cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stress and dietary restraint : an investigation into the relationship between restrained eating and cortisol
Creators: name: Putterman, Erin
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to elucidate the nature of the relationship between dietary restraint and physiological stress, by investigating which eating and body-related constructs are related to Cortisol excretion and to perceived stress. Female undergraduates (N=170) completed self-report measures on dietary restraint, appearance beliefs, body satisfaction variables, perceived stress, and eating self-efficacy. Participants also provided two saliva samples. The first sample was collected in the participants' home, a half-hour after wakening, and the second was collected 6-8 hours later. A factor analysis was performed in order to reduce redundancy in the set of measures surrounding eating and body attitudes, which yielded three factors. The findings indicated that women with stronger beliefs about the importance of their appearance, as well as negative emotions and cognitions surrounding their body image, had higher levels of Cortisol in the afternoon. These appearance and body-related constructs were also associated with higher levels of perceived stress. However, perceived stress was not associated with Cortisol excretion. There were no significant relationships between any of the eating or psychological variables and morning Cortisol levels. These results .suggest that dysfunctional cognitions surrounding appearance and body image may contribute to the relationship between dietary restraint and elevations in Cortisol excretion. Implications for interventions and women's health are discussed.
Investigation of particle production in $h{\text -}A$ collisions using statistical distributions
Creators: name: Kaur, A.
name: Kaur, M.
name: Aggarwal, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Study of the characteristic properties of charged particle production in hadron-nucleus collisions at high energies, by utilising the approaches from different statistical models is performed.~Predictions from different approaches using the Negative Binomial distribution, shifted Gompertz distribution, Weibull distribution and the Krasznovszky-Wagner distribution are utilised for a comparative study of the relative successes of these models.~These distributions derived from a variety of functional forms are based on either phenomenological parameterizations or some model of the underlying dynamics.~Some of these have have also been used to study the data at the LHC for both proton-proton and nucleus-nucleus collisions.~Various physical and derived observables have been used for the analysis.
description: 21 pages, 10 figures 9 Tables
The DEEP2 Galaxy Redshift Survey: Probing the Evolution of Dark Matter Halos around Isolated Galaxies at z ~ 1
Creators: name: Conroy, Charlie
name: Newman, Jeffrey A.
name: Davis, Marc
name: Coil, Alison L.
name: Yan, Renbin
name: Cooper, Michael C.
name: Gerke, Brian F.
name: Faber, S. M.
name: Koo, David C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the first 25% of DEEP2 Redshift Survey data, we probe the line-of-sight velocity dispersion profile for isolated galaxies with absolute B-band magnitude -22
description: 8 pages, 5 figures, ApJ accepted
Orthoptera
Creators: name: Sevgili, Hasan
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera

description: Orthoptera: Phaneropterinae: Barbitistini   Isophya Brunner von Wattenwyl, 1878
description: Published as part of Sevgili, Hasan, 2020, Isophya sonora, a new bush-cricket species from Eastern Black Sea region of Turkey (Orthoptera: Tettigoniidae; Phaneropterinae), pp. 284-292 in Zootaxa 4860 (2) on page 286, DOI: 10.11646/zootaxa.4860.2.9, http://zenodo.org/record/4413837
Zitterbewegung and Klein-tunneling phenomena for transient quantum waves
Creators: name: Nieto-Guadarrama, Fernando
name: Villavicencio, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the dynamics of relativistic quantum waves in a potential step by using an exact solution to the Klein-Gordon equation with a point source initial condition. We show that in both the propagation, and Klein-tunneling regimes, the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We demonstrate that the beating phenomenon is characterized by the Zitterbewegung frequency, and that the amplitude of these oscillations decays as $t^{-3/2}$. We show that beating effect also manifests itself in the free Klein-Gordon and Dirac equations within a quantum shutter setup, which involve the dynamics of cut-off quantum states. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront, exhibiting an oscillating pattern similar to the diffraction in time phenomenon observed in non-relativistic systems. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime. We show that, depending on the energy difference, ${\cal E}$, between the source and the potential step, the time-delay can be positive, negative or zero. The latter case corresponds to a super-Klein-tunneling configuration, where ${\cal E}$ equals to half the energy of the potential step.
description: Accepted in Phys. Rev. A; 11 pages, 6 figures
title: A necessary evolution: structure, problems and change, concepts for the credit rating industry
Creators: name: Kiennast, Alexander
Publisher: name: TU Wien
Year: 2015
Subjects: subject: credit rating
subject: european policies
subject: financial marketes

description: This thesis explores the role of credit rating agencies (CRAs) on the financial market. The history, structure and business model of the rating industry will be examined, based on an extensive study of relevant literature, also including working papers and legislation by public authorities. Based on this overviews, it will be examined in how far external credit ratings of bad quality can have a destabilising influence on the markets and what might be the reasons for biased ratings. As a consequence it will be shown, that conflicts of interest, together with related dynamics, do indeed factor into the ratings released by CRAs, which in turn deteriorates market stability. Building on this, various possible ways to address these concerns will be presented and evaluated. The ideas of a changed remuneration system for rating agencies, of an European intermediary rating platform and of supplementing external ratings in legislatory frameworks with market measures will be specifically discussed. These topics will then form the basis of an agent-based model in NetLogo. This model will be used to simulate the dynamics that credit ratings induce in the financial market as well as the potential impact of the reform concepts described in the preceding chapter. The evaluation of this simulation model and its results in context of the theoretical part of the paper will then form the conclusion of the thesis.
Discretized quantum adiabatic process for free fermions and comparison with the imaginary-time evolution
Creators: name: Shirakawa, Tomonori
name: Seki, Kazuhiro
name: Yunoki, Seiji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by recent progress of quantum technologies, we study a discretized quantum adiabatic process for a one-dimensional free fermion system described by a variational wave function, i.e., a parametrized quantum circuit. The wave function is composed of $M$ layers of two elementary sets of time-evolution operators, each set being decomposed into commutable local operators. The evolution time of each time-evolution operator is treated as a variational parameter so as to minimize the expectation value of the energy. We show that the exact ground state is reached by applying the layers of time-evolution operators as many as a quarter of the system size. This is the minimum number $M_B$ of layers set by the limit of speed, i.e., the Lieb-Robinson bound, for propagating quantum entanglement via the local time-evolution operators. Quantities such as the energy $E$ and the entanglement entropy $S$ of the optimized variational wave function with $M < M_B$ are independent of the system size $L$ but fall into some universal functions of $M$. The development of the entanglement in these ansatz is further manifested in the progressive propagation of single-particle orbitals in the variational wave function. We also find that the optimized variational parameters show a systematic structure that provides the optimum scheduling function in the quantum adiabatic process. We also investigate the imaginary-time evolution of this variational wave function, where the causality relation is absent due to the non-unitarity of the imaginary-time evolution operators, thus the norm of the wave function being no longer conserved. We find that the convergence to the exact ground state is exponentially fast, despite that the system is at the critical point, suggesting that implementation of the non-unitary imaginary-time evolution in a quantum circuit is highly promising to further shallow the circuit depth.
description: 35 pages, 22 figures
Chest wall Desmoid tumor…A multidisciplinary care
Creators: name: Souissi, Feriel
name: Cherif, Taieb
name: Mahdhi, Nidhal
name: Mgarrech, Imene
name: Kortas, Mohamed Chokri
name: Jerbi, Sofiène
Publisher: name: Biomedicine & Healthcare Research
Year: 2024

description: Desmoid tumors, though rare, can present challenges, especially when occurring in the chest. This case involves a 44-year-old woman with a parietal swelling, initially painless but progressively growing. “Café au lait” spots were noted, along with a left paraspinal mass. Imaging revealed an infiltrating parasternal mass extending to adjacent structures. An ultrasound-guided biopsy confirmed the diagnosis of desmoid type fibromatosis. After initial monitoring, surgery became indicated due to tumor growth. The patient had a total en bloc resection of the tumor process taking out the anterior arches of the 3rd to the 5th left rib with their intercostal spaces, the lower and left part of the sternal body as well as the xiphoid appendage. A polypropylene plate was used to construct the parietal defect. In order to cover the loss of soft tissue, a myoplasty with a pure and pedicle left pectoralis major muscle flap was performed. The final anatomo-pathological examination of the specimen concluded to a complete resection of the tumor with healthy margins. The patient’s postoperative course was uncomplicated with no local recurrence after 12 months. Despite the benignity of desmoid tumors, they do represent a real local danger considering their aggressiveness. The tumor resection must be complete with adequate margins in order to decrease the risk of local recurrence.
description: Biomedicine & Healthcare Research, Vol. 2 No. 1 (2024)
Building MSSM Flux Vacua
Creators: name: Marchesano, Fernando
name: Shiu, Gary
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct N=1 and N=0 chiral four-dimensional vacua of flux compactification in Type IIB string theory. These vacua have the common features that they are free of tadpole instabilities (both NSNS and RR) even for models with N=0 supersymmetry. In addition, the dilaton/complex structure moduli are stabilised and the supergravity background metric is warped. We present an example in which the low energy spectrum contains the MSSM spectrum with three generations of chiral matter. In the N=0 models, the background fluxes which stabilise the moduli also induce soft supersymmetry breaking terms in the gauge and chiral sectors of the theory, while satisfying the equation of motion. We also discuss some phenomenological features of these three generation MSSM flux vacua. Our techniques apply to other closed string backgrounds as well and, in fact, also allow to find new N=1 D-brane models which were believed not to exist. Finally, we discuss in detail the consistency conditions of these flux compactifications. Cancellation of K-theory charges puts additional constraints on the consistency of the models, which render some chiral D-brane models in the literature inconsistent.
description: 33 pages, 1 figure. Minor corrections
Interface properties of the NiMnSb/InP and NiMnSb/GaAs contacts
Creators: name: Galanakis, I.
name: Lezaic, M.
name: Bihlmayer, G.
name: Bluegel, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the electronic and magnetic properties of the interfaces between the half-metallic Heusler alloy NiMnSb and the binary semiconductors InP and GaAs using two different state-of-the-art full-potential \textit{ab-initio} electronic structure methods. Although in the case of most NiMnSb/InP(001) contacts the half-metallicity is lost, it is possible to keep a high degree of spin-polarization when the interface is made up by Ni and P layers. In the case of the GaAs semiconductor the larger hybridization between the Ni-$d$ and As-$p$ orbitals with respect to the hybridization between the Ni-$d$ and P-$p$ orbitals destroys this polarization. The (111) interfaces present strong interface states but also in this case there are few interfaces presenting a high spin-polarization at the Fermi level which can reach values up to 74%.
description: 9 pages, 9 figures
Modeling Single Electron Transfer in Si:P Double Quantum Dots
Creators: name: Lee, K. H.
name: Greentree, A. D.
name: Dinale, J. P.
name: Escott, C. C.
name: Dzurak, A. S.
name: Clark, R. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solid-state systems such as P donors in Si have considerable potential for realization of scalable quantum computation. Recent experimental work in this area has focused on implanted Si:P double quantum dots (DQDs) that represent a preliminary step towards the realization of single donor charge-based qubits. This paper focuses on the techniques involved in analyzing the charge transfer within such DQD devices and understanding the impact of fabrication parameters on this process. We show that misalignment between the buried dots and surface gates affects the charge transfer behavior and identify some of the challenges posed by reducing the size of the metallic dot to the few donor regime.
description: 11 pages, 7 figures, submitted to Nanotechnology
A New Probe of the Planet-Forming Region in T Tauri Disks
Creators: name: Bergin, Edwin A.
name: Calvet, Nuria
name: Sitko, Michael L.
name: Abgrall, Herve
name: D'Alessio, Paola
name: Herczeg, Gregory J.
name: Roueff, Evelyne
name: Qi, Chunhua
name: Lynch, David K.
name: Russell, Ray W.
name: Brafford, Suellen M.
name: Perry, R. Brad
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new observations of the FUV (1100-2200 Angstrom) radiation field and the near- to mid-IR (3--13.5 micron) spectral energy distribution (SED) of a sample of T Tauri stars selected on the basis of bright molecular disks (GM Aur, DM Tau, LkCa15). In each source we find evidence for Ly alpha induced H2 fluorescence and an additional source of FUV continuum emission below 1700 Angstroms. Comparison of the FUV spectra to a model of H2 excitation suggests that the strong continuum emission is due to electron impact excitation of H2. The ultimate source of this excitation is likely X-ray irradiation which creates hot photo-electrons mixed in the molecular layer. Analysis of the SED of each object finds the presence of inner disk gaps with sizes of a few AU in each of these young (~1 Myr) stellar systems. We propose that the presence of strong H2 continuum emission and inner disk clearing are related by the increased penetration power of high energy photons in gas rich regions with low grain opacity.
description: 5 pages, 3 figures, accepted by ApJ Letters
Superconformal Gauge Theories and Non-Critical Superstrings
Creators: name: Klebanov, Igor R.
name: Maldacena, Juan M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider effective actions for six-dimensional non-critical superstrings. We show that the addition of $N$ units of R-R flux and of $N_f$ space-time filling D5-branes produces $AdS_5 \times S^1$ solutions with curvature comparable to the string scale. These solutions have the right structure to be dual to ${\cal N}=1$ supersymmetric SU(N) gauge theories with $N_f$ flavors. We further suggest bounds on the mass-squared of tachyonic fields in this background that should restrict the theory to the conformal window.
description: 16 pages, 1 figure v4: Minor changes
SU(N) chiral gauge theories on the lattice: a quick overview
Creators: name: Golterman, Maarten
name: Shamir, Yigal
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe how an SU(N) chiral gauge theory can be put on the lattice using non-perturbative gauge fixing. In particular, we explain how the Gribov problem is dealt with. Our construction is local, avoids doublers, and weak-coupling perturbation theory applies at the critical point which defines the continuum limit of our lattice chiral gauge theory.
description: Parallel talk presented at Lattice2004(chiral), Fermilab, June 21-26, 2004
The Cities of the Greek East after the First Mithridatic War. Aspects of Sulla’s Financial Policy
Creators: name: Rendina, Simone
Publisher: name: PHASIS
Year: 2020

description: The military results of Sulla’s war against Mithridates were inconclusive. Appian overlooked this fact, probably because his narrative of this war very much relied on the memoirs of Sulla himself or on a source that emphasized Sulla’s point of view. For the same reason, Appian did not really stress the harsh effects of the fines that Sulla imposed on many cities of the Greek East after the war. On the other hand, the end of the First Mithridatic War did contribute to the establishment of good relations among the Romans and notables from the Greek East, as has recently been claimed. By analyzing these facts, this paper reconstructs the aftermath of the First Mithridatic War and thus contributes to the reflections on the interaction between Rome and the Greek East.
description: PHASIS, No. 23 (2020)
Charge carrier inversion in a doped thin film organic semiconductor island
Creators: name: Schumacher, Zeno
name: Rejali, Rasa
name: Cowie, Megan
name: Spielhofer, Andreas
name: Miyahara, Yoichi
name: Grutter, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Inducing an inversion layer in organic semiconductors is a highly nontrivial, but critical, achievement for producing organic field-effect transistor (OFET) devices, which rely on the generation of inversion, accumulation, and depletion regimes for successful operation. In recent years, a major milestone was reached: an OFET was made to successfully operate in the inversion-mode for the first time. Here, we develop a pulsed bias technique to characterize the dopant type of any organic material system, without prior knowledge or characterization of the material in question. We use this technique on a pentacene/PTCDI heterostructure and thus deduce that pentacene is n-doped by impurities. Additionally, through tip-induced band-bending, we generate inversion, depletion, and accumulation regimes over a 20~nm radius, three monolayer thick n-doped pentacene island. Our findings demonstrate that nanometer-scale lateral extent and thickness are sufficient for an OFET device to operate in the inversion regime.
description: Updated manuscript with additional data and findings
Semileptonic decays of $D_{(s)}$ mesons
Creators: name: Yao, Zhao-Qian
name: Binosi, Daniele
name: Cui, Zhu-Fang
name: Roberts, Craig D.
name: Xu, Shu-Sheng
name: Zong, Hong-Shi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A symmetry-preserving continuum approach to meson bound-states in quantum field theory, employed elsewhere to describe numerous $π$- and $K$-meson electroweak processes, is used to analyse leptonic and semileptonic decays of $D_{(s)}$ mesons. Each semileptonic transition is conventionally characterised by the value of the dominant form factor at $t=0$ and the following results are obtained herein: $f_+^{D_s\to K}(0) = 0.673(40)$; $f_+^{D\to π}(0)=0.618(31)$; and $f_+^{D\to K}(0)=0.756(36)$. Working with the computed $t$-dependence of these form factors and standard averaged values for $|V_{cd}|$, $|V_{cs}|$, one arrives at the following predictions for the associated branching fractions: ${\cal B}_{D_s^+\to K^0 e^+ ν_e} = 3.31(33)\times 10^{-3}$; ${\cal B}_{D^0\to π^- e^+ ν_e} = 2.73(22)\times 10^{-3}$; and ${\cal B}_{D^0\to K^- e^+ ν_e} = 3.83(28)$%. Alternatively, using the calculated $t$-dependence, agreement with contemporary empirical results for these branching fractions requires $|V_{cd}|=0.221(9)$, $|V_{us}|=0.953(34)$. With all $D_{(s)}$ transition form factors in hand, the nature of SU$(3)$-flavour symmetry-breaking in this array of processes can be analysed; and just as in the $π$-$K$ sector, the magnitude of such effects is found to be determined by the scales associated with emergent mass generation in the Standard Model, not those originating with the Higgs mechanism.
description: 9 pages, 5 figures, 4 tables
Quantum mechanics in curved space-time
Creators: name: Barros, C. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper, the principles of the general relativity are used to formulate quantum wave equations for spin-0 and spin-1/2 particles. More specifically, the equations are worked in a Schwarzschild-like metric. As a test, the hydrogen atom spectrum is calculated. A comparison of the calculated spectrum with the numerical data of the deuterium energy levels shows a significant improvement of the accord, and the deviations are almost five times smaller then the ones obtained with the Dirac theory. The implications of the theory considering the strong interactions are also discussed.
Wpływ zmiany systemu wsparcia bezpośredniego dla finansów wielkotowarowych przedsiębiorstw rolnych
Creators: name: Kagan, Adam
name: Kagan, Adam
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: agricultural enterprises
subject: net financial result
subject: direct payments

description: The article discusses the effects for Polish large-scale agricultural enterprises of introducing in 2015 the new direct support scheme and payment amounts. On the basis of a simulation it was possible to establish the amount of subsidies that would likely be granted to enterprises under analysis. The former were compared with the level of support as calculated for 2013. This leads to a conclusion that under the new financial perspective, the subsidy level for large-scale agricultural enterprises will diminish significantly due to changes in subsidy instruments and the reduced single area payment for the largest beneficiaries. However, the decrease in support will have the greatest negative impact on shareholder companies of the State Treasury APA, which are active in creating and popularising biological progress. The second group that will be affected the most by the changes in the direct support scheme will be the agricultural production cooperatives
INNOVATIONS AND TRADITION - A DEEP DIVE INTO JAPAN'S EDUCATIONAL LANDSCAPE
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Japanese formal education
Teacher development
Entrepreneurial skills
Technology integration
Literacy development
Cultural elements
Interdisciplinary curriculum
Parental engagement
Cognitive development
Robotics in education

description: This article delves into the multifaceted landscape of formal education in Japan, exploring the interconnected elements that shape the country's approach to nurturing well-rounded individuals. From leveraging technology for teacher development to fostering entrepreneurial skills in children, the Japanese government's strategic focus encompasses diverse aspects. The integration of robotics, the emphasis on literacy, and the involvement of parents contribute to a holistic educational experience. This comprehensive exploration unveils Japan's dynamic paradigm, blending tradition with innovation, to prepare students for success in an ever-evolving global society.

 

Dieser Artikel befasst sich mit der vielfältigen Landschaft der formalen Bildung in Japan und untersucht die miteinander verbundenen Elemente, die den Ansatz des Landes zur Förderung vielseitiger Menschen prägen. Von der Nutzung von Technologie für die Lehrerentwicklung bis hin zur Förderung unternehmerischer Fähigkeiten bei Kindern umfasst der strategische Fokus der japanischen Regierung verschiedene Aspekte. Die Integration von Robotik, die Betonung der Alphabetisierung und die Einbeziehung der Eltern tragen zu einem ganzheitlichen Bildungserlebnis bei. Diese umfassende Untersuchung enthüllt Japans dynamisches Paradigma, das Tradition mit Innovation verbindet, um Schüler auf den Erfolg in einer sich ständig weiterentwickelnden globalen Gesellschaft vorzubereiten.
Searching for high-redshift centimeter-wave continuum, line and maser emission using the Square Kilometer Array
Creators: name: Blain, Andrew W.
name: Carilli, C. L.
name: Darling, Jeremy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the detection of redshifted line and continuum emission at radio wavelengths using a Square Kilometer Array (SKA), specifically from low-excitation rotational molecular line transitions of CO and HCN (molecular lines), the recombination radiation from atomic transitions in almost-ionized hydrogen (radio recombination lines; RRLs), OH and water maser lines, as well as from synchrotron and free-free continuum radiation and HI 21-cm line radiation. The detection of radio lines with the SKA offers the prospect to determine the redshifts and thus exact luminosities for some of the most distant and optically faint star-forming galaxies and active galactic nuclei (AGN), even those galaxies that are either deeply enshrouded in interstellar dust or shining prior to the end of reionization. Moreover, it provides an opportunity to study the astrophysical conditions and resolved morphologies of the most active regions in galaxies during the most active phase of star formation at redshift z~2. A sufficiently powerful and adaptable SKA correlator will enable wide-field three-dimensional redshift surveys at chosen specific high redshifts, and will allow new probes of the evolution of large-scale structure (LSS) in the distribution of galaxies. The detection of molecular line radiation favours pushing the operating frequencies of SKA up to at least 26 GHz, and ideally to 40 GHz, while very high redshift maser emissions requires access to about 100 MHz. To search for LSS the widest possible instantaneous field of view would be advantageous.
description: 12 pages, 2 figures. To appear in "Science with the Square Kilometer Array," eds. C. Carilli and S. Rawlings, New Astronomy Reviews (Elsevier: Amsterdam)
Stage-specific treatment costs for cervical cancer in the Salah Azaiez Institute of cancer in Tunisia
Creators: name: MZIOU, Emna
name: Khiari, Hyem
name: Gargouri, Mohamed
name: Hsairi, Mohamed
Publisher: name: Biomedicine & Healthcare Research
Year: 2024

description: Cervical cancer (CC) is the fourth leading cause of cancer in women worldwide. The World Health Organization recommends performing country-specific economic assessments before the implementation of any national strategy. In Tunisia, studies about the cost of CC are rare. The latest study was in 2003, 20years prior to our study. Our objective was to estimate the stage-specific costs associated with CC in the Salah Azaiez Institute of cancer in Tunisia. This was a cost study conducted at Salah Azaiez Institute in March 2023 consisting of two parts; collecting data about needed check-ups in every cervical cancer stage and estimating the financial cost of each procedure from the hospital's finance unit. The cost of cervical cancer diagnosis and treatment at Salah Azaiez Institute ranged from 550 to 2603 US$ depending on the cancer stage and the treatment involved. The initial checkup of cervical cancer (including gynecological examination, biopsy, MRI, and laboratory checkups) cost 350$. The diagnosis and treatments cost 550$ for the IA stage and 585$ for IB1 and IB2 stages. These costs were significantly lower than stages IB3, II, IIIA, IIIB, and IVA (2603$). The diagnosis and treatment costs were of 1800$ for stage IIIC and 750$ for stage IVB. In conclusion, this study contributed in delivering essential data of the financial burdens associated to diagnosis and treatment of CC in Tunisia. This study would be an important tool to guide current strategy to fight against cervical cancer in Tunisia
description: Biomedicine & Healthcare Research, Vol. 2 No. 1 (2024)
Resonance frequency and radiative Q-factor of plasmonic and dielectric modes of small objects
Creators: name: Forestiere, Carlo
name: Miano, Giovanni
name: Rubinacci, Guglielmo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The electromagnetic scattering resonances of a non-magnetic object much smaller than the incident wavelength in vacuum can be either described by the electroquasistatic approximation of the Maxwell's equations if its permittivity is negative, or by the magnetoquasistatic approximation if its permittivity is positive and sufficiently high. Nevertheless, these two approximations fail to correctly account for the frequency shift and the radiative broadening of the resonances when the size of the object becomes comparable to the wavelength of operation. In this manuscript, the radiation corrections to the electroquasistatic and magnetoquasistatic resonances of arbitrarily-shaped objects are derived, which only depend on the quasistatic current modes. Then, closed form expressions of the frequency-shift and the radiative Q-factor of both plasmonic and dielectric modes of small objects are introduced, where the dependencies on the material and the size of the object are factorized. In particular, it is shown that the radiative Q-factor explicitly depends on the multipolar components of the quasistatic modes.
Wpływ ubezpieczeń rolniczych na stabilność dochodową gospodarstw rolnych
Creators: name: Kobus, Paweł
name: Kobus, Paweł
Publisher: name: Unknown
Year: 2015
Subjects: subject: Farm Management
subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: Risk and Uncertainty
subject: income stability
subject: crop insurance
subject: stratified sampling
subject: generalized linear models

description: Despite a specific law obligation to insure at least 50% of the areas, only about 11% of the farmers insure crop. Such a low percentage of insurance raises the question of the reality of the stabilizing effect of crop insurance on income. In order to answer this question in the study the impact of crop insurance on the variance of gross value added in the farm was investigated. Based on a sample of 590 households, it was found that, such an effect exist only in the case of holdings specializing in crop production. Additionally, the importance of an adequate regression model, depending on the response variable distribution and sampling methods was shown.
Histopathological-molecular classifications of papillary thyroid cancers: Challenges in genetic practice settings
Creators: name: Bouayed Abdelmoula, Nouha
name: Abdelmoula, Balkiss
name: Masmoudi, Imen
name: Aloulou, Samir
Publisher: name: Biomedicine & Healthcare Research
Year: 2024

description: Thyroid cancer is a relatively rare disease. A literature review concerning frequencies and successive histopathological and molecular classifications of thyroid cancer was conducted to highlight new guidelines for molecular diagnostics to be implemented in practice for managing the most prevalent form of differentiated thyroid carcinomas, namely papillary thyroid cancer. Our study has shown that the frequency of thyroid cancer varies among countries, with its incidence rising faster than any other malignancy in recent decades, mainly owing to the increasing rate of detection of small cancers. Furthermore, the histopathological types of thyroid cancer have been redefined along successive WHO classifications. Indeed, to better stratify the prognosis and patient management, continuous improvements have been made to the classifications based on increasingly relevant criteria, ranging from histological structure to genetic signatures, and including cellular criteria of malignancy. In 1974, during the first edition of the WHO classifications, papillary thyroid cancer was defined as a malignant epithelial tumor containing a papillary structure. Faced with numerous issues of plethoric diagnosis and unnecessary treatments resulting from the binary distinction of thyroid proliferations into benign or malignant (in subsequent editions in 1988 and 2004), the fourth edition in 2017 added a third category, that of borderline thyroid tumors (uncertain malignant potential), with the introduction of nuclear features as major classification criteria. In the fifth edition (WHO 2022 classification), nuclear features and molecular signatures have become essential criteria, distinguishing thyroid neoplasms based on the signaling pathways involved. Thus, three groups of thyroid cancers have been separated based on mutational profiles and gene expression: 1/ the BRAFV600E-like cancer group involving BRAF V600E mutation and gene fusions involving BRAF, RET, NTRK1/3,ALK and MET; 2/ the RAS-like cancer group including NRAS, HRAS, KRAS, EIF1AX, DICER1, BRAF K601E mutations, and gene fusions involving PPARG and THADA; and 3/ the no-BRAF V600E/no-RAS-like neoplasms group involving PAX8/PPARG gene fusion and mutations in EZH1, IDH1, SOS1, SPOP, DICER1, and PTEN.
description: Biomedicine & Healthcare Research, Vol. 2 No. 1 (2024)
Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
Creators: name: Hankiewicz, E. M.
name: Molenkamp, L. W.
name: Jungwirth, T.
name: Sinova, Jairo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study theoretically the manifestation of the spin-Hall effect in a two-dimensional electronic system with Rashba spin-orbit coupling via dc-transport measurements in realistic mesoscopic H-shape structures. The Landauer-Buttiker formalism is used to model samples with mobilities and Rashba coupling strengths of current experiments and to demonstrate the appearance of a measurable Rashba-coupling dependent voltage. This type of measurement requires only metal contacts, i.e., no magnetic elements are present. We also confirm the robustness of the intrinsic spin-Hall effect against disorder in the mesoscopic metallic regime in agreement with results of exact diagonalization studies in the bulk.
description: 5 pages, 3 figures
Ocena stron internetowych przedsiębiorstw ekologicznych
Creators: name: Koreleska, Ewa
name: Kuczyńska, Beata
name: Koreleska, Ewa
name: Kuczyńska, Beata
Publisher: name: Unknown
Year: 2015
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: organic product
subject: organic company
subject: the Internet
subject: website
subject: communication

description: The aim of the article was to evaluate the websites of online organic companies. The research hypothesis has assumed that not fewer that a half of the organic companies has websites, which might be assessed at least as good ones. The research was carried out in April 2014. From the group of 91 companies from the list placed on the website of Centre of Agricultural Advisory in Radom,, the Department in Brwinów, there were selected only those, whose website address was correct and working. In total, there has been the evaluation of the websites of 40 companies with the use of multicriterial scoring methodology. In the evaluation, there have been included the technical, visual, functionality, the website usability criteria as well as the criteria relating to online shops only. The examined companies were additionally described with their activity, legal form, and the share of organic products in the total company offer. It has been determined that the majority of organic companies have their websites made at a good level, what confirms the assumed research hypothesis and proves that the majority is adjusted to the challenges of modern market.
Effects of self-consistent rest-ultraviolet colours in semi-empirical galaxy formation models
Creators: name: Mirocha, Jordan
name: Mason, Charlotte
name: Stark, Daniel P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Connecting the observed rest-ultraviolet (UV) luminosities of high-$z$ galaxies to their intrinsic luminosities (and thus star formation rates) requires correcting for the presence of dust. We bypass a common dust-correction approach that uses empirical relationships between infrared (IR) emission and UV colours, and instead augment a semi-empirical model for galaxy formation with a simple -- but self-consistent -- dust model and use it to jointly fit high-$z$ rest-UV luminosity functions (LFs) and colour-magnitude relations ($M_{\mathrm{UV}}$-$β$). In doing so, we find that UV colours evolve with redshift (at fixed UV magnitude), as suggested by observations, even in cases without underlying evolution in dust production, destruction, absorption, or geometry. The observed evolution in our model arises due to the reduction in the mean stellar age and rise in specific star formation rates with increasing $z$. The UV extinction, $A_{\mathrm{UV}}$, evolves similarly with redshift, though we find a systematically shallower relation between $A_{\mathrm{UV}}$ and $M_{\mathrm{UV}}$ than that predicted by IRX-$β$ relationships derived from $z \sim 3$ galaxy samples. Finally, assuming that high $1600 Å$ transmission ($\gtrsim 0.6$) is a reliable LAE indicator, modest scatter in the effective dust surface density of galaxies can explain the evolution both in $M_{\mathrm{UV}}$-$β$ and LAE fractions. These predictions are readily testable by deep surveys with the James Webb Space Telescope.
description: 14+4 pages, 11+5 figures, accepted for publication in MNRAS
Properties of the superconducting state in a two-band model
Creators: name: Nicol, E. J.
name: Carbotte, J. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Eliashberg theory is used to investigate the range of thermodynamic properties possible within a two-band model for s-wave superconductivity and to identify signatures of its two-band nature. We emphasize dimensionless BCS ratios (those for the energy gaps, the specific heat jump and the negative of its slope near Tc, the thermodynamic critical field Hc(0), and the normalized slopes of the critical field and the penetration depth near Tc), which are no longer universal even in weak coupling. We also give results for temperature-dependent quantities, such as the penetration depth and the energy gap. Results are presented both for microscopic parameters appropriate to MgB2 and for variations away from these. Strong coupling corrections are identified and found to be significant. Analytic formulas are provided which show the role played by the anisotropy in coupling in some special limits. Particular emphasis is placed on small interband coupling and on the opposite limit of no diagonal coupling. The effect of impurity scattering is considered, particularly for the interband case.
description: 20 pages, 14 figures, final version accepted in PRB
title: Entwicklung eines technischen Projekts für den gepanzerten Druckstollen des WKWS 'Kitnitsa'
Creators: name: Vasilev, Doncho Vasilev
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Druckstollen

description: Entwicklung eines technischen Projekts für den gepanzerten Druckstollen des WKWs "Kitnitsa" Es muss ein technisches Projekt für den gepanzerten Druckstollen des WKWs "Kintitsa" entwickelt werden. Für die Kaskade "Gorna Arda" ist es ein zweistufige Schema (ohne Damm "Sarnitsa") angenommen. Der gepanzerte Druckstollen ist ein Teil der Wasserkraftsstufe "Kitnitsa", die aus Staumauer "Adrino" und WKW "Kitnitsa" besteht. Die Entwicklung des Projekts ist im Einklang mit den folgenden Ausgangsdaten: 1. Ingenieurgeologische und hydrogeologische Dateien für das Gebiet der Einrichtungen. 2. Lageplan des Flussabschnittes und des Gebiets der Einrichtungen. 3. Lage der Staumauer "Adrino". 4. Ausbauwassermenge des WKWs "Kitnitsa": QAusbau = 68 m3/s 5. Koten der Wasserspiegel im Speicher "Adrino": - Stauziel (OWSmax) 523,00 -Überstau 525,50 -OWSmin 484,00 -UWS 326,30
Recirculation regions in wakes with base bleed
Creators: name: Steiros, K
name: Bempedelis, N
name: Ding, L
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The appearance of detached recirculation regions in wakes with base bleed determines the aerodynamic properties of many natural organisms and technological applications. In this work we introduce an analytical model which captures certain key dimensions of the recirculation region in the wake of porous plates of infinite aspect ratio, along with the porosity range \ks{over which} it exists, when vortex shedding is absent or suppressed. The model is used to interpret why the recirculation region (i) emerges, (ii) migrates away from the body with increasing base bleed, (iii) disappears at a critical bleed and (iv) is partially insensitive to variations in the Reynolds number. The model predictions show considerable agreement with data from laboratory experiments and numerical simulations. exists. The predictions show considerable agreement with data from laboratory experiments and numerical simulations.
description: 12 pages, 9 figures
Ring exchanges and the supersolid phase of 4He
Creators: name: Ceperley, D. M.
name: Bernu, B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using Path Integral Monte Carlo we calculate exchange frequencies in bulk hcp 4He as atoms undergo ring exchange. We fit the frequencies to a lattice model and examine whether such atoms could become a supersolid, that is have a non-classical rotational inertia. We find that the scaling with respect to the number of exchanging atoms is such that superfluid behavior will not be observed in a perfect 4He crystal.
Lactobacillus plantarum P9 alleviated chronic diarrhea via modulation of gut microbiota and intestinal metabolites: a RCT study
Creators: name: 杨妮(YANG NI)
Publisher: name: CNGB
Year: 2024
Subjects: Genome sequencing and assembly
Other
gut microbiota
Model organism

description: The therapeutic effect of probiotics for chronic diarrhea was controversial. This study aims to evaluate the Lactiplantibacillus plantarum P9 (P9) in patients with chronic diarrhea and explore intestinal microbiota and metabolite factors associated with response to P9.
Epidemiological insights into occupational cancers: A five-year retrospective analysis at the Tunisian institute of occupational health and safety
Creators: name: Nakhli, Rania
name: Kammoun, Nesrine
name: Rejeb, Jihen
name: Belhadj, Narjess
name: Fehri, Sonia
name: Nouaigui, Habib
Publisher: name: Biomedicine & Healthcare Research
Year: 2024

description: Cancer stands as the fourth leading cause of global mortality. Occupational exposures play a substantial role in the development of various types of cancer, including lung, colorectal, and breast cancer. The links between exposure to carcinogenic agents in the workplace and the subsequent development of various forms of cancer have been unequivocally established. This study aimed to analyze the epidemiological features of occupational cancers reported in the Tunisian Institute of Occupational Health and Safety during 2015−2020. This was a descriptive retrospective investigation, focusing on cases of reported occupational cancers that were documented during clinical consultations at the Institute of Occupational Health and Safety in Tunisia over the period from 2015 to 2020. Epidemiological features were analysed by year, region, industry, gender, age at diagnosis, and exposure duration to occupational hazards. A total of 7 patients sought consultation to evaluate the potential occupational origins of their cancers. The mean age of patients was 60.14 ± 10 years. All subjects had a history of smoking (7 cases), with an average of 22 pack-years. Alcohol consumption was reported in a solitary patient. In each case, a definitive occupational link was established. The patients held diverse occupational roles: miners (3 cases), construction workers (2 cases), machine operators (1 case), and maintenance agents (1 case). The average duration of occupational exposure was 27 years. Six patients had bronchopulmonary cancer. One patient had bladder cancer. Symptoms manifested, on average, 20 years after starting employment. Detailed occupational scrutiny unveiled exposure to distinct hazardous agents: silica particles (4 cases), asbestos (1 case), solvents (1 case), and nickel (1 case). Correspondingly, the reported cancer cases were classified under specific categories of the Tunisian list of compensable occupational diseases. The study underscores the significant but often overlooked role of occupational agents in the development of bronchial and bladder cancer. Urgent preventive actions, such as the implementation of protective equipment and automation of certain processes, are crucial to reducing the occurrence of occupational cancers.
description: Biomedicine & Healthcare Research, Vol. 2 No. 1 (2024)