cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Role of Carbon Capture and Storage Electricity in Attaining 1.5 and 2°C
Creators: name: Vinca, Adriano
name: Rottoli, Marianna
name: Marangoni, Giacomo
name: Tavoni, Massimo
name: Vinca, Adriano
name: Rottoli, Marianna
name: Marangoni, Giacomo
name: Tavoni, Massimo
Publisher: name: Unknown
Year: 2017
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Carbon Capture and Storage
subject: Integrated Assessment Model
subject: Climate Mitigation Policies
subject: Electricity Sector
subject: Low-carbon Technology

description: The climate targets defined under the Paris agreement of limiting global temperature increase below 1.5 or 2°C require massive deployment of low-carbon options in the energy mix, which is currently dominated by fossil fuels. Scenarios suggest that Carbon Capture and Storage (CCS) might play a central role in this transformation, but CCS deployment is stagnating and doubts remain about its techno-economic feasibility. In this article, we carry out a throughout assessment of the role of CCS electricity for a variety of temperature targets, from 1.5 to above 4°C, with particular attention to the lower end of this range. We collect the latest data on CCS economic and technological future prospects to accurately represent several types of CCS plants in the WITCH energy-economy model, We capture uncertainties by means of extensive sensitivity analysis in parameters regarding plants technical aspects, as well as costs and technological progress. Our research suggests that stringent temperature scenarios constrain fossil fuel CCS based deployment, which is maximum for medium policy targets. On the other hand, Biomass CCS, along with renewables, increases with the temperature stringency. Moreover, the relative importance of cost and performance parameters change with the climate target. Cost uncertainty matters in less stringent policy cases, whereas performance matters for lower temperature targets.
Шум автомобильного транспорта
Creators: name: В.А. Васильев
name: В.К. Ксенофонтова
Publisher: name: figshare
Year: 2020
Subjects: subject: 91301 Acoustics and Noise Control (excl. Architectural Acoustics)
subject: FOS: Mechanical engineering

description: Показано, что основным фактором негативного воздействия на окружающую среду является шум автомобильного транспорта. Рассматриваются причины возникновения шума автотранспорта, как единичных источников шума, так и автотранспортного потока. Описаны явления, влияющие на распространение и затухание звука. Представлена общая информация о методах определения шумовой характеристики автотранспортного потока с помощью натурных измерений. Рассмотрен вопрос нормирования шума в России и других странах. Дано представление об основных шумозащитных мероприятиях для автотранспортного потока. Показаны существующие проблемы, связанные с оценкой шума автотранспортного потока.  
Anti M-Weierstrass function sequences
Creators: name: Calderón-Moreno, M. Carmen
name: Gerlach-Mena, Pablo J.
name: Prado-Bassas, José A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B87, 28A20, 40A30, 46A45

description: Large algebraic structures are found inside the space of sequences of continuous functions on a compact interval having the property that, the series defined by each sequence converges absolutely and uniformly on the interval but the series of the upper bounds diverges. So showing that there exist many examples satisfying the conclusion but not the hypothesis of the Weierstrass M-test.
Frequency-dependent spontaneous emission rate from CdSe and CdTe nanocrystals: influence of dark states
Creators: name: van Driel, A. F.
name: Allan, G.
name: Delerue, C.
name: Lodahl, P.
name: Vos, W. L.
name: Vanmaekelbergh, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied the rate of spontaneous emission from colloidal CdSe and CdTe nanocrystals at room temperature. The decay rate, obtained from luminescence decay curves, increases with the emission frequency in a supra-linear way. This dependence is explained by the thermal occupation of dark exciton states at room temperature, giving rise to a strong attenuation of the rate of emission. The supra-linear dependence is in agreement with the results of tight-binding calculations.
description: 11 pages
Data-driven human behavior learning and prediction in smart cities
Creators: name: Qin, Zhou
Publisher: name: No Publisher Supplied
Year: 2021

description: Over the last decade, enormous data have been logged and collected with the development of infrastructures in smart cities, such as cellular networks and vehicular networks. Learning human behaviors by leveraging such large-scale data sets becomes extremely popular due to the accessibility to data, which further reveals insights regarding user behavior patterns. Such insights are not only rich in business value but also helpful for improving system or service performance, which benefits the users in return. For example, learning from data traffic log data in cellular networks helps enhance the resilience of cellular systems, e.g., better handling data traffic surge during crowded events, which then improves the user experience in return. Human behaviors can generally be revealed by two dimensions, i.e., offline physical mobility patterns and online data usage patterns, which can be captured by infrastructures such as cellular systems and vehicular systems. However, most existing works mainly focus on learning from a single system or approach the learning from the aggregate system level, missing the potential aid by fusing information from heterogeneous systems or integrating both aggregate system aspect and individual user aspect. In this dissertation, building upon the comprehensive data investigation on collected city-level data sets covering millions of users, we demonstrate human behaviors learning and prediction by three concrete examples with heterogeneous systems and both aggregate and individual aspects: 1) Behavior learning and prediction on traveling time:we investigate the traffic crowdedness level by designing EXIMIUS, a hybrid measurement framework with implicit sensing data from cellular signaling data and explicit sensing data from vehicular GPS data. We then show a comparative study from two sensing sources and present a data fusion-based crowdedness level predictor. 2) Behavior learning and prediction on cellular data traffic: we present a cellular data traffic prediction framework called CellPred, which combines behavioral modeling from individual user level and aggregated modeling from cell tower level. 3) Behavior learning and prediction on mobile WiFi usage: we provide a mobile WiFi usage predictor called MIMU, which dedicates to mobility regularity and access irregularity in the mobile WiFi setting. We implement and evaluate the three frameworks by real-world data collected from two Chinese cities, Shenzhen and Hefei. Our data investigation and framework evaluation results provide insights for broad human behavior learning and prediction works, which are beneficial to both the service providers and the involved users.
To Go or not to Go: Migration Alleviates Climate Damages even for Those Who Stay Behind
Creators: name: Shayegh, Soheil
name: Casey, Greg P.
name: Shayegh, Soheil
name: Casey, Greg P.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: Migration
subject: Climate Change
subject: Fertility
subject: Population
subject: Wage
subject: Quantity-quality Tradeoff

description: We examine the effect of climate change on fertility rates and human capital accumulation in developing countries, focusing on the instrumental role of migration. In particular, we investigate how climate-induced migration in developing countries will affect those who do not migrate. Holding all else constant, climate shocks raise the return to acquiring skills, because skilled individuals compared to unskilled ones have greater opportunity to migrate after the shock. In response to this change in incentives, parents choose to invest more in education and have less children, a process known as the ‘quantity-quality’ trade-off. These effects partially offset the damages of climate change, even for those who do not migrate.
description: F22
Моделирование виброакустических процессов внутренних источников шума овощерезательных машин
Creators: name: Ерёменко Д.О.
name: Заплетников И.Н.
name: А.К. Пильненко
Publisher: name: figshare
Year: 2020
Subjects: subject: 91301 Acoustics and Noise Control (excl. Architectural Acoustics)
subject: FOS: Mechanical engineering

description: Проведено моделирование виброакустических процессов в конструкциях овощерезательных машинах общественного питания. Получены зависимости амплитуды виброскоростей масс двухмассовой динамической виброакустической системы (ВАС), которой моделируются монопольные излучатели, от амплитуды возмущающей силы и круговой частоты вынужденных колебаний, из которых видно, что виброскорости увеличиваются с возрастанием амплитуды возбуждающей силы и уменьшаются с возрастанием значений круговой частоты вынужденных колебаний. Определены зависимости изменения амплитуды виброскоростей масс от удельного сопротивления нарезанию продукта рабочим органом и масс системы. Установлена зависимость амплитуды виброскорости масс от первой массы, с увеличением которой значения виброскоростей увеличиваются. Выполнено моделирование коэффициента излучения шума исследуемого класса машин. В работе исследован коэффициент потерь колебательной энергии в конструкциях исследуемых машин. На передаточные функции масс наиболее существенное влияние оказывает частота вынужденных колебаний, в особенности на вторую, поэтому для улучшения виброакустических характеристик целесообразно снижать передаточную функцию, прежде всего первой массы, а также снижать амплитуды внешней нагрузки.
Self-Similar blow-up for a diffusion-attraction problem
Creators: name: Guerra, Ignacio A.
name: Peletier, Mark A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 35Q, 35K60, 35B40, 82C21

description: In this paper we consider a system of equations that describes a class of mass-conserving aggregation phenomena, including gravitational collapse and bacterial chemotaxis. In spatial dimensions strictly larger than two, and under the assumptions of radial symmetry, it is known that this system has at least two stable mechanisms of singularity formation (see e.g. M.P. Brenner et al.1999, Nonlinearity, 12, 1071-1098); one type is self-similar, and may be viewed as a trade-off between diffusion and attraction, while in the other type the attraction prevails over the diffusion and a non-self-similar shock wave results. Our main result identifies a class of initial data for which the blow-up behaviour is of the former, self-similar type. The blow-up profile is characterized as belonging to a subset of stationary solutions of the associated ordinary differential equation.
description: 28 pages, 1 figure with 2 pictures
Effect of a columnar defect on the shape of slow-combustion fronts
Creators: name: Myllys, M.
name: Maunuksela, J.
name: Merikoski, J.
name: Timonen, J.
name: Horváth, V. K.
name: Ha, M.
name: Nijs, M. den
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We report experimental results for the behavior of slow-combustion fronts in the presence of a columnar defect with excess or reduced driving, and compare them with those of mean-field theory. We also compare them with simulation results for an analogous problem of driven flow of particles with hard-core repulsion (ASEP) and a single defect bond with a different hopping probability. The difference in the shape of the front profiles for excess vs. reduced driving in the defect, clearly demonstrates the existence of a KPZ-type of nonlinear term in the effective evolution equation for the slow-combustion fronts. We also find that slow-combustion fronts display a faceted form for large enough excess driving, and that there is a corresponding increase then in the average front speed. This increase in the average front speed disappears at a non-zero excess driving in agreement with the simulated behavior of the ASEP model.
description: 7 pages, 7 figures
Temperature Profiles in Hamiltonian Heat Conduction
Creators: name: Eckmann, Jean-Pierre
name: Young, Lai-Sang
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study heat transport in the context of Hamiltonian and related stochastic models with nearest-neighbor coupling, and derive a universal law for the temperature profiles of a large class of such models. This law contains a parameter $α$, and is linear only when $α=1$. The value of $α$ depends on energy-exchange mechanisms, including the range of motion of tracer particles and their times of flight.
description: Revised text, same results Second revision
Может ли длительное ношение наушников увеличить риск развития гиперакузии?
Creators: name: А.В. Храмов
name: С.К. Петров
name: С.В. Левин
name: Е.А. Левина
Publisher: name: figshare
Year: 2020
Subjects: subject: 91301 Acoustics and Noise Control (excl. Architectural Acoustics)
subject: FOS: Mechanical engineering

description: Эффект воздействия длительного ношения наушников на функции слухового анализатора сравнительно хорошо изучен, но влияние наушников на развитие идиопатической гиперакузии не отражено в публикациях. Проведено обследование двух групп добровольцев. В состав 1-й группы были включены 20 студентов, прослушивающих аудиоплеер с наушниками-вкладышами более 3-х часов в день на протяжении последних 3 лет (в 7 случаях – не менее 6 часов в день). Во 2-ю группу вошли студенты, не использующие аудиоплеер или прослушивающие его менее 1 часа в день. Не выявлено влияние длительного применения наушников-вкладышей на частоту идиопатической гиперакузии, однако необходимо продолжить исследование этого вопроса в динамике.
Trade in Environmental Goods: Empirical Exploration of Direct and Indirect Effects on Pollution by Country’s Trade Status
Creators: name: Zugravu-Soilita, Natalia
name: Zugravu-Soilita, Natalia
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: Environmental Goods
subject: Environmental Policy
subject: Net Exporter
subject: Net Importer
subject: Pollution
subject: Trade

description: Based on panel data covering 114 countries in the world, this study investigates the direct, indirect and total effects of trade flows in environmental goods (EG) on total CO2 and SO2 emissions. Our system-GMM estimations reveal positive direct scale – [between-industry] composition effects prevailing on the negative direct technique – [within-industry] composition effects (if any), as well as compensating the significant indirect technique effects channelled by the stringency of environmental regulations and per capita income. If the net importers of EGs (namely from the APEC54 and WTO26 lists) are recurrently found to face increased pollution (in particular CO2 emissions) due to direct scale-composition effects of trade in EGs, the EGs’ net exporters are more likely to see their local pollution to decrease, in particular thanks to income-induced effects. We show that the direct, indirect and total effects of trade in EGs depend on the country’s net trade status, the EGs’ classification and the pollutant considered.
Discovery and identification of the very high redshift afterglow of GRB 050904
Creators: name: Haislip, J.
name: Nysewander, M.
name: Reichart, D.
name: Levan, A.
name: Tanvir, N.
name: Cenko, S.
name: Fox, D.
name: Price, P.
name: Castro-Tirado, A.
name: Gorosabel, J.
name: Evans, C.
name: Figueredo, E.
name: MacLeod, C.
name: Kirschbrown, J.
name: Jelinek, M.
name: Guziy, S.
name: Postigo, A. de Ugarte
name: Cypriano, E.
name: LaCluyze, A.
name: Graham, J.
name: Priddey, R.
name: Chapman, R.
name: Rhoads, J.
name: Fruchter, A.
name: Lamb, D.
name: Kouveliotou, C.
name: Wijers, R.
name: Schmidt, B.
name: Soderberg, A.
name: Kulkarni, S.
name: Harrison, F.
name: Moon, D.
name: Gal-Yam, A.
name: Kasliwal, M.
name: Hudec, R.
name: Vitek, S.
name: Kubanek, P.
name: Crain, J.
name: Foster, A.
name: Bayliss, M.
name: Clemens, J.
name: Bartelme, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In 2000, Lamb and Reichart predicted that gamma-ray bursts (GRBs) and their afterglows occur in sufficient numbers and at sufficient brightnesses at very high redshifts (z > 5) to eventually replace quasars as the preferred probe of element formation and reionization in the early universe and to be used to characterize the star-formation history of the early universe, perhaps back to when the first stars formed. Here we report the discovery of the afterglow of GRB 050904 and the identification of GRB 050904 as the first very high redshift GRB. We measure its redshift to be 6.39(+0.11,-0.12), which is consistent with the reported spectroscopic redshift (6.29 +/- 0.01). Furthermore, just redward of Ly-alpha the flux is suppressed by a factor of three on the first night, but returns to expected levels by the fourth night. We propose that this is due to absorption by molecular hydrogen that was excited to rovibrational states by the GRB's prompt emission, but was then overtaken by the jet. Now that very high redshift GRBs have been shown to exist, and at least in this case the afterglow was very bright, observing programs that are designed to capitalize on this science will likely drive a new era of study of the early universe, using GRBs as probes.
description: Submitted to Nature, 11 pages, 3 figures, LaTeX
Constraining the neutron-proton effective mass splitting in neutron-rich matter
Creators: name: Li, Bao-An
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Within Bombaci's phenomenological single-nucleon potential model we study the neutron-proton effective mass splitting $m_n^*- m_p^*$ in neutron-rich matter. It is shown that an effective mass splitting of $m_n^*
description: Phys. Rev. C (2004) in press
Optimal Carbon Dioxide Removal in Face of Ocean Carbon Sink Feedback
Creators: name: Manoussi, Vassiliki
name: Shayegh, Soheil
name: Tavoni, Massimo
name: Manoussi, Vassiliki
name: Shayegh, Soheil
name: Tavoni, Massimo
Publisher: name: Unknown
Year: 2017
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Climate Change
subject: Outgassing
subject: Carbon Dioxide Removal
subject: Integrated Assessment Model (DICE)

description: Carbon dioxide removal (CDR) is a potentially important climate strategy for attaining low climate stabilization objectives. However, climate analysis has indicated a possible weakening of the ocean carbon sinks -the largest in the world- in relation to CDR deployment. Here, we provide an economic appraisal to assess the sensitivity of CDR and conventional abatement to CO2 outgassing from the oceans. We develop a theoretical framework to study the impact of the ocean-to-atmosphere transfer on the optimal mitigation strategies under different regimes that control the relationship between CO2 outgassing and the amount of CDR. We show that the optimal levels of emissions and CDR are correlated to the effectiveness of CDR expressed as a linear function of atmospheric concentrations. We incorporate this effect into an integrated assessment model of climate and economy (DICE model) and confirm the theoretical findings with numerical simulations. Further, we perform a sensitivity analysis to find the range of optimal abatement and CDR actions under different values of the CDR effectiveness coefficient.
Quantifying Non-cooperative Climate Engineering
Creators: name: Emmerling, Johannes
name: Tavoni, Massimo
name: Emmerling, Johannes
name: Tavoni, Massimo
Publisher: name: Unknown
Year: 2017
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Climate Engineering
subject: Climate Governance
subject: Free Driving
subject: Climate Policy

description: The mismatch between actions to combat climate change, which are based on voluntary national initiatives of limited effort, and the recognition of the importance of global warming is growing. Climate engineering via solar radiation management has been proposed as a possible complement to traditional climate policies. However, climate engineering entails specific risks, including its governance. Free driving, the possibility of unilateral climate engineering to the detriment of other nations, has been recently proposed as a potentially powerful additional externality to the traditional free riding one (Weitzman, 2015). This paper provides the first quantitative evaluation of the risks of free driving. Our results indicate that in a strategic setting there is significant over-provision (by almost an order of magnitude) of climate engineering above what is socially optimal, resulting in a sub-optimal global climate. Regions with high climate change impacts, most notably India and developing Asia, deploy climate engineering at the expenses of other regions.
Communication and transformation in video art
Creators: name: Werther-Rosenow, Barbara
Publisher: name: No Publisher Supplied
Year: 2021

description: It is a well-established fact that the medium of video lacks a unified identity and lends itself best to a comparative and interdisciplinary investigation which is precisely what this dissertation undertakes. My departure point is the discipline of art history and artworks in video with a focus on the art of Bill Viola. However, I expand my topic to include, among other aspects, analogies with prehistoric cave art and depth psychology as practiced by Carl Jung. The aim of my dissertation is the discussion of neglected and suppressed qualities of the medium. I identify a dialogical dimension in the medium and compare it to a psychoanalytical session. True dialogue—where we fully see the other and are simultaneously seen for who we really are (bidirectionality is an intrinsic quality of video technology)—takes us into depths of consciousness and toward existential questions of meaning with strong religious overtones. I thus posit the dialogical and by extension the religious and un/conscious as disregarded qualities of the medium. The popular format of the video installation demonstrates a deep structural relationship with painted prehistoric caves which have also been associated with consciousness and a shamanic religion. These comparisons relate video art to psychoanalysis and shamanism and reveal the potentially transformational qualities of video (installation) art. Generally, extraordinarily beneficial things have an equally detrimental aspect to them which is clearly the case with the medium of video in its expression as commercial television. More importantly, the transformational qualities of video have not been recognized because of a deeply entrenched skepticism toward religion, consciousness, and dialogue, which has also strongly impacted the reception of Viola’s work that explicitly deals with them. It is time we overcame our prejudices and realized the powerfully connective and potentially transformational qualities of the medium of video in general and of Viola’s art in particular.
IGAPS: the merged IPHAS and UVEX optical surveys of theNorthern Galactic Plane
Creators: name: Monguió, M.
name: Greimel, R.
name: Drew, J. E.
name: Barentsen, G.
name: Groot, P. J.
name: Irwin, M. J.
name: Casares, J.
name: Gänsicke, B. T.
name: Carter, P. J.
name: Corral-Santana, J. M.
name: Gentile-Fusillo, N. P.
name: Greiss, S.
name: van Haaften, L. M.
name: Hollands, M.
name: Jones, D.
name: Kupfer, T.
name: Manser, C. J.
name: Murphy, D. N. A.
name: McLeod, A. F.
name: Oosting, T.
name: Parker, Q. A.
name: Pyrzas, S.
name: Rodríguez-Gil, P.
name: van Roestel, J.
name: Scaringi, S.
name: Schellart, P.
name: Toloza, O.
name: Vaduvescu, O.
name: van Spaandonk, L.
name: Verbeek, K.
name: Wright, N. J.
name: Eislöffel, J.
name: Fabregat, J.
name: Harris, A.
name: Morris, R. A. H.
name: Phillipps, S.
name: Raddi, R.
name: Sabin, L.
name: Unruh, Y.
name: Vink, J. S
name: Wesson, R.
name: Cardwell, A.
name: Cochrane, R. K.
name: Doostmohammadi, S.
name: Mocnik, T.
name: Stoev, H.
name: Suárez-Andrés, L.
name: Tudor, V.
name: Wilson, T. G.
name: Zegmott, T. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys, IPHAS and UVEX, based on data from the Isaac Newton Telescope (INT) obtained between 2003 and 2018. Here, we present the IGAPS point source catalogue. It contains 295.4 million rows providing photometry in the filters, i, r, narrow-band Halpha, g and U_RGO. The IGAPS footprint fills the Galactic coordinate range, |b| < 5deg and 30deg < l < 215deg. A uniform calibration, referred to the Pan-STARRS system, is applied to g, r and i, while the Halpha calibration is linked to r and then is reconciled via field overlaps. The astrometry in all 5 bands has been recalculated on the Gaia DR2 frame. Down to i ~ 20 mag (Vega system), most stars are also detected in g, r and Halpha. As exposures in the r band were obtained within the IPHAS and UVEX surveys a few years apart, typically, the catalogue includes two distinct r measures, r_I and r_U. The r 10sigma limiting magnitude is ~21, with median seeing 1.1 arcsec. Between ~13th and ~19th magnitudes in all bands, the photometry is internally reproducible to within 0.02 magnitudes. Stars brighter than r=19.5 have been tested for narrow-band Halpha excess signalling line emission, and for variation exceeding |r_I-r_U| = 0.2 mag. We find and flag 8292 candidate emission line stars and over 53000 variables (both at >5sigma confidence). The 174-column catalogue will be available via CDS Strasbourg.
description: 28 pages, 22 figures
Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics
Creators: name: Tomita, Akihisa
name: Nakamura, Kazuo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum Fourier transform (QFT) is a key function to realize quantum computers. A QFT followed by measurement was demonstrated on a simple circuit based on fiber-optics. The QFT was shown to be robust against imperfections in the rotation gate. Error probability was estimated to be 0.01 per qubit, which corresponded to error-free operation on 100 qubits. The error probability can be further reduced by taking the majority of the accumulated results. The reduction of error probability resulted in a successful QFT demonstration on 1024 qubits.
description: 15 pages, 6 figures, submitted to EQIS 2003 Special issue, Int. J. Quantum Information
Photometric study of close binary stars in the M35, M67, and M71 Galactic clusters
Creators: name: Koçak, Dolunay
name: İçli, Tuğçe
name: Yakut, Kadri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We obtained new multicolour photometry of close binary stars in the young open cluster M35, the solar-age open cluster M67, and the globular cluster M71. New observations have been carried out at the TÜBİTAK National Observatory (TUG) by using the 100cm (T100) telescope. We present observational results for eclipsing binary systems in the selected Galactic clusters. New accurate light curves for 2MASS J19532554 + 1851175, 2MASS J19533427 + 1844047, 2MASS J06092044 + 2415155, and AH Cnc were obtained. The light curves were analysed and we derived some of the orbital parameters of the systems.
description: 5 pages, 4 figures, accepted for publication in CAOSP
The Globular Cluster Systems of NGC 3258 and NGC 3268 in the Antlia Cluster
Creators: name: Dirsch, B.
name: Richtler, T.
name: Bassino, L. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Antlia galaxy cluster is the third nearest galaxy cluster after Virgo and Fornax. We used the wide-field MOSAIC camera of the 4-m CTIO telescope to search in the brightest cluster galaxies for globular cluster systems, which were detected in the two larger ellipticals -- NGC 3258 and NGC 3268. These galaxies each contain several thousand clusters; NGC 3258 more than NGC 3268. The color distributions of the globular cluster systems are clearly bimodal. The peak colors agree with those of other ellipticals. The radial number density profiles of the globular cluster systems are indistinguishable for the two galaxies and no difference in the distribution of red and blue clusters - as observed in other elliptical galaxies - can be seen. The light profile of NGC 3268 appears to be similar to that of NGC 1399, the central galaxy of the Fornax cluster. NGC 3258 has a light profile which is steeper at large radii. Both galaxies exhibit color gradients, becoming bluer outwards.In NGC 3268, the color and morphology in the inner 3" indicate the presence of an inner dusty disk. The globular cluster systems closely trace the galaxy light in the studied radial regime. The elongation of the cluster systems of both galaxies is approximately aligned at large radii with the connecting axis of the two galaxies.We find specific frequencies within a radial range of 4'of S_N=3.0+-2.0 for NGC 3268 and S_N=6.0+-2.5 for NGC 3258. As a byproduct resulting from surveying our wide-field frames, we describe a strange absorption feature in the Antlia spiral galaxy NGC 3269, which we argue might be a tiny galactic dust cloud projected onto NGC 3269.
description: 12 pages, accepted for publication in the A&A
Employment Spillover Effects of Rural Inpatient Healthcare Facilities
Creators: name: Miller, Cristina
name: Pender, John
name: Hertz, Thomas
name: Miller, Cristina
name: Pender, John
name: Hertz, Thomas
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: inpatient healthcare employment multiplier, rural community development, rural healthcare, employment, inpatient healthcare facilities

description: This report estimates the share of wage/salary employment in inpatient healthcare facilities—hospitals, nursing homes, and other residential care facilities—versus other industries in rural counties during 2001-15, and the spillover effects of additional inpatient facility employment, in rural counties. On average, we find no clear spillover effect of inpatient facility employment on employment in other sectors, i.e., the employment multiplier is approximately 1. The multiplier is larger in rural micropolitan counties (1.24 total jobs) than in the most rural (noncore) counties (0.89 total jobs), but neither of these estimates is significantly different from 1, implying the absence of spillovers.
America’s Diverse Family Farms: 2017 Edition
Creators: name: Hoppe, Robert
name: Hoppe, Robert
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Industrial Organization
subject: Family farms
subject: small farms
subject: retirement farms
subject: farm household income
subject: crop insurance
subject: government payments

description: This report provides an overview of U.S. farms, including the latest statistics on production, financial performance, and farm household characteristics by farm size categories. Among the findings are that 99 percent of U.S. farms are family farms, and they accounted for 90 percent of farm production in 2016.
The laser diode calibration system of the ICARUS T600 detector at FNAL
Creators: name: Bonesini, M.
name: Benocci, R.
name: Bertoni, R.
name: Falcone, A.
name: Mazza, R.
name: Torti, M.
name: Menegolli, A.
name: Raselli, G. L.
name: Rossella, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The ICARUS T600 LAr TPC is the far detector of the Short Baseline Program at FNAL. As it will have to work at shallow depth in the Booster Neutrino Beam, a large cosmic rays background ($\sim 11$ kHz) will be present. To reduce it, precise timing information is needed from the new light detection system, based on 360 large area photomultipliers. For precise time measurements a calibration system based on a fast laser diode and a system based on one optical switch, several $1 \times 10$ fused fiber splitters, ultra-high vacuum optical feedthroughs and multimode optical patchcords up to 20 m long, to distribute the laser pulses to each single PMT, was designed. The time evolution of the PMTs' gain/timing and possibly their initial calibrations at a time $t_0$ will be done by using this system. The expected time resolution of this calibration system will be around 100 ps. The laboratory tests needed to set up the system are reported.
description: Proceedings, 15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD19) : Siena, Italy, October 14-17, 2019
Robustness and External Validity: What do we Learn from Repeated Study Designs over Time?
Creators: name: Adesina, Adedoyin
name: Akogun, Oladele
name: Dillon, Andrew
name: Friedman, Jed
name: Njobdi, Sani
name: Serneels, Pieter
name: Adesina, Adedoyin
name: Akogun, Oladele
name: Dillon, Andrew
name: Friedman, Jed
name: Njobdi, Sani
name: Serneels, Pieter
Publisher: name: Unknown
Year: 2017
Subjects: Research Methods/ Statistical Methods

description: The replication of studies is foundational to the scientific method. But replication can have different meanings varying from results verification, to reproduction, to reanalysis with an alternative specification. Few studies are repeated in the same setting. Yet this may be key when environmental or other mediating factors change over time, as it may help establish validity over time or shed light on why impact changes over time. One example is the varied impact a health intervention can have, particularly when targeting infectious diseases, as disease incidence may vary across years. This paper presents the findings of a study that repeats the same health intervention in the same site in three different years, estimating the effect of malaria testing and treatment on agricultural worker earnings, labor supply and productivity. We find a significant impact on worker earnings across the years, but the impact size varies over time. The treatment on the treated estimates are lower in a year when the malaria prevalence rate is low. The ‘treatment on the medically untreated’, which captures an information and behavioral effect identified in an earlier study, is smaller in years when prevalence is lower and the possibility of substituting into and out of lower effort, lower return tasks is absent. These results underline the importance of changes in the prevalence rate as well as the worker’s labor constraints. The results demonstrate that repetition, apart from providing a useful tool for validation, can also help shed light on reasons why effects may vary over time.
A New SU UMa-Type Dwarf Nova, QW Serpentis (= TmzV46)
Creators: name: Nogami, D.
name: Uemura, M.
name: Ishioka, R.
name: Iwamatsu, H.
name: Kato, T.
name: Pavlenko, E. P.
name: Baklanov, A.
name: Novak, R.
name: Kiyota, S.
name: Tanabe, K.
name: Masi, G.
name: Cook, L. M.
name: Morikawa, K.
name: Schmeer, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of the QW Ser campaign which has been continued from 2000 to 2003 by the VSNET collaboration team. Four long outbursts and many short ones were caught during this period. Our intensive photometric observations revealed superhumps with a period of 0.07700(4) d during all four superoutbursts, proving the SU UMa nature of this star. The recurrence cycles of the normal outbursts and the superoutbursts were measured to be $\sim$50 days and 240(30) days, respectively. The change rate of the superhump period was -5.8x10^{-5}. The distance and the X-ray luminosity in the range of 0.5-2.4 keV are estimated to be 380(60) pc and log L_x = 31.0 \pm 0.1 erg s^{-1}. These properties have typical values for an SU UMa-type dwarf nova with this superhump period.
description: 9 pages, 12 figures, to appear in the VSNET special issue of PASJ
Balancing Complexity and Rent-Seeking in Multi-Attribute Conservation Procurement Auctions: Evidence from a Laboratory Experiment
Creators: name: Banerjee, Simanti
name: Conte, Marc N.
name: Banerjee, Simanti
name: Conte, Marc N.
Publisher: name: Unknown
Year: 2017
Subjects: Research Methods/ Statistical Methods

description: Conservation procurement auctions are implemented under conditions that deviate from those assumed to derive predictions of bidder behavior. Existing research has emphasized the sensitivity of auction performance and bidder behavior to auction design choices. In the conservation context, procuring agencies must decide how to provide bidders with information about the environmental quality of different conservation practices to manage the trade-off between an increased probability of selecting the optimal practice and increased rent-seeking behavior associated with this information. We utilize an induced-value laboratory experiment to explore how access to quality information and variation in the bid-submission protocol can best be combined to improve auction performance. We nd that the auction performs best when a bid-menu format, in which subjects submit bids for all their practices, is combined with information about the environmental quality rank of available conservation practices.
Revisiting the Hanbury Brown-Twiss set-up for fractional statistics
Creators: name: Vishveshwara, Smitha
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Hanbury Brown-Twiss experiment has proved to be an effective means of probing statistics of particles. Here, in a set-up involving edge-state quasiparticles in a fractional quantum Hall system, we show that a variant of the experiment composed of two sources and two sinks can be used to unearth fractional statistics. We find a clear cut signature of the statistics in the equal-time current-current correlation function for quasiparticle currents emerging from the two sources and collected at the sinks.
description: 4 pages, 3 figures
A COMPARISON OF RESULTS WITH DIFFERENT MODELS USED TO ALLOCATE IRRIGATION WATER
Creators: name: Pansegrouw, J. P.
name: Groenewald, J. A.
name: Pansegrouw, J. P.
name: Groenewald, J. A.
Publisher: name: Unknown
Year: 1987
Subjects: Research and Development/Tech Change/Emerging Technologies
Resource /Energy Economics and Policy

description: Models according to which irrigation water can be allocated among areas were compared: The incremental benefit/ cost model, based upon a predetermined cropping pattern (as used by the Department of Water Affairs and based upon data of the Department of Agriculture and Water Supply), a linear programming model taking the same cropping pattern as given, and linear programming models in which crop selection and water allocation are optimized simultaneously. Results indicate that models aimed at simultaneous optimization yield results that are economically superior to models based on fixed cropping patterns.
A new comprehensive study of the 3D random-field Ising model via sampling the density of states in dominant energy subspaces
Creators: name: Fytas, Nikolaos G.
name: Malakis, Anastasios
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The three-dimensional bimodal random-field Ising model is studied via a new finite temperature numerical approach. The methods of Wang-Landau sampling and broad histogram are implemented in a unified algorithm by using the N-fold version of the Wang-Landau algorithm. The simulations are performed in dominant energy subspaces, determined by the recently developed critical minimum energy subspace technique. The random fields are obtained from a bimodal distribution, that is we consider the discrete $(\pmΔ)$ case and the model is studied on cubic lattices with sizes $4\leq L \leq 20$. In order to extract information for the relevant probability distributions of the specific heat and susceptibility peaks, large samples of random field realizations are generated. The general aspects of the model's scaling behavior are discussed and the process of averaging finite-size anomalies in random systems is re-examined under the prism of the lack of self-averaging of the specific heat and susceptibility of the model.
description: 10 pages, 4 figures, presented at the third NEXT Sigma Phi International Conference, Kolymbari, Greece (2005)
AN OPINION SURVEY ON ASPECTS OF BEEF MARKETING IN SOUTH AFRICA
Creators: name: Elliott, M. B.
name: Nieuwoudt, W. L.
name: Lyne, M. C.
name: Elliott, M. B.
name: Nieuwoudt, W. L.
name: Lyne, M. C.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: An opinion survey was carried out on 178 beef farmers, using the two-stage sampling technique. Survey results were analysed using a computer program developed at the University of Natal. The estimates derived pertain to all South African beef farmers. Results show that, while the average beef producer is close to a country auction (22 km), the distance to the nearest Abattoir Corporation facility is considerable (345 km). Preference is expressed for many small abattoirs situated in production areas, as opposed to a few large abattoirs in consumption areas. Farmers experience greatest difficulty in obtaining quotas and permits during April and December.
The utilization of small diameter Douglas fir : the viability of the log furniture market
Creators: name: Cadwaladr, Dan I.
name: Mc. Grady, Ian
Publisher: name: The University of British Columbia
Year: 2014

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
A Super-Flag Landau Model
Creators: name: Ivanov, Evgeny
name: Mezincescu, Luca
name: Townsend, Paul K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the quantum mechanics of a particle on the coset superspace $SU(2|1)/[U(1)\times U(1)]$, which is a super-flag manifold with $SU(2)/U(1)\cong S^2$ `body'. By incorporating the Wess-Zumino terms associated with the $U(1)\times U(1)$ stability group, we obtain an exactly solvable super-generalization of the Landau model for a charged particle on the sphere. We solve this model using the factorization method. Remarkably, the physical Hilbert space is finite-dimensional because the number of admissible Landau levels is bounded by a combination of the U(1) charges. The level saturating the bound has a wavefunction in a shortened, degenerate, irrep of $SU(2|1)$.
Artificial Intelligence and Copula-Probabilistic Models for Early Flood Warning and Community Risk Management: Case Studies in Fiji Islands
Creators: name: Chand, Ravinesh
Publisher: name: University of Southern Queensland
Year: 2024
Subjects: flood characteristics
flood monitoring
hourly flood index
vine copulas
hourly flood forecasting
deep learning

description: Flooding is one of the most prevalent natural hazards, impacting numerous regions worldwide. The repercussions of such disasters are especially severe in developing nations, particularly in small island countries like Fiji. The absence of advanced flood risk monitoring resources and relevant data in these developing nations presents significant challenges to implementing effective early flood warning systems. To address this issue, this research develops innovative flood monitoring, assessment, and forecasting tools using artificial intelligence (AI) and copulastatistical methods to enhance and contribute to developing effective early flood warning systems, thereby assisting in better flood preparation and management strategies to mitigate the severe impacts of flooding. The first objective is to develop a novel hourly flood monitoring index (SWRI24-hr-S) to identify flood events and compute their associated characteristics, including flood volume (V), duration (D) and peak (Q). The feasibility of this index as an hourly flood risk monitoring tool is demonstrated for various flood-prone sites in Fiji. The 3-dimensional (3D) vine copula model is employed to model the joint distribution between D, V, and Q to extract their joint exceedance probability for probabilistic flood risk assessment across these study sites. In the second objective, a hybrid deep learning model (C-GRU) is designed by fusing the Convolutional Neural Network (CNN) with the Gated Recurrent Unit (GRU) model to forecast the proposed SWRI24-hr-S over a short-term (i.e., 1-hourly forecast horizon) to assess the future flood risk for five flood-prone study sites in Fiji. The objective model is trained using the statistically significant lagged SWRI24-hr-S and realtime hourly rainfall data. The state-of-the-art models, i.e., CNN, GRU, Long Short- Term Memory (LSTM), and Random Forest Regression (RFR), were also developed for benchmarking. The hyperparameters of the objective and benchmarking models were optimised using the efficient Bayesian Optimization (BO) technique. Overall, the outcomes of this research are expected to assist Fiji and other flood-prone regions worldwide in enhancing their existing early flood warning systems by integrating the flood monitoring, assessment, and forecasting tools developed in this study. This integration will enhance the decision-support framework for flood preparedness and response efforts, thus mitigating the severe impacts of flooding and improving community risk management.