cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling the Influences of Social Capital on Formation of Student Entrepreneurial Character
Creators: name: Fitria, Umi
name: Dardiri, Achmad
name: Sugiharsono, Sugiharsono
name: Yanto, Bagus Endri
Publisher: name: Academia
Year: 2021
Subjects: Social capital, entrepreneurial character, entrepreneurship education

description: The values of social capital can be utilized in the context of shaping the entrepreneurial character and can be integrated into the learning process. The purpose of this research is to find out the structural equation modeling that illustrates the role of social capital in the formation of the student entrepreneurial character in the educational process. This research is explanatory research adopting the quantitative approach, along with the survey method to report the measurement of social capital on the entrepreneurial character of students. The population in this study were all the fourth and sixth semester students of the Academic Year 2017/2018 at the University of AMIKOM Yogyakarta. The samples taken from this research population used the stratified cluster random sampling technique. The number of samples in this research was 360 respondents. The results showed that social capital had a path coefficient with the entrepreneurial character of 0.77 shows a positive number and is quite high. This research concludes that social capital has a significant influence on the students' entrepreneurial character with a p-value ≥ 0.05, and a p-value of 0.17863. Social capital owned by the campus is utilized by the students well, it will support the formation of the entrepreneurial character.
description: Academia, No 25 (2021)
Effects of N fertilization on forest trees and ecosystems: water use, WUE, growth
Creators: name: Zhang, Qiran <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: AGR/05 Assestamento forestale e selvicoltura

description: During my three academic years, I focused on the effects of N fertilization on growth and function
of plants and forest stands. The study had the dual objective of estimating the effects of atmospheric
N deposition and evaluating the potential management value of N fertilization itself. In particular,
the analysis took into account the changes induced in water use and intrinsic transpiration efficiency
(ITE), an aspect often overlooked in world literature but of great importance especially in
Mediterranean environment, where the positive effects of N fertilization may be denied by the
parallel increased transpiration and exacerbated water stress.
Relating the microscopic rules in coalescence-fragmentation models to the macroscopic cluster size distributions which emerge
Creators: name: Ruszczycki, Blazej
name: Burnett, Ben
name: Zhao, Zhenyuan
name: Johnson, Neil F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Coalescence-fragmentation problems are of great interest across the physical, biological, and recently social sciences. They are typically studied from the perspective of the rate equations, at the heart of such models are the rules used for coalescence and fragmentation. Here we discuss how changes in these microscopic rules affect the macroscopic cluster-size distribution which emerges from the solution to the rate equation. More generally, our work elucidates the crucial role that the fragmentation rule can play in such dynamical grouping models. We focus on two well-known models whose fragmentation rules lie at opposite extremes setting the models within the broader context of binary coalescence-fragmentation models. Further, we provide a range of generalizations and new analytic results for a well-known model of social group formation [V. M. Eguiluz and M. G. Zimmermann, Phys. Rev. Lett. 85, 5659 (2000)]. We develop analytic perturbation treatment of the original model, and extend the mathematical to the treatment of growing and declining populations.
Pre-enrolment factors influencing the academic performance of entrepreneurship students in higher education
Creators: name: Sibanda, Lucky
name: Iwu, Chux Gervase
Publisher: name: Academia
Year: 2021
Subjects: Pre-enrolment factors; career guidance; entrepreneurship students; academic success; academic failure

description: In South Africa, most students who complete secondary education are underprepared for higher education. Most of those who make it into higher education do not complete their programme on time. Thus, it is essential to study each cohort and understand what would influence their academic performance. The objective of this study is to determine the pre-enrolment factors influencing the academic performance of entrepreneurship students at a tertiary institution in the Western Cape, South Africa. A quantitative approach is followed in this study using a questionnaire to understand the students’ profiles as well the pre-enrolment factors that influence their academic performance. Data was captured and analysed using the latest version of the Statistical Package for Social Sciences (SPSS) Version 26. The top three factors with the highest means relate to lack of career guidance, study material and financial resources. The chi square tests of association confirmed the statistical significance of frequencies. This study has significant implications for both policy development and implementation in basic school education. It also has significant implication for universities in the sense that sufficient support must be in place for the students who come from a not-so-good basic education. Suggestions for further studies are flagged.
description: Academia, No 25 (2021)
Possible evidence of p-modes in Cassini measurements of Saturn's gravity field
Creators: name: Markham, Steve
name: Durante, Daniele
name: Iess, Luciano
name: Stevenson, Dave
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We analyze the range rate residual data from Cassini's gravity experiment that cannot be explained with a static, zonally symmetric gravity field. In this paper we reproduce the data using a simple forward model of gravity perturbations from normal modes. To do this, we stack data from multiple flybys to improve sensitivity. We find a partially degenerate set of normal mode energy spectra which successfully reproduce the unknown gravity signal from Cassini's flybys. Although there is no unique solution, we find that the models most likely to fit the data are dominated by gravitational contributions from p-modes between 500-700uHz. Because f-modes at lower frequencies have stronger gravity signals for a given amplitude, this result would suggest strong frequency dependence in normal mode excitation on Saturn. We predict peak amplitudes for p-modes on the order of several kilometers, at least an order of magnitude larger than the peak amplitudes inferred by Earth-based observations of Jupiter. The large p-mode amplitudes we predict on Saturn, if they are indeed present and steady state, would imply weak damping with a lower bound of Q>1e7 for these modes, consistent with theoretical predictions.
Molecular Gas in the z=1.2 Ultraluminous Merger GOODS J123634.53+621241.3
Creators: name: Frayer, David T.
name: Koda, Jin
name: Pope, Alexandra
name: Huynh, Minh T.
name: Chary, Ranga-Ram
name: Scott, Douglas
name: Dickinson, Mark
name: Bock, Douglas C. -J.
name: Carpenter, John M.
name: Hawkins, David
name: Hodges, Mark
name: Lamb, James W.
name: Plambeck, Richard L.
name: Pound, Marc W.
name: Scott, Stephen L.
name: Scoville, Nicholas Z.
name: Woody, David P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of CO(2-1) emission from the z=1.2 ultraluminous infrared galaxy (ULIRG) GOODS J123634.53+621241.3 (also known as the sub-millimeter galaxy GN26). These observations represent the first discovery of high-redshift CO emission using the new Combined Array for Research in Millimeter-Wave Astronomy (CARMA). Of all high-redshift (z>1) galaxies within the GOODS-North field, this source has the largest far-infrared (FIR) flux observed in the Spitzer 70um and 160um bands. The CO redshift confirms the optical identification of the source, and the bright CO(2-1) line suggests the presence of a large molecular gas reservoir of about 7x10^10 M(sun). The infrared-to-CO luminosity ratio of L(IR)/L'(CO) = 80+/-30 L(sun) (K Km/s pc^2)^-1 is slightly smaller than the average ratio found in local ULIRGs and high-redshift sub-millimeter galaxies. The short star-formation time scale of about 70 Myr is consistent with a starburst associated with the merger event and is much shorter than the time scales for spiral galaxies and estimates made for high-redshift galaxies selected on the basis of their B-z and z-K colors.
description: Accepted for publication in ApJ Letters
Surface order-disorder phase transitions and percolation
Creators: name: Gimenez, M. Cecilia
name: Nieto, Felix
name: Ramirez-Pastor, Antonio J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In the present paper, the connection between surface order-disorder phase transitions and the percolating properties of the adsorbed phase has been studied. For this purpose, four lattice-gas models in presence of repulsive interactions have been considered. Namely, monomers on honeycomb, square and triangular lattices, and dimers (particles occupying two adjacent adsorption sites) on square substrates. By using Monte Carlo simulation and finite-size scaling analysis, we obtain the percolation threshold $θ_c$ of the adlayer, which presents an interesting dependence with $w/k_BT$ (being $w$, $k_B$ and $T$, the lateral interaction energy, the Boltzmann's constant and temperature, respectively). For each geometry and adsorbate size, a phase diagram separating a percolating and a non-percolating region is determined.
description: 25 pages, 12 figures, figures missing in previous version
Shareholder protection and stock market development
Creators: name: Xu, Wenming <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/01 Economia politica

description: The dissertation contains five parts: An introduction, three major chapters, and a short conclusion. The First Chapter starts from a survey and discussion of the studies on corporate law and financial development literature. The commonly used methods in these cross-sectional analyses are biased as legal origins are no longer valid instruments. Hence, the model uncertainty becomes a salient problem. The Bayesian Model Averaging algorithm is applied to test the robustness of empirical results in Djankov et al. (2008). The analysis finds that their constructed legal index is not robustly correlated with most of the various stock market outcome variables. 
The second Chapter looks into the effects of minority shareholders protection in corporate governance regime on entrepreneurs' ex ante incentives to undertake IPO. Most of the current literature focuses on the beneficial part of minority shareholder protection on valuation, while overlooks its private costs on entrepreneur's control. As a result, the entrepreneur trade-offs the costs of monitoring with the benefits of cheap sources of finance when minority shareholder protection improves. The theoretical predictions are empirically tested using panel data and GMM-sys estimator. 
The third Chapter investigates the corporate law and corporate governance reform in China. The corporate law in China regards shareholder control as the means to the ends of pursuing the interests of stakeholders, which is inefficient. The Chapter combines the recent development of theories of the firm, i.e., the team production theory and the property rights theory, to solve such problem. The enlightened shareholder value, which emphasizes on the long term valuation of the firm, should be adopted as objectives of listed firms. In addition, a move from the mandatory division of power between shareholder meeting and board meeting to the default regime, is proposed.
Thermal rectifier from deformed carbon nanohorns
Creators: name: Wu, Gang
name: Li, Baowen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study thermal rectification in single-walled carbon nanohorns (SWNHs) by using non-equilibrium molecular dynamics (MD) method. It is found that the horns with the bigger top angles show larger asymmetric heat transport due to the larger structural gradient distribution. This kind of gradient behavior can be further adjusted by applying external strain on the SWNHs. After being carefully elongated along the axial direction, the thermal rectification in the elongated SWNHs can become more obvious than that in undeformed ones. The maximum rectification efficiency of SWNHs is much bigger than that of carbon nanotube intramolecular junctions.
description: 3 figures
Sums of squares and moment problems in equivariant situations
Creators: name: Cimpric, Jaka
name: Kuhlmann, Salma
name: Scheiderer, Claus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14P10, 14L30, 20G20

description: We begin a systematic study of positivity and moment problems in an equivariant setting. Given a reductive group $G$ over $\R$ acting on an affine $\R$-variety $V$, we consider the induced dual action on the coordinate ring $\R[V]$ and on the linear dual space of $\R[V]$. In this setting, given an invariant closed semialgebraic subset $K$ of $V(\R)$, we study the problem of representation of invariant nonnegative polynomials on $K$ by invariant sums of squares, and the closely related problem of representation of invariant linear functionals on $\R[V]$ by invariant measures supported on $K$. To this end, we analyse the relation between quadratic modules of $\R[V]$ and associated quadratic modules of the (finitely generated) subring $\R[V]^G$ of invariant polynomials. We apply our results to investigate the finite solvability of an equivariant version of the multidimensional $K$-moment problem. Most of our results are specific to the case where the group $G(\R)$ is compact.
description: 28 pages, 3 figures
Technological changes and clerical job distribution in Canada, 1911-1971
Creators: name: Adjebeng-Asem, Selina
Publisher: name: University of British Columbia
Year: 2010

description: The two major concerns of this paper are: a) clerical job distribution in Canada for the 1911 - 1971 period; and b) technological changes in office equipment for the same period. The clerical occupation is an important occupational category, particularly for women, in Canada. One-third of all working Canadian women are included in this occupational category. On the other hand, the effects of technological changes on employment is an issue that attracts a wide variety of audiences: economists, academics, labour organizers and governments, to name a few. This thesis undertakes to assess the effects of technological changes in the office on the clerical job distribution for the 1911 - 1971 period. The assessment is done with a) an analysis of historical data based on the 1911 - 1971 census of Canada; b) content analysis of the Financial Post of the same period; c) data on business machines from Burroughs Business Machines Ltd.; d) Prescribed Textbooks Guide for B.C. High School Commerce; and e) existing literature and material in the field. The thesis begins with a brief introduction of the problem to be studied. Then the concepts to be used are clarified, and the methods briefly outlined. Chapter I deals with the organization of office work for the 60-year period and how this has been affected by technological changes in office equipment. The organization of office work is divided into three arbitrary periods, the old office 1911 - 1920; the transitional office 1920 -1950; and the modern office 1950 - 1971. Chapter II deals mainly with office technology: what it was in the old office, and the functions it performed. These are then compared with the same factors in the modern office. New office technology which has developed within the period and its effects on office organization is also discussed. Chapter III analyses the effects of these technological developments on the distribution of clerical jobs. This discussion is done in relation to the war and post-war pressures, contradictions in the Canadian economy and occupational segregation in Canadian society. Then, the implications of the analysis for the feminist movement in Canada is briefly suggested. The thesis is concluded with the discussion of the part that technological changes in conjunction with ideology (sex typing or occupational segregation) and economic strains play on the clerical job distribution. Then, some suggestions for further research are outlined.
On submanifolds with tamed second fundamental form
Creators: name: Bessa, G. Pacelli
name: Costa, M. Silvana
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58C40, 53C42

description: We show that a complete submanifold $M$ with tamed second fundamental form in a complete Riemannian manifold $N$ with sectional curvature $K_{N}\leq κ\leq 0$ are proper, (compact if $N$ is compact). In addition, if $N$ is Hadamard then $M$ has finite topology. We also show that the fundamental tone is an obstruction for a Riemannian manifold to be realized as submanifold with tamed second fundamental form of a Hadamard manifold with sectional curvature bounded below.
description: 10 pages
Geographic diversity in academic publishing: could all voices be heard? /Diversidad geográfica en la publicación académica: pueden oirse todas las voces?
Creators: name: Rivera, Barbara
Publisher: name: Zenodo
Year: 2021
Subjects: OIAR
Open Science

description: A partir de la edición de revistas, repensaremos, desde Latinoamérica, qué se entiende por “internacional” en la publicación académica.
description: Primary funding was provided by the Social Science and Humanities Research Council of Canada (SSHRC), with addition financial and in-kind support provided by Eclac, Force11, and the Sloan Foundation through the Reimagining Educational Practices for Open (REPO) project.
КАЧЕСТВО  ПИТЬЕВОЙ ВОДЫ СИСТЕМ ЦЕНТРАЛИЗОВАННОГО ВОДОСНАБЖЕНИЯ КАШКАДАРЬИНСКОЙ ОБЛАСТИ
Creators: name: Искандарова, Ш.Т.
name: Усманов, И.А.
name: Хасанова, М.И.
Publisher: name: Zenodo
Year: 2025

description: Статья посвящена гигиенической оценке качества питьевой воды систем централизованного водоснабжения населения Кашкадарьинской области. По микробиологическим и органолептическим показателям питьевая вода изученных районов не соответствует требованиям гигиенического стандарта, за исключением Яккабагского, Китабского и Шахрисабзского районов, использующих для водоснабжения подземные воды. Показатели общей минерализации, хлоридов, сульфатов и общей жесткости питьевой воды не выходят за пределы нормативных значений. Результаты анкетного опроса выявили, что основные жалобы населения связаны с перебоями подачи водопроводной воды и наличием в питьевой воде запаха и привкуса.
Why Does a Kronecker Model Result in Misleading Capacity Estimates?
Creators: name: Raghavan, Vasanthan
name: Kotecha, Jayesh H.
name: Sayeed, Akbar M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Many recent works that study the performance of multi-input multi-output (MIMO) systems in practice assume a Kronecker model where the variances of the channel entries, upon decomposition on to the transmit and the receive eigen-bases, admit a separable form. Measurement campaigns, however, show that the Kronecker model results in poor estimates for capacity. Motivated by these observations, a channel model that does not impose a separable structure has been recently proposed and shown to fit the capacity of measured channels better. In this work, we show that this recently proposed modeling framework can be viewed as a natural consequence of channel decomposition on to its canonical coordinates, the transmit and/or the receive eigen-bases. Using tools from random matrix theory, we then establish the theoretical basis behind the Kronecker mismatch at the low- and the high-SNR extremes: 1) Sparsity of the dominant statistical degrees of freedom (DoF) in the true channel at the low-SNR extreme, and 2) Non-regularity of the sparsity structure (disparities in the distribution of the DoF across the rows and the columns) at the high-SNR extreme.
description: 39 pages, 5 figures, under review with IEEE Trans. Inform. Theory
Flavon Inflation
Creators: name: Antusch, S.
name: King, S. F.
name: Malinsky, M.
name: Velasco-Sevilla, L.
name: Zavala, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an entirely new class of particle physics models of inflation based on the phase transition associated with the spontaneous breaking of family symmetry responsible for the generation of the effective quark and lepton Yukawa couplings. We show that the Higgs fields responsible for the breaking of family symmetry, called flavons, are natural candidates for the inflaton field in new inflation, or the waterfall fields in hybrid inflation. This opens up a rich vein of possibilities for inflation, all linked to the physics of flavour, with interesting cosmological and phenomenological implications. Out of these, we discuss two examples which realise flavon inflation: a model of new inflation based on the discrete non-Abelian family symmetry group A_{4} or Delta_{27}, and a model of hybrid inflation embedded in an existing flavour model with a continuous SU(3) family symmetry. With the inflation scale and family symmetry breaking scale below the Grand Unification Theory (GUT) scale, these classes of models are free of the monopole (and similar) problems which are often associated with the GUT phase transition.
description: 12 pages, 3 figures. References added. Matches published version
An Energy-Based Comparison of Long-Hop and Short-Hop Routing in MIMO Networks
Creators: name: Lo, Caleb K.
name: Vishwanath, Sriram
name: Heath, Robert W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper considers the problem of selecting either routes that consist of long hops or routes that consist of short hops in a network of multiple-antenna nodes, where each transmitting node employs spatial multiplexing. This distance-dependent route selection problem is approached from the viewpoint of energy efficiency, where a route is selected with the objective of minimizing the transmission energy consumed while satisfying a target outage criterion at the final destination. Deterministic line networks and two-dimensional random networks are considered. It is shown that when 1) the number of hops traversed between the source and destination grows large or 2) when the target success probability approaches one or 3) when the number of transmit and/or receive antennas grows large, short-hop routing requires less energy than long-hop routing. It is also shown that if both routing strategies are subject to the same delay constraint, long-hop routing requires less energy than short-hop routing as the target success probability approaches one. In addition, numerical analysis indicates that given loose outage constraints, only a small number of transmit antennas are needed for short-hop routing to have its maximum advantage over long-hop routing, while given stringent outage constraints, the advantage of short-hop over long-hop routing always increases with additional transmit antennas.
description: 27 pages, 12 figures, submitted to IEEE Transactions on Vehicular Technology in March 2009, revised in July 2009
SDSS J1059+4251, a highly magnified z ~ 2.8 star-forming galaxy: ESI observations of the rest-frame UV spectrum
Creators: name: Citro, Annalisa
name: Erb, Dawn K.
name: Pettini, Max
name: Auger, Matthew W.
name: Becker, George D.
name: James, Bethan L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Detailed analyses of high-redshift galaxies are challenging due to their faintness, but this difficulty can be overcome with gravitational lensing, in which the magnification of the flux enables high signal-to-noise ratio (S/N) spectroscopy. We present the rest-frame ultraviolet (UV) Keck Echellette Spectrograph and Imager (ESI) spectrum of the newly discovered z = 2.79 lensed galaxy SDSS J1059+4251. With an observed magnitude F814W = 18.8 and a magnification factor μ= 31 \pm 3, J1059+4251 is both highly magnified and intrinsically luminous, about two magnitudes brighter than M* at z ~ 2-3. With stellar mass M* = (3.22 \pm 0.20) \times 10^10 M_sun, UV star formation rate SFR=50 \pm 7 M_sun yr^-1, and stellar metallicity Z*~ 0.15-0.5 Z_sun, J1059+4251 is typical of bright star-forming galaxies at similar redshifts. Thanks to the high S/N and the spectral resolution of the ESI spectrum, we are able to separate the interstellar and stellar features and derive properties that would be inaccessible without the aid of the lensing. We find evidence of a gas outflow with speeds up to -1000 km s^-1, and of an inflow that is probably due to accreting material seen along a favorable line of sight. We measure relative elemental abundances from the interstellar absorption lines and find that alpha-capture elements are overabundant compared to iron-peak elements, suggestive of rapid star formation. However, this trend may also be affected by dust depletion. Thanks to the high data quality, our results represent a reliable step forward in the characterization of typical galaxies at early cosmic epochs.
description: 23 pages, 13 figures, Accepted for publication in ApJ
Secondary suites : housing resource or problem, the Vancouver case
Creators: name: Cheng, Lai-Sum Lisa
Publisher: name: University of British Columbia
Year: 2010

description: Secondary suites in single family houses have remained an illegal but prevalent form of housing in Vancouver since 19 56 despite a number of policies implemented to deal with this issue. In the absence of a policy framework it has been unclear what the impact of these policies have been or how they should be evaluated. This study presents an analytical framework through which the issue can be better understood before policy options are explored and analyzed. The framework consists of, firstly, an analysis of the role of secondary suites in the Vancouver housing scene; secondly, an assessment of the secondary suite "problem" in Vancouver and how it has been dealt with; thirdly, an analysis of incidence of effects of the secondary suite arrangement; and, finally, a policy analysis model based on the preceding findings. The sources of information include published reports and statistics, classified advertisements that are tabulated, interviews with informants who have been involved in dealing with the secondary suite issue as well as informal interviews with about 50 people directly involved in a secondary suite arrangement. Based on the understanding of the secondary suite issue, two basic policy orientations are identified. The first one is to reduce the number of secondary suites in the City while the second one is to change the suites into an acceptable form of housing. The alternative means to implement these policies are identified and the correlation between these means, the functions they can serve and the effect they have on the City's housing situation and the secondary suite issue are outlined. It is hoped that the findings will be useful to planners in formulating more effective policies and to decision-makers in deciding on the most appropriate solution for the City's secondary suite issue.
Avalanches, branching ratios, and clustering of attractors in Random Boolean Networks and in the segment polarity network of \emph{Drosophila}
Creators: name: Berdahl, Andrew
name: Shreim, Amer
name: Sood, Vishal
name: Davidsen, Joern
name: Paczuski, Maya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We discuss basic features of emergent complexity in dynamical systems far from equilibrium by focusing on the network structure of their state space. We start by measuring the distributions of avalanche and transient times in Random Boolean Networks (RBNs) and in the \emph{Drosophila} polarity network by exact enumeration. A transient time is the duration of the transient from a starting state to an attractor. An avalanche is a special transient which starts as single Boolean element perturbation of an attractor state. Significant differences at short times between the avalanche and the transient times for RBNs with small connectivity $K$ -- compared to the number of elements $N$ -- indicate that attractors tend to cluster in configuration space. In addition, one bit flip has a non-negligible chance to put an attractor state directly onto another attractor. This clustering is also present in the segment polarity gene network of \emph{Drosophila melanogaster}, suggesting that this may be a robust feature of biological regulatory networks. We also define and measure a branching ratio for the state space networks and find evidence for a new time scale that diverges roughly linearly with $N$ for $2\leq K \ll N$. Analytic arguments show that this time scale does not appear in the random map nor can the random map exhibit clustering of attractors. We further show that for K=2 the branching ratio exhibits the largest variation with distance from the attractor compared to other values of $K$ and that the avalanche durations exhibit no characteristic scale within our statistical resolution. Hence, we propose that the branching ratio and the avalanche duration are new indicators for scale-free behavior that may or may not be found simultaneously with other indicators of emergent complexity in extended, deterministic dynamical systems.
Alkylidene malonates and acetoacetates as intermediates for the preparation of bioactive molecules
Alchilidene malonati e acetoacetati come intermedi per la preparazione di molecole bioattive
Creators: name: Viola, Angelo <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: CHIM/06 Chimica organica

description: In this thesis we investigated the versatility and the potential applications of different kinds of alkylidene malonates, acetoacetates, malonamides and acetoacetoamides. Our research group devoted great attention to this kind of compounds since alkylidenes can be considered important intermediates in the synthesis of several scaffolds, to be inserted into molecules of potential biological and pharmaceutical interest. The increasing use of alkylidenes is due to their ability to react as unsaturated electrophiles and to the possibility to exploit them as intermediates for the introduction of  different kind of functionalities.The preparation of alkylidene malonates, acetoacetates, malonamides and acetoacetoamides is presented in chapter 1.
This section deals with different preparation methods of alkylidenes that we developed during the last few years and to the technologies involved for each synthetic protocol. The reactivity that allowed to use the alkylidenes as intermediates in the synthesis  of scaffolds for biologically active compounds is shown in chapter 2. In particular, we will discuss the most important reactions used to obtain the desired molecules, and we will focus on the most interesting aspects of these latter ones.
Finally, chapter 3 will illustrate the potential applications and the related syntheses of potential bioactive compounds. The synthesized molecules find application in several fields and for this reason we considered each class of compounds in its related branch of interest.
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Creators: name: Ð¡ÐµÑÑÐºÐ¾Ð², ÐÐ²Ð³ÐµÐ½Ð¸Ð¹
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ Ð¡ÐÐ±ÐÐ¢Ð£
Year: 1998
Subjects: Ð¡Ð²Ð°ÑÐºÐ°

description: ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ¾Ð² Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 552700 - Ð­Ð½ÐµÑÐ³Ð¾Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ, Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ð° ÐÐ-06 "ÐÐ°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ Ð¸ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²" Ð¸ Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐµÐ¼Ñ ÑÑÐµÐ±Ð½Ð¾Ð¼Ñ Ð¿Ð»Ð°Ð½Ñ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² III ÐºÑÑÑÐ° Ð­Ð½ÐÐ¤, Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ðµ "Ð¢ÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²" ÑÐ¸ÐºÐ»Ð° Ð¾Ð±ÑÐµÐ¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½ÑÑ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½ (Ð¿Ð¾Ð·. 25). Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ°, Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÐµÐ½Ð½ÑÐµ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð¸ Ð¾Ð±Ð»Ð°ÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ²Ð°ÑÐºÐ¸. ÐÐ»Ð°Ð²Ð½Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÐµÐ½Ð¾ Ð¿ÑÐ°Ð²Ð¸Ð»Ð°Ð¼ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ ÑÐµÑÑÐµÐ¶ÐµÐ¹ ÑÐ²Ð°ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹, Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐ¼ Ð²Ð¸Ð´Ð°Ð¼ Ð±ÑÐ°ÐºÐ° Ð¸ ÑÐ¿Ð¾ÑÐ¾Ð±Ð°Ð¼ ÐµÐ³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ, ÑÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð¸ Ð¿ÑÐµÐ´Ð¾ÑÐ²ÑÐ°ÑÐµÐ½Ð¸Ñ. ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð·Ð½ÐµÑÐ³Ð¾Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÐºÐ¾-Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÐºÑÐ»ÑÑÐµÑÐ¾Ð², Ð¸Ð·ÑÑÐ°ÑÑÐ¸Ñ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ "Ð¢ÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²".
description: ÐÐµÑÐ°ÑÐ°ÐµÑÑÑ Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ´Ð°ÐºÑÐ¸Ð¾Ð½Ð½Ð¾-Ð¸Ð·Ð´Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐ¾Ð²ÐµÑÐ° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¾Ð³Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ°.
Superdisks and the structural asymmetry of radio galaxies
Creators: name: Gopal-Krishna
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a sample of 16 radio galaxies, each of which is characterized by a wide, elongated emission gap with fairly sharp and straight edges between the two radio lobes. This particular subset of the 'superdisk' radio galaxies is chosen because of a highly asymmetric location of the host elliptical galaxy relative to the gap's central axis. In addition to posing a considerable challenge to the existing models, such a morphology also means that the two jets traverse highly unequal distances through the superdisk material. One thus has a possibility to directly investigate if the marked asymmetry between the two jets' interaction with the (much denser) ambient medium, during their propagation, has a significant import for the brightness of the hotspot forming near each jet's extremity. We also propose a new explanation for the formation of superdisks through the merger of a smaller elliptical galaxy with the massive host, in which the gas attached to the infalling galaxy deposits its angular momentum into the host's circumgalactic gas, thereby causing it to flatten into a fat pancake, or superdisk. The asymmetric location of the host galaxy can be assisted by the kick imparted to it during the merger. We also suggest a physical link between these radio galaxies and those with X-shaped and Z-symmetric radio lobes, commonly believed to arise from mergers of two galactic nuclei, each harboring a supermassive black hole.
description: 21 pages, 7 figures, to appear in New Astronomy, uses elsart.cls
Electron spin decoherence of single Nitrogen-Vacancy defects in diamond
Creators: name: Maze, J. R.
name: Taylor, J. M.
name: Lukin, M. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a theoretical analysis of the electron spin decoherence in single Nitrogen-Vacancy defects in ultra-pure diamond. The electron spin decoherence is due to the interactions with Carbon-13 nuclear spins in the diamond lattice. Our approach takes advantage of the low concentration (1.1%) of Carbon-13 and their random distribution in the diamond lattice by an algorithmic aggregation of spins into small, strongly interacting groups. By making use of this \emph{disjoint cluster} approach, we demonstrate a possibility of non-trival dynamics of the electron spin that can not be described by a single time constant. This dependance is caused by a strong coupling between the electron and few nuclei and results, in particular, in a substantial echo signal even at microsecond time scales. Our results are in good agreement with recent experimental observations.
Tinthiini Le Cerf 1917
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Sesiidae

description: Tinthiini 365 * R Zenodoxus canescens Edwards, 1881 Oct – – G T: Eichlin and Duckworth (1988) L: None C: CNC 366 * R Zenodoxus sidalceae Engelhardt, 1946 E Aug – – G T: Eichlin and Duckworth (1988) L: Eichlin and Duckworth (1988) C: CNC
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 91, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Eichlin TD, Duckworth WD (1988) Sesioidea: Sessiidae. Fasc. 5.1. In: Dominick RB, Ferguson DC, Franclemont JG, Hodges RW, Munroe EG (Eds) The moths of America north of Mexico. Wedge Entomological Research Foundation, Washington, D. C., 176 pp.", "Engelhardt GP (1946) Th e North American clear-wing moths of the family Aegeriidae. Bulletin of the United States National Museum 190: 1 - 22."]}
The Incompressible Navier-Stokes Limit of the Boltzmann Equation for Hard Cutoff Potentials
Creators: name: Golse, François
name: Saint-Raymond, Laure
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q35; 35Q30, 82C40

description: The present paper proves that all limit points of sequences of renormalized solutions of the Boltzmann equation in the limit of small, asymptotically equivalent Mach and Knudsen numbers are governed by Leray solutions of the Navier-Stokes equations. This convergence result holds for hard cutoff potentials in the sense of H. Grad, and therefore completes earlier results by the same authors [Invent. Math. 155, 81-161(2004)] for Maxwell molecules.
description: 56 pages, LaTeX, a few typos have been corrected, a few remarks added, one uncited reference removed
Doctoral thesis recital (clarinet)
Creators: name: Lim, Jiyeon
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Clarinet music
Clarinet and piano music
Sonatas (Clarinet and piano)

description: Lied / Berio -- Time pieces : for clarinet and piano, op. 43 / Muczynski -- Sonata for B-flat clarinet and piano, op. 94 / Prokofiev
title: Pasaniapilz :
title: Richtlinien für die Durchführung der Prüfung auf Unterscheidbarkeit, Homogenität und Beständigkeit.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Plants
New Varieties of Plants
Shiitake

description: Zweck dieser Richtlinien („Prüfungsrichtlinien“) ist es, die in der Allgemeinen Einführung (Dokument TG/1/3) und deren verbundenen TGP-Dokumenten enthaltenen Grundsätze in detaillierte praktische Anleitung für die harmonisierte Prüfung der Unterscheidbarkeit, der Homogenität und der Beständigkeit (DUS) umzusetzen und insbesondere geeignete Merkmale für die DUS-Prüfung und die Erstellung harmonisierter Sortenbeschreibungen auszuweisen.
O debate sobre o Sistema Previdencial de Segurança Social: reflexões de titulares da pasta
Creators: name: Carvalho da Silva, Manuel
name: Bagão Félix, António
name: Vieira da Silva, José A.
name: Silva Peneda, José
name: Palma Ramalho, Maria do Rosário
name: Pedroso, Paulo
Publisher: name: Zenodo
Year: 2025
Subjects: Segurança Social; sustentabilidade da Segurança Social; Livro Verde sobre a Sustentabilidade do Sistema Previdencial; pensões; demografia; emprego e mercado de trabalho; Fundo de Estabilização Financeira da Segurança Social
Social Security; Social Security sustainability; Green Book on the Sustainability of the Contributory System; pensions; demography; employment and labour market; Social Security Reserve Fund (FEFSS)

description: Resumo:

A sustentabilidade da Segurança Social, o modelo de financiamento do seu Sistema Previdencial, ou a adequação presente e futura das pensões às necessidades dos pensionistas são temas que ganharam um novo protagonismo em Portugal nos anos recentes. Esse protagonismo foi espoletado pela constituição da Comissão para a Sustentabilidade da Segurança Social e pela publicação dos resultados dos trabalhos desse grupo no Livro Verde sobre a Sustentabilidade do Sistema Previdencial. Este ebook pretende contribuir para essa reflexão e enriquecê-la com a análise crítica de quatro ex-ministros do Trabalho, Solidariedade e Segurança Social e da atual Ministra responsável pela pasta. Em cinco textos sintéticos estes protagonistas apontam pistas relevantes para se analisar de forma integrada o Sistema Previdencial de Segurança Social – em particular o sistema de pensões –, a pertinência e os riscos que acompanham as propostas de alteração do sistema e propõem medidas que qualifiquem e garantam sustentabilidade ao sistema de Segurança Social.

AbstractThe sustainability of Social Security, the financing model of its Contributory System, or the present and future adequacy of pensions to the needs of pensioners are topics that have taken on prominence in Portugal in recent years. This protagonism was triggered by the creation of the Commission for the Sustainability of Social Security and the publication of the results of its work within the scope of Green Book on the Sustainability of the Social Security System. This ebook aims to contribute to this discussion and enrich it with the critical analysis of four former ministers of Labor, Solidarity and Social Security and of the current Minister. In five synthetic texts, these protagonists point out relevant clues to analyze the Social Security Contributory System in a comprehensive perspective – namely, the pension system –, the relevance and risks of some policies and propose measures that enhance and guarantee sustainability to the Social Security system.
Doctoral thesis recital (clarinet)
Creators: name: You, Juyong
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Sonatas (Clarinet and piano)
Clarinet music
Clarinet and piano music, Arranged

description: Sonata or clarinet and piano / Copland -- Dancing solo / Larsen -- Concerto no. 1 / Molter -- Fantasie for solo clarinet / Widmann
Quantum Data Compression and Relative Entropy Revisited
Creators: name: Kaltchenko, Alexei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: B. Schumacher and M. Westmoreland have established a quantum analog of a well-known classical information theory result on a role of relative entropy as a measure of non-optimality in (classical) data compression. In this paper, we provide an alternative, simple and constructive proof of this result by constructing quantum compression codes (schemes) from classical data compression codes. Moreover, as the quantum data compression/coding task can be effectively reduced to a (quasi-)classical one, we show that relevant results from classical information theory and data compression become applicable and therefore can be extended to the quantum domain.
description: 7 pages, no figures, minor revision
Evidence for Unconventional Superconductivity in Arsenic-Free Iron-Based Superconductor FeSe : A ^77Se-NMR Study
Creators: name: Kotegawa, H.
name: Masaki, S.
name: Awai, Y.
name: Tou, H.
name: Mizuguchi, Y.
name: Takano, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the results of $^{77}$Se--nuclear magnetic resonance (NMR) in $α$-FeSe, which exhibits a similar crystal structure to the LaFeAsO$_{1-x}$F$_x$ superconductor and shows superconductivity at 8 K. The nuclear-spin lattice relaxation rate $1/T_1$ shows $T^3$ behavior below the superconducting transition temperature $T_c$ without a coherence peak. The $T_1T=$ const. behavior, indicative of the Fermi liquid state, can be seen in a wide temperature range above $T_c$. The superconductivity in $α$-FeSe is also an unconventional one as well as LaFeAsO$_{1-x}$F$_x$ and related materials. The FeAs layer is not essential for the occurrence of the unconventional superconductivity.
description: 4pages, 4figures, to be published in J. Phys. Soc. Jpn. 77 No.11 (2008)
Branching Ratios and Polarization in B-> VV,VA,AA Decays
Creators: name: Cheng, Hai-Yang
name: Yang, Kwei-Chou
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a detailed study of charmless two-body B decays into final states involving two vector mesons (VV) or two axial-vector mesons (AA) or one vector and one axial-vector meson (VA), within the framework of QCD factorization, where $A$ is either a $^3P_1$ or $^1P_1$ axial-vector meson. The main results are as follows. (i) In the presence of NLO nonfactorizable corrections, effective Wilson coefficients $a_i^h$ are helicity dependent. For some penguin-dominated modes, the constructive (destructive) interference in the negative-helicity (longitudinal-helicity) amplitude of the $B\to VV$ decay will render the former comparable to the latter and push up the transverse polarization. (ii) In QCD factorization, the transverse polarization fraction can be large for penguin-dominated charmless $VV$ modes by allowing for sizable penguin annihilation contributions. (iii) Using the measured $\bar K^{*0}ρ^-$ channel as an input, we predict the branching ratios and polarization fractions for other $\ov B\to \bar K^*ρ$ decays. (iv) The smallness of the axial-vector decay constant of the $^1P_1$ axial vector meson can be tested by measuring various $b_1ρ$ modes to see if $Γ(\bar B^0\to b_1^-ρ^+)\ll Γ(\bar B^0\to b_1^+ρ^-)$ and $Γ(B^-\to b_1^-ρ^0)\ll Γ(B^-\to b_1^0ρ^-)$. (v) For the penguin-dominated modes $a_1K^*$ and $b_1K^*$, it is found that the former are dominated by transverse polarization amplitudes, whereas the latter are governed by longitudinal polarization states.
description: 58 pages, 2 figures. The charm quark mass in the penguin loop corrections is changed to the pole mass one. Fig. 1 and all the numerical results in Tables IX-XI and the content are revised accordingly. Version to appear in PRD