cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Classifying Luyten Stars Using An Optical-Infrared Reduced Proper Motion Diagram
Creators: name: Salim, Samir
name: Gould, Andrew
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a V-J reduced proper motion (RPM) diagram for stars in the New Luyten Two-Tenths (NLTT) catalog. In sharp contrast to the RPM diagram based on the original NLTT data, this optical-infrared RPM diagram shows distinct tracks for white dwarfs, subdwarfs, and main-sequence stars. It thereby permits the identification of white-dwarf and subdwarf candidates that have a high probability of being genuine.
description: Accepted ApJL version. 3 figures (2 in color). Table of candidate new WDs closer than 20 pc is now included
How long is the convex minorant of a one-dimensional random walk?
Creators: name: Alsmeyer, Gerold
name: Kabluchko, Zakhar
name: Marynych, Alexander
name: Vysotsky, Vladislav
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60G55 (Primary), 60J10 (Secondary)

description: We prove distributional limit theorems for the length of the largest convex minorant of a one-dimensional random walk with independent identically distributed increments. Depending on the increment law, there are several regimes with different limit distributions for this length. Among other tools, a representation of the convex minorant of a random walk in terms of uniform random permutations is utilized.
description: 21 pages, 1 figure, to appear in the Electronic Journal of Probability
Careproctus inflexidens Andriashev & Stein 1998
Creators: name: Stein, David L.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Scorpaeniformes
Liparidae
Careproctus
Careproctus inflexidens

description: Careproctus inflexidens Andriashev & Stein 1998
Figs. 6, 7
 Careproctus inflexidens Andriashev & Stein 1998:26, Fig. 26; Andriashev 2003:127, Figs. 63, 64.
 Holotype. LACM 11142–1, female, 220 mm TL, 200 mm SL, 75°52' S, 168°53' W, USNS Eltanin, Stn. 2091, 3 Feb. 1968, 2049– 2089 m.
 Material examined. Holotype.
 Expanded diagnosis. Counts. V 64 (8+56), D 60, A 54, C 10 (1+4/4+1), P 26 (16+3+7), radials 4 (3+1), gr 6, pc 6, pores 2–6–7–1. Ratios. HL 16.5, HW ~14.5, sn 5.2, E 3.3, orbit 5.5, io 7.0, uj 6.0, go 3.0, md 7.7, disk 6.5, da 5.9, bd 18.5, preD 23.5, preA 33.3, sna 22.5, ma 20.0, aAf 10.8, UPL 12.0, LPL ~19, pcl 4.0–7.5% SL. In % HL: HW 89.5, sn 31, E 19.7, orbit 34.1, io 42, go 18.0, disk 39.4, ma 126.6, da 35.5, aAf 66.9, UPL 73, LPL 120.4.
Head short, broad, its width and depth similar, slightly less than its length. Snout blunt, short, not projecting. Nostril with appearance of a large pore without raised rim. Mouth terminal, horizontal, upper jaw extending to below anterior margin of eye. Teeth simple, strong, recurved closely set canines forming a broad band of oblique rows; symphyseal gaps absent in both jaws. Lower jaw teeth larger, blunter. Eye and orbit small. Gill opening short, entirely above pectoral fin base. Pectoral fin upper lobe deeply notched, rudimentary rays absent, lower lobe longer than upper, its ventralmost ray far forward, below front of eye. Radials irregularly rounded; scapula without helve, blade with posterior notch; coracoid with long slender helve, basal notch absent. Disk large, segments and margin well developed, distinctly wider than long, its length more than 1/3 HL. Anus distant from posterior margin of disk. Two pair of pleural ribs present. Hypural plate fused, unslit. Body dark dusky or blackish anteriorly, opaque pinkish-white caudally; orobranchial cavity dusky, peritoneum black, stomach and caeca pale.
 Distribution. Known from a single specimen taken by bottom trawl in the northeastern Ross Sea at 2049–2089 m.
 Comparisons. This species’ large number of vertebrae (64), dorsal (60), and anal fin (54) rays and its short head (16.5% SL) distinguish it from most Southern Ocean Careproctus (V 46–54, D 41–48, A 33–45, HL 28–32% SL). It is similar to the South African C. albescens Barnard 1927, but differs in many characters including fewer pectoral fin rays (26 vs 33–35), hypural plate structure (undivided vs divided), pectoral radials (round, unnotched vs notched), and peritoneum color (black vs brown). Its short head is similar to C. leptorhinus Andriashev & Stein 1998 from off Burdwood Bank, but it differs in tooth shape (simple vs trilobed), radials (four unnotched vs two, R1 notched) and other characters.
description: Published as part of Stein, David L., 2012, Snailfishes (Family Liparidae) of the Ross Sea, Antarctica, and Closely Adjacent Waters 3285, pp. 1-120 in Zootaxa 3285 on page 17, DOI: 10.5281/zenodo.283120
title: Exciting Novel Polyaspartates: Design, Synthesis, and Photo‐Responsive Behavior in Solution and Lyotropic Liquid Crystalline Phase Upon Irradiation with Visible Light
Creators: name: Hossain, Rimjhim
name: Thiele, Christina M.
Publisher: name: Wiley-VCH
Year: 2025

description: Many polypeptides form stable, helical secondary structures enabling the formation of lyotropic liquid crystalline (LLC) phases. Contrary to the well‐studied polyglutamate, their counterparts based on polyaspartates exhibit a much lower helix inversion barrier. Therefore, the helix sense is not solely dictated by the chirality of the amino acid used, but additionally by the nature and conformation of the polymer sidechain. In this work, polymers responsive to irradiation with visible light are designed achieving conformational transitions from helix‐to‐coil and helix‐to‐helix. The synthesis and the application as LLC mesogens of several (co‐)polyaspartates bearing ortho‐fluorinated azobenzene (FAB) as a photochromic group are presented. Many of the obtained polymers undergo changes in their secondary structure upon E‐Z‐isomerization of the FAB‐containing sidechain. Of special interest are copolymers that exhibit photo‐responsive helix inversion without loss of their helical secondary structure. These copolymers form stable LLC phases in helicogenic solvents, where the effect of photo‐switching on the macroscopic behavior is studied by NMR spectroscopy. Especially, the irradiation of the different LLC phases of the helix inversion polymers displays a change in the LLC order experienced by the solvent. These peculiar properties are promising for future applications as photo‐responsive alignment media for structure elucidation in NMR.
Capital, Ownership, and Governance: Analyzing the Structure of U.S. Farmer Cooperatives
Creators: name: Grashuis, Jasper
name: Cook, Michael
name: Grashuis, Jasper
name: Cook, Michael
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: Capital Structure
subject: Agricultural Cooperative
subject: Survey Data
subject: Ordered Probit

description: The interrelationship of capital, ownership, and governance in U.S. farmer cooperatives is not well-understood. In order to better conceptualize the overall structure of farmer cooperatives, a new framework is constructed with member ownership diversity, member control delegation, and financial flexibility as its three dimensions. Primary survey data on 371 U.S. farmer cooperatives is collected and analyzed to discover moderate to strong correlation coefficients for ownership and governance (0.27), ownership and capital (0.33), and governance and capital (0.51). An ordered probit model is specified and estimated for each structure. The empirical relationship of member ownership diversity and member control delegation is characterized by bi-directionality, which implies endogeneity must be addressed in future research. On the whole, the ownership structure and the capital structure are independent, although the probability of financial flexibility is increased by outside investment in subsidiary organizations. In terms of governance, delegation of real control from board directors to senior managers has a positive impact on the capital structure. Most hypotheses, as informed by agency, finance, and cooperative theory, are accepted, suggesting the three-dimensional framework has merit.
ТЕМА: Individual project on theme «Humulus L., 1753» (MOOC: CompTech in biology)
Creators: name: Zhelonkina, Yulia
Publisher: name: Zenodo
Year: 2024
Subjects: хмель
Humulus L.

description: Данный кейс является результатом реализации индивидуального проекта Желонкиной Юлии по теме "Humulus L., 1753" в рамках онлайн курса "Компьютерные технологии в биологии" (автор – А.В. Ваганов) (https://stepik.org/course/60859/promo)
Stacking a 4D geometry into an Einstein-Gauss-Bonnet bulk
Creators: name: Barcelo, Carlos
name: Maartens, Roy
name: Sopuerta, Carlos F.
name: Viniegra, Fermin
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In Einstein gravity there is a simple procedure to build D-dimensional spacetimes starting from (D-1)-dimensional ones, by stacking any (D-1)-dimensional Ricci-flat metric into the extra-dimension. We analyze this procedure in the context of Einstein-Gauss-Bonnet gravity, and find that it can only be applied to metrics with a constant Krestschmann scalar. For instance, we show that solutions of the black-string type are not allowed in this framework.
description: 8 pages, no figures; some references added and other minor modifications to match the PRD accepted version
Scanning Tunneling Shot Noise Spectroscopy in Kondo Systems
Creators: name: Cocklin, Sagen
name: Morr, Dirk K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a large-N theory in combination with the Keldysh non-equilibrium Greens function formalism, we investigate the current, differential conductance, zero-frequency shot-noise and Fano factor as measured by scanning tunneling shot noise spectroscopy (STSNS) using a scanning tunneling microscope (STM) near single Kondo impurities and in Kondo lattices. We show that the Fano factor $F$ exhibits a characteristic bias dependence arising from Kondo screening that is similar to the Kondo resonance observed in the differential conductance. Moreover, the lineshape of $F$ is strongly dependent on the ratio of the tunneling amplitudes for electron tunneling from the STM tip into the conduction band and electronic levels of the magnetic adatoms. We demonstrate that the Fano factor can be enhanced or suppressed due to interference effects and as such, is not only a sensitive probe for the correlation effects arising from Kondo screening, but also for quantum interference between tunneling electrons. We identify a correlation between the form of the differential conductance and the Fano factor that could be tested in future STSNS experiments.
description: 8 pages, 10 figures
Arithmetic of Plane Cremona Transformations and the Dimensions of Transfinite Heterotic String Space-Time
Creators: name: Saniga, Metod
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is shown that the two sequences of characteristic dimensions of transfinite heterotic string space-time found by El Naschie can be remarkably well accounted for in terms of the arithmetic of self-conjugate homaloidal nets of plane algebraic curves of orders 3 to 20. A firm algebraic geometrical justification is thus given not only for all the relevant dimensions of the classical theory, but also for other two dimensions proposed by El Naschie, viz. the inverse of quantum gravity coupling constant (~42.36067977) and that of (one half of) fine structure constant (~68.54101967). A non-trivial coupling between the two El Naschie sequences is also revealed.
description: 4 pages, no figures, accepted in Chaos, Solitons & Fractals
Potential overtreatment in elderly patients with diabetes mellitus: Results from a cross-sectional study in German general practice
Creators: name: Weise, Solveig
name: Oelschläger, Christiane
name: Unverzagt, Susanne
name: Abendroth, Jens
name: Heise, Marcus
name: Frese, Thomas
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health

description: It is important for general practitioners (GPs) to protect elderly patients with diagnosis of diabetes type 2 (DM2) from overtreatment. To analyse the metabolic control and treatment of elderly patients with DM2 in general practices. This cross-sectional study involved 46 general practices in a federal state of Germany. Inclusion criteria for patients were diagnosis of DM2, age of 70 years or above, no palliative care and at least one practice contact within the last six months. A study nurse randomly selected 10 eligible patients and extracted data on haemoglobin A1c (HbA1c), diabetes treatment, secondary prevention and GP’s characteristics. Risk of overtreatment was defined as having a HbA1c <47.5 mmol/mol (6.5%) and receiving glucose-lowering drugs, and overtreatment as being at risk of overtreatment and being aged 80 years or above or living in a nursing home. Among 460 participants, 36.0% received oral-antidiabetic drugs, 16.7% insulin, 16.2% both and 31.1% received diet/exercise. Overtreatment occurred in 12% of elderly patients with DM2, risk of overtreatment in 24%. Overtreatment was significantly associated with urban residency (OR 2.17). Female elderly patients with DM2 were significantly less often at risk of overtreatment (OR 0.59). Cluster effects were evident between general practices’ treatment and monitoring of elderly patients with DM2 in quantitative data. Overtreatment is a relevant problem in elderly patients with DM2 for which GPs should regularly check and start deprescribing. Cluster effects suggest heterogeneity between general practices in diabetes management and monitoring. In our study in German general practice, 12% of elderly patients with DM2 were overtreated, 24% were at risk of overtreatment. GPs should regularly check for overtreatment and consequently start deprescribing. Policymakers may support these efforts by addressing overtreatment in chronic care programs and by ensuring adequate reimbursement.
Getting your work on quality and safety published – ​top tips from the editor-in-chief of IJQHC
Creators: name: Sheikh, Aziz
Publisher: name: Royal College of Surgeons in Ireland
Year: 2025
Subjects: classificationCode: 420317
subject: Patient safety
classificationCode: 350715
subject: Quality management
classificationCode: 350505
subject: Occupational and workplace health and safety

description: A paper presented at the Quality Improvement and Patient Safety Research Symposium, RCSI University of Medicine and Health Sciences, 3 March 2025
How to Pare a Pair: Topology Control and Pruning in Intertwined Complex Networks
Creators: name: Kramer, Felix
name: Modes, Carl D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Recent work on self-organized remodeling of vasculature in slime-mold, leaf venation systems and vessel systems in vertebrates has put forward a plethora of potential adaptation mechanisms. All these share the underlying hypothesis of a flow-driven machinery, meant to alter rudimentary vessel networks in order to optimize the system's dissipation, flow uniformity, or more, with different versions of constraints. Nevertheless, the influence of environmental factors on the long-term adaptation dynamics as well as the networks structure and function have not been fully understood. Therefore, interwoven capillary systems such as found in the liver, kidney and pancreas, present a novel challenge and key opportunity regarding the field of coupled distribution networks. We here present an advanced version of the discrete Hu--Cai model, coupling two spatial networks in 3D. We show that spatial coupling of two flow-adapting networks can control the onset of topological complexity in concert with short-term flow fluctuations. We find that both fluctuation-induced and spatial coupling induced topology transitions undergo curve collapse obeying simple functional rescaling. Further, our approach results in an alternative form of Murray's law, which incorporates local vessel interactions and flow interactions. This geometric law allows for the estimation of the model parameters in ideal Kirchhoff networks and respective experimentally acquired network skeletons.
Genioliparis Andriashev & Neelov 1976
Creators: name: Stein, David L.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Scorpaeniformes
Liparidae
Genioliparis

description: Genus Genioliparis Andriashev & Neelov 1976
 Genioliparis Andriashev & Neelov 1976. Type species Genioliparis lindbergi Andriashev & Neelov 1976 by designation.
 Diagnosis (modified from Balushkin & Voskoboinikova, 2008). One pair of nostrils. Disk, pseudobranchs, and pleural ribs absent. Branchiostegal rays six. Head large. Mouth large, terminal; lower jaw massive. Teeth simple, sharp, often depressible canines. Mandible to anus distance half or more of mandible to anal fin origin distance. Barbels on snout present. Three species known: G. lindbergi Andriashev and Neelov 1976 (South Shetland Islands), G. ferox (Stein 1978) (northeastern Pacific), and G. kafanovi Balushkin & Voskoboinikova 2008 (Ross Sea).
description: Published as part of Stein, David L., 2012, Snailfishes (Family Liparidae) of the Ross Sea, Antarctica, and Closely Adjacent Waters 3285, pp. 1-120 in Zootaxa 3285 on page 24, DOI: 10.5281/zenodo.283120
Relativity of representations in quantum mechanics
Creators: name: de la Torre, A. C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Only the position representation is used in introductory quantum mechanics and the momentum representation is not usually presented until advanced undergraduate courses. To emphasize the relativity of the representations of the abstract formulation of quantum mechanics, two examples of representations related to the operators aX+(1-a)P and (XP+PX)/2 are presented.
description: 10 pages, no figures, accepted in Am.J.Phys
Mapping hot-pressed Li6.25Al0.25La3Zr2O12 (LLZO) grains and grain boundaries through a simple thermal grooving technique
Creators: name: Sato, Masumi
name: Garcia-Mendez, Regina
name: Sakamoto, Jeff
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Li6.25Al0.25La3Zr2O12 (LLZO) is one of the most promising solid-state electrolytes due to its electrochemical and chemical stability against metallic Li and high ionic conductivity at room temperature. Despite its favorable attributes, it has been shown that Li metal can penetrate LLZO above a critical current density (CCD). Currently, the mechanism by which this phenomenon occurs has not been completely elucidated. However, microstructural defects such as grain boundaries have been pointed out as one of the defects where Li metal preferentially propagates. Thus, microstructural characterization techniques that do not require extensive sample preparation are valuable to correlate processing conditions with resulting microstructure and properties. In this work, a thermal grooving process was optimized to minimize lithium loss allowing to visualize and study the microstructure of LLZO. The proposed technique does not require extensive sample preparation such as what is required for electron backscattering diffraction (EBSD). Variables such as temperature and atmosphere were tuned to optimize thermal grooving while maintaining phase purity (91.4 wt %). We believe this simple method to visualize grains and grain boundaries will help guide efforts to correlate processing conditions with electrolyte properties and ultimately move forward to enable solid-state battery technology.
Comparisons on fluid-solid heat transfer simulation for localized fire resistance
Creators: name: Zhou, Xuanyi
name: Zhou, Jinggang
name: Cong, Beihua
name: Wang, Wei
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400507
subject: Fire safety engineering
classificationCode: 400510
subject: Structural engineering

description: A research idea of multi-physics field coupling can be used to solve the structural fire resistance problem. Most of the previous CFD-FEM numerical simulations in structural fire resistance studies apply adiabatic surface temperature (AST) to accurately describe the complex fire analysis boundary conditions, and this methodology belongs to the use of iterative coupling methods to achieve fluid-solid heat transfer coupling. However, there is less application for another direct two-way coupling method. In this paper, a 2.5-meter-high square steel tube column is selected to investigate the thermodynamic phenomena when surrounding by fire plume. Based on CFD code, the thermal-mechanical coupling in fluid domain is firstly realized, and then the fluid-solid thermal coupling is realized by using iterative coupling method (AST method) and direct coupling method (Conjugate heat transfer method, CHT method) respectively, and the accuracy of this two coupling methodology is verified by comparing with experimental data. The heat flux received at the column surface is analyzed in the CHT method while the characteristics of the AST parameters are analyzed in the AST method. Finally, the mechanical analysis is completed with the solid temperature as the boundary condition and the thermal-mechanical coupling in solid domain is realized.
The Star Formation History and Mass Function of the Double Cluster h and Chi Persei
Creators: name: Slesnick, Catherine L.
name: Hillenbrand, Lynne A.
name: Massey, Philip
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The h and Chi Per "double cluster" is examined using wide-field (0.98 deg x 0.98 deg) CCD UBV imaging supplemented by optical spectra of several hundred of the brightest stars. Restricting our analysis to near the cluster nuclei, we find identical reddenings (E(B-V)=0.56+/-0.01), distance moduli (11.85+/-0.05), and ages (12.8+/-1.0 Myr) for the two clusters. In addition, we find an IMF slope for each of the cluster nuclei that is quite normal for high-mass stars, Gamma=-1.3+/-0.2, indistinguishable from a Salpeter value. We derive masses of 3700 M_Sun (h) and 2800 M_Sun (Chi) integrating the PDMF from 1 to 120 M_Sun. There is evidence of mild mass segregation within the cluster cores. Our data are consistent with the stars having formed at a single epoch; claims to the contrary are very likely due to the inclusion of the substantial population of early-type stars located at similar distances in the Perseus spiral arm, in addition to contamination by G and K giants at various distances. We discuss the uniqueness of the double cluster, citing other examples of such structures in the literature, but concluding that the nearly identical nature of the two cluster cores is unusual. We fail to settle the long-standing controversy regarding whether or not the double cluster is the core of the Per OB1 association, and argue that this may be unanswerable with current techniques. We also emphasize the need for further work on the pre-main sequence population of this nearby and highly interesting region.
description: Accepted for publication in ApJ. 19 pages of text, 9 figures, 4 tables
Validation of obesity coding among newly treated nonvalvular atrial fibrillation patients using an integrated electronic medical record and claims database
Creators: name: Jain, Rahul
name: Watzker, Anna
name: Xuemei Luo
name: Amiee L. Kang
name: Baker, Christine L.
name: Rosenblatt, Lisa
name: Mardekian, Jack
name: Menzin, Joseph
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Objective: To evaluate the validity of diagnosis codes for identifying obesity and morbid obesity among newly treated nonvalvular atrial fibrillation (NVAF) patients. Methods: An integrated electronic medical record (EMR) and claims database (1 January 2013–31 March 2018) was used. Adult patients with ≥1 claim for an oral anticoagulant (OAC) from 1 January 2014–30 September 2017 were identified (index date). Patients were required to have ≥1 atrial fibrillation diagnosis, no OAC use or valvular disease during the 12 months before index date, ≥12 months of continuous enrollment before and ≥6 months after index date, and ≥1 BMI measurement 6 months before or after index date. Patients with BMI ≥30 kg/m2 and BMI ≥40 kg/m2 were classified as obese and morbidly obese, respectively. Sensitivity, specificity and positive predictive value (PPV) were calculated to assess the validity of diagnosis codes for obesity and morbid obesity. Results: A total of 7501 patients met all selection criteria. Forty-six percent of patients had BMI ≥ 30 kg/m2, of whom about one-quarter had a BMI ≥ 40 kg/m2. Twenty-five percent and 10% of patients had a diagnosis code for obesity or morbid obesity, respectively. Sensitivity, specificity and PPV for obesity diagnosis codes were 48.67% (95% CI: 47.00%–50.35%), 95.24% (94.54%–95.88%) and 89.78% (88.32%–91.12%), respectively, and 62.75% (59.30%–66.11%), 96.46% (95.99%–96.89%) and 67.93% (64.43%–71.29%) for morbid obesity diagnosis codes, respectively. Conclusion: Among newly treated NVAF patients, obesity diagnosis codes had high PPV, high specificity and modest sensitivity. Morbid obesity diagnosis codes also had high specificity, but modest PPV and sensitivity. These findings have implications for case selection and control for obesity as a confounder in studies using a claims database.
The State of the Dark Energy Equation of State
Creators: name: Melchiorri, Alessandro
name: Mersini, Laura
name: Odman, Carolina J.
name: Trodden, Mark
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By combining data from seven cosmic microwave background experiments (including the latest WMAP results) with large scale structure data, the Hubble parameter measurement from the Hubble Space Telescope and luminosity measurements of Type Ia supernovae we demonstrate the bounds on the dark energy equation of state $w_Q$ to be $-1.38< w_Q
description: 7 pages, 4 figures, added a reference
Study on buckling and critical temperatures of H-section steel columns under fire considering dynamic effect
Creators: name: Chen, Zhengrong
name: Yin, Zhongyuan
name: Wang, Liping
name: Jiang, Binhui
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400507
subject: Fire safety engineering
classificationCode: 400510
subject: Structural engineering

description: In this paper, the buckling and critical temperatures of H-section steel columns under fire were studied by parametric analysis. The finite element model of the steel column was verified by test data in literatures. The considered parameters include rotational restraint stiffness ratio (βR), axial restraint stiffness ratio (βl), and load ratio (ρN). Besides, the buckling and critical temperatures of steel columns under static analysis and explicit dynamic analysis were compared. It was found that the buckling temperatures obtained by these two analysis methods were almost the same, while the critical temperatures obtained by static analysis were slightly less than that obtained by explicit dynamic analysis, and the difference was within 30 ℃. The results of parametric analysis show that the buckling and critical temperatures increased with the increase of βR, and βR had greater influence on the critical temperature. In addition, with the increase of βl and ρN, the buckling and critical temperatures of the steel columns both decreased significantly. Finally, the buckling and critical temperatures obtained from the parametric analysis were compared with the existing calculation formulas. Results show that predictions of the existing formulas generally agree well with the analysis results.
Representations of the twisted Heisenberg-Virasoro algebra at level zero
Creators: name: Billig, Yuly
Publisher: name: arXiv
Year: 2002
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B68, 17B65

description: We describe the structure of the irreducible highest weight modules for the twisted Heisenberg-Virasoro Lie algebra at level zero. We prove that such a module is either isomorphic to a Verma module or to a quotient of two Verma modules.
description: Minor error corrected
A Generative Model for Molecular Distance Geometry
Creators: name: Simm, Gregor N. C.
name: Hernández-Lobato, José Miguel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Great computational effort is invested in generating equilibrium states for molecular systems using, for example, Markov chain Monte Carlo. We present a probabilistic model that generates statistically independent samples for molecules from their graph representations. Our model learns a low-dimensional manifold that preserves the geometry of local atomic neighborhoods through a principled learning representation that is based on Euclidean distance geometry. In a new benchmark for molecular conformation generation, we show experimentally that our generative model achieves state-of-the-art accuracy. Finally, we show how to use our model as a proposal distribution in an importance sampling scheme to compute molecular properties.
Energetic photoionization of neutral and ionic metal clusters
Creators: name: Chakraborty, Himadri S.
name: Madjet, M. E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We show, with an example of Na_92, that for jellium metal clusters the interference of fast electron-waves emitted from equivalent sites on the cluster edge produces monochromatic oscillations in all photoionization observables as a function of the photoelectron momentum; the effect is equivalent to the usual dispersion phenomenon. In dealing with formalisms, a serious consequence of the inadequacy of self-interaction corrected local density-functional theory in correctly accounting for the exchange interaction is identified. We also briefly discuss the influence of the ionicity of the residual core on photospectra by considering the neutral member with N=58 and and the ionic member with N=52 of the Na_58 iso-jellium series, where N is the number of valence electrons. A few final remarks on possible implications of these results on other quantum systems of delocalized electrons are made.
description: 4 pages, 5 figures, for XIII-NCAMP (IACS-Calcutta, India) proceedings
Do nutrient management plans actually manage nutrients? Evidence from a nationally-representative survey of hog producers
Creators: name: Sneeringer, Stacy
name: Pon, Shirley
name: Sneeringer, Stacy
name: Pon, Shirley
Publisher: name: Unknown
Year: 2016
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: hogs
subject: nutrient management
subject: environment
subject: regulation
subject: livestock

description: A much-touted policy tool to reduce nutrient pollution from livestock agriculture is the nutrient management plan (NMP). NMPs can be voluntary or required, and oblige farms to match the nutrients applied as manure or commercial fertilizer with the absorptive capacity of land and crops. However, little research examines whether these plans are implemented, even if farms have records of having plans. In this paper we use nationally-representative Agricultural and Resource Management Survey (ARMS) data on hog producers to compare the nutrient application practices of farms with and without NMPs to see whether having an NMP makes a farm less likely to over-apply nutrients, as well as to adopt other nutrient management practices. We also examine whether the effect of having an NMP on nutrient management is strengthened by state NMP requirements, proximity to urban areas, regional nutrient balance, and watershed water quality oversight. Our preliminary findings suggest that NMPs are effective in encouraging nutrient testing but not in reducing over application of nutrients to farmland; they have the most effect in states with more stringent regulation.
Silica-coated Fe3O4 magnetic nanoparticles-supported sulfonic acid as a highly active and reusable catalyst in chemoselective deprotection of tert-butyldimethylsilyl (TBDMS) ethers
Creators: name: Javadi, Sayed Hossein
name: Daryoush Zareyee
name: Monfared, Azam
name: Didehban, Khadijeh
name: Mirshokraee, Sayed Ahmmad
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Inorganic Chemistry
subject: Science Policy

description: Anchored propyl sulfonic acid on the surface of silica-coated magnetic nanoparticles (Fe3O4@SiO2@PrSO3H) was successfully employed in the deprotection of TBDMS ethers. The prepared magnetically separable nanocatalyst exhibited efficient catalytic activity with high conversion and selectivity in cleavage of TBDMS ethers. TBDMS ethers are efficiently cleaved to the corresponding hydroxyl compounds in methanol solution containing 2 mol% magnetic nano-catalysts. Good to excellent yields of products, simple work-up and product separation, selective cleavage of TBDMS ethers in the presence of TBDPS ethers, easy recycling of the catalyst with external magnet with no loss in its activity (7 reaction cycles) are important features of this new protocol.
Particle size effect of ZrO2 supports on catalytic liquid-phase oxidation of phenol over Pt/CeO2-ZrO2-Bi2O3/ZrO2 catalysts
Creators: name: Supandi, Abdul Rohman
name: Naoyoshi Nunotani
name: Nobuhito Imanaka
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The size effect of the ZrO2 support on the catalytic activity for the liquid-phase oxidation of phenol was demonstrated over Pt/CeO2-ZrO2-Bi2O3/ZrO2-X catalysts. Here, we selected six types of size-controlled ZrO2-X (X: A–F) (ZrO2-A: 35 nm, ZrO2-B: 22 nm, ZrO2-C: 14 nm, ZrO2-D: 11 nm, ZrO2-E: 9 nm, and ZrO2-F: 2 nm). The surface area of the ZrO2-X support was inversely proportional to the particle size of ZrO2. ZrO2-X (X: A–E) were crystalline phases, while ZrO2-F was amorphous phase. For Pt/CeO2-ZrO2-Bi2O3/ZrO2-X (X: A–E) catalysts, the smaller particle size of the crystalline ZrO2 (X: A–E) support resulted in a larger catalyst surface area, which in turn led to enhanced oxygen release and storage abilities of the CeO2-ZrO2-Bi2O3 promoter, and allowed for the oxidation of Pt0 to Pt2+ with high activity. The highest activity was obtained for the Pt/CeO2-ZrO2-Bi2O3/ZrO2-E catalyst, which had the largest surface area and the highest oxygen release and storage abilities; phenol was completely removed after a reaction time of 10 h at 80°C under atmospheric pressure (0.1 MPa).
Impact of microcredit on small-farm agricultural production: evidence from Brazil
Creators: name: Gori Maia, Alexandre
name: Eusebio, Gabriela S.
name: Silveira, Rodrigo L. F.
name: Gori Maia, Alexandre
name: Eusebio, Gabriela S.
name: Silveira, Rodrigo L. F.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Financial Economics
subject: agricultural production
subject: agricultural microcredit
subject: small farms
subject: propensity score

description: The purpose of this study is to analyze the impact of PRONAF credit program on small-farm agricultural production in Brazil. The study compares farmers’ production value considering the obtainment of PRONAF credit, controlling for farm, farms and production system characteristics. The data set consists of the 2006 Agricultural Census, which considers 5.2 million of small farmers in Brazil. In addition to using multiple linear regression model to estimate the net impact of PRONAF on total production value, we applied a propensity score matching method in order to identify pairs of family farms relatively homogeneous, one that accessed the credit and other that did not, estimating the average difference between their production values. Regression analysis showed that the access to PRONAF had a positive and significant net effect on production value of around 18%. In addition, propensity score matching results seemed to exhibit similar evidence to those obtained by regression model. Farmers that obtained PRONAF microcredit presented a production value higher than others, with the difference ranging from 6% to 20%. The impact is lower in the less developed regions, which is characterized by forestry, subsistence agriculture and low technology adoption. For more developed regions, where farmers are more specialized and integrated in the market, the PRONAF has shown relevant net impacts on the production value.
Figures, Tables from Species packing and the latitudinal gradient in local beta-diversity
Creators: name: Cao, Ke
name: Condit, Richard
name: Mi, Xiangcheng
name: Chen, Lei
name: Ren, Haibao
name: Xu, Wubing
name: Burslem, David F. R. P.
name: Cai, Chunrong
name: Cao, Min
name: Chang, Li-Wan
name: Chu, Chengjin
name: Cui, Fuxin
name: Du, Hu
name: Ediriweera, Sisira
name: Gunatilleke, C. S. V.
name: Gunatilleke, I. U. A. N.
name: Hao, Zhanqing
name: Jin, Guangze
name: Li, Jinbo
name: Li, Buhang
name: Li, Yide
name: Liu, Yankun
name: Ni, Hongwei
name: O'Brien, Michael J.
name: Qiao, Xiujuan
name: Shen, Guochun
name: Tian, Songyan
name: Wang, Xihua
name: Xu, Han
name: Xu, Yaozhan
name: Yang, Libing
name: Yap, Sandra L.
name: Lian, Juyu
name: Ye, Wanhui
name: Yu, Mingjian
name: Su, Sheng-Hsin
name: Chang-Yang, Chia-Hao
name: Guo, Yili
name: Li, Xiankun
name: Zeng, Fuping
name: Zhu, Daoguang
name: Zhu, Li
name: Sun, I-Fang
name: Ma, Keping
name: Svenning, Jens-Christian
Publisher: name: The Royal Society
Year: 2021

description: The decline in species richness at higher latitudes is among the most fundamental patterns in ecology. Whether changes in species composition across space (beta-diversity) contribute to this gradient of overall species richness (gamma-diversity) remains hotly debated. Previous studies that failed to resolve the issue suffered from a well-known tendency for small samples in areas with high gamma-diversity to have inflated measures of beta-diversity. Here, we provide here a novel analytical test, using beta-diversity metrics that correct the gamma-diversity and sampling biases, to compare beta-diversity and species packing across a latitudinal gradient in tree species richness of 21 large forest plots along a large environmental gradient in East Asia. We demonstrate that after accounting for topography and correcting the gamma-diversity bias, tropical forests still have higher beta-diversity than temperate analogues. This suggests that beta-diversity contributes to the latitudinal species richness gradient as a component of gamma-diversity. Moreover, both niche specialization and niche marginality (a measure of niche spacing along an environmental gradient) also increase towards the equator, after controlling for the effect of topographic heterogeneity. This supports the joint importance of tighter species packing and larger niche space in tropical forests while also demonstrating the importance of local processes in controlling beta-diversity.
Imaging the Circumstellar Environments of Young Binaries in Southern Star-Forming Regions
Creators: name: Koresko, C. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A sample of 14 pre-main sequence visual binary systems in southern star-forming regions were imaged at 2 um with the Keck I telescope to search for tertiary companions, scattered-light disks, and compact nebulae at linear scales of 5-100 AU. Speckle holography was used to produce images with diffraction-limited resolution and high dynamic range, and photometry in four filters between J (1.25 um) and L' (3.8 um) was used to provide a diagnostic of the infrared excess. Of the 14 visual binary systems studied, 9 contain components which show evidence for resolved structure. Two of them (WSB 18 and B59-1) have well-resolved tertiary companions separated from the primary stars by ~100 mas. The remainder are only marginally resolved at the diffraction limit of the telescope. Sz 116, AS 205, Elias 2-22, ESO H alpha 282, and B59-2 each have one component which is marginally-resolved along one axis and unresolved on the perpendicular axis, consistent with tertiaries at separations between ~6 and 40 mas. If all of these systems are hierarchical triples, then fully half of the nominal binaries in the sample are triple. The primaries in Elias 2-49 and WSB 71 are marginally resolved along all position angles, suggesting the presence of dust halos. No disks were unambiguously detected in the sample.
description: 14 pages, 3 figures
Quasinormal modes for massless topological black holes
Creators: name: Aros, Rodrigo
name: Martinez, Cristian
name: Troncoso, Ricardo
name: Zanelli, Jorge
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An exact expression for the quasinormal modes of scalar perturbations on a massless topological black hole in four and higher dimensions is presented. The massive scalar field is nonminimally coupled to the curvature, and the horizon geometry is assumed to have a negative constant curvature.
description: CECS style, 11 pages, no figures. References added
Experimental study on failure mechanism of top and seat with web angle connections under fire
Creators: name: Jiang, Jun
name: Jiang, Jian
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400507
subject: Fire safety engineering
classificationCode: 400510
subject: Structural engineering

description: As an important component in steel structures, beam-to-column connections may experience fracture at high temperatures, affecting progressive collapse resistance of steel structures. This paper experimentally investigates the failure mechanism of top and seat with web angle (TSWA) connections in the whole process of fire. The experimental results show that TSWA connections may fail is due to either fracture of lower angle bolt or fracture of angle plate around bolt hole. Loading during the heating-cooling stage has a great influence on the residual ultimate bearing capacity of connections after fire, and it is unsafe to ignore the influence of loading.
Physical limits to sensing material properties
Creators: name: Beroz, Farzan
name: Zhou, Di
name: Mao, Xiaoming
name: Lubensky, David K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Constitutive relations describe how materials respond to external stimuli such as forces. All materials respond heterogeneously at small scales, which limits what a localized sensor can discern about the global constitution of a material. In this paper, we quantify the limits of such constitutional sensing by determining the optimal measurement protocols for sensors embedded in disordered media. For an elastic medium, we find that the least fractional uncertainty with which a sensor can determine a material constant $λ_0$ is approximately \begin{equation*} \frac{δλ_0}{λ_0 } \sim \left( \frac{Δ_λ }{ λ_0^2} \right)^{1/2} \left( \frac{ d }{ a } \right)^{D/2} \left( \frac{ ξ}{ a } \right)^{D/2} \end{equation*} for $a \gg d \gg ξ$, $λ_0 \gg Δ_λ^{1/2}$, and $D>1$, where $a$ is the size of the sensor, $d$ is its spatial resolution, $ξ$ is the correlation length of fluctuations in the material constant, $Δ_λ$ is the local variability of the material constant, and $D$ is the dimension of the medium. Our results reveal how one can construct microscopic devices capable of sensing near these physical limits, e.g. for medical diagnostics. We show how our theoretical framework can be applied to an experimental system by estimating a bound on the precision of cellular mechanosensing in a biopolymer network.
description: 33 pages, 3 figures
title: Préface_La Clef des danses modernes pour amateurs et professionnels
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Préface
description: ID_PARA_01113
The energy distribution of an ion in a radiofrequency trap interacting with a nonuniform neutral buffer gas
Creators: name: Rouse, Ian
name: Willitsch, Stefan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology
subject: 60506 Virology

description: An ion in a radiofrequency (rf) trap sympathetically cooled by a simultaneously trapped neutral buffer gas exhibits deviations from thermal statistics caused by collision-induced coupling of the rf field to the ion motion. For a uniform density distribution of the buffer gas, the energy distribution of the ion can be described by Tsallis statistics. Moreover, runaway heating of the ion occurs if the buffer gas particles are sufficiently heavy relative to the ion. In typical experiments, however, ultracold buffer gases are confined in traps resulting in localised, non-uniform density distributions. Using a superstatistical approach, we develop an analytical model for an ion interacting with a localised buffer gas. We demonstrate theoretically that limiting collisions to the centre of the ion trap enables cooling at far greater mass ratios than achievable using a uniform buffer gas, but that an upper limit to the usable mass ratio exists even in this case. Furthermore, we analytically derive the functional form of the energy distribution for an ion interacting with a buffer gas held in a harmonic potential. The analytical distribution obtained is found to be in excellent agreement with the results of numerical simulations.