cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time in a Box: Advancing Knowledge Graph Completion with Temporal Scopes
Creators: name: Cai, Ling
name: Janowic, Krzysztof
name: Yan, Bo
name: Zhu, Rui
name: Mai, Gengchen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Almost all statements in knowledge bases have a temporal scope during which they are valid. Hence, knowledge base completion (KBC) on temporal knowledge bases (TKB), where each statement \textit{may} be associated with a temporal scope, has attracted growing attention. Prior works assume that each statement in a TKB \textit{must} be associated with a temporal scope. This ignores the fact that the scoping information is commonly missing in a KB. Thus prior work is typically incapable of handling generic use cases where a TKB is composed of temporal statements with/without a known temporal scope. In order to address this issue, we establish a new knowledge base embedding framework, called TIME2BOX, that can deal with atemporal and temporal statements of different types simultaneously. Our main insight is that answers to a temporal query always belong to a subset of answers to a time-agnostic counterpart. Put differently, time is a filter that helps pick out answers to be correct during certain periods. We introduce boxes to represent a set of answer entities to a time-agnostic query. The filtering functionality of time is modeled by intersections over these boxes. In addition, we generalize current evaluation protocols on time interval prediction. We describe experiments on two datasets and show that the proposed method outperforms state-of-the-art (SOTA) methods on both link prediction and time prediction.
title: tourismos, Vol. 7 No. 1 (2012)
Creators: name: Tourismos
Publisher: name: University of the Aegean
Year: 2012

description: The Challenges of Managing Tourism (Izazovi upravljanja turizmom)...535-539 Places of the Imagination: Media, Tourism and Culture...437-439 Modern Mass Tourism...433-436 Tourism and Sustainable Development: Reconsidering a Concept of Vague Policies...429-432 Securing and Sustaining the Olympic City – Reconfiguring London for 2012 and Beyond...425-427 Stories of Practice: Tourism Policy and Planning...421-424 THE IMPACT OF TOURISM ON OCCURRENCE OF SELECTED ANIMAL SPECIES IN THE BOHEMIAN FOREST...411-420 EXAMINING THE RISK DISCOURSE IN TERROR MOVIES. Tourism and Risk after WTC attack....403-409 BENEFIT-COST RATIO OF OPEN SPACE PRESERVATION FOR THE CAUSE OF ENVIRONMENT & TOURISM DEVELOPMENT IN AN INDIAN CITY...397-402 EUROPEAN TOURISM POLICY AND REFLECTIONS OF TOURISM IN THE NEGOTIATIONS WITH TURKEY...383-395 IS ‘MALAYSIA TRULY ASIA’? FORECASTING TOURISM DEMAND FROM ASEAN USING SARIMA APPROACH...367-381 THE OPTIMIZATION OF THE GREEK COASTAL SHIPPING TRANSPORTATION NETWORK...351-366 MECHANISM OF SOCIAL CAPITAL IN COMMUNITY TOURISM PARTICIPATORY PLANNING IN SAMUI ISLAND, THAILAND...339-349 A STUDY ON THE COMPETITION STRATEGIES OF THE AIRLINE COMPANIES IN TURKEY...325-338 ANALYSIS OF “ALL-INCLUSIVE” TOURISM MODE IN THE BALEARIC ISLANDS...309-323 THE MYSTERY DEMYSTIFIED: A MYSTERY SHOPPER'S EXPERIENCE WITH HOTEL SERVICES AND PRODUCTS...289-308 INTERNATIONAL DEMAND FOR NATURE-BASED TOURISM IN COSTA RICA: SOCIO-DEMOGRAPHIC AND TRAVEL INDICATORS...269-287 FARE TALE ORIENTEERING: DEVELOPING ART WORD BY LETTERBOXING EVENT...253-268 THE USA’S INTERNATIONAL TRAVEL DEMAND AND ECONOMIC GROWTH IN TURKEY: A CAUSALITY ANALYSIS: (1990 – 2008)...235-252 INTEGRATING SUSTAINABILITY INTO TOUR OPERATOR BUSINESS: AN INNOVATIVE APPROACH IN SUSTAINABLE TOURISM...213-233 UNDERSTANDING THE ROLE OF SOCIAL MEDIA IN DESTINATION MARKETING...193-211 ASSESSING TOURIST INFRASTRUCTURE IN THE ISLAND OF SKIATHOS: THE VIEWS OF LOCALS AND VISITORS...175-191 THE IMPACT OF MACROECONOMIC COUNTRYSPECIFIC FACTORS ON INTERNATIONAL EXPANSION OF US HOTEL CHAINS...155-173 INVESTMENTS AND TURNOVER: POOL DATA ANALYSIS FOR THE ROMANIAN HOTEL AND RESTAURANT SECTOR...135-154 INVESTIGATING HOTEL EMPLOYEE INVOLVEMENT IN STRATEGIC HUMAN RESOURCES MANAGEMENT...117-134 LOCALLY AND SOCIALLY EMBEDDED TOURISM CLUSTERS IN RURAL GREECE...99-116 EXPLORING TOURISTS’ PERCEPTION: THE CASE OF BANGLADESH...81-98 EXPLORING INDIAN TOURISTS’ MOTIVATION AND PERCEPTION OF BANGKOK...61-79 TOURISM, CULTURAL HERITAGE AND ESERVICES: USING FOCUS GROUPS TO ASSESS CONSUMER PREFERENCES...41-60 THE PACKAGED TOURIST: A JAPANESE AND AMERICAN PERSPECTIVE...19-40 Initial Pages & Editorial...1-17
The fate of aquatic macrophyte production : the decomposition, mineralization and nutrient recycling of a submerged aquatic vascular plant Myriophyllum spp
Creators: name: Kistritz, Ron Udo
Publisher: name: University of British Columbia
Year: 2010

description: Decomposition, mineralization and phosphorus (P) and nitrogen CN). regeneration of a submerged aquatic macrophyte, water-milfoil (Myriophyllum spp.), were investigated both in laboratory and field experiments. Existing chemical methods of plant analysis were modified to provide a procedure which simultaneously measured N and P in one small sample of live or dead plant material. A laboratory experiment was designed to investigate the effect of nutrient rich reservoir water and nutrient poor pond water on the process of aerobic decomposition and nutrient regeneration in water-milfoil. Measurements were also made of dry weight, and nutrient content of dying macrophyte material and three size catagories of macrophyte detritus. In the laboratory, higher amounts of N in reservoir water significantly increased decomposition and N and P regeneration of macrophyte material. Dying macrophytes and detritus showed 25-40 percent increases in total protein due to colonizing decomposer microorganisms. An "in situ" field study was designed to investigate the regeneration and mineralization of N and P compounds of aquatic macrophytes (Myriophyllum spicatum L.) decomposing under periodically anaerobic condition in nutrient rich reservoir water. Measurements were related to levels of N and P compounds liberated by sediment and decaying algae (almost entirely Anabaena spirula) and to N and P represented by total suspended bacteria. It was estimated that suspended bacteria contained up to 31 and 21 percent of the water's total organic P and N, respectively. Both laboratory and field results showed that P was regenerated rapidly and almost entirely as orthophosphate. Nitrogen was released predominately as ammonia, appreciable amounts of which were also liberated by sediment and phytoplankton.
The host galaxies of core-collapse supernovae and gamma ray bursts
Creators: name: Svensson, K. M.
name: Levan, A. J.
name: Tanvir, N. R.
name: Fruchter, A. S.
name: Strolger, L. -G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a comparative study of the galactic and small scale environments of gamma-ray bursts (GRB) and core collapse supernovae (CCSN). We use a sample of 34 GRB hosts at z<1.2, and a comparison sample of 58 supernova hosts located within the Great Observatories Origins Deep Survey footprint. We fit template spectra to the available photometric data, which span the range 0.45-24 micron, and extract absolute magnitudes, stellar masses and star formation rates from the resulting fits. Our results broadly corroborate previous findings, but offer significant enhancements in spectral coverage and a factor 2-3 increase in sample size. Specifically, we find that CCSN occur frequently in massive spirals (spiral fraction ~50%). In contrast GRBs occur in small, relatively low mass galaxies with high specific and surface star formation rates, and have a spiral fraction of only ~10%. A comparison of the rest frame absolute magnitudes of the GRB and CCSN sample is less conclusive than found in previous work, suggesting that while GRB hosts are typically both smaller and bluer than those of CCSN their total blue light luminosities are only slightly lower. We suggest this is likely due to rapid periods of intensified star formation activity, as indicated by the high specific star formation rates, which both create the GRB progenitors and briefly significantly enhance the host galaxy blue luminosity. Finally, our analysis of local environments of GRBs and CCSN shows that GRBs are highly concentrated on their host light, and further occur in regions of higher absolute surface luminosity than CCSN.
description: 23 pages, 10 figures, 6 tables. Accepted to MNRAS
Relativistic ferromagnetic magnon at the zigzag edge of graphene
Creators: name: You, Jhih-Shih
name: Huang, Wen-Min
name: Lin, Hsiu-Hau
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the spin-wave excitations near the zigzag edge of graphene. It is rather interesting that we obtain a single branch of relativistic ferromagnetic magnon due to the presence of the open boundary. Note that magnons in antiferomagnets appear in pairs, while the single brach magnon in ferromagnets does not have relativistic dispersion. Thus, the magnon near the zigzag edge of graphene is a hybrid of both, signaling its intrinsic property as a boundary excitation that must be embedded in a higher dimensional bulk system.
description: 4 pages, 3 figures
title: Mapas paramétricos cardíacos
Creators: name: Capelastegui Alber, Ana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Cardiac
subject: MR
subject: Technical aspects

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Los recientes avances técnicos en RM han hecho posible la medida rutinaria y directa de los tiempos de relajación de un tejido y su representación en un mapa paramétrico.
Este trabajo se basa en nuestra experiencia durante 1 año empleando las...
THE PACKAGED TOURIST: A JAPANESE AND AMERICAN PERSPECTIVE
Creators: name: Spears, Daniel
name: Rosenbaum, Mark
Publisher: name: tourismos
Year: 2012

description: Japan Travel Bureau recently reported that 48.7% of Japanese oversea travelers, in 2008, were part of a packaged tour, while 47.7% arranged their own travel. Interestingly, very little is actually known regarding demographic and consumption differences between Japanese packaged and independent tourists, especially regarding their shopping behaviors, or how Japanese -package tourists differ from another segment, such as packaged tourists from America. The objective of this article is to address this chasm by exploring demographic and consumption differences between, and among, Japanese and American packaged and non-packaged tourists who are vacationing in Honolulu, Hawaii. The sample includes 198 and 127 Japanese independent and packaged tourists, respectively, as well as 383 and 76 American independent and packaged tourists, respectively.
description: tourismos, Vol. 7 No. 1 (2012)
Celestial IR divergences in general most-subleading-color gluon and gravity amplitudes
Creators: name: Nastase, Horatiu
name: Rojas, Francisco
name: Rubio, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gluon amplitudes at most-subleading order in the $1/N$ expansion share a remarkable simplicity with graviton amplitudes: collinear divergences are completely absent in both and, as a consequence, their full IR behavior arises from soft gluon/graviton exchange among the external states. In this paper we study the effect of all-loop IR divergences of celestial most-subleading color gluon amplitudes and their similarities with the celestial gravity case. In particular, a simple celestial exponentiation formula for the dipole part can be written. We also analize how this exponentiation is modified by non-dipole contributions. Finally we also show that, in the Regge limit, the soft factor satisfies the Knizhnik-Zamolodchikov equation hinting at the possibility that, in this limit, an effective Wess-Zumino-Witten model would describe the dynamics of the infrared sector.
description: 30 pages, no figures
Path integral approach to random motion with nonlinear friction
Creators: name: Baule, A.
name: Cohen, E. G. D.
name: Touchette, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using a path integral approach, we derive an analytical solution of a nonlinear and singular Langevin equation, which has been introduced previously by P.-G. de Gennes as a simple phenomenological model for the stick-slip motion of a solid object on a vibrating horizontal surface. We show that the optimal (or most probable) paths of this model can be divided into two classes of paths, which correspond physically to a sliding or slip motion, where the object moves with a non-zero velocity over the underlying surface, and a stick-slip motion, where the object is stuck to the surface for a finite time. These two kinds of basic motions underlie the behavior of many more complicated systems with solid/solid friction and appear naturally in de Gennes' model in the path integral framework.
description: 18 pages, 3 figures
title: Demand Disaggregation for Non-Residential Water Users in the City of Logan, Utah, USA
Creators: name: Mahmoud Attaallah, Nour Aldin
Publisher: name: Utah State University
Year: 2018

description: Non-residential users contribute to a significant portion of the total water delivered by water supplying agencies. However, a very limited number of studies have attempted to investigate the water use behavior of non-residential users. With the emergence of newer “smart” meters, water use now can be measured and recorded at a very high temporal frequency. Smart meters can help determine total water use, timing, and component end uses to better understand water use practices by non-residential users.
Water end use disaggregation is the process of separating the water used by each fixture or process within a facility. This is useful because having a breakdown of the consumption of all end uses may encourage users to consume less water and gives them indications on how to do so. This project involved collecting and working with three different datasets with three different temporal scales (monthly billing data, 5-minute water use data, and 5-second water use data). We analyzed monthly billing data to solicit potential participating facilities for the study.
For each participating facility, new smart devices were installed on their existing water meters, including an advanced water meter register and a pulse counting data logger. The newer registers logged and transmitted data to a web-accessible data portal at 5-minute intervals, while the pulse counters recorded water use at 5- second intervals. These devices enabled us to measure the timing and volume of different water uses (e.g., indoor versus outdoor versus industrial processes uses). In this project, we identified different water use events, average water used by each end use (from plumbing fixtures to industrial machinery), variability in end uses (faucets/toilets versus showers), variability in use by the type of user (manufacturing facilities versus assisted living homes), and the impact of the business type on the water use.
TOURISM, CULTURAL HERITAGE AND ESERVICES: USING FOCUS GROUPS TO ASSESS CONSUMER PREFERENCES
Creators: name: Strielkowski, Wadim
name: Riganti, Patrizia
name: Wang, Jing
Publisher: name: tourismos
Year: 2012

description: This paper discusses the use of in-depth focus groups to assess residents, tourists and other stakeholders’ preferences for e-services that would enhance access to cultural heritage in Amsterdam, Leipzig, and Genoa. Several e-services are mentioned, and in particular the integration of e-services in these cities is highlighted. The way this integration takes place very much relates to the maturity of each city in terms of cultural tourism, and information and communication technology (ICT). Our results show that the need for tailored information (profiling), interactive maps (geospatial dimension), booking service “one-stop shops”, and consumer-generated content were all common in the three cities. In some cities the focus groups expressed a need for various forms of e-governance. Mobile devices and navigation systems were also high on the agenda in the more ICT-advanced cities.
description: tourismos, Vol. 7 No. 1 (2012)
title: Training interventions to reduce the risk of injury to the lower extremity joints during landing movements in adult athletes: a systematic review and meta-analysis
Creators: name: Bathe, Chantal
name: Fennen, Lena
name: Heering, Theresa
name: Greif, Alexander
name: Dubbeldam, Rosemary
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 790 Recreational and performing arts

description: Objective: Aim of this systematic review was to summarise training interventions designed to reduce biomechanical risk factors associated with increased risk of lower extremity landing injuries and to evaluate their practical implications in amateur sports. Design: Systematic review and meta-analysis.
Data sources: MEDLINE, Scopus and SPORTDiscus. Eligibility criteria: Training intervention(s) aimed at reducing biomechanical risk factors and/or injury rates included the following: (1) prospective or (non-)randomised controlled study design; (2) risk factors that were measured with valid two-dimensional or three-dimensional motion analysis systems or Landing Error Scoring System during jump landings. In addition, meta-analyses were performed, and the risk of bias was assessed. Results: Thirty-one studies met all inclusion criteria, capturing 11 different training interventions (eg, feedback and plyometrics) and 974 participants. A significantly medium effect of technique training (both instruction and feedback) and dynamic strengthening (ie, plyometrics with/without strengthening) on knee flexion angle (g=0.77; 95% CI 0.33 to 1.21) was shown. Only one-third of the studies had training interventions that required minimal training setup and additional coaching educations. Conclusion: This systematic review highlights that amateur coaches can decrease relevant biomechanical risk factors by means of minimal training setup, for example, instructing to focus on a soft landing, even within only one training session of simple technique training. The meta-analysis emphasises implementing technique training as stand-alone or combined with dynamic strengthening into amateur sport training routine.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
EXPLORING INDIAN TOURISTS’ MOTIVATION AND PERCEPTION OF BANGKOK
Creators: name: Siri, Raktida
name: Kennon, Lisa
name: Josiam, Bharath
name: Spears, Daniel
Publisher: name: tourismos
Year: 2012

description: Indians increasingly travel to foreign countries in a large number every year. To date, there are no studies focusing on this group of tourists. This study thus investigates the Indian tourists’ motivation and perception of Bangkok, Thailand. The study shows that both push and pull factors stimulate these Indians to travel. The most important motivations are to have fun, followed by to enjoy the beautiful environment, scenery, and beaches. Based on 20 motivations, four core typologies of Indian tourists are found: Novelty Seeking, Stress Busting/Fun, Achievement, and Family Oriented/Education. Family and/or friends and the Internet are perceived by Indian tourists as important sources in trip decision making.
description: tourismos, Vol. 7 No. 1 (2012)
Benchmarking Methods for Detecting Present/Absent Genes Using RNA-seq Data
Creators: name: Brandulas Cammarata, Alessandro
name: Bastian, Frederic
name: Robinson-Rechavi, Marc
Publisher: name: Zenodo
Year: 2025

description: Accurately identifying whether genes are expressed or inactive in RNA-seq datasets remains challenging due to biological and technical noise. Traditional threshold-based approaches don't take into account noise differences between experiments and species.. Here, we benchmark advanced statistical and Bayesian methods—including Zigzag, RefBool scGenexpress,, BulkECexplorer, DAFS, and BgeeCall to robustly distinguish true gene expression from noise, highlighting performance and reliabilityy across datasets.
Perfectly absorbed and emitted currents by complex potentials in nonlinear media
Creators: name: Zezyulin, Dmitry A.
name: Konotop, Vladimir V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Recently it was demonstrated that the concept of a spectral singularity (SS) can be generalized to waves propagating in nonlinear media, like matter waves or electromagnetic waves in Kerr media. The corresponding solutions represent nonlinear currents sustained by a localized linear complex potential in a nonlinear Schrödinger equation. A key feature allowing the nonlinear generalization of a SS is a possibility to reduce a nonlinear current to the linear limit, where a SS has the unambiguous definition. In the meantime, known examples of nonlinear modes bifurcating from linear spectral singularities are few and belong to the specific class of constant-amplitude waves. Here we propose to extend the class of nonlinear SSs by incorporating solutions whose amplitudes are inhomogeneous. We show that the continuation from the linear limit requires a deformation of the complex potential, and this deformation is not unique. Examples include the deformation preserving the gain-and-loss distribution and the deformation preserving geometry of the potential. For the case example of a rectangular potential, we demonstrate that the nonlinear currents can be divided into two types: solutions of the first type bifurcate from the linear spectral singularities, and solutions of the second type cannot be reduced to the linear limit.
description: accepted for Phys. Rev. A
TOURISM DESTINATION MANAGEMENT: AN OVERVIEW OF THE ADVANCES OF CATALONIA
Creators: name: Boyra Amposta, Josep
Publisher: name: tourismos
Year: 2015

description: This paper is dedicated to review Catalan public and private efforts to keep managing tourism advances to the benefit of Catalonia, and in particular its capital Barcelona, since the celebration of the Olympic Games in 1992. As the paper will progress its focus will turn on analyzing the abilities for learning and teaching advances, tackling how advances should be managed in order to keep their positive effects as long as possible in time, as they seem to be precisely at the basis of the success and position of Barcelona in the worldwide ranking as a top urban tourism destination.
description: tourismos, Vol. 10 No. 2 (2015)
ANALYZING EFFECTIVE FACTORS OF TOURISM DEMAND IN IRANIAN JUNGLE PARKS: CASE STUDY OF TABRIZ ELGOLI JUNGLE PARK
Creators: name: Bagherzadeh, Ali
name: Keshavarz, Amineh
Publisher: name: tourismos
Year: 2015

description: This study aimed to estimate tourism demand function of Tabriz Elgoli Park in Iran by travelling costs pattern in the frame of household production function, and then effective factors of the issue are investigated. The method of study is based on the estimation of tourism production functions, final cost of travelling, and calculating the shadow price of tourism. According to the results of the study, time, distance and travel costs effect on tourism and the final cost of tourism is calculated as 3368825.7 Rials per day. Findings show that there is a positive relationship between tourism with travelers’ income, quality of the park, educational level of visitors and a negative relationship with final cost (shadow price) of the tourism. The results of estimation model express that among all factors, the quality of park is the most effective factor in tourism demand. Therefore, any consideration of responsible people to the environmental quality of the park would increase tourist attraction, which leads to economical prosperity of the region.
description: tourismos, Vol. 10 No. 2 (2015)
Progress toward the chiral regime in lattice QCD calculations of the neutron electric polarizability
Creators: name: Engelhardt, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The static electric polarizability of the neutron is evaluated using domain-wall valence quarks on a MILC asqtad sea quark ensemble corresponding to a pion mass of m_pi = 357 MeV. Both connected as well as disconnected contributions are included. The result is quantitatively compatible with the expectation from chiral effective theory.
description: 7 pages, 4 figures; talk presented at the 27th International Symposium on Lattice Field Theory (Lattice 2009), Beijing, China, 26-31 Jul 2009
Generalized active information: extensions to unbounded domains
Creators: name: Díaz-Pachón, Daniel Andrés
name: Marks, Robert J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 94A17

description: In the last three decades, several measures of complexity have been proposed. Up to this point, most of such measures have only been developed for finite spaces. In these scenarios the baseline distribution is uniform. This makes sense because, among other things, the uniform distribution is the measure of maximum entropy over the relevant space. Active information traditionally assumes a finite interval universe of discourse but can be extended to other cases where maximum entropy is defined. Illustrating this is the purpose of this paper. Disequilibrium from maximum entropy, measured as active information, can be evaluated from baselines with unbounded support.
description: 15 pages, 1 figure
CROSS-CULTURAL TRAINING AS CRITICAL FACTOR OF CULTURAL INTELLIGENCE IN THE HOSPITALITY INDUSTRY
Creators: name: Kotsaga, Effrosyni
Publisher: name: tourismos
Year: 2015

description: This study analyses cultural awareness in the workplace. It is important for employees to be cultural aware because they may have to interact with people from other countries. Cultural Intelligence (CQ) examines individuals’ abilities to interact with people with different cultural backgrounds. Cross-cultural training is examined as a factor that may affect individuals’ CQ. Hospitality industry was chosen because of the diversity of employees, customers or owners. Because of the lack of research on this area, the paper contributes to the emerging need for cultural awareness in the workplace by examining cross-cultural training as a critical factor of CQ.
description: tourismos, Vol. 10 No. 2 (2015)
Polarized Emission of Sagittarius A*
Creators: name: Huang, Lei
name: Liu, Siming
name: Shen, Zhi-Qiang
name: Yuan, Ye-Fei
name: Cai, Mike J.
name: Li, Hui
name: Fryer, Christopher L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the parameter space of the two temperature pseudo-Newtonian Keplerian accretion flow model for the millimeter and shorter wavelength emission from Sagittarius A*. A general relativistic ray-tracing code is used to treat the radiative transfer of polarized synchrotron emission from the flow. The synchrotron self-Comptonization and bremsstrahlung emission components are also included. It is shown that the model can readily account for the millimeter to sub-millimeter emission characteristics with an accretion rate of ~6x10^17g.s^-1 and an inclination angle of ~40 deg. However, the corresponding model predicted near-infrared and X-ray fluxes are more than one order of magnitude lower than the observed 'quiescent' state values. While the extended quiescent-state X-ray emission has been attributed to thermal emission from the large-scale accretion flow, the NIR emission and flares are likely dominated by emission regions either within the last stable orbit of a Schwarzschild black hole or associated with outflows. With the viscous parameter derived from numerical simulations, there is still a degeneracy between the electron heating rate and the magnetic parameter. A fully general relativistic treatment with the black hole spin incorporated will resolve these issues.
description: 27 pages, 6 figures, ApJ accepted
Urban food planning, city logistics and sustainability: the role of the wholesale produce market. The cases of Parma and Bologna food hubs.
Creators: name: Morganti, Maria Eleonora <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: AGR/01 Economia ed estimo rurale
ICAR/05 Trasporti

description: At global level, the population is increasingly concentrating in the cities. In Europe, around 75% of the population lives in urban areas and, according to the European Environmental Agency (2010), urban population is foreseen to increase up to 80 % by 2020. At the same time, the quality of life in the cities is declining and urban pollution keeps increasing in terms of carbon dioxide (CO2) emissions, waste, noise, and lack of greenery. Many of European cities struggle to cope with social, economic and environmental problems resulting from pressures such as overcrowding or decline, social inequity, health problems related to food security and pollution. Nowadays local authorities try to solve these problems related to the environmental sustainability through various urban logistics measures, which directly and indirectly affect the urban food supply system, thus an integrated approach including freight transport and food provisioning policies issues is needed. This research centres on the urban food transport system and its impact on the city environmental sustainability. The main question that drives the research analysis is "How the urban food distribution system affects the ecological sustainability in modern cities?" The research analyses the city logistics project for food transport implemented in Parma, Italy, by the wholesale produce market. The case study investigates the renewed role of the wholesale market in the urban food supply chain as commercial and logistic operator, referring to the concept of food hub. Then, a preliminary analysis on the urban food transport for the city of Bologna is presented. The research aims at suggesting a methodological framework to estimate the urban food demand, the urban food supply and to assess the urban food transport performance, in order to identify external costs indicators that help policymakers in evaluating the environmental sustainability of different logistics measures
title: Thallium Removal from Drinking Water Using Pyrolusite Filter Media
Creators: name: Andersen, Erin R.
Publisher: name: Utah State University
Year: 2018

description: Thallium (Tl) is a rare heavy metal in drinking water, but its extreme toxicity makes its removal crucial to consumer health. Traditional treatment methods do not work for Tl in sources with high concentrations of ions like calcium (Ca+2) and potassium (K+), as they are removed preferentially to Tl. A treatment method that specifically targets Tl must be applied. Pilot studies conducted in Park City Utah found that pyrolusite, a manganese oxide ore, will remove Tl to very low concentrations in the presence of competing ions but because this method is not common, further study was required. This study investigated the mineral composition of the pyrolusite and where, within the material, Tl was held. Calcite is known to accumulate Tl so tests were done looking at Tl accumulation onto pyrolusite with and without calcite on the surface in three water qualities: one with high pH and chlorine (Cl2) and low concentrations of the interfering ions Ca, K, chloride (Cl-) predicted to promote Tl removal, one with low pH and Cl2 and high concentrations of interfering ions predicted to limit Tl removal, and one with a moderate pH used for comparison. The likelihood of this Tl to stay on the media surface with changes in water chemistry was also tested. It was seen that Tl does accumulate in calcite on the media surface. Both pyrolusite media showed a high capacity for Tl and media without calcite exhibited a preference for Tl over K. Calcite dissolved with changes in pH which led to the conclusion that its formation on the media surface must be closely monitored as it may increase the risk Tl release into the drinking water system.
title: The Power Law Distribution of Agricultural Land Size
Creators: name: Chamberlain, Lauren
Publisher: name: Utah State University
Year: 2018

description: This paper demonstrates that the distribution of county level agricultural land size in the United States is best described by a power-law distribution, a distribution that displays extremely heavy tails. This indicates that the majority of farmland exists in the upper tail. Our analysis indicates that the top 5% of agricultural counties account for about 25% of agricultural land between 1997-2012. The power-law distribution of farm size has important implications for the design of more efficient regional and national agricultural policies as counties close to the mean account for little of the cumulative distribution of total agricultural land. This has consequences for more efficient management and government oversight as a disruption in one of the counties containing a large amount of farmland (due to natural disasters, for instance) could have nationwide consequences for agricultural production and prices. In particular, the policy makers and government agencies can monitor about 25% of total agricultural land by overseeing just 5% of counties.
Pseudoduality in Supersymmetric Sigma Models on Symmetric Spaces
Creators: name: Sarisaman, Mustafa
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the target space pseudoduality in supersymmetric sigma models on symmetric spaces using two different methods, orthonormal coframe and component expansion. These two methods yield similar results to the classical cases with the exception that commuting bracket relations in classical case turns out to be anticommuting ones because of the appearance of grassmann numbers. In component expansion method it is understood that constraint relations in case of non-mixing pseudoduality are the remnants of mixing pseudoduality. Once mixing terms are included in the pseudoduality relations the constraint relations disappear.
description: 21 pages, typos corrected
Static Properties of the Multiple-Sine-Gordon Systems
Creators: name: Peyravi, M.
name: Riazi, N.
name: Montakhab, Afshin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: PACS: 05.45.Yv, 05.00.00, 02.60.Lj, 24.10.Jv

description: In this paper, we examine some basic properties of the multiple-Sine-Gordon (MSG) systems, which constitute a generalization of the celebrated sine-Gordon (SG) system. We start by showing how MSG systems can be viewed as a general class of periodic functions. Next, periodic and step-like solutions of these systems are discussed in some details. In particular, we study the static properties of such systems by considering slope and phase diagrams. We also use concepts like energy density and pressure to characterize and distinguish such solutions. We interpret these solutions as an interacting many body system, in which kinks and antikinks behave as extended particles. Finally, we provide a linear stability analysis of periodic solutions which indicates short wavelength solutions to be stable.
description: 16 pages, 13 figures
THE EFFICACY OF ALTERNATIVE TOURISM DEVELOPMENT TO OVERCOME CURRENT CRISIS: AN EXPLORATION OF THE VIEWS OF THE STAKEHOLDERS OF THE PREFECTURE OF KORINTHIA
Creators: name: Papageorgiou, Athina
name: Lytras, Pericles
Publisher: name: tourismos
Year: 2015

description: Our aim was to record the views of the stakeholders of the prefecture of Korinthia on the alternative forms of tourism suitable to develop in this destination and capable to meet current crisis. We found that they all think that new alternative forms of tourism are definitely needed but they disagree on the specific form(s) that should be developed in the area. Considerable differentiation and ambiguity was also observed on various other issues, including infrastructure development, while no co-ordination exists. We conclude that a new vector (a participation of the various parties involved) is needed to accurately record the current situation, coordinate specific actions needed (meetings, congresses, participation in expeditions, education, etc.) and help developing a comprehensive master plan for local and regional tourism development.
description: tourismos, Vol. 10 No. 2 (2015)
Strange quark content of the nucleon
Creators: name: Babich, Ronald
name: Brower, Richard
name: Clark, Michael
name: Fleming, George
name: Osborn, James
name: Rebbi, Claudio
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss the calculation of disconnected diagrams needed for determining the strange quark content of the nucleon on the lattice. We present results for the strange scalar form factor and the related parameter f_Ts, which enters into the cross-section for the scattering of dark matter off nuclei in supersymmetric extensions of the standard model. In addition, we present results for the strange contribution to the nucleon's axial and electromagnetic form factors. The calculations were performed with two dynamical flavors of Wilson fermions on a 24^3 x 64 anisotropic lattice with a_s = 3a_t = 0.11 fm and M_pi ~ 400 MeV.
description: 7 pages, 5 figures, presented at the XXVI International Symposium on Lattice Field Theory (Lattice 2008), Williamsburg, Virginia, July 14-19, 2008
THE SIGNIFICANCE OF HUMAN RESOURCES IN TOURISM MARKETING. IMPACTS ON THE EVALUATION OF THE TOURISM PRODUCT
Creators: name: Vitouladiti, Ourania
name: Dedousopoulos, Apostolos
Publisher: name: tourismos
Year: 2015

description: Human resources in tourism, in the form of service personnel, are vital for the success of a business, operate as a critical factor for the creation of a destination’s image and affect its selection from potential visitors. Human resources and image are crucial issues in tourism and travel marketing. However, research connecting them is limited. Taking into consideration these points this paper tries to assess the tourism personnel’s images held by tourists, prior and after the visit, in an attempt to reveal deviations from their expectations concerning the personnel’s performance. The fact that there is limited evidence and research on the personnel as an element of the destination image renders the approach of the current study interesting and can offer suggestions for managerial and marketing actions.
description: tourismos, Vol. 10 No. 2 (2015)
AGRITOURISM MARKETING DISTRIBUTION STRATEGY AND TYPOLOGY INVESTIGATION. THE CASE OF ARCADIA
Creators: name: Katsoni, Vicky
name: Dionysopoulou, Panagiota
Publisher: name: tourismos
Year: 2015

description: During last decades, agritourism started to grow significantly in Mediterranean area mostly due to its favourable climate. Within literature, there are many international studies that discuss the concept of agritourism in various ways. Wide-ranging definitions and labels concerning agritourism still create confusion as there is not a transparent and basic understanding of the characteristics that define it. This paper provides a comprehensive overview on behaviour patterns of agritourists by combining these patterns with the activity-based taxonomy of all definitions of agritourism into a structured framework. The research field of the case study is Arcadia, a prefecture in Peloponnese. The study contributes to the investigation of information sourcing behaviour in tourists’ travel decision process and offers a comprehensive framework that can be used as a basis for more informed debate and discussion, as well as for further empirical research in future.
description: tourismos, Vol. 10 No. 2 (2015)
Robust Downlink Beamforming in Multiuser MISO Cognitive Radio Networks
Creators: name: Gharavol, Ebrahim A.
name: Liang, Ying-Chang
name: Mouthaan, Koenraad
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper studies the problem of robust downlink beamforming design in a multiuser Multi-Input Single-Output (MISO) Cognitive Radio Network (CR-Net) in which multiple Primary Users (PUs) coexist with multiple Secondary Users (SUs). Unlike conventional designs in CR-Nets, in this paper it is assumed that the Channel State Information (CSI) for all relevant channels is imperfectly known, and the imperfectness of the CSI is modeled using an Euclidean ball-shaped uncertainty set. Our design objective is to minimize the transmit power of the SU-Transmitter (SU-Tx) while simultaneously targeting a lower bound on the received Signal-to-Interference-plus-Noise-Ratio (SINR) for the SU's, and imposing an upper limit on the Interference-Power (IP) at the PUs. The design parameters at the SU-Tx are the beamforming weights, i.e. the precoder matrix. The proposed methodology is based on a worst case design scenario through which the performance metrics of the design are immune to variations in the channels. We propose three approaches based on convex programming for which efficient numerical solutions exist. Finally, simulation results are provided to validate the robustness of the proposed methods.
description: 23 pages, 4 figures, submitted to IEEE Trans. Wireless Comms., accepted conference version to PIMRC'09
HybridQ: A Hybrid Simulator for Quantum Circuits
Creators: name: Mandrà, Salvatore
name: Marshall, Jeffrey
name: Rieffel, Eleanor G.
name: Biswas, Rupak
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Developing state-of-the-art classical simulators of quantum circuits is of utmost importance to test and evaluate early quantum technology and understand the true potential of full-blown error-corrected quantum computers. In the past few years, multiple theoretical and numerical advances have continuously pushed the boundary of what is classically simulable, hence the development of a plethora of tools which are often limited to a specific purpose or designed for a particular hardware (e.g. CPUs vs. GPUs). Moreover, such tools are typically developed using tailored languages and syntax, which makes it hard to compare results from, and create hybrid approaches using, different simulation techniques. To support unified and optimized use of these techniques across platforms, we developed HybridQ, a highly extensible platform designed to provide a common framework to integrate multiple state-of-the-art techniques to run on a variety of hardware. The philosophy behind its development has been driven by three main pillars: "Easy to Use", "Easy to Extend", and "Use the Best Available Technology". The powerful tools of HybridQ allow users to manipulate, develop, and extend noiseless and noisy circuits for different hardware architectures. HybridQ supports large-scale high-performance computing (HPC) simulations, automatically balancing workload among different processor nodes and enabling the use of multiple backends to maximize parallel efficiency. Everything is then glued together by a simple and expressive language that allows seamless switching from one technique to another as well as from one hardware to the next, without the need to write lengthy translations, thus greatly simplifying the development of new hybrid algorithms and techniques.
description: https://github.com/nasa/hybridq
La definizione di criminalità organizzata nella letteratura giuridica e nella normativa interna ed internazionale
Creators: name: Lancellotti, Cecilia <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: IUS/17 Diritto penale

description: Non può dirsi ancora raggiunta una completa, appagante e condivisa definizione di criminalità organizzata: eppure tale concetto viene ampiamente utilizzato, entrando nel linguaggio comune e –soprattutto- in quello normativo e giurisprudenziale. Attraverso il susseguirsi di numerosi interventi legislativi, abbiamo assistito alla progressiva elaborazione del c.d. doppio binario: di una normativa, cioè, ad hoc per i reati di criminalità organizzata, caratterizzata da un rilevante arretramento delle ordinarie soglie di garanzia previste dall’ordinamento giuridico. Alla luce di prioritarie esigenze di legalità si giustifica l’impellente necessità di giungere alla elaborazione di una precisa definizione di criminalità organizzata. A tale fine, nel corso del presente lavoro, sono stati esaminati i principali approcci definitori individuati a livello socio-criminologico, giurisprudenziale ed in ambito normativo, con particolare attenzione al diritto penale e processual-penalistico; si è inoltre proceduto all’analisi delle principali definizioni riscontrabili a livello comunitario ed internazionale.
title: A Sociological Evaluation of a Large Team Science Project: The iUtah Experience
Creators: name: Dean, K. Taylor
Publisher: name: Utah State University
Year: 2018

description: Many contemporary scientific research projects are composed of large numbers of researchers working together to provide solutions to social issues that affect our society. In an attempt to understand and address these issues, projects have been implemented where researchers from a wide variety of disciplines come together and collaborate. As this research includes a variety researchers, it requires a unique approach. Questions such as how to make these projects as effective as possible, how to properly evaluate these projects, and how to gauge the quality and success of these projects need to be answered.
These are directly addressed in this research by evaluating a large team science project called iUTAH (Innovative Urban Transitions and Aridregion HydroSustainability). The iUTAH project was established to address water sustainability in Northern Utah, USA, and to bolster the states capacity to address water sustainability.
This research employs face-to-face interviews with researchers involved in iUTAH. Findings from this research highlight the important influence that team size, geographically dispersed team members, the importance of cyberinfrastructure, researcher rank, research focus areas, and in-person meetings have on scientific collaboration. Additionally, findings illuminate multiple dimensions of project success that include traditional indicators of research success (e.g. publications and citations), as well as project specific indicators (e.g. capacity building and relationships) that are unique to collaborative scientific approaches. These findings contribute to the literature and understanding of large team science collaborations, and can be used to inform future projects to ensure they are as effective as possible.