cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multimethod geophysical modelling for granite-related tungsten exploration: example of the Puy-les-Vignes/ Saint-Goussaud district (Limousin, France)
Creators: name: Dubreuil, Geoffrey
name: Harlaux, Matthieu
name: Martelet, Guillaume
name: Vic, Guillaume
name: Bernard, Julien
name: Reninger, Pierre-Alexandre
name: Raingeard, Anne
name: Dubois, Frédéric
name: Peyrefitte, Aurélie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: In the last decade, EU became aware of its dependency on mining countries for mineral resources. In that context in 2022, France launched new airborne geophysical surveys in the Limousin region (northwestern French Massif Central) which is historically renown for its gold, uranium, tungsten and tin production. Thanks to these new data, it has become possible to both explore the Saint-Goussaud - Auriat zone, centered on the Puy-les-Vignes tungsten deposit and to investigate the numerous W occurrences. To do so, direct geophysical modelling using gravimetric, airborne magnetic and electromagnetic data has allowed to create a 3D regional model. It mainly illustrates locations where evolved granites deepen, possibly associated with hidden granitic cupolas. Besides, electromagnetic data have been analysed to highlight conductive anomalies. The lineament analysis has contributed to identify a conductive corridor, interpreted as a regional structure. Conductive vertical conduits, which are spatially close to mineralized occurrences and stream-sediment anomalies have also been spotted. This new method has thus allowed generating new elements which could be combined and could have implications for granite-related tungsten exploration in this region.
Structure and stability of self-gravitating discs
Creators: name: Davies, John Bruce
Publisher: name: University of British Columbia
Year: 2010

description: Three centuries ago, the concept of the Solar Sytem being formed from an unstable disc was initially proposed. This research examines this cosmogony by the classical technique of initially obtaining the density structure of steady state discs, and gravitational instability of such systems Is then investigated in order to examine correlations between observed phenomena in the Solar System and predictions of the theory. A fluid mechanical approach to the steadystate axisymmetric structure is formulated for isothermal and polytropic gas systems, with uniform or radially dependent rotation. The equations are reduced to a single quasi-linear elliptical partial differential equation governing density, and known external boundary conditions are necessary to yield an unique density solution. When the external density is non-zero, flattened discs are possible solutions of the basic system. Two asymptotic techniques in spherical and cylindrical coordinates are created to obtain approximate solutions of the steadystate structure. Both techniques show that a self-consistent disc is composed of a high-density central bulge encircled by a low-density flat outer disc. Gravitational instability in gaseous discs is now formulated by the linear perturbation of the fundamental variables, density, pressure, gravitational potential and velocity. As the Solar System is essentially a planar structure, axisymmetric radial instability along the equatorial plane of rotation is examined. Such ring type modes are shown to be unstable to shear and tend to self-coverage. A dispersion relation is obtained analytically which indicates that the wavelength between rings is approximately inversely proportional to the square root of the steadystate density at marginal stability. However for the pure gas disc, the wavelengths are too long for any correspondence with the present spacing of the Planets. As usual, the presence of dust is invoked close to the equatorial plane. Radial instability in this gas-dust disc has a dispersion relation for the resultant wave in which the gas and dust move together such that the density term is multiplied by the dust-gas mass loading ratio. Thus the wavelengths at neutral stability will be correspondingly shorter and a correlation of ring density maxima with Planetary positions in the Solar System is obtained for reasonable values of three dimensionless parameters. If any planets exist outside Pluto the theory shows their distance apart can be expected to be similar to that of the Outer Planets, 10 a.u. Solar Systems formed by this type of instability in self-gravitating dust-gas discs can be expected to have linearly increasing planetary distances close to the central Sun "(Titius-Bode Law) with a more constant spacing further out as illustrated by our Solar System.
Bootstrap percolation in three dimensions
Creators: name: Balogh, József
name: Bollobás, Béla
name: Morris, Robert
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35, 60C05 (Primary)

description: By bootstrap percolation we mean the following deterministic process on a graph $G$. Given a set $A$ of vertices "infected" at time 0, new vertices are subsequently infected, at each time step, if they have at least $r\in\mathbb{N}$ previously infected neighbors. When the set $A$ is chosen at random, the main aim is to determine the critical probability $p_c(G,r)$ at which percolation (infection of the entire graph) becomes likely to occur. This bootstrap process has been extensively studied on the $d$-dimensional grid $[n]^d$: with $2\leq r\leq d$ fixed, it was proved by Cerf and Cirillo (for $d=r=3$), and by Cerf and Manzo (in general), that \[p_c([n]^d,r)=Θ\biggl(\frac{1}{\log_{(r-1)}n}\biggr)^{d-r+1},\] where $\log_{(r)}$ is an $r$-times iterated logarithm. However, the exact threshold function is only known in the case $d=r=2$, where it was shown by Holroyd to be $(1+o(1))\frac{π^2}{18\log n}$. In this paper we shall determine the exact threshold in the crucial case $d=r=3$, and lay the groundwork for solving the problem for all fixed $d$ and $r$.
description: Published in at http://dx.doi.org/10.1214/08-AOP433 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Anomalous conductance response of DNA wires under stretching
Creators: name: Song, Bo
name: Elstner, Marcus
name: Cuniberti, Gianaurelio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The complex mechanisms governing charge migration in DNA oligomers reflect the rich structural and electronic properties of the molecule of life. Controlling the mechanical stability of DNA nanowires in charge transport experiments is a requisite for identifying intrinsic issues responsible for long range charge transfers. By merging density-functional-theory-based calculations and model-Hamiltonian approaches, we have studied DNA quantum transport during the stretching-twisting process of poly(GC) DNA oligomers. During the stretching process, local maxima in the charge transfer integral t between two nearest-neighbor GC pairs arise from the competition between stretching and twisting. This is reflected in local maxima for the conductance, which depend very sensitively on the coupling to the electrodes. In the case of DNA-electrode couplings smaller than t, the conductance versus stretching distance saturates to plateau in agreement with recent experimental observations.
Current-pulse-induced magnetic switching in standard and nonstandard spin-valves
Creators: name: Balaz, Pavel
name: Gmitra, Martin
name: Barnas, Jozef
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetization switching due to a current-pulse in symmetric and asymmetric spin valves is studied theoretically within the macrospin model. The switching process and the corresponding switching parameters are shown to depend significantly on the pulse duration and also on the interplay of the torques due to spin transfer and external magnetic field. This interplay leads to peculiar features in the corresponding phase diagram. These features in standard spin valves, where the spin transfer torque stabilizes one of the magnetic configurations (either parallel or antiparallel) and destabilizes the opposite one, differ from those in nonstandard (asymmetric) spin valves, where both collinear configurations are stable for one current orientation and unstable for the opposite one. Following this we propose a scheme of ultrafast current-induced switching in nonstandard spin valves, based on a sequence of two current pulses.
description: 7 pages, 5 figures; to be published in Phys. Rev. B
АКТУАЛЬНОСТЬ АЭРОПАЛИНОЛОГИЧЕСКОГО МОНИТОРИНГА ВОЗДУШНОЙ СРЕДЫ Г. КРАСНОДАРА
Creators: name: Клименко Я.В.
name: Мороз А.Н.
name: Павлюченко И.И.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: аэропалинология
поллиноз
амброзия
волюметрический пыльцеуловитель VPPS 2000 «Lanzoni» (Италия)
Краснодар.

description: В статье рассматривается актуальность проведения аэропалинологических исследований и развитие данного направления в историческом аспекте. Проведен аэропалиномониторинг воздушной среды г. Краснодара в период максимального пыления таксонов травянистых аллергенных растений: июль-октябрь 2018, 2019 и 2020 г. Исследование показало: концентрация пыльцы в 2018 г. превосходит в 2,4 раза 2019 г. и 8,9 раз 2020 г. Выделен основной пыльцевой аллерген за исследуемый период – Ambrosia (70%), максимальный среднесуточный пик которой составляет: в 2018 г. 663,35 пз/м3, в 2019 г. 209,89 пз/м3, в 2020 г. – 80,62 пз/м3. Проведен ретроспективный анализ по данным амбулаторных карт больных, обратившихся за поликлинической помощью с аллергическим ринитом. Выявлена средняя корреляционная зависимость влияния показателей пыления на развитие и течение заболеваний с аллергической составляющей: за 2018 г. коэффициент корреляции (r) – 0,3435, 2019 г. – 0,3527, 2020 г. – |0,3257|.
A new non-perturbative approach to Quantum Brownian Motion
Creators: name: Sinha, Subhasis
name: Sreeram, P. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Starting from the Caldeira-Leggett (CL) model, we derive the equation describing the Quantum Brownian motion, which has been originally proposed by Dekker purely from phenomenological basis containing extra anomalous diffusion terms. Explicit analytical expressions for the temperature dependence of the diffusion constants are derived. At high temperatures, additional momentum diffusion terms are suppressed and classical Langivin equation can be recovered and at the same time positivity of the density matrix(DM) is satisfied. At low temperatures, the diffusion constants have a finite positive value, however, below a certain critical temperature, the Master Equation(ME) does not satisfy the positivity condition as proposed by Dekker.
description: 5 pages
Energetic Electron Precipitation Occurrence Rates Determined Using the Syowa East SuperDARN Radar
Creators: name: Bland, Emma C.
name: Partamies, Noora
name: Heino, Erkka
name: Yukimatu, Akira Sessai
name: Miyaoka, Hiroshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We demonstrate that the Super Dual Auroral Radar Network (SuperDARN) radar at Syowa station, Antarctica, can be used to detect high frequency radio wave attenuation in the D region ionosphere during energetic electron precipitation (EEP) events. EEP-related attenuation is identified in the radar data as a sudden reduction in the backscatter power and background noise parameters.We focus initially on EEP associated with pulsating aurora and use images from a colocated all-sky camera as a validation data set for the radar-based EEP event detection method. Our results show that high-frequency attenuation that commences during periods of optical pulsating aurora typically continues for 2-4 hr after the camera stops imaging at dawn.We then use the radar data to determine EEP occurrence rates as a function of magnetic local time (MLT) using a database of 555 events detected in 2011. EEP occurrence rates are highest in the early morning sector and lowest at around 15:00-18:00 MLT. The postmidnight and morning sector occurrence rates exhibit significant seasonal variations, reaching approximately 50% in the winter and 15% in the summer, whereas no seasonal variations were observed in other MLT sectors. The mean event lifetime determined from the radar data was 2.25 hr, and 10% of events had lifetimes exceeding 5 hr.
Crafting a Vision-Driven Product Roadmap: Defining Goals and Objectives for Strategic Success
Creators: name: Vineela Komandla
Publisher: name: Zenodo
Year: 2023
Subjects: Product roadmap, strategic goals, product management, objectives, vision-driven development, market success, problem-solving, alignment.

description: Abstract: Setting clear goals and objectives is a crucial first step before developing a product roadmap. This process involves a deep understanding of the product's purpose and the specific problems it is designed to solve. By defining clear goals, you can ensure that the product aligns with broader strategic objectives and meets the needs of its target audience. The goals should not only focus on what the product will accomplish but also how it fits into the larger business vision. This requires collaboration across teams to identify key outcomes and success metrics. Once these goals are established, they act as a guiding star throughout the product development process, ensuring that every decision made is aligned with the end objectives. This clarity helps prevent scope creep, misaligned priorities, and wasted resources, ultimately leading to a more focused and effective product. Additionally, well-defined objectives provide a framework for measuring progress and success, enabling teams to make data-driven decisions and adjust strategies as needed. By investing time upfront in setting clear goals and objectives, you create a strong foundation for a product roadmap that is not only actionable but also resilient to the challenges and changes that may arise during development. This approach ensures that the product remains aligned with both user needs and business goals, increasing the likelihood of its success in the market.
АНАЛИЗ ОНЛАЙН ПРЕПОДАВАНИЯ В КУБАНСКОМ МЕДИЦИНСКОМ ИНСТИТУТЕ ПРИ ПАНДЕМИИ COVID-19
Creators: name: Каленич Л.А.
name: Футорянская Т.Н.
name: Овчеренко А.В.
name: Мертенс Д.В.
name: Мертенс М.Н.
name: Артеменко И.Н.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: опыт онлайн преподавания при пандемии COVID – 19.

description: в условиях жесткой изоляции во время мировой пандемии COVID – 19 перед преподавателями и сотрудниками Кубанского медицинского института встал вопрос о продолжении обучения по всем дисциплинам в ограничении доступа студентов в клиники и невозможности проведения традиционного метода обучения. В работе приводятся возможности онлайн – обучения студентов – медиков.
АНТЕГРАДНЫЙ ДОСТУП В ЛЕЧЕНИИ БОЛЬНЫХ С ХАЛАНГИОЛИТИАЗОМ
Creators: name: Марийко В.А.
name: Марийко А.В.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: холангиолитиаз
папиллосфинктеротомия
литоэкстракция
механическая желтуха.

description: Антеградный чрескожный чреспеченочный доступ позволяет не только выполнить декомпрессию билиарного тракта, но и устранить холангиолитиаз. На основании анализа лечения 87 больных с холангиолитиазом проведено сравнение результатов трех вариантов операций: эндоскопические ретроградные операции, холедохолитотомия из лапаротомного доступа и антеградного рентгеноинтервенционного метода. Проведенные исследования показали, что наилучшие результаты достигаются при возможности выполнения эндоскопических ретроградных операций. Альтернативой лапаротомным операциям является антеградный рентгеноинтервенциальный метод хирургического лечения холангиолитиаза.
Evolution of the N=50 shell gap energy towards $^{78}$Ni
Creators: name: Hakala, J.
name: Rahaman, S.
name: Elomaa, V. -V.
name: Eronen, T.
name: Hager, U.
name: Jokinen, A.
name: Kankainen, A.
name: Moore, I. D.
name: Penttilä, H.
name: Rinta-Antila, S.
name: Rissanen, J.
name: Saastamoinen, A.
name: Sonoda, T.
name: Weber, C.
name: Äystö, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Atomic masses of the neutron-rich isotopes $^{76-80}$Zn, $^{78-83}$Ga, $^{80-85}Ge, $^{81-87}$As and $^{84-89}$Se have been measured with high precision using the Penning trap mass spectrometer JYFLTRAP at the IGISOL facility. The masses of $^{82,83}$Ga, $^{83-85}$Ge, $^{84-87}$As and $^{89}$Se were measured for the first time. These new data represent a major improvement in the knowledge of the masses in this neutron-rich region. Two-neutron separation energies provide evidence for the reduction of the N=50 shell gap energy towards germanium Z=32 and a subsequent increase at gallium (Z=31). The data are compared with a number of theoretical models. An indication of the persistent rigidity of the shell gap towards nickel (Z=28) is obtained.
description: 4 pages, 4 figures. To be published in Physical Review Letters
Sonic Entanglements with Electromyography: Between Bodies, Signals, and Representations
Creators: name: Reed, Courtney N
name: Morrison, Landon
name: Mcpherson, Andrew P
name: Fierro, David
name: Tanaka, Atau
Publisher: name: arXiv
Year: 2024
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: This paper investigates sound and music interactions arising from the use of electromyography (EMG) to instrumentalise signals from muscle exertion of the human body. We situate EMG within a family of embodied interaction modalities, where it occupies a middle ground, considered as a ''signal from the inside'' compared with external observations of the body (e.g., motion capture), but also seen as more volitional than neurological states recorded by brain electroencephalogram (EEG). To understand the messiness of gestural interaction afforded by EMG, we revisit the phenomenological turn in HCI, reading Paul Dourish's work on the transparency of ''ready-to-hand'' technologies against the grain of recent posthumanist theories, which offer a performative interpretation of musical entanglements between bodies, signals, and representations. We take music performance as a use case, reporting on the opportunities and constraints posed by EMG in workshop-based studies of vocal, instrumental, and electronic practices. We observe that across our diverse range of musical subjects, they consistently challenged notions of EMG as a transparent tool that directly registered the state of the body, reporting instead that it took on ''present-at-hand'' qualities, defamiliarising the performer's own sense of themselves and reconfiguring their embodied practice.
Bow wave from ultra-intense electromagnetic pulses in plasmas
Creators: name: Esirkepov, T. Zh.
name: Kato, Y.
name: Bulanov, S. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We show a new effect of the bow wave excitation by an intense short laser pulse propagating in underdense plasma. Due to spreading of the laser pulse energy in transverse direction, the bow wave causes a large-scale transverse modulation of the electron density. This can significantly increase the electric potential of the wake wave since the wake wave is generated in the region much wider than the laser pulse waist.
description: 6 pages, 4 figures
ВИЗУАЛИЗАЦИЯ ОЧАГА ПЕРВОНАЧАЛЬНОГО ВОЗБУЖДЕНИЯ В СИНОАТРИАЛЬНОМ УЗЛЕ СЕРДЦА КОШКИ ПРИ УСВОЕНИИ РИТМА БЛУЖДАЮЩЕГО НЕРВА
Creators: name: Покровский В.М.
name: Абушкевич В.Г.
name: Сомов И.М.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: высокочастотное электрическое поле
свечение очага первоначального возбуждения.

description: В 14 опытах, проведенных на сердцах кошек, помещённых в высокочастотное электромагнитное поле, наблюдали свечение пейсмейкера в фазу деполяризации. При залповой стимуляции электрическими импульсами вагосимпатического ствола отмечали развитие вагусно – сердечной синхронизации. При этом очаг свечения в зоне пейсмейкера значительно увеличивался. Томографическая регистрация очага свечения при вагусно – сердечной синхронизации показала значительное увеличение диаметров и площадей его томографических срезов по сравнению с исходным состоянием, что при вагусно – сердечной синхронизации может служить маркером её развития.
Pseudo supersymmetric partners for the generalized Swanson model
Creators: name: Sinha, A.
name: Roy, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: New non Hermitian Hamiltonians are generated, as isospectral partners of the generalized Swanson model, viz., $ H_- = {\cal{A}}^{\dagger} {\cal{A}} + α{\cal{A}} ^2 + β{\cal{A}}^{\dagger 2} $, where $ αβ$ are real constants, with $ α\neq β$, and ${\cal{A}}^{\dagger}$ and ${\cal{A}}$ are generalized creation and annihilation operators. It is shown that the initial Hamiltonian $H_-$, and its partner $H_+$, are related by pseudo supersymmetry, and they share all the eigen energies except for the ground state. This pseudo supersymmetric extension enlarges the class of non Hermitian Hamiltonians $H_{\pm}$, related to their respective Hermitian counterparts $h_{\pm}$, through the same similarity transformation operator $ρ$ : $ H_{\pm} = ρ^{-1} h_{\pm} ρ$. The formalism is applied to the entire class of shape-invariant models.
description: 22 pages, to be published in J. Phys. A
ВЛИЯНИЕ КОМБИНИРОВАННОЙ АНТИОКСИДАНТНОЙ И ФОТОДИНАМИЧЕСКОЙ ТЕРАПИИ НА ЭМОЦИОНАЛЬНОЕ СОСТОЯНИЕ ПАЦИЕНТОК С КРАУРОЗОМ ВУЛЬВЫ
Creators: name: Киселева Е.А.
name: Махмутходжаев А.Ш.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: крауроз вульвы
склеротический лихен вульвы
фотодинамическая терапия
антиоксиданты.

description: посредством Госпитальной шкалы тревоги и депрессии проведена динамическая оценка симптомов тревоги и депрессии у пациенток с краурозом вульвы, получавших лечение методом фотодинамической терапии (ФДТ), в том числе в сочетании с курсовым приемом антиоксиданта Этилметилгидроксипиридина сукцината. Было выявлено, что комбинированная фотодинамическая и антиоксидантная терапия имеет более выраженное позитивное влияние на эмоциональное состояние больных, нежели изолированное применение ФДТ. В связи с этим антиоксиданты могут быть рекомендованы для комплексной терапии крауроза в сочетании с другими методами лечения.
Paleomagnetic evidence for a disk substructure in the early solar system
Creators: name: Borlina, Cauê S.
name: Weiss, Benjamin P.
name: Bryson, James F. J.
name: Bai, Xue-Ning
name: Lima, Eduardo A.
name: Chatterjee, Nilanjan
name: Mansbach, Elias N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Astronomical observations and isotopic measurements of meteorites suggest that substructures are common in protoplanetary disks and may even have existed in the solar nebula. Here, we conduct paleomagnetic measurements of chondrules in CO carbonaceous chondrites to investigate the existence and nature of these disk sub-structures. We show that the paleomagnetism of chondrules in CO carbonaceous chondrites indicates the presence of a 101 $\pm$ 48 $μ$T field in the solar nebula in the outer solar system ($\sim$3 to 7 AU from the Sun). The high intensity of this field relative to that inferred from inner solar system ($\lesssim$3 AU) meteorites indicates a factor of $\sim$5 to 150 mismatch in nebular accretion between the two reservoirs. This suggests substantial mass loss from the disk associated with a major disk substructure, possibly due to a magnetized disk wind.
description: 16 pages, 3 figures, published in Science Advances
Testing evolutionary tracks of Pre-Main Sequence stars: the case of HD113449
Creators: name: Cusano, F.
name: Guenther, E. W.
name: Esposito, M.
name: Mundt, M.
name: Covino, E.
name: Alcalá, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Evolutionary tracks are of key importance for the understanding of star formation. Unfortunately, tracks published by various groups differ so that it is fundamental to have observational tests. In order to do this, we intend to measure the masses of the two components of the Pre-Main Sequence binary HD113449 by combining radial velocity measurements taken with HARPS, with infrared interferometric data using AMBER on the VLTI. The spectroscopic orbit that has already been determined, combined with the first AMBER measurement, allows us to obtain a very first estimation of the inclination of the binary system and from this the masses of the two stars. More AMBER measurements of HD 113449 are needed to improve the precision on the masses: in the ESO period P82 two new measurements are scheduled.
description: 4 pages, 3 figures; to appear in proceedings of Cool Star 15 conference, St.Andrews 2008
Depression detection in social media posts using transformer-based models and auxiliary features
Creators: name: Kerasiotis, Marios
name: Ilias, Loukas
name: Askounis, Dimitris
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The detection of depression in social media posts is crucial due to the increasing prevalence of mental health issues. Traditional machine learning algorithms often fail to capture intricate textual patterns, limiting their effectiveness in identifying depression. Existing studies have explored various approaches to this problem but often fall short in terms of accuracy and robustness. To address these limitations, this research proposes a neural network architecture leveraging transformer-based models combined with metadata and linguistic markers. The study employs DistilBERT, extracting information from the last four layers of the transformer, applying learned weights, and averaging them to create a rich representation of the input text. This representation, augmented by metadata and linguistic markers, enhances the model's comprehension of each post. Dropout layers prevent overfitting, and a Multilayer Perceptron (MLP) is used for final classification. Data augmentation techniques, inspired by the Easy Data Augmentation (EDA) methods, are also employed to improve model performance. Using BERT, random insertion and substitution of phrases generate additional training data, focusing on balancing the dataset by augmenting underrepresented classes. The proposed model achieves weighted Precision, Recall, and F1-scores of 84.26%, 84.18%, and 84.15%, respectively. The augmentation techniques significantly enhance model performance, increasing the weighted F1-score from 72.59% to 84.15%.
description: Social Network Analysis and Mining (Accepted)
Growth of Aggregates with Liquid-Like Ice-Shells in Protoplanetary Discs
Creators: name: Musiolik, Grzegorz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: During the first stages of planet formation, the collision growth of dust aggregates in protoplanetary discs (PPDs) is interrupted at the bouncing barrier. Dust aggregates coated by different species of ice turn out to be helpful to shift the bouncing barrier towards larger sizes due to their enhanced sticking properties in some cases. A rarely noticed fact is that H$_2$O- and H$_2$O-CH$_3$OH-NH$_3$-ice behave liquid-like when UV-irradiated within a PPD-similar environment. Dust aggregates coated by these ice species might be damped in collisions due to the liquid-like ice-shell which would effectively results in an increase of the sticking velocity. In this work, collisions of dust aggregates covered by the liquid-like H$_2$O-CH$_3$OH-NH$_3$-ice-shell are considered numerically. The coefficient of restitution and the sticking velocity are calculated for different thicknesses of the ice-shell. The simulation predicts that an ice-shell-thickness of few microns would be sufficient to allow the growth of cm-sized clusters in the PPD.
ВЫСОКОТЕХНОЛОГИЧНЫЕ СТРУКТУРЫ МЕДИЦИНСКОГО НАЗНАЧЕНИЯ НА ОСНОВЕ БИОПОЛИМЕРОВ
Creators: name: Хатко З.Н.
name: Каратабан М.М.
name: Якубова О.С.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: пектиновые вещества
рыбный коллаген
пектин-коллагеновая пленка
лекарственные вещества
пектиносодержащие сухие составы для модельных пластырей
удельная электропроводность
степень минерализации
растворимость (биодеградируемость)
нанофлекс.

description: Исследованы физико-химические показатели пектиновых растворов, предназначенных для пленкообразования. Установлено, что вид и степень этерификации пектинов имеют разные значения УЭП и степени минерализации при прочих равных условиях (рН, температура) и оказывают влияние на процесс пленкообразования. Это подтверждается микроструктурой пленок. Подобрана подложка из нанофлекса, позволяющая получить пектиновую пленку заданного размера, которая легко отделяется от нее. Нитроглицерин и трипсин вместе с пектиновыми веществами образуют пленочные структуры, свободно отделяющиеся от подложки. Коллагеновая пленка имеет высокую степень растворимости 96,33%, однако ниже, чем у пектиновой пленки (99,85%).
Sustainable Community-Based Tourism in Cambodia and Tourists’ Willingness to Pay
Creators: name: Müller, Sabine
name: Huck, Lukas
name: Markova, Jitka
Publisher: name: Austrian Journal of South-East Asian Studies
Year: 2020

description: Community-Based Tourism (CBT) sites are often seen as a tool for poverty alleviation and eradication, especially in Least Developed Countries like Cambodia. CBT as a development tool has been critically examined in recent years in a development cooperation context, but also in academic literature. Two of the major discussion points are the approaches used both to establish, and ensure the financial sustainability CBT sites. This paper seeks to contribute to these discussions by examining the viability of the classical top-down CBT model in comparison to the bottom up approach to promote sustainable tourism development in Cambodia in consideration of the Sustainable Development Goals. The often-missing financial sustainability frequently happens due to a lack of management skills and a lack of knowledge of pricing in the communities. Based on this notion, this paper also contributes to the discussion by examining the willingness to pay of different target groups (i.e., locals, expatriates, and international tourists), and presents two argu- ments in support of a stronger emphasis of the local and, especially, the expatriate mar- ket. Firstly, expatriates display significantly higher willingness to pay than international tourists, and, secondly, expatriate support allows CBT sites to build an understanding of potential customers’ needs, thereby supporting a more organic and sustainable growth.
description: Austrian Journal of South-East Asian Studies, Vol 13 No 1 (2020): Tourism and the Sustainable Development Goals
ГЕМОСТАТИЧЕСКИЕ СВОЙСТВА ПЕКТИНОВ
Creators: name: Бердыш Д.С.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: кровотечение
новые методы
остановка кровотечения
паренхима
пектины.

description: Одним из актуальных вопросов хирургии остается проблема остановки паренхиматозного кровотечения [1, 2].
Neural Click Models for Recommender Systems
Creators: name: Shirokikh, Mikhail
name: Shenbin, Ilya
name: Alekseev, Anton
name: Volodkevich, Anna
name: Vasilev, Alexey
name: Savchenko, Andrey V.
name: Nikolenko, Sergey
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We develop and evaluate neural architectures to model the user behavior in recommender systems (RS) inspired by click models for Web search but going beyond standard click models. Proposed architectures include recurrent networks, Transformer-based models that alleviate the quadratic complexity of self-attention, adversarial and hierarchical architectures. Our models outperform baselines on the ContentWise and RL4RS datasets and can be used in RS simulators to model user response for RS evaluation and pretraining.
ДЕЯТЕЛЬНОСТЬ ФЕЛЬДШЕРОВ В СИСТЕМЕ ЗДРАВООХРАНЕНИЯ СТАРООСКОЛЬСКОГО КРАЯ
Creators: name: Акинина Л.Н.
name: Грибова Е.В.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: фельдшер
уездная больница
земская медицина
земская управа
врач
эпидемия.

description: В статье рассматривается организация и оказание медицинской помощи населению в Старооскольском уезде Курской губернии от основания города до середины XIX века. Особо отмечается роль земской медицины в истории здравоохранения края. Авторы раскрывают роль врачей и фельдшеров в развитии здравоохранения, с какими трудностями приходилось им сталкиваться во врачебной практике.
ЗДОРОВЬЕ СТУДЕНТОВ-ПЕРВОКУРСНИКОВ ОрГМУ: РЕЗУЛЬТАТЫ ЭМПИРИЧЕСКОГО ИЗУЧЕНИЯ
Creators: name: Чижкова М.Б.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: студент
медицинский вуз
отношение к здоровью
компоненты отношения к здоровью
нарушения здорового поведения
факторы нарушения здорового поведения.

description: В статье рассматриваются отношение к здоровью и нарушения здорового поведения у студентов-первокурсников Оренбургского государственного медицинского университета. Применение опросника «Отношение к здоровью» и опросника «Нарушения здорового поведения», обработка эмпирических данных и их интерпретация позволяют сделать вывод о специфических особенностях заявленных феноменов у респондентов начального этапа обучения. Отношение к здоровью описывается формулой ««Знаю-Не переживаю. Знаю-Делаю», а нарушения здорового поведения соответствуют типу «имиджевое нарушение здорового поведения».
Modeling circulating cavity fields using the discrete linear canonical transform
Creators: name: Ciobanu, Alexei A.
name: Brown, Daniel David
name: Veitch, Peter J.
name: Ottaway, David J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Fabry-Perot cavities are central to many optical measurement systems. In high precision experiments, such as aLIGO and AdV, coupled cavities are often required leading to complex optical dynamics, particularly when optical imperfections are considered. We show, for the first time, that discrete LCTs can be used to compute circulating optical fields for cavities in which the optics have arbitrary apertures, reflectance and transmittance profiles, and shape. We compare the predictions of LCT models with those of alternative methods. To further highlight the utility of the LCT, we present a case study of point absorbers on the aLIGO mirrors and compare with recently published results.
A New Spectroscopic and Photometric Analysis of the Transiting Planet Systems TrES-3 and TrES-4
Creators: name: Sozzetti, A.
name: Torres, G.
name: Charbonneau, D.
name: Winn, J. N.
name: Korzennik, S. G.
name: Holman, M. J.
name: Latham, D. W.
name: Laird, J. B.
name: Fernandez, J.
name: O'Donovan, F. T.
name: Mandushev, G.
name: Dunham, E.
name: Everett, M. E.
name: Esquerdo, G. A.
name: Rabus, M.
name: Belmonte, J. A.
name: Deeg, H. J.
name: Brown, T. N.
name: Hidas, M. G.
name: Baliber, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report new spectroscopic and photometric observations of the parent stars of the recently discovered transiting planets TrES-3 and TrES-4. A detailed abundance analysis based on high-resolution spectra yields [Fe/H] $= -0.19\pm 0.08$, $T_\mathrm{eff} = 5650\pm 75$ K, and $\log g = 4.4\pm 0.1$ for TrES-3, and [Fe/H] $= +0.14\pm 0.09$, $T_\mathrm{eff} = 6200\pm 75$ K, and $\log g = 4.0\pm0.1$ for TrES-4. The accuracy of the effective temperatures is supported by a number of independent consistency checks. The spectroscopic orbital solution for TrES-3 is improved with our new radial-velocity measurements of that system, as are the light-curve parameters for both systems based on newly acquired photometry for TrES-3 and a reanalysis of existing photometry for TrES-4. We have redetermined the stellar parameters taking advantage of the strong constraint provided by the light curves in the form of the normalized separation $a/R_\star$ (related to the stellar density) in conjunction with our new temperatures and metallicities. The masses and radii we derive are $M_\star=0.928_{-0.048}^{+0.028} M_{\sun}$,$R_\star = 0.829_{-0.022}^{+0.015} R_{\sun}$, and $M_\star = 1.404_{-0.134}^{+0.066} M_{\sun}$, $R_\star=1.846_{-0.087}^{+0.096} R_{\sun}$ for TrES-3 and TrES-4, respectively. With these revised stellar parameters we obtain improved values for the planetary masses and radii. We find $M_p = 1.910_{-0.080}^{+0.075} M_\mathrm{Jup}$, $R_p=1.336_{-0.036}^{+0.031} R_\mathrm{Jup}$ for TrES-3, and $M_p=0.925 \pm 0.082 M_\mathrm{Jup}$, $R_p=1.783_{-0.086}^{+0.093} R_\mathrm{Jup}$ for TrES-4. We confirm TrES-4 as the planet with the largest radius among the currently known transiting hot Jupiters.
description: 42 pages, 10 tables, 8 figures. Accepted for publication in the Astrophysical Journal
ЗНАЧЕНИЕ КЛОНИРОВАНИЯ В МЕДИЦИНЕ
Creators: name: Васильченко В.И.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: клон
донор
клонирование
стволовая клетка
генная инженерия.

description: клонирование в биологии происходит благодаря активному развитию биотехнологий и генной инженерии в современном мире. Благодаря этим наукам, человечество может открыть новые горизонты в современной медицине и создать эффективные методы лечения раннее неизлечимых заболеваний, позволить замедлить старение организмов и создать банк генетически подходящих органов и тканей.
КОМПЛЕКСНОЕ ЛЕЧЕНИЕ ЭХИНОКОККОЗА ПЕЧЕНИ
Creators: name: Татаршаов М. Х.
name: Мачукова М. Н.
name: Узденов М. Б.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: эхинококкоз печени
эхинококковая киста
эхинококкэктомия
радикальная операция
перецистэктомия
фиброзная капсула.

description: Проанализировано комплексное лечение эхинококкоза печени у 203 пациентов. В Карачаево – Черкессии за последнее десятилетие количество операций по поводу эхинококкоза печени (ЭП) сократилось более чем в 1,5 раза. Установлено, что сколексоцидная обработка остаточной полости с последующей обязательной антигельминтной терапией позволяет достичь тех же результатов в плане профилактики рецидива заболевания, что и при радикальных хирургических вмешательствах – 3,0% и 2,7% соответственно. Динамический мониторинг ИФА после операции по поводу ЭП позволяет прогнозировать возможный рецидив заболевания до выявления кистозных образований провести эффективную антигельминтную терапию в 5 из 6 случаев. Использование современного оборудования (Электрохирургический аппарат ES Visionс аргоновым модулем) позволяет упростить технику резекции печени, снизить кровопотерю при оперативных вмешательств на печени.
Star formation in global Hierarchical Gravitational Collapse
Creators: name: Romero, Raul Naranjo
Publisher: name: Zenodo
Year: 2019
Subjects: Star Formation
Gravitation Collapse

description: Molecular clouds have been generally considered to be dense virialized structures in the interstellar medium, supported by magnetic fields or turbulence, with relatively long free-fall times and collapsing only locally at the scale of their dense cores. In this picture, the dense cores start their lives as low-mass hydrostatic structures and somehow eventually become gravitationally unstable in order to form stars. However, this notion has been criticized by a number of authors. Moreover, recent observations have shown the ubiquity of filaments in molecular clouds, which in addition appear to be funneling gas to the dense cores.

In this talk, I will describe a scenario in which molecular clouds are considered in a state of hierarchical gravitational collapse, i.e., developing local centers (filaments and cores) of collapse throughout the whole cloud while the cloud itself is also collapsing, making equilibrium unnecessary at all stages prior to the formation of actual stars and explaining some of the observed features.
description: Talk at the IMPMC-MNHN, Paris, France.
Verification of Component Fault Trees Using Error Effect Simulations
Creators: name: Reiter, Sebastian
name: Zeller, Marc
name: Hoefig, Kai
name: Viehl, Alexander
name: Bringmann, Oliver
name: Rosenstiel, Wolfgang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The growing complexity of safety-relevant systems causes an increasing effort for safety assurance. The reduction of development costs and time-to-market, while guaranteeing safe operation, is therefore a major challenge. In order to enable efficient safety assessment of complex architectures, we present an approach, which combines deductive safety analyses, in form of Component Fault Trees (CFTs), with an Error Effect Simulation (EES) for sanity checks. The combination reduces the drawbacks of both analyses, such as the subjective failure propagation assumptions in the CFTs or the determination of relevant fault scenarios for the EES. Both CFTs and the EES provide a modular, reusable and compositional safety analysis and are applicable throughout the whole design process. They support continuous model refinement and the reuse of conducted safety analysis and simulation models. Hence, safety goal violations can be identified in early design stages and the reuse of conducted safety analyses reduces the overhead for safety assessment.
The Golden Mile Complex
Creators: name: Chan, Ying-Kit
Publisher: name: Austrian Journal of South-East Asian Studies
Year: 2020

description: The Golden Mile Complex is one of Singapore’s first shopping malls, built as part of the postcolonial government’s plan to expand and redevelop the urban center. Barely a decade into its existence, Thai eateries, shops, and remittance centers sprang up at the complex, which became known as ‘Little Thailand’ among Singaporeans. For some Singaporeans, Little Thailand suggests the ‘exotic’ or ‘mysterious’; for others, it is simply dirty, danger- ous, and disorderly – a likely result of unflattering descriptions in official statements, press reports, and opinion pieces. This article proposes to examine Little Thailand as an idea and social construction. It explores how Singaporeans have seen Little Thailand and how they have distinguished themselves from the Oriental ‘other’ through their own cognitive, racial categories. Little Thailand expresses the experiences and values of Singaporeans more than it expresses those of Thais. By treating Little Thailand as an idea and a social construction rather than as a physical location (i.e., the Golden Mile Complex), the article uncovers a broader relationship between place, racial discourse, and public perceptions in postcolonial Singapore.
description: Austrian Journal of South-East Asian Studies, Vol 13 No 1 (2020): Tourism and the Sustainable Development Goals
Deciphering the Development of Smart and Sustainable Tourism Cities in Southeast Asia
Creators: name: Stephenson, Marcus L.
name: Dobson, Graeme
Publisher: name: Austrian Journal of South-East Asian Studies
Year: 2020

description: A recognized desire is noticeable within ASEAN nations to develop more sustainable approaches to urban development and tourism. One solution has been to promote the expansion of both smart cities and smart tourism practices. Recently, these smart approaches have been implemented across a variety of different cities and locales. The purpose of this paper is to discuss the potential for further research in developing relation- ships between ‘smart cities’ and ‘smart tourism’ practices in Southeast Asia. Rather than present a review of the entire region, three potential case studies located in Myanmar, Lao PDR, and Thailand are discussed. These include Yangon as a case of smart approaches in a primary city, Vientiane as a case of smart approaches in a smaller city, and Phuket as a case of smart approaches in an area which suffers from overtourism. The authors maintain that this type of case study research within ASEAN states can provide critical insights and local solutions to the advancement of smart and sustainable tourism destinations.
description: Austrian Journal of South-East Asian Studies, Vol 13 No 1 (2020): Tourism and the Sustainable Development Goals
A calculation of gravitational radiation
Creators: name: Nagata, Kenneth Wayne
Publisher: name: University of British Columbia
Year: 2010

description: Approximate gravitational field equations in an alternative theory of gravity are solved for a class of boundary conditions. The generation of gravitational radiation from spatially bounded sources is analyzed, and it is found that the theory predicts the emission of dipole gravitational radiation. However, the dipole radiation vanishes for slow-motion post-Newtonian sources.
МОРФОЛОГИЧЕСКАЯ ОЦЕНКА ГЕМОСТАТИЧЕСКИХ СВОЙСТВ ПЕКТИНА НА МОДЕЛИ ТРАВМЫ ПЕЧЕНИ
Creators: name: Павленко С.Г.
name: Понкина О.Н.
name: Евглевский А.А.
name: Бердыш Д.С.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: белые крысы линии Wistar
рана печени
яблочный пектин
гемостаз
морфологические изменения ткани печени.

description: Эксперименты осуществлены на 60 белых крысах линии Wistar. Под наркозом выполнялось тангенциальное сечение края печени длиной 1,0 см и глубиной 0,7 см. Гемостаз достигался прикладыванием к ране печени салфетки с порошком яблочного пектина. Морфологическое исследование печени осуществлялось на 3, 7 и 14-е сутки после начала эксперимента. Данные исследования показали выраженную динамику регенерации печени с восстановлением мезотелия к 14-му дню и резорбцию пектина печеночными клетками.
Controllable spin-current blockade in a Hubbard chain
Creators: name: Yao, Yao
name: Zhao, Hui
name: Moore, Joel E.
name: Wu, Chang-Qin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the spin/charge transport in a one-dimensional strongly correlated system by using the adaptive time-dependent density-matrix renormalization group method. The model we consider is a non-half-filled Hubbard chain with a bond of controllable spin-dependent electron hoppings, which is found to cause a blockade of spin current with little influence on charge current. We have considered (1) the spread of a wave packet of both spin and charge in the Hubbard chain and (2) the spin and charge currents induced by a spin-dependent voltage bias that is applied to the ideal leads attached at the ends of this Hubbard chain. It is found that the spin-charge separation plays a crucial role in the spin-current blockade, and one may utilize this phenomenon to observe the spin-charge separation directly.
description: 5 pages, 5 figures