cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of worker flows in the dynamics and distribution of UK unemployment
Creators: name: Elsby, Michael W. L.
name: Smith, Jennifer C.
name: Wadsworth, Jonathan
name: Elsby, Michael W. L.
name: Smith, Jennifer C.
name: Wadsworth, Jonathan
Publisher: name: Unknown
Year: 2010
Subjects: subject: Financial Economics
subject: labour market
subject: unemployment
subject: worker flows

description: Unemployment varies substantially over time and across subgroups of the labour market. Worker flows among labour market states act as key determinants of this variation. We examine how the structure of unemployment across groups and its cyclical movements across time are shaped by changes in labour market flows. Using novel estimates of flow transition rates for the UK over the last 35 years, we decompose unemployment variation into parts accounted for by changes in rates of job loss, job finding and flows via non-participation. Close to two-thirds of the volatility of unemployment in the UK over this period can be traced to rises in rates of job loss that accompany recessions. The share of this inflow contribution has been broadly the same in each of the past three recessions. Decreased job-finding rates account for around one-quarter of unemployment cyclicality and the remaining variation can be attributed to flows via non-participation. Digging deeper into the structure of unemployment by gender, age and education, the flow-approach is shown to provide a richer understanding of the unemployment experiences across population subgroups.
IMPROVING THE QUALITY OF AIR POLLUTION CONTROL AT LIGHT INDUSTRY ENTERPRISES
Creators: name: Bokanova, A.
name: Matayev, U.
name: Abishova, A.
name: Yermakhanova, F.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: air purification
corona discharge
volumetric charge
current
measurement range
accuracy.

description: The article discusses the issues of air purification in dusty workshops of the textile industry. Increasing the efficiency of air purification is achieved by the fact that a method for monitoring the dustiness of premises has been developed, providing high accuracy and a wide range of measurements, The method is implemented in a device in which corona discharge sections of different polarities are created and connected in series: in the first section, dusty air is charged in a negative volumetric charge of the corona discharge, in the second section, the flow of dusty air is discharged in a positive volumetric charge of the corona discharge. The degree of dustiness is determined by the value of the discharge current in the common circuit.
The IGEX experiment revisited: a response to the critique of Klapdor-Kleingrothaus,Dietz, and Krivosheina
Creators: name: Aalseth, C. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This paper is a response to the article "Critical View to" the IGEX neutrinoless double-beta decay experiment..."published in Phys. Rev.D, Volume 65 (2002) 092007," by H.V.Klapdor-Kleingrothaus, A. Dietz, and I.V.Krivosheina, published as preprint hep-ph/0403056. The criticisms are confronted, and the questions raised are answered. We demonstrate that the lower limit quoted by IGEX, for the half life of Ge-76 neutrinoless double beta decay, 1.57x10**25 y, is correct and that there was no "arithmetical error"-as claimed in the " Critical Review" article.
Doublon-hole correlations and fluctuation thermometry in a Fermi-Hubbard gas
Creators: name: Hartke, Thomas
name: Oreg, Botond
name: Jia, Ningyuan
name: Zwierlein, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on the single atom and single site-resolved detection of the total density in a cold atom realization of the 2D Fermi-Hubbard model. Fluorescence imaging of doublons is achieved by splitting each lattice site into a double well, thereby separating atom pairs. Full density readout yields a direct measurement of the equation of state, including direct thermometry via the fluctuation-dissipation theorem. Site-resolved density correlations reveal the Pauli hole at low filling, and strong doublon-hole correlations near half filling. These are shown to account for the difference between local and non-local density fluctuations in the Mott insulator. Our technique enables the study of atom-resolved charge transport in the Fermi-Hubbard model, the site-resolved observation of molecules, and the creation of bilayer Fermi-Hubbard systems.
description: 9 pages, 10 figures
Nonclassical Measurement Error in a Nonlinear (Duration) Model
Creators: name: Gutknecht, Daniel
name: Gutknecht, Daniel
Publisher: name: Unknown
Year: 2011
Subjects: subject: Financial Economics
subject: Nonclassical Measurement Error
subject: Dependent Variable
subject: Control Function
subject: Rank Estimator

description: In this paper, we study nonclassical measurement error in the continuous dependent variable of a semiparametric transformation model. The latter is a popular choice in practice nesting various nonlinear duration and censored regression models. The main complication arises because we allow the (additive) measurement error to be correlated with a (continuous) component of the regressors as well as with the true, unobserved dependent variable itself. This problem has not yet been studied in the literature, but we argue that it is relevant for various empirical setups with mismeasured, continuous survey data like earnings or durations. We develop a framework to identify and consistently estimate (up to scale) the parameter vector of the transformation model. Our estimator links a two-step control function approach of Imbens and Newey (2009) with a rank estimator similar to Khan (2001) and is shown to have desirable asymptotic properties. We prove that ‘m out of n’ bootstrap can be used to obtain a consistent approximation of the asymptotic variance and study the estimator’s finite sample performance in a Monte Carlo Simulation. To illustrate the empirical usefulness of our procedure, we estimate an earnings equation model using annual data from the Health and Retirement Study (HRS). We find some evidence for a bias in the coefficients of years of education and age, emphasizing once again the importance to adjust for potential measurement error bias in empirical work.
RECOMMENDATIONS FOR IMPROVING LOGISTICS SUPPORT OF COMBINED ARMS FORCE WHILE PERFORMING ASSIGNED TASKS
Creators: name: Baranov Yu.
name: Baranov, A.
name: Zirkevych, V.
name: Shpak, S.
name: Kolotelo, P.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: combined arms force
logistics support
material assets
means of mechanization
loading and unloading operations.

description: The article is prepared on a topical issue, which is related to improving the efficiency of logistics management of the combined arms force. To this end, recommendations have been developed on the procedure for determining the scope of loading and unloading operations during transportation and evacuation of material assets of the combined arms force units while performing the assigned tasks.
Apalonia (Alopania) guycurticornis Pace 2015, spec. nov.
Creators: name: Pace, Roberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apalonia
Apalonia guycurticornis

description: Apalonia (Alopania) guycurticornis spec. nov.
(Figg. 30, 121–123)
 Materiale tipico: Holotypus , Guyane Fr., Saramaka, 13.XI.2011, leg. T. Struyve (SDEI).
Paratypi: 5 es., stessa provenienza (IRSNB).
 Descrizione: Lunghezza 2,5 mm. Corpo lucido e nerobruno, con i due uroterghi liberi basali e il pigidio bruni; antenne brune con i due antennomeri basali e la base del terzo rossicci; zampe giallo-rossicce. Occhi, in visione dorsale, più lunghi della regione postoculare. Secondo antennomero più breve del primo, terzo lungo quanto il secondo, dal quarto al decimo trasversi. Reticolazione dell’avancorpo forte, quella dell’addome poligonale, irregolare, evidente ma, sul quinto urotergo libero, molto trasversa. Granulosità di capo e pronoto fitta e superficiale. Punteggiatura delle elitre fitta ed evidente, quella dell’addome fitta e superficiale. Disco del capo impresso. Edeago come in Figg. 122–123, spermateca come in Fig. 121.
 Etimologia: Il nome della nuova specie significa “Antenne corte della Guyana Francese ”.
description: Published as part of Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), pp. 131-156 in Beiträge Zur Entomologie = Contributions to Entomology 65 (1) on page 142, DOI: 10.21248/contrib.entomol.65.1.75-84, http://zenodo.org/record/4753790
Inceptive Event Time-Surfaces for Object Classification Using Neuromorphic Cameras
Creators: name: Baldwin, R Wes
name: Almatrafi, Mohammed
name: Kaufman, Jason R
name: Asari, Vijayan
name: Hirakawa, Keigo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a novel fusion of low-level approaches for dimensionality reduction into an effective approach for high-level objects in neuromorphic camera data called Inceptive Event Time-Surfaces (IETS). IETSs overcome several limitations of conventional time-surfaces by increasing robustness to noise, promoting spatial consistency, and improving the temporal localization of (moving) edges. Combining IETS with transfer learning improves state-of-the-art performance on the challenging problem of object classification utilizing event camera data.
Political environment and attraction of foreign direct investment: an institutionalist approach
Creators: name: Borba, Eduardo Henrique De
name: Pereira, Ana Paula Menezes
Publisher: name: figshare
Year: 2020
Subjects: subject: 140210 International Economics and International Finance
subject: FOS: Economics and business

description: DOI: 10.6084/m9.figshare.12032742 - The study examines the relationship between the quality of the institutional arrangements of political environment and the attraction of foreign direct investment (FDI). Panel models were estimated for 123 countries from 2011 to 2016, where the dependent variable was the FDI net inflows, explained by two institutional variables related to the political dimension. Due to the strong correlation between the institutional variables, they were evaluated in separate models, in addition to versions with and without the use of instruments. The results suggest that the quality of the institutional arrangements of the political environment is essential to attract FDI.
Apalonia approuagensis Pace 2015, spec. nov.
Creators: name: Pace, Roberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apalonia
Apalonia approuagensis

description: Apalonia approuagensis spec. nov.
(Figg. 35, 132–133)
 Materiale tipico: Holotypus , Guyane Fr., Barrage Petit Saut, 10.XI.2011, leg. T. Struyve (IRSNB).
 Descrizione: Lunghezza 2,7 mm. Corpo lucido, con capo e pronoto rossicci, elitre e uroterghi liberi terzo e quarto bruni, base dell’addome e pigidio giallo-rossicci; antenne nere con i due antennomeri basali, la base del terzo e l’undicesimo giallo-rossicci; zampe giallo-rossicce con i femori posteriori macchiati di bruno. Occhi, in visione dorsale, più lunghi della regione postoculare. Secondo antennomero più breve del primo, terzo più lungo del secondo, dal quarto al nono più lunghi che larghi, decimo lungo quanto largo. Reticolazione del capo evidente, quella del resto del corpo non visibile. Granulosità del capo superficiale, quella di pronoto ed elitre fitta ed evidente, quella dell’addome visibile solo al margine posteriore di ciascun urotergo libero. Solco frontale breve. Edeago come da Figg. 132–133.
 Etimologia: La nuova specie prende il nome dal fiume Approuague della Guyana Francese.
description: Published as part of Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), pp. 131-156 in Beiträge Zur Entomologie = Contributions to Entomology 65 (1) on page 143, DOI: 10.21248/contrib.entomol.65.1.75-84, http://zenodo.org/record/4753790
REGISTRATION OF SIGNALS OF LASER EMITTER. TEST EXPERIMENT
Creators: name: Vаnkevych, P.
name: Dehtiarenko, V.
name: Drobenko, B.
name: Іvanyk, E.
name: Smychok, V.
name: Chernenko А.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: electromagnetic radiation
lasers devices
linear dispersion environment
experimental setting of registration of signals of laser emitter
optical fiber fabric.

description: The test experiment is conducted in the article, which enables to verify clarification of high-quality predictions in relation to registration of laser emitter (quantum range-finder) signals, working in an infra-red range with a wave-length equal 1.06 µm.
Electrochemistry for neurochemical analysis
Creators: name: Ross, Ashley E.
name: Zestos, Alexander
Publisher: name: Springer-Verlag GmbH Germany
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3401
subject: Analytical chemistry

description: Analytical and Bioanalytical Chemistry, Volume 413, Issue 27, Pages 6687 - 6688, November 2021.
Multiplexing neurochemical detection with carbon fiber multielectrode arrays using fast-scan cyclic voltammetry
Creators: name: Rafi, Harmain
name: Zestos, Alexander
Publisher: name: American University
Year: 2023

description: Carbon fiber microelectrodes (CFMEs) have been extensively used to measure neurotransmitters with fast-scan cyclic voltammetry (FSCV) due to their ability to adsorb cationic monoamine neurotransmitters. Although FSCV, in tandem with CFMEs, provides high temporal and spatial resolution, only single-channel potentiostats and electrodes have been primarily utilized. More recently, the need and use of carbon fiber multielectrode arrays has risen to target multiple brain regions. Previous studies have shown the ability to detect dopamine using multielectrode arrays; however, they are not readily available to the scientific community. In this work, we interfaced a carbon fiber multielectrode array (MEA or multielectrode array), to a commercially available four-channel potentiostat for multiplexing neurochemical measurements. The MEA’s relative performance was compared to single CFMEs where dopamine detection was found to be adsorption controlled to the electrode’s surface. Multiple waveforms were applied to each fiber of the multielectrode array simultaneously to detect different analytes on each electrode of the array. A proof of concept ex vivo experiment showed that the multielectrode array could record redox activity in different areas within the mouse caudate putamen and detect dopamine in a 3-mm2 area. To our knowledge, this is the first use of the multielectrode array paired with a commercially available multichannel potentiostat for multi-waveform application and neurotransmitter co-detection. This novel array may aid in future studies to better understand complex brain heterogeneity, the dynamic neurochemical environment, and how disease states or drugs affect separate brain areas concurrently.
Apalonia (Alopania) guymaculiventris Pace 2015, spec. nov.
Creators: name: Pace, Roberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apalonia
Apalonia guymaculiventris

description: Apalonia (Alopania) guymaculiventris spec. nov.
(Figg. 26, 109–111)
 Materiale tipico: Holotypus , Guyane Fr., Caussade, 7.XI.2011, leg. T. Struyve (SDEI).
Paratypi: 5 es., stessa provenienza; 2 , Guyane Fr., Barrage Petit Saut, 10.XI.2011, leg. T. Struyve (IRSNB).
 Descrizione: Lunghezza 2,7 mm. Corpo lucido e giallo-rossiccio, con capo, disco delle elitre e quarto urotergo libero, bruni; antenne giallo-rossicce con antennomeri dall’ottavo all’undicesimo giallo pallido; zampe giallo-rossicce. Occhi, in visione dorsale, più lunghi della regione postoculare. Secondo antennomero più breve del primo, terzo più lungo del secondo, quarto lungo quanto largo, dal quinto al decimo trasversi. Reticolazione dell’avancorpo molto superficiale, quella dell’addome molto trasversa solo sui tre uroterghi liberi basali, sul resto dell’addome non visibile. Punteggiatura di capo e pronoto non visibile, quella delle elitre fine ed evidente. Granulosità dell’addome visibile solo al margine posteriore di ciascun urotergo libero. Edeago come in Figg. 109–110, spermateca come in Fig. 111.
 Etimologia: Il nome della nuova specie significa “Addome macchiato della Guyana Francese ”.
description: Published as part of Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), pp. 131-156 in Beiträge Zur Entomologie = Contributions to Entomology 65 (1) on page 141, DOI: 10.21248/contrib.entomol.65.1.75-84, http://zenodo.org/record/4753790
Multiplexing neurochemical detection with carbon fiber multielectrode arrays using fast-scan cyclic voltammetry
Creators: name: Rafi, Harmain
name: Zestos, Alexander
Publisher: name: Springer-Verlag GmbH Germany
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3401
subject: Analytical chemistry

description: Carbon fiber microelectrodes (CFMEs) have been extensively used to measure neurotransmitters with fast-scan cyclic voltammetry (FSCV) due to their ability to adsorb cationic monoamine neurotransmitters. Although FSCV, in tandem with CFMEs, provides high temporal and spatial resolution, only single-channel potentiostats and electrodes have been primarily utilized. More recently, the need and use of carbon fiber multielectrode arrays has risen to target multiple brain regions. Previous studies have shown the ability to detect dopamine using multielectrode arrays; however, they are not readily available to the scientific community. In this work, we interfaced a carbon fiber multielectrode array (MEA or multielectrode array), to a commercially available four-channel potentiostat for multiplexing neurochemical measurements. The MEA’s relative performance was compared to single CFMEs where dopamine detection was found to be adsorption controlled to the electrode’s surface. Multiple waveforms were applied to each fiber of the multielectrode array simultaneously to detect different analytes on each electrode of the array. A proof of concept ex vivo experiment showed that the multielectrode array could record redox activity in different areas within the mouse caudate putamen and detect dopamine in a 3-mm2 area. To our knowledge, this is the first use of the multielectrode array paired with a commercially available multichannel potentiostat for multi-waveform application and neurotransmitter co-detection. This novel array may aid in future studies to better understand complex brain heterogeneity, the dynamic neurochemical environment, and how disease states or drugs affect separate brain areas concurrently.
Centre for sustainable food systems at UBC Farm : local food procurement on campus
Creators: name: Duffield, Blair
name: Edwards, Lacey
name: Lupieri, Diana
name: May, Michael
name: Sun, Liheng
Publisher: name: The University of British Columbia
Year: 2015

description: Local Food Procurement on Campus is part of the UBC Centre For Sustainable Food Systems’ Road Map to Action project, “Scaling Up: Bringing local to a global campus.” This project seeks to give a broad view of local food procurement at UBC, particularly insofar as the involvement of the SEEDS program is concerned, and identify past and present challenges. This report approaches these objectives with a combined approach, featuring a review of past SEEDS projects, interviews with key actors in the UBC food system, and a brief look at local food procurement at other postsecondary institutions. The insights gained from this threefold approach are discussed and analyzed to identify what we consider to be the two main obstacles currently facing local food procurement at UBC and to produce recommendations on how stakeholders may consider approaching these issues. This report considers seasonality and associated availability issues, and lack of consumer demand/awareness of local food on campus, to be the two main barriers to local food procurement at UBC. These barriers represent complex issues, which may be unpacked to reveal simpler, more manageable challenges. Through our research and analysis of our findings, we were able to outline recommendations to address these challenges. It is our hope that these recommendations will serve to facilitate increased food procurement at UBC going forward, and inform future research in this area. 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.”
title: Case of Amyand Hernia
Creators: name: Burnside, Stephen
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Anatomy
subject: Gastrointestinal tract
subject: CT
subject: Clinical Cases

description: Clinical History: An 86-year-old male presented acutely with six month history of unintentional weight loss, constipation and right-sided abdominal mass. Clinical examination identified a non-reducible, non-tender, right iliac fossa mass not extending into the scrotum. Haemoglobin 146g/L. Ferritin 293ug/L. CEA 3.9ng/mL.

description: 86 years, male
Neural Basis of Scale Errors in Young Children
Creators: name: Ishibashi, Mikako
name: Moriguchi, Yusuke
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: In this study, we examined whether 2-and 3-year-old children exhibited activation in the dorsolateral and ventrolateral prefrontal regions while engaging in a tool-based scale error task as measured by near-infrared spectroscopy. Results revealed no significant differences in the prefrontal activation between children who produced scale errors and those who did not. However, we found significant activations of the prefrontal region during scale error sessions compared to free play sessions. Our results do not deny that the activation of prefrontal regions may, at least in part, be associated with children’s scale error.
THE RESULTS OF RESEARCH AND PRODUCTION EVALUATION OF POSSIBLE WAYS TO REDUCE THE COST OF CROP PRODUCTION
Creators: name: Shirokov Yu.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: agriculture
crop production
cost
yield
cost structure.

description: The article shows methodological approaches and the possibilities of analyzing and choosing options for reducing the main costs of crop production. The author, based on the generalization of production experience in various regions of Russia and the analysis of research conducted jointly with a number of leading agricultural institutes, notes that the cost of crop production decreases only to a certain level of yield increase, and then the pattern is violated: the cost begins to grow. The possible directions and boundaries of reducing the main components of the cost are shown.
Gravitational and electromagnetic fields near an anti-de Sitter-like infinity
Creators: name: Krtous, Pavel
name: Podolsky, Jiri
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyze asymptotic structure of general gravitational and electromagnetic fields near an anti-de Sitter-like conformal infinity. Dependence of the radiative component of the fields on a null direction along which the infinity is approached is obtained. The directional pattern of outgoing and ingoing radiation, which supplements standard peeling property, is determined by the algebraic (Petrov) type of the fields and also by orientation of principal null directions with respect to the timelike infinity. The dependence on the orientation is a new feature if compared to spacelike infinity.
description: 4 pages, 2 figures
title: The physiological basis and consequences for nitrate leaching of novel fertiliser strategies involving foliar fertilisation of wheat
Creators: name: Readman, Russell J.
Publisher: name: The Open University
Year: 1996

description: Supplying a proportion of the N requirement of a wheat crop via the foliage would potentially reduce immobilisation of fertiliser N in the soil organic matter and losses by leaching or denitrification.

A field experiment to investigate the effects on crop yield, N recovery and nitrate leaching of supplying the main spring N application to winter wheat as different proportions of foliar urea rather than as soil applied ammonium nitrate was repeated on the same site over three years. In year two, for selected treatments in the main experiment, recovery of 15N-labelled nitrogen in the plant and soil was recorded. Experiments were conducted to investigate interception by the foliage, and the effect of timing and rate of N applied.

N as foliar urea produced similar yields to N applied conventionally to the soil as solid ammonium nitrate or urea over a range of rates of N applied. Early application of foliar urea increased above ground dry matter production and had little effect on harvest index, later applications reduced above ground dry matter production and increased harvest index. The effect of foliar urea on above ground dry matter production was due to increased green area index at anthesis, owing to increased leaf expansion.

Apparent recoveries indicated that gaseous losses, most likely by volatilisation, can be im portant for high rates of N applied as foliar urea under warm windy conditions. Applied under cooler conditions likely to inhibit gaseous losses however, true recovery o f fertiliser N in the crop-soil system was similar to that for N applied to the soil as solid ammonium nitrate or urea.

Exploiting the potential for increased physiological N use efficiency as indicated and controlling gaseous losses would potentially reduce N losses.
X-ray Observations of Stellar Clusters Near the Galactic Center
Creators: name: Law, C.
name: Yusef-Zadeh, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the first detection of X-ray emission from the Quintuplet star cluster and compare its X-ray emission to that of the Arches star cluster. Four point sources are significantly detected near the core of the Quintuplet cluster with a total, absorption-corrected luminosity of ~1\times10^{33} ergs s^{-1}. Diffuse, thermal emission is also detected near the core of the Quintuplet cluster with an absorption-corrected luminosity of ~1\times10^{34} ergs s^{-1}. We analyze the diffuse and point-like emission from the Arches and Quintuplet and discuss the possibility that they are host to cluster wind outflows. We also present the results of our search for X-ray emission from candidate star clusters in the Galactic center (GC) region. We use extinction estimated by near-IR colors and X-ray spectral fits, as well as other IR properties, to determine if the candidate clusters are new, GC star clusters. We find that three of the six candidate clusters found toward the GC are likely foreground clusters, two of the candidate clusters are not detected in the X-ray data, but have near-IR extinctions consistent with a GC location, and one of the candidate clusters has X-ray and near-IR extinctions consistent with being in the GC. The X-ray and IR emission from the candidate clusters is compared to the known, massive, GC star clusters.
description: Accepted to ApJ. 30 pages, 7 figures
Quantifying efficient information exchange in real network flows
Creators: name: Bertagnolli, Giulia
name: Gallotti, Riccardo
name: De Domenico, Manlio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Network science enables the effective analysis of real interconnected systems, characterized by a complex interplay between topology and interconnections strength. It is well-known that the topology of a network affects its resilience to failures or attacks, as well as its functions. Exchanging information is crucial for many real systems: the internet, transportation networks and the brain are key examples. Despite the introduction of measures of efficiency to analyze network flows, i.e. topologies characterized by weighted connectivity, here we show that they fail to capture combined information of link existence and link weight. In this letter we propose a physically-grounded estimator of flow efficiency which can be computed for every weighted network, regardless from the scale and nature of weights and from any (missing) metadata. Remarkably, results show that our estimator captures the heterogeneity of flows along with topological differences and its complement information obtained from percolation analysis of several empirical systems, including transportation, trade, migrations, and brain networks. We show that cutting the heaviest connections may increase the average communication efficiency of the system and hence, counterintuively, a sparser network is not necessarily less efficient. Remarkably, our estimator enables the comparison of communication efficiency of networks arising from different fields, without the possible pitfalls deriving from the scale of flow.
Apalonia perdentata Pace 2015, spec. nov.
Creators: name: Pace, Roberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apalonia
Apalonia perdentata

description: Apalonia perdentata spec. nov.
(Figg. 32, 125–127)
 Materiale tipico: Holotypus , Guyane Fr., Coralie, 15.XI.2011, leg. T. Struyve (SDEI).
 Descrizione: Lunghezza 2 mm. Corpo lucido e bruno, con primo urotergo libero giallo, quarto e quinto neri; antenne brune, con i due antennomeri basali e l’undicesimo giallo-rossicci; zampe gialle con femori macchiati di bruno. Occhi, in visione dorsale, più brevi della regione postoculare. Secondo antennomero più breve del primo, terzo lungo quanto il secondo, quarto lungo quanto largo, dal quinto al decimo trasversi. Reticolazione del corpo non visibile. Punteggiatura del capo fitta e molto superficiale, quella del pronoto fine e poco evidente. Granulosità delle elitre poco fitta e saliente, quella dell’addome visibile solo al margine posteriore di ciascun urotergo libero. Uroterghi liberi del maschio primo e secondo con un granulo mediano poco evidente, quinto con granulo mediano e strie marginali posteriori. Edeago come in Figg. 125–126, sesto urotergo libero del maschio come in Fig. 127.
 Etimologia: Il nome della nuova specie significa “Molto dentata”, per la presenza di denti molto sviluppati sul margine posteriore del sesto urotergo libero del maschio.
description: Published as part of Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), pp. 131-156 in Beiträge Zur Entomologie = Contributions to Entomology 65 (1) on page 142, DOI: 10.21248/contrib.entomol.65.1.75-84, http://zenodo.org/record/4753790
Homogeneous nucleation rate of carbon dioxide hydrate formation under experimental condition from Seeding simulations
Creators: name: Zerón, I. M.
name: Algaba, J.
name: Míguez, J. M.
name: Grabowska, J.
name: Blazquez, S.
name: Sanz, E.
name: Vega, C.
name: Blas, F. J.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the nucleation of carbon dioxide (CO$_2$) hydrates from carbon dioxide aqueous solutions by means of molecular dynamics simulations using the TIP4P/Ice and the TraPPE models for water and CO$_2$ respectively. We work at 400 bar and different temperatures and CO$_2$ concentrations. We use brute force molecular dynamics when the supersaturation or the supercooling are so high so that nucleation occurs spontaneously and Seeding otherwise. We used both methods for a particular state and we get a rate of 10$^{25}\,\text{m}^{-3}\text{s}^{-1}$ for nucleation in a CO$_2$ saturated solution at 255 K (35 K of supercooling). By comparison with our previous work on methane hydrates, we conclude that nucleation of CO$_2$ hydrates is several orders of magnitude faster due to a lower interfacial free energy between the crystal and the solution. By combining our nucleation studies with a recent calculation of the hydrate-solution interfacial free energy at coexistence, we obtain a prediction of the nucleation rate temperature dependence for CO$_{2}$-saturated solutions (the experimentally relevant concentration). On the one hand, we open the window for comparison with experiments for supercooling larger than 25 K. On the other hand, we conclude that homogeneous nucleation is impossible for supercooling lower than 20 K. Therefore, nucleation must be heterogeneous in typical experiments where hydrate formation is observed at low supercooling. To assess the hypothesis that nucleation occurs at the solution-CO$_2$ interface we run spontaneous nucleation simulations in two-phase systems and find, by comparison with single-phase simulations, that the interface does not affect hydrate nucleation, at least at the deep supercooling at which this study was carried out (40 and 45 K). Overall, our work sheds light on molecular and thermodynamic aspects of hydrate nucleation.
description: 20 pages, 15 figures, 3 tables
Black holes in the four-dimensional Einstein-Lovelock gravity
Creators: name: Konoplya, R. A.
name: Zhidenko, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A $(3+1)$-dimensional Einstein-Gauss-Bonnet theory of gravity has been recently formulated in [D. Glavan and C. Lin, Phys. Rev. Lett. {\bf 124}, 081301 (2020)] which is different from the pure Einstein theory, i.e., bypasses the Lovelock's theorem and avoids Ostrogradsky instability. The theory was formulated in $D > 4$ dimensions and its action consists of the Einstein-Hilbert term with a cosmological constant, while the Gauss-Bonnet term multiplied by a factor $1/(D-4)$. Then, the four-dimensional theory is defined as the limit $D \to 4$. Here we generalize this approach to the four-dimensional Einstein-Lovelock theory and formulate the most general static $4D$ black-hole solution allowing for a $Λ$-term (either positive or negative) and the electric charge $Q$. As metric functions cannot be found in a closed form in the general case, we develop and share publicly the code which constructs the metric functions for every given set of parameters.
description: 5 pages, 1 ancillary Mathematica(R) notebook
title: A spectroscopy-constraint network for fast thermochemical process monitoring using wavelength modulation spectroscopy
Creators: name: Xia, Jiangnan
name: Zhang, Rui
name: Ahmed, Ihab
name: Pourkashanian, Mohamed
name: Armstrong, Ian
name: Lengden, Michael
name: Johnstone, Walter
name: McCann, Hugh
name: Liu, Chang
Publisher: name: Strathprints - University of Strathclyde
Year: 2025

description: Performance optimization of various combustion-based power generation systems requires fast and accurate online monitoring of their thermochemical parameters. As an in situ sensing technology, laser absorption spectroscopy (LAS) with modulated wavelength, has been widely adopted. However, rapid parameters retrieval from modulated LAS signal can be challenging due to the underlying complex and non-linear spectroscopy model. Most existing acceleration algorithms utilize supervised neural networks in an end-to-end manner ignored constraints on the spectroscopic model constraint. In addition, most state-of-the-art neural networks exhibit complicated structures with low computation efficiency. In this work, we developed a spectroscopy-constraint neural network for rapid thermochemical parameters extraction. The laser spectroscopic model is integrated in the proposed network through an encoder-decoder structure, offering independency on synthetic labeled dataset and hence enhance its performance on measurement thermochemical parameters in industrial scenarios. Furthermore, the developed network has a simple structure and lightweight parameter size. A case study of an aircraft engine exhaust monitoring is presented. The proposed model effectively reveals the dynamic behaviors of the engine. Compared with two representative supervised models, the new model exhibits better performance on spectral recovery as well as higher computational efficiency.
Magnetic Susceptibility of Multiorbital Systems
Creators: name: Kubo, Katsunori
name: Hotta, Takashi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Effects of orbital degeneracy on magnetic susceptibility in paramagnetic phases are investigated within a mean-field theory. Under certain crystalline electric fields, the magnetic moment consists of two independent moments, e.g., spin and orbital moments. In such a case, the magnetic susceptibility is given by the sum of two different Curie-Weiss relations, leading to deviation from the Curie-Weiss law. Such behavior may be observed in d- and f-electron systems with t_{2g} and Gamma_8 ground states, respectively. As a potential application of our theory, we attempt to explain the difference in the temperature dependence of magnetic susceptibilities of UO_2 and NpO_2.
description: 4 pages, 3 figures
Unrealized potential from smaller institutions : four strategies for advancing STEM diversity
Creators: name: Jayabalan, Monessha
name: Caballero, Madeline E.
name: Cordero, Alyssa D.
name: White, Brandyn M.
name: Asalone, Kathryn Celestia
name: Moore, Madison M.
name: Irabor, Esohe G.
name: Watkins, Shari E.
name: Walters-Conte, Kathryn
name: Taraboletti, Alexandra
name: Hartings, Matthew
name: Chow, Brenda Y.
name: Saeed, Bushra A.
name: Bracht, Kathryn A.
name: Bracht, John
Publisher: name: American University
Year: 2023

description: Diversity within science, technology, engineering, and mathematics (STEM) remains disturbingly low. Relative to larger, highly funded universities, smaller schools harbor more diverse student demographics and more limited resources. Here, we propose four strategies leveraging the unique advantages of smaller institutions to advance underrepresented scholars along STEM pathways.
Boulware state and semiclassical thermodynamics of black holes in a cavity
Creators: name: Zaslavskii, O. B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A black hole, surrounded by a reflecting shell, acts as an effective star-like object with respect to the outer region that leads to vacuum polarization outside, where the quantum fields are in the Boulware state. We find the quantum correction to the Hawking temperature, taking into account this circumstance. It is proportional to the integral of the trace of the total quantum stress-energy tensor over the whole space from the horizon to infinity. For the shell, sufficiently close to the horizon, the leading term comes from the boundary contribution of the Boulware state.
description: 7 pages. To appear in Phys. Rev. D
PREDISPOSING FACTORS FOR THE DEVELOPMENT OF ACUTE LARYNGITIS
Creators: name: Sabirova, Shakhlo
name: Samieva, Gulnoza
name: Bakiyev, Shavkatbek
Publisher: name: Zenodo
Year: 2024

description: Acute laryngitis is an acute inflammation of the mucous membrane of the larynx. This disease can be both independent and a manifestation of some infectious diseases (ARVI, influenza, whooping cough, etc.) or general somatic diseases (rheumatism, gout, blood diseases). The cause of acute laryngitis is an infection, the pathogens of which constantly saprophytize in the larynx and are easily activated under the influence of a number of endogenous and exogenous factors. The occurrence of acute laryngitis is facilitated by general and local hypothermia, unfavorable working conditions (dusty rooms, hot dry air, increased background noise, etc.), as well as overstrain of the vocal apparatus. The disease can also be a result of trauma, chemical and thermal burns of the larynx.
Apalonia uniformis Pace 2015, spec. nov.
Creators: name: Pace, Roberto
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Apalonia
Apalonia uniformis

description: Apalonia uniformis spec. nov.
(Figg. 36, 134–135)
 Materiale tipico: Holotypus , Guyane Fr., Coralie, 15.XI.2011, leg. T. Struyve (SDEI).
 Descrizione: Lunghezza 2,8 mm. Corpo lucido e rossiccio, con capo nero, i due uroterghi liberi basali gialli, dal terzo al quinto bruni; antenne rossicce con i tre antennomeri basali e l’undicesimo giallo-rossicci; zampe giallo-rossicce. Occhi, in visione dorsale, molto grandi. Secondo antennomero più breve del primo, terzo più lungo del secondo, quarto e quinto lunghi quanto larghi, dal sesto al decimo trasversi. Reticolazione di capo e pronoto evidente, quella di elitre e addome non visibile. Punteggiatura del capo assente, quella delle elitre fitta e superficiale. Granulosità del pronoto fine, fitta ed evidente, quella dell’addome visibile solo al margine posteriore di ciascun urotergo libero. Edeago come da Figg. 134–135.
 Etimologia: La nuova specie prende il nome di “Uniforme” perché il colore del corpo è simile a quello di molte specie affini.
description: Published as part of Pace, Roberto, 2015, Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Parte V (Coleoptera, Staphylinidae), pp. 131-156 in Beiträge Zur Entomologie = Contributions to Entomology 65 (1) on page 143, DOI: 10.21248/contrib.entomol.65.1.75-84, http://zenodo.org/record/4753790
Effect of He on the Order-Disorder Transition in Ni3Al under Irradiation
Creators: name: Saidi, Peyman
name: Changizian, Pooyan
name: Nicholson, Eric
name: Zhang, He Ken
name: Luo, Yu
name: Yao, Zhongwen
name: Singh, Chandra Veer
name: Daymond, Mark R.
name: Beland, Laurent Karim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The order-disorder transition in Ni-Al alloys under irradiation represents an interplay between various re-ordering processes and disordering due to thermal spikes generated by incident high energy particles. Typically, ordering in enabled by diffusion of thermally-generated vacancies, and can only take place at temperatures where they are mobile and in sufficiently high concentration. Here, in-situ transmission electron micrographs reveal that the presence of He, usually considered to be a deleterious immiscible atom in this material, promotes reordering in Ni3Al at temperatures where vacancies are not effective ordering agents. A rate-theory model is presented, that quantitatively explains this behavior, based on parameters extracted from atomistic simulations. These calculations show that the V2He complex is an effective agent through its high stability and mobility. It is surmised that immiscible atoms may stabilize reordering agents in other materials undergoing driven processes, and preserve ordered phases at temperature where the driven processes would otherwise lead to disorder.
Unrealized potential from smaller institutions : four strategies for advancing STEM diversity
Creators: name: Jayabalan, Monessha
name: Caballero, Madeline E.
name: Cordero, Alyssa D.
name: White, Brandyn M.
name: Asalone, Kathryn Celestia
name: Moore, Madison M.
name: Irabor, Esohe G.
name: Watkins, Shari E.
name: Walters-Conte, Kathryn
name: Taraboletti, Alexandra
name: Hartings, Matthew
name: Chow, Brenda Y.
name: Saeed, Bushra A.
name: Bracht, Kathryn A.
name: Bracht, John
Publisher: name: Elsevier B.V.
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems

description: Diversity within science, technology, engineering, and mathematics (STEM) remains disturbingly low. Relative to larger, highly funded universities, smaller schools harbor more diverse student demographics and more limited resources. Here, we propose four strategies leveraging the unique advantages of smaller institutions to advance underrepresented scholars along STEM pathways.
Disparity to parity to solidarity : balancing the scales of international agricultural policy for justice and viability
Creators: name: Graddy-Lovelace, T. Garrett
name: Naylor, Patti
Publisher: name: American University
Year: 2023

description: Resetting international agricultural governance requires a collective commitment to changing the economic rules of production. This article reports on the challenging questions raised by the Disparity to Parity project, led by a group of farmer-activists, farmer organizations, and scholar-activists in the US. How can parity policies be updated, expanded, redesigned with and for Black, Indigenous, immigrant, cooperative, female and gender diverse farmers and would-be farmers? How does the parity movement join in global solidarity to reset the international agricultural economic and trade rules to reverse the globalization of agriculture that dumps surplus and undermines food sovereignty?
Koopman-von Neumann Approach to Quantum Simulation of Nonlinear Classical Dynamics
Creators: name: Joseph, Ilon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Quantum computers can be used to simulate nonlinear non-Hamiltonian classical dynamics on phase space by using the generalized Koopman-von Neumann formulation of classical mechanics. The Koopman-von Neumann formulation implies that the conservation of the probability distribution function on phase space, as expressed by the Liouville equation, can be recast as an equivalent Schrödinger equation on Hilbert space with a Hermitian Hamiltonian operator and a unitary propagator. This Schrödinger equation is linear in the momenta because it derives from a constrained Hamiltonian system with twice the classical phase space dimension. A quantum computer with finite resources can be used to simulate a finite-dimensional approximation of this unitary evolution operator. Quantum simulation of classical dynamics is exponentially more efficient than a deterministic Eulerian discretization of the Liouville equation if the Koopman-von Neumann Hamiltonian is sparse. Utilizing quantum walk techniques for state preparation and amplitude estimation for the calculation of observables leads to a quadratic improvement over classical probabilistic Monte Carlo algorithms.
description: 19 pages, 3 figures