cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Parole In The Penal System: Towards A Relational Theory Of Penality
Creators: name: McAra, Lesley
Publisher: name: The Open University
Year: 2001

description: This thesis aims to develop a theoretical model which explains how the penal realm functions qua system. A second aim is to use this model to challenge a number of contemporary theories of penal transformation (as advanced in the works of Malcolm Feeley and Jonathan Simon, David Garland and Tony Bottoms). Using empirical evidence from the Scottish Parole System, the argument is developed over the course of three case studies, each of which explores a different dimension of systemic functioning: the development of penal policy, the implementation of penal policy; and the decision-making practices of agents working within the system. The findings from the case studies suggest that the penal system functions in a manner akin to an eco-system in which there is a high level of interdependency and struggles for power and control between key sites in the system. The relative balance of power between these sites is determined by both extra and intra-systemic processes. The nature of these processes, in turn, indicates that penal transformation is more contingent and nuanced than contemporary theories would suggest. Transformation is most likely to occur under conditions of extra or intra-systemic strain; where tensions between the cultural practices of the system and the physical and conceptual space within which it is located, become too great to be sustained.
Block cave mine infrastructure reliability applied to production planning
Creators: name: Rubio, Enrique
Publisher: name: University of British Columbia
Year: 2010

description: The production promise of a mine should reflect the fundamental models that sustain the mining system. Commonly this promise is formalized by the production schedule of a mine which is a bankable document that supports the decision of whether or not to pursue (or continue to pursue) the mining venture. Currently there are several computer based applications that enable mining engineers to compute a production schedule for a block cave operation. However, several operational upsets such as hang ups, oversize material, wet muck and rock instability affect the availability of mining infrastructure jeopardizing the original production estimates. These upsets can be related to geotechnical properties and caving processes in the rock mass. The current schedulers do not incorporate or account for geotechnical properties and caving processes. Thus, they often overestimate the production capacity of the mine. In this dissertation, a methodology has been devised for using observations of the failure frequency of mining infrastructure such as draw points, production drifts and ore passes to assess the reliability of this infrastructure to sustain a given production schedule. The novel aspect of measuring draw point reliability in this way is that it effectively subsumes complex geotechnical phenomena that lead to draw point failure such as geological conditions, stress concentration, or coarse fragmentation. The research found that the rate of occurrence of failure of a draw point can be characterized by a "bathtub curve" whose shape changes with the geotechnical characteristics of the rock mass, mining system and stress regime. The final phase of the research integrated the estimated mining infrastructure reliability into production scheduling through a reliability model. This integrated model provided the ability to generate from a number of draw points, a production plan in which a subset of the draw points will yield the requested tonnage with an associated degree of reliability based on the reliability of individual components of the mining infrastructure. Validation of the reliability model demonstrated that it does reproduce the tonnage distribution curve and consequently estimates the technical uncertainty of a production schedule related to mining infrastructure availability.
Polski handel zagraniczny roślinami ozdobnymi w latach 1996-2009
Creators: name: Jabłońska, Lilianna
name: Olewnicki, Dawid
name: Kowalczyk, Aleksandra
name: Jabłońska, Lilianna
name: Olewnicki, Dawid
name: Kowalczyk, Aleksandra
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: International Relations/Trade
subject: imports
subject: exports
subject: ornamental plants
subject: / import
subject: eksport
subject: rośliny ozdobne

description: A long term analysis of foreign trade in ornamental plants over the years 1996-2009 have been done in order to show the influence of Polish accession to the EU on Polish imports and exports. The direction and dynamics of changes, the structure of assortment, the trade balance, as well as changes in import and export prices have been analyzed. It has been found that Polish foreign trade in floricultural products was characterized by a negative trade balance, a faster growth in imports than in exports and a higher level of import prices. However, a positive trade balance has been observed in nursery plants and treated cut flowers as well as foliage. The Polish accession to the EU had no significant effect on imports and exports of ornamental plants in the next years. / Synopsis. W celu oceny wpływu integracji z UE na polski handel zagraniczny roślinami ozdobnymi przeprowadzono analizę zmian w ich eksporcie i imporcie w wieloleciu 1996-2009, w którym wyodrębniono dodatkowo dwa podokresy: przed i po integracji z UE. Analizowano kierunek i dynamikę zmian, strukturę asortymentową, saldo obrotów oraz zmiany i relacje cen importowych i eksportowych. Badania wykazały, iż polski handel zagraniczny produktami kwiaciarskimi charakteryzuje ujemne saldo obrotów, szybszy wzrost importu niż eksportu oraz wyższy poziom cen importowych. Dodatnie saldo obrotów występuje w handlu roślinami szkółkarskimi oraz preparowanymi kwiatami ciętymi i zielenią ciętą. Przystąpienie Polski do UE nie miało istotnego wpływu na import i eksport w następnych latach.
Lattice-Matched Multiple Channel AlScN/GaN Heterostructures
Creators: name: Nguyen, Thai-Son
name: Pieczulewsi, Naomi
name: Savant, Chandrashekhar
name: Cooper, Joshua J. P.
name: Casamento, Joseph
name: Goldman, Rachel S.
name: Muller, David A.
name: Xing, Huili G.
name: Jena, Debdeep
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: AlScN is a new wide bandgap, high-k, ferroelectric material for RF, memory, and power applications. Successful integration of high quality AlScN with GaN in epitaxial layer stacks depends strongly on the ability to control lattice parameters and surface or interface through growth. This study investigates the molecular beam epitaxy growth and transport properties of AlScN/GaN multilayer heterostructures. Single layer Al$_{1-x}$Sc$_x$N/GaN heterostructures exhibited lattice-matched composition within $x$ = 0.09 -- 0.11 using substrate (thermocouple) growth temperatures between 330 $ ^\circ$C and 630 $ ^\circ$C. By targeting the lattice-matched Sc composition, pseudomorphic AlScN/GaN multilayer structures with ten and twenty periods were achieved, exhibiting excellent structural and interface properties as confirmed by X-ray diffraction (XRD) and scanning transmission electron microscopy (STEM). These multilayer heterostructures exhibited substantial polarization-induced net mobile charge densities of up to 8.24 $\times$ 10$^{14}$/cm$^2$ for twenty channels. The sheet density scales with the number of AlScN/GaN periods. By identifying lattice-matched growth condition and using it to generate multiple conductive channels, this work enhances our understanding of the AlScN/GaN material platform.
Phase Bifurcation and Quantum Fluctuations in Sr3Ru2O7
Creators: name: Green, A. G.
name: Grigera, S. A.
name: Borzi, R. A.
name: Mackenzie, A. P.
name: Perry, R. S.
name: Simons, B. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The bilayer ruthenate Sr_3Ru_2O_7 has been cited as a textbook example of itinerant metamagnetic quantum criticality. However, recent studies of the ultra-pure system have revealed striking anomalies in magnetism and transport in the vicinity of the quantum critical point. Drawing on new experimental data, we propose that the anomalous phase behavior can be accommodated by a mechanism which relies on the effects of strong magnetoelastic coupling. We argue that the phenomenological theory identified here is more generic and raises the possibility of quantum tricritical behaviour.
description: 5pages, 4 figures. Text revised for clarity and some more experimental data included
Development of a position sensing system for a robotic guided drill
Creators: name: Wilkinson, Nicholas Jay
Publisher: name: University of British Columbia
Year: 2010

description: This work details an investigation into possible methods for tracking the underground movement of a robotic, guided drill intended for minimizing borehole deviation in long-hole drilling applications. The work begins with a general overview of the operational constraints, followed by an in-depth exploration of several potential position sensing solutions. After a discussion concerning the benefits and disadvantages of the most interesting concepts, a MEMS gyroscope-based method for detecting the drill end effector tilt rate is chosen as the most technically feasible solution. A test apparatus is conceived and constructed to provide an initial, proof-of-concept evaluation of this approach. Experiments are conducted to determine the general performance characteristics of the gyroscope, and its suitability for the intended application. While the test results cannot be extrapolated to form a framework for establishing expected real-world drill performance, the low-cost gyroscope-based method is demonstrated to exhibit significant promise, and is proven worthy of continued attention and development.
Zmiany w handlu zagranicznym owocami i warzywami w Polsce w latach 2001-2010
Creators: name: Jąder, Karolina
name: Jąder, Karolina
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: exports
subject: imports
subject: fruit
subject: fruit preserves
subject: vegetables
subject: vegetable preserves
subject: / eksport
subject: import
subject: owoce
subject: przetwory owocowe
subject: warzywa
subject: przetwory warzywne

description: Aim of the study was to present changes in the Polish foreign trade in fruit, vegetables and their preserves in 2001-2010. The analysis was based on secondary data from the Analytical Centre of Customs Administration (CAAC) and the Ministry of Finance. Values of exports and imports as well as balances of foreign trade were calculated. The structure of exports and imports by kind and also their geographical origin and destination was presented. It was found that the value of exports and imports of fruit, vegetables and their preserves increased significantly in 2001-2010, which was mainly due to the Polish accession to the European Union. This accession did not produce significant and substantial changes in the structure of exports and imports, but significant changes in the geographical structure of both exports and imports of fruit and vegetables took place after 2004. / Synopsis. Celem opracowania było przedstawienie zmian w polskim handlu zagranicznym owocami i warzywami oraz ich przetworami w latach 2001-2010. Analizę oparto na danych wtórnych pochodzących z Centrum Analitycznego Administracji Celnej (CAAC) oraz Ministerstwa Finansów, a zamieszczonych w publikacjach "Rynek owoców i warzyw" Instytutu Ekonomiki Rolnictwa i Gospodarki Żywnościowej w Warszawie. Przy użyciu metod statystyki opisowej, takich jak średnia arytmetyczna oraz wskaźniki struktury, zbadano zmiany wartości eksportu i importu oraz obliczono saldo handlu zagranicznego. Przedstawiono również wartościową strukturę eksportu oraz importu, a także ich strukturę geograficzną. Stwierdzono, iż w latach 2001-2010 zwiększyła się znacząco wartość eksportu i importu owoców i warzyw oraz ich przetworów, na co wpływ miała głównie akcesja Polski do Unii Europejskiej. Przystąpienie Polski do Unii nie wpłynęło znacząco na zmiany w strukturze rzeczowej eksportu i importu, natomiast po roku 2004 nastąpiły istotne przeobrażenia w strukturze geograficznej, zarówno eksportu jak i importu owoców i warzyw. Największe znaczenie przez całe dziesięciolecie miały tu kraje UE-15, jednak w przypadku owoców i ich przetworów udział tych państw po akcesji wyraźnie zmalał, natomiast w przypadku produktów warzywnictwa, szczególnie w strukturze importu, zwiększył się.
Coronene: a model for ultrafast dynamics in graphene nanoflakes and PAHs
Creators: name: Daría, Alberto Martín Santa
name: González-Sánchez, Lola
name: Gómez, Sandra
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Assuming a delta pulse excitation, quantum wavepackets are propagated on the excited state manifold in the energy range from 3.4-5.0 eV for coronene and 2.4-3.5 eV for circumcoronene to study the time evolution of the states as well as their lifetimes. The full-dimensional (102 and 210 degrees of freedom for coronene and circumcoronene respectively) non-adiabatic dynamics simulated with the ML-MCTDH method on twelve coupled singlet electronic states show that the different absorption spectra are only due to electronic delocalisation effects that change the excited state energies, but the structural dynamics in both compounds are identical. Breathing and tilting motions drive the decay dynamics of the electronic states away from the Frank-Condon region independently of the size of the aromatic system. This promising result allows the use of coronene as a model system for the dynamics of larger polycyclic aromatic hydrocarbons (PAHs) and graphene one dimensional sheets or nanoflakes.
Społeczne uwarunkowania rozwoju polskich obszarów wiejskich
Creators: name: Kozera, Magdalena
name: Kozera, Magdalena
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Research and Development/Tech Change/Emerging Technologies
subject: rural areas
subject: cultural heritage
subject: social determinants of rural development
subject: / obszary wiejskie
subject: dziedzictwo kulturowe
subject: czynniki społeczne zmian obszarów wiejskich

description: The role of endogenous factors of rural areas development has been discussed. The concept of cultural heritage, especially its spiritual and material character, has been referred to. The startup role of regions’ social capital and its use in the transition process has been underlined. The need of using a holistic approach for analyses of social determinants of rural development has also been indicated. / Synopsis. W artykule podjęto dyskusję nad rolą endogennych czynników rozwoju obszarów wiejskich. Nawiązano do koncepcji dziedzictwa kulturowego w jego wymiarze duchowymi materialnym. Podkreślono rolę uruchomienia kapitału społecznego regonów i wykorzystania go w procesie przemian. Wskazano również na potrzebę holistycznego podejścia do analiz uwarunkowań społecznych przemian na obszarach wiejskich.
XMM-Newton spectroscopy of an X-ray selected sample of RL AGNs
Creators: name: Galbiati, E.
name: Caccianiga, A.
name: Maccacaro, T.
name: Braito, V.
name: Della Ceca, R.
name: Severgnini, P.
name: Brunner, H.
name: Lehmann, I.
name: Page, M. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents the X-ray spectroscopy of an X-ray selected sample of 25 radio-loud (RL) AGNs extracted from the XBSS sample. The main goal is to study the origin of the X-ray spectral differences usually observed between radio-loud and radio-quiet (RQ) AGNs. To this end, a comparison sample of 53 RQ AGNs has been also extracted from the same XBSS sample and studied together with the sample of RL AGNs. We have focused the analysis on the distribution of the X-ray spectral indices of the power-law component that models the large majority of the spectra in both samples. We find that the mean X-ray energy spectral index is very similar in the 2 samples and close to alpha_X~1. However, the intrinsic distribution of the spectral indices is significantly broader in the sample of RL AGNs. In order to investigate the origin of this difference, we have divided the RL AGNs into blazars and ``non-blazars'', on the basis of the available optical and radio information. We find strong evidence that the broad distribution observed in the RL AGN sample is mainly due to the presence of the blazars. Furthermore, within the blazar class we have found a link between the X-ray spectral index and the value of the radio-to-X-ray spectral index suggesting that the observed X-ray emission is directly connected to the emission of the relativistic jet. This trend is not observed among the ``non-blazars'' RL AGNs. This favours the hypothesis that, in these latter sources, the X-ray emission is not significantly influenced by the jet emission and it has probably an origin similar to the RQ AGNs. Overall, the results presented here indicate that the observed distribution of the X-ray spectral indices in a given sample of RL AGNs is strongly dependent on the amount of relativistic beaming present in the selected sources.
description: 18 pages, 10 figures, accepted for publication in A&A
Stan i perspektywy rozwoju rolnictwa ekologicznego w Polsce
Creators: name: Nowogródzka, Teresa
name: Nowogródzka, Teresa
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: organic food
subject: organic farming
subject: organic market
subject: ecoconsumer
subject: / żywność ekologiczna
subject: rolnictwo ekologiczne
subject: rynek produktów ekologicznych
subject: ekokonsument

description: This paper highlights the current status of organic farming in Poland, and identifies problems faced by organic food producers. The article presents the distribution of organic farms by acreage in Poland, pointing to their fragmentation and unused labour resources. Attention was also given to the growing demand for organic food products and a mismatch between the food supply and that demand. A need of introducing some changes into the Polish organic agriculture, referring to the selected European countries is also pointed to. / Synopsis. W opracowaniu zwrócono uwagę na aktualny stan rolnictwa ekologicznego w Polsce, wskazano problemy, z jakimi borykają się producenci żywności ekologicznej. Przedstawiono strukturę wielkości gospodarstw ekologicznych w Polsce, wskazując na znaczne ich rozdrobnienie. Zwrócono uwagę na wzrastający popyt na żywnościowe produkty ekologiczne oraz niedostosowanie podaży do popytu. Wskazano także na konieczność wprowadzenia zmian w polskim rolnictwie ekologicznym, nawiązując do rolnictwa wybranych krajów europejskich.
A geometric approach to the equilibrium shapes of self-gravitating fluids
Creators: name: Peralta-Salas, Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The classification of the possible equilibrium shapes that a self-gravitating fluid can take in a Riemannian manifold is a classical problem in mathematical physics. In this paper it is proved that the equilibrium shapes are isoparametric submanifolds. Some geometric properties of the equilibrium shapes are also obtained, specifically the relationship with the isoperimetric problem and the group of isometries of the manifold. This work follows the new geometric approach to the problem developed by the author (see math-ph/0305038)
description: 17 pages
Non-ballistic transport characteristics of superconducting point-contacts
Creators: name: Kumar, Ritesh
name: Sheet, Goutam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the "ballistic" regime, the transport across a normal metal (N)/superconductor (S) point-contact is dominated by a quantum process called Andreev reflection. Andreev reflection causes an enhancement of the conductance below the superconducting energy gap, and the ratio of the low-bias and the high-bias conductance cannot be greater than 2 when the superconductor is conventional in nature. In this regime, the features associated with Andreev reflection also provide energy and momentum-resolved spectroscopic information about the superconducting phase. Here we theoretically consider various types of N/S point contacts, away from the ballistic regime, and show that even when the superconductor under investigation is simple conventional in nature, depending on the shape, size and anatomy of the point contacts, a wide variety of spectral features may appear in the conductance spectra. Such features may misleadingly mimic theoretically expected signatures of exotic physical phenomena like Klein tunneling in topological superconductors, Andreev bound states in unconventional superconductors, multiband superconductivity and Majorana zero modes.
description: We make some changes in our manuscript, after receiving feedback from several researchers in the community
Experimental study of the $^{11}\text{B}(p,3α)γ$ reaction at $E_p = 0.5-2.7$ MeV
Creators: name: Kirsebom, Oliver S.
name: Howard, Alan M.
name: Munch, Michael
name: Sablok, Sanchit
name: Swartz, Jacobus A.
name: Fynbo, Hans O. U.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Our understanding of the low-lying resonance structure in $^{12}$C remains incomplete. We have used the $^{11}\text{B}(p,3α)γ$ reaction at proton energies of $E_p=0.5-2.7$ MeV as a selective probe of the excitation region above the $3α$ threshold in $^{12}$C. Transitions to individual levels in $^{12}$C were identified by measuring the 3$α$ final state with a compact array of charged-particle detectors. Previously identified transitions to narrow levels were confirmed and new transitions to broader levels were observed for the first time. Here, we report cross sections, deduce partial $γ$-decay widths and discuss the relative importance of direct and resonant capture mechanisms.
description: 9 pages, 7 figures, 5 tables; added details on data analysis
A level coupled to a 1D interacting reservoir : A DMRG study
Creators: name: Sade, M.
name: Weiss, Y.
name: Goldstein, M.
name: Berkovits, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The influence of interactions in a reservoir coupled to a level on the width of the filling as a function of the chemical potential and the position of the level is studied. The density matrix renormalization group (DMRG) method is used to calculate the ground state of a finite-size interacting reservoir, linked to a single state dot. The influence of the interactions in the lead as well as dot-lead interactions is considered. It is found that interactions in the reservoir result in a decrease in the resonance width, while the dot-lead interaction has an opposite effect. These effects are explained within the random phase approximation as an effective change in the inverse compressibility of the reservoir, while the dot-lead interactions renormalize the position of the level.
description: 4 pages, 4 figures
Electrochemical oxidation of CO on Cu single crystals under alkaline conditions
Creators: name: Tiwari, Aarti
name: Heenen, Hendrik H.
name: Bjørnlund, Anton Simon
name: Hochfilzer, Degenhart
name: Chan, Karen
name: Horch, Sebastian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We perform a joint experimental-theoretical study of the electrochemical oxidation of CO on copper (Cu) under alkaline conditions. Using cyclic voltammetry on Cu single crystal surfaces, we demonstrate that both Cu terraces and steps show CO oxidation activity at potentials just slightly positive (0.03-0.14 V) of the thermodynamic equilibrium potential. The overpotentials are 0.23-0.12 V lower than that of gold (approx. 0.26 V), which up until now has been considered to be the most active catalyst for this process. Our theoretical calculations suggest that Cu's activity arises from the advantageous combination of simultaneous *OH adsorption under CO oxidation potentials and surmountable *CO-*OH coupling barriers. Experimentally observed onset potentials are in agreement with the computed onsets of *OH adsorption. We furthermore show that the onsets of *OH adsorption on steps are more affected by *CO-*OH interactions than on terraces due to a stronger competitive adsorption. Overall, Cu(100) shows the lowest overpotential (0.03 V) of the facets considered.
description: 16 pages, 3 figures plus supplementary information
Zależności między WTO i Unią Europejską w polityce rolnej w warunkach globalizacji
Creators: name: Puślecki, Zdzisław W.
name: Puślecki, Zdzisław W.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: International Development
subject: International Relations/Trade
subject: WTO
subject: European Union
subject: interdependences
subject: agricultural policy
subject: globalisation
subject: new directions of activity
subject: / Unia Europejska
subject: zależności
subject: polityka rolna
subject: globalizacja
subject: nowe kierunki działania

description: The main aim of the article was a presentation of interdependences in the agricultural policy between the WTO and the European Union in the conditions of globalisation. A specific objective was to highlight the rules of international agricultural trade and the new directions of WTO activities, the volatility of agricultural commodity prices in the world market and the endeavours to weaken it made outside the WTO as well as the new developments in the Common Agricultural Policy (CAP) resulting from the Doha round. In the future, as a result of necessary reforms, the WTO should continue to stimulate the liberalisation of international trade and also, more than in the past, to support the development of developing countries. / Synopsis. Celem głównym opracowania było przedstawienie zależności między WTO i Unią Europejską w polityce rolnej w warunkach globalizacji. Celami szczegółowymi natomiast było ukazanie reguł międzynarodowego handlu rolnego i potrzeby nowych kierunków działania WTO, niestabilności cen na artykuły rolne na rynku światowym i prób jej osłabiania poza WTO oraz nowych zjawisk we Wspólnej Polityce Rolnej wynikających z rundy Doha. W przyszłości, w wyniku niezbędnych reform, WTO powinna nadal stymulować liberalizację handlu międzynarodowego, a także, bardziej niż dotychczas, wspierać rozwój krajów rozwijających się.
Pivot Selection for Median String Problem
Creators: name: Mirabal, Pedro
name: Abreu, José
name: Pedreira, Oscar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The Median String Problem is W[1]-Hard under the Levenshtein distance, thus, approximation heuristics are used. Perturbation-based heuristics have been proved to be very competitive as regards the ratio approximation accuracy/convergence speed. However, the computational burden increase with the size of the set. In this paper, we explore the idea of reducing the size of the problem by selecting a subset of representative elements, i.e. pivots, that are used to compute the approximate median instead of the whole set. We aim to reduce the computation time through a reduction of the problem size while achieving similar approximation accuracy. We explain how we find those pivots and how to compute the median string from them. Results on commonly used test data suggest that our approach can reduce the computational requirements (measured in computed edit distances) by $8$\% with approximation accuracy as good as the state of the art heuristic. This work has been supported in part by CONICYT-PCHA/Doctorado Nacional/$2014-63140074$ through a Ph.D. Scholarship; Universidad Católica de la Santísima Concepción through the research project DIN-01/2016; European Union's Horizon 2020 under the Marie Skłodowska-Curie grant agreement $690941$; Millennium Institute for Foundational Research on Data (IMFD); FONDECYT-CONICYT grant number $1170497$; and for O. Pedreira, Xunta de Galicia/FEDER-UE refs. CSI ED431G/01 and GRC: ED431C 2017/58.
Most super-Earths formed by dry pebble accretion are less massive than 5 Earth masses
Creators: name: Venturini, Julia
name: Guilera, Octavio M.
name: Ronco, M. Paula
name: Mordasini, Christoph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study the formation of rocky planets by dry pebble accretion from self-consistent dust-growth models. In particular, we aim at computing the maximum core mass of a rocky planet that can sustain a thin H-He atmosphere to account for the second peak of the Kepler's size distribution. We simulate planetary growth by pebble accretion inside the ice line. The pebble flux is computed self-consistently from dust growth by solving the advection-diffusion equation for a representative dust size. Dust coagulation, drift, fragmentation and sublimation at the water iceline are included. The disc evolution is computed for $α$-discs with photoevaporation from the central star. The planets grow from a moon-mass embryo by silicate pebble accretion and gas accretion. We analyse the effect of a different initial disc mass, $α$-viscosity, disc metallicity and embryo location. Finally, we compute atmospheric mass-loss due to evaporation. We find that inside the ice line, the fragmentation barrier determines the size of pebbles, which leads to different planetary growth patterns for different disc viscosities. Within the iceline the pebble isolation mass typically decays to values below 5 M$_{\oplus}$ within the first million years of disc evolution, limiting the core masses to that value. After computing atmospheric-mass loss, we find that planets with cores below $\sim$4 M$_{\oplus}$ get their atmospheres completely stripped, and a few 4-5 M$_{\oplus}$ cores retain a thin atmosphere that places them in the gap/second peak of the Kepler size distribution. Overall, we find that rocky planets form only in low-viscosity discs ($α\lesssim 10^{-4}$). When $α\geq 10^{-3}$, rocky objects do not grow beyond Mars-mass. The most typical outcome of dry pebble accretion is terrestrial planets with masses spanning from Mars to $\sim$4 M$_{\oplus}$.
description: Accepted for publication in A&A
Additional file 1 of Interventions to support people exposed to adverse childhood experiences: systematic review of systematic reviews
Creators: name: Lorenc, Theo
name: Lester, Sarah
name: Sutcliffe, Katy
name: Stansfield, Claire
name: Thomas, James
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.Appendix A. Example search strategy. Appendix B. Quality assessment tool. Appendix C. Results of quality assessment. Appendix D. Quality assessment tools used in included reviews.
Associativity certificates for Kontsevich's star-product $\star$ mod $\bar{o}(\hbar^k)$: $k\leqslant 6$ unlike $k\geqslant7$
Creators: name: Buring, Ricardo
name: Kiselev, Arthemy V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 05C22, 53D55, 68R10, 16Z05, 53D17, 81R60, 81Q30

description: The formula $\star$ mod $\bar{o}(\hbar^k)$ of Kontsevich's star-product with harmonic propagators was known in full at $\hbar^{k\leqslant 6}$ since 2018 for generic Poisson brackets, and since 2022 also at $k=7$ for affine brackets. We discover that the mechanism of associativity for the star-product up to $\bar{o}(\hbar^6)$ is different from the mechanism at order $7$ for both the full star-product and the affine star-product. Namely, at lower orders the needed consequences of the Jacobi identity are immediately obtained from the associator mod $\bar{o}(\hbar^6)$, whereas at order $\hbar^7$ and higher, some of the necessary differential consequences are reached from the Kontsevich graphs in the associator in strictly more than one step.
description: Expanded extract from arXiv:2209.14438 [q-alg]; Proc. international symposium on Quantum Theory and Symmetries (QTS12) on 24-28 July 2023 in CVUT Prague, Czech Republic; 8 pages + Appendices (7pp.), 2 tables, 1 figure
Additional file 1 of Individualized treatment for acute Achilles tendon rupture based on the Copenhagen Achilles Rupture Treatment Algorithm (CARTA): a study protocol for a multicenter randomized controlled trial
Creators: name: Hansen, Maria Swennergren
name: Vestermark, Marianne Toft
name: Hölmich, Per
name: Kristensen, Morten Tange
name: Barfod, Kristoffer Weisskirchner
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 1. SPIRIT 2013 Checklist for the ReTrain pilot RCT: Recommended items to address in a clinical trial protocol and related documents.
การศึกษาแนวโน้มความต้องการเปิดหลักสูตรวิทยาศาสตรบัณฑิต (วท.บ.) สาขาเทคโนโลยีสถาปัตยกรรมและการก่อสร้าง คณะเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยนครพนม
Creators: name: วัชราภรณ์ เครือพันธ์
Publisher: name: ์Nakhon Phanom University
Year: 2021
Subjects: Trends of demand
Bachelor of Science
Architectural Technology and Construction
Design

description: Journal of Engineering Technology Access, 1, 2, 20-34
The Nature of the Radius Valley: Hints from Formation and Evolution Models
Creators: name: Venturini, Julia
name: Guilera, Octavio M.
name: Haldemann, Jonas
name: Ronco, M. Paula
name: Mordasini, Christoph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The existence of a Radius Valley in the Kepler size distribution stands as one of the most important observational constraints to understand the origin and composition of exoplanets with radii between that of Earth and Neptune. The goal of this work is to provide insights into the existence of the Radius Valley from, first, a pure formation point of view, and second, a combined formation-evolution model. We run global planet formation simulations including the evolution of dust by coagulation, drift and fragmentation; and the evolution of the gaseous disc by viscous accretion and photoevaporation. A planet grows from a moon-mass embryo by either silicate or icy pebble accretion, depending on its position with respect to the water ice line. We account for gas accretion and type-I/II migration. We perform an extensive parameter study evaluating a wide range in disc properties and embryo's initial location. We account for photoevaporation driven mass-loss after formation. We find that due to the change in dust properties at the water ice line, rocky cores form typically with $\sim$3 M$_{\oplus}$ and have a maximum mass of $\sim$5 M$_{\oplus}$, while icy cores peak at $\sim$10 $M_{\oplus}$, with masses lower than 5 M$_{\oplus}$ being scarce. When neglecting the gaseous envelope, rocky and icy cores account naturally for the two peaks of the Kepler size distribution. The presence of massive envelopes for cores more massive than $\sim$10 M$_{\oplus}$ inflates the radii of those planets above 4 R$_{\oplus}$. While the first peak of the Kepler size distribution is undoubtedly populated by bare rocky cores, the second peak can host water-rich planets with thin H-He atmospheres. Some envelope-loss mechanism should operate efficiently at short orbital periods to explain the presence of $\sim$10-40 M$_{\oplus}$ planets falling in the second peak of the size distribution.
description: Accepted for publication in A&A Letters
Tendencje w produkcji i handlu zagranicznym wieprzowiną w Polsce w latach 1990-2011
Creators: name: Stańko, Stanisław
name: Stańko, Stanisław
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: Livestock Production/Industries
subject: Production Economics
subject: pig meat
subject: production
subject: foreign trade
subject: tendency
subject: / wieprzowina
subject: produkcja
subject: handel zagraniczny
subject: tendencje

description: An analysis, based on empirical data for the period of 1990-2011, presents changes in production, consumption and foreign trade in pig meat and its products. Since 2008 Poland has been a net importer of pig meat and its products. / Synopsis. W artykule przedstawiono zmiany w produkcji, konsumpcji i handlu zagranicznym wieprzowiną w Polsce w latach 1990-2011. Polska od 2008 r. jest importerem netto wieprzowiny i ujemne saldo obrotów handlowych się powiększa.
Kryzys finansowy a rentowność polskiego przemysłu spożywczego
Creators: name: Stefko, Olga
name: Stefko, Olga
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Industrial Organization
subject: Production Economics
subject: financial crisis
subject: food processing industry
subject: / kryzys finansowy
subject: przemysł spożywczy

description: The problem of evaluation of Polish food processing industry in the light of general economic tendencies in period 2006-2010 was undertaken in the article. The main part presents an assessment of the financial crisis impact in the analyzed period. The findings are based on an analysis of changes in selected profitability indicators. The thesis that the sector is comparatively resistant to the economic crisis in the world has been discussed. / Synopsis. W artykule podjęto problem oceny sytuacji polskiego przemysłu spożywczego na tle tendencji ogólnoekonomicznych w okresie 2006-2010. Dokonano oceny oddziaływania kryzysu finansowego w badanym okresie na sytuację sektora na podstawie zmian wybranych wskaźników rentowności. Podjęto dyskusję z tezą, że sektor ten jest względnie odporny na zjawiska kryzysowe występujące w świecie.
Super-Carrollian and Super-Galilean Field Theories
Creators: name: Koutrolikos, Konstantinos
name: Najafizadeh, Mojtaba
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The exploration of scalar field theories that exhibit Carroll and Galilei symmetries has attracted a lot of attention. In this paper, we generalize these studies to fermionic field theories and construct consistent electric and magnetic descriptions of Carrollian and Galilean spin $\tfrac{1}{2}$ fermions. We showcase various methods that offer complementary perspectives into the limiting process of the underlying relativistic theories. Moreover, we extend our study to $\mathcal{N}=1$ off-shell supersymmetric field theories in four dimensions. By introducing suitable Grassmann-analyticity conditions, we formulate the corresponding super-Carrollian and super-Galilean theories. These theories combine the established Carroll/Galilei scalars with the Carroll/Galilei fermions and a range of auxiliary fields into supermultiplets.
Ward Identities and High-energy Scattering Amplitudes in String Theory
Creators: name: Chan, Chuan-Tsung
name: Ho, Pei-Ming
name: Lee, Jen-Chi
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: High-energy limit of stringy Ward identities derived from the decoupling of two types of zero-norm states in the old covariant first quantized (OCFQ) spectrum of open bosonic string are used to check the consistency of saddle point calculations of high energy scattering amplitudes of Gross and Mende and Gross and Manes. Some inconsistencies of their saddle point calculations are found even for the string-tree scattering amplitudes of the excited string states. We discuss and calculate the missing terms of the calculation by those authors to recover the stringy Ward identities. In addition, based on the tree-level stringy Ward identities, we give the proof of a general formula, which was proposed previously, of all high energy four-point string-tree amplitudes of arbitrary particles in the string spectrum. In this formula all such scattering amplitudes are expressed in terms of those of tachyons as conjectured by Gross. The formula is extremely simple which manifestly demonstrates the universal high energy behavior of the interactions among all string states.
description: 1 typo, to appear in Nucl. Phys.B
Observation of adiabatic and non-adiabatic behavior for CPMG sequence in time-dependent magnetic fields
Creators: name: Hürlimann, Martin D.
name: Utsuzawa, Shin
name: Hou, Chang-Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate experimentally the effect of time dependent magnetic fields on the spin dynamics of the Carr - Purcell - Meiboom - Gill (CPMG) sequence. Over a wide range of offset fields and ramp rates, the measured response is fully consistent with adiabatic behavior. The echo amplitudes exhibit characteristic modulations that are in excellent agreement with theoretical predictions. Non-adiabatic events are observed at distinct offsets. Abruptly after passing through these offsets, the experimental results deviate from the theoretical adiabatic expressions. These non-adiabatic events occur precisely at the field offsets predicted by theory. It is demonstrated that in the adiabatic regime the effects of field fluctuations are fully reversible, while the occurrence of non-adiabatic events leads to hysteresis. The adiabatic range of field offsets can be increased by modifying the refocusing pulses within the CPMG sequence.
description: 29 pages, 7 figures
A 5-Point Minimal Solver for Event Camera Relative Motion Estimation
Creators: name: Gao, Ling
name: Su, Hang
name: Gehrig, Daniel
name: Cannici, Marco
name: Scaramuzza, Davide
name: Kneip, Laurent
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Event-based cameras are ideal for line-based motion estimation, since they predominantly respond to edges in the scene. However, accurately determining the camera displacement based on events continues to be an open problem. This is because line feature extraction and dynamics estimation are tightly coupled when using event cameras, and no precise model is currently available for describing the complex structures generated by lines in the space-time volume of events. We solve this problem by deriving the correct non-linear parametrization of such manifolds, which we term eventails, and demonstrate its application to event-based linear motion estimation, with known rotation from an Inertial Measurement Unit. Using this parametrization, we introduce a novel minimal 5-point solver that jointly estimates line parameters and linear camera velocity projections, which can be fused into a single, averaged linear velocity when considering multiple lines. We demonstrate on both synthetic and real data that our solver generates more stable relative motion estimates than other methods while capturing more inliers than clustering based on spatio-temporal planes. In particular, our method consistently achieves a 100% success rate in estimating linear velocity where existing closed-form solvers only achieve between 23% and 70%. The proposed eventails contribute to a better understanding of spatio-temporal event-generated geometries and we thus believe it will become a core building block of future event-based motion estimation algorithms.
Ultrafine grinding for improved mineral liberation in flotation concentrates
Creators: name: Parry, Jennifer Marie
Publisher: name: University of British Columbia
Year: 2010

description: As the minerals industry is required to process increasingly complex, finely-grained ores, stirred mills are replacing ball mills for regrind applications in flotation circuits. Stirred mills are able to produce fine grind sizes in an energy efficient manner and without additional size classification. Laboratory grinding trials were conducted using two highspeed stirred mills; one vertical and one horizontal, to treat three lead-zinc concentrator flotation streams which are currently reground using tower mills. The effect of stirred milling, in particular mill type, stress intensity and grind size, on downstream processing was investigated in terms of energy requirements, particle size distributions, mineral liberation and mineral breakage rates. It was shown that the breakage rates of hard and soft minerals converge at high stress intensities. The high stress intensity and open circuit configuration of high-speed stirred mills allow them to remedy the effects of density and hardness in streams ground in primary ball mills with classifying cyclones. By varying the stress intensity in a mill via the impeller speed it is possible to target either hard or soft minerals for liberation depending on the requirements of a particular flotation stream. A lower impeller speed would be used in order to improve liberation of softer minerals without needlessly grinding harder minerals, while a higher impeller speed would be necessary if liberation of hard minerals were important. The difference in impeller speed requirements reflects the difference in optimal stress intensity for grinding hard and soft minerals. The two high-speed stirred mills had similar energy requirements, and both mills had lower specific energy requirements than full-scale tower mills treating the same flotation streams. The vertical stirred mill products contained a greater proportion of fines compared to the horizontal mill products when compared using the Rosin-Rammler distribution, although this result was not consistent across different means of size distribution characterization. Mineral liberation behavior was similar for the horizontal and vertical high-speed stirred mills. The greatest benefit of regrinding using high-speed stirred mills was improved quartz liberation.
แนวทางการบริหารจัดการและปรับปรุงพื้นที่เพื่อตอบสนองการใช้งานของนักศึกษากรณีศึกษา: พื้นที่ชั้น 2 คณะเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยนครพนม
Creators: name: ณธายุ  ชวพัฒนโยธา
Publisher: name: ์Nakhon Phanom University
Year: 2021
Subjects: Area management
Area Renovation
Usability

description: Journal of Engineering Technology Access, 1, 2, 35-47
Efficient polarization squeezing in optical fibers
Creators: name: Heersink, J.
name: Josse, V.
name: Leuchs, G.
name: Andersen, U. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on a novel and efficient source of polarization squeezing using a single pass through an optical fiber. Simply passing this Kerr squeezed beam through a carefully aligned lambda/2 waveplate and splitting it on a polarization beam splitter, we find polarization squeezing of up to 5.1 +/- 0.3 dB. The experimental setup allows for the direct measurement of the squeezing angle.
description: 4 pages, 4 figures