cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ZMIANY W ZUŻYCIU ŚRODKÓW OCHRONY ROŚLIN W POLSCE I ICH ASPEKTY EKONOMICZNE
Creators: name: Urban, Stanisław
name: Urban, Stanisław
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: means of plant protection
subject: biologically active substance
subject: agricultural production means
subject: agriculture
subject: prices

description: The paper is prepared to analyze their usage in Poland in 2005-2012. In that term the steady increase was observed. For agriculture the plant protection means are among the most important production means. The sales of the imported means of plant protection was on the increase, though, there was the decline in sales of domestic means .The increase was noticeable in almost every means of plant protection use. Furthermore, the highest increase in use of herbicides and insecticides was observed. According to Polish farmers the means of plant protection are expensive in Poland. However, the recent growth in their prices is not too high. The improvement of relation of their prices to agricultural products ones in 2010-2012 was held up as the result of the growth of some agricultural products prices.
Additional file 3 of Target Product Profiles for medical tests: a systematic review of current methods
Creators: name: Cocco, Paola
name: Anam Ayaz-Shah
name: Messenger, Michael Paul
name: West, Robert Michael
name: Shinkins, Bethany
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 3. Results.
Think national, forecast local: A case study of 71 German urban housing markets: a case study of 71 German urban housing markets
Creators: name: Kholodilin, Konstantin A.
name: Siliverstovs, Boriss
Publisher: name: ETH Zurich
Year: 2015
Subjects: GRUNDSTÜCKPREISE + IMMOBILIENPREISE
WOHNUNGSMARKT
Housing prices and rents
DEUTSCHLAND (MITTELEUROPA). BUNDESREPUBLIK DEUTSCHLAND
VORHERSAGE (ALLGEMEIN)
LAND RENT + GROUND RENT + HOUSE RENT
Spatial dependence
PREDICTION (GENERAL)
Germany
GERMANY (CENTRAL EUROPE). FEDERAL REPUBLIC OF GERMANY
LAND PRICES + REAL ESTATE PRICES
HOUSING MARKET
BODENRENTE + GRUNDSTUECKRENTE + HAUSRENTE
Forecast combinations
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 372
KN and KbarN Elastic Scattering in the Quark Potential Model
Creators: name: Wanng, Hai-Jhun
name: Yang, Hui
name: Su, Jun-Chen
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The KN and KbarN low-energy elastic scattering is consistently studied in the framework of the QCD-inspired quark potential model. The model is composed of the t-channel one-gluon exchange potential, the s-channel one-gluon exchange potential and the harmonic oscillator confinement potential. By means of the resonating group method, nonlocal effective interaction potentials for the KN and KbarN systems are derived and used to calculate the KN and KbarN elastic scattering phase shifts. By considering the effect of QCD renormalization, the contribution of the color octet of the clusters (qqbar) and (qqq) and the suppression of the spin-orbital coupling, the numerical results are in fairly good agreement with the experimental data.
description: 20 pages, 8 figures
Monte Carlo study of a generalized icosahedral model on the simple cubic lattice
Creators: name: Hasenbusch, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the critical behavior of a generalized icosahedral model on the simple cubic lattice. The field variable of the icosahedral model might take one of twelve vectors of unit length, which are given by the normalized vertices of the icosahedron, as value. Similar to the Blume-Capel model, where in addition to $-1$ and $1$, as in the Ising model, the spin might take the value $0$, we add in the generalized model $(0,0,0)$ as allowed value. There is a parameter $D$ that controls the density of these voids. For a certain range of $D$, the model undergoes a second-order phase transition. On the critical line, $O(3)$ symmetry emerges. Furthermore, we demonstrate that within this range, similar to the Blume-Capel model on the simple cubic lattice, there is a value of $D$, where leading corrections to scaling vanish. We perform Monte Carlo simulations for lattices of a linear size up to $L=400$ by using a hybrid of local Metropolis and cluster updates. The motivation to study this particular model is mainly of technical nature. Less memory and CPU time are needed than for a model with $O(3)$ symmetry at the microscopic level. As the result of a finite-size scaling analysis we obtain $ν=0.71164(10)$, $η=0.03784(5)$, and $ω=0.759(2)$ for the critical exponents of the three-dimensional Heisenberg universality class. The estimate of the irrelevant renormalization group eigenvalue that is related with the breaking the $O(3)$ symmetry is $y_{ico}=-2.19(2)$.
description: 44 Pages, 13 figures, Revised version: minor changes of the text, typos corrected, Refs. 16 and 31 updated
SUBWENCJA OGÓLNA JAKO ŹRÓDŁO DOCHODÓW GMIN POWIATU WŁODAWSKIEGO
Creators: name: Wesołowski, Grzegorz
name: Kobiałka, Anna
name: Wesołowski, Grzegorz
name: Kobiałka, Anna
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: Public Economics
subject: general subsidy
subject: income of communes
subject: public finances

description: According to assumptions for the legislator the general subsidy is supposed to constitute only an instrument eliminating appearing differences in levels of the own income get by self-government units of this type. Conducted analyses are pointing, that general subsidy, against assumptions legislatora (which treats her as supplementing the own income), is performing the role of the main source of revenue for the majority of communes of the Włodawa district. Conducted examinations also showed that the used mechanism at setting amount of the basic quota, compensatory part, general subsidy not always reflected the real income situation of communes. This effective leveling the income situation of self-government units of this type is making it impossible.
Melting Domain Size and Recrystallization Dynamics of Ice Revealed by Time-Resolved X-ray Scattering
Creators: name: Yang, Cheolhee
name: Ladd-Parada, Marjorie
name: Nam, Kyeongmin
name: Jeong, Sangmin
name: You, Seonju
name: Späh, Alexander
name: Pathak, Harshad
name: Eklund, Tobias
name: Lane, Thomas J.
name: Lee, Jae Hyuk
name: Eom, Intae
name: Kim, Minseok
name: Winkel, Katrin Amann-
name: Perakis, Fivos
name: Nilsson, Anders
name: Kim, Kyung Hwan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The phase transition between water and ice is ubiquitous and one of the most important phenomena in nature. Here, we performed time-resolved x-ray scattering experiments capturing the melting and recrystallization dynamics of ice. The ultrafast heating of ice I is induced by an IR laser pulse and probed with an intense x-ray pulse, which provided us with direct structural information on different length scales. From the wide-angle x-ray scattering (WAXS) patterns, the molten fraction, as well as the corresponding temperature at each delay, were determined. The small-angle x-ray scattering (SAXS) patterns, together with the information extracted from the WAXS analysis, provided the time-dependent change of the size and the number of the liquid domains. The results show partial melting (~13 %) and superheating of ice occurring at around 20 ns. After 100 ns, the average size of the liquid domains grows from about 2.5 nm to 4.5 nm by the coalescence of approximately six adjacent domains. Subsequently, we capture the recrystallization of the liquid domains, which occurs on microsecond timescales due to the cooling by heat dissipation and results to a decrease of the average liquid domain size.
Theory of the endpoint region of exclusive rare B decays
Creators: name: Grinstein, Benjamin
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the ratio of ratios of rates for radiative and semileptonic decays of B and D to K* and rho mesons the non-computable form factors mostly cancel out. The resulting method for the determination of Vub is largely free of hadronic uncertainties, raising the prospect of a precise determination of Vub.
description: 4 pages, 2 figures, talk presented at ICHEP04, Beijing, China, August 2004
Elastic and Inelastic Scattering of Cosmic-Rays on Sub-GeV Dark Matter
Creators: name: Guo, Gang
name: Tsai, Yue-Lin Sming
name: Wu, Meng-Ru
name: Yuan, Qiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the signatures from collisions of cosmic-rays on sub-GeV dark matter (DM) in the Milky Way. In addition to the upscattered DM component that can be probed by existing DM and neutrino experiments widely discussed, we examine the associated signals in $γ$-rays and neutrinos that span a wide energy range due to the inelastic scatterings. Assuming a simple vector portal DM model for illustration, we compute both the upscattered DM flux by cosmic-ray protons, and the resulting emission of secondary $γ$-rays and high-energy neutrinos from proton excitation, hadronization, and the subsequent meson decay. We derive limits on coupling constants in the vector portal model using data from the $γ$-ray and high-energy neutrino telescopes including Fermi, H.E.S.S. and IceCube. These limits are compared to those obtained by considering the upscattered DM signals at the low-energy DM/neutrino detectors XENON1T/MiniBooNE and the IceCube. For this particular model, the limits are set predominantly by non-detection of the upscattered DM events in XENON1T, for most of the DM mass range due to the large scattering cross section at low energies. Nevertheless, our study demonstrates that the $γ$-ray and neutrino signals, traditionally considered as indirect probes for DM annihilation and decay, can also be directly used to constrain the DM--nucleon interaction in complementary to the direct search experiments.
description: 17 pages, 7 figures; Published version
The Age-Dependence of the Detectabiity of Comets Orbiting Solar-Type Stars
Creators: name: Jura, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The outflows from comets in orbit around G-type main-sequence stars can be detected when they produce transient OH absorption lines in the spectrum near 3100 Angstroms of the host star. There is only about a 3 X 10^{-8} probability of detecting an analog to comet Hale-Bopp orbiting an analog to the Sun. However, for young solar-type stars with very large numbers of comets, possibly delivering water to terrestrial planets, there is as much as a 1% chance that any sufficiently sensitive, randomly-timed observation may detect such transient absorption.
description: 6 pages, 1 figure, accepted by ApJ
Social Phases in Human Movement
Creators: name: Zhang, Yi
name: Sarker, Debasish
name: Mitsven, Samantha
name: Perry, Lynn
name: Messinger, Daniel
name: Song, Chaoming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Recent empirical studies found different thermodynamic phases for collective motion in animals. However, such a thermodynamic description for human movement remains unclear, mainly due to the limited resolution of existing tracking technologies. In this Letter, we used a new ultra-wideband radio frequency identification technology to collect high-resolution spatial-temporal data for classroom movements. We measured the effective temperatures for the underlying systems, and found two social phases, gas and liquid-vapor coexistence, associated with different temperatures. We also proposed a simple statistical physics model that can reproduce different empirically observed phases.
Hall--Littlewood functions and the A_2 Rogers--Ramanujan identities
Creators: name: Warnaar, S. Ole
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 05E05; 05A17; 05A19

description: We prove an identity for Hall--Littlewood symmetric functions labelled by the Lie algebra A_2. Through specialization this yields a simple proof of the A_2 Rogers--Ramanujan identities of Andrews, Schilling and the author.
description: 25 pages, typos corrected
AGROBIZNES W STRATEGIACH ROZWOJU LOKALNEGO
Creators: name: Wiatrak, Andrzej Piotr
name: Wiatrak, Andrzej Piotr
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: agribusiness
subject: region
subject: local scale
subject: strategy
subject: development

description: The content of the article consists of the following issues: local scale, development and strategic planning at the local level, essence, directions and determinants of functioning and development of agribusiness at the local scale. The aim of the article was to determine essence and conditions functioning of the agribusiness in rural and semi-urban communes and indications that agribusiness may be a tool for local development. However local strategies in Poland , as is evident from the discussion, insufficiently take into account the development of agribusiness, and especially its non-agricultural branches, and link them together. It would be desirable to develop activities in agribusiness based on integration and network connections between the various branches of agribusiness, especially at the local level.
Open-charm tetraquark $X_c$ and open-bottom tetraquark $X_b$
Creators: name: He, Xiao-Gang
name: Wang, Wei
name: Zhu, Ruilin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the LHCb observation of exotic states $X_{0,1}(2900)$ with four open quark flavors in the $D^- K^+$ invariant mass distribution in the decay channel $B^\pm \to D^+ D^- K^\pm$, we study the spectrum and decay properties of the open charm tetraquarks. Using the two-body chromomagnetic interactions, we find that the two newly observed states can be interpreted as a radial excited tetraquark with $J^P=0^+$ and an orbitally excited tetraquark with $J^P=1^-$, respectively. We then explore the mass and decays of the other flavor-open tetraquarks made of $su \bar d \bar c$ and $ d s \bar u \bar c$, which are in the $\bar 6$ or $15$ representation of the flavor SU(3) group. We point that these two states can be found through the decays: $X^{(\prime)}_{d s \bar{u}\bar{c}}\to (D^- K^-, D_s^- π^-) $, and $X^{(\prime)}_{s u \bar{d}\bar{c}}\to D_s^-π^+ $. We also apply our analysis to open bottom tetraquark $X_b$ and predict their masses. The open-flavored $X_b$ can be discovered through the following decays: $X_{ud\bar s\bar{b}}\to B^0K^+$, $X^{(\prime)}_{d s \bar{u}\bar{b}}\to (B^0 K^-, B_s^0 π^-) $, and $X^{(\prime)}_{s u \bar{d}\bar{b}}\to B_s^0π^+ $.
description: 9 pages, 4 tables; the published version
PROBLEMATYKA GOSPODAROWANIA ODPADAMI KOMUNALNYMI NA OBSZARACH WIEJSKICH NA PRZYKŁADZIE WOJEWÓDZTWA POMORSKIEGO
Creators: name: Wielewska, Izabela
name: Prus, Piotr
name: Wielewska, Izabela
name: Prus, Piotr
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: waste management
subject: rural areas
subject: communal waste
subject: mixed waste
subject: recycling
subject: the duties of the boroughs

description: The study presents the issue of communal waste management in rural areas, on the example of Pomorskie Province. From 1st July 2013, the duties specified by the Act of 1st July 2011 changing the previous Act concerning keeping the boroughs clean (and some other acts), the boroughs take over the duty of waste management in return for fees from individuals who produce the waste (residents). According to data from the Provincial Inspectorate of Environmental Protection in Gdańsk, in 2012 and 2013 many boroughs failed to reach recycling target levels, i.e. preparation for reuse, recovery of certain parts of communal waste by alternative methods and limitation in the volume of biodegradable communal waste, as specified in the Act. Waste storage directly influences the natural environment, therefore it has become so important to limit the volume of waste and to sensibly appoint the locations of landfills. As of 31st December 2012, there were 34 active landfills in Pomorskie Province.
Additional file 1 of The trinity of ecological contrasts: a case study on rich insect assemblages by means of species, functional and phylogenetic diversity measures
Creators: name: Guariento, Elia
name: Strutzenberger, Patrick
name: Truxa, Christine
name: Fiedler, Konrad
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1. Overview of supplementary measures of species diversity, evenness and phylogenetic diversity of moth communities. Means (95% confidence limits) of 12 additional measures for species and phylogenetic diversity across 28 moth assemblages in three east Austrian riverine regions, according to the flood regime of the forest stands. Panels refer to: observed specie richness (Sobs); Pielou’s evenness (J); Simpson’s lambda; Fisher’s alpha; Shannon’s logarithmic diversity (Hʹ); Shannon’s exponential diversity (expHʹ); the indexes of Margalef, Menihinck, and Brillouin; the Hill numbers N2 and Ninf; and the net relatedness index (NRI).
On the mass of a Kerr-anti-de Sitter spacetime in D dimensions
Creators: name: Deruelle, Nathalie
name: Katz, Joseph
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how to compute the mass of a Kerr-anti-de Sitter spacetime with respect to the anti-de Sitter background in any dimension, using a superpotential which has been derived from standard Noether identities. The calculation takes no account of the source of the curvature and confirms results obtained for black holes via the first law of thermodynamics.
description: minor changes; accepted by CQG
NIERÓWNOŚCI W ROZKŁADZIE DOCHODÓW I WYDATKÓW GOSPODARSTW DOMOWYCH ROLNIKÓW W POLSCE
Creators: name: Wołoszyn, Andrzej
name: Wysocki, Feliks
name: Wołoszyn, Andrzej
name: Wysocki, Feliks
Publisher: name: Unknown
Year: 2014
Subjects: subject: Labor and Human Capital
subject: income inequality
subject: income and expenditure distributions
subject: inequality measures
subject: farmers’ households

description: The article analyzes inequalities in income and expenditure distribution of farmers’ households in Poland along with the households operating small (up to 5 ha UAA) and large (30 ha UAA and more) farmsteads. The underlying microdata came from the Household Budget Survey conducted by Polish Central Statistical Office in 2010. The analysis of inequalities employed quintile share ratio (S80/S20), Gini index and empirical distribution in expenditure groups formed as tenths of the national median. Two approaches to the quantification of inequality were considered : one based on disposable income, the other on total expenditures. Median income of farmers’ households constituted 82%, while median expenditures 88% of the respective national medians. The analysis of expenditure based measures showed that inequality among farmers’ households did not differ much from the inequality among all Polish households. The households operating small farmsteads exhibited less within inequality than households operating large farmsteads or the body of all Polish households.
Hexagonal boron nitride as an ideal substrate for carbon nanotube photonics
Creators: name: Fang, N.
name: Otsuka, K.
name: Ishii, A.
name: Taniguchi, T.
name: Watanabe, K.
name: Nagashio, K.
name: Kato, Y. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hexagonal boron nitride is widely used as a substrate for two-dimensional materials in both electronic and photonic devices. Here, we demonstrate that two-dimensional hexagonal boron nitride is also an ideal substrate for one-dimensional single-walled carbon nanotubes. Nanotubes directly attached to hexagonal boron nitride show bright photoluminescence with narrow linewidth at room temperature, comparable to air-suspended nanotubes. Using photoluminescence excitation spectroscopy, we unambiguously assign the chiralities of nanotubes on boron nitride by tracking individual tubes before and after contact with boron nitride. Although hexagonal boron nitride has a low dielectric constant and is attached to only one side of the nanotubes, we observe that optical transition energies are redshifted as much as ~50 meV from the air-suspended nanotubes. We also perform statistical measurements on more than 400 tubes, and the redshifts are found to be dependent on tube diameter. This work opens up new possibilities for all-solid-state carbon nanotube photonic devices by utilizing hexagonal boron nitride substrates.
description: 7 pages, 5 figures
When to expect a coup d’état? An extreme bounds analysis of coup determinants
Creators: name: Gassebner, Martin
name: Gutmann, Jerg
name: Voigt, Stefan
Publisher: name: ETH Zurich
Year: 2016
Subjects: subject: Extreme bounds analysis
subject: REVOLUTION + UMSTURZ (INNENPOLITIK)
subject: Coup-proofing
subject: INTERNAL POLITICAL CONFLICTS
subject: INTERNATIONAL COMPARISONS (POINT OF VIEW)
subject: Coups d'état
subject: ECONOMIC GROWTH
subject: WIRTSCHAFTSWACHSTUM
subject: REVOLUTION + SUBVERSION (INTERNAL POLITICS)
subject: Military coups
subject: INTERNATIONALER VERGLEICH (GESICHTSPUNKT)
subject: INNENPOLITISCHE KONFLIKTE
subject: info:eu-repo/classification/ddc/330
subject: info:eu-repo/classification/ddc/320
subject: Economics
subject: Political science
subject: FOS: Political science

description: KOF Working Papers, 409
title: Analyse von Ermüdung und Verschleiß an Rohrturbinen Komponenten bei Primärregelung
Creators: name: Hanslauer, Georg
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Kaplanturbine
subject: Primärregelung
subject: Laufradschonung
subject: Ermüdung
subject: Verschleiß
subject: Kaplanturbine
subject: primary control
subject: turbine protection
subject: fatigue
subject: wearing

description: Der zur Energiewende notwendige Zuwachs erneuerbarer Energien in der Stromproduktion, bringt Änderungen der Anforderungen mit sich, welche in der Zeit vor der Etablierung von Wind-, Bio- und Solarenergie sekundär erschienen. Immer mehr Wasserkraftwerke werden zur Erzeugung von Primärenergie eingesetzt. Das bedeutet, sie übernehmen eine ausgleichende Funktion für das Netz in Bezug auf Leistungs- bzw. Nachfrageschwankungen und reagieren darauf in kürzester Zeit. Diese sind dazu grundsätzlich sehr gut geeignet, nur müssen die veränderten Rahmenbedingungen und deren Folgen für den Betrieb analysiert werden. Wichtigstes Merkmal dabei ist die Zunahme an Verstellbewegungen aufgrund der stark schwankenden Netzfrequenz. Auf die dadurch implizierte Erhöhung der Belastung, die sich in einer Steigerung von Ermüdung und Verschleiß niederschlägt, reagierte "Andritz Hydro GmbH" mit der Entwicklung einer speziellen Reglerparametrisierung für Kaplanturbinen, welche die Stellbewegungen des Laufrads zur Leistungsänderung, also in weiterer Folge die Beanspruchung der einzelnen Komponenten reduzieren soll und gleichzeitig die Kriterien der Primärregelung erfüllt. Die Diplomarbeit untersucht die Auswirkungen dieser "Laufradschonung" in Bezug auf Materialermüdung und Verschleiß der einzelnen Laufrad- und Leitapparatkomponenten.
Additional file 1 of Large-scale evaluation of interventions designed to reduce childhood Drownings in rural Bangladesh: a before and after cohort study
Creators: name: Olakunle Alonge
name: Bishai, David
name: Wadhwaniya, Shirin
name: Agrawal, Priyanka
name: Aminur Rahman
name: Emdad Md. Dewan Hoque
name: Baset, Kamran Ul
name: Shumona Sharmin Salam
name: Al-Amin Bhuiyan
name: Md Irteja Islam
name: Talab, Abu
name: Rahman, Qazi Sadeq-Ur
name: Fazlur Rahman
name: Shams El-Arifeen
name: Hyder, Adnan A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Appendix 1. Instructions to caregivers on the use of the playpens.
Classification of particle trajectories in living cells: machine learning versus statistical testing hypothesis for fractional anomalous diffusion
Creators: name: Janczura, Joanna
name: Kowalek, Patrycja
name: Loch-Olszewska, Hanna
name: Szwabiński, Janusz
name: Weron, Aleksander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Single-particle tracking (SPT) has become a popular tool to study the intracellular transport of molecules in living cells. Inferring the character of their dynamics is important, because it determines the organization and functions of the cells. For this reason, one of the first steps in the analysis of SPT data is the identification of the diffusion type of the observed particles. The most popular method to identify the class of a trajectory is based on the mean square displacement (MSD). However, due to its known limitations, several other approaches have been already proposed. With the recent advances in algorithms and the developments of modern hardware, the classification attempts rooted in machine learning (ML) are of particular interest. In this work, we adopt two ML ensemble algorithms, i.e. random forest and gradient boosting, to the problem of trajectory classification. We present a new set of features used to transform the raw trajectories data into input vectors required by the classifiers. The resulting models are then applied to real data for G protein-coupled receptors and G proteins. The classification results are compared to recent statistical methods going beyond MSD.
description: 32 pages, 5 figures
Crossing the Phantom Divide: Dark Energy Internal Degrees of Freedom
Creators: name: Hu, Wayne
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Dark energy constraints have forced viable alternatives that differ substantially from a cosmological constant Lambda to have an equation of state w that evolves across the phantom divide set by Lambda. Naively, crossing this divide makes the dark energy gravitationally unstable, a problem that is typically finessed by unphysically ignoring the perturbations. While this procedure does not affect constraints near the favored cosmological constant model it can artificially enhance the confidence with which alternate models are rejected. Similar to the general problem of stability for w< 0, the solution lies in the internal degrees of freedom in the dark energy sector. We explicitly show how to construct a two scalar field model that crosses the phantom divide and mimics the single field behavior on either side to substantially better than 1% in all observables. It is representative of models where the internal degrees of freedom keep the dark energy smooth out to the horizon scale independently of the equation of state.
description: 4 pages, 2 figures; changes reflect PRD published version
OGRANICZENIE STRAT PRODUKTÓW MLECZARSKICH W HANDLU DETALICZNYM JAKO ELEMENT SPOŁECZNIE ODPOWIEDZIALNEGO BIZNESU
Creators: name: Wrzosek, Małgorzata
name: Bilska, Beata
name: Kołożyn-Krajewska, Danuta
name: Krajewski, Karol
name: Wrzosek, Małgorzata
name: Bilska, Beata
name: Kołożyn-Krajewska, Danuta
name: Krajewski, Karol
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: CSR
subject: loss of food
subject: retail
subject: dairy products

description: Food losses means a reducing of supply food, which is used as intended, due to mismanagement, errors and irregularities in its management processes, extending from the manufacturing to distribution. The concept, which could facilitate measures to reduce food losses is strategy of Corporate Social Responsibility (CSR), having regard to the responsibility of enterprises for their impact on society. The aim of this study was to analyze the causes of losses in milk and dairy products at the retail level, which was the basis to determine limits and possibilities of food recovery. Own survey showed that 40% of the losses were caused by exceeding the shelf life and 60% was resulted from mechanical damage of the packs. The possibility of responsible product management and recovery for transferred through non-governmental organizations to people in need was indicated in this study.
Line formation in solar granulation VI. [C I], C I, CH and C2 lines and the photospheric C abundance
Creators: name: Asplund, M.
name: Grevesse, N.
name: Sauval, A. J.
name: Prieto, C. Allende
name: Blomme, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The solar photospheric carbon abundance has been determined from [C I], C I, CH vibration-rotation, CH A-X electronic and C2 Swan electronic lines by means of a time-dependent, 3D, hydrodynamical model of the solar atmosphere. Departures from LTE have been considered for the C I lines. These turned out to be of increasing importance for stronger lines and are crucial to remove a trend in LTE abundances with the strengths of the lines. Very gratifying agreement is found among all the atomic and molecular abundance diagnostics in spite of their widely different line formation sensitivities. The mean of the solar carbon abundance based on the four primary abundance indicators ([C I], C I, CH vibration-rotation, C_2 Swan) is log C = 8.39 +/- 0.05, including our best estimate of possible systematic errors. Consistent results also come from the CH electronic lines, which we have relegated to a supporting role due to their sensitivity to the line broadening. The new 3D based solar C abundance is significantly lower than previously estimated in studies using 1D model atmospheres.
description: Accepted for A&A, 13 pages
Sharp upper bounds for Steklov eigenvalues of a hypersurface of revolution with two boundary components in Euclidean space
Creators: name: Tschanz, Léonard
Publisher: name: arXiv
Year: 2023
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We investigate the question of sharp upper bounds for the Steklov eigenvalues of a hypersurface of revolution of the Euclidean space with two boundary components isometric to two copies of $\mathbb{S}^{n-1}$. For the case of the first non zero Steklov eigenvalue, we give a sharp upper bound $B_n(L)$ (that depends only on the dimension $n \ge 3$ and the meridian length $L>0$) which is reached by a degenerated metric $g^*$, that we compute explicitly. We also give a sharp upper bound $B_n$ which depends only on $n$. Our method also permits us to prove some stability properties of these upper bounds.
description: 29 pages, 7 figures
Sigma models with local couplings: a new integrability -- RG flow connection
Creators: name: Hoare, Ben
name: Levine, Nat
name: Tseytlin, Arkady A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider several classes of $σ$-models (on groups and symmetric spaces, $η$-models, $λ$-models) with local couplings that may depend on the 2d coordinates, e.g. on time $τ$. We observe that (i) starting with a classically integrable 2d $σ$-model, (ii) formally promoting its couplings $h_α$ to functions $h_α(τ)$ of 2d time, and (iii) demanding that the resulting time-dependent model also admits a Lax connection implies that $h_α(τ)$ must solve the 1-loop RG equations of the original theory with $τ$ interpreted as RG time. This provides a novel example of an 'integrability - RG flow' connection. The existence of a Lax connection suggests that these time-dependent $σ$-models may themselves be understood as integrable. We investigate this question by studying the possibility of constructing non-local and local conserved charges. Such $σ$-models with $D$-dimensional target space and time-dependent couplings subject to the RG flow naturally appear in string theory upon fixing the light-cone gauge in a $(D+2)$-dimensional conformal $σ$-model with a metric admitting a covariantly constant null Killing vector and a dilaton linear in the null coordinate.
description: 31 pages. v2: comments on earlier related work; v3: references added
A note to "Radial limits of quasiregular Local Homeomorphisms''
Creators: name: Guo, Chang-Yu
name: Xuan, Yi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C65, 30C80, 31B15

description: In this short note, we consider quasiregular local homeomorphisms on uniform domains. We prove that such mappings always can be extended to some boundary points along John curves, which extends the corresponding result of Rajala [Amer. J. Math. 2008].
description: 18 pages
Growth, heat increment of feeding and gut blood flow in rainbow trout
Creators: name: Eliason, Erika Jennifer
Publisher: name: University of British Columbia
Year: 2010

description: Juvenile rainbow trout were fed to satiation three different isocaloric diets of high (H), medium (M), or low (L) protein (P) and lipid (L) concentrations [protein: lipid ratios were: 55%:10% (HP:LL); 45%:15% (MP:ML) and 35%:20% (LP:HL) ] during an 8-week growth trial. Fish fed the HP:LL diet were composed of significantly more protein (18.2%) and significantly less lipid (9.1%) compared to those fed the other two diets. However, growth performance parameters (specific growth rate, feed efficiency and dry feed intake) did not vary significantly among diets. Even so, the LP:HL diet resulted in a greater percent protein deposition (37.6 ± 2.2%) over the 8-week trial and a greater protein efficiency ratio (2.3 ± 0.1) compared to HP:LL diet (29.4 ± 1.0% and 1.6 ± 0.0, respectively), suggesting a protein sparing effect. These same fish were maintained on the diet treatments and postprandial gut blood flow (GBF) and oxygen consumption (MO₂) were assessed following a single meal (by gavage) of 2% of their body mass. There were no significant differences among diet treatments for MO₂, GBF or heart rate. When the three diet treatments were pooled, standard metabolic rate (SMR), baseline GBF and baseline heart rate were 52.6 ± 2.5 mg O₂ kg⁻¹ h⁻¹, 4.0 ± 0.2 ml min⁻¹ kg⁻¹ and 34.2 ± 1.8 beat min⁻¹, respectively. Compared with these values and after accounting for the effect of handling for gavage, minimum MO₂, GBF and heart rate had increased significantly by 4-h postprandial, and peak increases were 119%, 153% and 75-115%, respectively. In fish equipped with a Transonic flow probe fed a second time, all three variables had returned to baseline levels between 24-h and 48-h postprandial, as was the case in un-probed fish. In contrast, fish with a GBF probe fed 48 h after surgery displayed elevated postprandial MO₂ and GBF for the entire duration of the 80-h study. This extended elevation was likely due to prolonged digestion associated with surgery. The metabolic cost of the diets (as a % of digestible energy) was low (4.0-9.7%) and did not differ among these diet formulations.
The different development of the anisotropic upper critical field in MgB2 by aluminum and carbon doping
Creators: name: Angst, M.
name: Bud'ko, S. L.
name: Wilke, R. H. T.
name: Canfield, P. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The temperature dependence of the upper critical field, Hc2, for both field directions in partially substituted polycrystalline MgB2 was determined. Whereas the suppression of Tc is similar for aluminum and carbon substituted samples, Hc2 is affected by the substitution in profoundly different ways. In the case of Al substitution changes can tentatively be described by intrinsic effects (shift of the Fermi level). In the C substituted samples, Hc2 is increased drastically, and extrinsic effects (disorder) have to play a major role. The strong contrast between the two substitutions is discussed, taking into account three relevant scattering rates.
description: 6 pages, 4 figures
MOŻLIWOŚCI FINANSOWANIA INWESTYCJI GMIN WIEJSKICH W POLSCE
Creators: name: Zawora, Jolanta
name: Zawora, Jolanta
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: investment financing
subject: rural communities

description: The aim of the study was to assess the possibility of financing development activities in rural communities in Poland in the years 2007-2013. In the paper there were assessed financing capacity of local investments and the scope of realized investment activity. The analysis show that rural communities had higher values of indicators for assessing the ability of financing investment than other types of municipalities. In the analyzed period decreased investment potential of all Polish communities, while their indebtedness increased. Despite the fact that rural municipalities had lower incomes. They implemented higher investment expenditure in relation to the total expenditure than other municipalities. Unfortunately, the level of the executed investments decreased after 2011 in all Polish municipalities.
Feature Selection with Annealing for Forecasting Financial Time Series
Creators: name: Pabuccu, Hakan
name: Barbu, Adrian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Finance (q-fin.CP)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: 68T07

description: Stock market and cryptocurrency forecasting is very important to investors as they aspire to achieve even the slightest improvement to their buy or hold strategies so that they may increase profitability. However, obtaining accurate and reliable predictions is challenging, noting that accuracy does not equate to reliability, especially when financial time-series forecasting is applied owing to its complex and chaotic tendencies. To mitigate this complexity, this study provides a comprehensive method for forecasting financial time series based on tactical input output feature mapping techniques using machine learning (ML) models. During the prediction process, selecting the relevant indicators is vital to obtaining the desired results. In the financial field, limited attention has been paid to this problem with ML solutions. We investigate the use of feature selection with annealing (FSA) for the first time in this field, and we apply the least absolute shrinkage and selection operator (Lasso) method to select the features from more than 1,000 candidates obtained from 26 technical classifiers with different periods and lags. Boruta (BOR) feature selection, a wrapper method, is used as a baseline for comparison. Logistic regression (LR), extreme gradient boosting (XGBoost), and long short-term memory (LSTM) are then applied to the selected features for forecasting purposes using 10 different financial datasets containing cryptocurrencies and stocks. The dependent variables consisted of daily logarithmic returns and trends. The mean-squared error for regression, area under the receiver operating characteristic curve, and classification accuracy were used to evaluate model performance, and the statistical significance of the forecasting results was tested using paired t-tests. Experiments indicate that the FSA algorithm increased the performance of ML models, regardless of problem type.
description: 37 pages, 1 figures and 12 tables
Modelling hystereses observed during dwarf-nova outbursts
Creators: name: Hameury, J. -M.
name: Knigge, C.
name: Lasota, J. -P.
name: Hambsch, F. -J.
name: James, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context. Although the disc instability model is widely accepted as the explanation for dwarf nova outbursts, it is still necessary to confront its predictions to observations because much of the constraints on angular momentum transport in accretion discs are derived from the application of this model to real systems. Aims. We test the predictions of the model concerning the multicolour time evolution of outbursts for two well--observed systems, SS Cyg and VW Hyi. Methods. We calculate the multicolour evolution of dwarf nova outbursts using the disc instability model and taking into account the contribution from the irradiated secondary, the white dwarf and the hot spot. Results. Observations definitely show the existence of a hysteresis in the optical colour-magnitude diagram during the evolution of dwarf nova outbursts. We find that the disc instability model naturally explains the existence and the orientation of this hysteresis. For the specific cases of SS Cyg and VW Hyi, the colour and magnitude ranges covered during the evolution of the system are in reasonable agreement with observations. However, the observed colours are bluer than observed near the peak of the outbursts -- as in steady systems, and the amplitude of the hysteresis cycle is smaller than observed. The predicted colours significantly depend on the assumptions made for calculating the disc spectrum during rise, and on the magnitude of the secondary irradiation for the decaying part of the outburst. Conclusions. Improvements of the spectral disc models are strongly needed if one wishes to address the system evolution in the UV.
description: Accepted for publication in Astronomy and Astrophysics
Structure of the electrospheres of bare strange stars
Creators: name: Usov, V. V.
name: Harko, T.
name: Cheng, K. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider a thin ($\sim 10^2-10^3$ fm) layer of electrons (the electrosphere) at the quark surface of a bare strange star, taking into account the surface effects at the boundary with the vacuum. The quark surface holds the electron layer by an extremely strong electric field, generated in the electrosphere to prevent the electrons from escaping to infinity by counterbalancing the degeneracy and thermal pressure. Because of the surface tension and depletion of $s$ quarks a very thin (a few fm) charged layer of quarks forms at the surface of the star. The formation of this layer modifies the structure of the electrosphere, by significantly changing the electric field and the density of the electrons, in comparison with the case when the surface effects are ignored. Some consequences of the modification of the electrosphere structure on the properties of strange stars are briefly discussed.
description: 23 pages, 6 figures, to appear in ApJ
Estimating inbreeding in an inbred line of Japanese quail (Coturnix Japonica) using pedigree and microsatellite analyses
Creators: name: Kim, Shin Hun
Publisher: name: University of British Columbia
Year: 2010

description: Accurately estimating the level of inbreeding in a population is essential because inbreeding reduces fitness, fertility, viability, hatchability, and other production traits in populations. Inbreeding has been estimated by analyses of pedigrees and genetic markers. The objective of this study was to evaluate the accuracy of the two methods in an inbred line of Japanese quail. The inbred line was derived from a random bred (QO) line and maintained for 17 generations by pedigreed matings of brothers to groups of sisters. Data from analysis of 14 microsatellite markers, GUJ0001, GUJ0024, GUJ0030, GUJ0034, GUJ0040, GUJ0044, GUJ0057, GUJ0059, GUJ0060, GUJ0065, GUJ0068, GUJ0070, GUJ0071, and GUJ0085, were obtained. Pedigree data were used to calculate the inbreeding coefficient (FIT), which is the level of inbreeding based on a reference ancestor. From the microsatellite locus data, the population differentiation (Fst) of the two lines caused by inbreeding was calculated as Fst=1-(He(inb)/He(rand)), where He(inb) and He(rand) are the expected heterozygosity of the inbred and the random bred lines, respectively. The Fit was then calculated as Fit = Fis+(1 -Fis)*Fst, where Fis is the level of inbreeding within the inbred line. The heterozygosity observed by analysis of the microsatellite markers of the randombred and inbred lines was 0.430 and 0.207, respectively, and the number of alleles was 3.29 and 1.93, respectively, demonstrating that genetic diversity was reduced in the inbred line. The Fit of the inbred line from the pedigree and microsatellite marker analyses was 0.687 (±0.069) and 0.567 (±0.329), respectively. These results suggest that pedigree analysis seems to be more accurate than microsatellite marker analyses without multi-generation genotyping for estimating inbreeding in an inbred line of Japanese quail. Further studies will be required to investigate reasons for the high standard deviation of microsatellite marker analyses.
Stable and metastable phases for the Curie-Weiss-Potts model in vector-valued fields via singularity theory
Creators: name: Kuelske, Christof
name: Meissner, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B20 (Primary) 82B26, 82C20 (Secondary)

description: We study the metastable minima of the Curie-Weiss Potts model with three states, as a function of the inverse temperature, and for arbitrary vector-valued external fields. Extending the classic work of Ellis/Wang and Wang we use singularity theory to provide the global structure of metastable (or local) minima. In particular, we show that the free energy has up to four local minimizers (some of which may at the same time be global) and describe the bifurcation geometry of their transitions under variation of the parameters.
description: 31 pages, 7 figures