cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Superconductivity in Ru substituted BaFe2-xRuxAs2
Creators: name: Sharma, Shilpam
name: Bharathi, A.
name: Chandra, Sharat
name: Reddy, Raghavendra
name: Paulraj, S.
name: Satya, A. T.
name: Sastry, V. S.
name: Gupta, Ajay
name: Sundar, C. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The occurrence of bulk superconductivity at ~22 K is reported in polycrystalline samples of BaFe2-xRuxAs2 for nominal Ru content in the range of x=0.75 to 1.125. A systematic suppression of the spin density wave transition temperature (TSDW) precedes the appearance of superconductivity in the system. A phase diagram is proposed based on the measured TSDW and superconducting transition temperature (TC) variations as a function of Ru composition. Band structure calculations, indicate introduction of electron carriers in the system upon Ru substitutiom. The calculated magnetic moment on Fe shows a minimum at x=1.0, suggesting that the suppression of the magnetic moment is associated with the emergence of superconductivity. Results of low temperature and high field Mossbauer measurements are presented. These indicate weakening of magnetic interaction with Ru substitution
description: 20 pages 10 figures
Groundwater Under Open Access: A Structural Model of the Dynamic Common Pool Extraction Game
Creators: name: Sears, Louis S.
name: Lin Lawell, C.-Y. Cynthia
name: Walter, M. Todd
name: Sears, Louis S.
name: Lin Lawell, C.-Y. Cynthia
name: Walter, M. Todd
Publisher: name: Unknown
Year: 2020
Subjects: Resource/Energy Economics and Policy
Research Methods/Statistical Methods

description: Presentation18113
Peculiar velocities into the next generation: cosmological parameters from the SFI++ survey
Creators: name: Abate, Alexandra
name: Erdogdu, Pirin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present cosmological parameter constraints from the SFI++ galaxy peculiar velocity survey, the largest galaxy peculiar velocity sample to date. The analysis is performed by using the gridding method developed in Abate et al. (2008). We concentrate on constraining parameters which are affected by the clustering of matter: sigma_8 and the growth index gamma. Assuming a concordance LCDM model we find sigma_8=0.91+0.22-0.18 and gamma=0.55+0.13-0.14 after marginalising over Omega_m. These constraints are consistent with, and have similar constraining power to, the same constraints from other current data sets which use different methods. Recently there have been several claims that the peculiar velocity measurements do not agree with LCDM. We find instead although a higher value of sigma_8 and a lower value of Omega_m are preferred, the values are still consistent when compared with WMAP5. We note that although our analysis probes a variety of scales, the constraints will be dominated by the smaller scales, which have the smallest uncertainties. These results show that peculiar velocity analysis is a vital probe of cosmology, providing competitive constraints on parameters such as sigma_8. Its sensitivity to the derivative of growth function, particularly down to redshift zero, means it can provide a vital low redshift anchor on the evolution of structure formation. The importance of utilising different probes with varying systematics is also an essential requirement for providing a consistency check on the best-fitting cosmological model.
description: 8 pages, 3 figures, accepted by MNRAS. V(2) Discussion clarified, reference added
Impedance localization and identification
Creators: name: Biancacci, N.
name: Alemany Fernández, R.
name: Alexahin, Y.
name: Carlà, M.
name: Eldred, J.
name: Höfle, W.
name: Huschauer, A.
name: Levens, T.
name: Malina, L.
name: Métral, E.
name: Migliorati, M.
name: Popovic, B.
name: Salvant, B.
name: Schmidt, F.
name: Tomàs, R.
name: Ventura, D.
name: Vollinger, C.
name: Wang, N.
name: Zannini, C.
Publisher: name: CERN Yellow Reports: Conference Proceedings
Year: 2020

description: The beam coupling impedance represents one of the sources of potential beam instabilities in particle accelerators. The localization of large coupling impedance sources is therefore very important in order to focus the efforts for mitigation measures when these are needed. In this work we will focus on the common methods adopted to quantify the transverse impedance of a particle accelerator both from the global and the local point of views. This activity can be performed in both bunched and coasting beams following different strategies.
description: CERN Yellow Reports: Conference Proceedings, Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
Diagnostics of longitudinal bunch instabilities at KARA
Creators: name: Kehrer, B.
name: Brosi, M.
name: Bründermann, E.
name: Funkner, S.
name: Nasse, M.J.
name: Niehues, G.
name: Patil, M.M.
name: Steinmann, J.L.
name: Müller, A.-S.
Publisher: name: CERN Yellow Reports: Conference Proceedings
Year: 2020

description: KARA, the Karlsruhe Research Accelerator, can be operated in different modes, including a short-bunch mode. During this mode, where the dispersion is stretched in order to reduce the momentum-compaction factor, micro-bunching instability can occur. At KARA, several measurement setups and techniques are used to investigate this instability further with the long-term perspective to suppress and control it. In this contribution, we give an overview about the different setups and the results achieved during the past years.
description: CERN Yellow Reports: Conference Proceedings, Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
Diagnostics with quadrupolar pick-ups
Creators: name: Oeftiger, A.
Publisher: name: CERN Yellow Reports: Conference Proceedings
Year: 2020

description: The spectrum of a quadrupolar pick-up gives access to coherent second-order modes of a beam in a non-invasive way. The signature of bunched beams not only features the first-order and second-order dipolar modes, but also most notably (1.) bands of even envelope modes, (2.) odd (skew) envelope modes and (3.) coherent dispersion modes. The odd (skew) envelope modes can provide information on linear coupling and mismatch thereof. The tunes of even envelope modes and the coherent dispersion modes shift significantly with space charge and can thus provide a measurement thereof. The paper presents measurements of the various modes at the CERN Proton Synchrotron, demonstrates how the spectral amplitudes depend on the mismatch conditions, and suggests a new, alternative way to quantify space charge at high brightness conditions via the coherent dispersion mode.
description: CERN Yellow Reports: Conference Proceedings, Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
Transverse damper and stability diagram
Creators: name: Antipov, S.A.
name: Amorim, D.
name: Biancacci, N.
name: Buffat, X.
name: Métral, E.
name: Mounet, N.
name: Oeftiger, A.
name: Valuch, D.
Publisher: name: CERN Yellow Reports: Conference Proceedings
Year: 2020

description: We describe a proof-of-principle test to measure Landau damping in a hadron ring using a destabilizing transverse feedback acting as a controllable source of beam coupling impedance. The test was performed at the Large Hadron Collider and stability diagrams for a range of its Landau octupole strengths have been measured for its injection energy of 450 GeV. In the future, the procedure could become an accurate way of measuring stability diagrams throughout the machine cycle.
description: CERN Yellow Reports: Conference Proceedings, Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
Impact of COVID-19 pandemic on the accuracy of telephone triage of callers with shortness of breath and/or chest discomfort in Dutch out-of-hours primary care: A retrospective observational study
Creators: name: Spek, Michelle
name: Dobbe, Anna S. M.
name: Zwart, Dorien L.
name: Erkelens, Daphne C. A.
name: Geersing, Geert-Jan
name: de Groot, Esther
name: Delissen, Mathé
name: Rutten, Frans H.
name: Venekamp, Roderick P.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Anecdotal reports suggest that missed diagnosis in general practice during the first wave of the COVID-19 pandemic contributed to a drop in life-threatening events (LTEs) detected in hospitals. To investigate the impact of the COVID-19 pandemic on the accuracy of urgency allocation by telephone triage of patients with shortness of breath and/or chest discomfort in out-of-hours primary care (OHS-PC). Accuracy is defined as the correct allocation of high urgency to patients with LTEs and low urgency to those without. Retrospective observational study with data from callers contacting OHS-PC for shortness of breath and/or chest discomfort, between 1 March and 1 June 2019 (pre-pandemic) and 1 March to 1 June 2020 (first wave COVID-19 pandemic). Sensitivity and specificity of telephone urgency allocation were compared during both periods with LTEs, including acute coronary syndrome, and pulmonary embolism, as the reference. 3,064 adults (1,840 COVID-19 pandemic and 1,224 pre-pandemic, p < 0.001) were included in the study. The sensitivity of urgency allocation was similar during and before the COVID-19 pandemic (0.68, 95% CI 0.59 to 0.75 vs. 0.68, 95% CI 0.60 to 0.75, p = 0.944). Specificity was slightly higher during the COVID-19 pandemic (0.52, 95% CI 0.50 to 0.55 vs. 0.45, 95% CI 0.42 to 0.48, p < 0.001). Despite a surge in calls from adults with shortness of breath and/or chest discomfort during the COVID-19 pandemic, the accuracy of telephone triage for LTEs in OHS-PC remained similar to the pre-pandemic era. Improvement of telephone triage seems necessary in both periods. Despite a surge in calls during the COVID-19 pandemic, the accuracy of urgency allocation of adults with SOB and/or chest discomfort in OHS-PC for LTE remained similar to the pre-pandemic era. Both safety and efficacy of telephone triage could be improved at the OHS-PC of patients with SOB and/or chest discomfort.
Universality under conditions of self-tuning
Creators: name: Peters, Ole
name: Girvan, Michelle
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study systems with a continuous phase transition that tune their parameters to maximize a quantity that diverges solely at a unique critical point. Varying the size of these systems with dynamically adjusting parameters, the same finite-size scaling is observed as in systems where all relevant parameters are fixed at their critical values. This scheme is studied using a self-tuning variant of the Ising model. It is contrasted with a scheme where systems approach criticality through a target value for the order parameter that vanishes with increasing system size. In the former scheme, the universal exponents are observed in naive finite-size scaling studies, whereas in the latter they are not.
description: 5 pages, 3 figures
Valuation of Environmental Resources: Structural Estimation with Recreation Demand and Contingent Valuation Data for Consistent Welfare Measurement
Creators: name: Wu, Qianyan
name: Bi, Xiang
name: Landry, Craig
name: Wu, Qianyan
name: Bi, Xiang
name: Landry, Craig
Publisher: name: Unknown
Year: 2020
Subjects: Resource/Energy Economics and Policy
Research Methods/Statistical Methods

description: Presentation18119
Erstellung einer Methode zur Analytik von Klaerschlammaschen und klaerschlammaschenhaltigen Ziegeln (development of an analysis method for sewage sludge ashes and bricks made from sewage sludge ashes)
Creators: name: Goemann, Karsten
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Inorganic geochemistry

description: No description available
Lattice calculation of the intrinsic soft function and the Collins-Soper kernel
Creators: name: Chu, Min-Huan
name: He, Jin-Chen
name: Hua, Jun
name: Liang, Jian
name: Ji, Xiangdong
name: Schäfer, Andreas
name: Shu, Hai-Tao
name: Su, Yushan
name: Walter, Lisa
name: Wang, Wei
name: Wang, Ji-Hao
name: Yang, Yi-Bo
name: Zeng, Jun
name: Zhang, Qi-An
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: Hadronic Spectroscopy, Structure and Interactions, Lattice QCD, Parton Distributions, Effective Field Theories of QCD
subject: 530 Physik

description: We calculate the soft function using lattice QCD in the framework of large momentum effective theory incorporating the one-loop perturbative contributions. The soft function is a crucial ingredient in the lattice determination of light cone objects using transverse-momentum-dependent (TMD) factorization. It consists of a rapidity-independent part called intrinsic soft function and a rapidity-dependent part called Collins-Soper kernel. We have adopted appropriate normalization when constructing the pseudoscalar meson form factor that is needed in the determination of the intrinsic part and applied Fierz rearrangement to suppress the higher-twist effects. In the calculation of CS kernel we consider a CLS ensemble other than the MILC ensemble used in a previous study. We have also compared the applicability of determining the CS kernel using quasi TMDWFs and quasi TMDPDFs. As an example, the determined soft function is used to obtain the physical TMD wave functions (WFs) of pion and unpolarized iso-vector TMD parton distribution functions (PDFs) of proton.
Vertex decomposable graphs and obstructions to shellability
Creators: name: Woodroofe, Russ
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13F55, 05C38, 05E99

description: Inspired by several recent papers on the edge ideal of a graph G, we study the equivalent notion of the independence complex of G. Using the tool of vertex decomposability from geometric combinatorics, we show that 5-chordal graphs with no chordless 4-cycles are shellable and sequentially Cohen-Macaulay. We use this result to characterize the obstructions to shellability in flag complexes, extending work of Billera, Myers, and Wachs. We also show how vertex decomposability may be used to show that certain graph constructions preserve shellability.
description: 13 pages, 3 figures. v2: Improved exposition, added Section 5.2 and additional references. v3: minor corrections for publication
Beam transfer function and stability diagram in the Large Hadron Collider
Creators: name: Tambasco, C.
name: Pieloni, T.
name: Buffat, X.
name: Métral, E.
Publisher: name: CERN Yellow Reports: Conference Proceedings
Year: 2020

description: Predictions of transverse instability thresholds in the LHC are based on the computation of Landau damping by calculating the stability diagram (SD). However any modification of the tune spread and/or particle distribution modifies the expected Landau damping in the beams. The beam transfer function (BTF) provides direct measurements of the Landau damping and can be used to understand the limitations of the models.
description: CERN Yellow Reports: Conference Proceedings, Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
Retail prices of licensed and unlicensed cannabis
Creators: name: Goldstein, Robin
name: Saposhnik, Raffaele
name: Sumner, Daniel A.
name: Goldstein, Robin
name: Saposhnik, Raffaele
name: Sumner, Daniel A.
Publisher: name: Unknown
Year: 2020
Subjects: Agricultural and Food Policy
Demand and Price Analysis
Industrial Organization

description: Presentation18121
Bell inequalities from multilinear contractions
Creators: name: Salles, Alejo
name: Cavalcanti, Daniel
name: Acín, Antonio
name: Pérez-García, David
name: Wolf, Michael M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide a framework for Bell inequalities which is based on multilinear contractions. The derivation of the inequalities allows for an intuitive geometric depiction and their violation within quantum mechanics can be seen as a direct consequence of non-vanishing commutators. The approach is motivated by generalizing recent work on non-linear inequalities which was based on the moduli of complex numbers, quaternions and octonions. We extend results on Peres conjecture about the validity of Bell inequalities for quantum states with positive partial transposes. Moreover, we show the possibility of obtaining unbounded quantum violations albeit we also prove that quantum mechanics can only violate the derived inequalities if three or more parties are involved.
description: Published version
Precision Agriculture Technology Adoption and Technical Efficiency
Creators: name: DeLay, Nathan D.
name: Thompson, Nathanael M.
name: Mintert, James R.
name: DeLay, Nathan D.
name: Thompson, Nathanael M.
name: Mintert, James R.
Publisher: name: Unknown
Year: 2020
Subjects: Productivity Analysis
Production Economics
Research Methods/Statistical Methods

description: Presentation18126
Optimal leverage from non-ergodicity
Creators: name: Peters, Ole
Publisher: name: arXiv
Year: 2009
Subjects: subject: Risk Management (q-fin.RM)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: In modern portfolio theory, the balancing of expected returns on investments against uncertainties in those returns is aided by the use of utility functions. The Kelly criterion offers another approach, rooted in information theory, that always implies logarithmic utility. The two approaches seem incompatible, too loosely or too tightly constraining investors' risk preferences, from their respective perspectives. The conflict can be understood on the basis that the multiplicative models used in both approaches are non-ergodic which leads to ensemble-average returns differing from time-average returns in single realizations. The classic treatments, from the very beginning of probability theory, use ensemble-averages, whereas the Kelly-result is obtained by considering time-averages. Maximizing the time-average growth rates for an investment defines an optimal leverage, whereas growth rates derived from ensemble-average returns depend linearly on leverage. The latter measure can thus incentivize investors to maximize leverage, which is detrimental to time-average growth and overall market stability. The Sharpe ratio is insensitive to leverage. Its relation to optimal leverage is discussed. A better understanding of the significance of time-irreversibility and non-ergodicity and the resulting bounds on leverage may help policy makers in reshaping financial risk controls.
description: 17 pages, 3 figures. Updated figures and extended discussion of ergodicity
Task shifting from general practitioners to other health professionals in out-of-hours primary care – a systematic literature review on content and quality of task shifting
Creators: name: Bomholt, Katrine Bjørnshave
name: Nebsbjerg, Mette Amalie
name: Burau, Viola
name: Mygind, Anna
name: Christensen, Morten Bondo
name: Huibers, Linda
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biotechnology
Science Policy

description: Task shifting from general practitioners (GPs) to other health professionals could solve the increased workload, but an overview of the evidence is lacking for out-of-hours primary care (OOH-PC). To evaluate the content and quality of task shifting from GPs to other health professionals in clinic consultations and home visits in OOH-PC. Four database literature searches were performed on 13 December 2021, and updated in August 2023. We included articles that studied content (patient characteristics, reason for encounter) and/or quality (patient satisfaction, safety, efficiency) of task shifting in face-to-face contacts at OOH-PC. Two authors independently screened articles for inclusion and assessed the methodological quality of included articles using the JBI critical appraisal checklist. Data was extracted and results were synthesised in a narrative summary. The search identified 1,829 articles, resulting in the final inclusion of seven articles conducted in the UK or the Netherlands. Studies compared GPs with other health professionals (mainly nurses). These other health professionals saw patients with less urgent health problems, younger patients, and patients with less complex health problems than GPs. Most studies concluded that other health professionals provided safe and vastly efficient care corresponding to the level of GPs but findings about productivity were inconclusive. The level of safety and efficiency of care provided by other health professionals in OOH-PC seems like that of GPs, although they mainly see patients presenting with less urgent and less complex health problems. Task shifting from general practitioners to other health professionals could increase treatment capacity in out-of-hours primary care. Task shifting occurs for care to patients with less urgent and less complex health issues. The long-term implications of task shifting in out-of-hours primary care should be investigated.
The Impact of Supplemental Nutrition Assistance Program (SNAP) on Dietary Quality
Creators: name: Feng, Jinglin
name: Fan, Linlin
name: Jaenicke, Edward C.
name: Feng, Jinglin
name: Fan, Linlin
name: Jaenicke, Edward C.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business

description: Presentation18128
Mock LISA data challenge for the galactic white dwarf binaries
Creators: name: Błaut, Arkadiusz
name: Babak, Stanislav
name: Królak, Andrzej
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present data analysis methods used in detection and the estimation of parameters of gravitational wave signals from the white dwarf binaries in the mock LISA data challenge. Our main focus is on the analysis of challenge 3.1, where the gravitational wave signals from more than 50 mln. Galactic binaries were added to the simulated Gaussian instrumental noise. Majority of the signals at low frequencies are not resolved individually. The confusion between the signals is strongly reduced at frequencies above 5 mHz. Our basic data analysis procedure is the maximum likelihood detection method. We filter the data through the template bank at the first step of the search, then we refine parameters using the Nelder-Mead algorithm, we remove the strongest signal found and we repeat the procedure. We detect reliably and estimate parameters accurately of more than ten thousand signals from white dwarf binaries.
description: 38 pages, 13 figures; version accepted in PRD with section VI extended
Sudesna cangshan Wang, Peng & Zhang, 2025, sp. nov.
Creators: name: Wang, Lu-Yu
name: Peng, Xian-Jin
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Dictynidae
Sudesna
Sudesna cangshan

description: Sudesna cangshan sp. nov.
Figs 1, 2, 15 (苍山苏蛛)
Type material.
Holotype: China • ♀ (SWUC -T-DI-14-01); Yunnan Province; Dali City, Mount Cangshan, Dapoqing; 25°34′38″N, 100°07′51″E; elev. 2043 m; 30 August 2009; Z. Z. Yang leg.
Etymology.
The specific name is derived from the county where the type locality is located; used as a noun in apposition.
Diagnosis.
The female of this new species is similar to S. yangi sp. nov. (Figs 13, 14) in having a pale body and 9 - shaped copulatory openings, but it can be distinguished by having copulatory openings as large as the spermathecal head (vs twice as large), gently curved copulatory ducts (vs abruptly bent at an acute angle), and bifurcate spermatheca (vs clavate) (Figs 1, 2 B, C).
Description.
Female holotype (Fig. 2 A) total length 3.31. Prosoma 1.27 long, 1.16 wide; Opisthosoma 2.23 long, 1.65 wide. Dorsum of prosoma pale, with high cephalic area. Eye sizes and interdistances: AME 0.05, ALE 0.08, PME 0.08, PLE 0.07; AME – AME 0.11, AME – ALE 0.09, PME – PME 0.13, PME – PLE 0.12, ALE – PLE 0.02. MOA 0.20 long, anterior width 0.20, posterior width 0.27. Clypeus height 0.12. Chelicerae stout, yellowish brown, with 3 promarginal and 3 retromarginal teeth. Legs yellowish. Leg measurements: I 3.73 (1.04, 1.58, 0.70, 0.41); II 3.28 (1.04, 1.17, 0.68, 0.39), III 2.72 (0.92, 0.91, 0.58, 0.31), IV 3.20 (1.02, 1.12, 0.75, 0.31). Leg formula: 1243. Opisthosoma oval. Dorsum and venter pale. Spinnerets short and yellowish brown.
Epigyne (Figs 1, 2 B, C). Copulatory openings somewhat 9 - shaped and facing away from each other, separated by about 6 times their width. Copulatory ducts membranous, gently curved, longer than spermathecal length. Spermatheca bifurcate, spermathecal heads spherical. Fertilization ducts thin, curved, directed laterally.
Male unknown.
Distribution.
Known only from the type locality, Yunnan, China (Fig. 15).
description: Published as part of Wang, Lu-Yu, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2025, Six new species and a new synonym of the mesh-web spider genus Sudesna Lehtinen, 1967 (Araneae, Dictynidae) from China, pp. 127-149 in ZooKeys 1234 on pages 127-149, DOI: 10.3897/zookeys.1234.145300
On the relationship between continuous- and discrete-time quantum walk
Creators: name: Childs, Andrew M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum walk is one of the main tools for quantum algorithms. Defined by analogy to classical random walk, a quantum walk is a time-homogeneous quantum process on a graph. Both random and quantum walks can be defined either in continuous or discrete time. But whereas a continuous-time random walk can be obtained as the limit of a sequence of discrete-time random walks, the two types of quantum walk appear fundamentally different, owing to the need for extra degrees of freedom in the discrete-time case. In this article, I describe a precise correspondence between continuous- and discrete-time quantum walks on arbitrary graphs. Using this correspondence, I show that continuous-time quantum walk can be obtained as an appropriate limit of discrete-time quantum walks. The correspondence also leads to a new technique for simulating Hamiltonian dynamics, giving efficient simulations even in cases where the Hamiltonian is not sparse. The complexity of the simulation is linear in the total evolution time, an improvement over simulations based on high-order approximations of the Lie product formula. As applications, I describe a continuous-time quantum walk algorithm for element distinctness and show how to optimally simulate continuous-time query algorithms of a certain form in the conventional quantum query model. Finally, I discuss limitations of the method for simulating Hamiltonians with negative matrix elements, and present two problems that motivate attempting to circumvent these limitations.
description: 22 pages. v2: improved presentation, new section on Hamiltonian oracles; v3: published version, with improved analysis of phase estimation
Medication management during risk of dehydration: A qualitative study among elderly patients with impaired renal function and informal caregivers
Creators: name: Coppes, Tristan
name: Philbert, Daphne
name: Van Riet, Mijke
name: van Gelder, Teun
name: Bouvy, Marcel
name: Koster, Ellen
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Patients with impaired renal function are at an increased risk of dehydration due to vomiting, diarrhoea or fever (so-called sick days). Temporary medication adjustment during sick days is necessary and current initiatives and information materials for patients are available. However, the knowledge, experiences and information needs of patients and informal caregivers about sick day guidance are unknown. To gain insight into the understanding of safe medication use during periods of dehydration risk in elderly patients with impaired renal function and their informal caregivers. Qualitative interview study with patients with impaired renal function and unrelated informal caregivers from three community pharmacies in the Netherlands. The interviews were conducted by telephone or live by two researchers in November 2020–September 2021 and audiotaped and transcribed verbatim. The coding of transcripts was performed deductively and inductively in Nvivo 12, a thematic analysis was applied. In total 12 patients and 11 unrelated informal caregivers were included. Three main themes were derived from the interview guide and subthemes emerged from the transcripts. The included patients and informal caregivers had limited knowledge about medication management during sick days. In contrast to patients, informal caregivers seemed interested in a medication management protocol for sick days. Patients with impaired renal function and informal caregivers have little knowledge about and experience with dehydration and safe use of medication during sick days. General practitioners and pharmacists should involve the care network, including informal caregivers, when implementing sick day guidance. Elderly patients and informal caregivers seem to have little knowledge about medication adjustments during sick days or heatwaves Informal caregivers appear to be more interested than patients in information about medication management on sick days GPs should involve informal caregivers in providing information on medication management during risk of dehydration.
The Data You Document are the Data We Love
Creators: name: Méndez, Eva
name: Davidson, Joy
name: Silberer, Zsolt
name: Stall, Shelley
Publisher: name: Zenodo
Year: 2021

description: This seminar is part of a series to provide societies and their journals with information and resources to help their communities be more knowledgeable and prepared to share data (and software) in a way that is relevant and meaningful for each discipline. This is a 12-month series. The Data You Document are the Data We Love 5 November 2021, 10am ET (1400 UTC) Speakers: Joy Davidson, Coordinator, Digital Curation Centre (DCC) Eva Méndez, Associate Professor, Universidad Carlos III de Madrid Moderator: Zsolt Silberer, Director of Publishing, Ecological Society of America Description: Our research data are critical to our work. We don’t always document them as well as we should. If we restructure our thinking that our research data are just as important a contribution to the scientific record as our peer-reviewed papers, then what would “well-documented” data look like? Our speakers Joy Davidson and Eva Méndez will share current work on helping researchers improve their data documentation (i.e., metadata) and give us reasonable steps as societies to help encourage our researchers with their own documentation practices. Seminar Recording: https://youtu.be/SoFxBN-Jnbg
description: Special thank you to Laura Lyon of AGU and her support organizing and managing this seminar.
Friction induced vibrations in a hydraulically driven system
Creators: name: Johannes, Veikko Ilmari
Publisher: name: University of British Columbia
Year: 2011

description: A study has been made of the behaviour of a hydraulic-ally driven system subject to friction induced oscillations. An experimental apparatus consisting of a heavy mass driven by a hydraulic ram was constructed. A mathematical model for the system was derived, and its validity was shown by comparison with experimental results. Studies were subsequently carried out with the mathematical model to determine the effects of varying system parameters and to verify the validity of simplifications in the governing equations. It was found that in general the effect of leakage at the piston should be negligible, and that the variation in behaviour with piston location can be predicted by a simple system stiffness correction. The effect of changing most parameters is to change the rate of tangential load application for a given average velocity of traverse, and the resulting behaviour can be predicted from the static friction relationship that has been proposed. A detailed study was made of the nature of the friction forces in effect during a stick-slip process. A relation, for the variation of the static coefficient of friction which appears more accurate than previous time of contact dependent formulations has been found. In the case of the kinetic coefficient of friction, a gradual decrease from the static value was found at the inception of slip. This has been observed before but generally it has not been recognized by investigators of stick-slip. Simple models have been given for both the static and kinetic friction behaviour. These may be useful as guide in further research into the fundamental nature of friction.
The economics of label misperception in food markets
Creators: name: Scott, Francisco A.
name: Sesmero, Juan Pablo
name: Scott, Francisco A.
name: Sesmero, Juan Pablo
Publisher: name: Unknown
Year: 2020
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Agricultural and Food Policy

description: Presentation18136
Orbifolds, fuzzy spheres and chiral fermions
Creators: name: Chatzistavrakidis, Athanasios
name: Steinacker, Harold
name: Zoupanos, George
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Starting with a N=4 supersymmetric Yang-Mills theory in four dimensions with gauge group SU(3N) we perform an orbifold projection leading to a N=1 supersymmetric SU(N)^3 Yang-Mills theory with matter supermultiplets in bifundamental representations of the gauge group, which is chiral and anomaly free. Subsequently, we search for vacua of the projected theory which can be interpreted as spontaneously generated twisted fuzzy spheres. We show that by adding the appropriate soft supersymmetry breaking terms we can indeed reveal such vacua. Three cases are studied, where the gauge group is spontaneously broken further to the low-energy gauge groups SU(4)xSU(2)xSU(2), SU(4)^3 and SU(3)^3. Such models behave in intermediate scales as higher-dimensional theories with a finite Kaluza-Klein tower, while their low-energy physics is governed by the corresponding zero-modes and exhibit chirality in the fermionic sector. The most interesting case from the phenomenological point of view turns out to be the SU(3)^3 unified theory, which has several interesting features such as (i) it can be promoted to a finite theory, (ii) it breaks further spontaneously first to the MSSM and then to SU(3)xU(1)_{em} due to its own scalar sector, i.e. without the need of additional superfields and (iii) the corresponding vacua lead to spontaneously generated fuzzy spheres.
description: 24 pages, minor changes, references added, matching with the published version
Additional file 2 of Prognostic landscape of mitochondrial genome in myelodysplastic syndrome after stem-cell transplantation
Creators: name: Dong, Jing
name: Buradagunta, Christopher Staffi
name: Zhang, Tao
name: Spellman, Stephen
name: Bolon, Yung-Tsi
name: DeZern, Amy E.
name: Gadalla, Shahinaz M.
name: Deeg, H. Joachim
name: Nazha, Aziz
name: Cutler, Corey
name: Cheng, Chao
name: Urrutia, Raul
name: Auer, Paul
name: Saber, Wael
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Virology

description: Additional file 2. Supplementary Tables.
$F$-wave pairing of cold atoms in optical lattices
Creators: name: Lee, Wei-Cheng
name: Wu, Congjun
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The tremendous development of cold atom physics has opened up a whole new opportunity to study novel states of matter which are not easily accessible in solid state systems. Here we propose to realize the $f$-wave pairing superfluidity of spinless fermions in the $p_{x,y}$-orbital bands of the two dimensional honeycomb optical lattices. The non-trivial orbital band structure rather than strong correlation effects gives rise to the unconventional pairing with the nodal lines of the $f$-wave symmetry. With a confining harmonic trap, zero energy Andreev bound states appear around the circular boundary with a six-fold symmetry. The experimental realization and detection of this novel pairing state are feasible.
description: 9 pages, 5 figures
An application of geographically weighted quantile LASSO to weather index insurance design
Creators: name: Lima Miquelluti, Daniel
name: Ozaki, Vitor
name: Miquelluti, David J.
name: Lima Miquelluti, Daniel
name: Ozaki, Vitor
name: Miquelluti, David J.
Publisher: name: Unknown
Year: 2020
Subjects: Agricultural Finance
Risk and Uncertainty
Research Methods/Statistical Methods

description: Presentation18139
Thermodynamics as a nonequilibrium path integral
Creators: name: Sadhukhan, Poulomi
name: Bhattacharjee, Somendra M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Thermodynamics is a well developed tool to study systems in equilibrium but no such general framework is available for non-equilibrium processes. Only hope for a quantitative description is to fall back upon the equilibrium language as often done in biology. This gap is bridged by the work theorem. By using this theorem we show that the Barkhausen-type non-equilibrium noise in a process, repeated many times, can be combined to construct a special matrix ${\cal S}$ whose principal eigenvector provides the equilibrium distribution. For an interacting system ${\cal S}$, and hence the equilibrium distribution, can be obtained from the free case without any requirement of equilibrium.
description: 15 pages, 5 eps files. Final version to appear in J Phys. A
Will the Folly of Protectionism Affect the Global Rice Bowl in the Future?
Creators: name: Bairagi, Subir K.
name: Durand-Morat, Alvaro
name: Chavez, Eddie C.
name: Wailes, Eric J.
name: Bairagi, Subir K.
name: Durand-Morat, Alvaro
name: Chavez, Eddie C.
name: Wailes, Eric J.
Publisher: name: Unknown
Year: 2020
Subjects: International Relations/Trade
International Development
Agricultural and Food Policy

description: Presentation18143
Appropriateness of intended antibiotic prescribing using clinical case vignettes in primary care, and related factors
Creators: name: Delory, Tristan
name: Maillard, Alexis
name: Tubach, Florence
name: Böelle, Pierre-Yves
name: Bouvet, Elisabeth
name: Lariven, Sylvie
name: Jeanmougin, Pauline
name: Le Bel, Josselin
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Factors associated with the appropriateness of antibiotic prescribing in primary care have been poorly explored. In particular, the impact of computerised decision-support systems (CDSS) remains unknown. We aim at investigating the uptake of CDSS and its association with physician characteristics and professional activity. Since May 2022, users of a CDSS for antibiotic prescribing in primary care in France have been invited, when registering, to complete three case vignettes assessing clinical situations frequently encountered in general practice and identified as at risk of antibiotic misuse. Appropriateness of antibiotic prescribing was defined as the rate of answers in line with the current guidelines, computed by individuals and by specific questions. Physician’s characteristics associated with individual appropriate antibiotic prescribing (< 50%, 50–75% and > 75% appropriateness) were identified by multivariate ordinal logistic regression. In June 2023, 60,067 physicians had registered on the CDSS. Among the 13,851 physicians who answered all case vignettes, the median individual appropriateness level of antibiotic prescribing was 77.8% [Interquartile range, 66.7%–88.9%], and was < 50% for 1,353 physicians (10%). In the multivariate analysis, physicians’ characteristics associated with appropriateness were prior use of the CDSS (OR = 1.71, 95% CI 1.56–1.87), being a general practitioner vs. other specialist (OR = 1.34, 95% CI 1.20–1.49), working in primary care (OR = 1.14, 95% CI 1.02–1.27), mentoring students (OR = 1.12, 95% CI 1.04–1.21) age (OR = 0.69 per 10 years increase, 95% CI 0.67–0.71). Individual appropriateness for antibiotic prescribing was high among CDSS users, with a higher rate in young general practitioners, previously using the system. CDSS could improve antibiotic prescribing in primary care. Individual appropriateness for antibiotic prescribing is high among CDSS users. CDSS use could passively improve antibiotic prescribing in primary care. Factors associated with appropriateness for antibiotic prescribing for primary care diseases are: prior use of CDSS, general practice speciality vs. other specialities, younger age and mentoring of students.
A Solution to Non-Linear Equations of Motion of Nambu-Goto String
Creators: name: Bollini, C. G.
name: Rocca, M. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we solve the non-linear Lagrange's equations for the Nambu-Goto closed bosonic string. We show that Ultradistributions of Exponential Type (UET) are appropriate for the description in a consistent way string and string field theories. We also prove that the string field is a linear superposition of UET of compact support (CUET), and give the notion of anti-string. We evaluate the propagator for the string field, and calculate the convolution of two of them.
description: 31 pages. No figures.Title has changed. Text has changed. arXiv admin note: text overlap with arXiv:0811.2815
Mortgage Owned by Isaac Edwards, "Barns Hole", February 8, 1862
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1862
Subjects: Edwards Family
Mortgages
Clippings

description: This clipping notice discusses the mortgage default by Daniel Edwards and his wife, Mehitable, of East Hampotn to Isaac Edwards, Isaac Barnes, and Thomas J. Mulford, dated for February 8, 1862. This item is part of the Isaac Edwards Deed Collection, donated by Bess Rattray in December 2020.
The maximum and minimum mass of protoneutron stars in the Brueckner theory
Creators: name: Burgio, G. F.
name: Schulze, H. -J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the structure of protoneutron stars within the finite-temperature Brueckner-Bethe-Goldstone theoretical approach, paying particular attention to how it is joined to a low-density nuclear equation of state (EOS). We find a slight sensitivity of the minimum value of the protoneutron star mass on the low-density equation of state, whereas the maximum mass is hardly affected.
description: 8 pages, 8 figures
Galactic Nonlinear Dynamic Model
Creators: name: de Melo, C. A. M.
name: Resende, S. T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We develop a model for spiral galaxies based on a nonlinear realization of the Newtonian dynamics starting from the momentum and mass conservations in the phase space. The radial solution exhibits a rotation curve in qualitative accordance with the observational data.
description: 6 pages, 1 figure. Talk given in the 7th Alexander Friedmann International Seminar, June 29 to July 5, 2008, Joao Pessoa, PB, Brazil
Payroll Receipt on Sloop Harriet for Charles Bennet, November 19, 1829
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1829
Subjects: Edwards Family
Paying bills
Debt
Wages

description: This is a receipt describing the days worked and rate of pay for or from Charles Bennet in relation to the Sloop Harriet. dated for November, 19, 1829. This item is part of the Isaac Edwards Deed Collection, donated by Bess Rattray in December 2020.
Dynamics of a trapped Brownian particle in shear flows
Creators: name: Holzer, Lukas
name: Bammert, Jochen
name: Rzehak, Roland
name: Zimmermann, Walter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Brownian motion of a particle in a harmonic potential, which is simultaneously exposed either to a linear shear flow or to a plane Poiseuille flow is investigated. In the shear plane of both flows the probability distribution of the particle becomes anisotropic and the dynamics is changed in a characteristic manner compared to a trapped particle in a quiescent fluid. The particle distribution takes either an elliptical or a parachute shape or a superposition of both depending on the mean particle position in the shear plane. Simultaneously, shear-induced cross-correlations between particle fluctuations along orthogonal directions in the shear plane are found. They are asymmetric in time. In Poiseuille flow thermal particle fluctuations perpendicular to the flow direction in the shear plane induce a shift of the particle's mean position away from the potential minimum. Two complementary methods are suggested to measure shear-induced cross-correlations between particle fluctuations along orthogonal directions.
description: 14 pages, 7 figures