cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 5 of Age-associated genes in human mammary gland drive human breast cancer progression
Creators: name: Gu, Xiang
name: Bingzhi Wang
name: Haiyan Zhu
name: Zhou, You
name: Horning, Aaron M.
name: Huang, Tim H-M
name: Yidong Chen
name: Houghton, Peter
name: Lai, Zhao
name: Michalek, Joel E.
name: Sun, Lu-Zhe
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Plant Biology

description: Additional file 5: Supplementary Figure 5. Confirmation of knockdown and overexpression of the depicted gene proteins with Western blotting. Knockdown of DYNLT3 and P4HA3 proteins and overexpression of ALX4 and WDR86 proteins were confirmed in both BT-474 and MDA-MB-231 cell lines with Western blotting.
Information Services and ICT Development in Agriculture of the Czech Republic
Creators: name: Vanek, Jiri
name: Jarolimek, Jan
name: Simek, Pavel
name: Vanek, Jiri
name: Jarolimek, Jan
name: Simek, Pavel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Broadband
subject: ADSL
subject: FTTx
subject: Wi-Fi
subject: CDMA

description: The paper presents results of KIT (Department of Information Technologies) research which maps the actual state and expected development trends of information and communication technologies in conditions of CR agriculture. It includes results of investigation realized in 2008 with connection to the actually carried out inquiry in the first half-year 2009.
How is Binary Radio-Pulsars with Black Holes Population Rich?
Creators: name: Lipunov, V. M.
name: Bogomazov, A. I.
name: Abubekerov, M. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using "Scenario Machine" we have carried out population synthesis of radio pulsar with black hole binaries (BH+Psr) in context of the most wide assumptions about star mass loss during evolution, binary stars mass ratio distribution, kick velocity and envelope mass lost during collapse. Our purpose is to display that under any suppositional parameters of evolution scenario BH+Psr population have to be abundant in Galaxy. It is shown that in the all models including models evolved by Heger et al. (2002), Woosley et al. (2002), Heger et al. (2003) expected number of the black holes paired with radio pulsars is sufficient enough to discover such systems within the next few years.
description: 8 pages, 4 figures, accepted to MNRAS
Scalable Spectral Clustering with Nystrom Approximation: Practical and Theoretical Aspects
Creators: name: Pourkamali-Anaraki, Farhad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Spectral clustering techniques are valuable tools in signal processing and machine learning for partitioning complex data sets. The effectiveness of spectral clustering stems from constructing a non-linear embedding based on creating a similarity graph and computing the spectral decomposition of the Laplacian matrix. However, spectral clustering methods fail to scale to large data sets because of high computational cost and memory usage. A popular approach for addressing these problems utilizes the Nystrom method, an efficient sampling-based algorithm for computing low-rank approximations to large positive semi-definite matrices. This paper demonstrates how the previously popular approach of Nystrom-based spectral clustering has severe limitations. Existing time-efficient methods ignore critical information by prematurely reducing the rank of the similarity matrix associated with sampled points. Also, current understanding is limited regarding how utilizing the Nystrom approximation will affect the quality of spectral embedding approximations. To address the limitations, this work presents a principled spectral clustering algorithm that exploits spectral properties of the similarity matrix associated with sampled points to regulate accuracy-efficiency trade-offs. We provide theoretical results to reduce the current gap and present numerical experiments with real and synthetic data. Empirical results demonstrate the efficacy and efficiency of the proposed method compared to existing spectral clustering techniques based on the Nystrom method and other efficient methods. The overarching goal of this work is to provide an improved baseline for future research directions to accelerate spectral clustering.
description: Published in IEEE Open Journal of Signal Processing
World agricultural production and consumption
Creators: name: Smutka, Lubos
name: Steininger, Michal
name: Miffek, Ondrej
name: Smutka, Lubos
name: Steininger, Michal
name: Miffek, Ondrej
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Production Economics
subject: Agriculture
subject: production
subject: consumption
subject: development
subject: analyses
subject: World

description: The article deals with an analysis of the world agricultural and foodstuff production and consumption. It analyses production and consumption development during the last 45 years (1961-2006). The aim of our paper is to analyse the current growth of population and foodstuff consumption and production and on the basis of these analyses, the paper tries to analyse the past and current food production development. In general, the paper analyses which factors influenced the foodstuff demand and which factors influenced the foodstuff supply.
Alpha-Pfaffian, pfaffian point process and shifted Schur measure
Creators: name: Matsumoto, Sho
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 15A15; 05E05

description: For any complex number $α$ and any even-size skew-symmetric matrix $B$, we define a generalization $\pfaα(B)$ of the pfaffian $\pf(B)$ which we call the $α$-pfaffian. The $α$-pfaffian is a pfaffian analogue of the $α$-determinant. It gives the pfaffian at $α=-1$. We give some formulas for $α$-pfaffians and study the positivity. Further we define point processes determined by the $α$-pfaffian. Also we provide a linear algebraic proof of the explicit pfaffian expression for the correlation function of the shifted Schur measure.
description: 24 pages
The range and the structure of subsidies in agriculture companies reaching a different economical level
Creators: name: Svobodova, Eliska
name: Vinohradsky, Karel
name: Svobodova, Eliska
name: Vinohradsky, Karel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Agricultural companies
subject: subsidies
subject: economical level of companies
subject: natural conditions

description: The paper deals with a range and a structure of subsidies in agricultural companies reach a different economic level and farm in different natural conditions. The research realized within a set of 109 agricultural companies of NUTS II South-East throughout the years 2001-2003 shows that the endowment support of field economy had the same extent in the main (subsidies for 1 ha of agricultural land and for one worker), both in the group of different economic level and in the group of agricultural companies running their own business in different natural conditions during this period. The structure of subsidies, in a view-point of their special purpose, is a bit different among the companies running businesses in less favored areas (LFA), namely in a higher share of subsidies supporting a non-production asset, ecological agriculture and beef-raising.
Legal regulation of information and communications technologies as specific forms of production factor for capital in food industry
Creators: name: Salkova, Daniela
name: Hes, Ales
name: Salkova, Daniela
name: Hes, Ales
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research and Development/Tech Change/Emerging Technologies
subject: Legal regulations
subject: ICT
subject: food industry
subject: production resources
subject: capital

description: Information and communication technologies are one of factors that markedly influence agricultural primary production and food industry as well as all other branches of the national economy. Therefore, it is necessary to analyse an effect of Community legal regulations for electronic transactions on resource utility.
NP-hardness of the cluster minimization problem revisited
Creators: name: Adib, A. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computational Complexity (cs.CC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The computational complexity of the "cluster minimization problem" is revisited [L. T. Wille and J. Vennik, J. Phys. A 18, L419 (1985)]. It is argued that the original NP-hardness proof does not apply to pairwise potentials of physical interest, such as those that depend on the geometric distance between the particles. A geometric analog of the original problem is formulated, and a new proof for such potentials is provided by polynomial time transformation from the independent set problem for unit disk graphs. Limitations of this formulation are pointed out, and new subproblems that bear more direct consequences to the numerical study of clusters are suggested.
description: 8 pages, 2 figures, accepted to J. Phys. A: Math. and Gen
Virtual form of education in lifelong learning - chance for the country
Creators: name: Jarolimek, Jan
name: Vanek, Jiri
name: Simek, Pavel
name: Jarolimek, Jan
name: Vanek, Jiri
name: Simek, Pavel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: E-learning
subject: virtual education
subject: lifelong learning
subject: rural development
subject: multimedia

description: The availability of education, including lifelong learning, is one of the value measures of quality of life in advanced countries. However, there are still significant differences between a township and a rural region. Centres of education are mainly situated in big cities; smaller municipalities are separated from these centres by tens or hundreds of kilometers (according to the conditions of the Czech Republic). While educating young people, it is usually accepted that they commute towards education; there is a whole range of social and cultural aspects; and above all, they have time for that - it is their main “working” load. The opposite situation is the case in lifelong learning, which is conducted in parallel with full-time employment but is necessary for effective and competitive performing of the employment. For participants of lifelong learning it is impossible to commute big distances; their working load does not allow it. Thus, those forms, in which so called „education which goes to the students”, are chosen. ICT brings an enormous opportunity to bring education closer to the rural regions. A text form of e-learning is practically already standard; but a voice and image broadcast give us inexhaustible possibilities of usage. The aim of this paper is to propose and verify methods of distant (virtual) education with the use of multimedia tools.
Particle alignments and shape change in $^{66}$Ge and $^{68}$Ge
Creators: name: Hasegawa, M.
name: Kaneko, K.
name: Mizusaki, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure of the $N \approx Z$ nuclei $^{66}$Ge and $^{68}$Ge is studied by the shell model on a spherical basis. The calculations with an extended $P+QQ$ Hamiltonian in the configuration space ($2p_{3/2}$, $1f_{5/2}$, $2p_{1/2}$, $1g_{9/2}$) succeed in reproducing experimental energy levels, moments of inertia and $Q$ moments in Ge isotopes. Using the reliable wave functions, this paper investigates particle alignments and nuclear shapes in $^{66}$Ge and $^{68}$Ge. It is shown that structural changes in the four sequences of the positive- and negative-parity yrast states with even $J$ and odd $J$ are caused by various types of particle alignments in the $g_{9/2}$ orbit. The nuclear shape is investigated by calculating spectroscopic $Q$ moments of the first and second $2^+$ states, and moreover the triaxiality is examined by the constrained Hatree-Fock method. The changes of the first band crossing and the nuclear deformation depending on the neutron number are discussed.
description: 18 pages, 21 figures; submitted to Phys. Rev. C
On a question of Mordell
Creators: name: Booker, Andrew R.
name: Sutherland, Andrew V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11Y50 (Primary) 11D25 (Secondary)

description: We make several improvements to methods for finding integer solutions to $x^3+y^3+z^3=k$ for small values of $k$. We implemented these improvements on Charity Engine's global compute grid of 500,000 volunteer PCs and found new representations for several values of $k$, including $k=3$ and $k=42$. This completes the search begun by Miller and Woollett in 1954 and resolves a challenge posed by Mordell in 1953.
description: updated to include solution for 579; 15 pages, 2 figures
Factors affecting program evaluation behaviours of natural resource extension practitioners in the United States
Creators: name: Morford, Shawn
Publisher: name: University of British Columbia
Year: 2009

description: The systematic process of measuring and reporting on impacts of publicly funded programs, referred to as "program evaluation," is receiving increased attention among federal, provincial/state, and local organizations throughout North America, including education programs funded by the U.S. Department of Agriculture's Cooperative State Research and Extension Education Service (CSREES). Extension professionals who deliver these programs are expected to collect evaluation data that show how programs change knowledge, skills, attitudes, and behaviours of clientele as well as longer-term impacts of interventions. Despite the demand for accountability of Extension programs, the frequency and level of program evaluation conducted by natural resource Extension professionals are highly variable across individuals and states. Using a survey, this study investigated motivation, attitude, perceived organizational commitment, and personal characteristics of natural resource extension professionals (NREPs) as they related to the level of program evaluation conducted. Using Analysis of Variance, Multiple Linear Regression and Cross tabulations, this study examined program evaluation behaviours and attitudes of NREPs who work under the CSREES system in the United States in fields such as watershed stewardship, forest products marketing, land use planning, flood mitigation, and forestry. The study examined how factors such as position classification, tenure status, personnel appraisal criteria, perceived organizational commitment, years of experience, and other factors influence program evaluation behaviour. The study showed that age, years of experience in Extension, belief that performance appraisal is linked to evaluation behaviour, and attitude about program evaluation influence the level of evaluation conducted by NREPs. Position classification (i.e tenure-track/non-tenure track), access to evaluation specialists, perceived organizational commitment to evaluation, access to evaluation specialists, and confidence levels in conducting evaluation also may be linked with level of evaluation conducted but results are less conclusive for those variables. Recommendations are offered to improve the amount and quality of program evaluation. The results will contribute to the body of knowledge that will enhance the evaluation capacity within organizations, especially Extension, and ultimately lead to more effective, efficient, and well-funded natural resource Extension programming.
The value of humanities research
Creators: name: Dukes, Annabel
Publisher: name: F1000 Research Limited
Year: 2023

description: This paper firstly explores current and possible ways of articulating the value of humanities research. It secondly outlines how the incorporation of existing humanities knowledge into news articles could enrich public discussion. It thirdly promotes translational research, which is defined as that which takes place to turn knowledge generated by humanities research – including blue-sky humanities research – into beneficial present-day actions. Translational research both allows for the preservation of the integrity, diversity and unforeseeable findings that come with blue-sky research and ensures that the new knowledge’s potential to benefit the public is realised.
Additional file 4 of Age-associated genes in human mammary gland drive human breast cancer progression
Creators: name: Gu, Xiang
name: Bingzhi Wang
name: Haiyan Zhu
name: Zhou, You
name: Horning, Aaron M.
name: Huang, Tim H-M
name: Yidong Chen
name: Houghton, Peter
name: Lai, Zhao
name: Michalek, Joel E.
name: Sun, Lu-Zhe
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Plant Biology

description: Additional file 4: Supplementary Figure 4. Growth inhibition of breast cancer cell lines by siRNAs targeting selected upregulated ABC genes. Knockdown by siRNAs were performed to study the effect of loss-of-function on 14 up-regulated genes. Knockdowns of seven genes (DYNLT3, P4HA3, CLEC3A, CTHRC1, RNASE2, LPAR5, LRRC15) showed different inhibitory effects on cell proliferation of seven breast cancer cell lines. Three control conditions (green: regular culture; blue: plus transfection reagent; Yellow: plus transfection reagent and a scrambled siRNA) and three siRNAs (black, gray, and red lines) to each gene are included in the experiment.
Cosmological weak lensing with the HST GEMS survey
Creators: name: Heymans, Catherine
name: Brown, Michael L.
name: Barden, Marco
name: Caldwell, John A. R.
name: Jahnke, Knud
name: Peng, Chien Y.
name: Rix, Hans-Walter
name: Taylor, Andy
name: Beckwith, Steven V. W.
name: Bell, Eric F.
name: Borch, Andrea
name: Haeussler, Boris
name: Jogee, Shardha
name: McIntosh, Daniel H.
name: Meisenheimer, Klaus
name: Sanchez, Sebastian F.
name: Somerville, Rachel
name: Wisotzki, Lutz
name: Wolf, Christian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present our cosmic shear analysis of GEMS, one of the largest wide-field surveys ever undertaken by the Hubble Space Telescope. Imaged with the Advanced Camera for Surveys (ACS), GEMS spans 795 square arcmin in the Chandra Deep Field South. We detect weak lensing by large-scale structure in high resolution F606W GEMS data from ~60 resolved galaxies per square arcminute. We measure the two-point shear correlation function, the top-hat shear variance and the shear power spectrum, performing an E/B mode decomposition for each statistic. We show that we are not limited by systematic errors and use our results to place joint constraints on the matter density parameter Omega_m and the amplitude of the matter power spectrum sigma_8. We find sigma_8(Omega_m/0.3)^{0.65}=0.68 +/- 0.13 where the 1sigma error includes both our uncertainty on the median redshift of the survey and sampling variance. Removing image and point spread function (PSF) distortions are crucial to all weak lensing analyses. We therefore include a thorough discussion on the degree of ACS PSF distortion and anisotropy which we characterise directly from GEMS data. Consecutively imaged over 20 days, GEMS data also allows us to investigate PSF instability over time. We find that, even in the relatively short GEMS observing period, the ACS PSF ellipticity varies at the level of a few percent which we account for with a semi-time dependent PSF model. Our correction for the temporal and spatial variability of the PSF is shown to be successful through a series of diagnostic tests.
description: 17 pages, 16 figures. Version accepted by MNRAS
Additional file 3 of Age-associated genes in human mammary gland drive human breast cancer progression
Creators: name: Gu, Xiang
name: Bingzhi Wang
name: Haiyan Zhu
name: Zhou, You
name: Horning, Aaron M.
name: Huang, Tim H-M
name: Yidong Chen
name: Houghton, Peter
name: Lai, Zhao
name: Michalek, Joel E.
name: Sun, Lu-Zhe
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Plant Biology

description: Additional file 3: Supplementary Figure 3. Scatter Heatmap plot on mutations of ABC genes. CTHRC1 and ETV3L had over 10% alterations in 1074 breast cancer patients (analyzed by cBioPortal, as of August 22nd 2017). Each vertical bar represent one patient. Light gray bars with no red, blue, dark gray or green color represent patients without any genetic alteration in consideration. The color bars at the top depicts patient status, including ER, HER2 and menopause status. The color legends are shown at the bottom.
Particle-Hole Symmetries in Condensed Matter
Creators: name: Zirnbauer, Martin R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The term "particle-hole symmetry" is beset with conflicting meanings in contemporary physics. Conceived and written from a condensed-matter standpoint, the present paper aims to clarify and sharpen the terminology. In that vein, we propose to define the operation of "particle-hole conjugation" as the tautological algebra automorphism that simply swaps single-fermion creation and annihilation operators, and we construct its invariant lift to the Fock space. Particle-hole symmetries then arise for gapful or gapless free-fermion systems at half filling, as the concatenation of particle-hole conjugation with one or another involution that reverses the sign of the first-quantized Hamiltonian. We illustrate that construction principle with a series of examples including the Su-Schrieffer-Heeger model and the Kitaev-Majorana chain. For an enhanced perspective, we contrast particle-hole symmetries with the charge-conjugation symmetry of relativistic Dirac fermions. We go on to present two major applications in the realm of interacting electrons. For one, we argue that the celebrated Haldane phase of antiferromagnetic quantum spin chains is adiabatically connected to a free-fermion topological phase protected by a particle-hole symmetry. For another, we review the recent proposal by Son for a particle-hole conjugation symmetric effective field theory of the half-filled lowest Landau level, and we comment on the emerging microscopic picture of the composite fermion.
description: 50 pages, 7 figures
Deep spectroscopy of a young radio source at z=0.521
Creators: name: Inskip, K. J.
name: Lee, D.
name: Cotter, Garret
name: Readhead, A. C. S.
name: Pearson, T. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: 9C J1503+4528 is a very young CSS radio galaxy, with an age of order 10^4 years. This source is an ideal laboratory for the study of the intrinsic host galaxy/IGM properties, radio source interactions, evidence for young stellar populations and the radio source triggering mechanism. Here we present the results of a spectroscopic analysis of this source, considering each of these aspects of radio source physics.
description: 4 pages, 2 figures, to be published in Astronomische Nachrichten
Prefarm Systems and economical analysis of practical experiences
Creators: name: Gnip, Pavel
name: Kafka, Stepan
name: Cepicky, Jachym
name: Charvat, Karel
name: Gnip, Pavel
name: Kafka, Stepan
name: Cepicky, Jachym
name: Charvat, Karel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Farm Management
subject: Research and Development/Tech Change/Emerging Technologies
subject: GPS
subject: GIS
subject: precision farming
subject: economical analysis
subject: monitoring

description: The system of Precision farming guarantees a detail monitoring of data and information necessary for a successful decision in a crop production. The system is designed for a data collection from several sources. The data are collected by a service company and also directly by farmers. The paper also analyses the economical efficiency on the base of Medlov Farm. Next development is currently running under projects Prezem and AgriSensor.
Stone-Wales defects in hexagonal boron nitride as ultraviolet emitters
Creators: name: Hamdi, Hanen
name: Thiering, Gergő
name: Bodrog, Zoltán
name: Ivády, Viktor
name: Gali, Adam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many quantum emitters have been measured close or near the grain boundaries of the two-dimensional hexagonal boron nitride where various Stone-Wales defects appear. We show by means of first principles density functional theory calculations that the pentagon-heptagon Stone-Wales defect is an ultraviolet emitter and its optical properties closely follow the characteristics of a 4.08-eV quantum emitter often observed in polycrystalline hexagonal boron nitride. We also show that the square-octagon Stone-Wales line defects are optically active in the ultraviolet region with varying gaps depending on their density in hexagonal boron nitride. Our results may introduce a paradigm shift in the identification of fluorescent centres in this material.
description: 5 figures
FutureFarm vision
Creators: name: Charvat, Karel
name: Gnip, Pavel
name: Mayer, Walter H.
name: Charvat, Karel
name: Gnip, Pavel
name: Mayer, Walter H.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Farm Management
subject: Farming
subject: external drivers
subject: future vision
subject: knowledge management
subject: SOA

description: This paper defines the first version of a vision of Future Farming project and also a knowledge management system used by European farms which will be designed and developed by the Future Farm project. An important part of the vision is a definition of external drivers and their influence on farm business in future. Paper is looking on a situation in three periods: short (2013), middle (2020) and long-term (2030). Our vision expects that the farming system will continuously converge to the situation of two types of farm: an industrial farm, which will guarantee both the food safety and the food security for European citizens, and multifunctional farms focused on environment protection. The recommendation proposes an architecture based on communication of interoperable services, so called Service Oriented Architecture (SOA), for easy integration of different levels and components of farm management.
Transport through a Strongly Correlated Quantum-Dot with Fano Interference
Creators: name: Wu, B. H.
name: Cao, J. C.
name: Ahn, Kang-Hun
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the transport properties of a strongly correlated quantum dot attached to two leads with a side coupled non-interacting quantum dot. Transport properties are analyzed using the slave boson mean field theory which is reliable in the zero temperature and low bias regime. It is found that the transport properties are determined by the interplay of two fundamental physical phenomena,i.e. the Kondo effects and the Fano interference. The linear conductance will depart from the unitary limit and the zero bias anomaly will be suppressed in the presence of interdot coupling. The zero bias shot noise Fano factor increases with the interdot coupling and tends to the Poisson value. The shot noise Fano factor shows a non-monotonic behavior as a function of the interdot coupling for various side dot energy levels.
The Trends of the Agrarian Foreign Trade of CR after Accession to EU, Competitiveness of Commodities
Creators: name: Burianova, Jaroslava
name: Burianova, Jaroslava
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agrarian foreign trade
subject: foreign trade
subject: competitiveness
subject: competitive advantage
subject: Balass RCA indicator
subject: Michaely index

description: The extent of agricultural foreign trade (AFT) of the Czech Republic (CR) increased markedly after accession to EU. The first part of this article is devoted to the trends during the period of 2004 – 2008. Detailed analysis of the CR AFT has been carried out for all 24 items of the basic food goods during the same period for the assessment of competitiveness of individual commodities. The Balass indicator RCA (Revealed Comparative Advantage) was used for this analysis, as well as the Michaely index that shows the specific measure of specialization for export. The method of logarithmic decomposition, which makes it possible to determine the effect of prices and quantities to net export has also been used. This paper was processed within the framework of the Research Project of MSM 6046070906 "The economics of Czech agricultural resources and their effective use in the frame of multifunctional agri-food systems".
Sustainable growth rate in the strategic analysis of brewery industry
Creators: name: Daszynska-Zygadlo, Karolina
name: Slonski, Tomasz
name: Daszynska-Zygadlo, Karolina
name: Slonski, Tomasz
Publisher: name: Unknown
Year: 2010
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Growth
subject: strategic analysis
subject: seer industry
subject: corporate growth

description: An analysis of sustainable growth rate could considerably improve an assessment of Strategic Business Unit’s potential. The sustainable growth rate analysis enabled us to compare a possible growth rate within the brewery industry with a growth rate that firms had achieved. To demonstrate this in more depth, we presented a case study of the brewery industry in Poland and Czech Republic.
„Doppelte Politikverflechtung“ als Bestimmungsfaktor der Agrarstruktur- und der Agrarumweltpolitik in der BR Deutschland
Creators: name: Mehl, Peter
name: Plankl, Reiner
name: Mehl, Peter
name: Plankl, Reiner
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Political Economy
subject: Agricultural structure policies
subject: agri-environmental policies
subject: interlocked federalism
subject: rural areas
subject: financial analysis
subject: federalism

description: A large portion of the agri-structural policies and agri-environmental policies in the Federal Republic of Germany are decided within the framework of complex decision-making structures and fiscal responsibility at different political levels (the federal states, the national government, and the European Union), resulting in “double-interlocked federalism”. This paper describes the specific institutional configuration and its historical development, and presents a financial analysis of the development plans for rural areas in selected federal states to illustrate the increasing role of interlocked federalism. The interplay between the political levels took an unexpectedly flexible, and between the various states heterogeneous, form. All in all, however, the results did not corroborate the theoretical point of view suggesting a “joint decision trap.”
Toward Decoding the Relationship between Domain Structure and Functionality in Ferroelectrics via Hidden Latent Variables
Creators: name: Kalinin, Sergei V.
name: Kelley, Kyle
name: Vasudevan, Rama K.
name: Ziatdinov, Maxim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polarization switching mechanisms in ferroelectric materials are fundamentally linked to local domain structure and presence of the structural defects, which both can act as nucleation and pinning centers and create local electrostatic and mechanical depolarization fields affecting wall dynamics. However, the general correlative mechanisms between domain structure and polarization dynamics are only weakly explored, precluding insight into the associated physical mechanisms. Here, the correlation between local domain structures and switching behavior in ferroelectric materials is explored using the convolutional encoder-decoder networks, enabling the image to spectral (im2spec) and spectral to image (spec2im) translations via encoding latent variables. The latter reflects the assumption that the relationship between domain structure and polarization switching is parsimonious, i.e. is based upon a small number of local mechanisms. The analysis of latent variables distributions and their real space representations provides insight into the predictability of the local switching behavior, and hence associated physical mechanisms. We further pose that the regions where these correlative relationships are violated, i.e. predictability of the polarization dynamics from domain structure is reduced, represent the obvious target for detailed studies, e.g. in the context of automated experiments. This approach provides a workflow to establish the presence of correlation between local spectral responses and local structure and can be universally applied to spectral imaging techniques such as PFM, scanning tunneling microscopy (STM) and spectroscopy, and electron energy loss spectroscopy (EELS) in scanning transmission electron microscopy (STEM).
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Correlation functions and pressure of non-isothermal plasma
Creators: name: Medvedev, Emile S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Expressions for correlation functions of classical non-isothermal two-component plasma are derived. In the limiting case of $Θ_e\ggΘ_i$ strong correlations arise due to the existence of weakly damping waves (ionic sound), whose phase velocity is between the thermal velocities of particles, $u_e\ggω/k\gg u_i$. Owing to these correlations, the additional term in the expression for pressure due to the Coulomb interaction changes its sign as compared to the case of thermodynamic equilibrium where such waves do not exist.
Agrarpolitik als Management öffentlicher Güter: Zur Ökonomik der dezentralen Bereitstellung von Natur in der Kulturlandschaft
Creators: name: Nuppenau, Ernst-August
name: Nuppenau, Ernst-August
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Political bargaining model
subject: ecological main structure
subject: nature provision

description: Political procedures aimed at solving conflicts of agriculture and the environment are becoming increasingly important. In contrast to previous research, property rights solutions are regarded as inappropriate to solve the conflicts between farming and nature conservation due to transaction costs. The political process is considered as a substitute for market transactions in an agri-environment being a public good and advised as an ecological main structure (EMS). The paper addresses the problem by introducing a public manager who is responsible for the provision of an ecological main structure. It applies a political economy model of social bargaining, shows how a tragedy of the commons problem may prevail in field margin provision, and outlines a social optimum for an EMS. Finally, it provides for a solution to the problem of establishing socially acceptable rules for individuals in a political economy framework. In that solution farmers’, environmentalists’, and a manager’s interests are considered simultaneously and the paper provides for a unified solution on the basis of a derived public objective function.
The statistics of particle velocities in dense granular flows
Creators: name: Moka, Sudheshna
name: Nott, Prabhu R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present measurements of the particle velocity distribution in the flow of granular material through vertical channels. Our study is confined to dense, slow flows where the material shears like a fluid only in thin layers adjacent to the walls, while a large core moves without continuous deformation, like a solid. We find the velocity distribution to be non-Gaussian, anisotropic, and to follow a power law at large velocities. Remarkably, the distribution is identical in the fluid-like and solid-like regions. The velocity variance is maximum at the core, defying predictions of hydrodynamic theories. We show evidence of spatially correlated motion, and propose a mechanism for the generation of fluctuational motion in the absence of shear.
description: Submitted to Phys. Rev. Lett
Impacts of environmental regulations on the efficiency of arable farms in France and Germany
Creators: name: Piot-Lepetit, Isabelle
name: Brümmer, Bernhard
name: Kleinhanss, Werner
name: Piot-Lepetit, Isabelle
name: Brümmer, Bernhard
name: Kleinhanss, Werner
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Productivity Analysis
subject: Frontier analysis
subject: technical and environmental efficiency
subject: environmental regulations

description: This paper develops a methodology for asymmetric treatment of desirable and undesirable outputs. First, a hyperbolic output efficiency measurement is used to describe a middle term transformation of production processes where producers try to improve their competitiveness together with a reduction of the negative impact on the environment. Second, a radial efficiency measurement, called directional output distance function, is used to depict a long-term transformation of the production process. A non-parametric Data Envelopment Analysis (DEA) and a Stochastic Frontier Analysis (SFA) are used to evaluate the impact of agricultural policy changes, both in France and Germany, on the technical and environmental efficiency of arable farms, taking into account participation or not in agri-environmental programs. The results from both methods indicate only limited possibilities for environmental improvements, mainly for farms participating in agri-environmental programs.
The Calan-Yale Deep Extragalactic Research (CYDER) Survey: Optical Properties and Deep Spectroscopy of Serendipitous X-ray Sources
Creators: name: Treister, Ezequiel
name: Castander, Francisco
name: Maccarone, Thomas
name: Gawiser, Eric
name: Coppi, Paolo
name: Urry, C. Megan
name: Maza, Jose
name: Herrera, David
name: Gonzalez, Valentino
name: Montoya, Carlos
name: Pineda, Pedro
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results from the Calán-Yale Deep Extragalactic Research (CYDER) survey. The main goal of this survey is to study serendipitous X-ray sources detected by Chandra in an intermediate flux range ($10^{-15}-10^{-12}$ ergs s$^{-1}$) that comprises most of the X-ray background. 267 X-ray sources spread over 5 archived fields were detected. The $\log N-\log S$ distribution obtained for this sample is consistent with the results of other surveys. Deep $V$ and $I$ images were taken of these fields in order to calculate X-ray-to-optical flux ratios. Identifications and redshifts were obtained for 106 sources using optical spectroscopy from 8-m class telescopes to reach the optically faintest sources, to the same level as deeper X-ray fields like the Chandra Deep Fields, showing that the nature of sources detected depends mostly on the optical limit for spectroscopy. In general, sources optically classified as obscured Active Galactic Nuclei (AGNs) have redder optical colors than unobscured AGN. A rough correlation between $f_X/f_{\rm opt}$ and hard X-ray luminosity was found for obscured AGN confirming the prediction by existing models that in obscured AGN the optical light is completely dominated by the host galaxy. The previously claimed decrease of the obscured to unobscured AGN ratio with increasing X-ray luminosity is observed. However, this correlation can be explained as a selection effect caused by the lower optical flux of obscured AGN. Comparison between the observed $N_H$ distribution and predictions by existing models shows that the sample appears complete up to $N_H<3\times 10^{22}$ cm$^{-2}$, while for more obscured sources incompleteness plays an important role in the observed obscured to unobscured AGN ratio.
description: 47 pages, 19 figures, Astrophysical Journal Accepted
Effects of forest roads on the growth of adjacent lodgepole pine trees in the Williams Lake area of B.C.
Creators: name: Bowering, Michael Scott
Publisher: name: University of British Columbia
Year: 2009

description: This study examines the effects of roads on the growth of adjacent lodgepole pine (Pinus contorta Dougl. var. latifolia Englm.) trees near Williams Lake, British Columbia. Three questions were addressed in this research: 1) Do roads result in increased diameter or height growth along the road right-ofway edge? 2) If increases occur, how far do they extend from the edge? 3) What are the stand level impacts of any increase in growth? Forty-four plots, ranging from 0.04 to 0.24 ha in size were established and measured in 1999. Plot ages ranged from 37 to 121 years, road widths from 5.3 to 38.5 m, and basal area densities from 14 to 45 m2 ha"1 . Beginning at the edge, five zones were established at 0 to 5 m, 5 to 10 m, 10 to 20 m, 20 to 30 m, and 30 to 40 m from the edge. Zone 5, at 30 to 40 m from the edge, was used as a baseline for comparison. On average, a 31.3% (using a 95% C.I.; 14.2% to 48.4%) increase in basal area per ha relative to the baseline in Zone 5, occurred within the first 5 m. Mortality was found to be lowest at the edge. As Zone 1 was 5 m wide, this translated into 1.56 m (or 13.6%) of the average 23.4 m road width (using a 95% C.I.; 0.71 to 2.42 m) that is recovered from the increase in basal area for an average stand. If both sides of the road were similarly impacted, then an equivalent of 3.12 m of growing space would be recovered. These results are similar to those by other researchers. Differences in the Zone 1 basal area per ha values relative to Zone 5 were significantly correlated to plot basal area per ha only. Other variables such as road width and edge aspect were not significantly correlated with the relative basal area per ha in Zone 1. The growth rates of trees in the 5 m edge zone, scaled for the 5 years prior to road establishment, differed significantly from growth rates in other zones. The growth rate of trees in the first 5 m increased by 32.1% on average, for the 3 to 15 years after the road opening was established. Significant differences were not found in the bole ellipticity, relative to road orientation. No corresponding increase in average basal area per tree or in average height was noted. The stands sampled in this study were comprised mostly of lodgepole pine, were relatively free of selective cutting and were away from other edges or openings. The results should, therefore, be applicable only to lodgepole pine stands and caution should be used in applying these results to stands with management treatments other than the road, particularly with the cutting of stems at the road edge. Key words: Road edge effects, linear openings, growth and yield, basal area increment, bole ellipticity, edge distance, recovered growing space, Pinus contorta Dougl. var. latifolia Englm., Williams Lake British Columbia.
Landwirtschaft und Agrarpolitik in Deutschland und Frankreich auf der Suche nach neuen Wegen
Creators: name: Schlagheck, Hermann
name: Schlagheck, Hermann
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Integrated rural development
subject: rural areas
subject: multifunctional agriculture
subject: regional development

description: The concept of integrated rural development also represents a suitable approach for solving rural development problems in Europe. There are several reasons supporting the concept of rural development: changing framework conditions require new solutions and policies; rural areas need region-specific-development concepts; complex decision making requires cooperation between different actors and levels; sector-specific support remains part of region-specific development concepts; integrated rural development is time-consuming and requires intensive communication. A future-oriented sustainable policy for rural areas has to consider all functions of agriculture in a society, and this perspective can only be achieved with an integrated development approach.
Theory of carrier dynamics and time resolved reflectivity in InMnAs/GaSb heterostructures
Creators: name: Sanders, G. D.
name: Stanton, C. J.
name: Wang, J.
name: Kono, J.
name: Oiwa, A.
name: Munekata, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present detailed theoretical calculations of two color, time-resolved pump-probe differential reflectivity measurements. The experiments modeled were performed on InMnAs/GaSb heterostructures and showed pronounced oscillations in the differential reflectivity as well as a time-dependent background signal. Previously, we showed that the oscillations resulted from generation of coherent acoustic phonon wavepackets in the epilayer and were not associated with the ferromagnetism. Now we take into account not only the oscillations, but also the background signal which arises from photoexcited carrier effects. The two color pump-probe reflectivity experiments are modeled using a Boltzmann equation formalism. We include photogeneration of hot carriers in the InMnAs quantum well by a pump laser and their subsequent cooling and relaxation by emission of confined LO phonons. Recombination of electron-hole pairs via the Schockley-Read carrier trapping mechanism is included in a simple relaxation time approximation. The time resolved differential reflectivity in the heterostructure is obtained by solving Maxwell's equations and compared with experiment. Phase space filling, carrier capture and trapping, band-gap renormalization and induced absorption are all shown to influence the spectra.
description: 14 pages, 10 figures