukherjee, Goutam Dev
name: Ercolani, Daniele
name: Sorba, Lucia
name: Singha, Achintya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The pressure dependent phonon modes of predominant wurtzite InAs nanowires has been investigated in a diamond anvil cell under hydrostatic pressure up to 58 GPa. The TO and LO at Gamma point and other optical phonon frequencies increase linearly while the LO TO splitting decreases with pressure. The recorded Raman modes have been used to determine the mode Gruneisen parameters and also the value of Borns transverse effective charge. The calculated Borns transverse effective charge exhibits a linear reduction with increasing pressure implying an increase in covalency of nanowires under compression. The intensity of the Raman modes shows a strong enhancement as the energy of E1 band gap approaches the excitation energy, which has been discussed in terms of resonant Raman scattering. An indication of structural phase transformation has been observed above pressure 10.87 GPa. We propose this transformation may be from wurtzite to rock salt phase although further experimental and theoretical confirmations are needed.
description: 20 pages, 6 figures, 1 table
Developing a More Comprehensive SOA Governance Framework by Using a Comparative Study Approach
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: Many companies have adopted Service-Oriented Architecture (SOA) as an approach to improve agility and increase performance of system development.However, deploying SOA has been encountered to some challenges and problems including difficulties in designing effective decision structures and building a SOA roadmap, lack of service funding and lack of consistent governance processes. Therefore, to address SOA challenges, organizations require a comprehensive and applicable SOA governance framework to implement management and control mechanisms. Study of existing SOA governance frameworks reveals that these frameworks are not expressive enough to cover all important elements of SOA governance and also, the y have very little discussions and clarifications regarding underpinning structures such as SOA processes and activities, governance procedures and measurement metrics. In this paper, in the process of proposing a new SOA governance framework, a set of important elements for a desired SOA governance framework is proposed. Based on these elements, a more comprehensive and expressive framework is developed based on governance structure of COBIT. It focuses on covering SOA governance elements and resolving the shortcomings of the existing frameworks and can delivers an appropriate solution to help enable effective SOA governance.
Framework for Knowledge Management Processes in Supply Chain
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: The main goal of this study is to provide a framework for knowledge management processes in supply chain of automotive industry in iran. This is an applied research and has done as a survey in Iran Khodro and Saipa Company as the largest companies in automotive industry of Iran. In this study 206 experts participated. Reliability methods were cronbach's Alfa and validity tests were content construction and discriminant analysis. To response to 1 main question and 5 sub questions in this research first and second confirmative factor analysis and correlation test were used. During the research it found that the introduced framework has a perfect construct and discriminantvalidity in supply chain of automotive industry of Iran. In this framework 4 main processes and 1 complementary process are identified. Then through the technique of factor analysis these processes and their indicators were analyzed.\nResults showed that all these processes are essential for supply chainandin order of importance are: 1)Transfer sharing and distribution 2)Use application and exploiting 3)Acquisition creation and generate knowledge 4)Organization and storage and 5) Evaluation and Feedback (this process was a complementary process in this framework).\nThe innovation aspect of the research is to provide a comprehensive framework for knowledge management processes in supply chain of automotive industry with main indicators for each process.\nSeveral investigations have been made for knowledge management but specific research on knowledge management processes in the supply chain has not been observed. Thus providing the framework and indicators for each component of the framework is the innovation of the research
Thematic Discovery Marketplaces for the European Open Science Cloud
Creators: name: Appleton, Owen
name: Andreas, Petzold
name: Graf, Kay
name: Goble, Carole
name: Fischer, Frank
name: Richter, Tobias
name: Willems, Marieke
Publisher: name: Zenodo
Year: 2020

description: This session aimed to showcase the ecosystem of thematic marketplaces for the EOSC and their role as aggregators. EOSChub kickstarted the session by painting the landscape of science discovery marketplaces. All 5 EOSC cluster projects highlighted how each of their value propositions relate to the EOSC portal based on key lines of activities that cluster projects for aggregation. Such as UX design & development, content & sources, curation & governance. We’ll discover the similarities and differences in these approaches, share best practices and identify possibilities for future collaborations. Agenda: The EOSC ecosystem of open science marketplaces - from EOSC-hub to EOSC Future - Owen Appleton (EGI, EOSC-hub) Discussion Thematic Discovery Marketplaces for the European Open Science Cloud SSHOC: SSH Open Marketplace - Frank Fischer (DARIAH) EOSC-Life: Registries for software and workflows - Carole Goble (University of Manchester) ESCAPE: software and service repository - Kay Graf (Friedrich-Alexander University Erlangen-Nuremberg, ECAP) PANOSC: Federated Catalog service - Tobias Richter (European Spallation Source) ENVRI-FAIR Data/service catalogue- Andreas Petzold (Forschungszentrum Jülich GMBH) Conclusions - Owen Appleton (EGI, EOSC Enhance)