cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetry-breaking oscillations in membrane optomechanics
Creators: name: Wurl, C.
name: Alvermann, A.
name: Fehske, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the classical dynamics of a membrane inside a cavity in the situation where this optomechanical system possesses a reflection symmetry. Symmetry breaking occurs through supercritical and subcritical pitchfork bifurcations of the static fixed point solutions. Both bifurcations can be observed through variation of the laser-cavity detuning, which gives rise to a boomerang-like fixed point pattern with hysteresis. The symmetry-breaking fixed points evolve into self-sustained oscillations when the laser intensity is increased. In addition to the analysis of the accompanying Hopf bifurcations we describe these oscillations at finite amplitudes with an ansatz that fully accounts for the frequency shift relative to the natural membrane frequency. We complete our study by following the route to chaos for the membrane dynamics.
description: 8 pages, 10 figures. Published version
Decorated Ag19 on Pt(111) or the "Rare Gas Necklace"
Creators: name: Brunet, F.
name: Buttet, J.
name: Jödicke, H.
name: Monot, R.
name: Schaub, R.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Implications of Efimov physics for the description of three and four nucleons in chiral effective field theory
Creators: name: Kievsky, A.
name: Viviani, M.
name: Gattobigio, M.
name: Girlanda, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In chiral effective field theory the leading order (LO) nucleon-nucleon potential includes two contact terms, in the two spin channels $S=0,1$, and the one-pion-exchange potential. When the pion degrees of freedom are integrated out, as in the pionless effective field theory, the LO potential includes two contact terms only. In the three-nucleon system, the pionless theory includes a three-nucleon contact term interaction at LO whereas the chiral effective theory does not. Accordingly arbitrary differences could be observed in the LO description of three- and four-nucleon binding energies. We analyze the two theories at LO and conclude that a three-nucleon contact term is necessary at this order in both theories. In turn this implies that subleading three-nucleon contact terms should be promoted to lower orders. Furthermore this analysis shows that one single low energy constant might be sufficient to explain the large values of the singlet and triplet scattering lengths.
description: 5 pages, 3 figures
Factors Affecting Consumers' Purchase Decision of locally Assembled Automobiles in Addis Ababa: The Case of Lifan Motors Automobile
Creators: name: Yilma, Daniel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: It is very crucial for every automobile company and all stake holder of the industry to have deeper understanding regarding the factors that influence the purchasing behavior of consumers towards the product they offer. The purpose of this paper is to examine the influence of the factors on customers purchase decision making towards locally assembled Lifan automobiles in Addis Ababa. The study used quantitative research approach and structured questionnaire was employed. The hypotheses were also tested on a sample of 353 customers distributed, giving valid response rate of 94.2% percent. The response of questionnaires was analyzed using CronbachAlpha, descriptive statistics, correlation & multiple regressions. The application used to analyze and examine the hypotheses was the Statistical Package for Social Sciences (SPSS) V.20. The finding showed all independent variables(product attribute, brand image ,after sales service, price factor and external factor have a significant correlation with the dependent variable "consumer purchase decision making" with 95% confidence interval & at 0.05 p-value, by scoring a Pearson Correlation Coefficient "R-value" value of .497**, .562**,.419**,.507**,.561** respectively. In this case relatively brand image had a higher strong relationship with consumer purchase decision than the other four independent variables & the linear combination of (independent variables).The R2 explains 54.1% of the variance in customers' purchases decision. In addition to correlation analysis, further regression analysis was also conducted and the result indicates that all independent variables have significant relation with consumer purchase decision. Finally, as evident from the finding section recommendations were forwarded to lifan Motors Company to focus on building brand image, improving product attribute, excelling the after sales service, and implementing competitive price to capitalize the market opportunity
華埠通訊 Vol. 11, Issue 09, April 2011
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
Ongelijke kansen
Creators: name: Hermans, Marianne
Publisher: name: Zenodo
Year: 2019
Subjects: maatschappelijke ontwikkelingen
sociale ongelijkheid
trends
bibliotheken

description: Onzekerheid over de toekomst en toenemende kansenongelijkheid zorgen voor grote verschillen in de samenleving. De overheid legt meer verantwoordelijkheid bij de burger, maar zelfredzaamheid vraagt om vaardigheden waarover niet iedereen in gelijke mate beschikt. Dat vergroot het risico dat mensen niet meer kunnen meekomen, met eenzaamheid, een gebrekkige gezondheid, schooluitval, werkloosheid en armoede als gevolg. Dit druist in tegen het ideaal van een inclusieve samenleving.
description: Dit artikel was onderdeel van Dossier Trends, geschreven in opdracht van de Koninklijke Bibliotheek
Effect of Anisotropic Strain on the Crosshatch Electrical Activity in Relaxed GeSi Films
Creators: name: Bulsara, M. T.
name: Giovane, L.
name: Gray, M. H.
name: Hsu, J. W. P.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
On a generalisation of Mantel's theorem to uniformly dense hypergraphs
Creators: name: Reiher, Christian
name: Rödl, Vojtěch
name: Schacht, Mathias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35 (primary), 05C65, 05C80 (secondary)

description: For a $k$-uniform hypergraph $F$ let $\textrm{ex}(n,F)$ be the maximum number of edges of a $k$-uniform $n$-vertex hypergraph $H$ which contains no copy of $F$. Determining or estimating $\textrm{ex}(n,F)$ is a classical and central problem in extremal combinatorics. While for $k=2$ this problem is well understood, due to the work of Turán and of Erdős and Stone, only very little is known for $k$-uniform hypergraphs for $k>2$. We focus on the case when $F$ is a $k$-uniform hypergraph with three edges on $k+1$ vertices. Already this very innocent (and maybe somewhat particular looking) problem is still wide open even for $k=3$. We consider a variant of the problem where the large hypergraph $H$ enjoys additional hereditary density conditions. Questions of this type were suggested by Erd\H os and Sós about 30 years ago. We show that every $k$-uniform hypergraph $H$ with density $>2^{1-k}$ with respect to every large collections of $k$-cliques induced by sets of $(k-2)$-tuples contains a copy of $F$. The required density $2^{1-k}$ is best possible as higher order tournament constructions show. Our result can be viewed as a common generalisation of the first extremal result in graph theory due to Mantel (when $k=2$ and the hereditary density condition reduces to a normal density condition) and a recent result of Glebov, Král', and Volec (when $k=3$ and large subsets of vertices of $H$ induce a subhypergraph of density $>1/4$). Our proof for arbitrary $k\geq 2$ utilises the regularity method for hypergraphs.
description: 38 pages, second version addresses changes arising from the referee reports
Employee Equity Perception Towards Performances Management and Association With Organizational Commitment With References to Federal Government Ministries of Ethiopia
Creators: name: Assefa, Eyerusalem
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The purpose of this study is to examine the relationship between components of organizational commitment and equity perception of public sector employees toward performances management system and practices. Though there are several theoretical and empirical literature on performance management and organizational commitment, there has not been any similar study on public sector organizations in Ethiopian context. Therefore, this study could make important contribution by filling the gaps in studies relating to performance management system and organizational commitment in Ethiopian public sector. Evidence suggests that performance evaluations are often inaccurate and manipulated, thus affecting employee attitudes and behaviors. This study examines the effects of employee perception of performance appraisals and on organizational commitment. Questionnaire was distributed to a sample of One hundred twenty employees of various ages, backgrounds, experiences and both genders were conveniently selected for the questionnaire survey. The questionnaire used for the survey consists of four parts: measures of perception of performance appraisal, affective commitment, normative commitment, continuances commitment and demographic Variables. Correlation model was used to analyze the quantitative data obtained through questionnaire survey and to test the hypotheses in order to examine the effects of performance appraisal system on different aspects of organizational commitment. The results indicated that when employees perceived of performance appraisal ratings as fair in terms of procedural, interactional and distributional justices /equity, all models of organizational commitment increased. Furthermore, when employees perceived performance management as unfair in terms of procedural, interactional and distributional justices /equity, their organizational commitment decreased. Therefore, this study recommends that in order to improve employees" commitment, managers should ensure fairness in performance managment process and avoid unwarranted political intervention and manipulations, uninformed decision, personal bias and unfair distribution of promotion and rewards in an organizations. In addition, the performance appraisal system, evaluation criteria and methods used by public sector organizations should be revised and improved. Key words: Equity perception performances commitment management organizational
華埠通訊 Vol. 10, Issue 07, April 2009
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
Averages of ratios of the Riemann zeta-function and correlations of divisor sums
Creators: name: Conrey, Brian
name: Keating, Jonathan P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We establish a connection between the ratios conjecture for the Riemann zeta-function and a conjecture concerning correlations of convolutions of Möbius and divisor functions. Specifically, we prove that the ratios conjecture and an arithmetic correlations conjecture imply the same result. This provides new support for the ratios conjecture, which previously had been motivated by analogy with formulae in random matrix theory and by a heuristic recipe. Our main theorem generalises a recent calculation pertaining to the special case of two-over-two ratios.
Microstructure and magnetization measurements of the eutectic Fe: FeSb
Creators: name: Picone, Phillip James
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Publieke ruimte onder druk
Creators: name: Hermans, Marianne
Publisher: name: Zenodo
Year: 2022
Subjects: trends
maatschappelijke ontwikkelingen
bibliotheken

description: De uitdagingen op sociaal-maatschappelijk vlak nemen toe: vergrijzing, verstedelijking, groei van het aantal alleenstaanden, het samenleven van mensen met verschillende etnische achtergronden. Het zijn ontwikkelingen die kunnen leiden tot een toenemende tweedeling in de samenleving. De openbare ruimte, waar mensen elkaar terloops tegenkomen, speelt een sleutelrol voor het contact met onbekenden en de blootstelling aan andere culturen en wereldbeelden. Leegstand, privatisering van gebouwen, concurrerende vrijetijdsbesteding en veranderend winkelgedrag zetten de beleving van de publieke ruimte onder druk.
description: Dit artikel was deel van Dossier Trends, geschreven in opdracht van de Koninklijke Bibliotheek
Entwicklung eines integrierten, nanoskaligen Quecksilbersensors auf Basis chemisch abgeschiedener Goldschichten
Creators: name: Keller, Lars Ole
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: Goldnanopartikel
subject: Halbleitertechnologie
subject: Quecksilber
subject: Sensor
subject: 620

description: Eine Verkleinerung der Strukturweiten in der Halbleitertechnik bietet u.a. Vorteile einer höheren Schaltfrequenz und geringeren Gatekapazität. Ein weiterer, auch aus wirtschaftlichem Gesichtspunkt wichtiger Aspekt ist die geringere Fläche eines einzelnen Transistors, aus der eine höhere Packungsdichte und damit bei gleicher Transistoranzahl geringerer Siliziumflächenbedarf resultiert. Um Strukturen in Größenordnungen von sub-100 nm erstellen zu können, sind neben technologischen Aspekten, die verwendeten Lithographiesysteme ein entscheidender Faktor. Im industriellen Halbleiterbereich stellt die Anschaffung aktueller Lithographiesysteme einen erheblichen Kostenfaktor dar. Für öffentliche Forschungseinrichtungen sind diese Geräte schwer zu finanzieren, so dass für die in dieser Arbeit hergestellten nanoskaligen (sub-100 nm) Strukturen das Depositions- und Rückätzverfahren zur Anwendung kommt. Dieses Verfahren ermöglicht es, mittels konventioneller (kostengünstiger) Abscheide- und Ätzanlagen Strukturen im sub-100 nm Bereich zu definieren bzw. zu erstellen. Eine solche, nach dem genannten Verfahren erstellte poly-Siliziumstruktur findet in der vorliegenden Arbeit Anwendung als nanoskaliger Quecksilbersensor. Das Detektionsprinzip basiert auf der Amalgamierung einer wenige zehn Nanometer dicken Goldschicht, aufgebracht auf einem mittels Depositions- und Rückätzverfahrens erstellten sub-100 nm breiten poly-Siliziumsteg, in der zu detektierenden Quecksilberatmosphäre. Als Messgröße wird die aus der Amalgamierung resultierende Änderung des Ohm’schen Widerstandes herangezogen. Bei dem vorgestellten Sensor handelt es sich nicht um einen Wegwerfsensor („Disposalsensor“), das verwendete Prinzip erlaubt vielmehr die Nutzung des Nanostegs als Wärmequelle (Widerstandsheizdraht), wodurch eine Desorption des Quecksilbers von der Goldoberfläche und damit eine Regenerierung des Sensors durchgeführt werden kann. Dies ermöglicht die wiederholte Verwendung des Sensors zur Quecksilberdetektion. Um den finanziellen Aufwand des Herstellungsverfahrens zu minimieren und die von technologischer Seite erforderliche konforme, von allen Seiten den Sensor-Nanosteg umschließende Goldschicht aufzubringen, ist der Ansatz der chemischen Abscheidung in wässriger Lösung in einem zweistufigen Prozess, beginnend mit der Aufbringung einer Nukleationsschicht aus Gold-Nanopartikeln und anschließender Nutzschichtaufwachsung in einer Formierlösung verfolgt und auf seinen Einsatz und Verwendbarkeit hin untersucht und angewendet worden.
Organizational Culture and Its Influence on Employees' Performance: The Case of Ethiopian Insurance Corporation
Creators: name: Matiwos, Mengistu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The aim of the study is to examine the influence of organizational culture on employee performance in Ethiopian Insurance Corporation. Organizations do not exist in a vacuum but in a specific culture or socio-cultural environment that influence the way their employees think, feel, and behave. Work place culture is a very powerful force that influences an employee's work life. The conceptual framework was designed, taking organizational culture as independent variables and employee performance as dependent variable. The organizational culture questionnaire was adopted from Denison (1990) and the employee performance questionnaire was adopted from Linda Koopmans & Claire (2014).For the study the researcher deployed explanatory research design and Simple random sampling was used to draw sample respondents from the six offices and ten directorates of EIC's head office functions. The primary data was gathered through structured questionnaire from 150 current employees of EIC Head office and an interview with office managers and directors in EIC. The collected data was analyzed using statistical package for social science (SPSS) version 24. Both descriptive and inferential analysis was used to see the percentage, mean and standard deviation of demographic states and organizational culture dimensions and was used to see relationship and influence of independent variables on dependent variable respectively. Research findings revealed the significant influence of four dimension of organizational culture such as involvement, consistency, adaptability and mission on employee performance. Thus, the study showed that involvement, consistency and mission were positive relation with employee performance but adaptability was negative relation with employee performance and recommended that the organizations should give emphasis to improve the adaptability dimension of organizational culture by increasing workers creativity and innovation with designing adequate training.
Parallelizing quantum circuit synthesis
Creators: name: Di Matteo, Olivia
name: Mosca, Michele
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum circuit synthesis is the process in which an arbitrary unitary operation is decomposed into a sequence of gates from a universal set, typically one which a quantum computer can implement both efficiently and fault-tolerantly. As physical implementations of quantum computers improve, the need is growing for tools which can effectively synthesize components of the circuits and algorithms they will run. Existing algorithms for exact, multi-qubit circuit synthesis scale exponentially in the number of qubits and circuit depth, leaving synthesis intractable for circuits on more than a handful of qubits. Even modest improvements in circuit synthesis procedures may lead to significant advances, pushing forward the boundaries of not only the size of solvable circuit synthesis problems, but also in what can be realized physically as a result of having more efficient circuits. We present a method for quantum circuit synthesis using deterministic walks. Also termed pseudorandom walks, these are walks in which once a starting point is chosen, its path is completely determined. We apply our method to construct a parallel framework for circuit synthesis, and implement one such version performing optimal $T$-count synthesis over the Clifford+$T$ gate set. We use our software to present examples where parallelization offers a significant speedup on the runtime, as well as directly confirm that the 4-qubit 1-bit full adder has optimal $T$-count 7 and $T$-depth 3.
description: 16 pages, 9 figures
The Impact Of Social Media On The Marketing Performance: The Case Of Commercial Bank Of Ethiopia
Creators: name: Mesfin, Henok
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Social media marketing is a new trend. Tools and approaches for communicating customers have changed greatly with emergence of social media and it has become an avenue that marketers can extend their marketing campaigns to a wider range of consumer. (Paquette H. 2013) The banking industry is fast adapting and utilizing social media technology as competition in the industry is fierce, quality service at low cost becomes common place and they are seeking new and innovative ways to sustain competitive advantage. The purpose of this study is to investigate the impact of social media on the marketing performance of commercial bank of Ethiopia. To this effect one predictor factor (social media) and three dependent variables (real time communication, repeat exposure and competitive advantage) were identified and consumer based attitude scale that contains twenty five items was developed and questionnaires were completed. Assumption and diagnostic tests were done and in the end, social media found to be dominant determinant factor for all the three dependent variables namely real time communication, repeat exposure and competitive advantage towards the effectiveness of marketing performance of commercial bank of Ethiopia
Deep Generative Imputation Model for Missing Not At Random Data
Creators: name: Chen, Jialei
name: Xu, Yuanbo
name: Wang, Pengyang
name: Yang, Yongjian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Data analysis usually suffers from the Missing Not At Random (MNAR) problem, where the cause of the value missing is not fully observed. Compared to the naive Missing Completely At Random (MCAR) problem, it is more in line with the realistic scenario whereas more complex and challenging. Existing statistical methods model the MNAR mechanism by different decomposition of the joint distribution of the complete data and the missing mask. But we empirically find that directly incorporating these statistical methods into deep generative models is sub-optimal. Specifically, it would neglect the confidence of the reconstructed mask during the MNAR imputation process, which leads to insufficient information extraction and less-guaranteed imputation quality. In this paper, we revisit the MNAR problem from a novel perspective that the complete data and missing mask are two modalities of incomplete data on an equal footing. Along with this line, we put forward a generative-model-specific joint probability decomposition method, conjunction model, to represent the distributions of two modalities in parallel and extract sufficient information from both complete data and missing mask. Taking a step further, we exploit a deep generative imputation model, namely GNR, to process the real-world missing mechanism in the latent space and concurrently impute the incomplete data and reconstruct the missing mask. The experimental results show that our GNR surpasses state-of-the-art MNAR baselines with significant margins (averagely improved from 9.9% to 18.8% in RMSE) and always gives a better mask reconstruction accuracy which makes the imputation more principle.
Symmetry Enriched U(1) Topological Orders for Dipole-Octupole Doublets on a Pyrochlore Lattice
Creators: name: Li, Yao Dong
name: Chen, Gang
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: Symmetry plays a fundamental role in our understanding of both conventional symmetry breaking phases and the more exotic quantum and topological phases of matter. We explore the experimental signatures of symmetry enriched U(1) quantum spin liquids (QSLs) on the pyrochlore lattice. We point out that the Ce local moment of the newly discovered pyrochlore QSL candidate Ce$_2$Sn$_2$O$_7$, is a dipole-octupole doublet. The generic model for these unusual doublets supports two distinct symmetry enriched U(1) QSL ground states in the corresponding quantum spin ice regimes. These two U(1) QSLs are dubbed dipolar U(1) QSL and octupolar U(1) QSL. While the dipolar U(1) QSL has been discussed in many contexts, the octupolar U(1) QSL is rather unique. Based on the symmetry properties of the dipole-octupole doublets, we predict the peculiar physical properties of the octupolar U(1) QSL, elucidating the unique spectroscopic properties in the externalmagnetic fields. We further predict the Anderson-Higgs transition from the octupolar U(1) QSL driven by the external magnetic fields. We identify the experimental relevance with the candidate material Ce$_2$Sn$_2$O$_7$ and other dipole-octupole doublet systems.
description: Published version. 6+3 pages, 3+1 figures, 1+1 tables
Antibioprophylaxie péri-opératoire chez les patients allergiques à la pénicilline : quelles avancées ?
Creators: name: Gouel-Chéron, Aurélie
name: Montravers, Philippe
Publisher: name: Health & Co
Year: 2023
Subjects: Antibioprophylaxie péri-opératoire
Allergie à la pénicilline
Réaction d’hypersensibilité
Céphalosporines
Infection site opératoire

description: Aucune stratégie n’est décrite pour la prise en charge de l’antibioprophylaxie péri-opératoire des patients avec une allergie rapportée à la pénicilline, hormis la recommandation d’alternatives thérapeutiques. Or une augmentation du risque d’infection du site opératoire a été rapportée lors de l’utilisation de ces alternatives, ainsi qu’un risque accru d’infection à Staphylococcus aureus résistant à la méticilline et à Clostridioides difficile. La plupart des études épidémiologiques rapportent un taux stable de 10% de patients déclarant être allergique à la pénicilline depuis les années 1990. Les chocs anaphylactiques représentent la forme la plus sévère et surviennent entre 1/10 000 et 1/25 000 procédures anesthésiques. La pénicilline était classiquement l’agent le plus souvent impliqué mais, depuis quelques années, une augmentation des cas d’hypersensibilité à la céfazoline est rapportée dans de nombreux pays. Lorsqu’un patient rapporte une allergie à la pénicilline, beaucoup de praticiens tendent à contre-indiquer l’utilisation de céphalosporines par peur d’une réaction d’hypersensibilité croisée. De nombreuses études rapportent un taux de réactivité croisée entre pénicillines et céphalosporines très faible (≤1%). Différentes stratégies ont été proposées pour améliorer la prescription d’antibiotiques en pré-opératoire en se basant sur le faible risque d’allergie réelle et le faible risque d’allergie croisée aux céphalosporines : la première repose sur la réalisation de tests cutanés en pré-opératoire, la seconde implique une évaluation par un allergologue, la troisième se base sur des questionnaires pré-opératoires et des arbres décisionnels réalisés par les anesthésistes réanimateurs pour guider l’administration de céphalosporines chez les patients se déclarant allergiques à la pénicilline. Cette dernière stratégie nécessite cependant d’être évaluée dans des études cliniques afin de confirmer sa faisabilité, son acceptabilité par les anesthésistes et sa sécurité pour les patients.
Mechanical/thermal dewatering of low-rank coals : optimisation and dynamics of coal structure during the process
Creators: name: Artanto, Yuli
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Probabilistic Knowledge Graph Construction: Compositional and Incremental Approaches
Creators: name: Kim, Dongwoo
name: Xie, Lexing
name: Ong, Cheng Soon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Knowledge graph construction consists of two tasks: extracting information from external resources (knowledge population) and inferring missing information through a statistical analysis on the extracted information (knowledge completion). In many cases, insufficient external resources in the knowledge population hinder the subsequent statistical inference. The gap between these two processes can be reduced by an incremental population approach. We propose a new probabilistic knowledge graph factorisation method that benefits from the path structure of existing knowledge (e.g. syllogism) and enables a common modelling approach to be used for both incremental population and knowledge completion tasks. More specifically, the probabilistic formulation allows us to develop an incremental population algorithm that trades off exploitation-exploration. Experiments on three benchmark datasets show that the balanced exploitation-exploration helps the incremental population, and the additional path structure helps to predict missing information in knowledge completion.
description: The 25th ACM International Conference on Information and Knowledge Management (CIKM 2016)
Chemical composition and antioxidant potentials of Kigelia pinnata root oil and extracts
Creators: name: Adeosun, Charles B.
name: Adeyemi, Stephen O.
name: Akpan, Essiet
name: Atolani, Olubunmi
name: Olatunji, Gabriel A.
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: antioxidant
subject: free radical
subject: GC-MS
subject: Kigelia pinnata
subject: α-tocopherol
subject: 610

description: The chemical composition of Kigelia pinnata root oil extracted with n-hexane was analyzed by GC/GCMS. The antioxidant potential of the oil was compared to that of ethyl acetate and methanol extracts of the root. UV and IR spectroscopic techniques were used to carry out partial characterization of the oil and extracts. The free radical scavenging activity by spectrophotometric assay on the reduction of 1,1-diphenyl-2-picrylhydrazyl (DPPH) was examined while the total antioxidant activity (TAA) and relative antioxidant activity (RAA) were compared with standard antioxidant, α-tocopherol. The antioxidant activity (which correlated with the total phenolic content of the extracts) was assumed to be from the total phenolic content of the extracts. TAA was found to be higher in methanol extract (at 0.25 mg/mL). We hereby report for the first time the major component of the oil from the root of Kigelia pinnata to be elaidic acid (56.12 %). It is a reported toxicant which thereby underscores the risk in the use of the plant in traditional therapies.
description: EXCLI Journal ; Vol. 10, 2011
The Ethics of AI generated artworks
Creators: name: Eshan Divecha
Publisher: name: Zenodo
Year: 2022
Subjects: artificial intelligence
ethics
mechanical reproduction
technical reproduction
Platos cave allegory

description: In this thesis, the learning of Walter Benjamin, Susan Sontag, and John Berger will be used to analyze the ethical implications of AI generated imagery. Walter Benjamin's ideas on the role of mechanical reproduction in art and culture will be particularly relevant in examining the ways in which AI generated imagery challenges traditional understandings of authenticity and originality. Susan Sontag's insights on the ways in which images can be used to shape public opinion and influence collective memory will also be useful in considering the potential political and social consequences of AI generated imagery. Finally, John Berger's writings on the role of the viewer in the creation of meaning in visual media will be invoked to explore the ways in which AI generated imagery invites us to reconsider our relationship to the visual world and to the technologies that mediate it. Through this interdisciplinary approach, this thesis aims to provide a nuanced examination of the ethical and reproductive implications of AI generated imagery in contemporary society.
Impact of centrality on cooperative processes
Creators: name: Reia, Sandro M.
name: Herrmann, Sebastian
name: Fontanari, José F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The solution of today's complex problems requires the grouping of task forces whose members are usually connected remotely over long physical distances and different time zones. Hence, understanding the effects of imposed communication patterns (i.e., who can communicate with whom) on group performance is important. Here, we use an agent-based model to explore the influence of the betweenness centrality of the nodes on the time the group requires to find the global maxima of NK-fitness landscapes. The agents cooperate by broadcasting messages, informing on their fitness to their neighbors, and use this information to copy the more successful agents in their neighborhood. We find that for easy tasks (smooth landscapes), the topology of the communication network has no effect on the performance of the group, and that the more central nodes are the most likely to find the global maximum first. For difficult tasks (rugged landscapes), however, we find a positive correlation between the variance of the betweenness among the network nodes and the group performance. For these tasks, the performances of individual nodes are strongly influenced by the agents dispositions to cooperate and by the particular realizations of the rugged landscapes.
Electrical conductivity in polystyrene [microform]
Creators: name: Pender, Lindsay Francis
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Two cases of bronchiolitis obliterans organizing pneumonia syndrome after postoperative irradiation for breast cancer
Creators: name: Abe, Shuichi
name: Fukuzaki, Koji
name: Inoue, Sumito
name: Kubota, Isao
name: Nishiwaki, Michiko
name: Shibata, Yoko
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: BOOP (bronchiolitis obliterans organizing pneumonia) syndrome
subject: breast cancer
subject: radiation therapy
subject: 610

description: We report two cases of bronchiolitis obliterans organizing pneumonia (BOOP) syndrome that developed after postoperative radiation therapy for breast cancer. In both patients, chest radiographs and computed tomography (CT) showed multiple consolidations outside the irradiation fields after several months of tangential radiation therapy. These patients were diagnosed as having radiation-associated BOOP syndrome, based on their clinical course and the findings on examination. After treatment with a systemic corticosteroid, radiographic consolidations and symptoms improved rapidly. In cases where consolidations appear outside the irradiated field, it is important to consider BOOP syndrome as a pulmonary complication of radiation therapy for breast cancer.
description: EXCLI Journal ; Vol. 10, 2011
On Memory Footprints of Partitioned Sparse Matrices
Creators: name: Langr, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65F50

description: Runtime characteristics of sparse matrix computations and related processes may be often improved by reducing memory footprints of involved matrices. Such a reduction can be usually achieved when matrices are processed in a block-wise manner. The presented study analysed memory footprints of 563 representative benchmark sparse matrices with respect to their partitioning into uniformly-sized blocks. Different block sizes and different ways of storing blocks in memory were considered and statistically evaluated. Memory footprints of partitioned matrices were additionally compared with lower bounds and with the CSR storage format. The average measured memory savings against CSR in case of single and double precision were 42.3 and 28.7 percents, the corresponding worst-case savings 25.5 and 17.1 percents. Moreover, memory footprints of partitioned matrices were in average 5 times closer to their lower bounds than CSR. Based on the obtained results, generic suggestions for efficient partitioning and storage of sparse matrices in a computer memory are provided.
نحو التنمية الواعية بالمخاطر والاستثمار في بناء القدرة على الصمود في بلدان المغرب العربي-حتمية ما بعد جائحة فيروس كورونا كوفيد-19 (تصور مقترح)
Creators: name: خلوفي, سفيان
Publisher: name: figshare
Year: 2023
Subjects: Environment and resource economics
International economics
Welfare economics
Health economics

description: هدفت هذه الدراسة إلى البحث في إشكالية تحقيق أهداف التنمية المستدامة في بلدان المغرب العربي في ظل تفشي جائحة فيروس كورونا كوفيد-19 المستجد (سنة 2020)، وحتمية التوجه نحو التنمية الواعية بهذه المخاطر الوبائية المتأصلة التي تظهر وتتلاشي وتتحول وتضرب من جديد، حيث خلصت هذه الدراسة إلى أن التنمية الواعية بالمخاطر والتنمية المستدامة تشكل آلية عمل متكاملة ومتداخلة تساهم في تعزيز قدرة المجتمعات على الصمود ومواصلة الرحلة نحو التنمية بكل ثقة في النواحي الاقتصادية والاجتماعية والبيئية والمحافظة على الموارد في ظل المخاطر والأزمات والكوارث المتكررة. واستنادًا إلى النتائج المتوصل إليها فقد أوصت الدراسة بعدد من التوصيات من أهمها: تجهيز بيئة تنظيمية وتعريف العمليات الضرورية لفهم الحد من مخاطر الأوبئة العالمية على مستوى جميع بلدان المغرب العربي، مع ضمان وجود خطط مشتركة بينها مستقبلاً لإدارة المخاطر وفقًا لسيناريوهات وتوقعات مستقبلية، والعمل أكثر على محور التعافي السريع وإعادة البناء بعد انحصار المخاطر. الكلمات المفتاحية: تنمية مستدامة، تنمية واعية، قدرة على الصمود، مغرب عربي، جائحة فيروس كورونا كوفيد-19 This study aimed to investigate the problem of achieving the sustainable development goals in the countries of the Maghreb in light of the outbreak of the new Corona virus Covid-19 (year 2020), and the imperative of moving towards development aware of these inherent epidemiological risks that appear, fade, transform and strike again. This study concluded that risk-aware development and sustainable development constitute an integrated and interconnected mechanism of action that contributes to enhancing the resilience of societies and continuing the journey towards development with confidence in the economic, social and environmental aspects, and preserving resources in light of recurring risks, crises and disasters. And based on the findings, the study recommended a number of recommendations, the most important of which are: preparing a regulatory environment and defining the processes necessary to understand risk reduction of global epidemics at the level of all countries of the Maghreb, while ensuring that there are joint plans between them in the future to manage risks according to future scenarios and expectations, and work more on the axis of rapid recovery and rebuilding after the risks are confined. Keywords: Sustainable development, conscious development, resilience, Maghreb Arab, the Corona virus Covid-19 pandemic.
Business Process Re-Engineering Challenges and Opportunities for Enhance Service Delivery at Yirgalem Hospital
Creators: name: Wondmneh, Fitih
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2010

description: Business Process Reengineering (BPR) is practiced in so many organizations of different countries to improve the efficiency of any organization by automating its business process through re-engineering. Currently in Ethiopia, hospitals are adopting the concept of BPR. Yirgalem hospital is one of the public hospitals in Ethiopia that has started the implementation of BPR to enhance service delivery. The major objective of this research is to assess the challenges and opportunities of BPR for enhance service delivery at Yirgalem hospital. The study has employed the descriptive research method in order to perceiving challenges and opportunities in the enhancement of service delivery during the implementation of BPR. Analysis of the data collected shows lack of understand/awareness of the employee about the benefit, objectives and principles of the BPR; inadequacy of facilities, equipment, human power and medical supplies in the hospital; in addition to lack of information technology and poor measures of costs and benefits, quality and speed of service, communication, commitment of leaders and organizational learning. To improve the efficiency of service delivery, the following capacity building measures are recommended. Training, addressing shortage of facilities and equipment, research/ assessment on employee attrition, improving communication, leadership development, employees work environment, remuneration and outsourcing some of its activities. The management of the hospital builds internal and external benchmarking allows the transfer of learning from one re- engineering process to another in the same organization
A new fractional operator of variable order: application in the description of anomalous diffusion
Creators: name: Yang, Xiao-Jun
name: Machado, J. A. Tenreiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, a new fractional operator of variable order with the use of the monotonic increasing function is proposed in sense of Caputo type. The properties in term of the Laplace and Fourier transforms are analyzed and the results for the anomalous diffusion equations of variable order are discussed. The new formulation is efficient in modeling a class of concentrations in the complex transport process.
description: 2 figures, 13 pages
The Effect Of Physical Distribution Service On Customer Satisfaction (The Case Of Moha Soft Drinks Industry S.C. Tekelehaimnot Plant)
Creators: name: Mengistu, Daniel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The purpose of this paper is to investigate the effect of physical distribution service on customer satisfaction in the case of Moha Soft Drinks Industry S.C. Tekelehaimnot Plant. A structured questionnaire was adopted. A quantitative research approach was implemented, and the hypotheses were also tested on a sample of 341 customers out of 377 distributed, giving a valid response rate of 90.5% percent. The questionnaires were analyzed using Cronbach Alpha, descriptive statistics, correlation & regression. The application used to analyze and examine the hypotheses is the Statistical Package for Social Sciences (SPSS) V.20. The findings of independent variable of descriptive statistics has shown that, the mean score of Physical distribution service variables i.e Product Availability, PDS Timeliness, PDS Quality, PDS Flexibility has been 3.94, 3.75, 3.71 & 3.61 respectively. All selected dimensions of physical distribution service independent variables have a significant correlation with the dependent variable "overall customer satisfaction" with 95% confidence interval & at 0.05 p-value, by scoring a Pearson Correlation Coefficient "R-value" value of 0.667**, 0.582**, 0.544** & 0.534** respectively. In this case relatively product availability had a higher strong relationship with overall customer satisfaction than the other three independent variables & the linear combination of physical distribution service predictors' (independent variables) explains 57.3% of the variance in customers' purchases decision. In addition to correlation analysis, further regression analysis was also conducted, and the result indicates that all the selected dimensions of physical distribution service have significant relation with overall customer satisfaction. Finally, the results are useful in identifying physical distribution service focus areas to help Moha Soft Drinks Industry S.C. Tekelehaimnot Plant marketing strategy. As evident from the finding section that, Moha Soft Drinks Industry S.C. Tekelehaimnot Plant is recommended to fully implement physical distribution service dimensions effectively to attract customers that make purchase decision and to increase the sales volume. physical distribution service is one of the competitive advantage area for Moha Soft Drinks Industry S.C. Tekelehaimnot Plant to remain competitive in the soft drinks industry
Frequentist model comparison tests of sinusoidal variations in measurements of Newton's gravitational constant
Creators: name: Desai, Shantanu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Anderson et al have claimed to find evidence for periodic sinusoidal variations (period=5.9 years) in measurements of Newton's Gravitational constant. These claims have been disputed by Pitkin. Using Bayesian model comparison, he argues that a model with an unknown Gaussian noise component is favored over any periodic variations by more than $e^{30}$. We re-examine the claims of Anderson et al using frequentist model comparison tests, both with and without errors in the measurement times. Our findings lend support to Pitkin's claim that a constant term along with an unknown systematic offset provides a better fit to the measurements of Newton's constant, compared to any sinusoidal variations.
description: 4 pages, 1 figure