cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Logarithmic convexity of Gini means
Creators: name: Qi, Feng
name: Guo, Bai-Ni
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26A48, 26A51, 26B25, 26D07

description: In the paper, the monotonicity and logarithmic convexity of Gini means and related functions are investigated.
description: 4 pages
Traumatic Brain Injury Related to Motor Vehicle Accidents in Guinea: Impact of Treatment Delay, Access to Healthcare, and Patient's Financial Capacity on Length of Hospital Stay and in-hospital Mortality
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Background—Traumatic brain injury related to road traffic accidents poses a major challenge in resource-poor settings within Guinea. Objective—To analyze the impact of treatment delay, access to healthcare, and patient's financial capacity on duration of hospital stay and in-hospital mortality. Methodology—Data from patients with traumatic brain injury secondary to motor vehicle accident admitted to a reference hospital (public or private) in Guinea during 2009 were analyzed. The association between various factors (treatment delay, access to healthcare, and patient's financial capacity) and prolonged hospital stay (>21 days) and in-hospital mortality were analyzed using two multivariate logistic regression models. Results—The mean (±standard deviation) duration of hospital stay was 8.0 (±8.1) days. The risk of prolonged hospital stay increased by 60% when the time interval between accident and hospital arrival was greater than 12 hours compared with those in whom the time interval was less than 6 hours (adjusted odds ratio [OR] = 1.6, 95% confidence interval [CI] = 1.0–2.6, p = 0.03). Compared with patients with lowfinancial capacity, patients with medium-financial capacity (adjusted OR = 0.6, 95% CI = 0.4–0.8, p = 0.001) and those with high capacity (adjusted OR = 0.6, 95% CI = 0.4–0.9, p = 0.02) were less likely to have a prolonged hospital stay. The risk of in-hospital mortality was 2.6 times higher in patients with time interval between accident and hospital arrival greater than 12 hours compared with those in whom the time interval was less than 6 hours (adjusted OR = 2.6, 95% CI = 1.1–6.2 p = 0.03). In-hospital mortality was not related to patient's financial capacity
Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4
Creators: name: Sun, C. P.
name: Huang, C. L.
name: Lin, C. C.
name: Her, J. L.
name: Ho, C. J.
name: Lin, J. -Y.
name: Berger, H.
name: Yang, H. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Colossal magnetoresistance (CMR) and electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition (MIT) in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the colossal magnetocapacitive (CMC), colossal electrocapacitive (CEC), CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
description: 3 pages, 4 figures, accepted by Applied Physics Letters
When Planets Collide: The British Conservative Party and the Discordant Goals of Delivering Brexit and Preserving the Domestic Union, 2016–2019
Creators: name: Kenny, Michael
name: Sheldon, Jack
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Articles
Union
Conservative Party
Brexit
territorial politics
United Kingdom

description: This article explores how the British Conservative Party has dealt with the dilemmas arising from its pursuit of two increasingly discordant goals: delivering Brexit and maintaining the domestic Union. Drawing on interviews and analyses of parliamentary debates, we identify a resurgence in the 2016–2019 period of an older belief in a unitarist state, and a new form of pro-Union activism in policy terms. Against those commentators who depict Britain’s Conservatives as having abandoned their unionist vocation, we explore the coalescence of a more assertive and activist strain of unionist sentiment. But we also find a willingness among Conservatives at the centre to sub-contract thinking about non-English parts of the UK to ‘local’ political representatives such as the Democratic Unionist Party and the Scottish Conservatives, and a growing anxiety about how to handle emergent tensions between the competing priorities associated with delivering Brexit and maintaining the domestic Union.
Potentiometric MRI of a Superconcentrated Lithium Electrolyte: Testing the Irreversible Thermodynamics Approach.
Creators: name: Wang, Andrew A
name: Gunnarsdóttir, Anna B
name: Fawdon, Jack
name: Pasta, Mauro
name: Grey, Clare P
name: Monroe, Charles W
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: Superconcentrated electrolytes, being highly thermodynamically nonideal, provide a stringent proving ground for continuum transport theories. Herein, we test an ostensibly complete model of LiPF6 in ethyl-methyl carbonate (EMC) based on the Onsager-Stefan-Maxwell theory from irreversible thermodynamics. We perform synchronous magnetic resonance imaging (MRI) and chronopotentiometry to examine how superconcentrated LiPF6:EMC responds to galvanostatic polarization and open-circuit relaxation. We simulate this experiment using an independently parametrized model with six composition-dependent electrolyte properties, quantified up to saturation. Spectroscopy reveals increasing ion association and solvent coordination with salt concentration. The potentiometric MRI data agree closely with the predicted ion distributions and overpotentials, providing a completely independent validation of the theory. Superconcentrated electrolytes exhibit strong cation-anion interactions and extreme solute-volume effects that mimic elevated lithium transference. Our simulations allow surface overpotentials to be extracted from cell-voltage data to track lithium interfaces. Potentiometric MRI is a powerful tool to illuminate electrolytic transport phenomena.
CDF Multi-Muon Events and Singlet Extensions of the MSSM
Creators: name: Domingo, Florian
name: Ellwanger, Ulrich
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a generalization of the minimal supersymmetric extension of the Standard Model in the form of three additional singlet superfields, which would explain the essential features of the CDF multi-muon events presented recently: a large production cross section of ~ 100 pb originates from the production of a CP-odd scalar A with a mass in the 70 - 80 GeV range and a large value of tan(beta) ~ 40. The CP-odd scalar A decays dominantly into CP-odd and CP-even scalars a_1 and h_1, which generate decay cascades h_1 -> 2 h_2 -> 4 a_2 -> 8 tau-leptons, and a_1 -> h_1 a_2 with h_1 decaying as above. The decay a_2 -> tau+ tau- is slow, leading to a lifetime of O(20) ps. The phenomenology of the model differs from similar scenarios presented before in that one of the two cascades leads to 10 instead of 8 tau-leptons, and additional production processes like associate A production with b b-bar pairs are relevant.
description: 10 pages, comments on the required total cross section added, to appear in MPLA
A new cyclohexenone from the tin mine tailings-derived fungus Aspergillus flavus YIM DT 10012
Creators: name: Chunyu, Wei-Xun
name: Zhao, Jiang-Yuan
name: Ding, Zhang-Gui
name: Han, Xiu-Lin
name: Wang, Yong-Xia
name: Ding, Jian-Hai
name: Wang, Fei
name: Li, Ming-Gang
name: Wen, Meng-Liang
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Virology

description: A new cyclohexenone, named phomaligol D (1), together with two known compounds, kojic acid (2) and phomaligol A (3) were isolated from the tin mine tailings-derived fungus Aspergillus flavus YIM DT 10012. Their structures were elucidated by detailed analysis of spectroscopic data. Structures of compounds 1–3 isolated from the cultures of Aspergillus flavus YIM DT 10012.
The Challenge of Adversarial Machine Learning
Creators: name: Churilla, Matthew
name: Vanhoudnos, Nathan
name: Beveridge, Robert
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Imagine riding to work in your self-driving car. As you approach a stop sign, instead of stopping, the car speeds up and goes through the stop sign because it interprets the stop sign as a speed limit sign. How did this happen? Even though the car’s machine learning (ML) system was trained to recognize stop signs, someone added stickers to the stop sign, which fooled the car into thinking it was a 45-mph speed limit sign. This simple act of putting stickers on a stop sign is one example of an adversarial attack on MLsystems. In this SEI Blog post, I examine how ML systems can be subverted and, in this context, explain the concept of adversarial machine learning. I also examine the motivations of adversaries and what researchers are doing to mitigate their attacks. Finally, I introduce a basic taxonomy delineating the ways in which an ML model can be influenced and show how this taxonomy can be used to inform models that are robust against adversarial actions.
Automation and skill evolution : examining the impact on workforce skillsets in the mining industry
Creators: name: De Holanda Araujo, Clara
Publisher: name: University of British Columbia
Year: 2024

description: This thesis aims to investigate the impact of automation on the mining industry’s labour force by analyzing the implementation of this technology in the Highland Valley Copper (HVC) mine operated by Teck Resources in British Columbia. The mining industry has entered Industry 4.0, which has redefined technology's role in the processing of minerals and metals. A popular technology adopted by mining companies is automation, which promotes the use of machines to assume human-led jobs. The shift in the way minerals and metals are processed because of technology has resulted in the mining labour market experiencing drastic changes in job descriptions. That is, entry-level jobs with manual, repetitive and physical characteristics, such as truck drivers, are at high risk of being replaced by automation with the adoption of autonomous haulage systems. The shift in the labour market has influenced the skills that mining companies are searching for, which now tend to be more technology-intensive and often require a high level of professional training. Through a case study analysis of Highland Valley Copper Mine and by conducting a series of interviews with strategic stakeholders who provided a deep and honest insight into their perspectives, this research found that automation strongly impacts mining communities’ ability to access jobs and enter the mining workforce. Although the benefits of increasing automation in mining operations are numerous, significant risks to the business and society must be adequately managed. The analysis provided recommendations for different stakeholder groups, such as government, mining companies, academia, and associations, unions and institutions, on their roles and responsibilities in supporting the mining labour force for a just, ethical, sustainable, and commercial transition to automation.
A solution scan of societal options to reduce transmission and spread of respiratory viruses: SARS-CoV-2 as a case study.
Creators: name: Sutherland, William J
name: Taylor, Nigel G
name: Aldridge, David C
name: Martin, Philip
name: Rhodes, Catherine
name: Shackelford, Gorm
name: Beard, Simon
name: Belfield, Haydn
name: Bladon, Andrew J
name: Brick, Cameron
name: Christie, Alec P
name: Dobson, Andrew P
name: Downey, Harriet
name: Hood, Amelia S C
name: Hua, Fangyuan
name: Hughes, Alice C
name: Jarvis, Rebecca M
name: MacFarlane, Douglas
name: Morgan, William H
name: Mupepele, Anne-Christine
name: Marciniak, Stefan J
name: Nelson, Cassidy
name: Ó HÉigeartaigh, Seán
name: Rios Rojas, Clarissa
name: Sainsbury, Katherine A
name: Smith, Rebecca K
name: Sundaram, Lalitha S
name: Thornton, Ann
name: Watkins, John
name: White, Thomas B
name: Willott, Kate
name: Petrovan, Silviu O
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Disease control
Coronavirus
Public Health
Biosecurity
New Normal
Covid-19

description: Societal biosecurity - measures built into everyday society to minimize risks from pests and diseases - is an important aspect of managing epidemics and pandemics. We aimed to identify societal options for reducing the transmission and spread of respiratory viruses. We used SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) as a case study to meet the immediate need to manage the COVID-19 pandemic and eventually transition to more normal societal conditions, and to catalog options for managing similar pandemics in the future. We used a 'solution scanning' approach. We read the literature; consulted psychology, public health, medical, and solution scanning experts; crowd-sourced options using social media; and collated comments on a preprint. Here, we present a list of 519 possible measures to reduce SARS-CoV-2 transmission and spread. We provide a long list of options for policymakers and businesses to consider when designing biosecurity plans to combat SARS-CoV-2 and similar pathogens in the future. We also developed an online application to help with this process. We encourage testing of actions, documentation of outcomes, revisions to the current list, and the addition of further options.
On quasilinear parabolic evolution equations in weighted $L_p$-spaces
Creators: name: Köhne, Matthias
name: Pruess, Jan
name: Wilke, Mathias
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K90 (Primary), 35B30, 35B40, 76D27

description: In this paper we develop a geometric theory for quasilinear parabolic problems in weighted $L_p$-spaces. We prove existence and uniqueness of solutions as well as the continuous dependence on the initial data. Moreover, we make use of a regularization effect for quasilinear parabolic equations to study the $\om$-limit sets and the long-time behaviour of the solutions. These techniques are applied to a free boundary value problem. The results in this paper are mainly based on maximal regularity tools in (weighted) $L_p$-spaces.
description: 17 pages
Predicting COVID-19 progression from diagnosis to recovery or death linking primary care and hospital records in Castilla y León (Spain).
Creators: name: Álvarez-Esteban, Pedro C
name: Del Barrio, Eustasio
name: Rueda, Oscar M
name: Rueda, Cristina
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Humans
Disease Progression
Calibration
Hospital Records
Confidence Intervals
Proportional Hazards Models
Probability
Reproducibility of Results
Comorbidity
Adolescent
Adult
Aged
Aged, 80 and over
Middle Aged
Child
Child, Preschool
Infant
Infant, Newborn
Hospitals
Primary Health Care
Spain
Female
Male
Young Adult
COVID-19

description: This paper analyses COVID-19 patients' dynamics during the first wave in the region of Castilla y León (Spain) with around 2.4 million inhabitants using multi-state competing risk survival models. From the date registered as the start of the clinical process, it is assumed that a patient can progress through three intermediate states until reaching an absorbing state of recovery or death. Demographic characteristics, epidemiological factors such as the time of infection and previous vaccinations, clinical history, complications during the course of the disease and drug therapy for hospitalised patients are considered as candidate predictors. Regarding risk factors associated with mortality and severity, consistent results with many other studies have been found, such as older age, being male, and chronic diseases. Specifically, the hospitalisation (death) rate for those over 69 is 27.2% (19.8%) versus 5.3% (0.7%) for those under 70, and for males is 14.5%(7%) versus 8.3%(4.6%)for females. Among patients with chronic diseases the highest rates of hospitalisation are 26.1% for diabetes and 26.3% for kidney disease, while the highest death rate is 21.9% for cerebrovascular disease. Moreover, specific predictors for different transitions are given, and estimates of the probability of recovery and death for each patient are provided by the model. Some interesting results obtained are that for patients infected at the end of the period the hazard of transition from hospitalisation to ICU is significatively lower (p < 0.001) and the hazard of transition from hospitalisation to recovery is higher (p < 0.001). For patients previously vaccinated against pneumococcus the hazard of transition to recovery is higher (p < 0.001). Finally, internal validation and calibration of the model are also performed.
Chemical differentiation in regions of high mass star formation II. Molecular multiline and dust continuum studies of selected objects
Creators: name: Zinchenko, I.
name: Caselli, P.
name: Pirogov, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The aim of this study is to investigate systematic chemical differentiation of molecules in regions of high mass star formation. We observed five prominent sites of high mass star formation in HCN, HNC, HCO+, their isotopes, C18O, C34S and some other molecular lines, for some sources both at 3 and 1.3 mm and in continuum at 1.3 mm. Taking into account earlier obtained data for N2H+ we derive molecular abundances and physical parameters of the sources (mass, density, ionization fraction, etc.). The kinetic temperature is estimated from CH3C2H observations. Then we analyze correlations between molecular abundances and physical parameters and discuss chemical models applicable to these species. The typical physical parameters for the sources in our sample are the following: kinetic temperature in the range ~ 30-50 K (it is systematically higher than that obtained from ammonia observations and is rather close to dust temperature), masses from tens to hundreds solar masses, gas densities ~ 10^5 cm^{-3}, ionization fraction ~ 10^{-7}. In most cases the ionization fraction slightly (a few times) increases towards the embedded YSOs. The observed clumps are close to gravitational equilibrium. There are systematic differences in distributions of various molecules. The abundances of CO, CS and HCN are more or less constant. There is no sign of CO and/or CS depletion as in cold cores. At the same time the abundances of HCO+, HNC and especially N2H+ strongly vary in these objects. They anti-correlate with the ionization fraction and as a result decrease towards the embedded YSOs. For N2H+ this can be explained by dissociative recombination to be the dominant destroying process. N2H+, HCO+, and HNC are valuable indicators of massive protostars.
description: 15 pages, 8 figures
Non-Collinear Magnetic Phases of a Triangular-Lattice Antiferromagnet and Doped CuFeO$_2$
Creators: name: Fishman, Randy S.
name: Okamoto, Satoshi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We obtain the non-collinear ground states of a triangular-lattice antiferromagnet with exchange interactions up to third nearest neighbors as a function of the single-ion anisotropy $D$. At a critical value of $D$, the collinear $\uudd $ phase transforms into a complex non-collinear phase with odd-order harmonics of the fundamental ordering wavevector $\vQ $. The observed elastic peaks at $2π\vx -\vQ $ in both Al- and Ga- doped CuFeO$_2$ are explained by a "scalene" distortion of the triangular lattice produced by the repulsion of neighboring oxygen atoms.
description: 4 pages 3 figures, accepted for publication by Phys. Rev. B Rapid communications
Algebraic A-hypergeometric Functions
Creators: name: Beukers, Frits
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We formulate and prove a combinatorial criterion to decide if an A-hypergeometric system of differential equations has a full set of algebraic solutions or not. This criterion generalises the so-called interlacing criterion in the case of hypergeometric functions of one variable.
description: 14 pages, 3 figures, research article
Disorders of the Autonomic Nervous System after Hemispheric Cerebrovascular Disorders: an Update
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Autonomic and cardiac dysfunction may occur after vascular brain injury without any evidence of primary heart disease. During acute stroke, autonomic dysfunction, for example, elevated arterial blood pressure, arrhythmia, and ischemic cardiac damage, has been reported, which may hinder the prognosis. Autonomic dysfunction after a stroke may involve the cardiovascular, respiratory, sudomotor, and sexual systems, but the exact mechanism is not fully understood. In this review paper, we will discuss the anatomy and physiology of the autonomic nervous system and discuss the mechanism(s) suggested to cause autonomic dysfunction after stroke. We will further elaborate on the different cerebral regions involved in autonomic dysfunction complications of stroke. Autonomic nervous system modulation is emerging as a new therapeutic target for stroke management. Understanding the pathogenesis and molecular mechanism(s) of parasympathetic and sympathetic dysfunction after stroke will facilitate the implementation of preventive and therapeutic strategies to antagonize the clinical manifestation of autonomic dysfunction and improve the outcome of stroke.
Association between self-control and health risk behaviors: a cross-sectional study with 9th grade adolescents in São Paulo.
Creators: name: Astolfi, Roberta Corradi
name: Leite, Maria Alvim
name: Papa, Cassio Henrique Gomide
name: Ryngelblum, Marcelo
name: Eisner, Manuel
name: Peres, Maria Fernanda Tourinho
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Adolescents
Self-control
Low- And Middle-income Country
Multiple Health Risk Behaviour

description: BackgroundSelf-control (SC) has been consistently found associated with diverse health risk behaviors (HRBs), but little research refers to low- and middle-income countries. Furthermore, there is evidence that some HRBs tend to aggregate, however studies with the specific purpose of addressing the relation between SC and multiple health risk behaviors (MHRBs) are rare. The objective of this study is to analyze these associations and provide evidence to help filling these gaps.MethodsA sample of 2106 9th grade students from the city of São Paulo responded a self-administered questionnaire in 2017. We tested the association of SC measured as an ordinal variable with four levels (higher, high, medium and low) with six HRBs (binge drinking, marijuana use, smoking, high consumption of ultra-processed food, sedentary behavior and bullying perpetration), in both separated and aggregated forms (MHRBs), controlling for potential confounders. Binary logistic regression was used to test the association between exposure (SC) and single outcomes. In order to analyze the association of SC with MHRBs, multinomial logistic regression was employed.ResultsSC was associated with five of six HRBs investigated and with MHRBs. The effect size of the association of SC and MHRBs increased in a steep pattern with accumulation of more HRBs.ConclusionLow self-control is associated with most HRBs investigated and the magnitude of the association increases when more than two or three HRBs are accumulated. There seems to be a group of adolescents in a position of pronounced vulnerability for MHRBs. This should be considered when designing public policy and prevention programs. In contexts of limited or scarce resources and public funds, interventions focusing the most vulnerable groups, instead of universal interventions, should be considered.
Generation of entangled coherent states for distant Bose-Einstein condensates via electromagnetically induced transparency
Creators: name: Kuang, Le-Man
name: Chen, Zeng-Bing
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we propose a method to generate entangled coherent states between two spatially separated atomic Bose-Einstein condensates (BECs) via the technique of the electromagnetically induced transparency (EIT). Two strong coupling laser beams and two entangled probe laser beams are used to make two distant BECs be in EIT states and to generate an atom-photon entangled state between probe lasers and distant BECs. The two BECs are initially in un-entangled product coherent states while the probe lasers are initially in an entangled state. Entangled states of two distant BECs can be created through performing projective measurements upon the two outgoing probe lasers under certain conditions. Concretely, we propose two protocols to show how to generate entangled coherent states of the two distant BECs. One is a single-photon scheme in which an entangled single-photon state serves the quantum channel to generate entangled distant BECs. The other is a multiphoton scheme where an entangled coherent state of the probe lasers is used as the quantum channel. Additionally, we also obtain some atom-photon entangled states of particular interest such as entangled states between a pair of optical Bell (or quasi-Bell) states and a pair of atomic entangled coherent (or quasi-Bell) states.
description: 15 pages, 3 figures
Predicting polarizabilities of silicon clusters using local chemical environments
Creators: name: Zauchner, Mario G
name: Dal Forno, Stefano
name: Cśanyi, Gábor
name: Horsfield, Andrew
name: Lischner, Johannes
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Paper
machine learning polarizabilities
silicon cluster polarizabilities
predicting polarizabilities of nanoparticles
RPA polarizabilities of silicon clusters

description: Abstract: Calculating polarizabilities of large clusters with first-principles techniques is challenging because of the unfavorable scaling of computational cost with cluster size. To address this challenge, we demonstrate that polarizabilities of large hydrogenated silicon clusters containing thousands of atoms can be efficiently calculated with machine learning methods. Specifically, we construct machine learning models based on the smooth overlap of atomic positions (SOAP) descriptor and train the models using a database of calculated random-phase approximation polarizabilities for clusters containing up to 110 silicon atoms. We first demonstrate the ability of the machine learning models to fit the data and then assess their ability to predict cluster polarizabilities using k-fold cross validation. Finally, we study the machine learning predictions for clusters that are too large for explicit first-principles calculations and find that they accurately describe the dependence of the polarizabilities on the ratio of hydrogen to silicon atoms and also predict a bulk limit that is in good agreement with previous studies.
Quantitative life-loss risk evaluation for landslides
Creators: name: Strouth, Alexander Brian
Publisher: name: University of British Columbia
Year: 2024

description: A risk evaluation compares a risk with perceptions of tolerable risk, benefits of taking the risk, and available resources and options for managing the risk. It is part of a structured framework for guiding decisions. It can help answer questions like, is the community safe enough from landslides and, if not, how much should be invested to protect it? Since 2005, for residential developments in British Columbia, probability of death due to a landslide, which we call life-loss risk, has been compared with risk tolerance thresholds that are intended to differentiate risks that are too high to be accepted from those that are low enough to be lived with. Local governments have used these risk evaluations to request funding from provincial and federal governments for landslide protection. The risk assessments were intended to provide clear justification for the landslide mitigation investments. But, an analysis of case studies has shown that this intention has not been met. Instead, the resulting landslide mitigation designs have tended to be unaffordable, and the risk evaluations have failed to persuade funding authorities that proposed risk management solutions are a justifiable allocation of governments’ limited resources. Therefore, this research aims to review and improve the methods for quantitative life-loss risk evaluations used for landslide risk management in British Columbia. Its goal is to shape a process that leads to fair, efficient, and affordable landslide risk management solutions that can be adapted for implementation around the world. This research explores both sides of the risk evaluation comparison, including the risk estimate itself and the risk tolerance criteria. It provides a new method for improving the accuracy of life-loss risk estimates based on historical fatality data, and it explores the overlooked and misunderstood aspects of risk tolerance thresholds and conditions for tolerating risks. In conclusion, the research shows that a simple comparison of life-loss risk with a universally applied risk tolerance threshold is usually inadequate and inappropriate. Many other factors control decisions, like economic risks, available funding, and political priorities. It is now time to include these factors more explicitly in our landslide risk management decision process.
Optical and X-ray Outbursts of Be/X-ray binary system SAX J2103.5+4545
Creators: name: Kiziloglu, U.
name: Ozbilgen, S.
name: Kiziloglu, N.
name: Baykal, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the relations between Halpha equivalent width, optical brightness and X-ray flux of Be/X-ray binary system SAX J2103.5+4545, by analyzing the optical photometric and spectroscopic observations together with the X-ray observations. In the photometric observations PSF photometry were applied using MIDAS and its DAOPHOT package. The reduction and analysis of spectra were done by using MIDAS and its suitable packages. The X-ray outburst of the system occurred just after the optical outburst. The nearly symmetric Halpha emission line profiles observed during the beginning of optical outburst turn into asymmetric profiles with increased EW values during the dissipation of Be disc. Halpha lines changed from emission to absorption during the observation period. The observed double peaked HeI emission lines might come from the accretion disc of neutron star which is temporarily formed at the time of X-ray outburst.
description: to be pubished at Astronomy and Astrophysics on June 2009
Integral field spectroscopy with SINFONI of VVDS galaxies. II. The mass-metallicity relation at 1.2 < z < 1.6
Creators: name: Queyrel, J.
name: Contini, T.
name: Perez-Montero, E.
name: Garilli, B.
name: Fevre, O. Le
name: Kissler-Patig, M.
name: Epinat, B.
name: Vergani, D.
name: Tresse, L.
name: Amram, P.
name: Lemoine-Busserolle, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This work aims to provide a first insight into the mass-metallicity (MZ) relation of star-forming galaxies at redshift z~1.4. To reach this goal, we present a first set of nine VVDS galaxies observed with the NIR integral-field spectrograph SINFONI on the VLT. Oxygen abundances are derived from empirical indicators based on the ratio between strong nebular emission-lines (Halpha, [NII]6584 and [SII]6717,6731). Stellar masses are deduced from SED fitting with Charlot & Bruzual (2007) population synthesis models, and star formation rates are derived from [OII]3727 and Halpha emission-line luminosities. We find a typical shift of 0.2-0.4 dex towards lower metallicities for the z~1.4 galaxies, compared to the MZ-relation in the local universe as derived from SDSS data. However, this small sample of eight galaxies does not show any clear correlation between stellar mass and metallicity, unlike other larger samples at different redshift (z~0, z~0.7, and z~2). Indeed, our galaxies lie just under the relation at z~2 and show a small trend for more massive galaxies to be more metallic (~0.1 logarithmic slope). There are two possible explanations to account for these observations. First, the most massive galaxies present higher specific star formation rates when compared to the global VVDS sample which could explain the particularly low metallicity of these galaxies as already shown in the SDSS sample. Second, inflow of metal-poor gas due to tidal interactions could also explain the low metallicity of these galaxies as two of these three galaxies show clear signatures of merging in their velocity fields. Finally, we find that the metallicity of 4 galaxies is lower by ~0.2 to 0.4 dex if we take into account the N/O abundance ratio in their metallicity estimate.
description: 7 pages, 4 figures, accepted in A&A Comments: Comments: more accurate results with better stellar mass estimates
Quasinormal Modes of Scalar Field in Five-dimensional Lovelock Black Hole Spacetime
Creators: name: Chen, Juhua
name: Wang, Yongjiu
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper using the third-order WKB approximation, a numerical method devised by Schutz, Will and Iyer, we investigate the quasinormal frequencies of the scalar field in the background of five-dimensional Lovelock black hole. We find that the ultraviolet correction to Einstein theory in the Lovelock theory makes the scalar field decay more slowly and makes the scalar field oscillate more quickly, and the cosmological constant makes the scalar field decay more slowly and makes the scalar field oscillate more slowly in Lovelock black hole backgroud. On the other hand we also find that quasinormal frequencies depend very weakly on the angular quantum number $l$.
description: 12 pages, 6 figures, 2 tables
THE HETERO-GAY SENSIBILITY: A QUALITATIVE STUDY ON HETEROSEXUALS IN GAY SOCIAL SPACES
Creators: name: Fuentes, Christopher
Publisher: name: Zenodo
Year: 2023
Subjects: gay social spaces
gender norms
restrictions
social interactions
sexual exploration
collective effervescence

description: The increased heterosexual presence within gay social spaces has set off a heavy debate on their changing dynamics. Previous scholarship has examined sexual minorities’ views of heterosexual presence, but little research has studied the experiences of straight people themselves. This qualitative interview-based study (N = 15) examines heterosexual perceptions of gay social spaces, including differences in experiences, interactions, and identity compared to heteronormative environments. Findings suggest participants perceive strong social norms in majority spaces, while gay spaces offer a reprieve from such norms. People describe experiencing freedom in their interactions with others while further exploring their sexuality in a safe environment. Gay social spaces thus carry strong significance in contemporary society not only for sexual minorities, but for heterosexuals as well.
Predicting First Time Falls: Validating a Novel Algorithm in Long Term Care
Creators: name: Kuspinar, Ayse
name: Hirdes, John P.
name: Berg, Katherine
name: McArthur, Caitlin
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Hematology
subject: 60506 Virology

description: To determine the predictive validity of the 1stFall algorithm in long-term care (LTC) residents across four Canadian provinces. This retrospective cohort study included all clients admitted to LTC between 2006-2017 with no history of falls in the past 30 days. The outcome was occurrence of a fall and logistic regression analysis was performed to assess predictive validity. A total of 199,997 LTC residents were studied (71% were >80 years old, 66% women, and 17% had severe cognitive impairment). For the total sample, clients in the 2nd, 3rd, 4th and 5th risk categories had 1.15, 1.58, 2.66, and 3.76 times greater odds of falling than the 1st category, respectively. Similar trends were observed across provinces. 1stFall was developed to predict the risk of a first-time fall event in individuals with no history of a recent fall. 1stFall identified LTC residents at risk of a first-time fall, supporting its use in routine care.
Anomalous pressure effect on the magnetic ordering in multiferroic BiMnO3
Creators: name: Chou, C. C.
name: Taran, S.
name: Her, J. L.
name: Sun, C. P.
name: Huang, C. L.
name: Sakurai, H.
name: Belik, A. A.
name: Takayama-Muromachi, E.
name: Yang, H. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the magnetic field dependent dc magnetization and the pressure-dependent (pmax ~ 16 kbar) ac susceptibilities Xp(T) on both powder and bulk multiferroic BiMnO3 samples, synthesized in different batches under high pressure. A clear ferromagnetic (FM) transition is observed at TC ~ 100 K, and increases with magnetic field. The magnetic hysteresis behavior is similar to that of a soft ferromagnet. Ac susceptibility data indicate that both the FM peak and its temperature (TC) decrease simultaneously with increasing pressure. Interestingly, above a certain pressure (9 ~ 11 kbar), another peak appears at Tp ~ 93 K, which also decreases with increasing pressure, with both these peaks persisting over some intermediate pressure range (9 ~ 13 kbar). The FM peak disappears with further application of pressure; however, the second peak survives until present pressure limit (pmax ~ 16 kbar). These features are considered to originate from the complex interplay of the magnetic and orbital structure of BiMnO3 being affected by pressure.
description: 4 pages,4 figures, publised in Physical Review B 78, 092404/2008
Data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".
Creators: name: Saubin, Méline
name: Coville, Jérome
name: Xhaard, Constance
name: Frey, Pascal
name: Soubeyrand, Samuel
name: Halkett, Fabien
name: Fabre, Frédéric
Publisher: name: Zenodo
Year: 2023
Subjects: 1-D colonisation
Dispersal kernel
Long-distance dispersal
Multiple data types
Population dynamic
Spatio-temporal model

description: The zip file contains data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".All files were extracted from the public GitLab repository: https://gitlab.com/saubin.meline/mechanistic-statistical-model, on the date 2023-12-13. Please refer to this public GitLab repository for the latest version of the codes.
This work was supported by grants from the French National Research Agency (ANR-09-BLAN-0145, Emile project; ANR-18-CE32-0001, Clonix2D project; ANR-14-CE25-0013, project NONLOCAL, ANR-11-LABX-0002-01, Cluster of Excellence Arbre; 20-PCPA-0002, Beyond project). Constance Xhaard was supported by a PhD fellowship from the French Ministry of Education and Research (MESR) and by Postdoc fellowship from the French National Research Agency (ANR-09-BLAN-0145, Emile project). Méline Saubin was supported by a PhD fellowship from INRAE and the French National Research Agency (ANR-18-CE32-0001, Clonix2D project).
Efficiently preparing chiral states via fermionic cooling on bosonic quantum hardware
Creators: name: Kishony, Gilad
name: Rudner, Mark S.
name: Berg, Erez
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Simulating many-body systems is one of the most promising applications of near-term quantum computers. An important open question is how to efficiently prepare the ground states of arbitrary fermionic Hamiltonians, especially those with nontrivial topology. Here, we propose an efficient protocol for preparing low-energy states of fermionic Hamiltonians on a noisy bosonic quantum simulator by adiabatic cooling using a simulated bath. We arrange the couplings such that the simulated system and bath together obtain a local fermionic description in which fermionic excitations can be extracted individually, via coherent hopping to the bath, rather than in pairs as would otherwise be required by fermion parity conservation. This approach thus achieves a linear (rather than quadratic) scaling of the cooling rate vs. excitation density at low densities. We show that certain topological phases such as the chiral (non-Abelian) phase of the Kitaev honeycomb model can be prepared efficiently using our protocol. Our protocol performs favorably in the presence of noise, making it suitable for execution on near-term quantum devices.
description: This version matches the published version in Communications Physics. DOI: https://doi.org/10.1038/s42005-025-02002-7
An inner amenable group whose von Neumann algebra does not have property Gamma
Creators: name: Vaes, Stefaan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Operator Algebras (math.OA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We construct inner amenable groups G with infinite conjugacy classes and such that the associated II_1 factor does not have property Gamma of Murray and von Neumann. This solves a problem posed by Effros in 1975.
Data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".
Creators: name: Saubin, Méline
name: Coville, Jérome
name: Xhaard, Constance
name: Frey, Pascal
name: Soubeyrand, Samuel
name: Halkett, Fabien
name: Fabre, Frédéric
Publisher: name: Zenodo
Year: 2023
Subjects: 1-D colonisation
Dispersal kernel
Long-distance dispersal
Multiple data types
Population dynamic
Spatio-temporal model

description: The zip file contains data and codes relating to the article "A mechanistic-statistical approach to infer dispersal and demography from invasion dynamics, applied to a plant pathogen".
 All files were extracted from the public GitLab repository: https://gitlab.com/saubin.meline/mechanistic-statistical-model, on the date 2023-05-08. Please refer to this public GitLab repository for the latest version of the codes. This work was supported by grants from the French National Research Agency (ANR-09-BLAN-0145, Emile project; ANR-18-CE32-0001, Clonix2D project; ANR-14-CE25-0013, project NONLOCAL, ANR-11-LABX-0002-01, Cluster of Excellence Arbre; 20-PCPA-0002, Beyond project). Constance Xhaard was supported by a PhD fellowship from the French Ministry of Education and Research (MESR) and by Postdoc fellowship from the French National Research Agency (ANR-09-BLAN-0145, Emile project). Méline Saubin was supported by a PhD fellowship from INRAE and the French National Research Agency (ANR-18-CE32-0001, Clonix2D project).
title: STUDY OF THE DEFORMATION AND FRACTURE OF ZIRCONIUM ALLOYS UNDER DYNAMIC LOADING
Creators: name: Romanov, A.I.
name: Panov, V.A.
name: Samsonov, M.A.
name: Chirkin, D.E.
name: Bragov, A.M.
name: Igumnov, L.A.
name: Konstantinov, A.Yu.
name: Lomunov, A.K.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2020

description: The main objective of the present work is the experimental and theoretical
investigation of the mechanical properties of the zirconium alloys E110 and E635 in a wide
range of strain rates (10-4÷3·103 с-1) and at different temperatures (20°С÷350°С). The strain
rate and temperature dependencies of deformation diagrams and strength characteristics under
tension and compression have been received using the experimental study. The investigated
materials have shown sensitivity to strain rate and temperature. Experimental data have been
used to identify some LS-DYNA's material models.
CHARACTERISTICS OF THE MEANING OF THE FORM OF ADJECTIVES AND DIMINUCTIONS IN THE UZBEKI LANGUAGE
Creators: name: Abdullaev Shuxrat Dauletbaevich  Karakalpak State University candidate of philological sciences, associate professor O'razboyev Olimjon Rustam o'g'li Karakalpak State University, master
Publisher: name: Zenodo
Year: 2023

description: . In this article, the forms of diminution and caress specific to nouns in the Uzbek language are analyzed. The features of the use of diminutive and caressing forms within the text are proven with concrete examples. 
Key words: Uzbek language, nouns, dictionary forms, diminutive forms, caress forms.
The velocity function of gas-rich galaxies
Creators: name: Zwaan, Martin
name: Meyer, Martin
name: Staveley-Smith, Lister
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the distribution function of rotational velocities phi(V_c) of late-type galaxies from the HIPASS galaxy catalogue. Previous measurements of the late-type velocity function are indirect, derived by converting the galaxy luminosity function using the relation between galaxy luminosity and rotation velocity (the Tully-Fisher relation). The advantage of HIPASS is that space densities and velocity widths are both derived from the same survey data. We find good agreement with earlier inferred measurements of phi(V_c), but we are able to define the space density of objects with V_c as low as 30 km/s. The measured velocity function is `flat' (power-law slope alpha ~ -1.0) below V_c = 100 km/s. We compare our results with predictions based on LCDM simulations and find good agreement for rotational velocities in excess of 100 km/s, but at lower velocities current models over-predict the space density of objects. At V_c=30 km/s this discrepancy is approximately a factor 20.
description: 9 pages, 7 figures. Accepted for publication in MNRAS