cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ocena potencjału migracyjnego młodzieży z obszarów peryferyjnych Polski południowo – wschodniej
Creators: name: Cymanow, Piotr
name: Florek-Paszkowska, Anna
name: Cymanow, Piotr
name: Florek-Paszkowska, Anna
Publisher: name: Unknown
Year: 2013
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: labor migrations
subject: youth
subject: submountain areas
subject: / migracje zarobkowe
subject: młodzież
subject: obszary podgórskie

description: The article describes one of the important problems related to labor migrations, especially in regard to peripheral regions suffering from a considerable civilization gap, i.e. the phenomenon of the so-called “brain drain”. It affects both graduates and young people who, at the start of their professional careers, encounter significant barriers to the Polish labor market. Also the potential scale of internal and external migrations was analyzed and the importance of factors determining the selection of the migration destination as well as the importance of factors affecting the nature of jobs were evaluated, taking into account expectations related to wages and salaries of potential migrants. / Synopsis. W artykule opisano jeden z istotnych problemów związanych z migracjami zarobkowymi – zwłaszcza w odniesieniu do regionów peryferyjnych o znaczącym zapóźnieniu cywilizacyjnym, jakim jest zjawisko tzw. „drenażu mózgów” (brain drain). Problem ten dotyczy w głównej mierze absolwentów i osób młodych, które w obliczu rozpoczynania kariery zawodowej napotykają na istotne bariery polskiego rynku pracy. Przeanalizowano potencjalną skalę migracji wewnętrznych i zewnętrznych, oceniono rangę czynników determinujących wybór miejsca migracji oraz znaczenie elementów wpływających na charakter podejmowanej pracy z uwzględnieniem oczekiwań płacowych potencjalnych migrantów.
Heat flux sensing by anomalous Nernst effect in Fe-Al thin films on a flexible substrate
Creators: name: Zhou, W.
name: Sakuraba, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed a numerical analysis of the material parameters required for realizing a heat flux sensor exploiting the anomalous Nernst effect (ANE). The results showed the importance of high thermopower of ANE ($S_{\text{ANE}}$) and small saturation magnetization. This motivated us to investigate the effect of Al substitution of Fe on ANE and found $S_{\text{ANE}} =$ 3.4 $μ$V/K in Fe$_{81}$Al$_{19}$ because of the dominant intrinsic mechanism. Using this material, we made a prototype ANE-based heat flux sensor on a thin flexible polyimide sheet and demonstrated accurate sensing with it. This study gives important information for enhancing sensor sensitivity.
description: 11 pages, 4 figures
Microlensing Surveys of M31 in the Wide Field Imaging Era
Creators: name: Baltz, Edward A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way, thus it is an important laboratory for studying massive dark objects in galactic halos (MACHOs) by gravitational microlensing. Such studies strongly complement the studies of the Milky Way halo using the the Large and Small Magellanic Clouds. We consider the possibilities for microlensing surveys of M31 using the next generation of wide field imaging telescopes with fields of view in the square degree range. We consider proposals for such imagers both on the ground and in space. For concreteness, we specialize to the SNAP proposal for a space telescope and the LSST proposal for a ground based telescope. We find that a modest space-based survey of 50 visits of one hour each is considerably better than current ground based surveys covering 5 years. Crucially, systematic effects can be considerably better controlled with a space telescope because of both the infrared sensitivity and the angular resolution. To be competitive, 8 meter class wide-field ground based imagers must take exposures of several hundred seconds with several day cadence.
description: 10 pages, 4 figures, 2 tables
Genetic evaluation of natural and domesticated lodgepole pine populations using molecular markers
Creators: name: Liewlaksaneeyanawin, Cherdsak
Publisher: name: University of British Columbia
Year: 2010

description: Lodgepole pine (P. contorta ssp. latifolia) has been recently subject to breeding and artificial propagation, and has also undergone migration and range expansion since the Pleistocene glaciation. This thesis studied the genetic effects of these processes, in terms of patterns of genetic diversity, sibship structure, and mating system. For these inferences, cross-species transfer of Pinus teada microsatellite (SSR) markers provided a battery of 23 polymorphic microsatellite primer pairs for lodgepole pine, and amplified fragment length polymorphism (AFLP) markers were also developed. Genetic variability in natural and domesticated populations from interior British Columbia (Prince George breeding zone) was investigated with both SSRs and AFLPs. Changes from the natural population, to the breeding population, to the seed orchard, and finally to seed and seedling populations, were estimated. AFLPs and SSRs did not always reveal the same trends, except in portraying the genetic relationship among natural and domesticated populations. Overall, some reduction of genetic diversity was observed along the domestication process (2-10%), but only for some stages and dependent on marker type. Two peripheral lodgepole pine populations, representing outcomes of the historical migration-expansion of this species, were sampled and genotyped for progeny arrays. Estimation of mating system parameters revealed high outcrossing rate and low correlated paternity in both populations, as well as the difficulties in using dominant AFLP markers for these inferences. Sibship analyses of SSRs supported low correlated paternity. Biparental inbreeding was significant in both, and more pronounced in the most northern population (compared to the eastern population), reflecting lower stand density and founder effects. A new characterization of genomic diversity, the "correlation of diversity between linked loci", was estimated in both populations, as well as in the central (Prince George) population. Significant correlations were observed in both peripheral populations, but not in the central population, suggesting range-expansion effects. As expected, higher correlations were observed for more closely linked loci. The correlation of diversity extended out to ca. 10 map units in both peripheral populations, much further than linkage disequilibrium can extend. While such correlations may be due to genetic drifts, it is possible that the signature of selection may be obscured by demographic factors associated with mating system.
Biztonság, terrorizmus, turizmus
Creators: name: Dávid, Lóránt
name: Molnár, Ferenc
name: Bujdosó, Zoltán
name: Dereskey, Anna
name: Dávid, Lóránt
name: Molnár, Ferenc
name: Bujdosó, Zoltán
name: Dereskey, Anna
Publisher: name: Unknown
Year: 2007
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: terrorizmus
subject: turizmus jövője
subject: fenyegetettség
subject: merényletek
subject: terrorism
subject: future of tourism
subject: threat level
subject: attacks

description: A biztonság a turizmus egyik alapvető problémájává vált. A 2001 óta tartó időszakban a korábban ritkán jelentkező terrorcselekmények számának gyakoribbá válásával, a csapások helyszíneinek kiszámíthatatlanságával a turizmus szektorban új helyzet formálódott. Magyarországon a 2007-2013-as időszakban a turizmus erőteljes továbbfejlődését irányozzák elő. Remélhető, hogy hazánk felkészültsége, a nemzetközi tapasztalatok hasznosítása mind a potenciális fenyegetettség mérséklésében, mind a helyszínek biztonságos voltának erősítésében képes ellensúlyozni a terrorizmus okozta kockázatokat. ----------------- Security has become one of the fundamental problems in tourism. In the period since 2001 the increasing occurrence of previously rare acts of terror, and the unpredictability of their location, have created a new situation in the tourist sector. The vigorous development of tourism is the aim in Hungary during 2007-2013. It is to be hoped that Hungary’s preparedness and utilisation of international experience – both in mitigating potential threats and in strengthening the security of locations – will be able to counteract the risks caused by terrorism.
The Dynamic Structure Factor of the 1D Bose Gas near the Tonks-Girardeau Limit
Creators: name: Brand, Joachim
name: Cherny, Alexander Yu.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: While the 1D Bose gas appears to exhibit superfluid response under certain conditions, it fails the Landau criterion according to the elementary excitation spectrum calculated by Lieb. The apparent riddle is solved by calculating the dynamic structure factor of the Lieb-Liniger 1D Bose gas. A pseudopotential Hamiltonian in the fermionic representation is used to derive a Hartree-Fock operator, which turns out to be well-behaved and local. The Random-Phase approximation for the dynamic structure factor based on this derivation is calculated analytically and is expected to be valid at least up to first order in $1/γ$, where $γ$ is the dimensionless interaction strength of the model. The dynamic structure factor in this approximation clearly indicates a crossover behavior from the non-superfluid Tonks to the superfluid weakly-interacting regime, which should be observable by Bragg scattering in current experiments.
description: 4 pages, 2 figures misprints in formulas corrected
ZASOBY KAPITAŁU LUDZKIEGO NA OBSZARACH WIEJSKICH W POLSCE
Creators: name: Klonowska-Matynia, Maria
name: Klonowska-Matynia, Maria
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: human capital
subject: resources
subject: rural areas
subject: HC indicator

description: The main aim of this article is to estimate human capital resources on rural areas in Poland based on the human capital indicator. Following questions were formed: What is the state of human capital resources on rural areas in Poland? Which regions posses the highest/ lowest of human capital resources? How are rural areas in Poland diversified in terms of human capital resources? The assumption of differences in the resources of human capital on rural areas in Poland was verified. The available literature, statistical data of the Central Statistical Office, of the BDL (the Bank of Local Data), census data were used to estimate HC resources indicator.
POLSKI EKSPORT JABŁEK NA TLE ŚWIATOWEGO HANDLU JABŁKAMI
Creators: name: Kraciński, Paweł
name: Kraciński, Paweł
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: foreign trade
subject: apples export

description: The article analyzes size, value and structure of the export of apples from Poland. Major exporters and importers were identified, and trends in foreign apple trade were analyzed. Markets of the major and potential recipients of the Polish fruit were examined. Price competitiveness of the Polish products was specified. Analysis covered the years 2001-2012. It was found that importance of the CIS countries in the export of apples has been growing, whereas importance of the EU-12 has been decreasing. Quantitatively, sales to the EU-15 have been increasing but participation of the old EU in the structure of sales has decreased. Average prices of export of the Polish fruit were significantly lower than import prices on the markets of Great Britain, Holland, Belgium and Germany.
Network-based ranking in social systems: three challenges
Creators: name: Mariani, Manuel S.
name: Lü, Linyuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Ranking algorithms are pervasive in our increasingly digitized societies, with important real-world applications including recommender systems, search engines, and influencer marketing practices. From a network science perspective, network-based ranking algorithms solve fundamental problems related to the identification of vital nodes for the stability and dynamics of a complex system. Despite the ubiquitous and successful applications of these algorithms, we argue that our understanding of their performance and their applications to real-world problems face three fundamental challenges: (i) Rankings might be biased by various factors; (2) their effectiveness might be limited to specific problems; and (3) agents' decisions driven by rankings might result in potentially vicious feedback mechanisms and unhealthy systemic consequences. Methods rooted in network science and agent-based modeling can help us to understand and overcome these challenges.
description: Perspective article. 9 pages, 3 figures
Multiphoton path entanglement by non-local bunching
Creators: name: Eisenberg, H. S.
name: Hodelin, J. F.
name: Khoury, G.
name: Bouwmeester, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multiphoton path entanglement is created without applying post-selection, by manipulating the state of stimulated parametric down-conversion. A specific measurement on one of the two output spatial modes leads to the non-local bunching of the photons of the other mode, forming the desired multiphoton path entangled state. We present experimental results for the case of a heralded two-photon path entangled state and show how to extend this scheme to higher photon numbers.
description: 4 pages, 5 figures, published version
Thermodynamic advancement in the causally inseparable occurrence of thermal maps
Creators: name: Guha, Tamal
name: Alimuddin, Mir
name: Parashar, Preeti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum mechanics allows the occurrence of events without having any definite causal order. Here, it is shown that the application of two different thermal channels in the causally inseparable order can enhance the potential to extract work, in contrast to any of their definite (separable) order of compositions. This enhancement is also possible even without assigning any thermodynamic resource value to the controlling qubit. Further, we provide the first non-trivial example of causal enhancement with non-unital pin maps, for which it is still not clear how to obtain a superposition of path structure (under definite causal order). Hence, it may be a potential candidate to accentuate the difference between superposition of time and superposition of path.
description: 6+2 pages, 6 figures
KONSORCJUM NAUKOWO-BADAWCZE SPOSOBEM NA TRANSFER WIEDZY I TECHNOLOGII W SEKTORZE BIOGOSPODARKI PÓŁNOCNO-ZACHODNIEJ POLSKI
Creators: name: Łącka, Irena
name: Łącka, Irena
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: knowledge and technology transfer
subject: consortium
subject: science sector
subject: R&D cooperation
subject: bioeconomy

description: The aim of the article is to present a history of creation, activity and perspectives of Północno-Zachodnie Centrum Biogospodarki. It is a consortium of science and research units with business partners from the provinces – West Pomeranian, Wielkopolska and Lubuskie. Using the case study method for this example, the authoress it is shows that the integration of human and material resources of science and research institutions in that consortium allows to overcome challenges of bioeconomy. The results of this cooperation will contribute to the effective transfer of knowledge and technology from the world of science to the economy.
How is information transmitted in a nerve?
Creators: name: Peyrard, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In the last fifteen years a debate emerged about the validity of the famous Hodgkin-Huxley model for nerve impulse. Mechanical models have been proposed. This note reviews the experimental properties of the nerve impulse and discusses the proposed alternatives. The experimental data, which rule out some of the alternative suggestions, show that, while the Hodgkin-Huxley model may not be complete, it nevertheless includes essential features that should not be overlooked in the attempts made to improve, or supersede, it.
description: Revised version, accepted for publication in the Journal of Biological Physics, 2020
Facilitators to immediate post partum intrauterine contraceptive device uptake among mothers delivering in meru hospital
Creators: name: Kirigia, Consolata
Publisher: name: figshare
Year: 2020
Subjects: subject: 111006 Midwifery
subject: FOS: Health sciences

description: Facilitators to immediate post partum intrauterine contraceptive device uptake among mothers delivering in meru hospital
Characterization of plasma and gas-phase chemistry during boron-nitride nanomaterial synthesis by laser-ablation of boron-rich targets
Creators: name: Yatom, Shurik
name: Raitses, Yevgeny
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this work, solid targets made from boron and boron nitride (BN) materials are ablated by a nanosecond pulsed laser at sub-atmospheric pressures of nitrogen and helium gases. Excited species in the ablation plume from the target are probed with spatiotemporally resolved optical emission spectroscopy (OES). Evaluation of chemical composition in the plasma plume revealed that for both boron-rich targets, emission from BN molecules is always observed in nitrogen-rich environments. In addition, BN molecules also present when ablating a boron nitride target in helium gas -- an indication that BN molecules in the plume may originate from the solid target. Furthermore, the ablation of BN target features emission of B2N molecules, regardless of the pressure and surrounding gas. These results suggest that the ablation of the BN target is more favorable for the generation of complex molecules containing boron and nitrogen species and possibly hint that BN is also more favorable feedstock for high-yield BN nanomaterial synthesis. Plasma parameters such as electron temperature (peak value of 1.3 eV) and density (peak value of 2x10^18 cm^-3) were also investigated in this work in order to discuss the chemical dynamics in the plume.
Isomorph invariance of classical crystals' structure and dynamics
Creators: name: Albrechtsen, Dan E.
name: Olsen, Andreas E.
name: Pedersen, Ulf R.
name: Schrøder, Thomas B.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper shows by computer simulations that some crystalline systems have curves in their thermodynamic phase diagrams, so-called isomorphs, along which structure and dynamics in reduced units are invariant to a good approximation. The crystals are studied in a classical-mechanical framework, which is generally a good description except significantly below melting. The existence of isomorphs for crystals is validated by simulations of particles interacting via the Lennard-Jones pair potential arranged into a face-centered cubic (FCC) crystalline structure; the slow vacancy-jump dynamics of a defective FCC crystal is also shown to be isomorph invariant. In contrast, a NaCl crystal model does not exhibit isomorph invariances. Other systems simulated, though in less detail, are the Wahnstrom binary Lennard-Jones crystal with the ${\rm MgZn_2}$ Laves crystal structure, monatomic FCC crystals of particles interacting via the Buckingham pair potential and via a novel purely repulsive pair potential diverging at a finite separation, an ortho-terphenyl molecular model, and SPC/E hexagonal ice. Except for NaCl and ice, the crystals simulated all have isomorphs. Based on these findings and previous simulations of liquid models, we conjecture that crystalline solids with isomorphs include most or all formed by atoms or molecules interacting via metallic or van der Waals forces, whereas covalently- or hydrogen-bonded crystals are not expected to have isomorphs. Crystals of ions or dipolar molecules constitute a limiting case for which isomorphs are only expected when the Coulomb interactions are relatively weak. We briefly discuss the consequences of the findings for theories of melting and crystallization.
RYNEK ŚRODKÓW OCHRONY ROŚLIN W POLSCE W 2012 ROKU W UJĘCIU ILOŚCIOWYM I WARTOŚCIOWYM
Creators: name: Matyjaszczyk, Ewa
name: Matyjaszczyk, Ewa
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: plant protection products
subject: pesticides
subject: market
subject: Poland
subject: sales
subject: use
subject: value
subject: volume

description: Sales of plant protection products in Poland per hectare of arable land was in 2012 significantly lower than European Union (EU) average, both in terms of volume and value. The data for Poland amounted to 0.92 kg of active substance/ha or 27.7 EUR/ha with EU average respectively 1.52 kg/ha and 57.2 EUR/ha. Both in Poland and in the EU the two main groups of plant protection products on the market were herbicides and fungicides. However the share of herbicides in Poland both in the terms volume and value was more than half and fungicides about 40% of the market, while in the EU the share of fungicides was higher than in Poland, and the share of herbicides – lower. „Home and garden” plant protection products market in Poland had completely different structure with clear dominance of insecticides.
Nonlinear electrodynamics with birefringence
Creators: name: Kruglov, S. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: A new model of nonlinear electrodynamics with three parameters is suggested. The phenomena of vacuum birefringence takes place when there is the external constant magnetic field. We calculate the indices of refraction for two polarizations of electromagnetic waves, parallel and perpendicular to the magnetic induction field. From the Biréfringence Magnétique du Vide (BMV) experiment one of the coefficients, $γ\approx 10^{-20}$ T$^{-2}$, was estimated. The canonical, symmetrical Belinfante energy-momentum tensors and dilatation current were obtained. The dilatation symmetry and the dual symmetry are broken in the model considered.
description: 9 pages, no figures, accepted for publication in Phys.Lett.A
Improving XMM-Newton EPIC pn data at low energies: method and application to the Vela SNR
Creators: name: Dennerl, Konrad
name: Aschenbach, Bernd
name: Briel, Ulrich G.
name: Brunner, Hermann
name: Burwitz, Vadim
name: Englhauser, Jakob
name: Freyberg, Michael J.
name: Haberl, Frank
name: Hartner, Gisela
name: Iyudin, Anatoli F.
name: Kendziorra, Eckhard
name: Meidinger, Norbert
name: Pfeffermann, Elmar
name: Pietsch, Wolfgang
name: Strueder, Lothar
name: Zavlin, Vyacheslav E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: High quantum efficiency over a broad spectral range is one of the main properties of the EPIC pn camera on-board XMM-Newton. The quantum efficiency rises from ~75% at 0.2 keV to ~100% at 1 keV, stays close to 100% until 8 keV, and is still ~90% at 10 keV. The EPIC pn camera is attached to an X-ray telescope which has the highest collecting area currently available, in particular at low energies (more than 1400 cm2 between 0.1 and 2.0 keV). Thus, this instrument is very sensitive to the low-energy X-ray emission. However, X-ray data at energies below ~0.2 keV are considerably affected by detector effects, which become more and more important towards the lowest transmitted energies. In addition to that, pixels which have received incorrect offsets during the calculation of the offset map at the beginning of each observation, show up as bright patches in low-energy images. Here we describe a method which is not only capable of suppressing the contaminations found at low energies, but which also improves the data quality throughout the whole EPIC pn spectral range. This method is then applied to data from the Vela supernova remnant.
description: Proc. SPIE Vol. 5488: Astronomical Telescopes and Instrumentation, UV - Gamma-Ray Space Telescope Systems, Eds. Guenther Hasinger and Martin J. Turner, 22-24 June 2004, Glasgow, Scotland United Kingdom
A Least-Squares Formulation of the Moving Discontinuous Galerkin Finite Element Method with Interface Condition Enforcement
Creators: name: Kercher, Andrew D.
name: Corrigan, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A least-squares formulation of the Moving Discontinuous Galerkin Finite Element Method with Interface Condition Enforcement (LS-MDG-ICE) is presented. This method combines MDG-ICE, which uses a weak formulation that separately enforces a conservation law and the corresponding interface condition and treats the discrete geometry as a variable, with the Discontinuous Petrov-Galerkin (DPG) methodology of Demkowicz and Gopalakrishnan to systematically generate optimal test functions from the trial spaces of both the discrete flow field and discrete geometry. For inviscid flows, LS-MDG-ICE detects and fits a priori unknown interfaces, including shocks. For convection-dominated diffusion, LS-MDG-ICE resolves internal layers, e.g., viscous shocks, and boundary layers using anisotropic curvilinear $r$-adaptivity in which high-order shape representations are anisotropically adapted to accurately resolve the flow field. As such, LS-MDG-ICE solutions are oscillation-free, regardless of the grid resolution and polynomial degree. Finally, for both linear and nonlinear problems in one dimension, LS-MDG-ICE is shown to achieve optimal convergence of the $L^2$ solution error with respect to the exact solution when the discrete geometry is fixed and super-optimal convergence when the discrete geometry is treated as a variable.
description: 38 pages, 20 figures, this work is a direct extension of arXiv:2002.12740
The Casimir effect for a cavity in the presence of compactified universal extra dimension
Creators: name: Cheng, Hongbo
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We reexamine the Casimir effect for the rectangular cavity with two or three equal edges in the presence of compactified universal extra dimension. We derive the expressions for the Casimir energy and discuss the nature of Casimir force. We show the extra-dimension corrections to the standard Casimir effect.
description: 7 pages, 2 figures
title: Passive space cooling in Abu Dhabi: guidelines to advance the implementation of estidama pearl villa rating system
Creators: name: Almazrouei, Jehad Saeed Ebrahim Ali
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Passive cooling
subject: passive house
subject: Estidama
subject: Abu Dhabi
subject: Villa

description: The Estidama Pearl Villa Rating System, herein PVRS, provide broad criteria for sustainable villa design and construction. However, explicit implementation of specific purposes such as energy conservation require further development of the PVRS. This Master's thesis identifies potential guidelines for advancing the passive design of villas in Abu Dhabi prescribed in the credit criteria 'Cool building strategies' coded RE-2 in the PVRS. Analysis of energy consumption for space cooling using weather normalized electrical consumption per household reveals deteriorating energy efficiency in Abu Dhabi buildings causing increasing electrical energy demand for air-conditioning. Consequently, the need for passive space cooling in building design is central to achieve sustainability. Guidelines and implementation recommendations for passive cooling design in compliance with Estidama PVRS are listed according to three main types of passive cooling techniques; prevention of heat gains, modulation of heat gains and dissipation of heat gains to be implemented together as part of passive cooling strategy in villas i.e. not interchangeably as suggested by the performance method or the prescriptive method in RE-2. The specific guidelines and implementation recommendations are complemented with general guidelines aimed for integrated design. The analysis in this study are mainly based on data and charts obtained from ClimateTool, a planning tool for international building, and DegreeDays, a weather online database for energy professionals, and literature conclusions on buildings efficiency in Abu Dhabi. In addition, screenshots from DVD: Best Practices for Building Design are illustrated for reference on state of the art implementation practices in the subject matter for hot and humid climate in the United States.
Relativistic quantum communication with bosonic and fermionic interferometers
Creators: name: Kok, Pieter
name: Braunstein, Samuel L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the relativistic transformation laws for the annihilation operators of the scalar field, the massive spin-1 vector field, the electromagnetic field and the spinor field. The technique developed here involves straightforward mathematical techniques based on fundamental quantum field theory, and is applicable to the study of entanglement in arbitrary coordinate transformations. In particular, it predicts particle creation for non-inertial motion. Furthermore, we present a unified description of relativistic transformations and multi-particle interferometry with bosons and fermions, which encompasses linear optical quantum computing.
description: 7 pages, no figures
PLONOWANIE WYBRANYCH GATUNKÓW ROŚLIN W POLSCE, NIEMCZECH I 27 KRAJACH UNII EUROPEJSKIEJ W LATACH 1961-2012
Creators: name: Matyka, Mariusz
name: Matyka, Mariusz
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: dynamic of changes
subject: yielding
subject: the European Union

description: The aim of paper is indication the dynamics and trends in changes of yield potential main cultivated crops in Poland compared to Germany and the European Union in the years 1961-2012. The source materials for the paper were the international official statistics data from the FAOSTAT database. Wheat yields in Poland in 2012 were lower than in the EU-27 and Germany accordingly by 23 and 44%, rye 22 and 54%, rape 16 and 30% and sugar beet 16 and 17%. Yields of maize throughout the analyzed period were similar to the EU-27 average. In contrast, constantly deepen the unfavorable difference in the yields of this species between Polish and Germany. Indicated trends show that agricultural farms in Poland do not fully utilize the progress of biological, technical and organizational. Resulting in much slower than it is in the EU-27 and Germany increased yields of main cultivated crops.
Network reachability of real-world contact sequences
Creators: name: Holme, Petter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We use real-world contact sequences, time-ordered lists of contacts from one person to another, to study how fast information or disease can spread across network of contacts. Specifically we measure the reachability time -- the average shortest time for a series of contacts to spread information between a reachable pair of vertices (a pair where a chain of contacts exists leading from one person to the other) -- and the reachability ratio -- the fraction of reachable vertex pairs. These measures are studied using conditional uniform graph tests. We conclude, among other things, that the network reachability depends much on a core where the path lengths are short and communication frequent, that clustering of the contacts of an edge in time tend to decrease the reachability, and that the order of the contacts really do make sense for dynamical spreading processes.
description: (v2: fig. 1 fixed)
Quantum rolling tachyon
Creators: name: Ambjorn, Jan
name: Janik, Romuald A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the quantum treatment of the rolling tachyon background describing the decay of D-branes in the limit of weak string coupling. We focus on the propagation of an open string in the fluctuating background and show how the boundary string action is modified by quantum effects. A bilocal term in the boundary action is generated which, however, does not spoil the vanishing of the $β$ function at one loop. The propagation of an open string for large times is found to be very strongly suppressed.
description: 13 pages
Cylindric skew Schur functions
Creators: name: McNamara, Peter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E05 (Primary) 06A07, 14N35 (Secondary)

description: Cylindric skew Schur functions, which are a generalisation of skew Schur functions, arise naturally in the study of P-partitions. Also, recent work of A. Postnikov shows they have a strong connection with a problem of considerable current interest: that of finding a combinatorial proof of the non-negativity of the 3-point Gromov-Witten invariants. After explaining these motivations, we study cylindric skew Schur functions from the point of view of Schur-positivity. Using a result of I. Gessel and C. Krattenthaler, we generalise a formula of A. Bertram, I. Ciocan-Fontanine and W. Fulton, thus giving an expansion of an arbitrary cylindric skew Schur function in terms of skew Schur functions. While we show that no non-trivial cylindric skew Schur functions are Schur-positive, we conjecture that this can be reconciled using the new concept of cylindric Schur-positivity.
description: 32 pages, 14 figures. Minor expository improvements. Version to appear in Advances in Mathematics
Irreducible projective representations of the symmetric group which remain irreducible in characteristic $2$
Creators: name: Fayers, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C30, 20C25, 05E10

description: For any finite group $G$ and any prime $p$ one can ask which ordinary irreducible representations remain irreducible in characteristic $p$. We answer this question for $p=2$ when $G$ is a proper double cover of the symmetric group. Our techniques involve constructing part of the decomposition matrix for a Rouquier block of a double cover, restricting to subgroups using the Brundan--Kleshchev modular branching rules and comparing the dimensions of irreducible representations via the bar-length formula.
Photoinduced Temperature Gradients in Sub-wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones
Creators: name: Cunha, Joao
name: Guo, Tian-Long
name: Koya, Alemayehu Nana
name: Toma, Andrea
name: Prato, Mirko
name: Della Valle, Giuseppe
name: Alabastri, Alessandro
name: Zaccaria, Remo Proietti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Plasmonic structures are renowned for their capability to efficiently convert light into heat at the nanoscale. However, despite the possibility to generate deep sub-wavelength electromagnetic hot spots, the formation of extremely localized thermal hot spots is an open challenge of research, simply because of the diffusive spread of heat along the whole metallic nanostructure. Here we tackle this challenge by exploiting single gold nanocones. We theoretically show how these structures can indeed realize extremely high temperature gradients within the metal, leading to deep sub-wavelength thermal hot spots, owing to their capability of concentrating light at the apex under resonant conditions even under continuous wave illumination. A three-dimensional Finite Element Method model is employed to study the electromagnetic field in the structure and subsequent thermoplasmonic behaviour, in terms of the three-dimensional temperature distribution. We show how the latter is affected by nanocone size, shape, and composition of the surrounding environment. Finally, we anticipate the use of photoinduced temperature gradients in nanocones for applications in optofluidics and thermoelectrics or for thermally induced nanofabrication.
Electrical Double Layer Capacitance of Curved Graphite Electrodes
Creators: name: Seebeck, Jannes
name: Schiffels, Peter
name: Schweizer, Sabine
name: Hill, Jörg-Rüdiger
name: Meißner, Robert Horst
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: To improve the understanding of the relation between electrode curvature and energy storage mechanisms, a systematic investigation of the correlation between convex and concave electrode surfaces and the differential capacitance of an electrochemical double layer capacitor using molecular dynamics simulations is presented. Each electrode consists of three layers of curved graphene sheets with a convex and concave surface to which the constant potential method was applied. The differential capacitance shows a fluctuating behavior with respect to the curvature radius of the convex and concave areas of the electrode. The reasons identified for this are differences in the geometric arrangement and solvation of the adsorbed ions as well as a steric hindrance prohibiting further charge accumulation. Because the total differential capacitance is calculated as a weighted average of contributions from concave and convex surfaces, the influence of individual curvatures on the total capacitance is significantly reduced for the total electrode surface.
description: To be published in the Journal of Physical Chemistry C
Microscopic origin of universality in Casimir forces
Creators: name: Buenzli, P. R.
name: Martin, Ph. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The microscopic mechanisms for universality of Casimir forces between macroscopic conductors are displayed in a model of classical charged fluids. The model consists of two slabs in empty space at distance $d$ containing classical charged particles in thermal equilibrium (plasma, electrolyte). A direct computation of the average force per unit surface yields, at large distance, the usual form of the Casimir force in the classical limit (up to a factor 2 due to the fact that the model does not incorporate the magnetic part of the force). Universality originates from perfect screening sum rules obeyed by the microscopic charge correlations in conductors. If one of the slabs is replaced by a macroscopic dielectric medium, the result of Lifshitz theory for the force is retrieved. The techniques used are Mayer expansions and integral equations for charged fluids.
description: 31 pages, 0 figures, submitted to Journal of Statistical Physics
A fractional PDE model for turbulent velocity fields near solid walls
Creators: name: Keith, Brendan
name: Khristenko, Ustim
name: Wohlmuth, Barbara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper presents a class of turbulence models written in terms of fractional partial differential equations (FPDEs) with stochastic loads. Every solution of these FPDE models is an incompressible velocity field and the distribution of solutions is Gaussian. Interaction of the turbulence with solid walls is incorporated through the enforcement of various boundary conditions. The various boundary conditions deliver extensive flexibility in the near-wall statistics that can be modelled. Reproduction of both fully-developed shear-free and uniform shear boundary layer turbulence are highlighted as two simple physical applications; the first of which is also directly validated with experimental data. The rendering of inhomogeneous synthetic turbulence inlet boundary conditions is an additional application, motivated by contemporary numerical wind tunnel simulations. Calibration of model parameters and efficient numerical methods are also conferred upon.
STAN HANDLU ŻYWNOŚCIĄ NA OBSZARACH WIEJSKICH W OPINII ICH MIESZKAŃCÓW NA PRZYKŁADZIE WYBRANYCH GMIN POWIATU KRAKOWSKIEGO
Creators: name: Matysik-Pejas, Renata
name: Żmija, Janusz
name: Matysik-Pejas, Renata
name: Żmija, Janusz
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: retail trade
subject: food trade
subject: rural areas

description: The main objective of the article is evaluation of selected elements of commercial infrastructure in the context of food purchasing conditions by the inhabitants of Cracow district communes (Zabierzów and Kocmyrzów-Luborzyca). The study allowed to determine the frequency of selection various forms of food trade in the place of respondents residence. Also was received a subjective assessment of the factors determining the choice of purchase place by respondents where the food products are bought. Respondents also expressed their general opinion about the access to trade infrastructure and about the level of supplies in food stores in their place of residence.
A Survey of Cellular Automata: Types, Dynamics, Non-uniformity and Applications
Creators: name: Bhattacharjee, Kamalika
name: Naskar, Nazma
name: Roy, Souvik
name: Das, Sukanta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Cellular automata (CAs) are dynamical systems which exhibit complex global behavior from simple local interaction and computation. Since the inception of cellular automaton (CA) by von Neumann in 1950s, it has attracted the attention of several researchers over various backgrounds and fields for modelling different physical, natural as well as real-life phenomena. Classically, CAs are uniform. However, non-uniformity has also been introduced in update pattern, lattice structure, neighborhood dependency and local rule. In this survey, we tour to the various types of CAs introduced till date, the different characterization tools, the global behaviors of CAs, like universality, reversibility, dynamics etc. Special attention is given to non-uniformity in CAs and especially to non-uniform elementary CAs, which have been very useful in solving several real-life problems.
description: 43 pages; Under review in Natural Computing
TERYTORIALNE ZRÓŻNICOWANIE PROBLEMÓW SPOŁECZNYCH W POLSCE
Creators: name: Mikuła, Aneta
name: Mikuła, Aneta
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: social problems
subject: poverty
subject: rural areas
subject: social security measures

description: The aim of this article is to show spatial disparities in the level of poverty and other selected social problems in Poland. The level of absolute, relative and statutory poverty by provinces and by localization was presented as well as differentiation of statutory poverty in urban, rural and urban-rural communes. The period of investigation covers the year 2012. In this paper, the data of the Central Statistical Office (CSO) Local Data Bank were used. Differentiation of the share of social security beneficiaries was analysed, mean, median and coefficient of variation was calculated. The share of gminas with a low, medium and high level of social problems was presented. It appeared that the scope of statutory poverty was larger in rural communities than in others. The analysis confirmed that in gminas with city (regardless its size) inhibitants were less affected by social problems than inhibitants of rural gminas.
Equivalence of domains arising from duality of orbits on flag manifolds III
Creators: name: Matsuki, Toshihiko
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M15, 22E15, 22E46, 32M05

description: In [GM1], we defined a G_R-K_C invariant subset C(S) of G_C for each K_C-orbit S on every flag manifold G_C/P and conjectured that the connected component C(S)_0 of the identity would be equal to the Akhiezer-Gindikin domain D if S is of nonholomorphic type. This conjecture was proved for closed S in [WZ2,WZ3,FH,M4] and for open S in [M4]. It was proved for the other orbits in [M5] when G_R is of non-Hermitian type. In this paper, we prove the conjecture for an arbitrary non-closed K_C-orbit when G_R is of Hermitian type. Thus the conjecture is completely solved affirmatively.
description: 15 pages
PORÓWNANIE PRZEMYSŁU CUKROWNICZEGO W POLSCE I W NIEMCZECH PO REFORMIE REGULACJI UNIJNEGO RYNKU CUKRU
Creators: name: Mucha, Marcin
name: Mucha, Marcin
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: sugar
subject: sugar market
subject: sugar industry
subject: reform
subject: European Union
subject: market regulation

description: In the European Union rules of functioning of the sugar market are covered by EU legislation, which forms common market organisation in the sugar sector. It assumes strong protectionism aiming at protection of UE farmers and companies, mainly against the competition from the world sugar producers of cane sugar. In 2006-2010, the EU conducted a reform of the sugar market aiming at elimination of production surpluses and improving competitiveness to prepare sugar sector to its liberalization. The article presents comparison of the current state of sugar industry in Poland and Germany after changes resulting from the reform.
Rank-two vector bundles on non-minimal ruled surfaces
Creators: name: Aprodu, Marian
name: Costa, Laura
name: Miro-Roig, Rosa Maria
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We continue previous works by various authors and study the birational geometry of moduli spaces of stable rank-two vector bundles on surfaces with Kodaira dimension $-\infty$. To this end, we express vector bundles as natural extensions, by using two numerical invariants associated to vector bundles, similar to the invariants defined by Brinzanescu and Stoia in the case of minimal surfaces. We compute explicitly these natural extensions on blowups of general points on a minimal surface. In the case of rational surfaces, we prove that any irreducible component of a moduli space is either rational or stably rational.
description: to appear in Tran. A.M.S