cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Moser Lemma in Generalized Complex Geometry
Creators: name: Stienon, Mathieu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: We show how the classical Moser Lemma from symplectic geometry extends to generalized complex structures (GCS) on arbitrary Courant algebroids. For this, we extend the notion of Lie derivative to sections of the tensor bundle $(\otimes^i E)\otimes(\otimes^j E^*)$ with respect to sections of the Courant algebroid $E$ using the Dorfman bracket. We then give a cohomological interpretation of the existence of one-parameter families of GCS on $E$ and of flows of automorphims of $E$ identifying all GCS of such a family. In the particular cases of symplectic, we recover the results of Moser. Finally, we give a criterion to detect the local triviality of arbitrary GCS which generalizes the Darboux-Weinstein theorem.
description: 18 pages
Lumps in the throat
Creators: name: Dasgupta, Keshav
name: Firouzjahi, Hassan
name: Gwyn, Rhiannon
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study classical lump solutions in a warped throat where brane inflation takes place. Some of the solitonic or lump solutions that we study here are the (p,q) cosmic strings and their junctions, cosmic necklaces and semi-local strings and generic semi-local defects. We show how various wrapping modes of D3-branes may be used to study all these defects in one interpolating set-up. Our construction allows us to study (p,q)-string junctions in curved backgrounds and in the presence of non-trivial RR fluxes. We extend the junction construction to allow for the possibility of cosmic necklaces, and show how these new lump solutions form a consistent picture in the inflationary brane models. We also give a generic construction of semi-local defects in these backgrounds, and argue that our construction encompasses all possible constructions of semi-local defects with any global symmetries. The cosmological implications of these configurations are briefly studied.
description: JHEP.cls, 31 pages, 5 .eps figures; v2: some comments and references added; v3: some typos corrected and a reference added. Final version to appear in JHEP
A Comparison of the Personality Characteristics of Highly Successful, Moderately Successful, and Unsuccessful High School Basketball Coaches as Measured by the Cattell Sixteen Personality Factor Questionnaire
Creators: name: McCarthy, Eugene F.
Publisher: name: Digital Repository at the University of Maryland
Year: 1973

description: This study compared the personality characteristics
of successful, moderately successful, and unsuccessful high
school basketball coaches. Winning percentage was the criterion
chosen to measure success. The subjects were 52
varsity high school basketball coaches from Anna Arundel,
Baltimore, Montgomery and Prince Georges Counties public
schools. Each coach was administered individually the
Cattell Sixteen Personality Factor Questionnaire Form A at
their respective schools.
The coaches were grouped into highly successful, moderately
successful, and unsuccessful categories according
to their cumulative winning percentage in their last three
years of varsity high school basketball coaching. To be
highly successful, the coaches needed a winning percentage
of .60 or greater, for moderately successful .41-.59, and
for unsuccessful .40 or lass.
A one-way analysis of variance was computed to determine
if any significant differences existed between the
three groups on any of the twenty personality factors
measured.
The results indicated that there are no significant
differences on any of the twenty personality factors measured
for the three groups.
Within the limitations of this study, it would appear
reasonable to conclude that there is no difference between
the personalities of the highly successful, moderately
successful, or the unsuccessful coaches.
Variability of ultraluminous X-ray sources in the Cartwheel Ring
Creators: name: Wolter, A.
name: Trinchieri, G.
name: Colpi, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Cartwheel is one of the most outstanding examples of a dynamically perturbed galaxy where star formation is occurring inside the ring--like structure. In previous studies with Chandra, we detected 16 Ultra Luminous X-ray sources lying along the southern portion of the ring. Their Luminosity Function is consistent with them being in the high luminosity tail of the High Mass X-ray Binaries distribution, but with one exception: source N.10. This source, detected with Chandra at L_X = 1.x 10^(41) ergs, is among the brightest non--nuclear sources ever seen in external galaxies. Recently, we have observed the Cartwheel with XMM-Newton in two epochs, six months apart. After having been at its brightest for at least 4 years, the source has dimmed by at least a factor of two between the two observations. This fact implies that the source is compact in nature. Given its extreme isotropic luminosity, there is the possibility that the source hosts an accreting intermediate--mass black hole. Other sources in the ring vary in flux between the different datasets. We discuss our findings in the context of ULX models.
description: 4 pages, 4 figures, IAU S238: Black Holes: from Stars to Galaxies -- across the Range of Masses
Η Ποιοτική Μεθοδολογία Έρευνας στη Συμπεριφορά Καταναλωτή
Creators: name: Ποδογοριανιώτη, Χρυσάνθη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Συμπεριφορά Καταναλωτή
Ποιοτική Μεθοδολογία
Βιβλιογραφική Ανασκόπηση
Consumer Behavior
Qualitative Research
Literature Review

description: Η παρούσα εργασία αποτελεί, μια ανασκόπηση της βιβλιογραφίας (literature review) για την ποιοτική μεθοδολογία έρευνας – qualitative research και όπως αυτή εφαρμόζεται στο γνωστικό αντικείμενο της συμπεριφοράς καταναλωτή. Η έρευνα βασίζεται στην αρθρογραφία των τελευταίων 11 χρόνων (2001-2012), όπου επιλέγονται άρθρα από το εγκεκριμένο, στον κλάδο του περιοδικού, Journal of Consumer Research, που εφαρμόζουν την ποιοτική έρευνα Στη συνέχεια, τα άρθρα αναλύονται σε ένα αρχείο Excel, όπου τα χαρακτηριστικά τους ταξινομούνται σε ειδικά διαμορφωμένες στήλες. Στόχος της έρευνας είναι να αναδείξει τις μεθοδολογίες που εφαρμόστηκαν περισσότερο από τους ερευνητές, τον τρόπο εφαρμογής και ανάλυσής τους, αλλά και την πληρότητά τους.
description: This research, is a literature review. Studies the implication of qualitative research in articles that examines consumer behavior. The journal “Journal of Consumer Research”, is used as basic source of articles. All articles from 2001 to 2012 examined, for the use qualitative research for their research objectives. The articles that found to satisfy this criteria, organized and analyzed in Excel, for the way qualitative methods where implied. The goal of this study is to present implications of qualitative research and to investigate if is a state of the art method.
Sur les exposants de Lyapounov des applications meromorphes
Creators: name: de Thelin, Henry
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 37Fxx; 32H50; 58F15

description: Let f be a dominating meromorphic self-map of a compact Kahler manifold. We give an inequality for the Lyapounov exponents of some ergodic measures of f using the metric entropy and the dynamical degrees of f. We deduce the hyperbolicity of some measures.
description: 27 pages, paper in french, final version: to appear in Inventiones Math
Η ποινική ευθύνη των νομικών προσώπων
Creators: name: Κοπανίδης, Απόστολος Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Ποινική
Ευθύνη
Νομικών προσώπων
Criminal
Liability
Corporation

description: Σκοπός της διατριβής ήταν η μελέτη της δυνατότητας αναγνώρισης ποινικής ευθύνης στα νομικά πρόσωπα στην ελληνική έννομη τάξη. εξετάστηκε η συμφωνία της θεώρησης αυτής με βασικές αρχές του ποινικού δόγματος σε συνδυασμό με την αρχή της αξιοπρέπειας του ανθρώπου. εξετάστηκε η δυνατότητα πράξης του νομικού προσώπου κατά την ποινική έννοια. Εξετάστηκε η ύπαρξη ενοχής και το εάν είναι δυνατός ο καταλογισμός σε αυτήν. Τέλος, το ζήτημα των ποινών που δύναται να επιβληθούν, σε σχέση με τις παραδοσιακές ποινές του ποινικού δικαίου.
description: The aim of the present thesis was the study of the possibility to identify criminal liability to corporations in the greek legal system . It was the consistency of this visa with basic principles of the criminal dogma in conjunction with the principle of dignity of man . Consideration was given to the possibility of a corporate to act in a criminal sense. also if it is possible to recognise guilt and whether it is charged to it. finally, the issue of the penalties which may be imposed to corporates, in comparison with traditional punishments of criminal law.
Void Traversal for Guaranteed Delivery in Geometric Routing
Creators: name: Nesterenko, Mikhail
name: Vora, Adnan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Operating Systems (cs.OS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: C.2.2; C.2.1; F.2.2

description: Geometric routing algorithms like GFG (GPSR) are lightweight, scalable algorithms that can be used to route in resource-constrained ad hoc wireless networks. However, such algorithms run on planar graphs only. To efficiently construct a planar graph, they require a unit-disk graph. To make the topology unit-disk, the maximum link length in the network has to be selected conservatively. In practical setting this leads to the designs where the node density is rather high. Moreover, the network diameter of a planar subgraph is greater than the original graph, which leads to longer routes. To remedy this problem, we propose a void traversal algorithm that works on arbitrary geometric graphs. We describe how to use this algorithm for geometric routing with guaranteed delivery and compare its performance with GFG.
Supernovae Constraints on Cosmological Density Parameter and Cosmic Topology
Creators: name: Reboucas, M. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We illustrate the constraints that a possible detection of a non-trivial spatial topology may place on the cosmological density parameters by considering the $Λ$CDM model Poincaré dodecahedal space (PDS) topology as a circles-in-the-sky detectable topology. To this end we reanalyze the type Ia supernovae constraints on the density parameter plane $Ω_k$--$Ω_Λ$ and show that a circles-in-the-sky detectable PDS topology gives rise to important constraints on this parameters plane.
description: 5 pages, 2 figs. To appear in the Proc. of 11th Marcel Grossmann Meeting on General Relativity. Latex2e, World Scientific proc. style files
TELESTO: A Graph Neural Network Model for Anomaly Classification in Cloud Services
Creators: name: Scheinert, Dominik
name: Acker, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Deployment, operation and maintenance of large IT systems becomes increasingly complex and puts human experts under extreme stress when problems occur. Therefore, utilization of machine learning (ML) and artificial intelligence (AI) is applied on IT system operation and maintenance - summarized in the term AIOps. One specific direction aims at the recognition of re-occurring anomaly types to enable remediation automation. However, due to IT system specific properties, especially their frequent changes (e.g. software updates, reconfiguration or hardware modernization), recognition of reoccurring anomaly types is challenging. Current methods mainly assume a static dimensionality of provided data. We propose a method that is invariant to dimensionality changes of given data. Resource metric data such as CPU utilization, allocated memory and others are modelled as multivariate time series. The extraction of temporal and spatial features together with the subsequent anomaly classification is realized by utilizing TELESTO, our novel graph convolutional neural network (GCNN) architecture. The experimental evaluation is conducted in a real-world cloud testbed deployment that is hosting two applications. Classification results of injected anomalies on a cassandra database node show that TELESTO outperforms the alternative GCNNs and achieves an overall classification accuracy of 85.1%. Classification results for the other nodes show accuracy values between 85% and 60%.
description: 12 pages, 2 figures, 4 tables
Discrete transect designs for estimating animal population
Creators: name: Li, Leah Min
Publisher: name: University of British Columbia
Year: 2009

description: When studying the animal population in the forest, one sometimes collects data along a path which is called a transect. To estimate the size of an animal population, one travels along the transects and counts all animals sighted along the route. The goal of this project is to derive estimators of population size and to determine optimal transect designs.
NODAVLAT OLIY TA'LIM MUASSASALARI: YUTUQLAR VA MUAMMOLAR
Creators: name: Nigmatova, Sadoqatxon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada O'zbekistondagi nodavlat oliy ta'lim muassasalarining rivojlanishi, yutuqlari va muammolari tahlil qilingan. Tadqiqot davomida nodavlat OTMlarning paydo bo'lishi, huquqiy asoslari, erishgan yutuqlari va duch kelayotgan qiyinchiliklari o'rganilgan. Shuningdek, nodavlat OTMlarning mamlakat oliy ta'lim tizimidagi o'rni va ahamiyati ham ko'rib chiqilgan. Maqolada mavjud muammolarni hal etish yo'llari va istiqboldagi rivojlanish yo'nalishlari taklif etilgan.
Closed-form solutions for continuous time random walks on finite chains
Creators: name: Flomenbom, Ophir
name: Klafter, Joseph
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Continuous time random walks (CTRW) on finite arbitrarily inhomogeneous chains are studied. By introducing a technique of counting all possible trajectories, we derive closed-form solutions in Laplace space for the Green's function and for the first passage time probability density function (PDF) for nearest neighbor CTRWs in terms of the input waiting time PDFs. These solutions are also the Laplace space solutions of the generalized master equation (GME). Moreover, based on our counting technique, we introduce the adaptor function for expressing higher order propagators (joint PDFs of time-position variables) for CTRWs in terms of Green's functions. Using the derived formulae, an escape problem from a biased chain is considered.
Μαρκοβιανή Ανάλυση του Δομικού Στοιχείου Διάσπασης Γραμμών Παραγωγής με Παραγωγή Ελαττωματικών Προϊόντων
Creators: name: Μουστάκας, Νικόλαος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Μαρκοβιανή Ανάλυση
Διάσπαση
Ελαττωματικά
Markov
Split
Quality Failures

description: Ο αποδοτικός σχεδιασμός των βιομηχανικών συστημάτων απαιτεί, μεταξύ άλλων, τη βελτιστοποίηση της κατανομής του χώρου αποθήκευσης των υπό επεξεργασία προϊόντων ανάμεσα στις μηχανές μιας γραμμής παραγωγής. Ο υπολογισμός της βέλτιστης κατανομής μπορεί να γίνει είτε με προσομοίωση, είτε με μαθηματική ανάλυση του συστήματος. Επειδή όμως η ανάλυση ενός μεγάλου συστήματος είναι πρακτικά αδύνατη, αναπτύχθηκε μια μέθοδος αποσύνθεσης του συστήματος σε μικρότερα δομικά στοιχεία, τα οποία μπορούν να αναλυθούν σχετικά εύκολα. Σκοπός αυτής της εργασίας είναι η ανάλυση ενός τέτοιου δομικού στοιχείου που περιλαμβάνει διάσπαση της γραμμής παραγωγής. Η ανάλυση γίνεται με χρήση μοντέλων Μαρκόβ, και περιλαμβάνει προϊόντα διακριτού και συνεχούς τύπου, ενώ ο χρόνος θεωρείται συνεχής. Η ανάλυση επεκτείνεται σε γραμμές παραγωγής οι οποίες ενδέχεται να παράγουν ελαττωματικά προϊόντα.
description: The efficient designing of an industrial system requires, among other things, the optimization of the distribution of the storage area between the machines of a production line, for the products under process. The calculation of the optimal distribution can be performed either by simulation or by mathematical analysis of the system. However, as the analysis of a large system is practically impossible, a decomposition method was developed in order to divide the system into smaller components, which can be analysed relatively easily. The aim of this thesis is the analysis of such a component, which involves the split of a production line. The analysis is performed using Markov models, and consists of discrete and continuous types of products, while assuming continuous time. The analysis is expanded to production lines which may produce products with quality failures.
New quantum "az+b" groups
Creators: name: Sołtan, P. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L89, 22D25

description: We construct quantum "az+b" groups for new values of the deformation parameter. Along the way we introduce new special functions and study their analytic properties as well as analyze the commutation relations determined by the choice of parameter.
description: uses pstricks
Comparison of models and lattice-gas simulations for Liesegang patterns
Creators: name: Jahnke, Lukas
name: Kantelhardt, Jan W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For more than a century Liesegang patterns -- self-organized, quasi-periodic structures occurring in diffusion-limited chemical reactions with two components -- have been attracting scientists. The pattern formation can be described by four basic empirical laws. In addition to many experiments, several models have been devised to understand the formation of the bands and rings. Here we review the most important models and complement them with detailed three-dimensional lattice-gas simulations. We show how the mean-field predictions can be reconciled with experimental data by a redefinition of the distances suggested by our lattice-gas simulations.
description: 21 pages, 9 figures, accepted for publication in EPJ Special Topics
Optimization on Planning of Trajectory and Control of Autonomous Berthing and Unberthing for the Realistic Port Geometry
Creators: name: Miyauchi, Yoshiki
name: Sawada, Ryohei
name: Akimoto, Youhei
name: Umeda, Naoya
name: Maki, Atsuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: To realize autonomous shipping, autonomous berthing and unberthing are some of the technical challenges. In the past, numerous research have been done on the optimization of trajectory planning of berthing problems. However, these studies assumed only a simple berth and did not consider obstacles. Optimization of trajectory planning on berthing and unberthing in actual ports must consider the spatial constraints and maintain sufficient distance to obstacles. The main contributions of this study are as follows: (i) a collision avoidance algorithm based on the ship domain which has variable size by the ship speed is proposed, to include the spatial constraints to optimization; (ii) the effect of wind disturbance is taken into account to the trajectory planning to make a feasible trajectory based on the capacity limit of actuators; (iii) showing that the optimization method for berthing is also eligible for the unberthing, which has been almost neglected; (iv) waypoints are included to the optimization process, to make optimization easier on practical applications. The authors tested the proposed method on two existing ports. The proposed method performed well on both the berthing and the unberthing problem and optimized the control input and the trajectory while avoiding collision with the complex obstacles.
description: 19 pages, 17 figures, Published on Ocean Engineering
Quantum Particle Swarm Optimization for Electromagnetics
Creators: name: Mikki, Said
name: Kishk, Ahmed A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A new particle swarm optimization (PSO) technique for electromagnetic applications is proposed. The method is based on quantum mechanics rather than the Newtonian rules assumed in all previous versions of PSO, which we refer to as classical PSO. A general procedure is suggested to derive many different versions of the quantum PSO algorithm (QPSO). The QPSO is applied first to linear array antenna synthesis, which is one of the standard problems used by antenna engineers. The performance of the QPSO is compared against an improved version of the classical PSO. The new algorithm outperforms the classical one most of the time in convergence speed and achieves better levels for the cost function. As another application, the algorithm is used to find a set of infinitesimal dipoles that produces the same near and far fields of a circular dielectric resonator antenna (DRA). In addition, the QPSO method is employed to find an equivalent circuit model for the DRA that can be used to predict some interesting parameters like the Q-factor. The QPSO contains only one control parameter that can be tuned easily by trial and error or by suggested simple linear variation. Based on our understanding of the physical background of the method, various explanations of the theoretical aspects of the algorithm are presented.
Ανεργία : ένα σύγχρονο κοινωνικό πρόβλημα: ποιμαντική προσέγγιση
Creators: name: Στεργίου, Αλεξία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Ανεργία
Κοινωνικό φαινόμενο
Ποιμαντική προσέγγιση
Unemployment
Social phenomenon
Pastoral approach

description: Η συγκεκριμένη εργασία περιγράφει τις σύγχρονες διαστάσεις της ανεργίας, αναλύοντας τις κοινωνικές και ψυχολογικές συνέπειες του φαινομένου. Αναφέρεται, επίσης, στην αξία της εργασίας για τον άνθρωπο και τη θεολογική της διάσταση. Τέλος, προτείνει τρόπους με τους οποίους η Ορθόδοξη Χριστιανική Εκκλησία μπορεί να βοηθήσει τους ανέργους.
description: This thesis describes unemployment and its social and psychological consequences. Furthermore, it analyzes the importance of work for the people and its theological dimension. It also suggests ways in which the Orthodox Christian Church can help unemployed people.
Long-Range Order Promotes Charge-Transfer Excitations in Donor/Acceptor Co-Crystals
Creators: name: Guerrini, Michele
name: Valencia, Ana M.
name: Cocchi, Caterina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic and optical properties of doped organic semiconductors are dominated by local interactions between donor and acceptor molecules. However, when such systems are in crystalline form, long-range order competes against short-range couplings. In a first-principles study on three experimentally resolved bulk structures of quaterthiophene doped by (fluorinated) tetracyanoquinodimethane, we demonstrate the crucial role of long-range interactions in donor/acceptor co-crystals. The band structures of the investigated materials exhibit direct band-gaps decreasing in size with increasing amount of F atoms in the acceptors. The valence-band maximum and conduction-band minimum are found at the Brillouin zone boundary and the corresponding wave-functions are segregated on donor and acceptor molecules, respectively. With the aid of a tight-binding model, we rationalize that the mechanisms responsible for these behaviors, which are ubiquitous in donor/acceptor co-crystals, are driven by long-range interactions. The optical response of the analyzed co-crystals is highly anisotropic. The absorption onset is dominated by an intense resonance corresponding to a charge-transfer excitation. Long-range interactions are again responsible for this behavior, which enhances the efficiency of the co-crystals for photo-induced charge separation and transport. In addition to these results, our study clarifies that cluster models, accounting only for local interactions, cannot capture the relevant impact of long-range order in donor/acceptor co-crystals.
Effective field theory approach to lepton number violating $τ$ decays
Creators: name: Liao, Yi
name: Ma, Xiao-Dong
name: Wang, Hao-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We continue our endeavor to investigate lepton number violating (LNV) processes at low energy in the framework of effective field theory (EFT). In this work we study the LNV tau decays $τ^+\rightarrow \ell^-P_i^{+}P_j^{+}$, where $\ell=e,~μ$ and $P^+_{i,j}$ are the lowest-lying charged pseudoscalars $π^+,~K^+$. We analyze the dominant contributions in a series of EFTs from high to low energy scales, namely, the standard model effective field theory (SMEFT), the low-energy effective field theory (LEFT), and the chiral perturbation theory ($χ$PT). The decay branching ratios are expressed in terms of the Wilson coefficients of dimension-five and -seven operators in SMEFT and hadronic low energy constants. These Wilson coefficients involve the first and second generations of quarks and all generations of leptons and thus cannot be explored in low energy processes such as nuclear neutrinoless double decay or LNV kaon decays. Unfortunately, the current experimental upper limits on the branching ratios are too weak to set useful constraints on those coefficients. Or, if we assume the new physics scale is larger than 1 TeV, the branching ratios are well below the current experimental bounds. We also estimate hadronic uncertainties incurred in applying $χ$PT to $τ$ decays by computing one-loop chiral logarithms and attempt to improve convergence of chiral perturbation by employing dispersion relations in the short-distance part of the decay amplitudes.
description: 16 pages, 4 figures, 4 tables
America's Diverse Family Farms: 2021 Edition
Creators: name: Whitt, Christine
name: Todd, Jessica E.
name: Keller, Andrew
name: Whitt, Christine
name: Todd, Jessica E.
name: Keller, Andrew
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Farm Management
subject: Financial Economics
subject: Industrial Organization
subject: Research Methods/ Statistical Methods
subject: Farm typology
subject: agricultural production,
subject: family farms
subject: value of production
subject: operating profit margin (OPM)
subject: farm financial performance
subject: Agricultural Resource Management Survey (ARMS)
subject: commodity specialization
subject: operating expenses
subject: direct sales
subject: farm household income
subject: COVID-19
subject: government payments
subject: pandemic assistance
subject: Federal crop insurance
subject: unemployment

description: This report provides the latest statistics on U.S. farms, including production, financial performance, pandemic assistance, and farm household characteristics by farm size. New sections of this edition explore changes in direct sales, pandemic-related off-farm job loss and furloughs, farm operating expenses, and the distribution of USDA and non-USDA pandemic assistance received in 2020.
Graphene as an electronic membrane
Creators: name: Kim, Eun-Ah
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Experiments are finally revealing intricate facts about graphene which go beyond the ideal picture of relativistic Dirac fermions in pristine two dimensional (2D) space, two years after its first isolation. While observations of rippling added another dimension to the richness of the physics of graphene, scanning single electron transistor images displayed prevalent charge inhomogeneity. The importance of understanding these non-ideal aspects cannot be overstated both from the fundamental research interest since graphene is a unique arena for their interplay, and from the device applications interest since the quality control is a key to applications. We investigate the membrane aspect of graphene and its impact on the electronic properties. We show that curvature generates spatially varying electrochemical potential. Further we show that the charge inhomogeneity in turn stabilizes ripple formation.
description: 6 pages, 11 figures. Updated version with new results about the re-hybridization of the electronic orbitals due to rippling of the graphene sheet. The re-hybridization adds the next-to-nearest neighbor hopping effect discussed in the previous version. New reference to recent STM experiments that give support to our theory
Homotopy invariant in time-reversal and twofold rotation symmetric systems
Creators: name: Li, Haoshu
name: Wan, Shaolong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The primary goal of this paper is to study topological invariants in two dimensional twofold rotation and time-reversal symmetric spinful systems. In this paper, firstly we build a new homotopy invariant based on the lifting of the Wilson loop to the universal covering group of the special orthogonal group. Furthermore, we prove that the invariant we built agrees with the K theory invariant. We go beyond the previous understanding of the Wilson loop unwinding in more than two occupied bands by finding an obstruction of such unwinding. Then, within this formalism, we show two examples that have the same Wilson loop spectrum but belong to different topological classes. Finally, we present a tight binding model realizing the non-trivial phase.
description: 19 pages, 10 figures
The effect of textured and pelleted concentrate on milk component production
Creators: name: Gardner, Wendy Christine
Publisher: name: University of British Columbia
Year: 2009

description: Two trials were conducted using Holstein dairy cattle to determine if any difference in milk yield, milk composition and animal food intake occurred when cows were fed either a textured or pelleted concentrate. In the textured concentrate the grain portion was steam flaked with the remainder of the ingredients being pelleted. Both trials used a change-over design where all animals received both diets. In the first trial the animals were classified according to milk production level and were fed textured and pelleted concentrates with alfalfa cubes as the forage source. Cow, period, production level and treatment effects were studied. It was found that animals fed textured concentrate had a significantly (P<0.05) higher milk fat percentage, higher rumen acetate and lower rumen propionate than those fed the pelleted concentrate. In the second trial, textured and pelleted concentrates were fed with a corn:grass silage mixture as the forage. Animals that were fed textured concentrate had a significantly higher silage intake (P<0.05) and concentrate intake (P<0.01) but a significantly lower (P<0.01) milk yield. Milk fat percentage was found to be significantly higher (P<0.01) with the textured feed, although no significant difference was found when fat yield was compared. Milk protein yield was significantly (P<0.01) higher with the pelleted feed while both rumen pH and RBC were lower (P<0.01). Concentrate processing had no significant effect on rumen volatile fatty acid concentration. In the third trial, the degradation characteristics of dry matter (DM) and protein of textured and pelleted concentrates and a corn:grass silage mixture were determined. Concentrates were incubated in nylon bags for up to 72 h and the silage for up to 96 h in the rumen of animals fed an alfalfa and grass hay mixture along with a 16% protein dairy concentrate. The pelleted concentrate had a higher (P<0.01) readily soluble dry matter fraction, readily soluble protein fraction (P<0.01), and effective protein degradability (P<0.05) than the textured concentrate. The results indicate that the feeding of textured concentrate resulted in an increase in milk fat percentage. However, in trial two, feeding textured concentrates did not change milk fat yield while pelleting increased protein yield. The results from trial three indicate that the higher level of heat and moisture involved in steam flaking may act to protect the protein fraction and to decrease the readily degradable dry matter fraction of the concentrate.
Nuclear quantum effects in water
Creators: name: Morrone, Joseph A.
name: Car, Roberto
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work, a path integral Car-Parrinello molecular dynamics simulation of liquid water is performed. It is found that the inclusion of nuclear quantum effects systematically improves the agreement of first principles simulations of liquid water with experiment. In addition, the proton momentum distribution is computed utilizing a recently developed open path integral molecular dynamics methodology. It is shown that these results are in good agreement with neutron Compton scattering data for liquid water and ice.
description: 4 pages
MSME Impact Towards Empowerment of Women Entrepreneur
Creators: name: J.Aruna, C.Sankar
Publisher: name: Zenodo
Year: 2024

description: Women constitute almost half of the world's population. Over 50% of people globally, including those in India, are women. Nonetheless, women are believed to contribute less to the country's economic expansion than do males. The traditional perspective that views women as housewives The primary obstacle preventing women in this country from actively participating in economic activities is that their male counterparts are responsible for providing for the household. But in recent decades, women have played a bigger role in the country's economic development. Historically, women have been assigned less important roles and responsibilities while men have held prominent positions in society. Women's entrepreneurship has been acknowledged as a major untapped source of economic growth over the last 10 years. As stated in the Government of India's Annual Report 2020–21, Ministries of MSMEs, the With an estimated 630.52 lakh businesses, the micro sector employs 1076.19 lakh people, or nearly 97% of all jobs in the industry. Out of the total number of workers in the MSME sector, 1.75 lakh (0.16%) are employed in the medium sector and 31.95 lakh (2.88%) work in the small sector, which employs 3.31 lakh individuals. It also estimates that 844.68 (76%) of the 1109.89 lakh workers in the MSME sector are men and the remaining 264.92 lakh (24%) are women. This study examines about the MSME impact towards empowering the women entrepreneur.
Thermally stimulated H emission and diffusion in hydrogenated amorphous silicon
Creators: name: Abtew, T. A.
name: Inam, F.
name: Drabold, D. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report first principles ab initio density functional calculations of hydrogen dynam- ics in hydrogenated amorphous silicon. Thermal motion of the host Si atoms drives H diffusion, as we demonstrate by direct simulation and explain with simple models. Si-Si bond centers and Si ring centers are local energy minima as expected. We also describe a new mechanism for break- ing Si-H bonds to release free atomic H into the network: a fluctuation bond center detachment (FBCD) assisted diffusion. H dynamics in a-Si:H is dominated by structural fluctuations intrinsic to the amorphous phase not present in the crystal.
description: 4 pages, 5 figures, In press EPL (Jun. 2007)
Detecting transition between Abelian and non-Abelian topological orders through symmetric tensor networks
Creators: name: Chen, Yu-Hsueh
name: Huang, Ching-Yu
name: Kao, Ying-Jer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a unified scheme to identify phase transitions out of the $\mathbb{Z}_2$ Abelian topological order, including the transition to a non-Abelian chiral spin liquid. Using loop gas and and string gas states [H.-Y. Lee, R. Kaneko, T. Okubo, N. Kawashima, Phys. Rev. Lett. 123, 087203 (2019)] on the star lattice Kitaev model as an example, we compute the overlap of minimally entangled states through transfer matrices. We demonstrate that, similar to the anyon condensation, continuous deformation of a $\mathbb{Z}_2$-injective projected entangled-pair state (PEPS) also allows us to study the transition between Abelian and non-Abelian topological orders. We show that the charge and flux anyons defined in the Abelian phase transmute into the $σ$ anyon in the non-Abelian topological order. Furthermore, we show that contrary to the claim in [Phys. Rev. B 101, 035140 (2020)], both the LG and SG states have infinite correlation length in the non-Abelian regime, consistent with the no-go theorem that a chiral PEPS has a gapless parent Hamiltonian.
description: 9 pages, 9 figures, published version
title: Strong periodic solutions to quasilinear parabolic equations: An approach by the Da Prato–Grisvard theorem
Creators: name: Brandt, Felix
name: Hieber, Matthias
Publisher: name: Wiley
Year: 2024

description: This article develops an approach to unique, strong periodic solutions to quasilinear evolution equations by means of the classical Da Prato–Grisvard theorem on maximal Lp‐regularity in real interpolation spaces. The method is used to show that quasilinear Keller–Segel systems admit a unique, strong T‐periodic solution in a neighborhood of 0 provided the external forces are T‐periodic and satisfy certain smallness conditions. A similar assertion applies to a Nernst–Planck–Poisson type system in electrochemistry. The proof for the quasilinear Keller–Segel systems relies also on a new mixed derivative theorem in real interpolation spaces, that is, Besov spaces, which is of independent interest.
Testing the Kerr black hole hypothesis with GRS 1716-249 by combining the continuum-fitting and the iron-line methods
Creators: name: Zhang, Zuobin
name: Liu, Honghui
name: Abdikamalov, Askar B.
name: Ayzenberg, Dimitry
name: Bambi, Cosimo
name: Zhou, Menglei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The continuum-fitting and the iron-line methods are currently the two leading techniques for measuring the spins of accreting black holes. In the past few years, these two methods have been developed for testing fundamental physics. In the present work, we employ state-of-the-art models to test black holes through the continuum-fitting and the iron-line methods and we analyze three NuSTAR observations of the black hole binary GRS 1716-249 during its outburst in 2016-2017. In these three observations, the source was in a hard-intermediate state and the spectra show both a strong thermal component and prominent relativistic reflection features. Our analysis confirms the Kerr nature of the black hole in GRS 1716-249 and provides quite stringent constraints on possible deviations from the predictions of general relativity.
description: 14 pages, 9 figures. v2: refereed version
Μοντελοποίηση και προσομοίωση πολιτικών χρονοδρομολόγησης παράλληλων εργασιών σε πολλαπλά sites στο Grid
Creators: name: Σιδηρόπουλος, Σοφιανός Δημήτριος Λέανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Μοντελοποίηση
Πολιτικές χρονοδρομολόγησης
Παράλληλων Εργασιών
Modeling
Scheduling policies
Grid

description: Σε αυτή την εργασία μελετάται ένα σύστημα Grid που αποτελείται από τον Grid Scheduler και τέσσερα site που επικοινωνούν με αυτόν. Εξετάζονται τέσσερις διαφορετικές πολιτικές δρομολόγησης εργασιών από τον Grid Scheduler στα site, η κυκλική (Circulated), η ισοπίθανη πολιτική, η Shortest Queue και η Shortest Queue από 2 τυχαία site. Επίσης εξετάζονται τρεις διαφορετικές πολιτικές ανάθεσης εργασιών στους επεξεργαστές τοπικά στα site. Οι πολιτικές αυτές είναι η κυκλική (Circulated), ισοπίθανη και η Shortest Queue. Εφαρμόζονται όλοι οι δυνατοί συνδυασμοί των παραπάνω πολιτικών, για να μελετηθεί η επίδρασή τους στην απόδοση του συστήματος. Ο στόχος είναι η όσο το δυνατόν καλύτερη εξισορρόπηση φόρτου μεταξύ των site αλλά και μεταξύ των επεξεργαστών σε κάθε site και η ελάττωση του μέσου χρόνου απόκρισης των εργασιών. Το σύστημα μοντελοποιείται σύμφωνα με τη θεωρία ουρών και προσομοιώνεται με την τεχνική της προσομοίωσης διακεκριμένων γεγονότων. Από τα αποτελέσματα των προσομοιώσεων προκύπτουν συμπεράσματα για τις πολιτικές δρομολόγησης που εξετάζονται. Η εργασία χωρίζεται σε δύο μέρη. Στο πρώτο μέρος γίνεται μία εισαγωγή στις λειτουργίες ενός συστήματος Grid, στη προσομοίωση και στη θεωρία ουρών. Στο δεύτερο μέρος αρχικά γίνεται παρουσίαση του συστήματος που εξετάζεται και των προγραμμάτων προσομοίωσης. Στη συνέχεια παρουσιάζονται τα αποτελέσματα και τα συμπεράσματα που προκύπτουν από αυτά καθώς και οι προοπτικές έρευνας.
description: This work studies a grid system which consists of a Grid Scheduler and four sites that communicate with it. Four different job scheduling policies from the Grid Scheduler to sites are examined, the Circulated, the Equiprobably policy, the Shortest Queue policy and the 2 Random Shortest Queue. Three different local job allocation policies to processors inside sites are also examined. These are the Circulated, the Equiprobably and the Shortest Queue policies. All possible different combinations of the above policies are applied to study the effects on system’s performance. The objectives are to balance the workload among the sites and among the processors in each site, and to minimize the job’s mean response time in system. Conclusions about the scheduling policies we study are derived from the simulation results. The paper is organized in two parts. The first part includes an introduction to functions of a grid system and an introduction to simulation and queuing theory. In the second part initially the system that we studied and the simulation programs are presented. In the end the results and the conclusions that are derived from the results are presented.
Analytic theory of the eight-vertex model
Creators: name: Bazhanov, Vladimir V.
name: Mangazeev, Vladimir V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We observe that the exactly solved eight-vertex solid-on-solid model contains an hitherto unnoticed arbitrary field parameter, similar to the horizontal field in the six-vertex model. The parameter is required to describe a continuous spectrum of the unrestricted solid-on-solid model, which has an infinite-dimensional space of states even for a finite lattice. The introduction of the continuous field parameter allows us to completely review the theory of functional relations in the eight-vertex/SOS-model from a uniform analytic point of view. We also present a number of analytic and numerical techniques for the analysis of the Bethe Ansatz equations. It turns out that different solutions of these equations can be obtained from each other by analytic continuation. In particular, for small lattices we explicitly demonstrate that the largest and smallest eigenvalues of the transfer matrix of the eight-vertex model are just different branches of the same multivalued function of the field parameter.
description: 58 pages, 12 figures, minor corrections
RESEARCH ON THE CAUSES OF DAMAGE TO COTTON BEING TRANSPORTED IN THE AIR STREAM
Creators: name: Mekhmonaliev, Lazizbek
Publisher: name: Zenodo
Year: 2024

description: The process of transportation of raw cotton in ginneries is carried out using a pneumatic transport device. In addition to the process of transporting the pneumatic transport device, cleaning of heavy mixtures and separation of air-transported cotton from the air is also carried out. A piece of cotton enters the working chamber of the CC-15A separator through a horizontal pipeline along with the air, then loses its speed due to volumetric expansion and the raw material is separated from the air. Cotton pieces moving at a certain speed hit the back wall of the separator working chamber, partially damaging the cotton fiber and seeds, and the defects in the fiber content increase.
The new form of the equation of state for dark energy fluid and accelerating universe
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We suggest to generalize the dark energy equation of state (EoS) by introduction the relaxation equation for pressure which is equivalent to consideration of the inhomogeneous EoS cosmic fluid which often appears as the effective model from strings/brane-worlds. As another, more wide generalization we discuss the inhomogeneous EoS which contains derivatives of pressure. For several explicit examples motivated by the analogy with classical mechanics the accelerating FRW cosmology is constructed. It turns out to be the asymptotically de Sitter or oscillating universe with possible transition from deceleration to acceleration phase. The coupling of dark energy with matter in accelerating FRW universe is considered, it is shown to be consistent with constrained (or inhomogeneous) EoS.
description: LaTeX file, 9 pages, extended version, to appear in PLB
School of NursingA Guide to Getting Started in Higher Education Teaching
Creators: name: Drury, Kelly
Publisher: name: National Teaching Repository
Year: 2024
Subjects: classificationCode: 420505
subject: Nursing workforce
classificationCode: 420599
subject: Nursing not elsewhere classified
classificationCode: 390303
subject: Higher education

description: School of NursingA Guide to Getting Started in Higher Education TeachingAs Director of Faculty and the lead for recruitment in the School of Nursing, I am often asked how to get in to teaching and lecturing with no previous experience. Focusing on the provision of supportive guidance and tips to staff who are new to working in Higher Education or have a desire to work in Higher Education, this resource is designed to help highlight, what clinicians could do, if they wanted to progress their career in an academic setting.Thank you for reading, I hope you find it valuable, and good luck in your new career!Kelly.DOI: 10.25416/NTR.25196558