cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supersymmetry and Integrability in Planar Mechanical Systems
Creators: name: de Assis, Leonardo P. G.
name: Helayel-Neto, Jose A.
name: Paschoal, Ricardo C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present an N=2-supersymmetric mechanical system whose bosonic sector, with two degrees of freedom, stems from the reduction of an SU(2) Yang-Mills theory with the assumption of spatially homogeneous field configurations and a particular ansatz imposed on the gauge potentials in the dimensional reduction procedure. The Painleve test is adopted to discuss integrability and we focus on the role of supersymmetry and parity invariance in two space dimensions for the attainment of integrable or chaotic models. Our conclusion is that the relationships among the parameters imposed by supersymmetry seem to drastically reduce the number of possibilities for integrable interaction potentials of the mechanical system under consideration.
description: 20 pages, 3 figures
Towards more realistic dynamical models for DNA secondary structure
Creators: name: Buyukdagli, Sahin
name: Sanrey, Michaël
name: Joyeux, Marc
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We propose a dynamical model for the secondary structure of DNA, which is based on the finite stacking enthalpies used in thermodynamics calculations. In this model, the two strands can separate and the bases are allowed to rotate perpendicular to the sequence axis. We show, through molecular dynamics simulations, that the model has the correct behaviour at the denaturation transition.
description: accepted for publication in Chemical Physics Letters
Additional file 3 of Implementing a community model of early pregnancy care
Creators: name: Cox, Rebecca
name: Khalid, Somia
name: Brierly, Gemma
name: Forsyth, Annie
name: McNamara, Ruth
name: Heppell, Victoria
name: Granne, Ingrid
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Cancer
Science Policy
Hematology

description: Additional file 3. Flow diagram initial appointments.
Analyticity and Causality in Conformal Field Theory
Creators: name: Maharana, Jnanadeva
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate analyticity properties of correlation functions in conformal field theories (CFT) in the Wightman formulation. The goal is to determine domain of holomorphy of permuted Wightman functions. We focus on crossing property of three-point functions. The domain of holomorphy of a pair of three-point functions is determined by appealing to Jost's theorem and by adopting the technique of analytic completion. This program paves the way to address the issue of crossing for the four-point functions on a rigorous footing.
description: 13 pages
The Riemann hypothesis for certain integrals of Eisenstein series
Creators: name: Lagarias, Jeffrey C.
name: Suzuki, Masatoshi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: This paper studies the non-holomorphic Eisenstein series E(z,s) for the modular surface, and shows that integration with respect to certain non-negative measures gives meromorphic functions of s that have all their zeros on the critical line Re(s) = 1/2. For the constant term of the Eisenstein series it shows that all zeros are on the critical line for fixed y= Im(z) \ge 1, except possibly for two real zeros, which are present if and only if y > 4 πe^{-γ} = 7.0555+. It shows the Riemann hypothesis holds for all truncation integrals with truncation parameter T \ge 1. For T=1 this proves the Riemann hypothesis for a zeta function recently introduced by Lin Weng, attached to rank 2 semistable lattices over the rationals.
description: 23 pages; corrected residues of functions in theorem 1 and 2, added reference; v3 small corrections, removed uncited references; v4 more small corrections
Fabrication of Deep-Sub-Micrometer NbN/AlN/NbN Epitaxial Junctions on a Si Substrate
Creators: name: Qiu, Wei
name: Terai, Hirotaka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have developed a novel fabrication process for ultra-small, full-epitaxial NbN Josephson junctions on a silicon (Si) substrate. A full-epitaxial NbN/AlN/NbN tri-layer was grown on a Si (100) wafer with a (200)-oriented TiN buffer layer. It was patterned into Josephson junctions by an electron beam lithography (EBL) for junction definition followed by a reactive ion etch (RIE). A chemical mechanical polishing (CMP) process and an additional RIE by using CHF$_3$ gas formed reliable electrical contacts between the junction counter electrodes and the wiring layer. All fabricated junctions, with a junction size down to 0.27 $μ$m in diameter, showed excellent current-voltage characteristics with a clear gap structure and a small sub-gap leakage current. The dielectric layer of SiO$_2$ that served as an insulator between base and counter electrodes was removed in a wet etching process using a buffered HF solution. We have confirmed that the quality of the junctions was maintained after the removal of the SiO$_2$ dielectric layer.
description: 15 pages, 6 figures
Holographic cosmic energy, fundamental physics and the future of the universe
Creators: name: Gonzalez-Diaz, Pedro F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Holographic dark energy models have been recently suggested which most clearly show that accelerating cosmology appears to be incompatible with mathematically consistent formulations of fundamental theories such as string/M theories. In this paper it is however argued that holographic phantom models are no longer incompatible with such theories, provided that we allow for the existence of wormholes and ringholes near the big rip singularity and a quantization condition on the parameter of the equation of state is introduced. It is also seen that such a condition actually implies a quantization of the phantom energy which stabilizes the fluid against decay processes.
description: 12 pages, 2 figure, LaTex; typos and references added
Thermal SiO and H$^{13}$CO$^+$ Line Observations of the Dense Molecular Cloud G0.11$-$0.11 in the Galactic Center region
Creators: name: Handa, T.
name: Sakano, M.
name: Naito, S.
name: Hiramatsu, M.
name: Tsuboi, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained the first view in H$^{13}$CO$^+$ $J=1-0$ and a high resolution map in thermal SiO lines of G0.11$-$0.11, which is a molecular cloud situated between the Galactic Center radio arc and Sgr A. From a comparison with previous line observations, we found that the H$^{13}$CO$^+$ $J=1-0$ line is optically thin, whereas the thermal SiO lines are optically thick. The line intensity in H$^{13}$CO$^+$ $J=1-0$ shows that the cloud has a large column density, up to $N(\mathrm{H}_2)=(6-7)\times10^{23} \mathrm{cm^{-2}}$, which corresponds to about 640--740 mag in $A_{\mathrm{V}}$ or 10--12 mag in $A_{25μ\mathrm{m}}$. The estimated column density is the largest known of any even in the Galactic center region. We conclude from the intensity ratio of SiO $J=1-0$ to CS $J=1-0$ that emitting gas is highly inhomogeneous for SiO abundance on a scale smaller than the beam width $\sim$35\arcsec.
description: 11 pages, 4 figure pages, accepted for publication in ApJ
Central limit theorem for a critical multi-type branching process in random environment
Creators: name: Page, E. Le
name: Peigné, M.
name: Pham, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Let (Z n) n$\ge$0 with Z n = (Z n (i, j)) 1$\le$i,j$\le$p be a p multi-type critical branching process in random environment, and let M n be the expectation of Z n given a fixed environment. We prove theorems on convergence in distribution of sequences of branching processes Zn |Mn| /|Z n | > 0 and ln Zn $\sqrt$ n /|Z n | > 0. These theorems extend similar results for single-type critical branching process in random environment.
THE IMPACT OF A NEW GRADING SYSTEM ON THE BEEF CATTLE INDUSTRY: THE CASE OF CANADA
Creators: name: Considine, Jennifer I.
name: Kerr, William A.
name: Smith, Gregory R.
name: Ulmer, S. Monica
name: Considine, Jennifer I.
name: Kerr, William A.
name: Smith, Gregory R.
name: Ulmer, S. Monica
Publisher: name: Unknown
Year: 1986
Subjects: Livestock Production/Industries

description: Changes in the grading systems of agricultural commodities will lead to considerable adjustment costs. In 1972 Canada introduced a change in its grading system for beef. The period of adjustment for beef producers has been in excess of ten years. The observed pattern of adjustment for one of Canada's cattle-producing areas is discussed and the costs associated with the adjustment process estimated. Some measures to reduce the costs of adjustment are outlined.
Loop Bifurcation and Magnetization Rotation in Exchange Biased Ni/FeF2
Creators: name: Olamit, Justin
name: Arenholz, Elke
name: Li, Zhi-Pan
name: Petracic, Oleg
name: Roshchin, Igor V.
name: Morales, R.
name: Batlle, Xavier
name: Schuller, Ivan K.
name: Liu, Kai
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Exchange biased Ni/ FeF2 films have been investigated using vector coil vibrating sample magnetometry as a function of the cooling field strength H_FC. In films with epitaxial FeF2, a loop bifurcation develops with increasing H_FC as it divides into two sub-loops shifted oppositely from zero field by the same amount. The positively biased sub-loop grows in size with H_FC until only a single positively shifted loop is found. Throughout this process, the negative/positive (sub)loop shift has maintained the same discrete value. This is in sharp contrast to films with twinned FeF2 where the exchange field gradually changes with increasing H_FC. The transverse magnetization shows clear correlations with the longitudinal sub-loops. Interestingly, over 85% of the Ni reverses its magnetization by rotation, either in one step or through two successive rotations. These results are due to the single crystal nature of the antiferromagnetic FeF2, which breaks down into two opposite regions of large domains.
description: 16 pages, 3 figures, to appear in PRB
title: Machine learning for geophysical applications
title: Μηχανική μάθηση για γεωφυσικές εφαρμογές
titleType: AlternativeTitle
Creators: name: Αδαμοπούλου-Σουλαντίκα, Μαριάνθη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: subject: Μηχανική μάθηση
subject: Βαθιά μάθηση
subject: Σεισμοί
subject: TensorFlow
subject: Keras
subject: Γεωφυσική
subject: Μοντέλα βαθιάς μάθησης
subject: Machine learning
subject: Deep learning
subject: Earthquake
subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: In recent years, Deep Learning has drawn a lot of interest from the geophysical community. It can be used for a variety of geophysical employments, by providing simpler and easier solutions to problems. It addresses problems to do with excessive need of computational resources and time consumption from large amounts of data, as well as the curse of dimensionality. Over the years there has been great progress with Deep Learning methods. An advantage of using Deep Learning in certain applications is that it allows its users to use remote sensing, so they can collect and analyze data even from places that are difficult to be approached by humans. With the help of TensorFlow and Keras libraries, Deep Learning plays a part in the improvement of exploring surrounding environments.
Surface radiation of a charged particle bunch passing through a corrugated surface with a relatively small period
Creators: name: Simakov, Evgeniy S.
name: Tyukhtin, Andrey V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We investigate radiation of a charged particle bunch moving through a corrugated planar conductive surface. It is assumed that the corrugation period and depth are much less than the wavelengths under consideration. In this case, the corrugated structure can be replaced with some smooth surface on which the so-called equivalent boundary conditions (EBC) are fulfilled. Using the EBC method we obtain expressions for the electromagnetic field of the bunch which are presented in form of spectral integrals. It is demonstrated that the bunch generates surface waves propagating along the corrugations with the light velocity. Also we present results of numerical calculations for electromagnetic field components of surface waves depending on coordinates and show that these dependences can be used for determination of the bunch size.
HEDONIC PRICE ESTIMATION FOR COMMODITIES: AN APPLICATION TO COTTON
Creators: name: Ethridge, Don E.
name: Davis, Bob
name: Ethridge, Don E.
name: Davis, Bob
Publisher: name: Unknown
Year: 1982
Subjects: Crop Production/Industries
Demand and Price Analysis

description: A model of hedonic prices - implicit prices of embodied quality attributes - was developed for cotton lint and the relative importance of various quality attributes were estimated with regression analysis from sample data on observed sales of cotton. Results indicated that producer prices were sensitive to variations in fiber length, micronaire, and trash content. Results also revealed differences in relative importance and sensitivity between years.
Pupil Mapping in 2-D for High-Contrast Imaging
Creators: name: Vanderbei, R. J.
name: Traub, W. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Pupil-mapping is a technique whereby a uniformly-illuminated input pupil, such as from starlight, can be mapped into a non-uniformly illuminated exit pupil, such that the image formed from this pupil will have suppressed sidelobes, many orders of magnitude weaker than classical Airy ring intensities. Pupil mapping is therefore a candidate technique for coronagraphic imaging of extrasolar planets around nearby stars. The pupil mapping technique is lossless, and preserves the full angular resolution of the collecting telescope, so it could possibly give the highest signal-to-noise ratio of any proposed single-telescope system for detecting extrasolar planets. A planet fainter than $10^{-10}$ times its parent star, and as close as about $2 λ/D$ should be detectable. We derive the 2-dimensional equations of pupil mapping for both 2-mirror and 2-lens systems. We give examples for both cases. We derive analytical estimates of aberration in a 2-mirror system, and show that the aberrations are essentially corrected with an added reversed set of mirrors.
description: 35 pages, 10 figures, 1 table. To download version with higher resolution figures, visit http://www.orfe.princeton.edu/~rvdb/tex/piaa2/ms.dvi.pdf
Additional file 1 of Implementing a community model of early pregnancy care
Creators: name: Cox, Rebecca
name: Khalid, Somia
name: Brierly, Gemma
name: Forsyth, Annie
name: McNamara, Ruth
name: Heppell, Victoria
name: Granne, Ingrid
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Cancer
Science Policy
Hematology

description: Additional file 1. Emergency Clinic Questionnaire.
Synchronized Fractionation and Phase Separation in Binary Colloids
Creators: name: Yao, Lian Dan
name: Chen, Hong Yu
name: Shi, Yan
name: Liang, Ying
name: Zhang, Tian Hui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Fractionation is necessary for self-assembly in multicomponent mixtures. Here, reversible fractionation and crystallization are realized and studied in a two-dimensional binary colloids which is supersaturated by enhancing the attraction between colloidal particles. As a deep and fast supersaturation results in gels with a uniform distribution of binary particles, a gradual quasistatic supersaturating process leads to a two-step crystallization in which small particles and large particles are fractionated as coexisting crystal and liquid phases respectively. Fractionation occurs as well in the quasistatic melting of gel. We show that the synchronized fractionation and phase separation arises from the competition between the size-dependent repulsion and the tunable attraction. The results in this study demonstrate a robust mechanism of fractionation via phase separation, and have important implication in understanding the reversible formation of membraneless organelles in living cells.
description: 14 pages
Resource Control for Synchronous Cooperative Threads
Creators: name: Amadio, Roberto
name: Zilio, Silvano Dal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We develop new methods to statically bound the resources needed for the execution of systems of concurrent, interactive threads. Our study is concerned with a \emph{synchronous} model of interaction based on cooperative threads whose execution proceeds in synchronous rounds called instants. Our contribution is a system of compositional static analyses to guarantee that each instant terminates and to bound the size of the values computed by the system as a function of the size of its parameters at the beginning of the instant. Our method generalises an approach designed for first-order functional languages that relies on a combination of standard termination techniques for term rewriting systems and an analysis of the size of the computed values based on the notion of quasi-interpretation. We show that these two methods can be combined to obtain an explicit polynomial bound on the resources needed for the execution of the system during an instant. As a second contribution, we introduce a virtual machine and a related bytecode thus producing a precise description of the resources needed for the execution of a system. In this context, we present a suitable control flow analysis that allows to formulte the static analyses for resource control at byte code level.
title: Διερεύνηση της δυνατότητας επέκτασης των εφαρμογών φυσικού αερίου στην αεροπορία - Προβλήματα ασφάλειας από τη χρήση
title: Feasibility study for using natural gas in aviation - safety considerations
titleType: AlternativeTitle
Creators: name: Τενεκούδης, Διονύσης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2019
Subjects: subject: Φυσικό αέριο
subject: Αεροπορία

description: H παρούσα διατριβή έχει ως αντικείμενο τη μελέτη της δυνατότητας υποκατάστασης των συμβατικών αεροπορικών καυσίμων από το φυσικό αέριο (LNG ή CNG) στους άξονες της ασφάλειας της τροφοδοσίας, της οικονομικότητας της επένδυσης και της περιβαλλοντικής βιωσιμότητας που ενέχει η χρήση του καυσίμου.
Swift and optical observations of GRB 050401
Creators: name: De Pasquale, Massimiliano
name: Beardmore, Andy P.
name: Barthelmy, S. D.
name: Boyd, P.
name: Burrows, D. N.
name: Fink, R.
name: Geherls, N.
name: Kobayashi, S.
name: Mason, K. O.
name: McNought, R.
name: Nousek, J. A.
name: Page, K. L.
name: Palmer, D. M.
name: Peterson, B. A.
name: Price, P. A.
name: Rich, J.
name: Roming, P.
name: Rosen, S. R.
name: Sakamoto, T.
name: Schimdt, B. P.
name: Tueller, J.
name: Wells, A. A.
name: Zane, S.
name: Zhang, B.
name: Ziaeepour, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the analysis of gamma-ray and X-ray data of GRB 050401 taken with the Swift satellite, together with a series of ground-based follow-up observations. The Swift X-ray light curve shows a clear break at about 4900 seconds after the GRB. The decay indices before and after the break are consistent with a scenario of continuous injection of radiation from the 'central engine' of the GRB to the fireball. Alternatively, this behaviour could result if ejecta are released with a range of Lorentz factors with the slower shells catching up the faster at the afterglow shock position. The two scenarios are observationally indistinguishable. The GRB 050401 afterglow is quite bright in the X-ray band but weak in the optical, with an optical to X-ray flux ratio similar to those of 'dark bursts'. We detect a significant amount of absorption in the X-ray spectrum, with N_H = (1.7 +/- 0.2) x 10^22 cm^-2 at a redshift of z=2.9, which is typical of a dense circumbust medium. Such high column density implies an unrealistic optical extinction of 30 magnitudes if we adopt the Galactic extinction law, which would not consistent with optical detection of the afterglow. This suggests that the extinction law is different from the Galactic one.
description: 13 pages, 5 figures. MNRAS accepted
KAPS Survey # 1960-7002: Peruvian Family Life Study--Viru
Creators: name: Knowledge, Attitudes And Practices Surveys (KAPS)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Pregnant now; desired and expected education for oldest child; religiosity, length of residence in present locale; intention to own various listed consumer durables; appropriate age to marry; attitude toward cohabitation before marriage; advisable age to have first child; attitude toward women with few children; relationship between urban or rural residence, wealth, race and family size; estimated frequency of infant mortality changes in same; number of additional children desired and expected; ideal number of children; number of children desired for daughter; number of children desired before having first child; ever discussed family size with partner; assessment of number of additional children desired by husband; effect of additional children on health and finances; ways to encourage pregnancy; estimated of weekly and monthly family living expenses; living arrangement with husband.
Explicit treatment of tensor force with a method of Antisymmetrized Molecular Dynamics
Creators: name: Dote, Akinobu
name: Kanada-En'yo, Yoshiko
name: Horiuchi, Hisashi
name: Akaishi, Yoshinori
name: Ikeda, Kiyomi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In order to treat tensor force explicitly, we propose a microscopic model for nuclear structure based on antisymmetrized molecular dynamics (AMD). As a result of the present study, it is found that some extentions of the AMD method are effective to incorporate the tensor correlation into wave functions. Calculating the deuteron, triton and $^4$He with the extended version of AMD, we obtained solutions that have large contribution of the tensor force. By analyzing the wave funtion of $^4$He, it is found that its single-particle orbits are composed of normal-size $0s$ orbits and shrunk $p$ orbits so as to gain the tensor force.
description: 20 pages, 4 figures
Wentzlass-Eggebert, Friedrich-Wilhelm: Kreuzzungsdichtung des Mittelalters
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Reactive concurrent programming revisited
Creators: name: Amadio, Roberto
name: Boudol, Gerard
name: Castellani, Ilaria
name: Boussinot, Frederic
Publisher: name: arXiv
Year: 2005
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: In this note we revisit the so-called reactive programming style, which evolves from the synchronous programming model of the Esterel language by weakening the assumption that the absence of an event can be detected instantaneously. We review some research directions that have been explored since the emergence of the reactive model ten years ago. We shall also outline some questions that remain to be investigated.
Cultivating science : subtitle the farm-laboratory in practice
Creators: name: Steele, Joseph A.
Publisher: name: University of British Columbia
Year: 2009

description: This study examines spaces of the English farm in practice, as presented by organic farmers and veterinary surgeons in Dorset and other prominent agricultural spokespersons in England. These interviewees reveal different farming experiences and practices of science, which constitute different configurations of farm space and different networks of farming activity. British agriculture has been changing as targets for food production volumes have been reduced and replaced by regulations, that demand, in particular, a more environmentally astute and sustainable set of farming practices. Organic farming is emblematic of these new initiatives. British agriculture has also been disrupted by disease over the last 15 years, most recently foot and mouth disease, which has influenced farming practices. I have studied 18 organic farms in Dorset in the southwest of England between 1999 and 2001 in order to view endogenous changes as they relate to the contexts outside of the farm premises. By arranging interviews on the farm premises, I have also been able to witness and systematically analyse sciences of food production in action. The analogy of a working 'laboratory' is used to illuminate this science as it is practiced and delivered. In particular, this idea draws on the work of Bruno Latour in science studies. He has showed that the laboratory as a place of science is so important because of the way scale is reversed, and so the distinction of what lies outside and inside the laboratory is blurred by the movements of elements constantly between. I set these ideas in conversation with Michel Foucault's ideas of the 'normalisation' of the individual through processes of surveillance and the workings of 'disciplinary power'. Foucault's ideas help us understand the way the farmer is often made to work in a particular manner. I show that sciences cannot be viewed in isolation from each other and their context, but that they are interlinked and controlled from different places. By combining this critical theoretical conversation with an appreciation of how agriculture is restructuring, I reveal the space of 'the farm' in practice as a product of the interaction of different sciences. I also reveal the merits of engaging with Latour and Foucault in tandem.
Usability of presepsin, Calprotectin and interleukin 6 in the diagnosis of acute appendicitis
Creators: name: Ozdal, Emine
name: Tortum, Fatma
name: Laloglu, Esra
name: Egilmez, Esra
name: Kasali, Kamber
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology

description: This study aimed to evaluate presepsin, calprotectin, and interleukin-6 levels together in terms of their utility in the diagnosis of acute appendicitis and distinguishing complicated acute appendicitis cases. In addition, it was attempted to identify a biomarker that would be most useful in diagnosing acute appendicitis. This study was conducted prospectively at the emergency department of a tertiary hospital. Patients diagnosed with AA from July 3, 2023, through January 1, 2024, were evaluated. 45 patients with acute appendicitis and 45 healthy volunteers were included in the study. Presepsin, calprotectin, and interleukin-6 levels were measured in both groups and subjected to statistical analyses. To ensure equality between the two groups participating in the study, 17 female and 28 male patients were included in each group. The presepsin, calprotectin, and interleukin-6 levels of the patients with appendicitis were significantly higher than those of the healthy group (p < 0.001 for all). However, presepsin, calprotectin, and interleukin-6 were not significant parameters in differentiating between complicated and uncomplicated appendicitis (p = 0.493, p = 0.202, and p = 0.448, respectively). Presepsin, calprotectin, and interleukin-6 levels may be useful in diagnosing acute appendicitis but would be insufficient in identifying complicated cases.
The Velocity Dispersion Function for Quiescent Galaxies in Nine Strong-Lensing Clusters
Creators: name: Sohn, Jubee
name: Fabricant, Daniel G.
name: Geller, Margaret J.
name: Hwang, Ho Seong
name: Diaferio, Antonaldo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the central stellar velocity dispersion function for quiescent galaxies in a set of nine northern clusters in the redshift range $0.18 < z < 0.29$ and with strong lensing arcs in Hubble Space Telescope images. The velocity dispersion function links galaxies directly to their dark matter halos. From dense SDSS and MMT/Hectospec spectroscopy we identify $231 - 479$ spectroscopic members in each cluster. We derive physical properties of cluster members including redshift, $D_{n}4000$, and central stellar velocity dispersion and we include a table of these measurements for 3419 cluster members. We construct the velocity dispersion functions for quiescent galaxies with $D_{n}4000 > 1.5$ and within $R_{200}$. The cluster velocity dispersion functions all show excesses at $σ\gtrsim 250 km s^{-1}$ compared to the field velocity dispersion function. The velocity dispersion function slope at large velocity dispersion ($σ> 160 km s^{-1}$) is steeper for more massive clusters, consistent with the trend observed for cluster luminosity functions. The spatial distribution of galaxies with large velocity dispersion at radii larger than $R_{200}$ further underscores the probable major role of dry mergers in the growth of massive cluster galaxies during cluster assembly.
description: 16 pages, 12 figures, Accepted for publication in the ApJ
Inglisian, Vahan: Hundertfünfzig Jahre Mechitaristen in Wien (1811 bis 1961)
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Additional file 1 of Nocebo effects and participant information leaflets: evaluating information provided on adverse effects in UK clinical trials
Creators: name: Kirby, Nigel
name: Shepherd, Victoria
name: Howick, Jeremey
name: Betteridge, Sophie
name: Kerenza Hood
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
Energy inequalities for a model of wave propagation in cold plasma
Creators: name: Otway, Thomas H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35M10; 35D05; 82D10

description: Energy inequalities are derived for an elliptic-hyperbolic operator arising in plasma physics. These inequalities imply the existence of distribution and weak solutions to various closed boundary-value problems. An existence theorem is proven for a related class of Keldysh equations, and the failure of expected methods for obtaining uniqueness is discussed. The proofs use ideas recently introduced by Lupo, Morawetz, and Payne for a generalized Tricomi operator. The existence of strong solutions under open boundary conditions is also proven.
description: 33 pages
LASER LEVELING AND FEDERAL INCENTIVES
Creators: name: Daubert, John
name: Ayer, Harry W.
name: Daubert, John
name: Ayer, Harry W.
Publisher: name: Unknown
Year: 1982
Subjects: Environmental Economics and Policy

description: Our empirical analysis shows that federal tax and cost-sharing incentives significantly affect the profitability of laser leveling - a new irrigation technology which sharply reduces gravity water applications. However, the structure of the incentives may make slow rather than rapid adoption of the technology most profitable. Methodology plus results for a wide range of physical and economic conditions are given.
Factorization of the Two Loop Four-Particle Amplitude in Superstring Theory Revisited
Creators: name: Xiao, Zhi-Guang
name: Zhu, Chuan-Jie
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study in detail the factorization of the newly obtained two-loop four-particle amplitude in superstring theory. In particular some missing factors from the scalar correlators are obtained correctly, in comparing with a previous study of the factorization in two-loop superstring theory. Some details for the calculation of the factorization of the kinematic factor are also presented.
description: 11 pages, 1 figure; v2, minor corrections and references updated
Quantum field theoretical description of the Casimir effect between two real graphene sheets and thermodynamics
Creators: name: Klimchitskaya, G. L.
name: Mostepanenko, V. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The analytic asymptotic expressions for the Casimir free energy and entropy for two parallel graphene sheets possessing nonzero energy gap $Δ$ and chemical potential $μ$ are derived at arbitrarily low temperature. Graphene is described in the framework of thermal quantum field theory in the Matsubara formulation by means of the polarization tensor in (2+1)-dimensional space-time. Different asymptotic expressions are found under the conditions $Δ>2μ$, $Δ=2μ$, and $Δ<2μ$ taking into account both the implicit temperature dependence due to a summation over the Matsubara frequencies and the explicit one caused by a dependence of the polarization tensor on temperature as a parameter. It is shown that for both $Δ>2μ$ and $Δ<2μ$ the Casimir entropy satisfies the third law of thermodynamics (the Nernst heat theorem), whereas for $Δ=2μ$ this fundamental requirement is violated. The physical meaning of the discovered anomaly is considered in the context of thermodynamic properties of the Casimir effect between metallic and dielectric bodies.
description: 37 pages; several typos are corrected
Creek temperatures in shaded reaches downstream of forestry activities, Central British Columbia
Creators: name: Story, Anthony Charles
Publisher: name: University of British Columbia
Year: 2009

description: Removal of streamside vegetation often causes daytime increases in stream temperature, due to greater warming by solar radiation. Several studies have reported creeks subsequently cooling as they flow back into shade, but none have established the causal processes. Fisheries and Oceans Canada observed downstream cooling during several summers in two small streams (catchments of 0.5 - 1.5 km²) that were monitored as part of a multi-year study in the central interior of British Columbia. The purpose of this thesis was to use an energy balance framework to evaluate the physical processes responsible for the observed temperature patterns. Field investigations in July-August, 2000, showed that both streams continued to gain energy from the overlying atmosphere/vegetation on most afternoons as they flowed through the ~200 m forested reaches. This effect only consistently resulted in measurable downstream warming in the upper section of the first reach, where groundwater did not contact the channel. Net inflow of groundwater in the lower section of the reach (~0.02 L s⁻¹ m"1) sometimes caused rapid downstream cooling, depending on the magnitude of streamflow input at the head of the reach. The greatest downstream cooling (up to 4 °C) occurred when the streamflow input was <5 L s⁻¹, because infiltration in the upper 150 m of the reach consumed the warmer streamwater from the upstream catchment. Modest inputs of groundwater (~0.002 L s⁻¹ m⁻¹) occurred throughout the second study reach, causing an estimated 0.5 °C cooling in the average daily creek temperature. Two-way exchanges of energy between the creek and its subsurface, driven by conduction, and possibly hyporheic exchange, were important influences on the daily temperature extremes. Heat appeared to be stored within the riparian zone during daytime and released to the stream at nighttime. Heat storage also affected the mean daily temperatures, apparently depending on the relative strengths of the daytime heat sink and nighttime heat source effects. This study adds to a growing recognition of the high spatial variability in environmental responses to forest management, even within small watersheds. A better understanding of the hydrology-temperature linkage is required for effective management of the thermal effects of forestry.
A compact flare eclipsed in the corona of SV Cam
Creators: name: Sanz-Forcada, J.
name: Favata, F.
name: Micela, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The eclipsing active binary SV Cam (G0V/K6V, P_0.593071 d) was observed with XMM-Newton during two campaigns in 2001 and 2003. No eclipses in the quiescent emission are clearly identified, but a flare was eclipsed during the 2001 campaign, allowing us to strongly constrain, from purely geometrical considerations, the position and size of the event: the flare is compact and it is formed at a latitude below 65 deg. The size, temperature and Emission Measure of the flare imply an electron density of log n_e (cm^-3)~10.6-13.3 and a magnetic field of ~65-1400 G in order to confine the plasma, consistent with the measurements that are obtained from density-sensitive line ratios in other similar active stars. Average emission seems to come from either extended or polar regions because of lack of eclipses. The Emission Measure Distribution, coronal abundances and characteristics of variability are very similar to other active stars such as AB Dor (K1V).
description: 12 pages, 10 figures, 4 tables. Accepted by A&A. Online material included. Figures 6, 9 and 10 have lower resolution than the original
Point Proposal Network for Reconstructing 3D Particle Endpoints with Sub-Pixel Precision in Liquid Argon Time Projection Chambers
Creators: name: Dominé, Laura
name: de Soux, Pierre Côte
name: Drielsma, François
name: Koh, Dae Heun
name: Itay, Ran
name: Lin, Qing
name: Terao, Kazuhiro
name: Tsang, Ka Vang
name: Usher, Tracy L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Liquid Argon Time Projection Chambers (LArTPC) are particle imaging detectors recording 2D or 3D images of trajectories of charged particles. Identifying points of interest in these images, namely the initial and terminal points of track-like particle trajectories such as muons and protons, and the initial points of electromagnetic shower-like particle trajectories such as electrons and gamma rays, is a crucial step of identifying and analyzing these particles and impacts the inference of physics signals such as neutrino interaction. The Point Proposal Network is designed to discover these specific points of interest. The algorithm predicts with a sub-voxel precision their spatial location, and also determines the category of the identified points of interest. Using as a benchmark the PILArNet public LArTPC data sample in which the voxel resolution is 3mm/voxel, our algorithm successfully predicted 96.8% and 97.8% of 3D points within a distance of 3 and 10~voxels from the provided true point locations respectively. For the predicted 3D points within 3 voxels of the closest true point locations, the median distance is found to be 0.25 voxels, achieving the sub-voxel level precision. In addition, we report our analysis of the mistakes where our algorithm prediction differs from the provided true point positions by more than 10~voxels. Among 50 mistakes visually scanned, 25 were due to the definition of true position location, 15 were legitimate mistakes where a physicist cannot visually disagree with the algorithm's prediction, and 10 were genuine mistakes that we wish to improve in the future. Further, using these predicted points, we demonstrate a simple algorithm to cluster 3D voxels into individual track-like particle trajectories with a clustering efficiency, purity, and Adjusted Rand Index of 96%, 93%, and 91% respectively.
Additional file 1 of Prevalence of accelerometer-measured physical activity in adolescents in Fit Futures – part of the Tromsø Study
Creators: name: Beldo, Sigurd K.
name: Morseth, Bente
name: Christoffersen, Tore
name: Halvorsen, Peder A.
name: Bjørge H. Hansen
name: Anne-Sofie Furberg
name: Ekelund, Ulf
name: Horsch, Alexander
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Overview of questions from questionnaire used in this study. Contains the questions and the response alternatives to each question, translated from Norwegian to English.
Halictus bucharicus Bluthgen 1936
Creators: name: Astafurova, Yulia V.
name: Proshchalykin, Maxim Yu.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Halictus
Halictus bucharicus

description: 3. Halictus bucharicus Blüthgen, 1936
(Figs 3 a–e)
 Halictus bucharicus Blüthgen, 1936: 307, ♀, ♂.
 Type locality: Bokhtar (Tajikistan).
 Published (original) locality: Kurgan-Tyube and Kyzyl-Kala (Tajikistan).
 Lectotype: ♀, designated by Pesenko 1984a: 19, ТадЖикистан, Курган-ТЮбе [Tajikistan, Kurgan-Tyube (= Bokhtar), 68°46′E 37°50′N], 7. V.[1]931, Н. Фурсов [N. Fursov leg.] // к. Шестакова [Collection of Shestakov] // bucharicus n. sp., ♀, Blüthgen det. 1936 // Lectotypus H. bucharicus Bl., [1]981  // Zoological Institute St. Petersburg INS_HYM_0000158.
 Paralectotypus: ♂, the same labels as in lectotype.
 Current status. Halictus (Protohalictus) bucharicus Blüthgen, 1936.
 Distribution. A rare Central Asian species known from seven specimens: southeastern Kazakhstan and Tajikistan (Pesenko 2005a).
description: Published as part of Astafurova, Yulia V. & Proshchalykin, Maxim Yu., 2020, The type specimens of bees (Hymenoptera, Apoidea) deposited in the Zoological Institute of the Russian Academy of Sciences, St. Petersburg. Contribution III Family Halictidae, genera Halictus Latreille, 1804, and Sphecodes Latreille, 1804, pp. 401-446 in Zootaxa 4790 (3) on pages 405-406, DOI: 10.11646/zootaxa.4790.3.1, http://zenodo.org/record/3891137
System Parameters of the Transiting Extrasolar Planet HD 209458b
Creators: name: Wittenmyer, Robert A.
name: Welsh, William F.
name: Orosz, Jerome A.
name: Schultz, A. B.
name: Kinzel, W.
name: Kochte, M.
name: Bruhweiler, F.
name: Bennum, D.
name: Henry, Gregory W.
name: Marcy, G. W.
name: Fischer, D. A.
name: Butler, R. P.
name: Vogt, S. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive improved system parameters for the HD 209458 system using a model that simultaneously fits both photometric transit and radial velocity observations. The photometry consists of previous Hubble Space Telescope STIS and FGS observations, twelve I-band transits observed between 2001-2003 with the Mt. Laguna Observatory 1m telescope, and six Stromgren b+y transits observed between 2001-2004 with two of the Automatic Photometric Telescopes at Fairborn Observatory. The radial velocities were derived from Keck/HIRES observations. The model properly treats the orbital dynamics of the system, and thus yields robust and physically self-consistent solutions. Our set of system parameters agrees with previously published results though with improved accuracy. For example, applying robust limits on the stellar mass of 0.93-1.20Msun, we find 1.26 < Rplanet < 1.42 Rjup and 0.59 < Mplanet < 0.70 Mjup. We can reduce the uncertainty on these estimates by including a stellar mass-radius relation constraint, yielding Rplanet = 1.35 +/- 0.07 Rjup and Mplanet = 0.66 +/- 0.04 Mjup. Our results verify that the planetary radius is 10-20% larger than predicted by planet evolution models, confirming the need for an additional mechanism to slow the evolutionary contraction of the planet. A revised ephemeris is derived, T0=2452854.82545 + 3.52474554E (HJD), which now contains an uncertainty in the period of 0.016s and should facilitate future searches for planetary satellites and other bodies in the HD 209458 system.
description: 30 pages, 5 figures. To appear in ApJ, 2005 Oct 20
Robust dynamics of antiferromagnetic skyrmion driven by spin-polarized current in small thin disks
Creators: name: Silva, R. L.
name: Silva, R. C.
name: Moura-Melo, W. A.
name: Pereira, A. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate skyrmion configuration and dynamics in antiferromagnetic thin disks. It is shown that the skyrmion acquires oscillatory dynamics with well-defined amplitude and frequency which may be controlled on demand by the spin-polarized current. Such dynamics are robust in the sense that an interface between two half-disks cannot change the dynamics appreciably. Indeed, the skyrmion keeps its oscillatory despite crossing this interface. The way skyrmion found to do that is by modifying its core region shape so that its total energy is unaltered for several cycles.
description: 5 pages, 12 figures
The One-Body and Two-Body Density Matrices of Finite Nuclei and Center-of-Mass Correlations
Creators: name: Shebeko, A.
name: Papakonstantinou, P.
name: Mavrommatis, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A method is presented for the calculation of the one-body and two-body density matrices and their Fourier transforms in momentum space, that is consistent with the requirement for translational invariance, in the case of a nucleus (a finite self-bound system). We restore translational invariance by using the so-called fixed center-of-mass approximation for constructing an intrinsic nuclear ground state wavefunction by starting from a non-translationally invariant wavefunction and applying a projection prescription. We discuss results for the one-body and two-body momentum distributions of the 4He nucleus calculated with the Slater determinant of the harmonic oscillator orbitals, as the initial non-translationally invariant wavefunction. Effects of such an inclusion of CM correlations are found to be quite important in the momentum distributions.
description: 5 pages, incl. 2 figures; Proc. Int. Conf. on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR), Kos, Greece, Sept.2005