cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized Convexity Properties and Shape Based Approximation in Networks Reliability
Creators: name: Cristescu, Gabriela
name: Dragoi, Vlad-Florin
name: Hoara, Sorin-Horatiu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: Some properties of generalized convexity for sets and for functions are identified in case of the reliability polynomials of two dual minimal networks. A method of approximating the reliability polynomials of two dual minimal network is developed based on their mutual complementarity properties. The approximating objects are from the class of quadratic spline functions, constructed based both on interpolation conditions and on shape knowledge. It is proved that the approximant objects preserve the shape properties of the exact reliability polynomials. Numerical examples and simulations show the performance of the algorithm, both in terms of low complexity, small error and shape preserving. Possibilities of increasing the accuracy of approximation are discussed.
description: 22 pages, 5 figures, 5 tables
APPRAISAL OF FAMILY-FRIENDLY TOURISM IN MALAYSIA
Creators: name: Habibah, A.
name: Hamzah, J.
name: Er, A.C
name: Buang, A.
name: Selvadurai, S.
Publisher: name: tourismos
Year: 2015

description: Family tourism is a growing market even though it is understudied and unexplored in Malaysia. Given the rising purchasing power and quality of life among families, and little work has been done on exploring these family friendly policies and their implementations, this article aims to uncover to what extent that family-friendly policies are implemented in Malaysia. This article utilised a descriptive method with qualitative data from historical writings, tourism reports and research findings concerning the participation of family tourists. This study revealed that the policies and implementations of family tourism are of different level of concern among various stakeholders. At the national level, families are encouraged at both explicit and implicit initiatives, while at the tourism providers families characters are commoditised as tourism products. The changing demand of families received attentions from the tourism providers as well as from the governmental agencies. The setting up of a comprehensive guideline on familyfriendly destination should stand as a competitive edge in promoting family tourism.
description: tourismos, Vol. 10 No. 1 (2015)
Keller--Osserman conditions for diffusion-type operators on Riemannian Manifolds
Creators: name: Mari, Luciano
name: Rigoli, Marco
name: Setti, Alberto G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58J05, 35J60

description: In this paper we obtain generalized Keller-Osserman conditions for wide classes of differential inequalities on weighted Riemannian manifolds of the form $L u\geq b(x) f(u) \ell(|\nabla u|)$ and $L u\geq b(x) f(u) \ell(|\nabla u|) - g(u) h(|\nabla u|)$, where $L$ is a non-linear diffusion-type operator. Prototypical examples of these operators are the $p$-Laplacian and the mean curvature operator. While we concentrate on non-existence results, in many instances the conditions we describe are in fact necessary for non-existence. The geometry of the underlying manifold does not affect the form of the Keller-Osserman conditions, but is reflected, via bounds for the modified Bakry-Emery Ricci curvature, by growth conditions for the functions $b$ and $\ell$. We also describe a weak maximum principle related to inequalities of the above form which extends and improves previous results valid for the $\vp$-Laplacian.
title: Investigation of the Molecular Mechanisms of the Shigella Type III Secretion System Tip Complex
Creators: name: Bernard, Abram R.
Publisher: name: Utah State University
Year: 2018

description: Shigella are bacteria that are responsible for millions of infections and hundreds of thousands of deaths every year. The emergence of antibiotic resistant Shigella adds to the potentially devastating effect that these bacteria can have on human health. Shigella flexneri utilize specialized molecular machinery called the Type III secretion system to infect humans and cause disease. Research of this machinery promises to provide the knowledge, tools, and direction for the development of new avenues to combat shigellosis. This dissertation presents studies of two Shigella proteins, invasion plasmid antigens C and D (IpaC and IpaD). These proteins are part of a syringe and needle like protein structure that allows Shigella to secrete proteins directly into the host that hijack host cells to benefit support Shigella infections. IpaC and IpaD are part of a protein tip complex that is directly involved in these Shigella-host (e.g. human) interactions. We have advanced the biochemical tools for the in vitro study of IpaC by utilizing a new way to isolate it. This purification methodology allowed us to look at one of IpaC’s main roles, to interact with the host cell membranes. We examined IpaC’s role and tried to identify the parts of IpaC responsible for some specific interactions. We found that the parts of IpaC we believed were responsible were not but that the composition of the membrane IpaC is interacting with is more important than we previously believed. Finally, we examined a rare part of IpaD structure to determine its role. We determined that this rare feature is required for IpaD to sense Shigella’s host environment and prepare the bacteria to infect, making a promising target for anti-infective treatments against Shigella infections. Our findings advance the understanding of key molecular mechanisms that are required for Shigella virulence. We expect that our findings will aid future researchers as the pursuit for new treatments for shigellosis continues.
title: Complicaciones de los trasplantes de médula ósea en edad pediátrica
Creators: name: López Carballeira, Andrés
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ultrasound
subject: CT
subject: MR
subject: Paediatric

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Evaluar la incidencia de complicaciones tras el trasplante de progenitores hematopoyéticos realizado en edad pediátrica,
así como describir sus manifestaciones en las diferencias técnicas de imagen y destacar las aportaciones de la radiología...
A STUDY ON COMPARISON OF DIETARY APPROACHES AND MEDICATION COSTS FOR HYPERTENSION TREATMENT
Creators: name: Ankit Sharma
name: Yogesh Joshi
name: Saurabh Agarwal
Publisher: name: Zenodo
Year: 2024
Subjects: Hypertension, DASH, Blood Pressure, Dietary Approaches, Medication Costs.

description: Abstract

Hypertension, often termed the silent killer, is a condition marked by elevated blood pressure that poses significant health risks. Studies have established that high serum sodium levels elevate blood pressure, while potassium, magnesium, and vitamins, found abundantly in fruits, vegetables, nuts, low-fat dairy products, fish, and poultry, lower blood pressure. The DASH (Dietary Approaches to Stop Hypertension) diet, which emphasizes these foods, has shown beneficial effects in reducing blood pressure in hypertensive patients. This study involves 50 hypertensive patients, assessing lifestyle risk factors, blood pressure levels before and after adopting the DASH diet, and comparing the costs of dietary versus medication approaches. Results indicate that adherence to the DASH diet significantly reduces blood pressure, presenting a viable, cost-effective alternative to medication therapy.
title: Maternal Depression in the United States: A Geographic Comparison Between Geographic Regions and Rurality
Creators: name: Patterson, Samantha J.
Publisher: name: Utah State University
Year: 2018

description: Health disparities exist between rural and urban areas but geographic comparisons of mental health are less studied and conclusive. Maternal depression has not been examined by region or rurality in the United States but might be influenced by geographic locations due to the variance of social support and healthcare available in some locations compared to others. The research focuses on (1) whether rurality increases a mother’s risk of experiencing depression and (2) if region impacts a mother’s risk of depression. I used the NESARC-III data that included three general depressive disorders: major depressive episode, major depressive disorder, and dysthymia. Regions are divided into the Northeast, Midwest, South, and the West. Rurality includes rural and urban locations. Certain demographic variables are included to control for variations by location. The research is a secondary analysis of the NESARC-III data so the research costs are limited. The statistical analysis uses step-wise logistic regression models.
The study finds that mothers do not experience depressive disorders differently between regions or rural/urban locations. A check analyzing all females shows that living in the West increases a woman’s risk of experiencing both major depressive episodes and major depressive disorders. Variables explaining the most variation between having and not having a depressive disorder are the social support variables.
title: Cirugía de la epilepsia refractaria RM en la valoración pre y postquirúrgica.
Creators: name: Ortega Hernández, Carlos Alberto
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Seizure disorders
subject: Diagnostic procedure
subject: MR-Functional imaging
subject: MR-Diffusion/Perfusion
subject: MR
subject: Neuroradiology brain

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
La epilepsia refractaria (ER) consiste en crisis epilépticas no controladas tras el tratamiento adecuado con dos fármacos antiepilépticos elegidos,
pautados y tolerados adecuadamente.
Se considera ER no controlada cuando aparecen crisis a lo...
A Hop-by-Hop Congestion-Aware Routing Protocol for Heterogeneous Mobile Ad-hoc Networks
Creators: name: Narasimhan, B.
name: baboo, S. Santhosh
Publisher: name: arXiv
Year: 2009
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In Heterogeneous mobile ad hoc networks (MANETs) congestion occurs with limited resources. Due to the shared wireless channel and dynamic topology, packet transmissions suffer from interference and fading. In heterogeneous ad hoc networks, throughput via a given route is depending on the minimum data rate of all its links. In a route of links with various data rates, if a high data rate node forwards more traffic to a low data rate node, there is a chance of congestion, which leads to long queuing delays in such routes. Since hop count is used as a routing metric in traditional routing, it do not adapt well to mobile nodes. A congestion-aware routing metric for MANETs should incorporate transmission capability, reliability, and congestion around a link. In this paper, we propose to develop a hop-by-hop congestion aware routing protocol which employs a combined weight value as a routing metric, based on the data rate, queuing delay, link quality and MAC overhead. Among the discovered routes, the route with minimum cost index is selected, which is based on the node weight of all the in-network nodes. Simulation results prove that our proposed routing protocol attains high throughput and packet delivery ratio, by reducing the packet drop and delay.
description: 7 pages, International Journal of Computer Science and Information Security, ISSN 1947 5500, Impact Factor 0.423
The Nature and Nurture of Star Clusters
Creators: name: Elmegreen, Bruce G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Star clusters have hierarchical patterns in space and time, suggesting formation processes in the densest regions of a turbulent interstellar medium. Clusters also have hierarchical substructure when they are young, which makes them all look like the inner mixed parts of a pervasive stellar hierarchy. Young field stars share this distribution, presumably because some of them came from dissolved clusters and others formed in a dispersed fashion in the same gas. The fraction of star formation that ends up in clusters is apparently not constant, but may increase with interstellar pressure. Hierarchical structure explains why stars form in clusters and why many of these clusters are self-bound. It also explains the cluster mass function. Halo globular clusters share many properties of disk clusters, including what appears to be an upper cluster cutoff mass. However, halo globulars are self-enriched and often connected with dwarf galaxy streams. The mass function of halo globulars could have initially been like the power law mass function of disk clusters, but the halo globulars have lost their low mass members. The reasons for this loss are not understood. It could have happened slowly over time as a result of cluster evaporation, or it could have happened early after cluster formation as a result of gas loss. The latter model explains best the observation that the globular cluster mass function has no radial gradient in galaxies.
description: to be published in IAUS266: Star Clusters Basic Galactic Building Blocks Throughout Time And Space, eds. Richard de Grijs and Jacques Lepine, Cambridge University Press, 11 pages
Memory hierarchy and data communication in heterogeneous reconfigurable SoCs
Creators: name: Vitkovskiy, Arseniy <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: ING-INF/01 Elettronica

description: The miniaturization race in the hardware industry aiming at continuous increasing
of transistor density on a die does not bring respective application performance
improvements any more. One of the most promising alternatives is to
exploit a heterogeneous nature of common applications in hardware. Supported by
reconfigurable computation, which has already proved its efficiency in accelerating
data intensive applications, this concept promises a breakthrough in contemporary
technology development.
Memory organization in such heterogeneous reconfigurable architectures becomes
very critical. Two primary aspects introduce a sophisticated trade-off. On
the one hand, a memory subsystem should provide well organized distributed data
structure and guarantee the required data bandwidth. On the other hand, it should
hide the heterogeneous hardware structure from the end-user, in order to support
feasible high-level programmability of the system.
This thesis work explores the heterogeneous reconfigurable hardware architectures
and presents possible solutions to cope the problem of memory organization
and data structure. By the example of the MORPHEUS heterogeneous platform,
the discussion follows the complete design cycle, starting from decision making
and justification, until hardware realization. Particular emphasis is made on the
methods to support high system performance, meet application requirements, and
provide a user-friendly programmer interface.
As a result, the research introduces a complete heterogeneous platform enhanced
with a hierarchical memory organization, which copes with its task by
means of separating computation from communication, providing reconfigurable
engines with computation and configuration data, and unification of heterogeneous
computational devices using local storage buffers. It is distinguished from the
related solutions by distributed data-flow organization, specifically engineered
mechanisms to operate with data on local domains, particular communication infrastructure
based on Network-on-Chip, and thorough methods to prevent computation
and communication stalls. In addition, a novel advanced technique to accelerate
memory access was developed and implemented.
turboEELS -- A code for the simulation of the electron energy loss and inelastic X-ray scattering spectra using the Liouville-Lanczos approach to time-dependent density-functional perturbation theory
Creators: name: Timrov, Iurii
name: Vast, Nathalie
name: Gebauer, Ralph
name: Baroni, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce turboEELS, an implementation of the Liouville-Lanczos approach to linearized time-dependent density-functional theory, designed to simulate electron energy loss and inelastic X-ray scattering spectra in periodic solids. turboEELS is open-source software distributed under the terms of the GPL as a component of Quantum ESPRESSO. As with other components, turboEELS is optimized to run on a variety of different platforms, from laptops to massively parallel architectures, using native mathematical libraries (LAPACK and FFTW) and a hierarchy of custom parallelization layers built on top of MPI.
Labyrinthum capellae.
Le "Annotationes in Marcianum" di Giovanni Scoto Eriugena e la fortuna del neoplatonismo cristiano
Creators: name: Rossini, Stefano <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: M-STO/01 Storia medievale

description: The labyrinthum Capella quoted in the title (from a Prudentius of Troyes epistle)
represents the allegory of the studium of the liberal arts and the looking for
knowledge in the early middle age. This is a capital problem in the early
Christianity and, in general, for all the western world, concerning the
relationship between faith and science. I studied the evolution of this subject
from its birth to Carolingian age, focusing on the most relevant figures, for the
western Europe, such Saint Augustine (De doctrina christiana), Martianus
Capella (De Nuptiis Philologiae et Mercurii) and Iohannes Scotus Eriugena
(Annotationes in Marcianum). Clearly it emerges that there were two opposite
ways about this relatioship. According to the first, the human being is capable of
get a knowledge about God thanks to its own reason and logical thought
processes (by the analysis of the nature as a Speculum Dei); on the other way,
only the faith and the grace could give the man the possibility to perceive God,
and the Bible is the only book men need to know.
From late antiquity to Iohannes Scotus times, a few christian and pagan authors
fall into line with first position (the neoplatonic one): Saint Augustine (first part
of his life, then he retracted some of his views), Martianus, Calcidius and
Macrobius. Other philosophers were not neoplatonic bat believed in the power
of the studium: Boethius, Cassiodorus, Isidorus of Seville, Hrabanus Maurus
and Lupus of Ferriéres.
In order to get an idea of this conception, I finally focused the research on
Iohannes Scotus Eriugena's Annotationes in Marcianum. I commented
Eriugena's work phrase by phrase trying to catch the sense of his words, the
reference, philosophical influences, to trace antecedents and its clouts to later
middle age and Chartres school.
In this scholastic text Eriugena comments the Capella's work and poses again
the question of the studium to his students. Iohannes was a magister in schola
Palatina during the time of Carl the Bald, he knew Saint Augustine works, and
he knew Boethius, Calcidius, Macrobius, Isidorus and Cassiodorus ones too. He
translated Pseudo-Dionysius the Areopagite and Maximus the Confessor. He
had a neoplatonic view of Christianity and tried to harmonize the impossibility
to know God to man's intellectual capability to get a glimpse of God through the
study of the nature. According to this point of view, Eriugena's comment of
Martianus Capella was no more a secondary work. It gets more and more
importance to understand his research and his mystic, and to understand and
really grasp the inner sense of his chief work Periphyseon.
title: The Nesting Ecology of Woodpeckers in the Eastern Cascades and Their Interactions with Nest Competitors and Predators
Creators: name: Cowell, Samuel D.
Publisher: name: Utah State University
Year: 2018

description: Woodpeckers create nesting cavities for other birds and animals in forests. This creates dynamic interactions between both woodpeckers and these other animals. Using video cameras, we documented direct behavioral interactions between nesting woodpeckers and other animals in the Eastern Washington Cascades during the 2015 and 2016 breeding seasons. Additionally, we offered 937 students in a General Biology laboratory course to participate in this original research opportunity and described and the impact the experience had on the participants as well as the researchers.
In 2015, Western Blubebirds took over two active Black-backed Woodpecker nests by physically attacking the woodpeckers. In 2016, almost half of the woodpecker nests were reused by other animals, with Western Bluebirds being are most common SCU. We found that some nests we reused within minutes to hours of vacancy. However, we were not able to significantly predict nest reuse or the presence of other animals at the nest. Parent woodpeckers towards avian cavity nesters when compared to rodent, predators, and other woodpeckers. Our fine-scale analysis provides a new window into behavioral interactions at woodpecker nests and same-season nest reuse, but it is limited by its scope. Thus, we suggest for larger-scale video studies examining behavioral interactions around the nest.
About 15% of students in the course participated in our research, and we found that students accurately recorded data approximately 90% of the time. Most students came away from the experience with a more positive attitude towards undergraduate research and were able to restate the main research question. However, many students had difficulty understanding their role as a data collector. We suggest making the experience mandatory to include all students and placing a greater emphasis on the process of science.
Colossal magnetocapacitive effect in differently synthesized and doped CdCr2S4
Creators: name: Krohns, S.
name: Schrettle, F.
name: Lunkenheimer, P.
name: Tsurkan, V.
name: Loidl, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the present work, we address the question of an impurity-related origin of the colossal magnetocapacitive effect in the spinel system CdCr2S4. We demonstrate that a strong variation in the dielectric constant below the magnetic transition temperature or in external magnetic fields also arises in crystals prepared without chlorine. This excludes that an inhomogeneous distribution of chlorine impurities at the surface or in the bulk material gives rise to the unusual effects in the spinel multiferroics. In addition, we show that colossal magnetocapacitive effects can be also generated in chlorine-free ceramic samples of CdCr2S4, doped with indium.
description: 4 pages, 3 figures
BARRIERS AND DETERMINANTS OF MARKET ORIENTATION ON THE PERFORMANCE OF SMALL AND MEDIUM ENTERPRISES
Creators: name: FATMASARI
name: SITTI MUJAHIDA BAHARUDDIN
name: MUH. SAID
name: ANDI IRMAYANA
Publisher: name: Zenodo
Year: 2024
Subjects: Micro, Small, and Medium Enterprises (SME); Market Orientation; Performance; Barriers; Determinants.

description: Abstract

The crucial role of Micro, Small, and Medium Enterprises (SME) in the economy is often hindered by various challenges in the implementation of market orientation. This study aims to analyze the influence of barriers and determinants of market orientation on SME performance and to identify factors that affect the effectiveness of market orientation implementation among SME. The research employs a quantitative approach with a survey design, where data were collected through structured questionnaires distributed to respondents selected via stratified random sampling. The analysis results indicate that market orientation has a significant impact on SME performance, with the primary barriers identified being resource constraints, limited access to market information, and managerial capabilities. The findings suggest that SME capable of effectively adopting market orientation tend to exhibit better financial performance and higher levels of customer satisfaction. The study concludes by underscoring the importance of integrating market orientation into SME business strategies to enhance competitiveness and business sustainability. Recommendations for future research include a more in-depth exploration of the role of technology and innovation in supporting market orientation, as well as an analysis of the impact of government policies on SME development.
Characterization of Sb scaling and fluids in saline geothermal power plants: A case study for Germencik Region (Büyük Menderes Graben, Turkey)
Creators: name: Tonkul, Serhat
name: Baba, Alper
name: Demir, Mustafa M.
name: Regenspurg, Simona
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Turkey is located on the seismically active Alpine-Himalayan belt. Although tectonic activity causes seismicity in the Anatolian plate, it also constitutes an important geothermal energy resource. Today, geothermal energy production is heavily concentrated in Turkey's Western Anatolia region. Graben systems in this region are very suitable for geothermal resources. The Büyük Menderes Graben (BMG) is an area of complex geology with active tectonics and high geothermal potential power. Germencik (Aydin) is located in the BMG, where the geothermal waters include mainly Na-Cl-HCO3 water types. This study examined the stibnite scaling formed in the preheater system of the Germencik Geothermal Field (GGF). The formation of the stibnite scaling on the preheater system dramatically reduces the energy harvesting of the GGF. Considering the stibnite scaling in the surface equipment, the optimum reinjection temperature was determined as 95 $^\circ$C to prevent stibnite scaling in the GGF.
title: Development of Heterodera schachtii in sugar beet genotypes with varying levels of resistance.
Creators: name: Roeb, Johannes
name: Grundler, Florian
name: Hallmann, Johannes
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2022
Subjects: subject: 630

description: The beet cyst nematode (BCN, Heterodera schachtii) is a major pest of sugar beet in many production areas around the world. BCN is mainly managed by growing tolerant sugar beet cultivars. These cultivars are not only tolerant, but also show a 30-60% lower nematode reproduction in comparison to susceptible cultivars. To better understand the mechanisms of different levels of resistance, development of H. schachtii in susceptible, resistant and tolerant sugar beet cultivars was studied in a series of climate chamber experiments. Seedlings were grown in 100-ml-containers with sand and inoculated in the 2-leaf stage with 500 BCN second-stage juveniles. Nematode development was evaluated at weekly intervals until the first generation was completed. In summary, 1) resistance and partial resistance did not affect root penetration rate of H. schachtii, 2) resistance frequently interrupted the development of juveniles and almost completely prevented the development of adult females, 3) partial resistance changed the sex ratio in favour of males and delayed the development of females, 4) resistance and partial resistance reduced the number of developed cysts and the cyst content and 5) sugar beet genotypes with partial resistance could be differentiated according to the average number of eggs and juveniles per cyst. The project was funded by the Federal Ministry of Food and Agriculture through the Fachagentur Nachwachsende Rohstoffe e. V. (FKZ 22022812).
L'autovalutazione in età evolutiva: metacognizione e stili attributivi
Creators: name: Versari, Annalisa <1974>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: M-PSI/01 Psicologia generale

description: The aim of the research is to study the capacity for self-evaluation of 271 primary school student undergoing tests involving mathematics and formal reasoning. Subjects were asked to estimate the number of correct answers and subsequently to compare their performance with that of their peers. The results demonstrate that all the subjects in all tests showed a significant negative relationship among real score and self - evaluation indices. Analyzing comparative assessments, the results reported in literature by Kruger and Dunning were confirmed: poor performers tend to significantly overestimate their own performance whilst top performers tend to underestimate it. This can be interpreted as a demonstration that the accuracy of comparative self-evaluations depends on a number of variables: cognitive and metacognitive factors and aspects associated with self-representation. To verify these aspects we examined bias in self evaluation from an attributional perspective too. Our conclusion is that cognitive and metacognitive processes work as “submerged” in highly subjective representations, allowing dynamics related to safeguarding the image one has of oneself to play a role.
Logarithmic trace and orbifold products
Creators: name: Edidin, Dan
name: Jarvis, Tyler J.
name: Kimura, Takashi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 14N35, 14L30, 55N91

description: We give a purely equivariant construction of orbifold products for quotient Deligne-Mumford stacks [X/G] where G is an arbitrary linear algebraic group (not necessarily finite). The key to our construction is the definition of the "logarithmic trace" of an equivariant vector bundle. We also prove that there is an orbifold Chern character homomorphism which induces an isomorphism of a canonical summand in the orbifold Grothendieck ring with the orbifold Chow ring. As an application we obtain an associative orbifold product on the Grothendieck ring of [X/G] (as opposed to its inerita stack) taken with complex coefficients.
description: 39 pages, references and a few remarks added
Mozart: New Documents
Creators: name: Edge, Dexter
name: Black, David I.
Publisher: name: The Authors
Year: 2014
Subjects: Mozart documentary biography.

description: a collaborative project for the digital publication of new Mozart documents discovered since 1997, the date of the second supplement (the Neue Folge) to Mozart: Die Dokumente seines Lebens. This website is intended as an open working draft, and we welcome contributions and feedback from readers, who will receive explicit credit and acknowledgment.
La retorica di Paul de Man
Creators: name: Zublena, Paolo
Publisher: name: Università degli Studi di Cagliari
Year: 2014

description: Per sciogliere immediatamente la possibile ambiguità del titolo, è bene chiarire subito che scopo di questo intervento è l’analisi di ciò che Paul de Man ha inteso per ‘retorica’, in particolare come strumento e oggetto di analisi nei testi (principalmente) letterari. Non si fa questione invece – per quanto si tratti di un argomento di sicuro interesse e di delicata rilevanza – della retorica impiegata da de Man nella sua scrittura, intendendosi in questo caso per retorica non solo la dimensione figurale del linguaggio, come lui avrebbe voluto, ma anche e in primo luogo la tecnica argomentativa, la cui specificità è veicolo privilegiato di certa ben nota perentoria e talvolta repentina assertività dei testi demaniani [...]
description: Between, Vol 4, N° 7 (2014): Poteri della retorica
THE CURRENT DIGITAL TRANSFORMATION LANDSCAPE OF THE STATE INFORMATION TECHNOLOGY AGENCY, SOUTH AFRICA
Creators: name: LINDELWA KOMNA
name: SABELO MPUNGOSE
Publisher: name: Zenodo
Year: 2024
Subjects: Digital Transformation; Digital Services; Digital Infrastructure; Public Sector; Digital Government; SITA, Digital Skills.

description: Abstract

This study analyses the digital transformation of the State Information Technology Agency (SITA) in South Africa, highlighting persistent public sector challenges such as poor service delivery and overlapping mandates. It explores how technology can enhance services while reducing costs despite obstacles like a lack of technical expertise and unequal access to devices. The primary aim is to assess SITA's digital transformation, evaluate its readiness to provide and maintain digital government services and offer strategic recommendations to enhance these efforts. The study employs a qualitative research design involving semi-structured interviews with a sample of selected participants from the target population of nearly three thousand SITA employees. A review of relevant documents, such as strategic plans and progress reports, was also employed for this study. Thematic analysis is used to interpret data patterns. Findings indicate that while SITA has made significant progress in adopting advanced technologies like AI, IoT, and cloud computing, it still faces challenges such as legislative barriers and skills gaps. Effective stakeholder engagement and strategic alignment of resources are critical to the success of digital transformation. This study aids the South African public sector by providing insights and strategic recommendations to improve digital service delivery and operational efficiency. It informs policy and strategic decisions for other public sector entities undergoing similar digital transformation journeys.
title: Reproductive Success of the White-Faced Ibis: The Effects of Pesticides and Colony Characteristics
Creators: name: Steele, Benjamin B.
Publisher: name: Utah State University
Year: 1980

description: Reproductive success of white-faced ibis (Plegadis chihi) was measured in nine colonies on marshes in northern Utah during 1979. The effects of pesticides and characteristics of colonies and sub-colonies on reproductive success were examined.
DDE was present in all 80 eggs sampled and had a geometric mean concentration of 1.25 ppm. Shell thickness of 176 eggs was 4.3 percent below pre-1945 thickness. Shell thickness was weakly correlated with residues of DDT, DDE, Dieldrin, and heptachlor epoxide. Residues of these four pesticides were all correlated with each other. However, because of the stronger correlations between shell thickness and two residues, DDE and DDT, and because of studies in the literature, it was concluded that these two residues were responsible for the observed shell thinning. Observed levels of pesticides did not cause sufficient shell thinning to reduce hatching success, but clutch size was negatively correlated with pesticide residues.
Only two characteristics of colonies were observed to be associated with differences in reproductive success. Earlier sub-colonies had larger clutches and larger colonies suffered higher rates of predation. If there are effects of subcolony size, degree of nesting synchrony, vegetation type, or avian species association on reproductive success, they may not be detectable with one year of data.
THE LIFESTYLE, PERCEIVED VALUE, INNOVATION MANAGEMENT, SOCIAL CONTEXT, AND PURCHASE INTENTION AFFECTING THE CONSUMER LOYALTY OF PLANT-BASED PROTEIN FOOD PRODUCTS AMONG VEGETARIAN CONSUMERS IN BANGKOK AND ITS VICINITY
Creators: name: PRAPAPORN KAMTHONGVIJIT
name: TANAPOL KORTANA
name: CHOMPOO SAISAMA
Publisher: name: Zenodo
Year: 2024
Subjects: Lifestyle, Perceived Value, Innovation Management, Social Context, Purchase Intention, Consumer Loyalty.

description: Abstract

The importance lies in understanding how lifestyle choices, perceived value, innovative management practices, social influences, and purchase intention impact the perceived quality of plant-based protein food products among vegetarian consumers in Bangkok and its vicinity areas. This study aims to: 1. To investigate the variables, lifestyle patterns, innovation management in plant-based protein foods, perceived value, social contexts, purchase intention, and consumer loyalty of plant-based protein food products among vegetarian consumers in Bangkok and its vicinity. 2. The influence of variables, lifestyle patterns, innovation management in plant-based protein foods, perceived value, social contexts, purchase intention that affect the consumer loyalty of plant-based protein food products among vegetarian consumers in Bangkok and its vicinity. This research was qualitative research methods, with a sample of 400 Thai vegetarian individuals and 20 plant-based food industry experts. The research findings indicate that lifestyle, consumer perceived value, social context, innovation management for plant-based food, purchase intention of plant-based food, and loyalty among Thai vegetarian consumers are all high. These factors significantly influence loyalty toward plant-based food, as demonstrated by the developed 2L2ISV Model. Qualitative data suggests that assuring the value of plant-based foods is crucial for cultivating loyalty among consumers, with strategies focusing on nutritional benefits and environmental advantages. These findings can inform government policies to support food entrepreneurs and promote consumer loyalty to plant-based foods.
title: Renewable Portfolio Standards and Environmental Goals
Creators: name: Smith, Josh T.
Publisher: name: Utah State University
Year: 2018

description: Renewable portfolio standards (RPS) are one of the most common state policies meant to encourage clean energy use. They require that utilities purchase electricity from certain qualifying electricity generators, usually with no reference to the cost of that electricity. AlthoughRPS are meant to clean up electricity generation through using clean energy sources instead of fossil fuels, they may not do so effectively. Further, some energy companies may lobby state legislators to include their energy sources regardless of their actual environmental benefit. The actual relationship between enacting an RPS and a state’s emissions from energy production is unclear. I explore RPS associations with carbon emissions. I collect data from 1960 to 2017 on factors related to environmental quality, energy production, and state economic factors. The data availability varies, however, so the most expansive variables are from 1960 to 2017 while many others fall into a shorter timeframe.The dataset relies heavily on the State Energy Data System (SEDS) that the Department of Energy’s Energy Information Administration (EIA) maintains, but also draws from a variety of other academic sources. Other variables, such as the dates of electricity market restructuring, I collect myself from primary sources.After accounting for existing linear trends in the data there appears to be no statistically significant relationship with RPS and carbon emissions.
Dynamic Bandwidth Management in Distributed VoD based on the User Class Using Agents
Creators: name: Guruprasad, H S
name: Maheshappa, H D
Publisher: name: arXiv
Year: 2009
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: This paper proposes a dynamic bandwidth management algorithm in which more bandwidth is allocated for higher class users and also higher priority is given to the videos with higher popularity within a class using agent technology. The popularity and weight profile of the videos which is used for efficiently allocating bandwidth is periodically updated by a mobile agent. The proposed approach allocates more bandwidth for higher class users and gives higher priority for higher weight videos [popular videos] so that they can be served with high QoS, reduces the load on the central multimedia server and maximizes the channel utilization between the neighboring proxy servers and the central multimedia server and lower video rejection ratio. The simulation results prove the reduction of load on central multimedia server by load sharing among the neighboring proxy servers, maximum bandwidth utilization, and more bandwidth allocation for higher class users.
description: 7 pages, International Journal of Computer Science and Information Security, ISSN 1947 5500, Impact Factor 0.423
Employment in Tourism Industries: Are there Subsectors with a Potentially Higher Level of Income?
Creators: name: Dorta-González, Pablo
name: González-Betancor, Sara M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: This work analyzes the tourist sector, the employment generated by the tourism industries, and its relationship with tourism receipts. The hypothesis is that there are tourist subsectors with a potentially higher level of income. The article studies the impact of the distribution of the employed population in the different subsectors of the tourism industry, controlling for the most important economic variables, on the level of income per arrival in 24 OECD countries, using panel data for the period 2008 to 2018. As its main result, the model indicates that the labor force that increases most the receipts per arrival is the 'travel agencies and other reservation services', followed by the 'sports and recreation industry' labor force, while having a large labor force in the 'food and beverage' or 'cultural industry' operates in the opposite direction.
description: 14 pages, 4 figures, 12 tables
Contact pair structures and associated metrics
Creators: name: Bande, G.
name: Hadjar, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We introduce the notion of contact pair structure and the corresponding associated metrics, in the same spirit of the geometry of almost contact structures. We prove that, with respect to these metrics, the integral curves of the Reeb vector fields are geodesics and that the leaves of the Reeb action are totally geodesic. Mreover, we show that, in the case of a metric contact pair with decomposable endomorphism, the characteristic foliations are orthogonal and their leaves carry induced contact metric structures.
title: Comparing Performance of Gene Set Test Methods Using Biologically Relevant Simulated Data
Creators: name: Lambert, Richard M.
Publisher: name: Utah State University
Year: 2018

description: Today we know that there are many genetically driven diseases and health conditions. These problems often manifest only when a set of genes are either active or inactive. Recent technology allows us to measure the activity level of genes in cells, which we call gene expression. It is of great interest to society to be able to statistically compare the gene expression of a large number of genes between two or more groups. For example, we may want to compare the gene expression of a group of cancer patients with a group of non-cancer patients to better understand the genetic causes of that particular cancer. Understanding these genetic causes could potentially lead to improved treatment options.
Initially, gene expression was tested on a per gene level for statistical difference. In more recent years, it has been determined that grouping genes together by biological processes into gene sets and comparing groups at the gene set level probably makes more sense biologically. A number of gene set test methods have since been developed. It is critically important that we know if these gene set test methods are accurate.
In this research, we compare the accuracy of a group of popular gene set test methods across a range of biologically realistic scenarios. In order to measure accuracy, we need to know whether each gene set is differentially expressed or not. Since this is not possible in real gene expression data, we use simulated data. We develop a simulation framework that generates gene expression data that is representative of actual gene expression data and use it to test each gene set method over a range of biologically relevant scenarios. We then compare the power and false discovery rate of each method across these scenarios.
Discovery of X-ray Emission from the Wolf-Rayet star WR142 of oxygen subtype
Creators: name: Oskinova, L. M.
name: Hamann, W. -R.
name: Feldmeier, A.
name: Ignace, R.
name: Chu, Y. -H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of weak yet hard X-ray emission from the Wolf-Rayet (WR) star WR142 with the XMM-Newton X-ray telescope. Being of spectral subtype WO2, WR142 is a massive star in a very advanced evolutionary stage, short before its explosion as a supernova or gamma-ray burst. This is the first detection of X-ray emission from a WO-type star. We rule out any serendipitous X-ray sources within approx 1" of WR142. WR142 has an X-ray luminosity of L_X=7\times10^{30} erg/s, which constitutes only $\lsim 10^{-8}$ of its bolometric luminosity. The hard X-ray spectrum suggests a plasma temperature of about 100 MK. Commonly, X-ray emission from stellar winds is attributed to embedded shocks due to the intrinsic instability of the radiation driving. From qualitative considerations we conclude that this mechanism cannot account for the hardness of the observed radiation. There are no hints for a binary companion. Therefore the only remaining, albeit speculative explanation must refer to magnetic activity. Possibly related, WR142 seems to rotate extremely fast, as indicated by the unusually round profiles of its optical emission lines. Our detection implies that the wind of WR142 must be relatively transparent to X-rays, which can be due to strong wind ionization, wind clumping, or non-spherical geometry from rapid rotation.
description: accepted ApJL
title: A Study of the Effects of Body Image Education on Body Image in Adults Aged 60 and Older
Creators: name: Peterson Hirtle, Amy
Publisher: name: Utah State University
Year: 1996

description: Body image has been addressed through weight loss, but little research has been done that addresses accepting one' s body. Even less research has been done on the body image concerns of older adults. Adults over age 60 who live in Arizona and spend their summers in Logan, Utah, participated in a body image education at Utah State University. The Body Esteem Scale and the Inventory of Positive Psychological Attitudes were used to measure the effect of the course on the participants. Older adults on average scored as high or higher than did younger older adults on both measurements.
Body image and psychological attitudes were found to correlate. However, the body image course did not produce significant improvement in the body image or psychological attitudes of participants. This may be due to older adults evaluating their body image by function rather than appearance or because body image is disregarded as a component of self-esteem. The demographic characteristics of age, gender, and body size were found to have no impact on body image or psychological attitudes. This may be due to a small sample size, the unique population, and a short-term intervention.
Further research on the importance of body image to older adults who are less healthy--possibly in a care setting--may provide information on the changeability and value of body image in older adults.