cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The equatorial motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime
Creators: name: Cebeci, Hakan
name: Özdemir, Nülifer
name: Şentorun, Seçil
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we perform a detailed analysis of the equatorial motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime. By working out the orbit equation in the radial direction, we examine possible orbit types. We investigate the conditions for existence of bound orbits in causality-preserving region as well as the conditions for existence of circular orbits for charged and uncharged particles. We also study the effect of NUT parameter on Newtonian orbits. Finally, we give exact analytical solutions of equations of equatorial motion for a charged test particle.
description: title changed , revised version
Robust Intrinsic and Extrinsic Calibration of RGB-D Cameras
Creators: name: Basso, Filippo
name: Menegatti, Emanuele
name: Pretto, Alberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Color-depth cameras (RGB-D cameras) have become the primary sensors in most robotics systems, from service robotics to industrial robotics applications. Typical consumer-grade RGB-D cameras are provided with a coarse intrinsic and extrinsic calibration that generally does not meet the accuracy requirements needed by many robotics applications (e.g., highly accurate 3D environment reconstruction and mapping, high precision object recognition and localization, ...). In this paper, we propose a human-friendly, reliable and accurate calibration framework that enables to easily estimate both the intrinsic and extrinsic parameters of a general color-depth sensor couple. Our approach is based on a novel two components error model. This model unifies the error sources of RGB-D pairs based on different technologies, such as structured-light 3D cameras and time-of-flight cameras. Our method provides some important advantages compared to other state-of-the-art systems: it is general (i.e., well suited for different types of sensors), based on an easy and stable calibration protocol, provides a greater calibration accuracy, and has been implemented within the ROS robotics framework. We report detailed experimental validations and performance comparisons to support our statements.
How well do experience curves predict technological progress? A method for making distributional forecasts
Creators: name: Lafond, François
name: Bailey, Aimee Gotway
name: Bakker, Jan David
name: Rebois, Dylan
name: Zadourian, Rubina
name: McSharry, Patrick
name: Farmer, J. Doyne
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Experience curves are widely used to predict the cost benefits of increasing the deployment of a technology. But how good are such forecasts? Can one predict their accuracy a priori? In this paper we answer these questions by developing a method to make distributional forecasts for experience curves. We test our method using a dataset with proxies for cost and experience for 51 products and technologies and show that it works reasonably well. The framework that we develop helps clarify why the experience curve method often gives similar results to simply assuming that costs decrease exponentially. To illustrate our method we make a distributional forecast for prices of solar photovoltaic modules.
Topological Magnetic Excitations on the Distorted Kagome Antiferromagnets: Applications to Volborthite, Vesignieite, and Edwardsite
Creators: name: Owerre, S. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this Letter, we identify a noncoplanar chiral spin texture on the distorted kagomé-lattice antiferromagnets induced by the presence of a magnetic field applied perpendicular to the distorted kagomé plane. The noncoplanar chiral spin texture has a nonzero scalar spin chirality similar to a chiral quantum spin liquid with broken time-reversal symmetry. In the noncoplanar regime we observe nontrivial topological magnetic excitations and thermal Hall response through the emergent field-induced scalar spin chirality in contrast to collinear ferromagnets in which the Dzyaloshinskii-Moriya (DM) spin-orbit interaction is the driving force. Our results shed light on recent observation of thermal Hall conductivity in distorted kagomé volborthite at nonzero magnetic field with no signal of DM spin-orbit interaction, and the results also apply to other distorted kagomé antiferromagnets such as vesignieite and edwardsite.
description: 8 pages + supplemental material, 8 figures. Updated version with Chern number computation
Control of interlayer delocalization in 2H transition metal dichalcogenides
Creators: name: Wang, Kuang-Chung
name: Stanev, Teodor K.
name: Valencia, Daniel
name: Charles, James
name: Henning, Alex
name: Sangwan, Vinod K.
name: Lahiri, Aritra
name: Mejia, Daniel
name: Sarangapani, Prasad
name: Povolotskyi, Michael
name: Afzalian, Aryan
name: Maassen, Jesse
name: Klimeck, Gerhard
name: Hersam, Mark C.
name: Lauhon, Lincoln J.
name: Stern, Nathaniel P.
name: Kubis, Tillmann
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It is assessed in detail both experimentally and theoretically how the interlayer coupling of transition metal dichalcogenides controls the electronic properties of the respective devices. Gated transition metal dichalcogenide structures show electrons and holes to either localize in individual monolayers, or delocalize beyond multiple layers - depending on the balance between spin-orbit inter- action and interlayer hopping. This balance depends on layer thickness, momentum space symmetry points and applied gate fields. A good quantitative agreement of predictions and measurements of the quantum confined Stark effect in gated MoS2 systems unveils intralayer excitons as major source for the observed photoluminesence.
description: 11 pages, 15 figures
Prevalence and Risk Factors of Positional Obstructive Sleep Apnea (POSA) among Children with Obstructive Sleep Apnea
Creators: name: Woravipa Israsena Na Ayudhya
name: Worawan Rojanawong
Publisher: name: Text and Journal Publication
Year: 2022
Subjects: positional obstructive sleep apnea
obstructive sleep apnea
children

description: Vajira Medical Journal, 66, 6, 381-388
Universal MBQC with generalised parity-phase interactions and Pauli measurements
Creators: name: Kissinger, Aleks
name: van de Wetering, John
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a new family of models for measurement-based quantum computation which are deterministic and approximately universal. The resource states which play the role of graph states are prepared via 2-qubit gates of the form $\exp(-i\fracπ{2^{n}} Z\otimes Z)$. When $n = 2$, these are equivalent, up to local Clifford unitaries, to graph states. However, when $n > 2$, their behaviour diverges in two important ways. First, multiple applications of the entangling gate to a single pair of qubits produces non-trivial entanglement, and hence multiple parallel edges between nodes play an important role in these generalised graph states. Second, such a state can be used to realise deterministic, approximately universal computation using only Pauli $Z$ and $X$ measurements and feed-forward. Even though, for $n > 2$, the relevant resource states are no longer stabiliser states, they admit a straightforward, graphical representation using the ZX-calculus. Using this representation, we are able to provide a simple, graphical proof of universality. We furthermore show that for every $n > 2$ this family is capable of producing all Clifford gates and all diagonal gates in the $n$-th level of the Clifford hierarchy.
description: 19 pages, accepted for publication in Quantum (quantum-journal.org). A previous version of this article had the title: "Universal MBQC with M{\o}lmer-S{\o}rensen interactions and two measurement bases"
Temperature scaling law for quantum annealing optimizers
Creators: name: Albash, Tameem
name: Martin-Mayor, Victor
name: Hen, Itay
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Physical implementations of quantum annealing unavoidably operate at finite temperatures. We point to a fundamental limitation of fixed finite temperature quantum annealers that prevents them from functioning as competitive scalable optimizers and show that to serve as optimizers annealer temperatures must be appropriately scaled down with problem size. We derive a temperature scaling law dictating that temperature must drop at the very least in a logarithmic manner but also possibly as a power law with problem size. We corroborate our results by experiment and simulations and discuss the implications of these to practical annealers.
description: 11 pages, 11 figures. v2: Updated to published version
Results of Posteromedial Capsule and Superficial Medial Collateral Ligament Release on Gap and Alignment in Total Knee Arthroplasty for Varus Knee Deformity by Computer-Assisted Surgery Measurement
Creators: name: Pruk Chaiyakit
name: Ittiwat Onklin
name: Weeranate Ampunpong
Publisher: name: Text and Journal Publication
Year: 2022
Subjects: total knee arthroplasty
varus knee
computer-assisted surgery
superficial medial collateral ligament release
posteromedial capsule release

description: Vajira Medical Journal, 66, 6, 389-396
On the spectrum of an operator in truncated Fock space
Creators: name: Ibrogimov, Orif O.
name: Tretter, Christiane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 47G10, 81Q10, 47N50

description: We study the spectrum of an operator matrix arising in the spectral analysis of the energy operator of the spin-boson model of radioactive decay with two bosons on the torus. An analytic description of the essential spectrum is established. Further, a criterion for the finiteness of the number of eigenvalues below the bottom of the essential spectrum is derived.
description: In this version a number of typos have been corrected. 14 pages
Stress Shielding in the Proximal Tibia after Total Knee Arthroplasty: A Finite Element Analysis of 2- and 4-mmthick Tibia Prosthesis Models
Creators: name: Pruk Chaiyakit
name: Krittamuk Ompornnuwat
name: Natthapong Hongku
name: Pattanaphong Janphuang
Publisher: name: Text and Journal Publication
Year: 2022
Subjects: finite element analysis
total knee arthroplasty
deformation of tibial tray
stress shielding

description: Vajira Medical Journal, 66, 6, 397-406
Treatment of imprecision in data repositories with the aid of KNOLAP
Creators: name: Rogova, Ermir
Publisher: name: University of Westminster
Year: 2010

description: Traditional data repositories introduced for the needs of business processing, typically focus on the storage and querying of crisp domains of data. As a result, current commercial data repositories have no facilities for either storing or querying imprecise/ approximate data. No significant attempt has been made for a generic and application independent representation of value imprecision mainly as a property of axes of analysis and also as part of dynamic environment, where potential users may wish to define their “own” axes of analysis for querying either precise or imprecise facts. In such cases, measured values and facts are characterised by descriptive values drawn from a number of dimensions, whereas values of a dimension are organised as hierarchical levels. A solution named H-IFS is presented that allows the representation of flexible hierarchies as part of the dimension structures. An extended multidimensional model named IF-Cube is put forward, which allows the representation of imprecision in facts and dimensions and answering of queries based on imprecise hierarchical preferences. Based on the H-IFS and IF-Cube concepts, a post relational OLAP environment is delivered, the implementation of which is DBMS independent and its performance solely dependent on the underlying DBMS engine.
تفنيد العلاقة الخاطئة بين الإنسان والمخلوقات السابقة وفق تحليل قرآني وفلسفي لنظرية داروين
Creators: name: Benzerara, Toufik
name: Benzerara, Toufik
Publisher: name: Zenodo
Year: 2025

description: يتناول هذا العمل أطروحة فكرية تحليلية وفلسفية تهدف إلى تفنيد الربط الخاطئ في نظرية داروين بين الإنسان والمخلوقات البدائية التي سبقته، مستندًا إلى الأدلة القرآنية والنصوص التفسيرية، مع تحليل موضوعي ومنطقي. يقدم المؤلف، بن زرارة توفيق، قراءة جديدة في قول الله تعالى: "إني جاعل في الأرض خليفة..." وتحليل تساؤل الملائكة حول الإنسان، كاشفًا عن احتمال وقوع "سوء تقدير" من الملائكة في استباق الحكم على الإنسان استنادًا لتشابه المخلوقات السابقة معه.

 

تسلط الأطروحة الضوء على أن داروين، رغم اجتهاده العلمي، قد وقع في نفس الفرضية التي انطلقت منها الملائكة، حينما اعتبر أن الإنسان تطور من مخلوقات بدائية تشبهه، مستندًا إلى الحفريات والتشابه الخارجي فقط. هذه القراءة تسعى لتقديم مقاربة متزنة لا تنكر جهود داروين، بل توضح موقع الخطأ المنهجي في تفسير المعطيات، وتربط ذلك بالسياق القرآني الذي أكد أن الله خلق الإنسان في "أحسن تقويم".

 
description:  

Ce travail présente une thèse analytique et philosophique visant à réfuter l'association erronée faite dans la théorie de Darwin entre l'homme et les créatures primitives qui l'ont précédé, en s'appuyant sur des preuves coraniques et des interprétations exégétiques. L'auteur, Ben Zerara Toufik, propose une nouvelle lecture du verset : "Je vais établir sur la terre un vicaire...", en analysant l'interrogation des anges sur l'homme, révélant une possible "erreur d'appréciation" de leur part en jugeant l'humanité prématurément, en raison de la ressemblance avec des créatures antérieures.

 

La thèse met en lumière le fait que Darwin, malgré ses efforts scientifiques, a reproduit la même hypothèse implicite que celle des anges, en considérant que l'homme descend de créatures similaires sur la base de fossiles et de ressemblances physiques. Cette lecture propose une approche équilibrée qui ne nie pas les efforts de Darwin, mais identifie la faille méthodologique de son interprétation et la confronte à la perspective coranique, selon laquelle l'homme a été créé dans "la plus belle stature".

 
description:  

This work presents an analytical and philosophical thesis aiming to refute the mistaken association made in Darwin’s theory between humans and the primitive creatures that preceded them. It relies on Quranic evidence and exegetical interpretation. The author, Ben Zerara Toufik, offers a novel reading of the verse: “Indeed, I will place upon the earth a vicegerent...”, analyzing the angels' question about mankind. He suggests that the angels may have made a "misjudgment" by anticipating human corruption based on the resemblance to earlier non-human creatures.

 

The thesis highlights that Darwin, despite his scientific effort, mirrored the same underlying assumption by proposing that humans evolved from similar beings, based solely on fossil records and physical resemblance. This perspective presents a balanced approach: it does not deny Darwin’s work but clarifies the methodological error in interpreting the data, juxtaposed with the Quranic perspective affirming that mankind was created in the "best of stature".
Clinical Methicillin-Resistant Staphylococcus aureus May Transfer from Hospital to the Community Through Foods
Creators: name: Pharanai Sukhumungoon
name: Sunisa Dangsriwan
name: Pattamarat Rattanachuay
Publisher: name: Text and Journal Publication
Year: 2022
Subjects: MRSA
hospital
gastrointestinal tract
mecA
bile salt

description: Vajira Medical Journal, 66, 6, 407-414
Spironolactone to Prevent the Progression of Vascular Calcification among Peritoneal Dialysis Patients: A Pilot Randomised Controlled Trial (SV-CAPD trial)
Creators: name: Peerapat Thanapongsatorn
name: Solos Jaturapisanukul
name: Torpong Claimon
name: Surazee Prommool
Publisher: name: Text and Journal Publication
Year: 2022
Subjects: coronary artery calcium score
peritoneal dialysis
vascular calcification
spironolactone

description: Vajira Medical Journal, 66, 6, 415-426
Spherical blow-ups of Grassmannians and Mori Dream Spaces
Creators: name: Massarenti, Alex
name: Rischter, Rick
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E05, 14L10, 14M15 (Primary) 14J45, 14MXX (Secondary)

description: In this paper we classify weak Fano varieties that can be obtained by blowing-up general points in prime Fano varieties. We also classify spherical blow-ups of Grassmannians in general points, and we compute their effective cone. These blow-ups are, in particular, Mori dream spaces. Furthermore, we compute the stable base locus decomposition of the blow-up of a Grassmannian in one point, and we show how it is determined by linear systems of hyperplanes containing the osculating spaces of the Grassmannian at the blown-up point, and by the rational normal curves in the Grassmannian passing through the blown-up point.
description: 23 pages. Exposition improved and corrected a statement on the stable base locus decomposition in Theorem 1.3 thanks to the comments of the referee
Fortifying Against Aphids: Unveiling the Secrets of Host Plant Resistance
Creators: name: Atanu Maji*, Sanjoy Samanta, Soheli Sarkar, Swagata Bhowmik
Publisher: name: trends in Agriculture Science
Year: 2024

description: Host plant resistance refers to the innate ability of certain plant species or varieties to withstand, tolerate, or deter damage caused by pests, pathogens, or environmental stresses. It involves various genetic, biochemical, and physiological mechanisms within the plant that make it less susceptible to the detrimental effects of pests or diseases. Host plant resistance can manifest through traits such as the production of secondary metabolites, structural barriers, altered growth patterns, or activation of defense mechanisms upon pest attack.
A modal analysis of the behavior of inertial particles in turbulence
Creators: name: Esmaily-Moghadam, Mahdi
name: Mani, Ali
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The clustering of small heavy inertial particles subjected to Stokes drag in turbulence is known to be minimal at small and large Stokes number and substantial at $\rm St = \mathcal O(1)$. This non-monotonic trend, which has been shown computationally and experimentally, is yet to be explained analytically. In this study, we obtain an analytical expression for the Lyapunov exponents that quantitatively predicts this trend. The sum of the exponents, which is the normalized rate of change of the signed-volume of a small cloud of particles, is correctly predicted to be negative and positive at small and large Stokes numbers, respectively, asymptoting to $τQ$ as $τ\to 0$ and $τ^{-1/2} |Q|^{1/4}$ as $τ\to \infty$, where $τ$ is the particle relaxation time and $Q(τ)$ is the difference between the norm of the rotation- and strain-rate tensors computed along the particle trajectory. Additionally, the trajectory crossing is predicted only in hyperbolic flows where $Q<0$ for sufficiently inertial particles with a $τ$ that scales with $|Q|^{-1/2}$. Following the onset of crossovers, a transition from clustering to dispersion is predicted correctly. We show these behaviors are not unique to three-dimensional isotropic turbulence and can be reproduced closely by a one-dimensional mono-harmonic flow, which appears as a fundamental canonical problem in the study of particle clustering. Analysis of this one-dimensional canonical flow shows that the rate of clustering, quantified as the product of the Lyapunov exponent and particle relaxation time, is bounded by $-1/2$, behaving with extreme nonlinearity in the hyperbolic flows and always remaining positive in the elliptic flows. These findings, which are stemmed from our analysis, are corroborated by the direct numerical simulations.
description: full article, 16 figures
Data from "QAOA with N · p ≥ 200"
Creators: name: Shaydulin, Ruslan
name: Pistoia, Marco
Publisher: name: Zenodo
Year: 2023

description: Data from the paper "QAOA with \(N \cdot p \geq 200\)".
description: v2 includes additional experiments on H2 device with up to 32 qubits
Development and validation of spectrophotometric simultaneous estimation of Hydrochlorothiazide and Spironolactone from the binary mixture by simultaneous equation method.
Creators: name: Sutradhar, Kumar Bishwajit
Publisher: name: Zenodo
Year: 2010
Subjects: Hydrochlorothiazide
Spironolactone
Simultaneous equation method
Diuretic
Simultaneous determination

description: Hydrochlorothiazide is a thiazide diuretic that is useful in the treatment of hypertension and it may be used alone or as an adjunct to other antihypertensive drugs. Spironolactone is a potassium-sparing diuretic that prevents body from absorbing too much salt and keeps potassium levels from getting too low and it can be combined with other diuretics to increase efficacy, most often in combination with a thiazide. The combination of hydrochlorothiazide and spironolactone is used to treat fluid retention (edema) in people with congestive heart failure, cirrhosis of the liver, or a kidney disorder called nephrotic syndrome. This medication also treats high blood pressure (hypertension). The present work deals with the development of a simple, accurate, rapid, reliable and an economical method for the simultaneous estimation of hydrochlorothiazide and spironolactone from a binary mixture by Vierodt's simultaneous equation method. The method involved solving simultaneous equation based on the measurement of absorbance at two wavelengths, 224.5m and 238nm, which is lmax of hydrochlorothiazide and spironolactone respectively in methanol. Both the drugs followed Beer's law in concentration range of 1-10µg/mL. Validity of the method was checked according to official guide line of British pharmacopoeia & United states pharmacopoeia for the validation of analytical procedure in terms of accuracy (98.83-99.38% for hydrochlorothiazide & 98.58~99.21% for spironolactone), linearity (within 1-10 µg/mL.), precision (inter-day & intra-day), and reproducibility (UV model-1240 & UV model-1700). Therefore, the proposed method is suitable and can be adopted for the simultaneous determination of Hydrochlorothiazide and Spironolactone from combined pharmaceutical dosage form in routine quality control analysis.
description: A Dissertation submitted to the Department of Pharmacy, The University of Asia Pacific, Dhaka, in partial fulfillment of the requirements for the degree of Master of Science in Pharmaceutical Technology.
EFFECTING OF CELEBRITY ENDORSEMENT ON CUSTOMERS’ ATTITUDE TOWARDS ADVERTISEMENT AND PURCHASE INTENTION: A CASE STUDY OF A SKINCARE SOAP IN THAILAND
Creators: name: Attaphorn Natithamapimuke
Publisher: name: Assumption University Press
Year: 2022
Subjects: Celebrity endorsement
Customer’s attitude towards advertisement
Customer’s purchase intention
Celebrity’s trustworthiness

description: AU-eJIR, 7, 2, 1-12
Phase-space structure analysis of self-gravitating collisionless spherical systems
Creators: name: Halle, Anaelle
name: Colombi, Stephane
name: Peirani, Sebastien
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the mean field limit, isolated gravitational systems often evolve towards a steady state through a violent relaxation phase. One question is to understand the nature of this relaxation phase, in particular the role of radial instabilities in the establishment/destruction of the steady profile. Here, through a detailed phase-space analysis based both on a spherical Vlasov solver, a shell code and a $N$-body code, we revisit the evolution of collisionless self-gravitating spherical systems with initial power-law density profiles $ρ(r) \propto r^n$, $0 \leq n \leq -1.5$, and Gaussian velocity dispersion. Two sub-classes of models are considered, with initial virial ratios $η=0.5$ ("warm") and $η=0.1$ ("cool"). Thanks to the numerical techniques used and the high resolution of the simulations, our numerical analyses are able, for the first time, to show the clear separation between two or three well known dynamical phases: (i) the establishment of a spherical quasi-steady state through a violent relaxation phase during which the phase-space density displays a smooth spiral structure presenting a morphology consistent with predictions from self-similar dynamics, (ii) a quasi-steady state phase during which radial instabilities can take place at small scales and destroy the spiral structure but do not change quantitatively the properties of the phase-space distribution at the coarse grained level and (iii) relaxation to non spherical state due to radial orbit instabilities for $n \leq -1$ in the cool case.
description: Accepted for publication in Astronomy and Astrophysics, 14 pages, 9 figures
Upper Limit on the Milky Way Mass from the Orbit of the Sagittarius Dwarf Satellite
Creators: name: Dierickx, Marion I. P.
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As one of the most massive Milky Way satellites, the Sagittarius dwarf galaxy has played an important role in shaping the Galactic disk and stellar halo morphologies. The disruption of Sagittarius over several close-in passages has populated the halo of our Galaxy with large-scale tidal streams and offers a unique diagnostic tool for measuring its gravitational potential. Here we test different progenitor mass models for the Milky Way and Sagittarius by modeling the full infall of the satellite. We constrain the mass of the Galaxy based on the observed orbital parameters and multiple tidal streams of Sagittarius. Our semi-analytic modeling of the orbital dynamics agrees with full $N$-body simulations, and favors low values for the Milky Way mass, $\lesssim 10^{12}M_\odot$. This conclusion eases the tension between $Λ$CDM and the observed parameters of the Milky Way satellites.
description: Accepted by ApJ; 11 pages
The effect of liberalisation of foreign direct investment on the economic development of Thailand: an empirical and political economy approach
Creators: name: Santipitaksakul, Siriwan
Publisher: name: University of Westminster
Year: 2010

description: This study seeks to assess the impact of the liberalisation of Foreign Direct Investment (FDI) on the Thai economic development. The case study of Thailand is interesting because the country has embraced market-driven development policies, particularly FDI and export-led growth strategy, for nearly forty years but her economic performance is far from being excellent. The need for assessing these policies is critical because it is observed that Transnational Corporations (TNCs) have increasingly benefited from the government‟s investment incentive scheme more than domestic investment projects. This study offers a multi-disciplinary literature review showing that FDI not only generates an inflow of resources into the host economy but also creates an outflow of other types of resources. While FDI may bring additional capital and advanced technology that contributing to economic growth, the introduction of superior firms into the domestic markets in developing countries may also amplify the magnitude of market imperfections. These imperfections may be found to be more beneficial to TNCs than to domestic entrepreneurs. Thus, without sufficient and appropriate government interventions, domestic entrepreneurs may find difficulties in developing their ownership-specific advantages. This advantage at the aggregate level can be regarded as the productive capability of the nation that helps to increase the country‟s competitive advantages along its development path. Thus, liberalising FDI without strategic planning may cause an unfavourable impact on economic development. Under these circumstances, the dependency remains tenable to explain the phenomenon. The study‟s proposition is approached and validated by the use of political economy and empirical analyses. From political economy analysis, it shows that Thailand has a number of economic features suggesting it to be a capital-dependent state as argued by dependency theory. The empirical analysis is then carried out to assess the impact of inward FDI on the Thai GNI. The framework and methods used in empirical study are borrowed from the Growth Economics. The income regressions, using the quarterly time series data from Q1:1970 - Q4:2009, show that in the case of Thailand, inward FDI has been beneficial to the growth of the economy only in the short run but has a negative impact on the GNI in the long run. Moreover, the study found that the empirical evidence appears to support the claim of Thailand being a capital-dependent state. It found that inward FDI empirically explains an increase in income deficits and totals imports. These impacts render the balance of payments in a vulnerable position. The study then concludes that, given the nature of the Thai political economy, the liberalisation of FDI seems to make Thailand a capital dependent state, and that Thailand has not fully benefited from FDI.
Conformative Filtering for Implicit Feedback Data
Creators: name: Khawar, Farhan
name: Zhang, Nevin L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Implicit feedback is the simplest form of user feedback that can be used for item recommendation. It is easy to collect and is domain independent. However, there is a lack of negative examples. Previous work tackles this problem by assuming that users are not interested or not as much interested in the unconsumed items. Those assumptions are often severely violated since non-consumption can be due to factors like unawareness or lack of resources. Therefore, non-consumption by a user does not always mean disinterest or irrelevance. In this paper, we propose a novel method called Conformative Filtering (CoF) to address the issue. The motivating observation is that if there is a large group of users who share the same taste and none of them have consumed an item before, then it is likely that the item is not of interest to the group. We perform multidimensional clustering on implicit feedback data using hierarchical latent tree analysis (HLTA) to identify user `tastes' groups and make recommendations for a user based on her memberships in the groups and on the past behavior of the groups. Experiments on two real-world datasets from different domains show that CoF has superior performance compared to several common baselines.
The need to ensure economic security in the health sector
Creators: name: Mamasolieva Shoxis Abdugapparovna, Samarqand Davlat Tibbiyot Universiteti "Jamoat salomatligi va sog'likni saqlash menejmenti" kafedrasi katta o'qituvchisi
name: Karimov Abduxalim Abdurazzaqovich, Samarqand Davlat Tibbiyot Universiteti "Jamoat salomatligi va sog'likni saqlash menejmenti" kafedrasi assistent
Publisher: name: Zenodo
Year: 2024

description: This  article  delves  into  the  critical  importance  of  ensuringeconomic  security  in  the  health  sector.  By  conducting  a  thorough  literatureanalysis,  we  explore  the  various  factors  influencing  economic  security  inhealthcare  and  propose  methods  to  enhance  financial  sustainability.  The  study emphasizes  the  significance  of  government  investment,  robust  healthcare  policies, and  pandemic  preparedness  to  fortify  the  economic  foundations  of  the  health sector.  The  results  and  discussions  aim  to  provide  insights  into  creating  a  resilient healthcare  system  that  can  withstand  unforeseen  challenges  while  offering suggestions for future improvements.
Alien calculus and a Schwinger--Dyson equation: two-point function with a nonperturbative mass scale
Creators: name: Bellon, Marc P.
name: Clavier, Pierre J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q40, 81T16, 40G10

description: Starting from the Schwinger--Dyson equation and the renormalization group equation for the massless Wess--Zumino model, we compute the dominant nonperturbative contributions to the anomalous dimension of the theory, which are related by alien calculus to singularities of the Borel transform on integer points. The sum of these dominant contributions has an analytic expression. When applied to the two-point function, this analysis gives a tame evolution in the deep euclidean domain at this approximation level, making doubtful the arguments on the triviality of the quantum field theory with positive \(β\)-function. On the other side, we have a singularity of the propagator for time like momenta of the order of the renormalization group invariant scale of the theory, which has a nonperturbative relationship with the renormalization point of the theory. All these results do not seem to have an interpretation in terms of semiclassical analysis of a Feynman path integral.
description: 15 pages, one embedded tikz figure. v2: prose polishing and misprints corrections, additional references v3: stronger case for acceleration. Generally matches the published version
Single magnetic adsorbates on s-wave superconductors
Creators: name: Heinrich, Benjamin W.
name: Pascual, Jose I.
name: Franke, Katharina J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In superconductors, magnetic impurities induce a pair-breaking potential for Cooper pairs, which locally affects the Bogoliubov quasiparticles and gives rise to Yu-Shiba-Rusinov (YSR or Shiba, in short) bound states in the density of states (DoS). These states carry information on the magnetic coupling strength of the impurity with the superconductor, which determines the many-body ground state properties of the system. Recently, the interest in Shiba physics was boosted by the prediction of topological superconductivity and Majorana modes in magnetically coupled chains and arrays of Shiba impurities. Here, we review the physical insights obtained by scanning tunneling microscopy into single magnetic adsorbates on the $s$-wave superconductor lead (Pb). We explore the tunneling processes into Shiba states, show how magnetic anisotropy affects many-body excitations, and determine the crossing of the many-body groundstate through a quantum phase transition. Finally, we discuss the coupling of impurities into dimers and chains and their relation to Majorana physics.
description: 18 pages, 17 figures, review
Classicalization of Quantum State of Detector by Amplification Process
Creators: name: Tirandaz, Arash
name: Ghahramani, Farhad Taher
name: Asadian, Ali
name: Golshani, Mehdi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has been shown that a macroscopic system being in a high-temperature thermal coherent state can be, in principle, driven into a non-classical state by coupling to a microscopic system. Therefore, thermal coherent states do not truly represent the classical limit of quantum description. Here, we study the classical limit of quantum state of a more relevant macroscopic system, namely the pointer of a detector, after the phase-preserving linear amplification process. In particular, we examine to what extent it is possible to find the corresponding amplified state in a superposition state, by coupling the pointer to a qubit system. We demonstrate quantitatively that the amplification process is able to produce the classical limit of quantum state of the pointer, offering a route for a classical state in a sense of not to be projected into a quantum superposition state.
description: 7 pages, 7 figures
Polynomial functions in the residue class rings of Dedekind domains
Creators: name: Li, Xiumei
name: Sha, Min
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11T06, 11T55

description: In this paper, as an extension of the integer case, we define polynomial functions over the residue class rings of Dedekind domains, and then we give canonical representations and counting formulas for such polynomial functions. In particular, we give an explicit formula for the number of polynomial functions over the residue class rings of polynomials over finite fields.
description: 15 pages
Equidistribution of Phase Shifts in Obstacle Scattering
Creators: name: Gell-Redman, Jesse
name: Ingremeau, Maxime
Publisher: name: arXiv
Year: 2017
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For scattering off a smooth, strictly convex obstacle $Ω\subset \mathbb{R}^d$ with positive curvature, we show that the eigenvalues of the scattering matrix -- the phase shifts -- equidistribute on the unit circle as the frequency $k \to \infty$ at a rate proportional to $k^{d - 1}$, under a standard condition on the set of closed orbits of the billiard map in the interior. Indeed, in any sector $S \subset \mathbb{S}^1$ not containing $1$, there are $c_d |S| \mathrm{Vol}(\partial Ω)\ k^{d - 1} + o(k^{d-1})$ eigenvalues for $k$ large, where $c_d$ is a constant depending only on the dimension. Using this result, the two term asymptotic expansion for the counting function of Dirichlet eigenvalues, and a spectral-duality result of Eckmann-Pillet, we then give an alternative proof of the two term asymptotic of the total scattering phase due to Majda-Ralston.
description: 14 pages, 2 figures. Final published version. Extensively revised
On an extremal problem for poset dimension
Creators: name: Guśpiel, Grzegorz
name: Micek, Piotr
name: Polak, Adam
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Let $f(n)$ be the largest integer such that every poset on $n$ elements has a $2$-dimensional subposet on $f(n)$ elements. What is the asymptotics of $f(n)$? It is easy to see that $f(n)\geqslant n^{1/2}$. We improve the best known upper bound and show $f(n)=\mathcal{O}(n^{2/3})$. For higher dimensions, we show $f_d(n)=\mathcal{O}\left(n^\frac{d}{d+1}\right)$, where $f_d(n)$ is the largest integer such that every poset on $n$ elements has a $d$-dimensional subposet on $f_d(n)$ elements.
description: removed proof of Theorem 3 duplicating previous work; fixed typos and references
Computing and Using Minimal Polynomials
Creators: name: Abbott, John
name: Bigatti, Anna Maria
name: Palezzato, Elisa
name: Robbiano, Lorenzo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Commutative Algebra (math.AC)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 13P25, 13P10, 13-04, 14Q10, 68W30

description: Given a zero-dimensional ideal I in a polynomial ring, many computations start by finding univariate polynomials in I. Searching for a univariate polynomial in I is a particular case of considering the minimal polynomial of an element in P/I. It is well known that minimal polynomials may be computed via elimination, therefore this is considered to be a "resolved problem". But being the key of so many computations, it is worth investigating its meaning, its optimization, its applications (e.g. testing if a zero-dimensional ideal is radical, primary or maximal). We present efficient algorithms for computing the minimal polynomial of an element of P/I. For the specific case where the coefficients are in Q, we show how to use modular methods to obtain a guaranteed result. We also present some applications of minimal polynomials, namely algorithms for computing radicals and primary decompositions of zero-dimensional ideals, and also for testing radicality and maximality.
description: This is a fully revised version. To be published in Journal of Symbolic Computation, special Issue on Symbolic Computation and Satisfiability Checking
The nuclear contacts and short range correlations in nuclei
Creators: name: Weiss, R.
name: Cruz-Torres, R.
name: Barnea, N.
name: Piasetzky, E.
name: Hen, O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model and effective field theories that describe the long-range structure of the nucleus using a mean- field approximation. We present here an effective description of the complementary short-range structure using contact terms and stylized two-body asymptotic wave functions. The possibility to extract the nuclear contacts from experimental data is presented. Regions in the two-body momentum distribution dominated by high-momentum, close-proximity, nucleon pairs are identified and compared to experimental data. The amount of short-range correlated (SRC) nucleon pairs is determined and compared to measurements. Non-combinatorial isospin symmetry for SRC pairs is identified. The obtained one-body momentum distributions indicate dominance of SRC pairs above the nuclear Fermi-momentum.
description: Accepted for publication in Physics Letters. 6 pages, 2 figures
A Theory of Exoplanet Transits with Light Scattering
Creators: name: Robinson, Tyler D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Exoplanet transit spectroscopy enables the characterization of distant worlds, and will yield key results for NASA's James Webb Space Telescope. However, transit spectra models are often simplified, omitting potentially important processes like refraction and multiple scattering. While the former process has seen recent development, the effects of light multiple scattering on exoplanet transit spectra has received little attention. Here, we develop a detailed theory of exoplanet transit spectroscopy that extends to the full refracting and multiple scattering case. We explore the importance of scattering for planet-wide cloud layers, where the relevant parameters are the slant scattering optical depth, the scattering asymmetry parameter, and the angular size of the host star. The latter determines the size of the "target" for a photon that is back-mapped from an observer. We provide results that straightforwardly indicate the potential importance of multiple scattering for transit spectra. When the orbital distance is smaller than 10-20 times the stellar radius, multiple scattering effects for aerosols with asymmetry parameters larger than 0.8-0.9 can become significant. We provide examples of the impacts of cloud/haze multiple scattering on transit spectra of a hot Jupiter-like exoplanet. For cases with a forward and conservatively scattering cloud/haze, differences due to multiple scattering effects can exceed 200 ppm, but shrink to zero at wavelength ranges corresponding to strong gas absorption or when the slant optical depth of the cloud exceeds several tens. We conclude with a discussion of types of aerosols for which multiple scattering in transit spectra may be important.
description: corrected missing Figure 1 and corresponding caption
A QUASI EXPERIMENTAL STUDY ON CREATIVITY OF MECHANICAL ENGINEERING CRAFT PRACTICE STUDENTS IN NIGERIAN TECHNICAL COLLEGES
Creators: name: Olusegun Olawale Olakotan
Publisher: name: Assumption University Press
Year: 2022
Subjects: Creativity
Teaching
Teaching Method
Technical College
Problem Solving Method
Lecture Method

description: AU-eJIR, 7, 2, 37-47
Non-abelian reciprocity laws and higher Brauer-Manin obstructions
Creators: name: Pridham, J. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We reinterpret Kim's non-abelian reciprocity maps for algebraic varieties as obstruction towers of mapping spaces of etale homotopy types, removing technical hypotheses such as global basepoints and cohomological constraints. We then extend the theory by considering alternative natural series of extensions, one of which gives an obstruction tower whose first stage is the Brauer--Manin obstruction, allowing us to determine when Kim's maps recover the Brauer-Manin locus. A tower based on relative completions yields non-trivial reciprocity maps even for Shimura varieties; for the stacky modular curve, these take values in Galois cohomology of modular forms, and give obstructions to an adelic elliptic curve with global Tate module underlying a global elliptic curve.
description: 44 pp; v2 title changed, refs added, some new material inc. Prop 3.26; v3 many corrections
The hyperbolic geometry of Markov's theorem on Diophantine approximation and quadratic forms
Creators: name: Springborn, Boris
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J06, 32G15

description: Markov's theorem classifies the worst irrational numbers with respect to rational approximation and the indefinite binary quadratic forms whose values for integer arguments stay farthest away from zero. The main purpose of this paper is to present a new proof of Markov's theorem using hyperbolic geometry. The main ingredients are a dictionary to translate between hyperbolic geometry and algebra/number theory, and some very basic tools borrowed from modern geometric Teichmüller theory. Simple closed geodesics and ideal triangulations of the modular torus play an important role, and so do the problems: How far can a straight line crossing a triangle stay away from the vertices? How far can it stay away from the vertices of the tessellation generated by the triangle? Definite binary quadratic forms are briefly discussed in the last section.
description: 37 pages, 15 figures; v2: references added, minor changes in exposition, final version