cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
What is the $i\varepsilon$ for the S-matrix?
Creators: name: Hannesdottir, Holmfridur S.
name: Mizera, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Can the S-matrix be complexified in a way consistent with causality? Since the 1960's, the affirmative answer to this question has been well-understood for $2 \to 2$ scattering of the lightest particle in theories with a mass gap at low momentum transfer, where the S-matrix is analytic everywhere except at normal-threshold branch cuts. We ask whether an analogous picture extends to realistic theories, such as the Standard Model, that include massless fields, UV/IR divergences, and unstable particles. Especially in the presence of light states running in the loops, the traditional $i\varepsilon$ prescription for approaching physical regions might break down, because causality requirements for the individual Feynman diagrams can be mutually incompatible. We demonstrate that such analyticity problems are not in contradiction with unitarity. Instead, they should be thought of as finite-width effects that disappear in the idealized $2\to 2$ scattering amplitudes with no unstable particles, but might persist at higher multiplicity. To fix these issues, we propose an $i\varepsilon$-like prescription for deforming branch cuts in the space of Mandelstam invariants without modifying the analytic properties. This procedure results in a complex strip around the real part of the kinematic space, where the S-matrix remains causal. In addition to giving a pedagogical introduction to the analytic properties of the perturbative S-matrix from a modern point of view, we illustrate all the points on explicit examples, both symbolically and numerically. To help with the investigation of related questions, we introduce a number of tools, including holomorphic cutting rules, new approaches to dispersion relations, as well as formulae for local behavior of Feynman integrals near branch points.
description: 168 pages, published by Springer
Effect of Performance Appraisal on Employees' Job Satisfaction the Case of Commercial Bank of Ethiopia (CBE)
Creators: name: Hailu, Genet
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Performance Appraisal is one of the key important factor which is practice by human resource management of every successful organization. The purpose of this study is to investigate the effect of performance appraisal on employees' job-satisfaction in the case of CBE. Currently in CBE most of employees not satisfied by the performance appriasal practice. They informally complains bias of the raters, lack of continuous communication, lack of trust in the supervisor, lack of clear performance expectations. The study used a descriptive research design. A stratified random sampling was used to sample 181 respondents from Commercial Bank of Ethiopia(CBE). The study used questionnaires as its data collection instrument qualitatively and quantitatively. Regression Analysis and Correlations were used to analyze the data collected using SPSS version 20. The study revealed that performance appraisal is positively related to job satisfaction and performance appraisal is has positive effect on job satisfaction. Keywords: performance appraisal, job satisfaction and organizational commitment
Raíces analíticas de matrices invertibles cuyas entradas son funciones analiticas
Creators: name: Julio Torres, Ana Isabel
Publisher: name: Universidad de Cartagena
Year: 2007
Subjects: Matrices Invertibles - Funciones
Funciones analíticas - Raíces
Álgebra lineal y aplicaciones

description: Tesis (Matemático).--Universidad de Cartagena. Facultad de Ciencias Exactas y Naturales. Programa de Matemáticas, 2007
description: La teoría del álgebra lineal, mas exactamente el espacio de las matrices, es quizás una de las teorías mas estudiadas en el campo de las matemáticas. Un ejemplo de ello es lo desarrollado en este trabajo, el cual consiste en estudiar una propiedad de las raíces m - ésimas de cualquier matriz dada, mas precisamente se buscan condiciones bajo las cuales las raíces m - ésimas resultan ser matrices analíticas.
title: Wie schätzen sich Ärzte in Weiterbildung zum Facharzt für Allgemeinmedizin ein, medizinische Prozeduren durchführen zu können – und wann erwerben Sie diese Kompetenz?
Creators: name: Jäkel, K.
name: Götz, K.
name: Steinhäuser, J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Kompetenzbasiertes Curriculum
subject: Prozeduren
subject: Weiterbildung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Im Bereich der medizinischen Aus- und Weiterbildung erfährt der kompetenzbasierte Ansatz in den letzten Jahrzehnten eine immer weitere Verbreitung. Medizinische Prozeduren sind als „Fertigkeiten“ Teil dieses Ansatzes und sollten daher explizit im Rahmen der Aus- und Weiterbildung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Hamilton-Jacobi approach to Potential Functions in Information Geometry
Creators: name: Ciaglia, Florio M.
name: Di Cosmo, Fabio
name: Felice, Domenico
name: Mancini, Stefano
name: Marmo, Giuseppe
name: Pérez-Pardo, Juan M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The search for a potential function $S$ allowing to reconstruct a given metric tensor $g$ and a given symmetric covariant tensor $T$ on a manifold $\mathcal{M}$ is formulated as the Hamilton-Jacobi problem associated with a canonically defined Lagrangian on $T\mathcal{M}$. The connection between this problem, the geometric structure of the space of pure states of quantum mechanics, and the theory of contrast functions of classical information geometry is outlined.
description: 16 pages. A discussion on the Kullback-Leibler divergence has been added. To appear in Journal of Mathematical Physics
Defending Active Directory by Combining Neural Network based Dynamic Program and Evolutionary Diversity Optimisation
Creators: name: Goel, Diksha
name: Ward, Max
name: Neumann, Aneta
name: Neumann, Frank
name: Nguyen, Hung
name: Guo, Mingyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Active Directory (AD) is the default security management system for Windows domain networks. We study a Stackelberg game model between one attacker and one defender on an AD attack graph. The attacker initially has access to a set of entry nodes. The attacker can expand this set by strategically exploring edges. Every edge has a detection rate and a failure rate. The attacker aims to maximize their chance of successfully reaching the destination before getting detected. The defender's task is to block a constant number of edges to decrease the attacker's chance of success. We show that the problem is #P-hard and, therefore, intractable to solve exactly. We convert the attacker's problem to an exponential sized Dynamic Program that is approximated by a Neural Network (NN). Once trained, the NN provides an efficient fitness function for the defender's Evolutionary Diversity Optimisation (EDO). The diversity emphasis on the defender's solution provides a diverse set of training samples, which improves the training accuracy of our NN for modelling the attacker. We go back and forth between NN training and EDO. Experimental results show that for R500 graph, our proposed EDO based defense is less than 1% away from the optimal defense.
description: Added reference [12] on page 3 and 4. Corrected spelling EVC to VEC on page 10
Open Wilson chains for quantum impurity models: Keeping track of all bath modes
Creators: name: Bruognolo, Benedikt
name: Linden, Nils-Oliver
name: Schwarz, Frauke
name: Lee, Seung-Sup B.
name: Stadler, Katharina
name: Weichselbaum, Andreas
name: Vojta, Matthias
name: Anders, Frithjof B.
name: von Delft, Jan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: When constructing a Wilson chain to represent a quantum impurity model, the effects of truncated bath modes are neglected. We show that their influence can be kept track of systematically by constructing an "open Wilson chain" in which each site is coupled to a separate effective bath of its own. As a first application, we use the method to cure the so-called mass-flow problem that can arise when using standard Wilson chains to treat impurity models with asymmetric bath spectral functions at finite temperature. We demonstrate this for the strongly sub-Ohmic spin-boson model at quantum criticality where we directly observe the flow towards a Gaussian critical fixed point.
description: 4 + 12 pages, 4 + 6 figures (published version)
title: Akkreditierung von Weiterbildungsverbünden in der DEGAM-Verbundweiterbildungplus
Creators: name: Flum, E.
name: Marquard, S.
name: Steinhäuser, J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Akkreditierung
subject: Qualitätsindikatoren
subject: Weiterbildung
subject: 610 Medical sciences; Medicine

description: Hintergrund: Eine qualitativ hochwertige Weiterbildung kann die Patientensicherheit und Versorgungsqualität der Bevölkerung verbessern [ref:1]. 2013 wurden von der Deutschen Gesellschaft für Allgemeinmedizin und Familienmedizin (DEGAM) erste strukturelle und inhaltliche Anforderungen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
On the topological dimension of the Gromov boundaries of some hyperbolic $Out(F_N)$-graphs
Creators: name: Bestvina, Mladen
name: Horbez, Camille
name: Wade, Richard D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F65, 20F28

description: We give upper bounds, linear in rank, to the topological dimensions of the Gromov boundaries of the intersection graph, the free factor graph and the cyclic splitting graph of a finitely generated free group.
description: 34 pages, 5 figures. Accepted version for the Pacific Journal of Mathematics
Project Impact Evaluation Practices and Challenges: An Appraisal of Selected World Vision Ethiopia`s Prevention of Mother to Child HIV Transmission Projects
Creators: name: Shiferaw, Feleke
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Projects were hitherto evaluated, by and large, from the view point of implementation success. Currently, there is a growing recognition of project impact evaluation apart from implementation effectiveness. This is truer for development projects. This thesis deals with project impact evaluation practices and challenges in World Vision Ethiopia`s Prevention of Mother to Child HIV Transmission Project (PMTCT) which is simultaneously implemented in three different parts of Ethiopia: Shashemene, Adeaderga and Kolfe Qeranyo (Addis Ababa) from 2014 -2017 E.C. The author selected the topic because it is under researched, compared to other topics in project management. The study tries to explore and describe separate but interrelated issues. On the one hand, it seeks to identify the importance of project impact evaluation in World Vision Ethiopia, how it is conducted and its objectives; and on the other hand it tries to identify the attendant challenges thereof. The study utilized descriptive research design; employed qualitative research methodology and contemporary material and has come up with six major findings. The first is project planning in the case organization includes final evaluation. The second finding is that final project evaluation is conducted by an independent external professional organization guided by the Organization for Economic Cooperation and Development (OECD) principles (effectiveness, efficiency, relevance, sustainability and impact) as evaluation objectives. Thirdly, it found out that goal level impact evaluation is not conducted for the project in question. The fourth finding is that the choice of time for final evaluation is not suitable for impact evaluation as the impacts were not yet fully visible at that point in time. The fifth finding is that PMTCT projects impact evaluation is affected by lack of willingness from the side of HIV positive mothers and partners for fear of stigma and discrimination from the society. The sixth and final finding is that, there is no culture of evaluating goal level impact evaluation for PMTCT projects in the case organization. The overall conclusion of the study is that conducting impact evaluation, its basic evaluation problem-disentangling project effects from intervening factors, is not given due attention in the case organization even if it has shown exemplary performance in other aspects as the final evaluation report claims. The practical implication of the findings is that, impact evaluation requires a separate timing and design to conduct than the relatively easy to measure strands of project evaluation such as efficiency and effectiveness.
A note on generalized hydrodynamics: inhomogeneous fields and other concepts
Creators: name: Doyon, Benjamin
name: Yoshimura, Takato
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Generalized hydrodynamics (GHD) was proposed recently as a formulation of hydrodynamics for integrable systems, taking into account infinitely-many conservation laws. In this note we further develop the theory in various directions. By extending GHD to all commuting flows of the integrable model, we provide a full description of how to take into account weakly varying force fields, temperature fields and other inhomogeneous external fields within GHD. We expect this can be used, for instance, to characterize the non-equilibrium dynamics of one-dimensional Bose gases in trap potentials. We further show how the equations of state at the core of GHD follow from the continuity relation for entropy, and we show how to recover Euler-like equations and discuss possible viscosity terms.
description: v1 15 pages; v2 16 pages, discussion improved
title: Mangel an ärztlichem Nachwuchs an allgemeinmedizinischen Instituten: Fakt oder Fiktion?
Creators: name: Kötter, T.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Ärzte in Weiterbildung
subject: Versorgungsforschung
subject: Weiterbildung Allgemeinmedizin
subject: 610 Medical sciences; Medicine

description: Hintergrund: Die universitäre Allgemeinmedizin in Deutschland wächst stetig. Als Folge werden regelmäßig Ärzte (w/m) für die Besetzung wissenschaftlicher Stellen gesucht. Die wissenschaftliche Ausbildung von Ärzten (w/m) ist sinnvoll und wichtig, damit die[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
The Almost Sure Essential Spectrum of the Doubling Map Model is Connected
Creators: name: Damanik, David
name: Fillman, Jake
Publisher: name: arXiv
Year: 2022
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We consider discrete Schrödinger operators on the half line with potentials generated by the doubling map and continuous sampling functions. We show that the essential spectrum of these operators is always connected. This result is obtained by computing the subgroup of the range of the Schwartzman homomorphism associated with homotopy classes of continuous maps on the suspension of the standard solenoid that factor through the suspension of the doubling map and then showing that this subgroup characterizes the topological structure of the spectrum.
description: 11 pages
Non-collinear Order and Spin-Orbit Coupling in Sr$_3$ZnIrO$_6$
Creators: name: McClarty, P. A.
name: Hillier, A. D.
name: Khalyavin, D. T. Adroja D. D.
name: Rayaprol, S.
name: Manuel, P.
name: Kockelmann, W.
name: Sampathkumaran, E. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Sr$_{3}$ZnIrO$_{6}$ is an effective spin one-half Mott insulating iridate belonging to a family of magnets which includes a number of quasi-one dimensional systems as well as materials exhibiting three dimensional order. Here we present the results of an extensive investigation into the magnetism including heat capacity, a.c. susceptibility, muon spin rotation ($μ$SR), neutron diffraction and inelastic neutron scattering on the same sample. It is established that the material exhibits a transition at about $17$ K into a three-dimensional antiferromagnetic structure with propagation vector $\boldsymbol{k}=(0,\frac{1}{2},1)$ in the hexagonal setting of R$\bar{3}$c and non-collinear moments of $0.87$$μ_B$ on Ir$^{4+}$ ions. Further we have observed a well defined powder averaged spin wave spectrum with zone boundary energy of $\sim 5$ meV at $5$ K. We stress that a theoretical analysis shows that the observed non-collinear magnetic structure arises from anisotropic inter- and intra- chain exchange which has its origin in significant spin-orbit coupling. The model can satisfactorily explain the observed spin wave excitations.
description: 6 pages, 5 figures
KAMA MUTA ON FEELINGS OF THREAT AND CHALLENGE IN COUPLES
Creators: name: Stanton, Sarah C. E.
name: HARP Lab
name: Hajnosz, Ian
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Social Psychology
subject: Psychology
subject: FOS: Psychology
subject: Romantic relationships
subject: Threat & Challenge
subject: Emotion

description: This preregistration includes the background, hypotheses & research question, and analytic plan document for an investigation of kama muta and threat/challenge in romantic couples. Materials can be found in the Experiment Materials folder of the Project
Duality and helicity: the photon wave function approach
Creators: name: Elbistan, M.
name: Horvathy, P. A.
name: Zhang, P. -M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Classical Physics (physics.class-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The photon wave equation proposed in terms of the Riemann-Silberstein vector is derived from a first-order Dirac/Weyl-type action principle. It is symmetric w.r.t. duality transformations, but the associated Noether quantity vanishes. Replacing the fields by potentials and using instead a quadratic Klein-Gordon-type Lagrangian allows us to recover the double-Chern-Simons expression of conserved helicity and is shown to be equivalent to recently proposed alternative frameworks. Applied to the potential-modified theory the Dirac/Weyl-type approach yields again zero conserved charge, whereas the Klein-Gordon-type approach applied to the original setting yields Lipkin's "zilch".
description: Title changed, the main result clarified and better explained. References added. 13 pages, 1 Table, no figures. To be published in Phys. Lett. A
title: Wahrnehmung, Beschreibung und Bewertung der hausärztlichen Versorgungssituation in Sachsen-Anhalt durch die Bürgermeister/Innen
Creators: name: Barthen, L.
name: Gerlinger, T.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Gemeinden
subject: Hausärztemangel
subject: Sachsen-Anhalt
subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Überalterung der Hausärzteschaft bei gleichzeitigem Nachwuchsmangel hat negative Auswirkungen auf die hausärztliche Versorgungssituation in nahezu allen Landkreisen Sachsen-Anhalts. Die Kommunen sind mit zunehmenden Problemen bei der Sicherstellung der hausärztlichen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
p-adic approach of Greenberg's conjecture (p-split totally real case)
Creators: name: Gras, Georges
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let k be a totally real number field ant let k$\infty$ be its cyclotomic Zp-extension for a prime p\textgreater{}2. We give (Theorem 3.2) a sufficient condition of nullity of the Iwasawa invariants lambda, mu, when p totally splits in k, and we obtain important tables of quadratic fields and p for which we can conclude that lambda = mu=0.We show that the number of ambiguous p-classes of kn (nth stage in k$\infty$) is equal to the order of the torsion group T, of the Galois group of the maximal Abelian p-ramified pro-p-extension of k (Theorem 4.2), for all n \textgreater{}\textgreater{} e, where p^e is the exponent of U*/ adh(E) (in terms of local and global units of k). Then we establish analogs of Chevalley's formula using a family (Lambda\_i^n)\_{0$\le$i$\le$m\_n} of subgroups of k* containing E, in which any x is norm of an ideal of kn. This family is attached to the classical filtration of the p-class group of kn defining the algorithm of computation of its order in m\_n steps. From this, we prove (Theorem 6.1) that m\_n $\ge$ (lambda.n + mu.p^n + nu)/v\_p(T\_k) and that the condition m\_n = O(1) (i.e., lambda = mu=0) essentially depends on the P-adic valuations of the (x^(p-1)-1)/p, x in Lambda\_i^n, for P I p, so that Greenberg's conjecture is strongly related to "Fermat quotients" in k*. Heuristics and statistical analysis of these Fermat quotients (Sections 6, 7, 8) show that they follow natural probabilities, linked to T\_k whatever n, suggesting that lambda = mu=0 (Heuristics 7.1, 7.2, 7.3). This would imply that, for a proof of Greenberg's conjecture, some deep p-adic results (probably out of reach now), having some analogy with Leopoldt's conjecture, are necessary before referring to the sole algebraic Iwasawa theory.
description: in French, To appear in "Annales Math\'ematiques Blaise Pascal"
Canonical partition function and center symmetry breaking in finite density lattice gauge theories
Creators: name: Ejiri, Shinji
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the nature of the phase transition of lattice gauge theories at high temperature and high density by focusing on the probability distribution function, which represents the probability that a certain density will be realized in a heat bath. The probability distribution function is obtained by creating a canonical partition function fixing the number of particles from the grand partition function. However, if the Z_3 center symmetry, which is important for understanding the finite temperature phase transition of SU(3) lattice gauge theory, is maintained on a finite lattice, the probability distribution function is always zero, except when the number of particles is a multiple of 3. For U(1) lattice gauge theory, this problem is more serious. The probability distribution becomes zero when the particle number is nonzero. This problem is essentially the same as the problem that the expectation value of the Polyakov loop is always zero when calculating with finite volume. In this study, we propose a solution to this problem. We also propose a method to avoid the sign problem, which is an important problem at finite density, using the center symmetry. In the case of U(1) lattice gauge theory with heavy fermions, numerical simulations are actually performed, and we demonstrate that the probability distribution function at a finite density can be calculated by the method proposed in this study. Furthermore, the application of this method to QCD is discussed.
description: 25 pages, 12 figures. arXiv admin note: text overlap with arXiv:2112.10146
Análisis del riesgo financiero de las empresas pymes del sector metalmecánico de la ciudad de Cartagena
Creators: name: Arbeláez Aranda, Linda
name: Torres Tapia, Heberto
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Riesgo (Finanzas)

description: Tesis (Especialista en Finanzas) -- Universidad de Cartagena. Facultad de Ciencias Económicas. Especialización en finanzas, 2014
description: El objetivo de esta investigación busca analizar los riesgos financieros que afrontan las empresas PYMES del sector metalmecánico de la ciudad de Cartagena y la incidencia en el resultado de la compañía. También se pretende obtener un conocimiento teórico sobre el riesgo financiero y lograr conciencia en la comunidad empresarial de la importancia de contar con instrumentos que nos permita una adecuada planeación, ealuación, control del riesgo financiero para prevenir y minimizar al máximo el riesgo financiero.
Increasing positive monoids of ordered fields are FF-monoids
Creators: name: Gotti, Felix
Publisher: name: arXiv
Year: 2016
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: Primary: 12J15, 20M13, Secondary: 06F05, 13A05

description: Given an ambient ordered field $K$, a positive monoid is a countably generated additive submonoid of the nonnegative cone of $K$. In this paper, we first generalize several atomic features exhibited by Puiseux monoids of the field of rational numbers to the more general setting of positive monoids of Archimedean fields, accordingly arguing that such generalizations may fail if the ambient field is not Archimedean. In particular, we show that a positive monoid $P$ of an Archimedean field is a BF-monoid provided that $P \! \setminus \! \{0\}$ does not have $0$ as a limit point. Then, we prove our main result: every increasing positive monoid of an ordered field is an FF-monoid. Finally, we deduce that every increasing positive monoid is hereditarily atomic.
description: 17 pages
The fuzzy BTZ
Creators: name: Buric, Ilija
name: Buric, Maja
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce a model of a noncommutative BTZ black hole, obtained by quantisation of Poincaré coordinates together with a moving frame. The fuzzy BTZ black hole carries a covariant differential calculus, satisfies Einstein's equations and has a constant negative curvature. The construction passes through a larger space, the fuzzy anti-de Sitter, and implements discrete BTZ identifications as conjugations by a unitary operator. We derive the spectrum of the suitably regularised radial coordinate: it consists of a continuum of scattering states outside the horizon $r_+$ and an infinite discrete set of bound states inside.
description: Matches the published version 10.1007/JHEP12(2022)102
Practices and Challenges of Stakeholder Engagement of United Nations Industrial Development Organization's (UNIDO) projects
Creators: name: Gedamu, Martha
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The purpose of this study was to assess the stakeholder engagement practices and challenges of the United Nations Industrial Development Organization (UNIDO) projects. International development projects emanated from their mandate and intended to improve the living conditions of the marginalized. But often criticized for their lack of gaining shared perception and agreement on the objectives of the project and lack of commitment to the project by all stakeholders involved. Recently though stakeholder engagement has been much emphasized in the context of international development projects. The main focus has been on identifying those who are affected by a project and actively involving them in the project life cycle in order to ensure that the project is responsive to the local needs and conditions. In this regard the research sought to assess the perception of key project personnel; identify the stakeholder engagement approach used; examine the factors that hinder or enable successful engagement and identify outcomes that arose due to stakeholder engagement. A mixed research approach was employed, both quantitative data collected through questionnaire from 32 project personnel and qualitative data through semi-structured interview from two key personnel were analyzed. The finding showed that the stakeholder engagement process is on developing stage, having in place strategy and process, yet have challenges in terms of communication and commitment from the multi-stakeholders involved. The study recommended improvements in the communication tool addressing language barriers, training the project team in people skills and the management to use a tracking mechanism for its stakeholder engagement performance and feedback to enhance regular corrective measures. In addition, the study directed future works to be conducted on stakeholder engagement that are not addressed in this research
Towards optimising polymyxin therapy against infections caused by multidrug-resistant Acinetobacter baumannii
Creators: name: Cheah, Soon-Ee
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The increasing incidence of infections caused by Gram-negative ‘superbugs’ is emerging as one of the most significant threats confronting public health in the modern era. This crisis has been compounded by the decline in antimicrobial drug discovery research over the last 30 years that has resulted in a lack of novel antimicrobial agents in late-stage clinical development. It is against this backdrop that polymyxins, first introduced in the 1950s, have emerged as last-line therapeutic agents for the treatment of recalcitrant infections caused by Gram-negative pathogens, such as Acinetobacter baumannii. As a result of having been introduced prior to modern drug development practices, polymyxin dosing strategies have not been adequately investigated or optimised. This thesis combines in vitro experimental models, mathematical modelling and high-throughput sequencing (HTS) to characterise polymyxin activity against A. baumannii, and address the dearth of information surrounding the link between polymyxin pharmacokinetics (PK) and pharmacodynamics (PD). In addressing the aims and hypotheses of this thesis, new methods were developed for quantifying polymyxins in bacterial growth media, and mathematically defining antimicrobial activity in in vitro time-kill studies. Further, the bactericidal activity of polymyxin was found to be dependent on the rapid attainment of therapeutic concentrations. These findings carry significant clinical implications, given that the two clinically-used polymyxins, colistin and polymyxin B, exhibit markedly different concentration-time profiles in critically-ill patients. The gradual accumulation of colistin, seen in patients following administration of its inactive prodrug colistin methanesulphonate, resulted in little antimicrobial activity. Notably, these studies consistently highlighted the development of polymyxin resistance during treatment, even with aggressive dosing strategies. Mechanism-based mathematical modelling implicated the involvement of adaptive (i.e. non-stable) and constitutive (i.e. stable) polymyxin resistance in the phenotype observed. Further in vitro experimental studies, aided by HTS to characterise genomes and transcriptomes of polymyxin-resistant A. baumannii, confirmed the presence of non-stable and stable resistance. Together, the results presented in this thesis demonstrate the utility of combining in vitro and in silico strategies for investigating antimicrobial PK/PD. Our findings also point to combination therapy as an avenue for addressing antimicrobial resistance.

Awards: Winner of the Mollie Holman Doctoral Medal for Excellence, Faculty of Pharmacy and Pharmaceutical Sciences, 2016.
Quenching in Cosmic Sheets: Tracing the Impact of Large Scale Structure Collapse on the Evolution of Dwarf Galaxies
Creators: name: Pasha, Imad
name: Mandelker, Nir
name: Bosch, Frank C. van den
name: Springel, Volker
name: van de Voort, Freeke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Dwarf galaxies are thought to quench primarily due to environmental processes most typically occurring in galaxy groups and clusters or around single, massive galaxies. However, at earlier epochs, ($5 < z < 2$), the collapse of large scale structure (forming Zel'dovich sheets and subsequently filaments of the cosmic web) can produce volume-filling accretion shocks which elevate large swaths of the intergalactic medium (IGM) in these structures to a hot ($T>10^6$ K) phase. We study the impact of such an event on the evolution of central dwarf galaxies ($5.5 < \log M_* < 8.5$) in the field using a spatially large, high resolution cosmological zoom simulation which covers the cosmic web environment between two protoclusters. We find that the shock-heated sheet acts as an environmental quencher much like clusters and filaments at lower redshift, creating a population of quenched, central dwarf galaxies. Even massive dwarfs which do not quench are affected by the shock, with reductions to their sSFR and gas accretion. This process can potentially explain the presence of isolated quenched dwarf galaxies, and represents an avenue of pre-processing, via which quenched satellites of bound systems quench before infall.
description: 15 pages, 10 figures. Submitted to MNRAS
Grado de posicionamiento de los graduados del Programa de Administración de Empresas de la Universidad de Cartagena en el mercado laboral de Cartagena (2010 - 2013)
Creators: name: Jiménez Consuegra, Winston José
name: Palacio De Arco, Alberto
Publisher: name: Universidad de Cartagena
Year: 2016
Subjects: Mercado laboral
Empleado profesional
Competencias laborales
Egresado de Administración de Empresas - Universidad de Cartagena - Perfil profesional

description: Tesis (Administrador de Empresas).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 2016
description: El objetivo de este trabajo de grado busca analizar el posicionamiento que tienen los graduados del programa de Administración de Empresas de la Universidad de Cartagena en el mercado laboral cartagenero en 2010 – 2013, considerando información obtenida mediante encuestas, de los ámbitos demográfico, socioeconómico, laboral, así como las percepciones en torno a la utilidad y pertinencia de la formación que reciben en esta institución de educación superior.
title: Wie gut werden kardiovaskuläre Risikofaktoren in der ambulanten Versorgung kodiert?
Creators: name: Angelow, A.
name: Reber, K.
name: Baumeister, S.
name: Schmidt, C.O.
name: Chenot, J.-F.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Abrechnungsdaten
subject: Kodierqualität
subject: 610 Medical sciences; Medicine

description: Hintergrund: Ambulante kassenärztliche Abrechnungsdaten werden häufig für Prävalenzschätzungen und Korrelationsanalysen genutzt. Limitierungen durch Über- / Unter- / Fehlkodierung sind bekannt, deren Ausmaß jedoch bisher unzureichend quantifiziert. Studienfrage:[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
title: Was beeinflusst Impfquoten? Verhalten der Impfquoten vor und nach der Warnung vor einem Vierfachimpfstoff gegen MMRV
Creators: name: Sanftenberg, L.
name: Schelling, J.
name: Schrörs, H.-J.
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: Allgemeinmedizin
subject: Impfung
subject: Pädiatrie
subject: 610 Medical sciences; Medicine

description: Hintergrund: Impfquoten unterliegen vielen Einflüssen, die möglichst in die Impfempfehlungen der Ärzte mit einbezogen werden sollten. 2011 wies die ständige Impfkommission (STIKO) darauf hin, dass die Fachinformation für den Mumps-Masern-Röteln-Varizellen (MMRV) Impfstoff[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 49. Kongress für Allgemeinmedizin und Familienmedizin
Pro-unipotent harmonic actions and dynamical properties of $p$-adic cyclotomic multiple zeta values
Creators: name: Jarossay, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: $p$-adic cyclotomic multiple zeta values depend on the choice of a number of iterations of the crystalline Frobenius of the pro-unipotent fundamental groupoid of $\mathbb{P}^{1} - \{0,μ_{N},\infty\}$. In this paper we study how the iterated Frobenius depends on the number of iterations, in relation with the computation of $p$-adic cyclotomic multiple zeta values in terms of cyclotomic multiple harmonic sums. This provides new results on that computation and the definition of a new pro-unipotent harmonic action.
description: 27 pages. Part I-3 of "$p$-adic cyclotomic multiple zeta values and $p$-adic pro-unipotent harmonic actions"
title: High-pressure freezing for EM to study plasticity and pathology of identified central synapses
Creators: name: Frotscher, Michael
name: Studer, Daniel
name: Zhao, Shanting
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Question: Electron microscopy is the best way to visualize synapses with their presynaptic and postsynaptic compartments including structural specifications such as synaptic vesicles, active zones, and the spine apparatus. It is an open question to what extent the structure and distribution of these[for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
Boundary triplets for skew-symmetric operators and the generation of strongly continuous semigroups
Creators: name: Wegner, Sven-Ake
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: Primary 47D06, Secondary 35G15, 47B44

description: We give a self-contained and streamlined exposition of a generation theorem for C0-semigroups based on the method of boundary triplets. We apply this theorem to port-Hamiltonian systems where we discuss recent results appearing in stability and control theory. We give detailed proofs and require only a basic knowledge of operator and semigroup theory.
description: 19 pages
title: Deficiency in LIM-domain-binding proteins 1/2 and STE-20 like kinase leads to loss of distal dendrites and inhibitory synapse degeneration
Creators: name: Robens, Barbara
name: Maresch, Robert
name: Grote, Alexander
name: Van Loo, Karen M. J.
name: Beck, Heinz
name: Schoch, Susanne
name: Becker, Albert
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Question: LIM-domain-binding (LDB) proteins 1 and 2 are multi adapter proteins, which have been reported to bind to the STE-20 like kinase (SLK). LDBs and SLK are abundantly expressed during brain development in the cerebral cortex, which may suggest a critical role during neurogenesis. How do LDB1 [for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
Z(3) metastable states in Polyakov Quark Meson model
Creators: name: Mohapatra, Ranjita K.
name: Mishra, Hiranmaya
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the existence of Z(3) metastable states in the presence of the dynamical quarks within the ambit of Polyakov quark meson (PQM) model. Within the parameters of the model, it is seen that for temperatures $T_m$ greater than the chiral transition temperature $T_c$, Z(3) metastable states exist ( $T_{m} \sim 310$ MeV at zero chemical potential). At finite chemical potential $T_m$ is larger than the same at vanishing chemical potential. We also observe a shift of ($\sim 5^\circ$) in the phase of the metastable vacua at zero chemical potential. The energy density difference between true and Z(3) metastable vacua is very large in this model. This indicates a strong explicit symmetry breaking effect due to quarks in PQM model. We compare this explicit symmetry breaking in PQM model with small explicit symmetry breaking as a linear term in Polyakov loop added to the Polyakov loop potential. We also study about the possibility of domain growth in a quenched transition to QGP in relativistic heavy ion collisions.
description: 16 pages, 11 figures
Calculation of tunneling current across Trapezoidal potential barrier in a Scanning Tunneling Microscope
Creators: name: Dessai, Malati
name: Kulkarni, Arun V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The Planar Model of the Electrode-Vacuum-Electrode configuration for STM in which electrode surfaces are assumed to be infinite parallel planes, with atomic size separation and vacuum between them, is used to calculate tunneling current densities for both low and high bias voltages. Non WKB, Airy function solutions for the Schrödinger Equation for the trapezoidal barrier in the tunneling region are used to calculate the tunneling probability. Temperature dependent Fermi Factors for each electrode are introduced and the calculation involves integration over the electron energies. In order to convert the current densities obtained in the planar model to tunneling currents the tip and sample surfaces are modelled as confocal hyperboloids, and the tip sample distance is replaced by the length of the line of force (field line). The current is found by integrating the current density over a finite area of the tip. The calculated tunnel currents for a few electrode pairs at room temperature are plotted for several values of bias voltage, tip sample distances, and tip radii of curvature. Pauli Effects are studied as a function of bias voltage and tip-sample distance. Some estimate of lateral resolution and its dependence on bias voltage and tip radius is also presented.
description: 15 pages,21 figures
Análisis económico del proceso digestor de los residuos sólidos y líquidos, en la planta avicola el madroño S.A.
Creators: name: Alvarez Roca, Yisella Paulina
name: Ward Barrios, Lexter Dave
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Contabilidad ambiental
Impacto ambiental
Protección del medio ambiente

description: Tesis (Contador Público).--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Contaduría Pública, 2014
description: En las plantas de beneficio avícola el consumo de agua es muy alto, pues es un insumo fundamental en las diferentes operaciones de lavado, escaldado, evisceración, enfriamiento, transporte de algunos subproductos y aseo, entre otros. Dentro de este proceso se producen una serie de residuos como plumas, sangre, grasa, vísceras, que contribuyen a la contaminación del agua, de igual 14 forma esto genera que en el entorno de Avícola el Madroño exista inconformidad por parte de la comunidad situada en los sectores aledaños al ente, ya que estos se quejan a causa de la emisión de algunos olores molestos. Dentro de los costos de la empresa, todo esto representa una participación importante originada por el descarte, tratamiento, aprovechamiento y disposición final.
Does Experiencing Kama Muta Increase Self-Other Overlap Within Romantic Couples?
Creators: name: Stanton, Sarah C. E.
name: Hajnosz, Ian
name: HARP Lab
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Emotion
subject: IOS
subject: Intimacy & Closeness

description: This preregistration includes the background, hypotheses & research question, and analytic plan document for an investigation of kama muta and inclusion of other in self (IOS) in romantic couples. Corresponding materials can be found in the Experiment Materials folder of the Project.
Computing $J$-ideals of a matrix over a principal ideal domain
Creators: name: Heuberger, Clemens
name: Rissner, Roswitha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13F20, 11C08, 15A15, 15B33, 15B36

description: Given a square matrix $B$ over a principal ideal domain $D$ and an ideal $J$ of $D$, the $J$-ideal of $B$ consists of the polynomials $f\in D[X]$ such that all entries of $f(B)$ are in $J$. It has been shown that in order to determine all $J$-ideals of $B$ it suffices to compute a generating set of the $(p^t)$-ideal of $B$ for finitely many prime powers $p^t$. Moreover, it is known that $(p^t)$-ideals are generated by polynomials of the form $p^{t-s}ν_s$ where $ν_s$ is a monic polynomial of minimal degree in the $(p^s)$-ideal of $B$ for some $s\le t$. However, except for the case of diagonal matrices, it was not known how to determine these polynomials explicitly. We present an algorithm which allows to compute the polynomials $ν_s$ for general square matrices. Exploiting one of McCoy's theorems we first compute some set of generators of the $(p^s)$-ideal of $B$ which then can be used to determine $ν_s$. This algorithmic computation significantly extends our understanding of the $J$-ideals of $B$.