cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ATTITUDES OF LOCAL RESIDENTS TOWARD THE DEVELOPMENT OF TOURISM IN A DEVELOPING SOCIETY: THE CASE OF TORQABEH, IRAN
Creators: name: Seyfi, Siamak
name: Nikjoo, Adel
name: Rezaei, Omid
name: Siyamian, Abolfazl
Publisher: name: tourismos
Year: 2013

description: The purpose of this paper is to explore the attitude and perception of local residents toward tourism impacts and development in Torqabeh, one of the most popular tourism resort located in northeast of Iran. Two hundred and fifty households were randomly chosen as a sample of study and data were collected and analyzed with quantitative methods. The results of analysis revealed that local residents generally expressed a positive attitude toward tourism development in Torqabeh. There was evidence that Tourism-related job, community involvement in making decisions about tourism development, community attachment and length of residence are significant determinants of perceived tourism impacts and development. Furthermore, the study reinforces the need for inclusion of local people during future preliminary process of tourism planning in area.
description: tourismos, Vol. 8 No. 2 (2013)
title: Honoring the Farm: Identity and Meaning in Personal Narratives
Creators: name: Thomas, Jeannie B.
Publisher: name: Utah State University
Year: 1987

description: This thesis employs the literary folklorist methodology to explore personal narratives. Personal narratives told by Elizabeth (Beth) Wyatt Winn were analyzed. It was discovered that these narratives provide an eyewitness account of history, reveal world views, and encapsulate experiences into values and personal meanings. The depth of meaning found in Elizabeth (Beth) Wyatt Winn's personal narratives illustrates the importance of personal narratives in historical research and historical re-creation and simulation.
Appendices include several oral interviews containing personal narratives.
THE EFFECTS OF TOURISM DEVELOPMENT TOWARDS LIVELIHOOD SUSTAINABILITY OF THE ORANG ASLI AT THE KG.SG. RUIL, CAMERON HIGHLANDS
Creators: name: Mohd Salleh, Norlida Hanim
name: Othman, Redzuan
name: Mohd Idris, Siti Hajar
name: Jaafar, Abdul Hamid
name: Selvaratnam, Doris Padmini
Publisher: name: tourismos
Year: 2013

description: The main objective of this study is to measure the level of livelihood sustainability of indigenous people at Kg. Sg. Ruil located at a tourist destination of Cameron Highlands, Malaysia. Several indicators measuring livelihood sustainability as developed by the United Nations Development Program are employed in this study. Among the indicators measured are human assets, financial assets, physical assets, social assets and the disruption or threat to the livelihood of indigenous people (Orang Asli). Face-to-face interviews involving a total of 110 respondents were conducted from October to December 2011. The results indicate that the development of tourism in Cameron Highlands positively impact the indigenous people in terms of increment in their human assets, financial assets, physical and social assets. They also managed to handle the threats that may disrupt their livelihood sustainability.
description: tourismos, Vol. 8 No. 2 (2013)
USING DIGITAL LEARNING MEDIA AND LITERACY TO IMPROVE DESCRIPTIVE TEXT WRITING SKILLS OF JUNIOR HIGH SCHOOL STUDENTS
Creators: name: MULYATI
name: GUNAWAN SURYOPUTRO
name: WINI TARMINI
Publisher: name: Zenodo
Year: 2024
Subjects: Descriptive Text, Digital Media, Literacy, Media, Writing Skills.

description: Abstract

Current descriptive text writing instruction requires innovations in digital learning media to match the digital era. Students face challenges in improving their descriptive text writing skills, with proficiency levels often low. Implementing digital learning media and literacy is crucial to addressing this issue. This study investigates the impact of combining digital learning media and writing literacy on students' descriptive text writing skills using a true experimental quantitative approach. Data were collected from descriptive text writing tests at three junior high schools, focusing on title accuracy, identification, content description, language use, and conclusion. The study underwent validation, reliability, and prerequisite tests to ensure data normality and homogeneity. Descriptive and inferential statistical analyses, including t-tests and F-tests, were conducted. Results showed that the combined use of digital learning media and literacy significantly improved descriptive text writing skills. Hypothesis analysis revealed a t-value of 3.868 with a significance level of 0.000, indicating that the difference between the digital media group and the control group was significant. Thus, the combined application of digital learning media and literacy effectively enhances junior high school students' descriptive text writing skills.
title: Identification and Engineering of Nonribosomal Peptide Biosynthetic Systems
Creators: name: Xu, Fuchao
Publisher: name: Utah State University
Year: 2018

description: This research focuses on the understanding and engineering of nonribosomal peptide biosynthetic pathways in Streptomyces coelicolor CH999, Escherichia coli BAP1 and Saccharomyces cerevisiae BJ5464-NpgA. The biosynthetic systems of indigoidine from bacteria and beauvericin/bassianolide from fungi were studied in this research. The production of these valuble products was significantly increased by enhancing their synthetic pathway with metabolic engineering approaches.
Indigoidine is a bacterial natural product with antioxidant and antimicrobial activities. Its bright blue color resembles the industrial dye indigo, thus representing a new natural blue dye that may find uses in industry. Indigo is a dark blue crystalline powder and has been known for more than 4,000 years. It is commonly used to dye cotton yarn for the production of denim cloth to make blue jeans but the chemical synthesis of indigo requires harsh conditions and use of a strong base. Indigoidine is a new natural blue dye that is vi assembled from two molecules of L-glutamine under the catalysis of indigoidine synthetase. We identified a novel indigoidine synthetic gene from the genome of Streptomyces chromofuscus ATCC 49982. The successful heterologous expression of Sc-indC in E. coli BAP1 give us a pretty good yield of indigoidine under the optimized conditions. The production of this blue dye was then further improved by introducing two additional genes, sc-indB and glnA, into the biosynthetic pathway.
Beauvericins and bassianolide are anticancer natural products from fungi and are assembled by corresponding iterative nonribosomal peptide synthetases. The beauvericin (BbBEAS) and bassianolide (BbBSLS) synthetases were successfully reconstituted in S. cerevisiae BJ5464-NpgA, leading to the production of beauvericins and bassianolide, respectively. The production of beauvericins was significantly improved by co-expression of BbBEAS and ketoisovalerate reductase (KIVR). To better understand the synthetic strategy of fungal iterative NRPs, the module/domain of BbBSLS and BbBEAS were dissected and reconstituted in S. cerevisiae. The result shows the intermodular linker is essential for the reconstitution of the separate modules and the domain swapping results indicated the fungal iterative NRPSs use a liner biosynthetic route which is different than bacterial iterative NRPs. The in vitro reactions of C2 and C3 with monomer/dimer/trimerN-acetylcysteamines demonstrated that C2 forms the amide bond and C3 catalyses the synthesis of the ester bond. Beauvericin could be reconstituted in vitro through co-reaction of C2(BbBEAS) and C3(BbBEAS) with D-Hiv-SNAC and N-Me-L-Phe- SNAC. This work also provides an unprecedented tool for engineering fungal iterative NRPSs to yield ‘unnatural’ cyclooligomer depsipeptides with varied chain lengths.
The nature of the influence of various polypeptides on gastrin stimulated canine Pavlov pouch secretion
Creators: name: Sharp, Fraser Rosslyn
Publisher: name: University of British Columbia
Year: 2010

description: The effect of simultaneous continuous infusion of synthetic 15 leucine human gastrin and 4 polypeptides on gastric H⁺ and pepsinogen secretion is studied. The results of 112 five hour secretion tests on 4 Pavlov pouch dogs are reported. The doses of gastrin used were 0.175, 0.35 and 0.7 ug/kg-hr. In 32 control tests the infusion of gastrin alone at the lower doses resulted in stimulation of pepsinogen secretion. The higher dose had no apparent effect. All 3 doses increased the H⁺ output. In 26 tests, simultaneous infusion of synthetic glucagon 5.0 ug/kg-hr and gastrin at the three doses noted above resulted in an inhibition of secretion by about 32% and pepsinogen secretion by about 40%. The characteristics of the inhibition produced conform to a non-competitive pattern. Porcine secretion at a dose of 1.0 ug/kg-hr. inhibited H secretion by about 80 percent at the 3 doses of gastrin used. In these 25 tests the peptic activity of the collected secretion was reduced by 20 percent by secretin infusion. Closer examination of the data however suggests that peptic cell secretion was increased. The pepsinogen probably remained within the gastric gland lumen. The pattern of inhibition of H⁺ secretion had the characteristics of non-competitive inhibition. In 19 tests, a synthetic fragment of the secretin molecule (the N terminal amino acids 12-27) at three doses of 0.5, 1.0 and 2.5 ug/kg-hr. had no effect on gastrin stimulated H⁺ and pepsin secretion. The molecular structural similarities between secretin, glucagon and secretin (12-27) and their observed effects under the conditions of this study suggests the hypothesis: the inhibitory activity on acid secretion of glucagon and secretin reside in the C terminal 11 amino acid sequence. The pepsinogen effect of secretin is dependent on the tertiary molecular structural differences between secretin, secretin (12-27) and glucagon. In ten tests gastric inhibitory polypeptide at a dose of 2.5 ug/kg-hr. inhibited both acid and pepsinogen secretion. The inhibitory effect on H⁺ secretion appeared more marked, in this small number of tests, at a higher background stimulatory dose. This was not so for pepsinogen secretion. All the results reported were subjected to exhaustive statistical evaluation.
SPATIAL STRUCTURE OF TOURISM: AN APPLICATION OF NEW ECONOMIC GEOGRAPHY IN SELECTED COUNTRIES
Creators: name: Rasekhi, Saeed
name: Hosseini, Sepideh
Publisher: name: tourismos
Year: 2013

description: Assessing the spatial structure of tourism in selected countries during the period 1995-2010 is the main purpose of current paper. To reach this, through applying new economic geography, some spatial factors affecting on tourism agglomeration have been evaluated using panel data. The results of model estimation indicated that the economies of scale and the tourism cost are the most important factors in determining tourism agglomeration in selected countries. In addition, growth and development level of countries increase the tourism agglomeration in these countries. Also, based on this study results, maintain credibility in satisfaction of tourists increase the tourism agglomeration.Overall, the results of this study indicate the confirmation of new economic geography factors in determining tourism agglomeration, while previous studies are just considered the economic factors affecting on tourism agglomeration.
description: tourismos, Vol. 8 No. 2 (2013)
Active galaxy unification in the era of X-ray polarimetry
Creators: name: Dorodnitsyn, A.
name: Kallman, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Active Galactic Nuclei (AGN), Seyfert galaxies and quasars, are powered by luminous accretion and often accompanied by winds which are powerful enough to affect the AGN mass budget, and whose observational appearance bears an imprint of processes which are happening within the central parsec around the black hole (BH). One example of such a wind is the partially ionized gas responsible for X-ray and UV absorption ('warm absorbers'). Here we show that such gas will have a distinct signature when viewed in polarized X-rays. Observations of such polarization can test models for the geometry of the flow, and the gas responsible for launching and collimating it. We present calculations which show that the polarization depends on the hydrodynamics of the flow, the quantum mechanics of resonance line scattering and the transfer of polarized X-ray light in the highly ionized moving gas. The results emphasize the three dimensional nature of the wind for modeling spectra. We show that the polarization in the 0.1-10 keV energy range is dominated by the effects of resonance lines. We predict a $5-25%$ X-ray polarization signature of type-2 objects in this energy range. These results are general to flows which originate from a cold torus-like structure, located $\sim 1$pc from the BH, which wraps the BH and is ultimately responsible for the apparent dichotomy between type 1 and type 2 AGNs. Such signals will be detectable by future dedicated X-ray polarimetry space missions, such as the NASA Gravity and Extreme Magnetism SMEX, GEMS.
description: 13 pages, 4 figures, ApJ Letters accepted for publication
PRELIMINARY INSIGHTS ON BRITISH TRAVELLERS’ ACCOUNTS OF SICILIAN ORANGES
Creators: name: Cianflone, Eugenio
name: Di Bella, Giuseppa
name: Dugo, Giacomo
Publisher: name: tourismos
Year: 2013

description: EC-labelled products, identified by PDO, PGI and TSG tags, are linked to a geographical area and to specific growing/manufacturing methods that guarantee quality and sustain local traditions. These features can promote local products by raising tourists’ interest not only in local food but also in the place of origin of the same and in its history. This note wants to report ongoing research on a facet of cultural tourism that has not so far been studied: British Grand Tourists’ accounts of local quality products. The selected item was the PGI Sicilian orange, whereas the literary evidence was taken from Brydone’s travelogue and from Dennis’ travel book. The result is a description of a PGI product where specialists from Food Science and English Studies work in team to offer a model to be used in cultural tourism.
description: tourismos, Vol. 8 No. 2 (2013)
Discrete sources as the origin of the Galactic X-ray ridge emission
Creators: name: M., Revnivtsev
name: S., Sazonov
name: E., Churazov
name: W., Forman
name: A., Vikhlinin
name: R., Sunyaev
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: An unresolved X-ray glow (at energies above a few kiloelectronvolts) was discovered about 25 years ago and found to be coincident with the Galactic disk -the Galactic ridge X-ray emission. This emission has a spectrum characteristic of a 1e8 K optically thin thermal plasma, with a prominent iron emission line at 6.7 keV. The gravitational well of the Galactic disk, however, is far too shallow to confine such a hot interstellar medium; instead, it would flow away at a velocity of a few thousand kilometres per second, exceeding the speed of sound in gas. To replenish the energy losses requires a source of 10^{43} erg/s, exceeding by orders of magnitude all plausible energy sources in the Milky Way. An alternative is that the hot plasma is bound to a multitude of faint sources, which is supported by the recently observed similarities in the X-ray and near-infrared surface brightness distributions (the latter traces the Galactic stellar distribution). Here we report that at energies of 6-7 keV, more than 80 per cent of the seemingly diffuse X-ray emission is resolved into discrete sources, probably accreting white dwarfs and coronally active stars.
description: 16 pages, 3 figures. Draft version of the paper that will appear in Nature, Issue April 30, 2009
Additional file 1 of VEXAS syndrome in myelodysplastic syndrome with autoimmune disorder
Creators: name: Huang, Huijun
name: Zhang, Wenjun
name: Cai, Wenyu
name: Liu, Jinqin
name: Wang, Huijun
name: Qin, Tiejun
name: Xu, Zefeng
name: Li, Bing
name: Qu, Shiqiang
name: Pan, Lijuan
name: Huang, Gang
name: Gale, Robert Peter
name: Xiao, Zhijian
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Virology

description: Additional file 1: Table S1. Gene list of the 112-gene panel. Table S2. Frequency of autoimmune disorders identified in patients with MDS.
Large-scale collective motion of RFGC galaxies
Creators: name: Parnovsky, S. L.
name: Parnowski, A. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We processed the data about radial velocities and HI linewidths for 1678 flat edge-on spirals from the Revised Flat Galaxy Catalogue. We obtained the parameters of the multipole components of large-scale velocity field of collective non-Hubble galaxy motion as well as the parameters of the generalized Tully-Fisher relationship in the "HI line width - linear diameter" version. All the calculations were performed independently in the framework of three models, where the multipole decomposition of the galaxy velocity field was limited to a dipole, quadrupole and octopole terms respectively. We showed that both the quadrupole and the octopole components are statistically significant. On the basis of the compiled list of peculiar velocities of 1623 galaxies we obtained the estimations of cosmological parameters Omega_m and sigma_8. This estimation is obtained in both graphical form and as a constraint of the value S_8=sigma_8(Omega_m/0.3)^0.35 = 0.91 +/- 0.05.
description: Accepted for publication in Astrophysics and Space Science
STATE CONSTITUTIONAL RESPONSIBILITY IN FULFILLING THE RIGHT TO EDUCATION FOR PERSONS WITH DISABILITIES
Creators: name: MUHAMMAD MABRUR HASLAN
name: ZAINAL ASIKIN
name: L. M. HAYYANUL HAQ
name: ANY SURYANI HAMZAH
Publisher: name: Zenodo
Year: 2024
Subjects: State Constitutional Responsibility, Right to Education, Persons with Disabilities.

description: Abstract

Education is one of the most basic rights that every person must have. The right to education is a right of every citizen guaranteed in the constitution, which is commonly understood as a citizen's constitutional right. Constitutional rights are basic rights which were later adopted in the constitution which include human rights and citizens' rights which are guaranteed in the 1945 Constitution and apply to every Indonesian citizen. This research aims to answer how to strengthen the state's responsibilities in fulfilling the right to education for persons with disabilities from a Constitutional perspective. The type of research used is normative legal research using a statutory approach, philosophical approach, conceptual approach, and comparison. The theoretical framework used as a tool for analysis is state responsibility theory, human rights theory, legislation theory, and capability theory. The results of this dissertation research are as follows:  It was found that the essence of the state's responsibility in fulfilling the right to education for people with disabilities is to realize the value of social justice in education, provide human rights protection, and provide education for all (education for all). This departs from diversity, religion, culture, gender, physical and mental, social and motoric. The responsibility of the state in fulfilling the right to education for persons with disabilities in a constitutional perspective, is a concept of state responsibility which is in accordance with the provisions of the Constitution, namely the provisions of the fourth paragraph of the 1945 Constitution of the Republic of Indonesia which contains the state's aim of protecting the entire nation and making the nation's life intelligent based on Pancasila, and is expressly stated. and measured in the provisions of Article 28 H paragraph (2) which confirms that everyone has the right to receive special facilities and treatment to obtain the same opportunities and benefits in order to achieve equality and justice.
title: The Intergenerational Transmission of Parental Practices That Influence the Educational Outcome of Latinxs in the United States
Creators: name: Kemple Reeves, Ana E.
Publisher: name: Utah State University
Year: 2018

description: Parental involvement practices in education have traditionally referred to overt forms of involvement such as attending school meetings, parent teacher conferences, and volunteering at the school. Research suggests that Latinx parents do not utilize these approaches as much as they do subtler practices. These practices are manifested in parents’ communication with their children, their parenting styles, and the academic expectations they place on their children. The current study intended to recognize the parental practices used by Latinx parents that contribute to educational attainment and combat fixed beliefs regarding their lack of involvement in their children’s education. The data collection was completed via Qualtrics panel and funded by the CEHS Graduate Student Research Award grant.
The final sample consisted of 252 Latinx parents (age 18 or older) nationwide who had a child or children in kindergarten through sixth grades. Respondents reported being more involved in their children’s education than their parents. Each parenting variable was significantly associated with respondents’ academic outcomes with the exception of parental pressure. Results suggest intergenerational transmission of parenting practices regardless of acculturation level and support for a nuanced examination of predictors of academic achievement for Latinxs. Results also reflect vi Latinx parents’ involvement in their children’s education in meaningful ways. Parents’ level of acculturation played a role in the relationship between their self-reports and what they recalled about how they were parented. Specifically, the relationship between self-report and retrospective report of authoritarian parenting and parental pressure was strongest for respondents at the highest levels of Latinx acculturation and lowest at the lowest levels of Latinx acculturation. Overall, Latinx respondents appear to be following their parents’ parenting practices regardless of their level of acculturation, and these practices predict Latinxs’ educational attainment. Understanding how Latinx parents involve themselves in their children’s education debunks the myth that they are not involved and opens pathways to collaboration and support between these parents and the U.S. education system
Nanomechanics of an individual vortex in an anisotropic type-II superconductor
Creators: name: Brandt, E. H.
name: Mikitik, G. P.
name: Zeldov, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: As shown in recent experiments [Auslaender et al., Nature Physics 5, 35 (2009)] magnetic force microscopy permits one not only to image but also to manipulate an individual vortex in type-II superconductors, and this manipulation provides a new powerful tool to study vortex dynamics and pinning. We derive equations that describe the deformation of an individual vortex in an anisotropic biaxial type-II superconductor under the action of the microscope's magnetic tip. These equations take into account the driving force generated by the tip, the elastic force caused by the vortex deformation, and the pinning force exerted by point defects. Using these equations, we reproduce the main features of the experimental data obtained by Auslaender et al.
description: 11 pages, 13 figures
AN OPTIMAL HUB SELECTION ALGORITHM IN MARITIME TRANSPORT SYSTEMS BASED ON THE HUB AND SPOKE MODEL
Creators: name: Chainas, Konstantinos
Publisher: name: tourismos
Year: 2013

description: This report presents a heuristic algorithm for the optimal hub selection in a maritime transport system which is based on the hub and spoke model. This model has been successfully tested in other maritime systems such as the USA aviation. Its implementation in the maritime transport and particularly in areas such as the Aegean Sea gave very good results with respect to resource savings, improvement of services and drastic reduction of the total time needed for traveling in favour of tourism and shipping companies.
description: tourismos, Vol. 8 No. 2 (2013)
Dataset of Philippine Presidents Speeches from 1935 to 2016
Creators: name: Miranda, John Paul P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The dataset was collected to examine and identify possible key topics within these texts. Data preparation such as data cleaning, transformation, tokenization, removal of stop words from both English and Filipino, and word stemming was employed in the dataset before feeding it to sentiment analysis and the LDA model. The topmost occurring word within the dataset is "development" and there are three (3) likely topics from the speeches of Philippine presidents: economic development, enhancement of public services, and addressing challenges. The dataset was able to provide valuable insights contained among official documents. While the study showed that presidents have used their annual address to express their visions for the country. It also presented that the presidents from 1935 to 2016 faced the same problems during their term. Future researchers may collect other speeches made by presidents during their term; combine them to the dataset used in this study to further investigate these important texts by subjecting them to the same methodology used in this study. The dataset may be requested from the authors and it is recommended for further analysis. For example, determine how the speeches of the president reflect the preamble or foundations of the Philippine constitution.
description: 11 pages, 4 figures, 4 tables, dataset
title: Valoración pre y postratamiento de las cardiopatias congénitas mediante tomografia computarizada
Creators: name: Fernandez Valverde, Francisco
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Congenital
subject: CT
subject: Cardiac

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Presentar las indicaciones de la TC en el estudio pre y post tratamiento de las cardiopatías congénitas más habituales y su papel en la valoración de los tratamientos...
БОЖХОНА ТЎЛОВЛАРИ АУДИТИДА ИМПОРТ ТОВАРЛАР БОЖХОНА ҚИЙМАТИНИ ЎРГАНИШ АЛОҲИДА МЕЗОН СИФАТИДА
Creators: name: Садуллаев, Сардорбек
name: Маккамов, Зокиржон
Publisher: name: Zenodo
Year: 2023

description: Ушбу мақолада божхона тўловлари ставкалари ва уларни қўлланилиши таҳлили, товарнинг турли босқичлардаги қиймати, божхона қийматини аниқлаш усуллари, божхона қийматини аниқлаш усулларининг қиёсий таҳлили, олиб келинадиган товарнинг божхона қийматининг харажатлари қай тартибда ҳисобланиши, БЮД расмийлаштирилаётганда аниқланган ва божхона органи томонидан қабул қилинган товарнинг божхона қийматини аниқлаш усули ва божхона қиймати суммасининг ҳисоб-китоби ҳақида кенг ёритилган.
Analytical Bethe ansatz for the open AdS/CFT SU(1|1) spin chain
Creators: name: Nepomechie, Rafael I.
name: Ragoucy, Eric
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove an inversion identity for the open AdS/CFT SU(1|1) quantum spin chain which is exact for finite size. We use this identity, together with an analytic ansatz, to determine the eigenvalues of the transfer matrix and the corresponding Bethe ansatz equations. We also solve the closed chain by algebraic Bethe ansatz.
description: 20 pages; new references added; Explanation on crossing-like relation added
A NOTE ON THE MECHANISMS TO OBTAIN SUSTAINABLE ECOTOURISM THROUGH PRICE MANAGEMENT
Creators: name: Brida, Juan Gabriel
name: Garrido, Nicolás
name: Mureddu, Francesco
name: Pereyra, Juan Sebastian
Publisher: name: tourismos
Year: 2013

description: This note studies a market signal mechanism for assessing the short and long term tradeoff offered by the existence of natural resources in a tourism destination. We develop a theoretical model in which the destination price index is the tool for obtaining the sustainability of tourist areas. We assume that the stock of natural resources accumulates due to the regenerative natural capacity, but, at the same time, it is negatively affected by the number of tourists. When the demand price elasticity is higher than one, we show that there is a tradeoff between the use of the natural resources and the development of the tourism sector. In this scenario, we analyze how the optimal price changes as the parameters of the model vary.
description: tourismos, Vol. 8 No. 2 (2013)
Dead Zones as Thermal Barriers to Rapid Planetary Migration in Protoplanetary Disks
Creators: name: Hasegawa, Yasuhiro
name: Pudritz, Ralph E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planetary migration in standard models of gaseous protoplanetary disks is known to be very rapid ($\sim 10^5$ years) jeopardizing the existence of planetary systems. We present a new mechanism for significantly slowing rapid planetary migration, discovered by means of radiative transfer calculations of the thermal structure of protoplanetary disks irradiated by their central stars. Rapid dust settling in a disk's dead zone - a region with very little turbulence - leaves a dusty wall at its outer edge. We show that the back-heating of the dead zone by this irradiated wall produces a positive gradient of the disk temperature which acts as a thermal barrier to planetary migration which persists for the disk lifetime. Although we analyze in detail the migration of a Super-Earth in a low mass disk around an M star, our findings can apply to wide variety of young planetary systems. We compare our findings with other potentially important stopping mechanisms and show that there are large parameter spaces for which dead zones are likely to play the most important role for reproducing the observed mass-period relation in longer planetary periods.
description: 19 pages, 3 figures, 1 table, accepted for publication in ApJ Letters
A New Calculation of the Ionizing Background Spectrum and the Effects of HeII Reionization
Creators: name: Faucher-Giguere, C. -A.
name: Lidz, A.
name: Zaldarriaga, M.
name: Hernquist, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The ionizing background determines the ionization balance and the thermodynamics of the cosmic gas. It is therefore a fundamental ingredient to theoretical and empirical studies of both the IGM and galaxy formation. We present here a new calculation of its spectrum that satisfies the empirical constraints we recently obtained by combining state-of-the-art luminosity functions and intergalactic opacity measurements. In our preferred model, star-forming galaxies and quasars each contribute substantially to the HI ionizing field at z<3, with galaxies rapidly overtaking quasars at higher redshifts as quasars become rarer. In addition to our fiducial model, we explore the physical dependences of the calculated background and clarify how recombination emission contributes to the ionization rates. We find that recombinations do not simply boost the ionization rates by the number of reemitted ionizing photons as many of these rapidly redshift below the ionization edges and have a distribution of energies. A simple analytic model that captures the main effects seen in our numerical radiative transfer calculations is given. Finally, we discuss the effects of HeII reionization by quasars on both the spectrum of the ionizing background and on the thermal history of the IGM. In regions that have yet to be reionized, the spectrum is expected to be almost completely suppressed immediately above 54.4 eV while a background of higher-energy (>~0.5 keV) photons permeates the entire universe owing to the frequency-dependence of the photoionization cross section. We provide an analytic model of the heat input during HeII reionization and its effects on the temperature-density relation.
description: 36 pages, including 16 figures, accepted by ApJ. Data in electronic form can be obtained at http://www.cfa.harvard.edu/~cgiguere/uvbkg.html
THE EFFECTS OF SUPPLY CHAIN MANAGEMENT APPLICATIONS ON THE PERFORMANCES OF ACCOMMODATION ESTABLISHMENT OPERATING IN TOURISM INDUSTRY
Creators: name: Yagci, Kamil
name: Akdag, Gurkan
Publisher: name: tourismos
Year: 2013

description: The fierce global competition in the 21st century is focused on supply chains rather than on individual companies. From a macro perspective, supply chain is a network of enterprises which are engaged in different functions ranging from the supply of the raw materials through the production and delivery of the endproduct to the target customers. In this study, an investigation on large scale accommodation enterprises has been conducted that aims to find out the impact of supply chain practices on business performance.
description: tourismos, Vol. 8 No. 2 (2013)
Profit warnings and stock returns: Evidence from moroccan stock exchange
Creators: name: Ghordaf, Ilyas El
name: Khamlichi, Abdelbari El
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Finance (q-fin.CP)
subject: General Finance (q-fin.GN)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: There is an important literature focused on profit warnings and its impact on stock returns. We provide evidence from Moroccan stock market which aims to become an African financial hub. Despite this practical improvement, academic researches that focused on this market are scarce and our study is a first investigation in this context. Using the event study methodology and a sample of companies listed in Casablanca Stock Exchange for the period of 2009 to 2016, we examined whether the effect of qualitative warning is more negative compared to quantitative warnings in a short event window. Our empirical findings show that the average abnormal return on the date of announcement is negative and statistically significant. The magnitude of this negative abnormal return is greater for qualitative warnings than quantitative ones.
title: Mamografía Digital más Tomosíntesis ¿ en proyección Oblicua o Craneocaudal?
Creators: name: Pina Insausti, Luis Javier
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: Screening
subject: Mammography
subject: Breast

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
La Tomosíntesis de mama (TM) o Mamografía Digital 3D es una técnica emergente.
Múltiples estudios recientemente publicados demuestran la capacidad de esta técnica de aumentar la sensibilidad diagnóstica para cáncer (cercano al 30%) y...
Observation of a new polyhalide phase in Ag-Cl$_2$ system at high pressure
Creators: name: Grzelak, Adam
name: Gawraczynnski, Jakub
name: Derzsi, Mariana
name: Struzhkin, Viktor
name: Somayazulu, Maddury
name: Grochala, Wojciech
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this short contribution, we examine Raman spectroscopic data from high-pressure and high-temperature experiments with Ag-Cl$_2$ system, and find that they are in good agreement with previously observed and calculated spectra of polychloride species. Our results imply the formation of a hitherto unknown AgCl$_x$ compound, which warrants further study.
description: 10 pages, 6 figures, plus supplementary material
THE POSITION OF CONSUMERS IN PURCHASING GOODS THROUGH ELECTRONIC TRANSACTION SYSTEMS: A JURIDICAL STUDY OF THE ACTIONS OF BUSINESS ACTORS IN PRODUCING GOODS THAT ARE DETRIMENTAL TO CONSUMERS
Creators: name: Sorta D.R.E. Cesilia Purba
name: Roy Sembel
name: Wiwik Sri Widiarty
name: Artje Tehupiory
Publisher: name: Zenodo
Year: 2024
Subjects: Consumers. Electronic Transactions, Business Actors.

description: Abstract

The implementation of online buying and selling often causes various kinds of problems in the way trade transactions are regulated. The process of e-commerce transactions starts from promotion and marketing problems to problems with selling, payment and contract making, causing the position of consumers to be weak, regulations such as the Civil Code, Law No. 8 of 1999 concerning consumer protection and Law No. 1 of 2024 concerning the Second Amendment to Law No. 11 of 2008 concerning Information and Electronic Transactions have not had an impact on consumer protection against the purchase of goods through the transaction system electronic. This study aims to find out and find consumer efforts against business actors who do not respond to losses in the Purchase of Goods Through Electronic Transaction Systems. 2) Consumers in the purchase of goods through the Electronic Transaction System are in a weak position and 3) a form of consumer legal protection against the purchase of goods through the electronic transaction system obtained from business actors in producing goods that are detrimental to consumers. The research method used is normative and empirical juridical with a research approach using a legislative approach, a conceptual approach, a case approach, a historical approach and acomparative approach, with secondary data sources through primary, secondary and tertiary legal materials with qualitative data analysis. Research Results: Consumers in purchasing goods through electronic transaction systems are often in a weak position compared to business actors. Some of the factors that cause these weaknesses include low consumer education and consumer awareness, suboptimal supervision and law enforcement, risks to Personal Data Protection, Ease of Access to Dispute Resolution Mechanisms and low Transparency and Accountability of Business Actors. Although Law Number 8 of 1999 concerning Consumer Protection (UUPK), Law Number 1 of 2024 concerning the Second Amendment to Law Number 11 of 2008 concerning Electronic Information and Transactions (UU ITE), and the Civil Code (KUHPerdata) have provided a legal framework to protect consumers, practical challenges still exist. Therefore, it is necessary to update laws and regulations related to the electronic transaction system, such as the Civil Code, the Civil Code and Law No. 30 of 1999 concerning Arbitration to create a fairer and safer electronic trading environment for all parties.
Dose-dependent isotherm of Kr adsorption on heterogeneous bundles of closed single-walled carbon nanotubes
Creators: name: Tsareva, Svetlana Yu
name: Mcrae, Edward
name: Valsaque, Fabrice
name: Devaux, Xavier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present 77 K isotherms of krypton adsorption on bundles of closed highly-pure HiPco single-walled carbon nanotubes (SWCNTs). Two volumetric adsorption protocols were used, one with an increasing Kr dose per injection (IAD), one with a constant dose (CAD). Detailed microstructural examination showed that the SWCNTs combine into small bundles (of 25-30 SWCNTs) which are heterogeneous in diameter with a consequential range of interstitial channel (IC) shapes and sizes. The IC-sites are the subnanoscaled pores with alternating enlargements and constrictions along the tube axes. This results in adsorption dosing (AD) dependent characteristics of the low-pressure region of the isotherm. In the IAD protocol the switch-back behavior of the isotherm stemmed from metastable adsorption. Using the CAD protocol, different branches are observed. Well-pronounced substeps were established which we interpret as corresponding to the formation of various phases of confined Kr with different atoms arrangement. The height of a given substep obtained in different measurements depends on the AD value which can strongly influence the population of the site. Some substeps existing only for certain values of AD suggests the existence of a certain selectivity or of a preferential phase formation according to this value.
description: {\'e}quipe 205 : mat{\'e}riaux carbon{\'e}sInstitut Jean Lamour, UMR 7198 CNRS - Universit{\'e} de Lorraine,
The Deep SWIRE Field III. WIYN Spectroscopy
Creators: name: Owen, Frazer N.
name: Morrison, G. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of spectroscopy using HYDRA on the WIYN 3.5m telescope of objects in the deep SWIRE radio field. The goal of the project was to determine spectroscopic redshifts for as many of the brighter objects in the field as possible, especially those detected in the radio and at 24 microns. These redshifts are primarily being used in studies of galaxy evolution and the connection of that evolution to AGN and star-formation. Redshifts measured for 365 individual objects are reported. The redshifts range from 0.03 to 2.5, mostly with z < 0.9. The sources were selected to be within the WIYN HYDRA field of approximately 30' in radius from the center of the SWIRE deep field, 10h46m00s, 59d 01'00" (J2000). Optical sources for spectroscopic observation were selected from a r-band image of the field. A priority list of spectroscopic targets was established in the following order: 20cm detections, 24 micron detections, galaxies with r < 20 and the balance made up of fainter galaxies in the field. We provide a table listing the galaxy positions, measured redshift and error, and note any emission lines that were visible in the spectrum. In practice almost all the galaxies with r < 19 were observed including all of the radio sources and most of the 24 microns sources with r < 20 and a sample of radio sources which had fainter optical counterparts on the r-band image.
description: 6 pages, 3 tables, 2 figures, full electronic tables at http://www.aoc.nrao.edu/~fowen/papers/SWIRE/WIYNpaper3/, accepted ApJ Suppl Series
title: Justice and the River: Community Connections to an Impaired Urban River in Salt Lake City
Creators: name: Carothers, Taya L.
Publisher: name: Utah State University
Year: 2018

description: Local communities have the right to participate in decision-making about environmental resources near where they live. Local governments have tried to gather feedback from communities to help improve the decisions they make, but have not always done a good job getting feedback from minority or urban communities. This dissertation provides one step toward obtaining this kind of public input in a majority minority community surrounding the Jordan River in Salt Lake City. Children and adults participated in this research. I present findings from two surveys, from work with children, and from adult interviews to understand how this community relates to their local river, what they like and do not like about it, and what they would like to see improved.
This research revealed that communities have both positive and negative views of the river, but overall see it as an important community resource that is highly valued. Communities would like to participate more in river decision-making and have suggestions for how they would like to see that happen. The results in this dissertation can help bridge the gap between local city government officials and this minority community to help improve the river environmental quality and connections to the community.
CHARACTERIZATION OF SECONDARY VORTEX THROUGH 90-DEGREE PIPE BEND OF DIFFERENT CROSS SECTIONS AND CURVATURE RATIOS
Creators: name: UMAIR MUNIR
name: SYED MURAWAT ABBAS NAQVI
name: MUHAMMAD YASAR JAVAID
name: MUHAMMAD WAQAS
name: HAFIZ MUHAMMAD WAQAS
Publisher: name: Zenodo
Year: 2024
Subjects: Dean Vortices, Secondary Flow, 90ᵒ Pipe Bend, Swirl Intensity, Pressure Coefficient.

description: Abstract

Bends are primary source of formation of secondary flow and swirling vortices in pipes, channels and ducts. Flow losses and heat transfer are strongly affected by presence of bends in the flow passage therefore, in depth characterization of flow through bends is required. In the current study, the three dimensional, turbulent and incompressible flow through 90-degree bend is examined by using a CFD package Star CCM+. The data is analyzed in the results section to evaluate the effect of changing bend curvature ratio (λ=RC/d) and shape of cross section on intensity of secondary flow. It is observed that swirl intensity reduces drastically as curvature ratio is increased. Twin secondary vortices are formed and their intensity is a function of pressure gradient in the curved region of bend. Furthermore, it is found that circular cross section better supports the formation of dean vortices and secondary flow as compared to square and rectangular cross sections. The intensity of swirling vortices is also found decreasing as the aspect ratio of the rectangular section is increased up to 3:1. It means that there are lower flow losses for rectangular cross section bends with high aspect ratios as compared to square and circular cross section bends.
Locomotor behaviour of the black bullhead, Ictalurus melas (Rafinesque) and brown bullhead, Ictalurus nebulosus (Le Sueur)
Creators: name: Troup, Victoria M.
Publisher: name: University of British Columbia
Year: 2010

description: The locomotor patterns of black and brown bullhead were studied in an electronically monitored fish tank and cinemato-graphically under constant environmental conditions. The size of turns, handedness, turning frequency, distance between turns, and velocity were computed and compared where possible with existing information for goldfish and other species. Two areas of the tank were considered--the central region and a strip around the periphery. Turning frequency and velocity were the least stable of the parameters studied and therefore perhaps the most useful as indicators of locomotor response to external stimuli. Handedness became more pronounced as the subjects approached the tank walls and as velocity increased, turn size decreased.