cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Factors Influencing Purchase Intention for Online Travel Products - Case Study of Taiwanese Consumers
Creators: name: Lin, Pei-Jung
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Consumer behaviour

description: The Internet has dramatically changed how people communicate, search for information, make decisions and purchase goods/services. Travel product has distinguishing features which make them particularly receptive to the Internet benefits. Although the Internet provides benefits for information searching and product purchasing, there are perceived barriers that customers may encounter while using the Internet for travel purchase, which, to some extent, impeded the growth of online travel sales. Several factors influence purchase intention for online travel products, e.g. social factors which contextualize online purchase. Trust influences consumer behaviour and is significant in e-commerce. This thesis develops a framework for investigating factors influencing Taiwanese consumers’ purchase intention for online travel products emphasizing the role of trust and providing a holistic view of online consumer purchase decision-making processes incorporating trust, culture and various supply/demand side factors and their influence on online travel purchase intention. A case study investigates Taiwanese consumers’ online travel purchase behaviour. Multi-methods enable triangulation: in-depth interviews and participant observation explore consumers’ online travel purchase experience and perceptions of travel websites; questionnaire and projective technique interviews investigate attitudes and perceptions identified in the questionnaire survey and their effect on travel purchase intention. The findings suggest trust significantly impacts online travel purchase intention. Trust cab be built by supply-side factors: vendor’s reputation and website design. If consumers feel online travel companies care about mutual benefits, trust is more likely to be forged. Cultural factors impact on consumer purchase intention. Consumers often visit and feel more comfortable purchasing from websites recommended by family and friends. This research helps understand trust by explaining factors promoting trust in online travel purchase contexts. Since perceptions of travel website information quality, vendor’s reputation, and recommendations from family and friends strongly predict trust, Taiwanese online travel companies should focus on them to increase trust and ultimately online transaction volume.
FATHERHOOD AND MASCULINITY
Creators: name: MERCURI, EUGENIA
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: The thesis presents the results of a qualitative social research which deals with contemporary experiences and representations of fatherhood in the Italian context, with the main aim of looking at possible spaces for a deepening of the reflection on how studying fatherhood could give a contribution to the study of masculinities. Theoretically, it is based on the conceptual distinction between fathers, fathering and fatherhood, on conceptualizations of masculinities, and on critiques and developments of the concept of hegemonic masculinity: hybrid/plural masculinities on the one hand and inclusive/caring masculinities on the other. Methodologically, it is based on three sets of data: 33 discursive interviews with first time Italian fathers of children aged 0-3 years, all employed, heterosexual, and cohabiting with the mothers of their children (areas of Torino and Cuneo ? Piedmont); 15 television advertisements depicting fathers, and a focus group with a subgroup of interviewees on media representations of fatherhood and issues related to care. The analysis of the empirical materials deals with different issues: the process of becoming a father, and the meanings attached to fatherhood; care practices and responsibilities; fatherhood as depicted in popular media culture; gender costruction in fathering practices. The fundamental aim is to understand whether contemporary experiences of fatherhood and transformations of traditional masculinities may represent a change in gender relations within the family, or instead have to be interpreted as hybridizations of hegemonic masculinity.
Skewon no-go theorem
Creators: name: Itin, Yakov
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Axion modification of the electrodynamics can be considered as produced by an irreducible part of the constitutive pseudotensor. In this paper, we study the modification of wave propagation produced by the second irreducible part called skewon. We introduce the notions of skewon optic tensor and skewon optic covector. With these devices we prove that in a pseudo-Riemannian manifold endowed with an arbitrary skewon at least one solution of the dispersion relation is spacelike. This means that the skewon generates superluminal wave motion and is thus ruled out on the basis of SR principles.
description: To appear in Phys. Rev. D
Delomys dorsalis
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Delomys
Delomys dorsalis

description: Delomys dorsalis (Hensel, 1872). Abh. König. Akad. Wiss. Berlin, p. 42. TYPE LOCALITY: Brazil, Rio Grande do Sul. DISTRIBUTION: Atlantic coastal region of SE Brazil and extreme NE Argentina. SYNONYMS: collinus, lechei, obscura, plebejus.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 700, DOI: 10.5281/zenodo.7353098
Observation of anisotropic magneto-inductance effect
Creators: name: Shoka, Yuto
name: Okano, Genki
name: Suto, Hiroyuki
name: Sumi, Satoshi
name: Awano, Hiroyuki
name: Tanabe, Kenji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have discovered a new phenomenon that inductance oscillates as a function of the angle between an in-plane magnetic field and an electric current direction in permalloy films, which we have named "the anisotropic magneto-inductance (AML) effect". We have investigated the dependences of the AML effect on the size and voltage. The length, frequency, and amplitude dependences suggest that the AML effect should be evaluated in terms of "inductivity". Inductors based on this AML effect have the potential to be variable, on-chip, and one billion times smaller than the small commercial inductor.
Delomys sublineatus
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Delomys
Delomys sublineatus

description: Delomys sublineatus (Thomas, 1903). Ann. Mag. Nat. Hist., ser. 7, 12:240. TYPE LOCALITY: Brazil, Espirito Santo, Engenheiro Reeve, 500 m. DISTRIBUTION: Atlantic coastal forest of SE Brazil, Espirito Santo to Paranâ.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 700, DOI: 10.5281/zenodo.7353098
title: Налоги владельческих крестьян XVII в. (на примере галичского поместья А.А.Адашева)
Creators: name: Гуменюк, Алексей
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: Практика взимания налогов рассмотрена на материалах архива галичских помещиков Адашевых 1640—1705 гг. (ГАЯО. Ф. 582. Оп. 6. Д. 753—805, 856, 866—868 и др.) Отписи об уплате податей раскрывают виды платежей и позволяют оценить величину постоянных и чрезвычайных налогов, которые ежегодно выплачивались крестьянами. Проанализировав налогообложение владений Адашевых, автор показывает, что в XVII в. сумма постоянных государственных налогов для помещичьих крестьян не превышала 47,5 денег с одного двора. Чрезвычайные налоги, взимаемые на нужды армии, были существенно выше. Во время русско-польской войны 1654—1667 гг. объем чрезвычайных налогов в 5—10 раз превосходил размеры постоянных налогов. Выплаты государственных налогов, как правило, проходили в установленные сроки в соответствии с окладами.
Anapole Dark Matter at the LHC
Creators: name: Gao, Yu
name: Ho, Chiu Man
name: Scherrer, Robert J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The anapole moment is the only allowed electromagnetic moment for Majorana fermions. Fermionic dark matter acquiring an anapole can have a standard thermal history and be consistent with current direct detection experiments. In this paper, we calculate the collider monojet signatures of anapole dark matter and show that the current LHC results exclude anapole dark matter with mass less than 100 GeV, for an anapole coupling that leads to the correct thermal relic abundance.
description: 11 pages, 3 figures, v2: version to appear in PRD
Eligmodontia F. Cuvier 1837
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Eligmodontia

description: Eligmodontia F. Cuvier, 1837. Ann. Sci. Nat. (Paris), ser. 2, 7:169. TYPE SPECIES: Eligmodontia typus F. Cuvier, 1837. SYNONYMS: Eligmodon, Heligmodontia. COMMENTS: A phyllotine member closely allied to Calomys (Hershkovitz, 1962; Williams and Mares, 1978). Revised by Hershkovitz (1962), who synonymized all forms as E. typus. Morphological, chromosomal, and distributional evidence, however, supports a view of greater species diversity (e.g., Kelt et al., 1991; Mann, 1978; Mares et al., 1989b; Osgood, 1943). For example, Kelt et al. (1991) identified three chomosomal morphs to which they applied the names typus (2n=44), puerulus (2n=50), and morgani (2n=32). The association of names, particularly for typus and morgani, is based on the nearness of their sample localities to type localities. This is not the same as karyotyping topotypic animals or comparing karyotyped specimens to holotypes. In view of the complex interdigitation of specific ranges among the ridges and valleys of the southern Andes, the use of these chromosomal formulae as a diagnostic key to species identifications should be employed cautiously pending a full revision of the genus. Williams and Mares (1978) referred Graomys hypogaeus to synonymy under E. typus sensu lato and questioned whether the type is a composite specimen; resolution of its status and proper synonymy requires restudy of the holotype as part of a revision of Eligmodontia.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 700, DOI: 10.5281/zenodo.7353098
description: {"references": ["Hershkovitz, P. 1962. Evolution of Neotropical cricetine rodents (Muridae) with special reference to the phyllotine group. Fieldiana: Zoology, 46: 1 - 524.", "Williams, D. F., and M. A. Mares. 1978. A new genus and species of phyllotine rodent (Mammalia: Muridae) from northwestern Argentina. Annals of Carnegie Museum, 47: 193 - 221.", "Kelt, D. A., R. E. Palma, M. H. Gallardo, and J. A. Cook. 1991. Chromosomal multiformity in Eligmodontia (Muridae, Sigmodontinae), and verification of the status of E. morgani. Zeitschrift fur Saugetierkunde, 56: 352 - 358.", "Mann, G. F. 1978. Los pequenos mamiferos de Chile (marsupiales, quiropteros, edentados y roedores). Guyana (Zoologia), 40: 1 - 342.", "Mares, M. A., R. A. Ojeda, and R. M. Barquez. 1989 b. Guide to the Mammals of Salta Province. University of Oklahoma Press, Norman, 303 pp.", "Osgood, W. H. 1943. The mammals of Chile. Field Museum of Natural History, Zoological Series, 30: 1 - 268."]}
Effective time management and Organisational performance: A case study of Qatar non-governmental organisations (NGOs)
Creators: name: Al-Marri, Saleh Hamad
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Other commerce, management, tourism and services not elsewhere classified

description: Cultural differences have an effect on time management practices. The time management practices would then influence key job performance outcomes. A relationship, thus, exists between time management cultures and job performance which then influences organisational outcomes. Most of the time management research has, however, mainly focussed on monochronic western cultures. There is, therefore, very little insight into whether relationship in other cultural contexts, such as polychronic Middle Eastern countries. The aim of this study is to investigate the impact of time management practices on organisational performance of non-governmental organisations (NGOs) in Qatar. The study employs a multi-case study approach using three NGOs: Qatar - Japanese Friendship Society, Qatar Centre for Child Culture and Doha Centre for Media Freedom, in order to investigate the possible relationship that has been found to be mainly positive in monochronic western cultures. In investigating the relationship, the study also examines the perceptions (meanings) of time and identifies the factors that influence time management behaviours, in particular, the role of leadership and culture. The study adopts a mixed methods research methodology from a pragmatic perspective, employing questionnaires and semi-structured interviews. In total, 278 questionnaires were administered to employees and 7 interviews conducted with top management of the selected NGOs in Qatar. The study found that time management was of great importance and that cultural differences played a crucial role in its determination. Analysis of the interviews revealed that cultural factors had a strong impact on time management. It was also found that there was very little understanding about the impact of monochronic time and polychronic time. However, the study revealed that Qatari NGO employees had attributes that characterise polychronic culture and that the employees was interested to learn more about monochronic practices. In addition, the study showed that there was indeed a linkage between time management behaviours and organisational performance. The study found that aspects of job outcomes, examined in respect of work balancing, work load and awareness building, were positively and significantly impacted by time management practices. Further, the research found that the NGOs under investigation have gradually been coming to terms and implementing effective time management strategies. These are increasingly recognised as important for the NGOs to achieve their organisational objectives.
title: «Государь император, желая оказать всемилостивейшее пособие…»: строительство домов малоимущим жителям Петергофа за счет казны в 1826—1839 гг.
Creators: name: Ефимов, Андрей
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2020

description: Статья посвящена немаловажному вопросу, связанному не только с историей Петергофа, но и с более весомыми темами, деятельностью Министерства императорского двора по управлению дворцовыми городами и историей дворцовых городов как административно-территориальных образований с особым статусом. Основываясь на материалах Российского государственного исторического архива, автор обращается к исследованию утвержденного Александром I и реализованного при Николае I проекта перестройки ветхих домов жителей Петергофа за казенный счет. В статье отмечается, что этот план реализовывался с определенной гибкостью, когда при необходимости или по решению руководителей Министерства императорского двора перечень реконструируемых зданий корректировался для включения ранее не предусмотренных объектов. При этом автор отмечает, что сэкономленные при его реализации средства не были изъяты для других целей, а позволили перестроить несколько домовладений сверх запланированного числа.
Eligmodontia moreni Thomas 1896
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Eligmodontia
Eligmodontia moreni

description: Eligmodontia moreni Thomas, 1896. Ann. Mag. Nat. Hist., ser. 6, 18:307. TYPE LOCALITY: Argentina, La Rioja Prov., Chilecito, 1200 m. DISTRIBUTION: Atlantic-facing Andean slopes at intermediate elevations. El Salta to Neuquen Prov., NW Argentina; limits poorly documented. COMMENTS: Mares et al. (1981 b, 1989b) noted the morphological, distributional, and ecological distinction of E. moreni and E. puerulus in El Salta Prov., Argentina. The differentiation of moreni from morgani in the S Andes and from typus in the Pampas warrants further study.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 701, DOI: 10.5281/zenodo.7353098
description: {"references": ["Mares, M. A., R. A. Ojeda, and M. P. Kosco. 1981 b. Observations on the distribution and ecology of the mammals of Salta Province, Argentina. Annals of Carnegie Museum, 50: 151 - 206.", "Mares, M. A., R. A. Ojeda, and R. M. Barquez. 1989 b. Guide to the Mammals of Salta Province. University of Oklahoma Press, Norman, 303 pp."]}
Constitutions Without Constitutionalism: Reflections on Afghanistan’s Failed Constitutions
Creators: name: Hashimy, Sayed Qudrat
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 480406
subject: Law reform
classificationCode: 480701
subject: Administrative law
classificationCode: 480702
subject: Constitutional law
classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: The failure of the Afghan constitution is attributed to societal values incompatible with democracy, making the country appear ungovernable. The Taliban’s return has sparked debates on regime legitimacy and constitutionalisation. This process will shape Afghanistan’s approach to humanitarian and refugee law, and international aid. The 1964 Constitution was a milestone but was regarded as a failure while the 2004 Constitution, favouring democratic principles, is now illegal. Afghanistan’s challenges stem from a legitimacy crisis, limited citizen participation and parallel institutions. This article examines the successive failure of Afghan constitutions, focusing on the 1923, 1964, and 2004 ones. The study utilises doctrinal legal research, employing normative approaches to evaluate relevant literature, including secondary, primary, and legal documents.
Influence of vibrations on electron transport through nanoscale contacts
Creators: name: Bürkle, Marius
name: Viljas, Janne K.
name: Hellmuth, Thomas J.
name: Scheer, Elke
name: Weigend, Florian
name: Schön, Gerd
name: Pauly, Fabian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this article we present a novel semi-analytical approach to calculate first-order electron-vibration coupling constants within the framework of density functional theory. It combines analytical expressions for the first-order derivative of the Kohn-Sham operator with respect to nuclear displacements with coupled-perturbed Kohn-Sham theory to determine the derivative of the electronic density matrix. This allows us to efficiently compute accurate electron-vibration coupling constants. We apply our approach to describe inelastic electron tunneling spectra of metallic and molecular junctions. A gold junction bridged by an atomic chain is used to validate the developed method, reproducing established experimental and theoretical results. For octane-dithiol and octane-diamine single-molecule junctions we discuss the influence of the anchoring group and mechanical stretching on the inelastic electron tunneling spectra.
description: 13 pages, 5 figures
Entrepreneurship and social media in the creative industries: A socio-technical perspective of entrepreneurial discovery of value opportunity and exploitation
Creators: name: Otaiba, Maysson Al
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Entrepreneurship

description: The research focused on explaining creative entrepreneurs’ usage of social media (SM) to express and communicate their creative aesthetics to customers from a socio-technical perspective. The explanation focused on understanding how creative entrepreneurs achieve mature usage of SM.Maturity implying SM usage such that creative processes are well integrated with internal business operations and marketing communications to create economic value. There are no extant explanatory frameworks that account for creative entrepreneurs’ use of SM to express and communicate their creative aesthetics to customers. A qualitative research methodology using in-depth interviews with creative entrepreneurs in the fashion, jewellery, and art industries, amongstothers was used to collect data. The in-depth interviews were semi-structured and were designed to collect data consistent with the research objectives. Focus was placed on how social media enables opportunity seeking and how creative entrepreneurs exploit it using social media. The collected data was analysed to establish patterns that reveal how social media is used to create value. Findings reveal several patterns of maturing use of SM. Creative entreprenuers learn about SM strategy, tools, and techniques to incorporate into their core creativity processes to communicate and interact with customers. The socio-technical empirical SM maturity framework is proposed which is composed of five empirically evidenced constructs reflecting these patterns: SM discovery and strategy, SM tools, SM content, SM maturity, and Outcome. It provides insight into the aesthetic and creativity acts through SM technology of creative entrepreneurs. It reveals that creative entrepreneurs combine their aesthetic creativity, real-time marketing, and opportunity seeking on SM platforms to create economic value. They do this using the unique real-time communication and interactivity features of SM that enables real-time digital marketing of their created products. The SM maturity framework contributes an empirically validated explanation of strategic use of SM by creative entrepreneurs for effective aesthetic value communication and interaction with customers to create value. Maturity is integration of SM into their creative processes to express and communicate aesthetic value and value creation. The practical impact is that creative entrepreneurs can use the framework for their own SM practices to express and communicate aesthetic value and value creation
binary_c-python: A Python-based stellar population synthesis tool and interface to binary_c
Creators: name: Hendriks, D. D.
name: Izzard, R. G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the software package binary_c-python which provides a convenient and easy-to-use interface to the binary_c framework, allowing the user to rapidly evolve individual systems and populations of stars. binary_c-python is available on Pip and on GitLab. binary_c-python contains many useful features to control and process the output of binary_c, like by providing binary_c-python with logging statements that are dynamically compiled and loaded into binary_c. Moreover, we have recently added standardised output of events like Roche-lobe overflow or double compact-object formation to binary_c, and automatic parsing and managing of that output in binary_c-python. binary_c-python uses multiprocessing to utilise all the cores on a particular machine, and can run populations with HPC cluster workload managers like HTCondor and Slurm, allowing the user to run simulations on large computing clusters. We provide documentation that is automatically generated based on docstrings and a suite of Jupyter notebooks. These notebooks consist of technical tutorials on how to use binary_c-python and use-case scenarios aimed at doing science. Much of binary_c-python is covered by unit tests to ensure reliability and correctness, and the test coverage is continually increased as the package is improved.
description: Published in the JOSS
Heat‐related fatalities in North Carolina 1999–2017
Creators: name: Nocera, Maryalice
name: Ranapurwala, Shabbar I.
name: Richardson, David B.
name: McClure, Elizabeth S.
Publisher: name: Wiley
Year: 2024

description:
OBJECTIVES: Research shows the highest rates of occupational heat-related fatalities among farm laborers and among Black and Hispanic workers in North Carolina (NC). The Hispanic population and workforce in NC have grown substantially in the past 20 years. We describe the epidemiology of heat-related fatal injuries in the general population and among workers in NC. METHODS: We reviewed North Carolina death records and records of the North Carolina Office of the Chief Medical Examiner to identify heat-related deaths (primary International Classification of Diseases, Tenth Revision diagnosis code: X30 or T67.0-T67.9) that occurred between January 1, 1999, and December 31, 2017. Decedent age, sex, race, and ethnicity were extracted from both the death certificate and the medical examiner's report as well as determinations of whether the death occurred at work. RESULTS: In NC between 1999 and 2017, there were 225 deaths from heat-related injuries, and 25 occurred at work. The rates of occupational heat-related deaths were highest among males, workers of Hispanic ethnicity, workers of Black, multiple, or unknown race, and in workers aged 55-64. The highest rate of occupational heat-related deaths occurred in the agricultural industry. CONCLUSIONS: Since the last report (2001), the number of heat-related fatalities has increased, but fewer were identified as workplace fatalities. Rates of occupational heat-related deaths are highest among Hispanic workers. NC residents identifying as Black are disproportionately burdened by heat-related fatalities in general, with a wider apparent disparity in occupational deaths.
Anomalous Quark Chromomagnetic Moment and Single-Spin Asymmetries
Creators: name: Kochelev, Nikolai
name: Korchagin, Nikolai
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss a nonperturbative mechanism for the single-spin asymmetries (SSA) in the strong interaction. This mechanism is based on the existence of a large anomalous quark chromomagnetic moment (AQCM) induced by the nontrivial topological structure of QCD vacuum. Our estimations within the instanton liquid model for QCD vacuum show that AQCM generates very large SSA on the quark level. Therefore, this mechanism can be responsible for the anomalously large SSA observed in different high energy reactions with hadrons.
description: Latex, 8 pages, 4 figures, references added and discussion corrected
Spectra and elliptic flow for identified hadrons in 2.76 A TeV Pb+Pb collisions
Creators: name: Song, Huichao
name: Bass, Steffen
name: Heinz, Ulrich W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using the VISHNU hybrid model that couples (2+1)-dimensional viscous hydrodynamics to a microscopic hadronic transport model, we calculate the multiplicity, p_T spectra and elliptic flow for pions, kaons, and protons in 2.76 A TeV Pb+Pb collisions, using MC-KLN initializations with smoothed initial conditions, obtained by averaging over a large number of events. The results from our calculations are compared to data from the ALICE collaboration, showing nice agreement over several centrality bins. Using the same inputs, we predict the p_T spectra and elliptic flow for phi mesons and explore its flow development in the strong and weak coupling limits through hydrodynamic calculations with different decoupling temperatures. In addition we study the influence of baryon and anti-baryon annihilation processes on common observables and demonstrate that by including annihilation processes below a switching temperature of 165 MeV, VISHNU provides a good description of the multiplicity and p_T spectra for pions, kaons and protons measured by PHENIX and ALICE at both RHIC and the LHC.
description: 9 pages, 8 figures, wiith Fig.2 updated in version 2
Quantitative Comparison of Methods for Predicting the Arrival of Coronal Mass Ejections at Earth based on multi-view imaging
Creators: name: Colaninno, R. C.
name: Vourlidas, A.
name: Wu, C. -C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the performance of six methods for predicting the CME time of arrival (ToA) and velocity at Earth using a sample of nine Earth-impacting CMEs between May 2010 and June 2011. The CMEs were tracked continuously from the Sun to near Earth in multi-viewpoint imaging data from STEREO SECCHI and SOHO LASCO. We use the Graduate Cylindrical Shell (GCS) model to estimate the three-dimensional direction and height of the CMEs in every image out to $\sim$200 R$_\odot$. We fit the derived three-dimensional (deprojected) height and time data with six different methods to extrapolate the CME ToA and velocity at Earth. We compare the fitting results with the in situ data from the WIND spacecraft. We find that a simple linear fit after a height of 50$R_\odot$ gives the best ToA with a total error $\pm$13 hours. For seven (78%) of the CMEs, we are able to predict the ToA to within $\pm$6 hours. These results are a full day improvement over past CME arrival time methods that only used SOHO LASCO data. We conclude that heliographic measurements, beyond the coronagraphic field of view, of the CME front made away from the Sun-Earth line are essential for accurate predictions of their time of arrival.
Quantum Dynamics in a Ferromagnetic Atomic Gas
Creators: name: Meyer-Hoppe, Bernd
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: spinor Bose-Einstein condensate
subject: spin-changing collisions
subject: ferromagnetic interaction
subject: phase diagrams
subject: quantum phase transitions
subject: excited-state quantum phase transitions
subject: Spinor-Bose-Einstein-Kondensat
subject: spinändernde Stöße
subject: ferromagnetische Wechselwirkung
subject: Phasendiagramme
subject: Quantenphasenübergänge
subject: Quantenphasenübergänge angeregter Zustände
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Bose-Einstein condensates (BECs) provide an extraordinary system to study many-body quantum effects with a high degree of control. Using such ultra-cold gases, microscopic quantum effects become visible on a macroscopic scale as thermal ﬂuctuations are negligible. In particular, quantum phase transitions can be observed. These phase transitions can be indicated by an order parameter that abruptly changes at the critical value of a certain control parameter. Throughout this work, a spin-1 BEC with ferromagnetic interactions and zero magnetization is considered. This system exhibits three ground-state quantum phases that can be controlled by an effective magnetic ﬁeld. These phases have been explored both theoretically and experimentally in the last two decades. Quantum phase transitions are by deﬁnition only applicable to the ground state of a system. However, this powerful concept can be extended to states with non-zero energy. Such excited-state quantum phase transitions (ESQPTs) can be driven by a conventional control parameter, but, interestingly, also by a variation of the excitation energy only. ESQPTs have been studied theoretically and their existence itself has been revealed, e.g., in molecular spectra. However, a thorough investigation by an order parameter and in particular the experimental mapping of the corresponding phase diagram remain an open challenge in any physical system. In this thesis, an interferometric order parameter is employed to experimentally map out an excited-state quantum phase diagram. This order parameter is based on dynamical behavior of coherent states that resemble the mean-ﬁeld phase-space trajectories of excited-state phases. While a ferromagnetic spin-1 BEC with zero magnetization serves as an exemplary platform, the ﬁndings can be applied to other quantum systems with similar Hamiltonians. Importantly, the distinction of excited-state quantum phases utilizes the excitation energy as a second control parameter, which presents a key feature of ESQPTs. Our experiments therefore extend the powerful concept of quantum phases and quantum phase transitions to the entire Hilbert space of the spin-1 BEC.
Combining physical activity with psychological therapies for well-being and behaviour change of young people experiencing homelessness
Creators: name: Thomas, Jennifer
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Health psychology
Clinical and health psychology not elsewhere classified

description: Youth homelessness in the United Kingdom is a complex, multifaceted issue encompassing numerous determinants, pathways, and often deleterious effects on mental health and wellbeing. Despite the disproportionately high prevalence of mental disorders amongst this population, few access or receive appropriate treatment, predominantly due to limited availability, lack of awareness, and fear of stigmatisation. Evidently, there is an urgent need to address the health inequalities experienced by young people experiencing homelessness (YPEH), through implementing novel strategies which encourage uptake, engagement, and adherence to effective treatments. This Thesis explored the potential for physical activity (PA) as a viable means by which YPEH may be more likely to engage with psychological therapy. While this concept initially underpinned the primary aim of this project, a comprehensive review of the evidence-base indicated that psychologically-informed PA could offer a standalone treatment option- with comparable effects to psychological therapies. Utilising these findings, and evidence derived from the extant literature, a theoretically-informed intervention comprising PA and Dialectical Behavioural Therapy Skills Training (DBT-ST) was developed for YPEH, to establish feasibility, acceptability, and appropriateness of implementing this complex intervention with this population. While findings from this Pilot Study were evaluated per protocol, this period coincided with the onset of the global COVID-19 pandemic, which presented unprecedented challenges, and requirements to adapt this research project accordingly. Paradoxically, these extraordinary circumstances afforded a unique insight into the effects of isolation and restrictions on the well-being, self-esteem, and PA behaviours of relatively large sample (n = 50) of YPEH; with findings elucidating the need to incorporate sedentary behaviour (SB) as a distinct variable to PA, for the ensuing multi-site study. A two-arm study comparing psychologically-informed group PA delivered either alone, or with adjunctive DBT-ST was designed, implemented, and evaluated with two groups of YPEH. Despite several implementation challenges, mixed-method evaluations of the interventions provided several important contributions to the field, including the effectiveness of groupbased PA, barriers and facilitators to implementation, and postulated mechanisms of effect for supporting positive outcomes with this population. The accumulated evidence acquired throughout this Thesis provides novel, timely, and important insights into not only 'what works' when supporting YPEH, but also 'how, and why' opportunities can engender positive effects.
Synthesis of the substituted 7H-pyrano[2,3-d]isoxazol-7-ones from allomaltol-containing oximes
Creators: name: Milyutin, Constantine V.
name: Komogortsev, Andrey N.
name: Melekhina, Valeriya G.
name: Lichitsky, Boris V.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Computational Biology

description: Convenient approach for the synthesis of previously unknown 7H-pyrano[2,3-d]isoxazol-7-one core was elaborated. The presented method is based on two stage process including preparation of diketone monoximes and their subsequent intramolecular dehydration. It was shown that among various dehydrating agents the best results were achieved using system TsCl/Et3N. The advantages of the considered procedure are easily available starting compounds, simple experimental procedure and isolation of the final products, avoiding column chromatography.
Recovery of Low-Rank Matrices under Affine Constraints via a Smoothed Rank Function
Creators: name: Malek-Mohammadi, Mohammadreza
name: Babaie-Zadeh, Massoud
name: Amini, Arash
name: Jutten, Christian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, the problem of matrix rank minimization under affine constraints is addressed. The state-of-the-art algorithms can recover matrices with a rank much less than what is sufficient for the uniqueness of the solution of this optimization problem. We propose an algorithm based on a smooth approximation of the rank function, which practically improves recovery limits on the rank of the solution. This approximation leads to a non-convex program; thus, to avoid getting trapped in local solutions, we use the following scheme. Initially, a rough approximation of the rank function subject to the affine constraints is optimized. As the algorithm proceeds, finer approximations of the rank are optimized and the solver is initialized with the solution of the previous approximation until reaching the desired accuracy. On the theoretical side, benefiting from the spherical section property, we will show that the sequence of the solutions of the approximating function converges to the minimum rank solution. On the experimental side, it will be shown that the proposed algorithm, termed SRF standing for Smoothed Rank Function, can recover matrices which are unique solutions of the rank minimization problem and yet not recoverable by nuclear norm minimization. Furthermore, it will be demonstrated that, in completing partially observed matrices, the accuracy of SRF is considerably and consistently better than some famous algorithms when the number of revealed entries is close to the minimum number of parameters that uniquely represent a low-rank matrix.
description: Accepted in IEEE TSP on December 4th, 2013
Eligmodontia morgani Allen 1901
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Eligmodontia
Eligmodontia morgani

description: Eligmodontia morgani Allen, 1901. Bull. Am. Mus. Nat. Hist., 14:409. TYPE LOCALITY: Argentina, Santa Cruz Prov., basaltic canyons 50 mi SE Lake Buenos Aires. DISTRIBUTION: W Patagonian region of S Argentina and adjacent Chile; limits of distribution unknown, perhaps as far north as Neuquen Prov., Argentina. COMMENTS: This species epithet was used by Kelt et al. (1991) for the 2n=32 chromosomal form but whether this karyotype characterizes animals from the type locality needs verification. Other forms of Eligmodontia occur in the area.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 701, DOI: 10.5281/zenodo.7353098
description: {"references": ["Kelt, D. A., R. E. Palma, M. H. Gallardo, and J. A. Cook. 1991. Chromosomal multiformity in Eligmodontia (Muridae, Sigmodontinae), and verification of the status of E. morgani. Zeitschrift fur Saugetierkunde, 56: 352 - 358."]}
Modular zk-Rollup On-Demand
Creators: name: Lavaur, Thomas
name: Detchart, Jonathan
name: Lacan, Jérôme
name: Chanel, Caroline P. C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The rapid expansion of the use of blockchain-based systems often leads to a choice between customizable private blockchains and more secure, scalable and decentralized but expensive public blockchains. This choice represents the trade-off between privacy and customization at a low cost and security, scalability, and a large user base but at a high cost. In order to improve the scalability of secure public blockchains while enabling privacy and cost reduction, zk-rollups, a layer 2 solution, appear to be a promising avenue. This paper explores the benefits of zk-rollups, including improved privacy, as well as their potential to support transactions designed for specific applications. We propose an innovative design that allows multiple zk-rollups to co-exist on the same smart contracts, simplifying their creation and customization. We then evaluate the first implementation of our system highlighting a low overhead on existing transaction types and on proof generation while strongly decreasing the cost of new transaction types and drastically reducing zk-rollup creation costs.
description: url : https://www.sciencedirect.com/science/article/pii/S1084804523000978
2a-Alkylnorlitebamines and (7a,8)-didehydroisohomoaporphines: Synthesis and antiacetylcholinesterase activity verified via in silico molecular docking
Creators: name: Cheng, Ya-En
name: Ho, Sheau-Ling
name: Tsai, Sheng-Fa
name: Cheng, Ming-Che
name: Lu, Ching-Yi
name: Chang, Chia-Chuan
name: Lee, Shoei-Sheng
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: As N-alkyl-norlitebamines have been demonstrated to possess antiacetylcholinesterase activity, this study aimed to prepare related analogs to verify their structure–activity relationship. The compounds with the chemical skeletons of 2a-alkylnorlitebamines (6b–6e) and (7a,8)-didehydroisohomoaporphines (8b–8e, 9a, and 10b–10e) were designed and synthesized. In silico molecular docking of the 13 compounds on the acetylcholinesterase template indicated that 8a and 10b showed the highest docking scores (ΔG) (−20.56 Kcal/mol and −19.76 Kcal/mol, respectively). The reaction of peracylsecolaurolitsines under the modified Bischler–Napieralski procedure and subsequent NaBH4 reduction yielded 7a-alkyl-Bhomoaurolitsines 8a−8e, possessing a new skeleton, besides the expected 2a-alkyl-norlitebamines 10b−10e. Among these compounds, the two with the highest docking scores [Δ7a (8)-Bhomoaurolitsine (8a) and 2a-methyl-norlitebamine (10b)] showed better inhibitory activities against acetylcholinesterase (eel) with IC50 value of 24.71 μM and 26.13 μM, respectively. Therefore, compounds 8a and 10b could serve as leads for exploring potential acetylcholinesterase inhibitors for the treatment of Alzheimer’s disease.
Classical Conformal Blocks and Painleve VI
Creators: name: Litvinov, Alexey
name: Lukyanov, Sergei
name: Nekrasov, Nikita
name: Zamolodchikov, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the classical c\to \infty limit of the Virasoro conformal blocks. We point out that the classical limit of the simplest nontrivial null-vector decoupling equation on a sphere leads to the Painleve VI equation. This gives the explicit representation of generic four-point classical conformal block in terms of the regularized action evaluated on certain solution of the Painleve VI equation. As a simple consequence, the monodromy problem of the Heun equation is related to the connection problem for the Painleve VI.
description: 19 pages, 5 figures; references added
PhD Student Symposium
Creators: name: Center, Salem
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Plenary
Financial Market Regulation Program
event

description: July 30, 2020 PhD Student Symposium August 12, 2020 PhD Symposium Speaker Affiliations and Program PhD Symposium Student Papers The McCombs School of Business, through its newly established Salem Center for Policy, hosted an online doctoral student symposium on August 12, 2020 designed for Ph.D. candidates in finance, accounting, and economics who are in the process of developing a financial markets research program. Students engaged with researchers from leading universities, industry, and regulatory agencies to learn how policymakers use academic research to evaluate the efficacy of markets, respond to financial system disruptions, and implement reform measures. A series of panel discussions introduced students to active policy issues, open research questions, and how current developments can motivate and shape a research agenda, including through the lens of journal editors. Selected students presented their working papers and research ideas to program participants, and uniquely received combined feedback from academics, practitioners, and regulators. Promoting the relevance of academic research in the design, implementation, and evaluation of financial market regulation. Through events, analysis, and commentary, the program on financial markets regulation aims to elevate the role evidence-based decision making in the policy development process. Bringing the rigor of peer-reviewed research to decision-makers can mitigate the bias and conflicts that underlie many proposed regulatory actions, and lead to more balanced consideration of competing interests and perspectives among financial market participants. To achieve this, each initiative is focused on raising awareness of where evidence in support of financial market policy is needed, promoting regulator engagement with academic experts, and creating incentives for academics to apply their expertise to policy issues by measuring the relevance of their contributions to regulatory outcomes.