cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis and numerical solution of a non-standard non-linear
integro-differential boundary value problem
Creators: name: Basile, Mariateresa
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: The aim of this thesis is the analytical study and the development of a numerical method to
solve a non-linear, integro-differential boundary value problem on the half line which is representative of a class of non-standard integral equations where the derivatives of the unknown function are multiplied by an integral term depending on the unknown itself. The problems of this class are related to some real phenomena like plasmas kinetics and population dynamics.
This equation is defined on the half line, and its non-standard nature makes the analytical and numerical study rather complicated.
As a matter of fact, the knowledge about the existence, uniqueness and other properties of
the solution is missing and the numerical methods are still undeveloped.
Hence, the first part of this thesis concerns with the theoretical analysis of the integro-differential problem, which provides useful informations about the existence and other qualitative properties of
the solution itself and represents an essential preparation for a numerical resolution of the
problem itself.
The second part of this thesis concerns with the development of the numerical method to
solve the integro-differential problem  and the study of the convergence of the method
itself.
Saperda calcarata Say 1824
Creators: name: Webster, Reginald
name: McCoqrquodale, David
name: Majka, Christopher
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Saperda
Saperda calcarata

description: Saperda calcarata Say, 1824 New Brunswick: Albert Co., Mary’s Point, 5.VIII.2003, D.S. Christie, (1, CGMC). Gloucester Co., St. Simon, 10.VII.1980, G. Gallien (1, UMNB); St Simon, 18.VIII.1983, P. Mallet (1, UMNB). Kent Co., Cocagne Road, 25.VI.1942, 29.VI.1942, FIS, poplar (2, AFC; Mineral, 19.VII.1949, H Bennett, det. W.J. Brown (1, NSAC); Kouchibouguac Park, 25.VII.1994, Danielle Richard (1, UMNB). Northumberland Co., Sillikers, 29.VII.2008, Nelson Poirier. Westmorland Co., Moncton, 15.VII.1981, Leo G. (1, UMNB); Moncton, 10.IX.1999, E Rivard (1, UMNB). York Co. , Charters Settlement, 45.8395°N, 66.7391°W, 9.VII.1993, 14. Viii. 1993, 4.VIII.1996, 7.VIII.1997, 29.VII.2000, 17.VII.2004, 27.VI.2006, R.P. Webster, mixed forest, M. V. light (7, NBM, RWC); Fredericton, 16.VII.1990, R.P. Webster, (1, RWC); Fredericton, July 1927, L.J. Simpson, AFC; Fredericton, 23.VIII.1953, G.W. Barter, Populus tremuloides, 67C21 (1, AFC); Fredericton, August 1954. C.C. Smith (1, AFC); Fredericton, 8.VIII.1955, G.W. Barter, Populus tremuloides (2, AFC); Nashwaaksis, 23.VII.1959, FIS, light trap, 59-624, 59C33 (1, AFC).
description: Published as part of Webster, Reginald, McCoqrquodale, David & Majka, Christopher, 2009, New records of Cerambycidae (Coleoptera) for New Brunswick, Nova Scotia, and Prince Edward Island, Canada, pp. 285-308 in ZooKeys 22 (22) on page 301, DOI: 10.3897/zookeys.22.122, http://zenodo.org/record/576540
Solar off-limb line widths: Alfven waves, ion-cyclotron waves, and preferential heating
Creators: name: Dolla, L.
name: Solomon, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Alfven waves and ion-cyclotron absorption of high-frequency waves are frequently brought into models devoted to coronal heating and fast solar-wind acceleration. Signatures of ion-cyclotron resonance have already been observed in situ in the solar wind (HELIOS spacecrafts) and, recently, in the upper corona (UVCS/SOHO remote-sensing results). We propose a method to constrain both the Alfven wave amplitude and the preferential heating induced by ion-cyclotron resonance, above a partially developed polar coronal hole observed with the SUMER/SOHO spectrometer. The instrumental stray light contribution is first substracted from the spectra. By supposing that the non-thermal velocity is related to the Alfven wave amplitude, it is constrained through a density diagnostic and the gradient of the width of the Mg X 625 A line. The temperatures of several coronal ions, as functions of the distance above the limb, are then determined by substracting the non-thermal component to the observed line widths. The effect of stray light explains the apparent decrease with height in the width of several spectral lines, this decrease usually starting about 0.1-0.2 Rs above the limb. This result rules out any direct evidence of damping of the Alfven waves, often suggested by other authors. We also find that the ions with the smallest charge-to-mass ratios are the hottest ones at a fixed altitude and that they are subject to a stronger heating, as compared to the others, between 57" and 102" above the limb. This constitutes a serious clue to ion-cyclotron preferential heating.
description: 15 pages, 12 figures, 3 tables
Relativistic fluid modelling of gamma-ray binaries. II. Application to LS 5039
Creators: name: Huber, David
name: Kissmann, Ralf
name: Reimer, Olaf
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context. We have presented a numerical model for the non-thermal emission of gamma-ray binaries in a pulsar-wind driven scenario. Aims. We apply this model to one of the best-observed gamma-ray binaries, the LS 5039 system. Methods. The model involves a joint simulation of the pulsar- and stellar-wind interaction and the transport of electronic pairs from the pulsar wind accelerated at the emerging shock structure. We compute the synchrotron and inverse Compton emission in a post-processing step, while consistently accounting for relativistic beaming and $γγ$-absorption in the stellar radiation field. Results. The stellar- and pulsar-wind interaction leads to the formation of an extended, asymmetric wind collision region developing strong shocks, turbulent mixing, and secondary shocks in the turbulent flow. Both the structure of the collision region and the resulting particle distributions show significant orbital variation. Next to the acceleration of particles at the bow-like pulsar wind and Coriolis shock the model naturally accounts for the reacceleration of particles at secondary shocks contributing to the emission at very-high-energy (VHE) gamma-rays. The model successfully reproduces the main spectral features of LS 5039. While the predicted lightcurves in the high-energy and VHE gamma-ray band are in good agreement with observations, our model still does not reproduce the X-ray to low-energy gamma-ray modulation, which we attribute to the employed magnetic field model. Conclusions. We successfully model the main spectral features of the observed multiband, non-thermal emission of LS 5039 and thus further substantiates a wind-driven interpretation of gamma-ray binaries. Open issues relate to the synchrotron modulation, which might be addressed through a magnetohydrodynamic extension of our model.
description: 14 pages, 13 figures. Accepted by A&A
A study of children's behaviour in family groups in the Graham Amazon Gallery, Vancouver Public Aquarium
Creators: name: Elderton, Victor James
Publisher: name: University of British Columbia
Year: 2010

description: Purpose: This study was undertaken in order to document children's behaviour in family groups as they toured different exhibit sections of the Graham Amazon Gallery at the Vancouver Public Aquarium. Methods: This was a naturalistic study, based upon non-intrusive observation of child behaviours in family groups. Two methods of data collection were used. These were: 1) Time interval observations of designated study children as they toured the Gallery with their attending adults; 2) Semantic differential administered to adults to assess the perceived "information load" of different exhibit sections of the Gallery. Findings: 1) That adults perceived that different exhibit sections had different "Information loads." Exhibits that were similar to terria were perceived to be different from exhibits similar to a walk through conservatory. 2) That children showed more behaviours in exhibit sections with low "information loads." 3) That children showed greater variety of behaviours in exhibit sections with low "Information loads." 4) That female children interacted with adults more often than male children in exhibit sections with low "Information load." 5) That male children interacted with adults more often than female children in exhibit sections with high "information load."
Multijet production at low $x_{\rm Bj}$ in deep inelastic scattering at HERA
Creators: name: ZEUS Collaboration
name: Chekanov, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Inclusive dijet and trijet production in deep inelastic $ep$ scattering has been measured for $10
description: 27 pages, 12 figures, 5 tables, submitted to Nucl. Phys. B
Attentional Mechanism for Sensory-motor Coordination in Behavior-based Robotic Systems
Creators: name: Staffa, Mariacarla
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: This thesis focuses on the problem of efficiently allocating resources for enhancing the performance of an autonomous robotic agent. Such an agent is expected to operate in complex dynamic environments by continuously monitoring its internal states and the external events. These requirements give raise to countless problems that have populated research in the autonomous robotics community in the last two decades.
Among these issues, one of the most relevant is to coordinate different low and high-level behaviors, giving them, from time to time, different priority values both for resource allocation and for action selection processes. The main problem in achieving this requirement is that the number and
complexity of the stimuli received by each behavior may be quite high and also the effects on the emerging activity may be very hard to foresee.
It is clear that it is not possible for the robotic control system to process all the incoming information, especially for real-time applications.
Thus, it becomes necessary to build mechanisms able to guide this sensory input selection process and to choose the best action to perform, assuring an efficient use of the robot limited sensorial and cognitive resources. For this purpose, attentional mechanisms, balancing sensors elaboration and actions execution, can be very useful since they play two main roles: they focus the attention on salient regions of the space and they distribute resources and activities in time. As a result of the application of these mechanisms within the robotic control system for sensory-motor coordination, the robot behavior is improved: the robot becomes able to react faster to task-related or safety-critical stimuli and to opportunely split resources among concurrent behaviors. Attentional mechanisms applied to autonomous robotic systems have already been proposed, but mainly for vision-based robotics; conversely, the contribution introduced by the present thesis is the use of an artificial attentional mechanism suitable both for optimizing the use of resources and for execution monitoring and control.
Free carrier induced ferroelectricity in layered perovskites
Creators: name: Li, Shutong
name: Birol, Turan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Doping ferroelectrics with carriers is often detrimental to polarization. This makes the design and discovery of metals that undergo a ferroelectric-like transition challenging. In this letter, we show from first principles that the oxygen octahedral rotations in perovskites are often enhanced by electron doping, and this can be used as a means to strengthen the structural polarization in certain hybrid-improper ferroelectrics -- compounds in which the polarization is not stabilized by the long range Coulomb interactions but is instead induced by a trilinear coupling to octahedral rotations. We use this design strategy to predict a cation ordered Ruddlesden-Popper compound that can be driven into a metallic ferroelectric-like phase via electrolyte gating.
A Two-Factor Binomial Model for Pricing Hybrid Securities: A Simplified Approach
Creators: name: De Simone, Antonio
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: This thesis develops a numerical procedure for pricing financial contracts whose contingent claims are exposed to two sources of risk: the stock price and the short interest rate. Particular emphasis here is placed on hybrid financial securities, i.e. on a group of financial contracts that combine the elements of the two broader groups of securities, debt and equity. Moreover, we focus on "American style" financial products, i.e. financial contracts (such as American options or convertible bonds) giving the owner a right to be exercised within a certain date. In particular, the proposed pricing framework assumes that the stock price  dynamics is described by the Cox, Ross Rubinstein (CRR, 1979) binomial model under a stochastic risk free rate, whose dynamics evolves over time accordingly to the Black, Derman and Toy (BDT, 1990) one-factor model. We also show how to apply the numerical procedure to compute the price of three financial contracts with increasing complexity: a vanilla (European and American) call option, a callable convertible bond and a participating policy, i.e. an insurance contract where the benefit for the policyholder is partly fixed and partly variable, depending on the profit of the insurance company. We also discuss some issues related to the implementation and calibration of such a two factors numerical procedure and in particular how the dynamics of each risk factor can calibrated to the observed market prices. Finally, in order to assess the validity of the model, its advatages and drawbacks, we conduct an empirical analysis where, in particular, the role of the correlation between stock price and interest rate is emphasized. We study different possible ways for calibrating the correlation parameter, including implied correlation and multivariate GARCH forecast.
Control of heart rate during diving in ducks
Creators: name: Furilla, Robert Alan
Publisher: name: University of British Columbia
Year: 2010

description: Forced submergence of redhead ducks (Aythya americana) caused heart rate to fall from 100 ± 3 beats⋅min⁻ ¹ (mean ± s.e.m., N = 12) to a stable rate of 35 ± 4 beats⋅min⁻ ¹ (N = 12) within 5 seconds after submergence. Bradycardia was unaffected by breathing oxygen before the dive or by denervation of the baroreceptors, but was virtually eliminated by local anaesthesia of the narial region. When freely diving on a man-made pond, heart rate of redhead ducks and lesser scaup (A. affinis) two seconds after submergence was positively correlated with the pre-dive rate (r² = 0.71). Breathing oxygen before the dive and denervation of baroreceptors had little effect on this relationship. Chasing to induce submergence caused a slight enhancement of bradycardia, heart rate during the dive being about 10% lower than after a voluntary dive. Local anaesthesia of the narial region inhibited voluntary diving, but heart rates in chase-induced dives after nasal blockade were significantly higher (10-30%) than those obtained from untreated ducks in chase-induced dives. Dive heart rate, at 2-5 seconds submergence, was linearly related to the logarithm of the pre-dive rate for all voluntary and forced dives as well as dabbles. Even the heart rate which occurred 2-5 seconds after being trapped under water as a function of the rate immediately before trapping fitted this relationship. The function was described by the equation Y = -451 + 246 LOG X, where Y = dive (or trapped) and X = pre-dive (or pre-trap) heart rate (r² = 0.98). The relationship was unaltered by β-blockade with propranolol. Data from stimulation of the cut distal ends of vagal and cardiac sympathetic nerves suggest that a similar increase in vagal activity occurs on submergence in all of these dives. The first cardiac interval in voluntary dives represents a lower heart rate, indicating a higher level of vagal activity. When dabbling ducks (Anas platyrhynchos) dabble, heart rate at two seconds submergence is little changed from the pre-dabble rate. When these birds dive, however, heart rate at two seconds submergence is about 250 beats⋅min⁻ ¹, regardless of the pre-dive rate. Bilateral denervation of arterial baroreceptors significantly altered the dive:pre-dive relationship . These results have shown that nasal receptors are responsible for bradycardia in diving ducks when forcibly submerged, but that nasal receptors contribute little to the change in heart rate when ducks dive voluntarily. The results also suggest that there is a psychogenic modulation of the heart rate in voluntary dives which influences the pre-dive rather than the dive heart rate. Finally, dabbling ducks differ from diving ducks in their response to forced and voluntary diving. Chemoreceptors are responsible for the majority of the response in forced dives, and baroreceptors provide primary control in voluntary dives.
Anatomy of collembola Mesaphorura sylvatica (Hexapoda: Collembola: Tullbergiidae)
Creators: name: Panina Irina
name: Potapov Mikhail
name: Polilov Alexey
Publisher: name: Zenodo
Year: 2019
Subjects: miniaturization, anatomy, Collembola

description: Anatomy of collembola Mesaphorura sylvatica (Hexapoda: Collembola: Tullbergiidae), 3D-reconstruction in two popular formats.
CARDIOVASCULAR DISEASE DETECTION USING MACHINE LEARNING AND RISK CLASSIFICATION BASED ON FUZZY MODEL
Creators: name: GYAN PRASAD PAUDEL
name: PARBATI KUMARI UPADHYAY
Publisher: name: Zenodo
Year: 2023
Subjects: Cardiovascular Disease (CVD), Principal Component Analysis (PCA), Disease Classification, Fuzzy Model, Machine Learning (ML)

description: Abstract

The global prevalence of heart disease indicates a major public health issue. It causes shortness of breath, weakness, and swollen ankles. Early heart disease diagnosis is difficult with current approaches. Hence, a better heart disease detection tool is needed. Treatment requires more than just diagnosis. Risk classification is critical for accurate diagnosis and treatment. In this analysis, a novel cardiovascular disease (CVD) detection paradigm using machine learning (ML) and risk classification based on a weighted fuzzy system is proposed. The system is developed based on ML algorithms such as artificial neural network (ANN) and Long Short-Term Memory (LSTM) and uses standard feature selection techniques knowns as Principal Component Analysis (PCA). Furthermore, the cross-validation method has been used for learning the best practices of model assessment and for hyperparameter tuning. The accuracy-based performance measuring metrics are used for the assessment of the performances of the classifiers. Finally, the outcomes revealed that the proposed model achieved an accuracy of 94.01% which is higher than another conventional model developed in this domain. Additionally, the proposed system can easily be implemented in healthcare for the identification of heart disease.
Saperda candida Fabricius 1787
Creators: name: Webster, Reginald
name: McCoqrquodale, David
name: Majka, Christopher
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Saperda
Saperda candida

description: Saperda candida Fabricius, 1787 New Brunswick: Albert Co., Mary’s Point, 21.VII.2003, D.S. Christie, coastal spruce forest (1, CGMC). Charlotte Co., St. Stephen, 30.VI.1930, R. E. Balch (1, AFC); Deer Island, 25.VII.1998, 27.VII.1998, light trap, det. G. Smith (2, AFC). Gloucester Co., Bathurst, Daly Point Reserve, 5.VIII.1998, R. P. Webster, (1, RWC); Tracadie, 28. VI.1989, M. Porelle (1, UMNB). Restigouche Co., Keswick, 26.VII.1976, balsam fir, 76-2-3989-04 (1, AFC). York Co., Charters Settlement, 45.8395°N, 66.7391°W, 27.VII. 2001, 6.VIII.2001, R. P. Webster, mixed forest, M. V. light (2, RWC); Fredericton, 2.VII.1942, C.C. Smith (1, AFC); Fredericton, 17.VII.1970, light trap (1, AFC).
description: Published as part of Webster, Reginald, McCoqrquodale, David & Majka, Christopher, 2009, New records of Cerambycidae (Coleoptera) for New Brunswick, Nova Scotia, and Prince Edward Island, Canada, pp. 285-308 in ZooKeys 22 (22) on pages 301-302, DOI: 10.3897/zookeys.22.122, http://zenodo.org/record/576540
THE EFFECT OF STOCK PRICES ON INVESTING DECISIONS IN BANDARMOLOGY MODERATION IN TERMS OF STUDENT PERCEPTIONS
Creators: name: ZAIN FUADI MUHAMMAD ROZIQIFATH
name: EKA HENDI ANDRIANSYAH
name: M. AFLAH IQBAL RAMADHAN
name: DEVY AYU NINGTYAS
Publisher: name: Zenodo
Year: 2023
Subjects: Student perception, Stock price, Bandarmology, Investment Decision.

description: Abstract

The capital market becomes an effective means for a country's economic development. Because with the progress of the world, the Indonesian capital market will increase the amount of capital in the country and the development of the capital market also plays an important role in encouraging the country's economy. Currently, the number of investors in Indonesia continues to increase every year, most recently at the end of 2022, the number of investors in Indonesia has reached 10.31 million investors. Where the majority of investors in the capital market are dominated by young people with an age range under 30 years, and with an educational profile are high school graduates. This is a positive signal, considering that with these demographics, the capital market in Indonesia in the future will still have the next generation. However, in reality the growing investment in Indonesia is often dominated by price manipulation practices, such as fried stocks. So that in this study descriptive quantitative research methods were used. Where this study aims to determine the perception of students who will become potential investors in understanding related to Bandarmology influencing decision making in investing. The sample collection technique in this study uses proportionate random sampling in adolescents with undergraduate education at the Faculty of Economics, who have invested in East Java.
Valutazione degli effetti del Biossido di Cloro sulla disinfezione da Legionella nell'Azienda Ospedaliera Policlinico
Creators: name: Iannetti, Emma
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: E' stato eseguito un monitoraggio ambientale in ambito nosocomiale per valutare l'andamento nel tempo della contaminazione da Legionella spp, in rapporto ai vari trattamenti di bonifica attuati. Nei singoli edifici dell'AOU Federico II di Napoli sono stati effettuati prelievi da acqua calda  su cui è stata condotta una analisi per la ricerca di Legionella spp. I siti risultati contaminati sono stati sottoposti a bonifica (iperclorazione, shock termico, aumento della temperatura, pulizia/manutenzione caldaie e biossido di cloro) e successivamente campionati per verificare l'efficacia della decontaminazione. La ricerca di Legionella spp ha fornito risultati positivi nel 58% dei casi (con cariche batteriche massime nell'ordine dei 10000 UFC/L) e dimostrato la colonizzazione per il 90% di sierotipo1. I metodi di bonifica attuati sono risultati variamente efficaci nel breve periodo; nel medio termine (dopo circa 1 mese) si è assistito a una progressiva ricolonizzazione. Il biossido di cloro ha prodotto un contenimento delle cariche a valori inferiori a 100 UFC/L. L'efficacia a lungo termine va ulteriormente verificata.
Transport through quantum dots with magnetic impurities
Creators: name: Tolea, M.
name: Aldea, A.
name: Bulka, B. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the electronic transport through a quantum dot that contains a magnetic impurity. The coherent transport of electrons is governed by the quantum confinement inside the dot, but is also influenced by the exchange interaction with the impurity. The interplay between the two gives raise to the singlet-triplet splitting of the energy levels available for the tunneling electron. In this paper, we focus on the charge fluctuations and, more precisely, the height of the conductance peaks. We show that the conductance peaks corresponding to the triplet levels are three times higher than those corresponding to singlet levels, if electronic correlations are neglected (for non-interacting dots, when an exact solution can be obtained). Next, we consider the Coulomb repulsion and the many-body correlations. In this case, the singlet/triplet peak height ratio has a complex behavior. Usually the highest peak corresponds to the state that is lowest in energy (ground state), regardless if it is singlet or triplet. In the end, we get an insight on the Kondo regime for such a system, and show the formation of three Kondo peaks. We use the equation of motion method with appropriate decoupling.
description: proceedings of ESM07
Elucidating the Mechanisms of Damage in Foam Core Sandwich Composites under Impact Loading and Low Temperatures
Creators: name: Castellanos, Alejandra
name: Prabhakar, Pavana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Recent interest in Arctic exploration has brought new challenges concerning the mechanical behavior of lightweight materials for offshore structures. Exposure to seawater and cold temperatures are known to degrade the mechanical properties of several materials, thus, compromising the safety of personnel and structures. This study aims to investigate the low-velocity impact behavior of woven carbon/vinyl ester sandwich composites with PVC foam core at low temperatures for marine applications. The tests were performed in a drop tower impact system with an in-built environmental chamber. Impact responses, such as the contact force, displacement and absorbed energy, at four impact energies of 7.5 J, 15 J, 30 J, and 60 J were determined at four in-situ temperatures of 25 C, 0 C, -25 C and -50 C. Results showed that temperature has a significant influence on the dynamic impact behavior of sandwich composites. The sandwich composites were rendered stiff and brittle as the temperature decreased, which has a detrimental effect on their residual strength and durability. For example, at 60 J for all temperatures, the samples experienced perforation of the top facing and core, and the back facing exhibited varying extent of damage. At -25 C and -50 C, the sandwich composite samples were almost completely perforated. At all impact energies, the sandwich composites were rendered stiff and brittle as the temperature decreased, which has a detrimental effect on their residual strength and durability.
Scaling behavior of self-avoiding walks on percolation clusters
Creators: name: Blavatska, Viktoria
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The scaling behavior of self-avoiding walks (SAWs) on the backbone of percolation clusters in two, three and four dimensions is studied by Monte Carlo simulations. We apply the pruned-enriched Rosenbluth chain-growth method (PERM). Our numerical results bring about the estimates of critical exponents, governing the scaling laws of disorder averages of the end-to-end distance of SAW configurations. The effects of finite-size scaling are discussed as well.
description: 6 pages
Stress Development and Impurity Segregation during Oxidation of the Si(100) Surface
Creators: name: Cole, Daniel J.
name: Payne, Mike C.
name: Ciacchi, Lucio Colombi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the segregation of P and B impurities during oxidation of the Si(100) surface by means of combined static and dynamical first-principles simulations based on density functional theory. In the bare surface, dopants segregate to chemically stable surface sites or to locally compressed subsurface sites. Surface oxidation is accompanied by development of tensile surface stress up to 2.9 N/m at a coverage of 1.5 monolayers of oxygen and by formation of oxidised Si species with charges increasing approximately linearly with the number of neighbouring oxygen atoms. Substitutional P and B defects are energetically unstable within the native oxide layer, and are preferentially located at or beneath the Si/SiOx interface. Consistently, first-principles molecular dynamics simulations of native oxide formation on doped surfaces reveal that dopants avoid the formation of P-O and B-O bonds, suggesting a surface oxidation mechanism whereby impurities remain trapped at the Si/SiOx interface. This seems to preclude a direct influence of impurities on the surface electrostatics and, hence, on the interactions with an external environment.
Swimmer dynamics in externally-driven fluid flows: The role of noise
Creators: name: Berman, Simon A.
name: Mitchell, Kevin A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We theoretically investigate the effect of random fluctuations on the motion of elongated microswimmers near hydrodynamic transport barriers in externally-driven fluid flows. Focusing on the two-dimensional hyperbolic flow, we consider the effects of translational and rotational diffusion as well as tumbling, i.e. sudden jumps in the swimmer orientation. Regardless of whether diffusion or tumbling are the primary source of fluctuations, we find that noise significantly increases the probability that a swimmer crosses one-way barriers in the flow, which block the swimmer from returning to its initial position. We employ an asymptotic method for calculating the probability density of noisy swimmer trajectories in a given fluid flow, which produces solutions to the time-dependent Fokker-Planck equation in the weak-noise limit. This procedure mirrors the semiclassical approximation in quantum mechanics and similarly involves calculating the least-action paths of a Hamiltonian system derived from the swimmer's Fokker-Planck equation. Using the semiclassical technique, we compute (i) the steady-state orientation distribution of swimmers with rotational diffusion and tumbling and (ii) the probability that a diffusive swimmer crosses a one-way barrier. The semiclassical results compare favorably with Monte Carlo calculations.
description: 11 figures
title: Vocabulary list for Kim Thuong dialect of the Muong language [Tan Son, Phu Tho], Speaker F3, part 5 of 7
Creators: name: Nguyên, Minh-Châu
Publisher: name: Pangloss
Year: 2021
Subjects: subject: Linguistique
subject: Mường

description: Vocabulary list for Kim Thuong dialect of the Muong language [Tan Son, Phu Tho], Speaker F3, part 5 of 7
description: Liste de vocabulaire pour le dialecte Kim Thuong de la langue Muong [Tan Son, Phu Tho], locuteur F3, partie 5 de 7
description: Vốn từ thổ ngữ tiếng Mường ở Kim Thượng (Tân Sơn, Phú Thọ), người phát âm F3, phần 5/7
การพัฒนาและสร้างมูลค่าเพิ่มผลิตภัณฑ์ผ้าครามสู่ฮิญาบผ้าครามเพื่อเข้าสู่มาตรฐานฮาลาลในเชิงพาณิชย์
Creators: name: นันทกาญจน์ เกิดมาลัย
Publisher: name: หจก.เลิศศิลป์ สาส์ณ โฮลดิ้ง
Year: 2564
Subjects: สร้างมูลค่าเพิ่ม
ฮิญาบผ้าคราม
มาตรฐานฮาลาล

description: วารสารชุมชนวิจัย มหาวิทยาลัยราชภัฏนครราชสีมา, 15, 1, 153-164
Saperda fayi Bland 1863
Creators: name: Webster, Reginald
name: McCoqrquodale, David
name: Majka, Christopher
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Saperda
Saperda fayi

description: Saperda fayi Bland, 1863 ** New Brunswick: York Co., Charters Settlement, 45.8395°N, 66.7391°W, 9.VII.2006, R.P. Webster, mixed forest, M.V. light (1, RWC).
description: Published as part of Webster, Reginald, McCoqrquodale, David & Majka, Christopher, 2009, New records of Cerambycidae (Coleoptera) for New Brunswick, Nova Scotia, and Prince Edward Island, Canada, pp. 285-308 in ZooKeys 22 (22) on page 302, DOI: 10.3897/zookeys.22.122, http://zenodo.org/record/576540
Blogging in the physics classroom: A research-based approach to shaping students' attitudes towards physics
Creators: name: Duda, Gintaras
name: Garrett, Katherine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Even though there has been a tremendous amount of research done in how to help students learn physics, students are still coming away missing a crucial piece of the puzzle: why bother with physics? Students learn fundamental laws and how to calculate, but come out of a general physics course without a deep understanding of how physics has transformed the world around them. In other words, they get the "how" but not the "why". Studies have shown that students leave introductory physics courses almost universally with decreased expectations and with a more negative attitude. This paper will detail an experiment to address this problem: a course weblog or "blog" which discusses real-world applications of physics and engages students in discussion and thinking outside of class. Specifically, students' attitudes towards the value of physics and its applicability to the real-world were probed using a 26-question Likert scale survey over the course of four semesters in an introductory physics course at a comprehensive Jesuit university. We found that students who did not participate in the blog study generally exhibited a deterioration in attitude towards physics as seen previously. However, students who read, commented, and were involved with the blog maintained their initially positive attitudes towards physics. Student response to the blog was overwhelmingly positive, with students claiming that the blog made the things we studied in the classroom come alive for them and seem much more relevant.
description: 20 pages, 6 figures
A New Look at the Higgs-Kibble Model
Creators: name: Steinmann, Othmar
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An elementary perturbative method of handling the Higgs-Kibble models and deriving their relevant properties, is described. It is based on Wightman field theory and avoids some of the mathematical weaknesses of the standard treatments.
description: Based on a talk delivered at the `Ringberg Symposium' in honor of Wolfhart Zimmermann, February 2008
SMART-PDM - Predictive Maintenance Tools to Predict Electrode Degradation in Spot Welding Manufacturing Processes
Creators: name: Apraiz, Aitor
name: Muniategui, Ander
Publisher: name: Zenodo
Year: 2021
Subjects: Predictive maintenance, condition monitoring, digital tools

description: The objective of the SMART-PDM project (ITEA4: 17041 SMART-PDM) is to gather manufacturing data to provide diagnosis and prognosis information for predictive maintenance purposes while rendering underlying technology financially feasible. MONDRAGON ASSEMBLY and LORTEK have collaborated to develop tools to predict the degradation state of electrodes used in resistance spot welding processes. Developed tools have been divided into standardized and easily generalizable modules that consist of: architecture for data retrieval, software for real time data and image analysis, software for service activation / deactivation, and interfaces for data visualization and feedback capture. Currently, tools have been implemented in two productive lines. Validation is carried out in close collaboration with experts in spot welding processes and opertors of the productive lines. This a brief description of the tools developed for the prediction of the degradation state of electrodes of resistance spot welding processes carried out by MONDRAGON ASSEMBLY and LORTEK within the SMART-PDM project.
Percolation Crossing Formulas and Conformal Field Theory
Creators: name: Simmons, Jacob J. H.
name: Kleban, Peter
name: Ziff, Robert M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using conformal field theory, we derive several new crossing formulas at the two-dimensional percolation point. High-precision simulation confirms these results. Integrating them gives a unified derivation of Cardy's formula for the horizontal crossing probability $Π_h(r)$, Watts' formula for the horizontal-vertical crossing probability $Π_{hv}(r)$, and Cardy's formula for the expected number of clusters crossing horizontally $\mathcal{N}_h(r)$. The main step in our approach implies the identification of the derivative of one primary operator with another. We present operator identities that support this idea and suggest the presence of additional symmetry in $c=0$ conformal field theories.
description: 12 pages, 5 figures. Numerics improved; minor corrections
Digital Outlook Sri Lanka 2023; Annual Digitized Consumer Insight Report
Creators: name: Dk, Thilina
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 350607
subject: Marketing technology
classificationCode: 350604
subject: Marketing communications
classificationCode: 350605
subject: Marketing management (incl. strategy and customer relations)

description: The digital landscape in Sri Lanka is rapidly evolving and continues to present a range of opportunities for businesses and individuals since recent years. The Government of Sri Lanka (GoSL) has placed a strong emphasis on expanding access to digital technology, with a focus on increasing connectivity and digital literacy. There are visible changes to how people consume media and use the internet. The COVID-19 pandemic has accelerated the shift toward digital communication and online commerce, and this trend will likely continue in 2023. For businesses in Sri Lanka, the wider digital footprint presents a range of opportunities to connect with customers and expand their reach. The e-commerce sector is expected to continue to grow as more people turn to online shopping, and businesses that are able to adapt to this trend will be well-positioned to succeed. Overall, 2023 promises to be an exciting year for the digital landscape in Sri Lanka has many opportunities for both consumers and businesses. Companies that can adapt to the changing digital landscape will be well-positioned for success, while policymakers and regulators will need to work to ensure that the Internet remains open and accessible for all.
On the relativistic Vlasov-Poisson system
Creators: name: Kiessling, Michael K. -H.
name: Tahvildar-Zadeh, A. Shadi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The Cauchy problem is revisited for the so-called relativistic Vlasov-Poisson system in the attractive case. Global existence and uniqueness of spherical classical solutions is proved under weaker assumptions than previously used. A new class of blowing up solutions is found when these conditions are violated. A new, non-gravitational physical vindication of the model which (unlike the gravitational one) is not restricted to weak fields, is also given.
description: Preprint of published version. Several typos in the previous version have been corrected
Where are we in embedding spaces? A Comprehensive Analysis on Network Embedding Approaches for Recommender Systems
Creators: name: Zhang, Sixiao
name: Chen, Hongxu
name: Ming, Xiao
name: Cui, Lizhen
name: Yin, Hongzhi
name: Xu, Guandong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Hyperbolic space and hyperbolic embeddings are becoming a popular research field for recommender systems. However, it is not clear under what circumstances the hyperbolic space should be considered. To fill this gap, This paper provides theoretical analysis and empirical results on when and where to use hyperbolic space and hyperbolic embeddings in recommender systems. Specifically, we answer the questions that which type of models and datasets are more suited for hyperbolic space, as well as which latent size to choose. We evaluate our answers by comparing the performance of Euclidean space and hyperbolic space on different latent space models in both general item recommendation domain and social recommendation domain, with 6 widely used datasets and different latent sizes. Additionally, we propose a new metric learning based recommendation method called SCML and its hyperbolic version HSCML. We evaluate our conclusions regarding hyperbolic space on SCML and show the state-of-the-art performance of hyperbolic space by comparing HSCML with other baseline methods.
Reentrant Kondo effect in Landau quantized graphene
Creators: name: Dóra, Balázs
name: Thalmeier, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the interplay of an Anderson impurity in Landau quantized graphene, with special emphasis on the influence of the chemical potential. Within the slave-boson mean-field theory, we found reentrant Kondo behaviour by varying the chemical potential or gate voltage. Between Landau levels, the density of states is suppressed, and by changing the graphene's Fermi energy, we cross from metallic to semiconducting regions. Hence, the corresponding Kondo behaviour is also influenced. The f-level spectral function reveals both the presence of Landau levels in the conduction band and the Kondo resonance.
description: 8 pages, 6 figures
Bilinguismo / Translinguismo nell’opera poetica di César Moro
Creators: name: Spadola, Andrea
Publisher: name: Firenze University Press
Year: 2014
Subjects: César Moro; exile; literary bilingualism and translingualism; migration; Peruvian Surrealist poetry

description: This article looks at the bilingual literary work of César Moro, considered one of the most important Surrealist authors in Hispanic America. The poet left for Europe at the age of 22 to become a dancer and painter. But, once he met Breton, Éluard, and Péret in Paris, he joined the Surrealist group. He wrote some Surrealist reviews and began to write poetry in French. Moro continued to use French as his main means of expression, even when he returned to Peru in 1933 and moved to Mexico some years later. This article aims to analyse Moro’s bilingual production from a translingual point of view. According to recent research, translingual writers are those who express themselves in various languages, especially other than their mother tongue.
description: LEA - Lingue e Letterature d'Oriente e d'Occidente, Vol 3 (2014)
Lost Baryons at Low Redshift
Creators: name: Mathur, Smita
name: Nicastro, Fabrizio
name: Williams, Rik J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review our attempts to discover lost baryons at low redshift with ``X-ray forest'' of absorption lines from the warm-hot intergalactic medium. We discuss the best evidence to date along the Mrk 421 sightline. We then discuss the missing baryons in the Local Group and the significance of the z=0 absorption systems in X-ray spectra. We argue that the debate over the Galactic vs. extragalactic origin of the z=0 systems is premature as these systems likely contain both components. Observations with next generation X-ray missions such as Constellation-X and XEUS will be crucial to map out the warm-hot intergalactic medium.
description: To appear in the proceedings of IAU 244 "Dark Galaxies and Lost Baryons", J. Davis and M. Disney, Eds
DROUGHT MONITORING AND ASSESSMENT USING REMOTE SENSING AND GIS APPLICATION: A CASE STUDY OF JHARKHAND, INDIA
Creators: name: PRATIBHA WARWADE
name: SANDEEP PRAKASH UJJWAL
name: SURENDRA KUMAR CHANDNIHA
Publisher: name: Zenodo
Year: 2023
Subjects: Drought, Standardized Precipitation Index, Vegetation Condition Index, Normalized Difference Vegetation Index.

description: Abstract

In this study drought monitoring and assessment have been studied over Jharkhand state of India. Now a days, climate uncertainty is one of the major problem due to climate change and anthropogenic activities over the globe. The identification of the problem is the key element for mitigate the above mentioned issues using historical data sets. For the purpose three different indices have been utilized i.e., Standard Precipitation Index (SPI), Normalized Vegetation Index (NDVI) and Vegetation Condition Index (VCI). Hence, Python based programme and Remote Sensing and GIS based techniques have been used to quantify the SPI, NDVI and VCI respectively. The study highlights the drought characteristics such as intensity, onset and offset of drought using SPI at 3, 6 and 12 months’ time scales during 1951 to 2002 for 18 districts in Jharkhand. MODIS satellite imageries have been utilised during 2000 to 2018 (October month) to derive the VCI and NDVI maps. The SPI analysis reveals that year 1966 found to be the water deficit year followed by 1992 from the span of 1951 to 2002 in Jharkhand. From the analysis it was also found that, about 78% and 56% stations experienced with extreme drought condition in year 1966 and 1992 respectively. It was also observed that as the time scale increases, the duration of drought also increases whereas, the intensity and frequency are decreases. The present study highlights spatial and temporal variations of drought severity at different location at different scales. The study can be helpful for priority based remedial solution and legislative decision making process over the state against the drought issues.