cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Timing and Spectral Analysis of HMXB OAO 1657-415 with NuSTAR
Creators: name: Sharma, Prince
name: Sharma, Rahul
name: Jain, Chetana
name: Dutta, Anjan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: This work presents a comprehensive timing and spectral analysis of high-mass X-ray binary pulsar, OAO 1657-415 by using the observation made with Nuclear Spectroscopic Telescope Array (NuSTAR) on June 2019. During this observation, OAO 1657-415 exhibited X-ray variability by a factor of about 3. X-ray pulsations at 37.03322(14) s were observed up to 70 keV. OAO 1657-415 was undergoing a spin-down phase with $\dot{P} = 9(1) \times 10^{-8}$ s s$^{-1}$. This is an order of about 100 larger than the long-term spin-up rate. The pulse profile evolved marginally during the observation. We have discussed the long-term pulse period history of the source spanning a time-base of 43 years, including the latest Fermi/GBM data. The 3-70 keV source spectrum is described by a partially covered cutoff power-law, an Fe K$_α$ line at 6.4 keV and a Compton shoulder at 6.3 keV. We report the presence of a cyclotron absorption feature around 40 keV, which is indicative of a surface magnetic field strength of $3.59 \pm 0.06 \ (1 + z)^{-1} \times 10^{12}$ and $3.29_{-0.22}^{+0.23} \ (1 + z)^{-1} \times 10^{12}$ G. This work shows the first robust presence of cyclotron absorption feature in the source.
description: Accepted for publication in MNRAS
DIFFERENT ESTIMATION METHODS FOR THE PARAMETER OF XGAMMA DISTRIBUTION AND THEIR COMPARISON
Creators: name: Sukanta Pramanik
name: Sandipan Maiti
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: Bootstrap confidence intervals
classical methods of estimation
entropy
mixture distribution
stress-strength reliability

description: The xgamma distribution is vital in reliability/survival analysis and biomedical research. In this article, different estimation methods are proposed for the parameter of this distribution. The distribution is a unique finite mixture of exponential distribution and gamma distribution. Some further properties of the distribution that are not available in the earlier literature are studied. We consider the maximum likelihood estimator, least squares estimator, weighted least squares estimator, percentile estimator, the maximum product spacing estimator, the minimum spacing absolute distance estimator, the minimum spacing absolute log-distance estimator, Cram´ er von Mises estimator, Anderson Darling estimator, right-tailed Anderson Darling estimator, and compare them using a comprehensive simulation study. For comparison purposes, the estimators’ bias and mean squared error are considered. A real data example is also a part of this work. Some model selection techniques are used to choose the best fitting of the distribution to the data.
title: Η συμβολή των προηγμένων τεχνολογιών διαδικτύου στην ψηφιοποίηση των εκκλησιαστικών κειμηλίων
title: The contribution of advanced internet technologies in the digitization of ecclesiastical relics
titleType: AlternativeTitle
Creators: name: Κορωναίου, Αικατερίνη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2022
Subjects: subject: Ιερά κειμήλια
subject: Ψηφιοποίηση
subject: Διάσωση
subject: Συντήρηση
subject: Εκκλησιαστικά μνημεία
subject: Λογισμικό πρόγραμμα

description: Η παρούσα μεταπτυχιακή διατριβή ερευνά την Συμβολή των Προηγμένων Τεχνολογιών Διαδικτύου και προγραμμάτων Ψηφιοποίησης στα Προγράμματα Διαχείρισης των εκκλησιαστικών κειμηλίων. Η συμβολή των εικονικών τεχνολογιών στον τομέα της διατήρησης της εκκλησιαστικής κληρονομιάς συζητείται πλέον ευρέως από την εκκλησιαστική κοινότητα, και όπως υποστηρίζει το Ίδρυμα Ποιμαντικής Επιμορφώσεως της Ιεράς Αρχιεπισκοπής Αθηνών η ψηφιοποίηση με προγράμματα προηγμένων τεχνολογιών θα συμβάλει στην ανάδειξη, διατήρηση και εκπαιδευτική αξιοποίηση των ιερών κειμηλίων των Ναών στην Ελλάδα. Σκοπός της παρούσας εργασίας είναι μέσα από μελέτες περίπτωσης που έχουν θέμα την καταγραφή, την ψηφιοποίηση με προηγμένες τεχνολογίες και την διαφύλαξη ιερών κειμηλίων να αναδείξει την αξία της συμβολής των προηγμένων τεχνολογιών στην συντήρηση αυτών, την ανάδειξη της υλικής και άυλης εκκλησιαστικής πολιτιστικής κληρονομιάς των ναών και την εύκολη προσβασιμότητα του κοινού στην γνωριμία με αυτά. Στόχος της έρευνας που διεξήχθη είναι να διερευνήσει την γνώμη των πολιτών για την ψηφιοποίηση των ιερών κειμηλίων και αν αυτή επηρεάζει το θρησκευτικό τους συναίσθημα καθώς χάνεται η αυθεντικότητα αυτών. Τα αποτελέσματα του θεωρητικού μέρους ανέδειξαν την έλλειψη ελληνικής βιβλιογραφίας πάνω σε αυτό το θέμα, την τεράστια συμβολή της ψηφιοποίησης στην διάσωση της κληρονομιάς αλλά και την ανάγκη αναγνώρισης του πτυχίου των αποφοίτων της Ανώτατης Εκκλησιαστικής Ακαδημίας Αθήνας και Θεσσαλονίκης με ειδικότητα «Προγράμματα διαχείρισης Εκκλησιαστικών κειμηλίων», καθώς έχουν λάβει εκπαίδευση στη χρήση των προηγμένων προγραμμάτων ψηφιοποίησης με τον απαραίτητο σεβασμό προς τα ιερά κειμήλια.
The Influence of L1 Grammatical Skills on Adult L2 Development in Two Learning Contexts
Creators: name: Finestrat Martinez, Irene
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Accounting for variability in second language (L2) acquisition is an important aim of our field. Interestingly, a growing number of studies reveal variability (individual differences, IDs) in the native language (L1, e.g., Dąbrowska, 2019), and some evidence points to a positive relationship between IDs in L1 literacy and oral skills and L2 acquisition (e.g., Sparks, 2012). However, gaps remain regarding the role of L1 grammatical skills in L2 development among adult learners. The present study investigates the extent to which IDs in L1 grammatical knowledge and processing explain variability in L2 grammatical and overall proficiency development and whether this connection is moderated by the learning context. Data was gathered from 58 L1 English speakers enrolled in intermediate-level Spanish classes in their home country, the AH group (n = 44), or in Alicante (Spain), the SA group (n = 14). A pre-posttest design was used to capture development of L2 grammatical knowledge (grammaticality judgement task), grammatical processing (picture selection task that captures grammar-based predictive processing), and overall proficiency (DELE and an Elicited Imitation Task). Individual differences in L1 grammatical knowledge were assessed through two subtests of the Test of Adolescent Language-3 battery (TOAL-3, Hammill, 1994) and the Modern Language Aptitude Test, part-IV (Carroll, 1990). In addition, three processing mechanisms involved in moment-to-moment computations of grammatical structure were assessed, namely, syntactic integration, adaptation, and depth of processing through a word monitoring (Hopp, 2015), picture description (Kaan & Chun, 2018), and picture selection task (Dąbrowska, 2019), respectively. Results revealed variability in L1 grammatical skills, as well as significant improvement of L2 grammatical knowledge and oral proficiency after a semester of study for both groups. Regression analyses suggested that the oral/aural engagement of L1 grammatical knowledge (TOAL-3) and L1 syntactic integration ability (Word Monitoring task) significantly explained variability in L2 predictive processing development. Although, the latter connection was moderated by the learning context, with a more positive role for the SA setting. This pattern of results extends previous evidence of linguistic interdependence to L1 grammatical skills among adult learners and highlights the need to explore the relationship between learner-internal and external factors in tandem.
Canonical quantization of the WZW model with defects and Chern-Simons theory
Creators: name: Sarkissian, Gor
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform canonical quantization of the WZW model with defects and permutation branes. We establish symplectomorphism between phase space of WZW model with $N$ defects on cylinder and phase space of Chern-Simons theory on annulus times $R$ with $N$ Wilson lines, and between phase space of WZW model with $N$ defects on strip and Chern-Simons theory on disc times $R$ with $N+2$ Wilson lines. We obtained also symplectomorphism between phase space of the $N$-fold product of the WZW model with boundary conditions specified by permutation branes, and phase space of Chern-Simons theory on sphere with $N$ holes and two Wilson lines.
description: 26 pages, minor corrections done
DISCRETE INVERSE GAMMA DISTRIBUTION BASED LOAD-SHARE MODEL WITH APPLICATION
Creators: name: Srivastava, Rachna
name: Pramendra Singh Pundir
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: Load-share system model
Discrete inverse gamma distribution
Bootstrapping
Bayesian estimation
MCMC technique

description: In reliability engineering, the multi-component load-sharing models are being used to amplify system’s reliability. This study consists of the k-component load-sharing parallel system model considering each component’s failure time distribution as discrete inverse gamma. The classical and Bayesian analysis for this model is performed. The maximum likelihood estimates along with their standard errors for the parameters, system’s reliability function, hazard rate function and reversed second rate of failure function are obtained. The asymptotic confidence intervals as well as two bootstrap intervals like bootstrap-p and bootstrap-t confidence intervals are constructed. Further, Bayes estimates along with their posterior standard errors and highest posterior density credible intervals for the parameters and system’s reliability characteristics are obtained by using Markov Chain Monte Carlo techniques. A detailed simulation table is formed to demonstrate the effectiveness of the theory developed. Finally, a real data set is used to illustrate the applicability of the model.
Locomotion of Electrocatalytic Nanomotors due to Reaction Induced Charge Auto-Electrophoresis
Creators: name: Moran, J. L.
name: Wheat, P. M.
name: Posner, J. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Bimetallic rod-shaped nanomotors swim autonomously in hydrogen peroxide solutions. Here we present a scaling analysis, computational simulations, and experimental data that show that the nanomotor locomotion is driven by fluid slip around the nanomotor surface due to electrical body forces. The body forces are generated by a coupling of charge density and electric fields induced by electrochemical reactions occurring on the nanomotor surface. We describe the dependence of nanomotor motion on the nanomotor surface potential and reaction-driven flux.
Spin bottleneck in resonant tunneling through double quantum dots with different Zeeman splittings
Creators: name: Huang, S. M.
name: Tokura, Y.
name: Akimoto, H.
name: Kono, K.
name: Lin, J. J.
name: Tarucha, S.
name: Ono, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigated the electron transport property of the InGaAs/GaAs double quantum dots, the electron g-factors of which are different from each other. We found that in a magnetic field, the resonant tunneling is suppressed even if one of the Zeeman sublevels is aligned. This is because the other misaligned Zeeman sublevels limit the total current. A finite broadening of the misaligned sublevel partially relieves this bottleneck effect, and the maximum current is reached when interdot detuning is half the Zeeman energy difference.
description: Added references. Changed content
Semi-indefinite-inner-product and generalized Minkowski spaces
Creators: name: Horvath, Akos G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 46C50; 46C20; 53B40

description: In this paper we parallelly build up the theories of normed linear spaces and of linear spaces with indefinite metric, called also Minkowski spaces for finite dimensions in the literature. In the first part of this paper we collect the common properties of the semi- and indefinite-inner-products and define the semi-indefinite-inner-product and the corresponding structure, the semi-indefinite-inner-product space. We give a generalized concept of Minkowski space embedded in a semi-indefinite-inner-product space using the concept of a new product, that contains the classical cases as special ones. In the second part of this paper we investigate the real, finite dimensional generalized Minkowski space and its sphere of radius $i$. We prove that it can be regarded as a so-called Minkowski-Finsler space and if it is homogeneous one with respect to linear isometries, then the Minkowski-Finsler distance its points can be determined by the Minkowski-product.
Abstract model theory
Creators: name: Fraser, Craig Graham
Publisher: name: University of British Columbia
Year: 2010

description: We define a notion of logic that provides a general framework for the study of extensions of first-order predicate calculus. The concept of partial isomorphism and its relation to infinitary logics are examined. Results on the definability of ordinals establish the setting for our proof of Lindstrom's Theorem: this theorem gives conditions that characterize first-order logic. We then consider the analogues to the general case of the compactness and Lowenheim properties. For a wide class of logics it is shown that interesting connections exist between the analogues of these properties.
On the Question Why There Exists Something Rather Than Nothing
Creators: name: Tumulka, Roderich
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: In my opinion, nothing useful has ever been written on the question in the title, and small is the contribution that I have to offer. I outline an explanation for why there is something rather than nothing, an explanation which, however, I believe is incorrect because it makes a certain empirical prediction (absence of qualia) that is incorrect. Nevertheless, it may be interesting to discuss this reasoning. It allows, in principle though not in practice, to derive the laws of nature and all physical facts about the universe. Then I elucidate which objections to this explanation are, in my opinion, valid and which are not.
description: 8 pages LaTeX, no figures
title: Wahrheit und Recht
title: Störung und Schutz regulatorischer, asylrechtlicher und medialer Wahrheitsfindung
titleType: Subtitle
Creators: name: Baade, Björnstjern
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Glaubhaftigkeit
subject: Desinformation
subject: Skeptizismus
subject: Recht
subject: 300 Sozialwissenschaften::340 Recht::340 Recht

description: Im vermeintlich »postfaktischen« Zeitalter scheint die Wahrheit einen schweren Stand zu haben. Die Suche nach ihr ist oft wirkmächtigen Störungen ausgesetzt. Doch gleich ob gefahrstoffrechtlich die Kanzerogenität von Glyphosat, asylrechtlich die Glaubhaftigkeit einer Verfolgungsgeschichte oder im Äußerungs- und Medienrecht Desinformation zu beurteilen sind: Das Recht stellt Schutzmechanismen, die einer sachwidrigen Beeinflussung entgegenwirken sollen. Aus der rechtsdogmatischen Analyse dieser konkreten Rechtspraxis heraus sucht Björnstjern Baade juristische Antworten auf grundlegende philosophische Wahrheitsfragen. Letztlich ist nicht die Wahrheit in der Krise, sondern das Vertrauen in die Wahrheitsfindung. Um diese Krise zu überwinden, plädiert der Autor für ein kritisch informiertes, aber praktisch operationalisierbares Verständnis von Objektivität.
Pairs of Frequency-based Nonhomogeneous Dual Wavelet Frames in the Distribution Space
Creators: name: Han, Bin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C40

description: In this paper, we study nonhomogeneous wavelet systems which have close relations to the fast wavelet transform and homogeneous wavelet systems. We introduce and characterize a pair of frequency-based nonhomogeneous dual wavelet frames in the distribution space; the proposed notion enables us to completely separate the perfect reconstruction property of a wavelet system from its stability property in function spaces. The results in this paper lead to a natural explanation for the oblique extension principle, which has been widely used to construct dual wavelet frames from refinable functions, without any a priori condition on the generating wavelet functions and refinable functions. A nonhomogeneous wavelet system, which is not necessarily derived from refinable functions via a multiresolution analysis, not only has a natural multiresolution-like structure that is closely linked to the fast wavelet transform, but also plays a basic role in understanding many aspects of wavelet theory. To illustrate the flexibility and generality of the approach in this paper, we further extend our results to nonstationary wavelets with real dilation factors and to nonstationary wavelet filter banks having the perfect reconstruction property.
A new integral representation for quasiperiodic fields and its application to two-dimensional band structure calculations
Creators: name: Barnett, Alex H.
name: Greengard, Leslie
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 65N25; 78M15

description: In this paper, we consider band-structure calculations governed by the Helmholtz or Maxwell equations in piecewise homogeneous periodic materials. Methods based on boundary integral equations are natural in this context, since they discretize the interface alone and can achieve high order accuracy in complicated geometries. In order to handle the quasi-periodic conditions which are imposed on the unit cell, the free-space Green's function is typically replaced by its quasi-periodic cousin. Unfortunately, the quasi-periodic Green's function diverges for families of parameter values that correspond to resonances of the empty unit cell. Here, we bypass this problem by means of a new integral representation that relies on the free-space Green's function alone, adding auxiliary layer potentials on the boundary of the unit cell itself. An important aspect of our method is that by carefully including a few neighboring images, the densities may be kept smooth and convergence rapid. This framework results in an integral equation of the second kind, avoids spurious resonances, and achieves spectral accuracy. Because of our image structure, inclusions which intersect the unit cell walls may be handled easily and automatically. Our approach is compatible with fast-multipole acceleration, generalizes easily to three dimensions, and avoids the complication of divergent lattice sums.
description: 25 pages, 6 figures, submitted to J. Comput. Phys
ECONOMIC ORDER QUANTITY MODEL FOR IMPERFECT ITEMS WITH SHORTAGE BACKORDERING
Creators: name: Singh, Priyanka
name: A.R. Nigwal
name: U.K. Khedlekar
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: EOQ inventory model
screening process
imperfect items
partial backordering

description: This study presents the development of an economic order quantity model (EOQ) specifically designed for imperfect quality items. The model takes into consideration three distinct scenarios: (a) Model I trigger a reorder when the inventory level reaches zero; (b) Model II initiates a reorder when the backordered quantity equals the imperfect quantity; (c) Model III initiates a reorder when the shortage persists. To distinguish between perfect and imperfect quality products, a screening process is implemented for each product lot. Upon product delivery from the supplier to the vendor, all received products undergo immediate inspection through the screening process. Following the EOQ ordering policy, the vendor sells imperfect products to customers at a reduced cost at the end of the cycle, rather than returning them to the supplier. To fulfil the remaining demand for high-quality products, the vendor procures such products from a local vendor at a higher price. This study optimizes the duration of positive inventory, selling price, and total profit per unit time. Model I, which exhibits the longest duration of positive inventory, demonstrates greater business stability compared to the other two models. The concavity property is analytically and numerically demonstrated, and a sensitivity analysis is provided to explore the impact of model parameters on outputs.
TOUCAN: A proTocol tO secUre Controller Area Network
Creators: name: Bella, Giampaolo
name: Biondi, Pietro
name: Costantino, Gianpiero
name: Matteucci, Ilaria
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Modern cars are no longer purely mechanical devices but shelter so much digital technology that they resemble a network of computers. Electronic Control Units (ECUs) need to exchange a large amount of data for the various functions of the car to work, and such data must be made secure if we want those functions to work as intended despite malicious activity by attackers. TOUCAN is a new security protocol designed to be secure and at the same time both CAN and AUTOSAR compliant. It achieves security in terms of authenticity, integrity and confidentiality, yet without the need to upgrade (the hardware of) existing ECUs or enrich the network with novel components. The overhead is tiny, namely a reduction of the size of the Data field of a frame. A prototype implementation exhibits promising performance on a STM32F407Discovery board.
ยาป้องกันการอาเจียนจาการใช้เคมีบำบัด ;Drug Therapy in Chemotherapy-induced Nausea and Vomiting
Creators: name: ศรีสมบัติ นวนพรัตน์สกุล
Publisher: name: คณะเภสัชศาสตร์ ม.ศิลปากร/โรงพิมพ์เพชรเกษมพริ้นติ้ง กรุ๊ป
Year: 2547
Subjects: substance P, serotonin, chemotherapy, nausea,vormiting

description: ก.ค.-ธ.ค., 1, ไทยไภษัชยนิพนธ์
Time Restricted Feeding (4-hour versus 6-hour) for Weight Loss in Obese Adults
Creators: name: Cienfuegos, Sofia
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Time restricted feeding (TRF) is a form of intermittent fasting that has gained substantial popularity over recent years as a weight loss regimen. Despite its growing popularity, very few studies have examined the weight loss efficacy of this diet. TRF involves eating within a specific window of time each day, and water fasting for the rest of the day. The goal of this study was to compare the effects of a 4-h TRF versus 6-h TRF on body weight, metabolic disease risk factors, inflammation, and sleep, in adults with obesity. Subjects with obesity (n = 58) were randomized to 1 of 3 groups: 1) 4-h TRF (ad libitum feeding between 3pm to 7pm, water fasting between 7pm to 3pm), 2) 6-TRF (ad libitum feeding between 1pm to 7pm, water fasting between 7pm to 1pm), or 3) control group (usual diet with no meal timing restrictions) for 8 weeks. Results from this study show that 8 weeks of 4-h and 6-h TRF decreases body weight by -3.2% and -3.2%, respectively, relative to controls. Subjects were adherent to the prescribed eating window on 6.2 days per week, and this level of adherence remained constant throughout the 8-week trial. Our findings also indicate that reducing the daily eating window to either 4-h or a 6-h decreases caloric intake by ~550 kcal/d, without intentional calorie counting. Both TRF interventions produced significant reductions in fasting insulin, HOMA-IR (measurement of insulin resistance) and oxidative stress, versus controls. However, other metabolic disease risk parameters such as plasma lipids, blood pressure, and inflammation, remained unchanged. As for sleep, sleep quality and duration remained unchanged in all groups. Our results also suggest that TRF is a safe diet therapy that does not induce any significant adverse effects. These data offer promise for the use of shorter (4-h and 6-h) eating windows as safe and effective weight loss regimens in adults with obesity. However, longer-term, larger-scale randomized controlled trials will be required before solid conclusions can be reached.
Measurement of the Longitudinal Proton Structure Function at HERA
Creators: name: ZEUS Collaboration
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The reduced cross sections for ep deep inelastic scattering have been measured with the ZEUS detector at HERA at three different centre-of-mass energies, 318, 251 and 225 GeV. From the cross sections, measured double differentially in Bjorken x and the virtuality, Q^2, the proton structure functions FL and F2 have been extracted in the region 5*10^-4 < x <0.007 and 20 < Q^2 < 130 GeV^2.
description: 23 pages, 4 figures (2 sub-figures), 6 tables (content as published in PLB)
แนวทางการตั้งตำรับยารูปแบบฟองฟู่ ;Formulation of Effervescent Dosage Forms
Creators: name: พรศักดิ์ ศรีอมรศักดิ์
Publisher: name: คณะเภสัชศาสตร์ ม.ศิลปากร/โรงพิมพ์เพชรเกษมพริ้นติ้ง กรุ๊ป
Year: 2547
Subjects: ยารูปแบบฟองฟู่, ยาเม็ดฟู่,แนวทางการตั้งตำรับ,การเลือกใช้ส่วนประกอบในตำรับ

description: ก.ค.-ธ.ค., 1, ไทยไภษัชยนิพนธ์
On the Redundancy of Birth and Death Rates in Homogeneous Epidemic SIR Models
Creators: name: Nill, Florian
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: SIRS model
subject: demographic parameters
subject: birth and death rates
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: The dynamics of fractional population sizes 𝑦𝑖=𝑌𝑖/𝑁 in homogeneous compartment models with time-dependent total population N is analyzed. Assuming constant per capita birth and death rates, the vector field 𝑌˙𝑖=𝑉𝑖(𝑌) naturally projects to a vector field 𝐹𝑖(𝑌) tangent to the leaves of constant population N. A universal formula for the projected field 𝐹𝑖 is given. In this way, in many SIR-type models with standard incidence, all demographic parameters become redundant for the dynamical system 𝑦˙𝑖=𝐹𝑖(𝑦). They may be put to zero by shifting the remaining parameters appropriately. Normalizing eight examples from the literature this way, they unexpectedly become isomorphic for corresponding parameter ranges. Thus, some recently published results turn out to have been covered already by papers 20 years ago.
Leveraging Language: Teacher-Identified Influences on Their Use of Linguistically Responsive Teaching
Creators: name: Vroom Fick, Sara
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: Linguistically Responsive Pedagogy is a necessity in the increasingly multilingual classrooms that make up schools in the United States. To leverage the full linguistic repertoire of students, teachers need to implement multilingual pedagogy that flows out of an understanding of language as culturally connected and dynamic. This study examines the beliefs and practices of nine teachers within their first three years of teaching. They all graduated with a degree in education, and endorsements in ESL or bilingual education, from a small liberal arts college in the suburbs of a large metro area in the Midwest. Participants’ beliefs and classroom practices were documented through a survey and semi-structured interviews. Of the nine participants, three were teaching in a Spanish/English bilingual context, three were general education teachers, and three were English language teachers. Their teaching contexts ranged from 2nd grade to high school. Three of the teachers identified as people of color and six identified as white. All participants scored in the moderate-high to high range of positive beliefs about multilingualism and the use of additional languages in the classroom. All participants described how an understanding of multilingual theory gained through their teacher preparation program, combined with concrete experiences with minoritized languages, formed their current beliefs. However, how theory and lived experiences interacted, and therefore the specific pathways that individuals took to arrive at those beliefs, varied by their cultural and linguistic backgrounds. Teachers of color used theory to validate their lived experiences, while white teachers needed additional lived experiences. For enacted practices, participants’ scores ranged from moderate-low to moderate-high. The factors most consistently cited by participants as supporting or constraining their practices were their teaching context – specifically the linguistic philosophy embraced by their context, their access to multilingual communities and resources, and the beliefs and practices of their colleagues. The impact of their teaching contexts is examined using a systems framework, which examines policy mechanisms at the regulative, normative, and cognitive levels. The findings have implications for teacher education and development, as well as the research of multilingual pedagogy and the enactment of language beliefs in context.
Integrable hydrodynamics of Calogero-Sutherland model: Bidirectional Benjamin-Ono equation
Creators: name: Abanov, A. G.
name: Bettelheim, E.
name: Wiegmann, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We develop a hydrodynamic description of the classical Calogero-Sutherland liquid: a Calogero-Sutherland model with an infinite number of particles and a non-vanishing density of particles. The hydrodynamic equations, being written for the density and velocity fields of the liquid, are shown to be a bidirectional analogue of Benjamin-Ono equation. The latter is known to describe internal waves of deep stratified fluids. We show that the bidirectional Benjamin-Ono equation appears as a real reduction of the modified KP hierarchy. We derive the Chiral Non-linear Equation which appears as a chiral reduction of the bidirectional equation. The conventional Benjamin-Ono equation is a degeneration of the Chiral Non-Linear Equation at large density. We construct multi-phase solutions of the bidirectional Benjamin-Ono equations and of the Chiral Non-Linear equations.
description: 28 pages, 1 figure
Making use of sub-resolution halos in N-body simulations
Creators: name: Armijo, Joaquin
name: Baugh, Carlton M.
name: Padilla, Nelson D.
name: Norberg, Peder
name: Arnold, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Conservative mass limits are often imposed on the dark matter halo catalogues extracted from N-body simulations. By comparing simulations with different mass resolutions, at $z=0$ we find that even for halos resolved by 100 particles, the lower resolution simulation predicts a cumulative halo abundance that is 5 per cent lower than in the higher resolution simulation. We propose a simple weighting scheme to utilise the halos that are usually regarded as being `sub-resolution'. With the scheme, we are able to use halos which contain only 11 particles to reproduce the clustering measured in the higher resolution simulation to within 5 per cent on scales down to $2 h^{-1}$ Mpc, thereby extending the useful halo resolution by a factor of ten below the mass at which the mass functions in the two simulations first start to deviate. The performance of the method is slightly worse at higher redshift. Our method allows a simulation to be used to probe a wider parameter space in clustering studies, for example, in a halo occupation distribution analysis. This reduces the cost of generating many simulations to estimate the covariance matrix on measurements or using a larger volume simulation to make large-scale clustering predictions.
description: 5 pages, 3 figures. Accepted for publication in MNRAS
Spontaneous breaking of chiral symmetry, and eventually of parity, in a $σ$-model with two Mexican hats
Creators: name: Giacosa, Francesco
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A sigma-model with two linked Mexican hats is discussed. This scenario could be realized in low-energy QCD when the ground state and the first excited (pseudo)scalar mesons are included, and where not only in the subspace of the ground states, but also in that of the first excited states, a Mexican hat potential is present. This possibility can change some basic features of a low-energy hadronic theory of QCD. It is also shown that spontaneous breaking of parity can occur in the vacuum for some parameter choice of the model.
description: 10 pages, 1 figure
Estimation of Stress-Strength Reliability Based on KME Model
Creators: name: Kavya P.
name: Manoharan, M.
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: KM-Exponential Stress-Strength reliability Estimation Simulation study

description: In reliability theory the estimation of stress-strength reliability is an important problem. It has many applications in engineering and physics areas. In many practical situations, the assumption of identical strength distributions may not be quite realistic because components of a system are of different structure. Here we establish the estimation of stress-strength reliability of the KM-Exponential (KME) distribution. In this article, we consider the case that the stress-strength variables are independent. KME distribution is parsimonious in parameter and has decreasing failure rate. The stress-strength reliability based on KME model is estabished and using maximum likelihood estimation method, the estimation of the stressstrength reliability is derived and also the asymptotic distribution. Simulation method is used to show the performance of the parameters and the 95% confidence interval is also calculated. With the help of simulated data, we depicts the application of the stress-strength reliability of KME distribution.
โรคซึมเศร้า Depression
Creators: name: ลาวัลย์ เซี่ยงจ้ง
Publisher: name: คณะเภสัชศาสตร์ ม.ศิลปากร/โรงพิมพ์เพชรเกษมพริ้นติ้ง กรุ๊ป
Year: 2547
Subjects: โรคซึมเศร้า, การรักษา

description: ก.ค.-ธ.ค., 1, ไทยไภษัชยนิพนธ์
Polarization Induced Switching Effect in Graphene Nanoribbon Edge-Defect Junction
Creators: name: Yin, G.
name: Liang, Y. Y.
name: Jiang, F.
name: Chen, H.
name: Wang, P.
name: Note, R.
name: Mizuseki, H.
name: Kawazoe, Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: With nonequilibrium Green's function approach combined with density functional theory, we perform an ab initio calculation to investigate transport properties of graphene nanoribbon junctions self-consistently. Tight-binding approximation is applied to model the zigzag graphene nanoribbon (ZGNR) electrodes, and its validity is confirmed by comparison with GAUSSIAN03 PBC calculation of the same system. The origin of abnormal jump points usually appearing in the transmission spectrum is explained with the detailed tight-binding ZGNR band structure. Transport property of an edge defect ZGNR junction is investigated, and the tunable tunneling current can be sensitively controlled by transverse electric fields.
description: 18 pages, 8 figures
Do Animals Have Rights?
Creators: name: Ladwig, Bernd
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: animals
subject: rights
subject: morality
subject: social justice
subject: political membership
subject: 300 Sozialwissenschaften::340 Recht::340 Recht
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: Do animals have moral rights? An affirmative answer follows from the best justification for human rights that we can give. The moral status not only of humans but also of animals consists in an egalitarian right to have rights. From this equal status, however, substantially equal rights follow only if the morally relevant interests are equal. A reasonably broad and differentiated understanding of our own, human animal nature reveals which interests we share with many other animals. Thus, sentient animals have basic rights to life and well-being, including volitional activities and access to beneficial social relationships. Further rights arise from special human–animal relationships that are also politically relevant. By subjecting animals and, thus, making them existentially dependent on us, we owe them more than mere protection and help in easily remediable emergencies. We thereby also assume associative duties, as they exist among fellow citizens. Therefore, we should open our understanding of the common good to the reality of species-mixed communities and represent animals politically.
Minimal Simple de Sitter Solutions
Creators: name: Haque, Sheikh Shajidul
name: Shiu, Gary
name: Underwood, Bret
name: Van Riet, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the minimal set of necessary ingredients to construct explicit, four-dimensional de Sitter solutions from IIA string theory at tree-level are O6-planes, non-zero Romans mass parameter, form fluxes, and negative internal curvature. To illustrate our general results, we construct such minimal simple de Sitter solutions from an orientifold compactification of compact hyperbolic spaces. In this case there are only two moduli and we demonstrate that they are stabilized to a sufficiently weakly coupled and large volume regime. We also discuss generalizations of the scenario to more general metric flux constructions.
description: 12 pages, 2 figures, important error in v1 corrected but main result unaltered; v3 sent to PRD; v4 version published in PRD, minor modifications for clarification
title: Mining legal arguments in court decisions
Creators: name: Habernal, Ivan
name: Faber, Daniel
name: Recchia, Nicola
name: Bretthauer, Sebastian
name: Gurevych, Iryna
name: Spiecker genannt Döhmann, Indra
name: Burchard, Christoph
Publisher: name: Springer
Year: 2025

description: Identifying, classifying, and analyzing arguments in legal discourse has been a prominent area of research since the inception of the argument mining field. However, there has been a major discrepancy between the way natural language processing (NLP) researchers model and annotate arguments in court decisions and the way legal experts understand and analyze legal argumentation. While computational approaches typically simplify arguments into generic premises and claims, arguments in legal research usually exhibit a rich typology that is important for gaining insights into the particular case and applications of law in general. We address this problem and make several substantial contributions to move the field forward. First, we design a new annotation scheme for legal arguments in proceedings of the European Court of Human Rights (ECHR) that is deeply rooted in the theory and practice of legal argumentation research. Second, we compile and annotate a large corpus of 373 court decisions (2.3M tokens and 15k annotated argument spans). Finally, we train an argument mining model that outperforms state-of-the-art models in the legal NLP domain and provide a thorough expert-based evaluation. All datasets and source codes are available under open lincenses at https://github.com/trusthlt/mining-legal-arguments.
Medication reconciliation กับมาตรฐานโรงพยาบาลและการบริการสุขภาพ
Creators: name: คฑามาศ แซ่ผ้าง
Publisher: name: คณะเภสัชศาสตร์ ม.ศิลปากร/ โรงพิมพ์มิตรเจริญการพิมพ์ นครปฐม
Year: 2553
Subjects: Madication Reconciliation, Medication Errors, Adverse drug events

description: 1(มค-ธค), 5, ไทยไภษัชยนิพนธ์
title: Los caminos de la sangre: vías de circulación venosa colateral en el síndrome de vena cava superior y causas del mismo
Creators: name: Sanchez Oro, Raquel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Thorax
subject: Mediastinum
subject: Veins / Vena cava
subject: CT
subject: MR-Angiography
subject: Conventional radiography
subject: Venous access
subject: Obstruction / Occlusion

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Revisar la etiología del síndrome de vena cava superior (SVCS). Estudiar las vías de circulación venosa colateral principales y las menos frecuentes que se desarrollan en el SVCS. Describir las colaterales infrecuentes y sus hallazgos en las...
ENHANCING ENGINEERING SCIENCES WITH UMA DISTRIBUTION: A PERFECT FIT AND VALUABLE CONTRIBUTIONS
Creators: name: R.A. Ganaie
name: C. Subramanian
name: V.P. Soumya
name: R. Shenbagaraja
name: Mahfooz Alam
name: D. Vedavathi Saraja
name: Rushika Kinjawadekar
name: Aafaq A. Rather
name: Showkat A. Dar
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: Length biased distribution
Uma distribution
Reliability analysis
Order statistics
Maximum likelihood estimation

description: In this study, we introduce a novel class of distributions called the length biased Uma distribution. This distribution is a specific instance of the broader weighted distribution family, known for its versatility in various applications. We explore the structural properties of the length biased Uma distribution and propose a robust parameter estimation technique based on maximum likelihood estimation. To assess its efficacy, we apply the newly introduced distribution to two real-world datasets, evaluating its flexibility and performance in comparison to existing models. The results obtained demonstrate the potential of the length biased Uma distribution as a valuable addition to the repertoire of statistical distributions, offering valuable insights for a wide range of practical applications.
Finite Size Effects in Equations of State under non-trivial Boundary Conditions
Creators: name: Yonezawa, Nobuhiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study free particles in a one-dimensional box with combinations of two types of boundary conditions: the Dirichlet condition and a one-parameter family of quasi-Neumann conditions at the two walls. We calculate energy spectra approximately and obtain equations of state having the same (one-dimensional) volume dependence as van der Waals equations of state. The dependence of the equations of state is examined for particles obeying Maxwell-Boltzmann, Bose-Einstein, or Fermi-Dirac statistics. Our results suggest that the deviation from ideal gas may also be realized as finite size effects due to the interaction between the particles and the walls.
description: 18pages, 3 figures
Cj0683 Is a Competence Protein Essential for Efficient Initialization of DNA Uptake in Campylobacter jejuni
Creators: name: Golz, Julia C.
name: Preuß, Sandra
name: Püning, Christoph
name: Gölz, Greta
name: Stingl, Kerstin
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: competence
subject: genetic diversity
subject: adaptation
subject: natural transformation
subject: pilQ
subject: Cj1474c
subject: Cj0011c
subject: comEC
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten

description: C. jejuni is an important food-borne pathogen displaying high genetic diversity, substantially based on natural transformation. The mechanism of DNA uptake from the environment depends on a type II secretion/type IV pilus system, whose components are partially known. Here, we quantified DNA uptake in C. jejuni at the single cell level and observed median transport capacities of approximately 30 kb per uptake location. The process appeared to be limited by the initialization of DNA uptake, was finite, and, finalized within 30 min of contact to DNA. Mutants lacking either the outer membrane pore PilQ or the inner membrane channel ComEC were deficient in natural transformation. The periplasmic DNA binding protein ComE was negligible for DNA uptake, which is in contrast to its proposed function. Intriguingly, a mutant lacking the unique periplasmic protein Cj0683 displayed rare but fully functional DNA uptake events. We conclude that Cj0683 was essential for the efficient initialization of DNA uptake, consistent with the putative function as a competence pilus protein. Unravelling features important in natural transformation might lead to target identification, reducing the adaptive potential of pathogens.
title: Clasificación PI-RADS en la Resonancia Magnética Mutiparamétrica  para el diagnostico del cáncer de próstata.
Creators: name: Ramos Rodriguez, Jose Ramon
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: Staging
subject: MR-Spectroscopy
subject: MR-Diffusion/Perfusion
subject: Pelvis
subject: Genital / Reproductive system male
subject: Abdomen

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Revisar la utilidad de la Clasificación PI-RADS en el diagnóstico del cáncer de próstata mediante la exploración de Resonancia Magnética...
USING INTERACTIVE METHODS IN LEARNING VARIOUS SEMAGES OF WORDS
Creators: name: Amirkulova, Zebuniso
name: Yoldosheva, Farangiz
Publisher: name: Zenodo
Year: 2025

description: This article provides information about modern forms of education, interactive methods, their theoretical foundations, and possibilities in studying various semantics of words. In particular, the advantages of using interactive methods in the primary education system are shown.
ESTIMATION OF STRESS STRENGTH RELIABILITY USING PRANAV DISTRIBUTION
Creators: name: Ankitha Lukose
name: Chacko, V.M.
Publisher: name: Reliability: Theory & Applications
Year: 2023
Subjects: stress strength model
maximum-likelihood estimator
bootstrap confidence intervals
asymptotic distributions and confidence interval

description: This paper deals with the estimation of stress strength reliability parameter R, which is the probability of Y less than X when X and Y are two independent distribution with different scale parameter and same shape parameter. The maximum likelihood method is used to find an estimator for R. We also obtain the asymptotic distribution of the maximum likelihood estimator of R. Based on this asymptotic distribution, the asymptotic confidence interval can be obtained. We also propose bootstrap confidence interval for the parameter R. Analysis of a simulated data and a real life data have been presented for illustrative purposes.