cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Проблема бессмертия человека в традиционной индийской философии
Creators: name: Красильников Владимир Анатольевич
Publisher: name: Проблемы современной науки и образования
Year: 2019
Subjects: БЕССМЕРТИЕ
ЖИЗНЬ
СМЕРТЬ
ТРАДИЦИИ
ИНДИЯ
МИРОВОЗЗРЕНИЕ
КУЛЬТУРА
IMMORTALITY
LIFE
DEATH
TRADITION
INDIA
WORLDVIEW
CULTURE

description: В статье анализируется и актуализируется содержание взглядов традиционной философии Индии на вопросы бессмертия, жизни, смерти, посмертного существования и отношение к данным проблемам со стороны общества. Прослеживается тесная взаимосвязь между древнеиндийскими философскими учениями и современными культурными формами. Подчеркивается отличительная особенность отношения к данным вопросам в индийском обществе, влияния его философских учений на мировоззрение не только самих индийцев, но и на представителей других культурных цивилизаций, прежде всего, Запада. При этом длительное внешнее культурно-историческое воздействие на индийское общество не смогло повлиять на его устоявшиеся философские традиции.
Ex-dividend stock price behaviour and tax-induced clientele effect : a Canadian experience
Creators: name: Kwan, Wai Hung Jeff
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this paper is twofold: to examine the ex-dividend stock price behaviour and the tax-induced clientele effect in Canada. The study of the ex-dividend stock price behaviour is well documented in the U.S. The conclusive evidence is that stock price would fall on the ex-dividend day by an amount less than the dividend per share. So far, there is no such study on Canadian stocks and one of the aims of this thesis is to establish the same evidence in Canada. Attempts will also be made to test the hypothesis advanced by Elton and Gruber that ex-dividend stock price behaviour is determined by the tax structure of the economy. These attempts consist of the following investigations: (l) the difference;in ex-dividend stock price behaviour of Canadian companies on the Toronto Stock Exchange one year before and after the 1972 tax reform; (2) the difference in ex-dividend stock price behaviour of Canadian companies in Canada vis-a-vis those in the United States; and (3) the difference in ex-dividend stock price behaviour of U.S. stocks in Canada before and after the 1972 tax reform. The existence of the tax-induced clientele effect will be investigated on the basis of ex-dividend stock price behaviour in Canada as pioneered by the Elton and Gruber (1970) study.
Обзор технологий sdn и nfv
Creators: name: Короткова Ольга Арсеновна
Publisher: name: Вопросы науки и образования
Year: 2019
Subjects: SDN
NFV
СЕТИ
ПКС
ОБЛАЧНЫЕ ИНФРАСТРУКТУРЫ

description: В статье рассматривается текущая ситуация в мире по вопросу использования технологий программно-конфигурируемых сетей (SDN) и виртуализации сетевых функций (NFV).
Detecting fatigue in aluminum alloys based on internal friction measurement using an electromechanical impedance method
Creators: name: Tang, Jihua
name: Xie, Mingyu
name: Li, Faxin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Detecting mechanical fatigue of metallic components is always a challenge in industries. In this work, we proposed to monitor the low-cycle fatigue of a 6061 aluminum alloy based on internal friction (IF) measurement, which is realized by a quantitative electromechanical impedance (Q-EMI) method using a small piezoelectric wafer bonded on the specimen. Large strain amplitude (3.3*10^-3) was employed thus the fatigue life can always be below 10^5 cycles. It was found that except for the initial testing stage, the IF always increases steadily with the increasing fatigue cycles. Before the fatigue failure, the IF can reach 2.5 to 3.4 times of the initial value, which is thought to be caused by the micro-cracks forming and growing. In comparison, the resonance frequency of the specimen just drops less than 2% compared with the initial value. Finally, a general fatigue criterion based on IF measurement is suggested for all the metallic materials.
Pharmacokinetics of surfactant and substances, stimulating its synthesis in treatment of prematurely born children
Creators: name: Yusupalieva Dilnora Bakhodir Qizi
Publisher: name: Вопросы науки и образования
Year: 2019
Subjects: SURFACTANT
PREMATURE BABIES
TREATMENT
PREVENTION

description: Our research were conducted in the Repunlic perinatal centre. 42 preterm children including 27 boys and 15 girls were given surfactant. We divided babies by gestational period into 3 groups: extremetely preterm, very preterm and moderate to late preterm. Less than 28 weeks of gestation: 3 girls and 8 boys; 28 32 weeks of gestation: 10 girls and 15 boys; 32-37 weeks of gestation: 2 girls and 4 boys. Early rescue treatment should be administered in babies who have not received treatment before, but have evidence of RDS. Natural surfactant forms should be preferred.
Deformation and crustal rigidity of rotating neutron stars
Creators: name: Zdunik, J. L.
name: Bejger, M.
name: Haensel, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate parameters A and B of the Baym-Pines model of the hydro-elastic equilibrium of rotating neutron stars. Parameter A determines the energy increase of a non-rotating star due to a quadrupolar deformation of its shape. Parameter B determines residual quadrupolar deformation due to the crustal shear strain, in a neutron star that spun-down to a non-rotating state. The calculations of A are based on precise numerical 2-D calculations for rotating neutron stars with realistic equations of state (EOSs) of dense matter. An approximate, but quite precise, formula for B is used, which allows us to separate the contribution of the crust from the dependence on the stellar mass M and radius R. The elastic shear strain distribution within the crust is modeled following Cutler et al. (2003). A(M) and B(M) are calculated for 0.2Msun < M < 0.9M_max for seven EOSs of neutron star core, combined with several crust models. A standard formula based on the incompressible fluid model is shown to severely underestimate the value of A. For M<0.7Msun A(M) is nearly EOS independent and are given (within a few percent) by a universal formula A=3.87(M/Msun)^7/3 [10^53 erg]. We derive the scaling of B with respect to R and M, valid also for a thick crust. We show that B for accreted crust strongly depends on pycnonuclear fusions at rho>10^12 g/cm^3.
description: Accepted by A&A. 11 pages, 11 figures, 1 table. Title changed. Section on precession of RX J0720-3125 removed due to the withdrawal of observational evidence by Haberl et al. Section 6 substantially expanded. Minor addditions to Sections 2 and 10, top margin corrected
Position reconstruction for segmented detectors
Creators: name: Ebrahimi, A.
name: Feind, F.
name: Fretwurst, E.
name: Garutti, E.
name: Hajheidari, M.
name: Klanner, R.
name: Pitzl, D.
name: Schwandt, J.
name: Steinbrueck, G.
name: Zoi, I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The topic of the paper is the position reconstruction from signals of segmented detectors. With the help of a simple simulation, it is shown that the position reconstruction using the centre-of-gravity method is strongly biased, if the width of the charge (or e.g. light) distribution at the electrodes (or photo detectors) is less than the read-out pitch. A method is proposed which removes this bias for events with signals in two or more read-out channels and thereby improves the position resolution. The method also provides an estimate of the position-response function for every event. Examples are given for which its width as a function of the reconstructed position varies by as much as an order of magnitude. A fast Monte Carlo program is described which simulates the signals from a silicon pixel detector traversed by charged particles under different angles, and the results obtained with the proposed reconstruction method and with the centre-of-gravity method are compared. The simulation includes the local energy-loss fluctuations, the position-dependent electric field, the diffusion of the charge carriers, the electronics noise and charge thresholds for clustering. A comparison to test-beam-data is used to validate the simulation.
description: 20 pages, 17 figures, 1 Table
Extended N=1 super Yang-Mills theory
Creators: name: Ferrari, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We solve a generalization of ordinary N=1 super Yang-Mills theory with gauge group U(N) and an adjoint chiral multiplet X for which we turn on both an arbitrary tree-level superpotential term \int d^{2}θTr W(X) and an arbitrary field-dependent gauge kinetic term \int d^{2}θTr V(X)W^αW_α. When W=0, the model reduces to the extended Seiberg-Witten theory recently studied by Marshakov and Nekrasov. We use two different points of view: a ''macroscopic'' approach, using generalized anomaly equations, the Dijkgraaf-Vafa matrix model and the glueball superpotential; and the recently proposed ''microscopic'' approach, using Nekrasov's sum over colored partitions and the quantum microscopic superpotential. The two formalisms are based on completely different sets of variables and statistical ensembles. Yet it is shown that they yield precisely the same gauge theory correlators. This beautiful mathematical equivalence is a facet of the open/closed string duality. A full microscopic derivation of the non-perturbative N=1 gauge dynamics follows.
description: 47 pages, 3 figures, 2 appendices; v2: typos and references corrected, published in JHEP
Impact of COVID pandemic on attitude and prevalence of plant-based food products consumption in Serbia
Creators: name: Pavlović, Dragana Rados
name: Matejic, Jelena
name: Pavlovic, Ivan
name: Veljkovic, Milica
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2021

description: COVID pandemic influence on eating behavior and dietary habits with respect to various plant-based foods in Serbia were estimated by an anonymous questionnaire. Most examinees agree that fruits and vegetables contribute to strengthening immunity and that herbal medicines and natural products have beneficial effects on health. Around 55% of examinees consider their diet balanced, and 4% have started to drink herbal teas more often when the pandemic started. Garlic and ginger were the most frequently reported newly included plants in examinees’ diet. The attitudes toward plant-based food products are not strongly dependent on the education level. The age and previous dietary habits of examinees have great influence in the current frequency of consuming fruits, vegetables, herbal teas, spices, and dietary supplements. There was a significant shift toward greater use of herbal teas and dietary supplements, especially among the population that has already consumed them occasionally. Somewhat concerning is the fact that around half of respondents use dietary supplements without the recommendation of an expert. People with good dietary habits and the elderly were most prone to improving their diet. Roughly 15% of all respondents now have the same habits as before the pandemic, although they improved their diets temporarily at the beginning of COVID pandemic.
description: Journal of Applied Botany and Food Quality, Vol. 94 (2021): Journal of Applied Botany and Food Quality
title: Ανάπτυξη επικαλύψεων ανοξείδωτου χάλυβα Duplex σε υποστρώματα ωστενιτικού ανοξείδωτου χάλυβα μέσω αναγόμωσης με Laser Cladding
titleType: AlternativeTitle
Creators: name: Anagnostakis, Efangelos
Publisher: name: National Technological University of Athens
Year: 2025
Subjects: Ανοξείδωτοι Χάλυβες
Laser Cladding
Φυσική Μεταλλουργία

description: Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Επιστήμη και Τεχνολογία Υλικών”
Sequential Modeling with Multiple Attributes for Watchlist Recommendation in E-Commerce
Creators: name: Singer, Uriel
name: Roitman, Haggai
name: Eshel, Yotam
name: Nus, Alexander
name: Guy, Ido
name: Levi, Or
name: Hasson, Idan
name: Kiperwasser, Eliyahu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In e-commerce, the watchlist enables users to track items over time and has emerged as a primary feature, playing an important role in users' shopping journey. Watchlist items typically have multiple attributes whose values may change over time (e.g., price, quantity). Since many users accumulate dozens of items on their watchlist, and since shopping intents change over time, recommending the top watchlist items in a given context can be valuable. In this work, we study the watchlist functionality in e-commerce and introduce a novel watchlist recommendation task. Our goal is to prioritize which watchlist items the user should pay attention to next by predicting the next items the user will click. We cast this task as a specialized sequential recommendation task and discuss its characteristics. Our proposed recommendation model, Trans2D, is built on top of the Transformer architecture, where we further suggest a novel extended attention mechanism (Attention2D) that allows to learn complex item-item, attribute-attribute and item-attribute patterns from sequential-data with multiple item attributes. Using a large-scale watchlist dataset from eBay, we evaluate our proposed model, where we demonstrate its superiority compared to multiple state-of-the-art baselines, many of which are adapted for this task.
Genetic diversity and utilization of cultivated bitter gourd (Momordica charantia var. muricata) germplasm for varietal development
Creators: name: S. Priyadharshini
name: Kumanan, K.
name: Devi, A. Nithya
Publisher: name: Zenodo
Year: 2021
Subjects: Midhipagal, antioxidant enzyme, sodicity, chlorophyll content, proline content

description: Sodicity is a major abiotic stress reducing the yield of a wide variety of crops all over the world. In order to investigate the antioxidant enzymes activity of 30 mithipagal genotypes to the sodicity tolerance a study was taken up at Horticultural College and Research Institute for Women, Tiruchirappalli. The plants are exposed to severe salt stress, suffered from membrane destabilization and general nutrient imbalances that altered their physiology and defence mechanisms. The antioxidant enzyme system of plants plays an important role in the scavenging of Reactive Oxygen Species (ROS) that accumulate during stress and is the first line of defence to counter the deleterious stress effects. Proline content significantly increased in salt-tolerant mithipagal genotypes and the highest proline content was obtained from MCM-19 (Naduvakurichi local) under sodic soil condition. Catalase and peroxidase activities significantly decreased in salt-sensitive genotype whereas significantly increased in salt-tolerant genotypes. The salt-tolerant genotype MCM-19 (Naduvakurichi local) maintained higher levels of chlorophyll and proline contents as well as catalase and peroxidase activities under sodic soil condition followed by MCM-22 (Puthiyamputhur local) and MCM-21 (Arupukottai local), ROS, could be the underlying mechanism for salt tolerance. The longer term goal, however, will be to develop mithipagal varieties that combine high levels of sodicity tolerance, significant pharmacological effects and high yield.
Superstatistics of Brownian motion: A comparative study
Creators: name: Rodriguez, R. F.
name: Santamaria-Holek, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of temperature fluctuations of a gas of Brownian particles in local equilibrium with a nonequilibrium heat bath, are described using an approach consistent with Boltzmann-Gibbs statistics (BG). We use mesoscopic nonequilibrium thermodynamics (MNET) to derive a Fokker-Planck equation for the probability distribution in phase space including the local intensive variables fluctuations. We contract the description to obtain an effective probability distribution (EPD) from which the mass density, van Hove's function and the dynamic structure factor of the system are obtained. The main result is to show that in the long time limit the EPD exhibits a similar behavior as the superstatistics distribution of nonextensive statistical mechanics (NESM), therfore implying that the coarse-graining procedure is responsible for the so called nonextensive effects.
description: 14 pages,5 figures
A comprehensive search for the radio counterpart of GW190814 with the Australian Square Kilometre Array Pathfinder
Creators: name: Dobie, D.
name: Stewart, A.
name: Hotokezaka, K.
name: Murphy, Tara
name: Kaplan, D. L.
name: Buckley, D. A. H.
name: Cooke, J.
name: Ho, A. Y. Q.
name: Lenc, E.
name: Leung, J. K.
name: Gromadzki, M.
name: O'Brien, A.
name: Pintaldi, S.
name: Pritchard, J.
name: Wang, Y.
name: Wang, Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from a search for the radio counterpart to the possible neutron star-black hole merger GW190814 with the Australian Square Kilometre Array Pathfinder. We have carried out 10 epochs of observation spanning 2-655 days post-merger at a frequency of 944 MHz. Each observation covered 30 deg$^2$, equivalent to 87% of the event localisation. We conducted an untargeted search for radio transients in the field, as well as a targeted search for transients associated with known galaxies. We find one radio transient, ASKAP J005022.3-230349, but conclude that it is unlikely to be associated with the merger. We use our observations to place constraints on the inclination angle of the merger and the density of the surrounding environment by comparing our non-detection to model predictions for radio emission from compact binary coalescences. This survey is also the most comprehensive widefield search (in terms of sensitivity and both areal and temporal coverage) for radio transients to-date and we calculate the radio transient surface density at 944 MHz.
Exotic Quark Structure of Lambda(1405) in QCD Sum Rule
Creators: name: Nakamura, T.
name: Sugiyama, J.
name: Ishii, N.
name: Nishikawa, T.
name: Oka, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new analysis is performed in QCD sum rule for the lightest negative parity baryon Lambda (1405). Mixings of three-quark and five-quark Fock components are taken into account. Terms containing up to dimension 12 condensates are computed in the operator product expansion. It is found that the sum rule gives much stronger coupling of Lambda* to the five-quark operator so that the five-quark components occupy about 90% of Lambda (1405).
description: 14pages
Exact Green's functions and Bosonization of a Luttinger liquid coupled to impedances
Creators: name: Pham, K-V
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The exact Green's functions of a finite-size Luttinger Liquid (LL) connected to impedances are computed at zero and finite temperature. Bosonization for a LL with Impedance boundary conditions (IBC) is proven to hold. The LL with open boundary conditions (for both Neumann and Dirichlet cases) is explicitly recovered as a special limit when one has infinite impedances. Additionally when the impedances are equal to the characteristic impedance of the Luttinger liquid then the finite Luttinger liquid is shown to be effectively equivalent to an infinite Luttinger liquid.
THE EFFECTS OF USING A PROGRAM APPLYING SELF-REGULATION IN COMBINATION WITH TEACHER-S SOCIAL SUPPORT ON LEARNING BEHAVIORS OF UNDERACHIEVING PRIMARY STUDENTS
Creators: name: Phonraphee Thummaphan
name: Dusadee Yoelao
name: Siriparn Suwanmonkha
name: Winai Damsuwan
Publisher: name: Behavioral Science Research Institute,SWU.
Year: 2013
Subjects: learning behavior,self-regulation,social support,underachievement

description: 1, 8, INTERNATIONAL JOURNAL OF BEHAVIORAL SCIENCE
Atom Chip Diffraction of Bose-Einstein Condensates: The Role of Inter-Atomic Interactions
Creators: name: Judd, T. E.
name: Scott, R. G.
name: Fromhold, T. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We use supercomputer simulations to show that inter-atomic interactions can strongly affect the phase evolution of Bose-Einstein condensates that are diffracted from atom chips, thereby explaining recent experiments. Interactions broaden and depopulate non-central diffraction orders and so, counter-intuitively, they actually reduce the spatial width of the diffracted cloud. This means, more generally, that the experiments cannot be fully described by non-interacting theories and, consequently, interferometers that use many interacting atoms to enhance sensitivity require complex calibration. We identify device geometries required to approximate non-interacting behavior.
description: 5 pages, 4 figures
Recent advancement for breeding and maintenance of Parthenocarpic cucumber (Cucumis sativus L.)
Creators: name: Acharya Vishwas R
name: Akarsh Parihar
Publisher: name: Zenodo
Year: 2021
Subjects: Cucumber, Gynoecious, Parthenocarpy, Maintenance

description: Cucumber (Cucumis sativus L.) is one of the important and popular cucurbitaceous vegetable crops grown throughout the tropical and subtropical regions of the world. It belongs to the family Cucurbitaceae having a somatic chromosome number 2n = 2x = 14 with a genome size of 243.5 Mb (Huang et al., 2009). The usefulness of any genetic mechanism in a crop plant is always evaluated by its utilization in improving productivity. Among the different mechanisms, exploitation of the heterosis in vegetable crops, sex mechanism, more particularly gynoecy which has been universally adopted in cucurbits. Gynoecy, a condition where all the flowering nodes produce only pistillate flowers, can be exploited for improving yield and economizing hybrid production. India is being considered the home of cucumber possesses a vast range of genetic diversity and variability for both growth and fruit characters, but this diversity has not been fully utilized for its genetic improvement. The development of gynoecious varieties with parthenocarpic traits has become major challenge to the cucumber breeders to use it as a parent in F1 hybrid development for achieving higher yield, earliness, uniformity and suitability for protected cultivation. Therefore, there is an urgent need to develop gynoecious hybrids with parthenocarpic traits. Gynoecy coupled with parthenocarpic cucumber is a yield and quality-related parameter and a high value vegetable crop immensely suited for off season cultivation under protected condition because parthenocarpic varieties do not require pollination for fruit setting. In commercial production parthenocarpic cultivars are beneficial especially when pollination is difficult or heavily impacted by environmental conditions. Parthenocarpic varieties do not produce large number of seeds, even when pollinated. This attributes to high cost of seed production and makes the seeds of these variety more expensive than other varieties. In these case using of growth hormones we can manipulate the sex of the plant and maintain gynoecious parthenocarpic plant easily via spraying of GA3, silver nitrate, silver thiosulphate and other which may suppress ethylene production induces male flowers to do selfing to keep the genotype true to type.
Electron spin relaxation in X-valley of indirect bandgap AlxGa1-xAs: A new horizon for the realization of next generation spin-photonic devices
Creators: name: Mudi, Priyabrata
name: Khamari, Shailesh K.
name: Bhattacharya, Joydipto
name: Chakrabarti, Aparna
name: Sharma, Tarun K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: GaAs/AlGaAs quantum well (QW) system is utilized to investigate the electron spin relaxation in the satellite X-valley of indirect band gap Al0.63Ga0.37As epitaxial layers through polarization resolved photo-luminescence excitation spectroscopy. Solving the rate equations, steady state electronic distribution in various valleys of AlxGa1-xAs is estimated against continues photo carrier generation and an expression for the degree of circular polarization (DCP) of photoluminescence coming from the adjacent quantum well (QW) is derived. Amalgamating the experimental results with analytical expressions, the X-valley electron spin relaxation time (τ_S^X) is determined to be 2.7 +/- 0.1 ps at 10 K. To crosscheck its validity, theoretical calculations are performed based on Density Functional Theory within the framework of the projector augmented wave method, which support the experimental result quite well. Further, temperature dependence of τ_S^X is studied over 10-80 K range, which is explained by considering the intra-valley scattering of carriers in the X-valley of indirect band gap AlGaAs barrier layer. It is learnt that the strain induced modification of band structure lifts the degeneracy in X-valley, which dominates the electron spin relaxation beyond 50 K. Furthermore, the DCP spectra of hot electrons in indirect band gap AlGaAs layers is found to be significantly different compared to that of direct bandgap AlGaAs. It is understood as a consequence of linear k dependent Dresselhaus spin splitting and faster energy relaxation procedure in the X-valley. Findings of this work could provide a new horizon for the realization of next generation spin-photonic devices which are less sensitive to Joule heating.
description: 25 pages, 8 figures
Renforcer le processus de souscription en assurance collective : une approche par l'algorithme GS
Creators: name: SCHOUAME EBENEZER, Sylvain Benjamin Ferdinand
name: MBOMEYO, Alain Ludovic
Publisher: name: Zenodo
Year: 2023
Subjects: « assurance collective »; « algorithme » ; « appariement » ; « stabilité », « optimalité ».

description: Bien que l’assurance collective permette de mutualiser les risques pour un groupe d’agents, elle ne permet pas en toute circonstance d’éviter les risques de souscription. Cet article se propose de montrer comment renforcer le processus de souscription dans les contrats en assurance collective en introduisant des contraintes supplémentaires sur les assurés. Le mécanisme d’appariement de Gale et Shapley utilisé montre que, malgré la rigidité (la réduction du pouvoir d'appariement) de l’algorithme, lorsque le privilège est accordé aux assureurs, la taille du marché en assurance groupe est un atout de renforcement du processus de souscription au contrat collectif. La multiplication des contraintes sur les types d’agents conduit dans l’algorithme GS, à des appariements instables. Des conditions supplémentaires sont nécessaires pour retrouver la stabilité des appariements. Par ailleurs, dans le marché de l’assurance groupe, l’algorithme GS doit uniquement privilégier les assurés pour produire des appariements communément plus optimaux aux différentes parties.
Defect-free ZnSe nanowire and nano-needle nanostructures
Creators: name: Aichele, Thomas
name: Tribu, Adrien
name: Bougerol, Catherine
name: Kheng, Kuntheak
name: Andre, Regis
name: Tatarenko, Serge
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the growth of ZnSe nanowires and nano-needles using molecular beam epitaxy (MBE). Different growth regimes were found, depending on growth temperature and the Zn--Se flux ratio. By employing a combined MBE growth of nanowires and nano-needles without any post-processing of the sample, we achieved an efficient suppression of stacking fault defects. This is confirmed by transmission electron microscopy and by photoluminescence studies.
description: 4 pages, 4 figures
Regularization of Complex Langevin Method
Creators: name: Cai, Zhenning
name: Kuang, Yang
name: Tan, Hong Kiat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The complex Langevin method, a numerical method used to compute the ensemble average with a complex partition function, often suffers from runaway instability. We study the regularization of the complex Langevin method via augmenting the action with a stabilization term. Since the regularization introduces biases to the numerical result, two approaches, named 2R and 3R methods, are introduced to recover the unbiased result. The 2R method supplements the regularization with regression to estimate the unregularized ensemble average, and the 3R method reduces the computational cost by coupling the regularization with a reweighting strategy before regression. Both methods can be generalized to the SU(n) theory and are assessed from several perspectives. Several numerical experiments in the lattice field theory are carried out to show the effectiveness of our approaches.
Measurement of neutrino velocity with the MINOS detectors and NuMI neutrino beam
Creators: name: MINOS Collaboration
name: Adamson, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The velocity of a ~3 GeV neutrino beam is measured by comparing detection times at the Near and Far detectors of the MINOS experiment, separated by 734 km. A total of 473 Far Detector neutrino events was used to measure (v-c)/c = 5.1 +/- 2.9 x 10^-5 (at 68% C.L.). By correlating the measured energies of 258 charged-current neutrino events to their arrival times at the Far Detector, a limit is imposed on the neutrino mass of m_nu < 50 MeV/c^2 (99% C.L.).
description: 6 pages, 3 figures, to be submitted to PRD. Added discussion and expanded text
Eikonal but not: a complementary view of high energy evolution
Creators: name: Altinoluk, Tolga
name: Kovner, Alex
name: Peressutti, Javier
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The high energy evolution equations that describe the evolution of hadronic amplitudes with energy are derived assuming eikonal interaction of the evolved hadronic wave function with the target. In this note we remark that this derivation allows a different interpretation, whereby the hadronic wave function is not evolved, but instead the evolution acts on the S - matrix operator. In this approach, analogous to the Heisenberg picture of Quantum mechanics, the scattering is not eikonal and additional boost provides for radiation of more gluons in the final state.
description: 5 pages
IN VITRO REGENERATION PROTOCOLS FROM IMMATURE MALE FLOWER BUDS OF BANANA CV. KARPURA CHAKKARAKELI (AAB) AND ASSESSMENT OF GENETIC FIDELITY WITH SSR & ISSR MARKERS
Creators: name: M. Viswanath B. V. K. Bhagavan K. Ravindra Kumar P. Subbaramamma M. GirijaRani
Publisher: name: Zenodo
Year: 2021
Subjects: keywords: MALE FLOWER BUDS, ISSR & SSR MARKERS

description: An efficient in vitro propagation protocol has been developed for the first time on direct differentiation of shoot buds from immature male flower buds of banana cv. Karpura Chakkarakeli (AAB). MS media supplemented with 1.0 mgL-1 TDZ + 0.5 mgL-1 IAA + 2 mgL-1 CH was found optimal for per -cent cauliflower-like bodies (CLBs) formation (75.04%), maximum number of CLBs (15.01) explant-1 and minimum number of days (43.54d) taken for CLBs induction. The highest per cent (75.37%) and maximum number (12.78) of shoots proliferated explant-1 within 120 days after culture initiation. The regenerated plantlets rooted better in half MS media supplemented with 0.5 mgL-1 IBA and hardened with 97% survival rate. SSR & ISSR markers were employed to assess the genetic stability of in vitro regenerated and multiplied plantlets of banana cv. Karpura Chakkarakeli (AAB) recorded 100% monomorphic across all the regenerated plants with the mother plant.
Vortices near the Mott phase of a trapped Bose-Einstein condensate
Creators: name: Goldbaum, Daniel S.
name: Mueller, Erich J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a theoretical study of vortices within a harmonically trapped Bose-Einstein condensate in a rotating optical lattice. We find that proximity to the Mott insulating state dramatically effects the vortex structures. To illustrate we give examples in which the vortices: (i) all sit at a fixed distance from the center of the trap, forming a ring, or (ii) coalesce at the center of the trap, forming a giant vortex. We model time-of-flight expansion to demonstrate the experimental observability of our predictions.
description: Material from arXiv:0807.3609 formatted for journal submission
Half-Space Albedo Problem for Linear-Triplet Anisotropic Scattering with the HN and SVD Methods
Creators: name: Türeci, R. G.
name: Sahni, D. C.
name: Aydın, A.
name: Bozkır, A. Z.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Pharmacology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: We examine the effect of linear-triplet anisotropic scattering on the solution of transport problems. We consider the albedo problem for a semi-infinite slab with a non-negative scattering kernel that is a linear combination of “linear” and “triplet” scattering. We use two different methods, both of which are based on Case method of singular eigenfunctions, namely the HN method and the SVD method. Case’s eigenfunctions and their orthogonality relations are derived and are used to solve the half-space albedo problem. The results of two methods are in agreement with each other and show that the triplet scattering has only a marginal effect on the solution of the transport problem while the linear scattering has a dominant role. Surprisingly this is true even when the strength of the linear scattering is small. We also report an improvement of the SVD method that allows us to refine the mesh as we please.
Effect of managerial competencies on Small and Medium Enterprise (SME) performance
Creators: name: Fomunyam, Dr. Kehdinga George
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2021
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Performance of SMEs have been of concern to researchers all over the world. SMEs in Africa are not performing as they should. Their contribution to gross domestic products is relatively low when compared to other countries in the same stage of development. Their employment generation is also low when compared to other countries. Hence, researchers have in recent times studied variables that could positively influence SME performance. For this paper, managerial competence was studied and its influence on SME performance by reviewing critical empirical studies. From the review of literature, this paper concludes that managerial competencies enhance SME performance. The study recommends that managers should always exhibit competencies such as technical skills, generic skills and conceptual skills to ensure high SME performance. There is a need to intensify more effort on managerial competence among those holding leadership positions. This cascades down to all within the organization. Also, capacity building opportunities should be given to all workers regardless of cadre as they lead different aspects of the operation of the organization.
A practical model of convective dynamics for stellar evolution calculations
Creators: name: Miller, Neil
name: Garaud, Pascale
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Turbulent motions in the interior of a star play an important role in its evolution, since they transport chemical species, thermal energy and angular momentum. Our overall goal is to construct a practical turbulent closure model for convective transport that can be used in a multi-dimensional stellar evolution calculation including the effects of rotation, shear and magnetic fields. Here, we focus on the first step of this task: capturing the well-known transition from radiative heat transport to turbulent convection with and without rotation, as well as the asymptotic relationship between turbulent and radiative transport in the limit of large Rayleigh number. We extend the closure model developed by Ogilvie (2003) and Garaud and Ogilvie (2005) to include heat transport and compare it with experimental results of Rayleigh-Benard convection.
description: Conference proceeding for poster at conference "Unsolved problems in Stellar Physics"
A semiconductor exciton memory cell based on a single quantum nanostructure
Creators: name: Krenner, H. J.
name: Pryor, C. E.
name: He, J.
name: Petroff, P. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate storage of excitons in a single nanostructure, a self-assembled Quantum Post. After generation electron and holes forming the exciton are separated by an electric field towards opposite ends of the Quantum Post inhibiting their radiative recombination. After a defined time such spatially indirect excitons are reconverted to optically active direct excitons by switching the electric field. The emitted light of the stored exciton is detected in the limit of a single nanostructure and storage times exceeding 30 msec are demonstrated. We identify a slow tunneling of the electron out of the Quantum Post as the dominant loss mechanism by comparing the field dependent temporal decay of the storage signal to models for this process and radiative losses.
description: 23 pages
The Peculiar Phase Structure of Random Graph Bisection
Creators: name: Percus, Allon G.
name: Istrate, Gabriel
name: Goncalves, Bruno
name: Sumi, Robert Z.
name: Boettcher, Stefan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The mincut graph bisection problem involves partitioning the n vertices of a graph into disjoint subsets, each containing exactly n/2 vertices, while minimizing the number of "cut" edges with an endpoint in each subset. When considered over sparse random graphs, the phase structure of the graph bisection problem displays certain familiar properties, but also some surprises. It is known that when the mean degree is below the critical value of 2 log 2, the cutsize is zero with high probability. We study how the minimum cutsize increases with mean degree above this critical threshold, finding a new analytical upper bound that improves considerably upon previous bounds. Combined with recent results on expander graphs, our bound suggests the unusual scenario that random graph bisection is replica symmetric up to and beyond the critical threshold, with a replica symmetry breaking transition possibly taking place above the threshold. An intriguing algorithmic consequence is that although the problem is NP-hard, we can find near-optimal cutsizes (whose ratio to the optimal value approaches 1 asymptotically) in polynomial time for typical instances near the phase transition.
description: substantially revised section 2, changed figures 3, 4 and 6, made minor stylistic changes and added references
Fast rotation of neutron stars and equation of state of dense matter
Creators: name: Haensel, P.
name: Zdunik, J. L.
name: Bejger, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Fast rotation of compact stars (at submillisecond period) and, in particular, their stability, are sensitive to the equation of state (EOS) of dense matter. Recent observations of XTE J1739-285 suggest that it contains a neutron star rotating at 1122 Hz (Kaaret et al. 2007). At such rotational frequency the effects of rotation on star's structure are significant. We study the interplay of fast rotation, EOS and gravitational mass of a submillisecond pulsar. We discuss the EOS dependence of spin-up to a submillisecond period, via mass accretion from a disk in a low-mass X-ray binary.
description: 7 pages, 7 figures, proceedings of the "Jean-Pierre Lasota, X-ray binaries, accretion disks and compact stars" conference, edited by M. Abramowicz and O. Straub, New Astronomy Reviews (Elsevier 2008), in press
Smoothable del Pezzo surfaces with quotient singularities
Creators: name: Hacking, Paul
name: Prokhorov, Yuri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10, 14E30

description: We give a complete classification of del Pezzo surfaces with quotient singularities and Picard rank 1 which admit a Q-Gorenstein smoothing. There are 14 infinite families of toric examples. The surfaces in each family correspond to solutions of a Markov-type equation. The remaining surfaces are obtained as deformations of the toric surfaces or belong to a finite list of sporadic surfaces.
description: 36 pages. v2: corrected attribution of Prop. 2.7, added reference
Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC
Creators: name: Han, Tao
name: Mukhopadhyaya, Biswarup
name: Si, Zongguo
name: Wang, Kai
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the pair production of doubly charged Higgs bosons at the Large Hadron Collider (LHC), assuming the doubly charged Higgs to be part of an SU(2)_L triplet which generates Majorana masses for left-handed neutrinos. Such pair-production has the advantage that it is not constrained by the triplet vacuum expectation value, which tends to make the single production rate rather small. We point out that, in addition to the Drell-Yan (DY) production mechanism, two-photon processes also contribute to H++H++ production at a level comparable to the QCD corrections to the DY channel. Decays of the doubly charged Higgs into both the l+l+ and W+W+ modes are studied in detail to optimize the signal observation over the backgrounds. Doubly charged scalars should be observable at the LHC with 300 fb^-1 integrated luminosity in the ll channel upto the mass range of 1 TeV even with a branching fraction of about 60 %, and in the WW channel upto a mass of 700 GeV. Such a doubly charged Higgs, if it is a member of a triplet generating neutrino masses,cannot be long-lived on the scale of collider detectors although it might lead to a displaced secondary vertex during its decay if it is lighter than about 250 GeV.
description: revtex4, 23 pages, 14 figures, version published in Physical Review D
On SYZ mirror transformations
Creators: name: Chan, Kwokwai
name: Leung, Naichung Conan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symplectic Geometry (math.SG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J32, 53D45, 53D12, 14J45

description: In this expository paper, we discuss how Fourier-Mukai-type transformations, which we call SYZ mirror transformations, can be applied to provide a geometric understanding of the mirror symmetry phenomena for semi-flat Calabi-Yau manifolds and toric Fano manifolds. We also speculate the possible applications of these transformations to other more general settings.
description: v2: 22 pages; revised according to the updated version of the preprint arXiv:0801.2830; to appear in Advanced Studies in Pure Mathematics, "New Developments in Algebraic Geometry, Integrable Systems and Mirror Symmetry"
Spiky Strings, Giant Magnons and beta-deformations
Creators: name: Bobev, N. P.
name: Rashkov, R. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study rigid string solutions rotating on the S^3 subspace of the beta-deformed AdS_5xS^5 background found by Lunin and Maldacena. For particular values of the parameters of the solutions we find the known giant magnon and single spike strings. We present a single spike string solution on the deformed S^3 and find how the deformation affects the dispersion relation. The possible relation of this string solution to spin chains and the connection of the solutions on the undeformed S^3 to the sine-Gordon model are briefly discussed.
description: 20 pages, 2 figures; v2: typos corrected, references added
Radial mixing and the transition between the thick and thin Galactic discs
Creators: name: Haywood, Misha
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The analysis of the kinematics of solar neighbourhood stars shows that the low and high metallicity tails of the thin disc are populated by objects which orbital properties suggest an origin in the outer and inner galactic disc, respectively. Signatures of radial migration are identified in various recent samples, and are shown to be responsible for the high metallicity dispersion in the age-metallicity distribution. Most importantly, it is shown that the population of low metallicity wanderers of the thin disc (-0.7
description: 11 pages, 12 figures, accepted in MNRAS
Accelerated production of clonally-true banana propagules via in vitro regeneration system
Creators: name: Tsama, Subrahmanyeswari
name: Bhattacharyya, Somnath
name: Gantait, Saikat
Publisher: name: Zenodo
Year: 2021
Subjects: Acclimatization; Cytokinin; Direct regeneration; Genetic fidelity; Molecular marker

description: Banana (Musa spp.), one of the most important economical fruit crops, belongs family Musaceae. It is a major staple food crop that globally occupied the fourth position next to rice, wheat, and maize and in addition, it serves as a cash crop in form of the cornerstone to a number of country’s economy. An accelerated, innovative and efficient in vitro single-step concurrent multiple shoot and root development protocol was successfully developed in Musa acuminata cv. Grand Nain, popularly called as “Chiquita banana” which has eminent potential for export market. Shoot tip explants were inoculated in Murashige and Skoog (MS) medium individually fortified with 0.5—1.5 mg/l of 6-benzyladenine (BA), kinetin (KIN), meta-Topolin (mT), thidiazuron (TDZ) and zeatin. The maximum number of shoots was obtained in 0.5 mg/l TDZ and the same medium resulted in substantially higher number of true roots as well. The minimum time to fresh shoot initiation and maximum shoot elongation was found in MS medium supplemented with 1.5 mg/l KIN. However, earliest root induction, multiple root formation and elongation was observed in MS medium with 0.5 mg/l KIN. By and large, TDZ (0.5 mg/l) was found to be optimum medium in terms of accelerated simultaneous shooting and rooting. During acclimatization, these plantlets survived and proliferated best in cocopeat in contrast to other substrates (such as sand, soil—sand, vermicompost—soil, perlite and vermiculite). Eventually, the clonal fidelity assessment of the in vitro regenerants using ISSR primers produced monomorphic bands and thus no genetic variation was detected within in vitro regenerants as well as with their mother plant.