cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On hereditary coreflective subcategories of Top
Creators: name: Sleziak, Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Topology (math.GN)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 54B30 (Primary) 18B30 (Secondary)

description: Let A be a topological space which is not finitely generated and CH(A) denote the coreflective hull of A in Top. We construct a generator of the coreflective subcategory SCH(A) consisting of all subspaces of spaces from CH(A) which is a prime space and has the same cardinality as A. We also show that if A and B are coreflective subcategories of Top such that the hereditary coreflective kernel of each of them is the subcategory FG of all finitely generated spaces, then the hereditary coreflective kernel of their join CH(A \cup B) is again FG.
title: Unterrichtsmodell zur Entwicklung von Informationskompetenz bei Schülern der gymnasialen Oberstufe
Creators: name: Klingenberg, Andreas
Publisher: name: Hochschule Hannover
Year: 2011
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die vorliegende Arbeit untersucht, welche Rolle Schulen bei der Entwicklung von Informationskompetenz spielen können. Ergebnis ist ein Unterrichtsmodell für Schüler der gymnasialen Oberstufe. Ausgehend von der Definition der Informationskompetenz werden zunächst die Angebote von Schulbibliotheken, Öffentlichen und Wissenschaftlichen Bibliotheken zur Vermittlung von Informationskompetenz an Schüler untersucht. Erfolgversprechende Konzepte, die diesen Schulungen zugrunde liegen, werden genauer betrachtet. Die dokumentierte Durchführung einer Rechercheeinführung für Schüler in Vorbereitung auf die Facharbeit liefert weitere, praxisbezogene Anhaltspunkte. Der zweite Teil der Arbeit umfasst das eigentliche Unterrichtsmodell zur Vermittlung von Informationskompetenz. Nach ausführlichen Vorüberlegungen zu materiellen und didaktischen Fragen folgen schließlich konkrete Vorschläge für einzelne Unterrichtseinheiten. Die Arbeitsblätter im Anhang der Arbeit geben Anregungen zur Gestaltung von Unterrichtsmaterialien.
Lattice theory for nonrelativistic fermions in one spatial dimension
Creators: name: Endres, Michael G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I derive a loop representation for the canonical and grand-canonical partition functions for an interacting four-component Fermi gas in one spatial dimension and an arbitrary external potential. The representation is free of the "sign problem" irrespective of population imbalance, mass imbalance, and to a degree, sign of the interaction strength. This property is in sharp contrast with the analogous three-dimensional two-component interacting Fermi gas, which exhibits a sign problem in the case of unequal masses, chemical potentials, and repulsive interactions. The one-dimensional system is believed to exhibit many phenomena in common with its three-dimensional counterpart, including an analog of the BCS-BEC crossover, and nonperturbative universal few- and many-body physics at scattering lengths much larger than the range of interaction, making the theory an interesting candidate for numerical study. Positivity of the probability measure for the partition function allows for a mean-field treatment of the model; here, I present such an analysis for the interacting Fermi gas in the SU(4) (unpolarized, mass-symmetric) limit, and demonstrate that there exists a phase in which a continuum limit may be defined.
description: 12 pages, 6 figures, references added
The Macroeconomics of Transition: The Comparative Experience of Seven Transition Economies
Creators: name: McKinley, Terry
Publisher: name: Columbia University
Year: 2004
Subjects: Managerial economics
Economics

description: Through reviewing the experience of seven countries (Armenia, Cambodia, China, Kyrgyz Republic, Mongolia, Uzbekistan and Vietnam), this paper draws general lessons on the macroeconomic and adjustment policies that are best suited to foster growth, employment and poverty reduction under conditions of transition from centrally planned to regulated, market-based economies. The state-led, export-oriented transition strategies of China and Vietnam have been the most successful. They have opened their economies gradually and been cautious in liberalizing their financial systems and capital accounts and privatizing their state-owned enterprises. While their fiscal policies have been expansionary, their monetary policies have tended to be more restrictive. Also, neither has opted for a completely flexible exchange rate regime. While Cambodia has also followed an export-led strategy, the state's management of the economy has been much weaker. It has rapidly liberalized its current and capital account and made itself perilously dependent on external demand and development assistance. As a consequence, the Government has little control over fiscal and monetary policies. Armenia, Kyrgyz Republic and Mongolia have implemented "shock therapy" policies, rapidly privatizing and liberalizing their economies, and experiencing, as a result, catastrophic drops in output and incomes. Swift trade liberalization has led to de-industrialization and ballooning trade deficits. Even during recovery, these countries have had restrictive fiscal and monetary policies, hampering their prospects for growth, employment and poverty reduction. By contrast, Uzbekistan has been cautious in opening up and liberalizing its economy, following an import-substitution strategy instead of one oriented to exports. Its state-managed transition strategy has dictated a slow process of trade liberalization, financial liberalization and privatization. By actively using counter-cyclical fiscal and monetary policies, it has achieved macroeconomic stabilization without experiencing a severe recession.
title: Hans im Glück oder das Problem des Werts : Abschlussvorlesung am 15. Juni 2011 in Hannover
Creators: name: Buchholz, Günter
Publisher: name: Hochschule Hannover
Year: 2011
Subjects: subject: 330 Wirtschaft

description: Abschlussvorlesung von Günter Buchholz, in welcher er sich über das Grimmsche Märchen "Hans im Glück" dem Problem des Wertes zuwendet und sich mit der Geschichte der ökonomischen Theorie befasst.
description: Arbeitspapier / Hochschule Hannover, Fakultät IV, 07-2011
title: Formale Basisanforderungen an Bachelorarbeiten/Masterarbeiten
title: Bachelortheses/mastertheses - Formal Standards
Creators: name: Seibold, Sven M.
name: Linssen, Ruth
name: Schnitzler, Carolina C.
Publisher: name: Hochschule Hannover
Year: 2011
Subjects: subject: 000 Allgemeines, Wissenschaft

description: In dem Text werden allgemeine Anforderungen an Bachelorarbeiten/Masterarbeiten erläutert. Zunächst wird auf formale Anforderungen eingegangen wie beispielsweise Aufbau, Formatierung, Titelblatt, Verzeichnisse, Anhang. Es folgt eine knappe Einfährung in Quellentypen, Quellensuche, Quellenangaben sowie Quellenkritik.
Human Development Advocacy for Debt Relief, Aid, and Governance
Creators: name: Northover, Henry
Publisher: name: Columbia University
Year: 2008
Subjects: Managerial economics
Economics

description: This chapter looks at some of the policy positions that underpinned the Jubilee 2000 campaign. While the arguments of debt campaigners were, at the time, dismissed as the politics of naïve idealists, they soon became part of the new realism in official debt policy. How did this shift come about? And, going forward, what are the key features that can usefully inform official aid and debt policy frameworks? The impulse behind the international Jubilee 2000 campaign was fundamentally one of social justice. In the UK, where the campaign first began, it was driven mostly by the Churches and faith-based aid agencies moved by moral and ethical considerations. It was about bringing to an end the perceived global economic injustice of those in developing countries with the least resources, saddled with unpayable debts, having their development prospects thwarted by the diversion of scarce resources to those in the developed world that already had the most. The imagery drawn on in some of the campaign's earliest publications was of a bonded servitude, enslavement to an unjust economic order.3 While its moral call was grounded in some analysis of the flows of finance from the world's poorest countries to the world's richest creditors, it was essentially very much a campaign driven by moral imperatives.
title: Die Zukunft der Hochschulen : politische Ökonomie der Hochschulpolitik in der Ära des Finanzmarkt-Kapitalismus
Creators: name: Buchholz, Günter
Publisher: name: Hochschule Hannover
Year: 2012
Subjects: subject: 370 Erziehung, Schul- und Bildungswesen

description: Das deutsche Bildungssystem - Hochschulen und Schulen - befindet sich seit Beginn der 90er Jahre des 20. Jahrhunderts in einem von den ökonomischen und politischen Eliten gewollten Transformationsprozess. Das bisher staatliche Hochschulsystem verliert dabei schrittweise seinen Charakter als öffentliches Gut und entwickelt sich hin zu einem formell halbstaatlichen Teilsystem unter indirekter Kontrolle der privaten Wirtschaft. Für diese Umgestaltung wird es nach dem Vorbild der privaten Wettbewerbswirtschaft reorganisiert, ökonomisch rationalisiert und technokratisch gesteuert. Zugleich wird es einer internen Partizipation wie einer externen parlamentarischen Kontrolle entzogen.
description: Arbeitspapier / Hochschule Hannover, Fakultät IV, 176
The Strategic Logic of Japanese Keiretsu, Main Banks and Cross-Shareholdings, Revisited
Creators: name: Schaede, Ulrike
Publisher: name: Columbia University
Year: 2006
Subjects: Commerce

description: This paper introduces recent fundamental changes in Japan's political economy, and analyzes how these have affected the country's industrial architecture in terms of business group organization. Whereas previously, long-term, stable relations with other firms, banks and shareholders afforded great advantage to many companies, the new dynamic environment has led more and more banks and companies to turn away from stable "insurance" arrangements. The paper shows that a revision of corporate law towards more managerial flexibility paired with broader powers by shareholders matches this shift towards greater transparency, accountability, and competitive strategic positioning. Therefore, processes of corporate governance are also greatly altered. Our perceived wisdom of Japanese business organization needs to be updated.
title: Die Bedeutung der neoliberalen Transformation des Arbeitsmarktes für das gegenwärtige Hochschulstudium
Creators: name: Buchholz, Günter
Publisher: name: Hochschule Hannover
Year: 2012
Subjects: subject: 330 Wirtschaft

description: Vortrag an der Fakultät V der Fachhochschule Hannover am Mittwoch, den 19. Oktober 2011.
A comparative study of Japanese plants operating in the U.S. and American plants: Recruitment, job training, wage structure and job separation
Creators: name: Higuchi, Yoshio
Publisher: name: Columbia University
Year: 1987
Subjects: Economics
Commerce

description: This study compares recruitment, job training, wage structure, and labor mobility of Japanese plants operating in the U.S. (JPUS plants) with local American owned plants. In the Japanese labor market, the job separation rate is remarkably lower and the wage-tenure profile is steeper than in the United States (see section II). This observation has been interpreted mainly through two theories: the view which stresses the cultural and traditional value of company loyalty, and the perspective which places a strong emphasis on the role of job training. However, studies relying only on international comparisons conclude that it is very difficult to distinguish between cultural and economic related factors. By looking at the JPUS plants (which employ American workers), this analysis strives to separate cultural influences from the influences of technology and production systems. This paper statistically examines the following: (1) whether there are differences in modes of recruitment and job training between the JPUS plants and other American plants, and (2) if so, how these differences influence individual wage growth and job separation rate.
title: Flexwork im Kontext der Burnout-Forschung
title: Flexwork in the context of Burnout-Research
Creators: name: Rommel, Marius
name: Eßmann, André
name: Fischer, Jennifer
name: Spohr, Mirjam
name: Witte, Anne
Publisher: name: Hochschule Hannover
Year: 2012
Subjects: subject: 150 Psychologie

description: In dieser Arbeit wird das Thema Flexwork im Kontext der Burnout-Forschung vorgestellt. Der Fokus liegt hierbei auf potentiell negativen Folgen des Flexwork. Ziel dieser Ausarbeitung ist es, das Konstrukt des Flexwork konkreter zu fassen und zu untersuchen, ob das Burnout-Syndrom eine spezifische Folge von Flexwork sein kann. Zunächst werden einschlägige theoretische Grundlagen erläutert. Nach einer Einführung in die methodische Vorgehensweise qualitativer und quantitativer Forschungsinstrumente werden die Interviewergebnisse dargestellt. Anschließend wird der Entwurf für einen Fragebogen vorgestellt, der das Ziel hat, zu erfassen, ob und inwiefern Flexwork einen Auslöser für das Burnout-Syndrom darstellt. Im Diskussionsteil dieser Projektarbeit erfolgen eine kritische Betrachtung der methodischen Vorgehensweise sowie eine zusammenfassende Bewertung der Thematik.
description: This research report approaches the subject of Flexwork in the context of Burn-out-Research. The focus lies on the underlying negative effects of Flexwork. The key objective of this paper is to specify the construct of Flexwork and to analyze whether the Burnout-Syndrome can be a specific consequence of Flexwork. Initially, theoretical fundamentals are elucidated. After an introduction into the methodological procedure of qualitative and quantitative instruments of research, the interview-results are illustrated. Subsequently, a blue-print of a questionnaire with the goal of measuring whether or not Flexwork can be seen as an actuator of the Burnout-Syndrome is presented. In the discussion, a critical consideration of the methodological procedures and an overall conclusion is given.
Japan's internal debt
Creators: name: Beim, David O.
Publisher: name: Columbia University
Year: 2002
Subjects: Economics
Commerce

description: Does internal debt matter? Japan's yen-denominated public debt now totals 140% of GDP, and this number continues to rise rapidly. What constraints will this growing debt finally encounter? I argue that finance can postpone but not eliminate payments owed by the government to the private sector. The combination of continuing Keynsian budget deficits, bleeding banks, overleveraged municipalities and massive pension liabilities will ultimately bring into question the credibility of the government's many promises. The result could be a massive issuance of new currency.
Measurements, quantum discord and parity in spin 1 systems
Creators: name: Rossignoli, R.
name: Matera, J. M.
name: Canosa, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the evaluation of the quantum discord and other related measures of quantum correlations in a system formed by a spin 1 and a complementary spin system. A characterization of general projective measurements in such system in terms of spin averages is thereby introduced, which allows to easily visualize their deviation from standard spin measurements. It is shown that the measurement optimizing these measures corresponds in general to a non-spin measurement. The important case of states that commute with the total $S_z$ spin parity is discussed in detail, and the general stationary measurements for such states (parity preserving measurements) are identified. Numerical and analytical results for the quantum discord, the geometric discord and the one way information deficit in the relevant case of a mixture of two aligned spin 1 states are also presented.
description: 6 pages, 2 figures, References added
It takes more than a bubble to become Japan
Creators: name: Posen, Adam
Publisher: name: Columbia University
Year: 2003
Subjects: Economics
Commerce

description: Did monetary ease in the 1980s cause Japan's bubble, as is often suggested? Drawing on both a new cross-national consideration of the monetary policy-asset price linkage and a re-examination of what actually occurred in Japan 1985-1990, I conclude the bubble was just as likely to occur whatever monetary policy within reason would have done. Did the bubble's burst cause Japan's Great Recession? In fact, Japan's recession of 1990-94 was mild, and only a combination of policy mistakes turned this normal recession into extended stagnation. This is borne out by cross-national investigation suggesting the frequency of extended downturns following asset booms is relatively low. Comparing the post-bubble response of the US and Japanese economies, did the bubble itself impede restructuring? Given very different responses in the two economies to similar bubbles, a bubble itself is not sufficient to cause real-side disruption. What central bankers should learn from Japan's bubble is the benefits of a more thoughtful approach to assessing potential growth and of easing rapidly in the face of asset price declines, not any concern for targeting asset prices per se.
title: Vignettentechnik: Einfluss des Geschlechts der Vignettenprotagonisten auf die Korruptionsbewertung
title: Vignette technique: Influence of gender of the vignette protagonist on the corruption rating
Creators: name: Heber, Frank
Publisher: name: Hochschule Hannover
Year: 2013
Subjects: subject: 300 Sozialwissenschaften, Soziologie, Anthropologie

description: Die Studie basiert auf einem Experiment, bei dem Einflussfaktoren auf Korruptionsbereitschaft untersucht wurden. Es wurden personale und situative Einflussfaktoren berücksichtigt. Mithilfe eines 2x2x2-Vignettendesigns wurden die situativen Einflussfaktoren operationalisiert und methodenkritisch überprüft, ob eine homogene Geschlechtswahl der Vignettenprotagonisten die Antworten der Versuchspersonen beeinflusst. Befragt wurden 171 Studierende der Betriebswirtschaftslehre. Es konnten keine statistisch signifikanten Effekte nachgewiesen werden, die schlussfolgern ließen, dass die Versuchspersonen in ihren Antworten durch die homogene Geschlechtswahl der Vignettenprotagonisten beeinflusst wurden. Die Versuchspersonen wählten ihre Antworten unabhängig davon, ob eine Vignette mit weiblichen Protagonisten oder eine Vignette mit männlichen Protagonisten vorlag.
description: The study bases on an experiment of factors, which influence the willingness to act corrupt. Personal and situational factors were taken into account. The situational factors have been operationalized by using a 2x2x2-vignette design. It has been examined, whether a homogenous gender designation, of protagonists in a vignette, affect the response behavior of the subjects. 171 students of business administration had been interviewed. No statistically significant effects were detected which allow the conclusion, that the subjects have been influenced in their response behavior by a homogenous gender choice of the vignette protagonists. The subjects selected their responses regardless of whether a vignette with female protagonists or a vignette with male protagonists was chosen.
Stock index autocorrelation and cross-autocorrelations of the size-sorted portfolios in the Japanese market
Creators: name: Iwaisako, Tokuo
Publisher: name: Columbia University
Year: 2003
Subjects: Economics
Commerce

description: Following Lo and MacKinlay's works on the U.S. market (1988, 1990), this paper studies the autocorrelation of the market index and the cross-autocorrelations of the size-sorted portfolios in the Japanese market. The structure of the crossautocorrelations in the Japanese market is found to be very similar to that of the U.S. in the sense that there exists lead-lag relations running from larger stocks to smaller stocks and they will create positive autocorrelation in the market index. Although we find no autocorrelation in the popular Japanese market index such as TOPIX, it is because TOPIX puts much more weight on larger stocks compared with CRSP index for the U.S. market. However, recently such a structure of the Japanese market has become unstable and I argue the fact that it is the largest stocks which began to show negative autocorrelation since the second half of the 1990s that will explain it.
Crystalline anisotropic magnetoresistance with two-fold and eight-fold symmetry in (In,Fe)As ferromagnetic semiconductor
Creators: name: Hai, Pham Nam
name: Sasaki, Daisuke
name: Anh, Le Duc
name: Tanaka, Masaaki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the anisotropic magnetoresistance (AMR) of (In,Fe)As ferromagnetic semiconductor (FMS) layers grown on semi-insulating GaAs substrates. In a 10 nm-thick (In,Fe)As layer which is insulating at low temperature, we observed crystalline AMR with two-fold and eight-fold symmetries. In a metallic 100 nm-thick (In,Fe)As layer with higher electron concentration, only two-fold symmetric crystalline AMR was observed. Our results demonstrate the macroscopic ferromagnetism in (In,Fe)As with magnetic anisotropy that depends on the electron concentration. Non-crystalline AMR is also observed in the 100 nm-thick layer, but its magnitude is as small as 10^-5, suggesting that there is no s-d scattering near the Fermi level of (In,Fe)As. We propose the origin of the eight-fold symmetric crystalline anisotropy in (In,Fe)As.
title: Consulting – Erhebungsmethoden und Erhebungsmix
title: Consulting survey methods and the mix of survey methods
Creators: name: Bechmann, Jascha
Publisher: name: Hochschule Hannover
Year: 2013
Subjects: subject: 650 Management

description: „Jedes Problem, an dem Menschen oder Organisationen beteiligt sind, hat – wie eine Zwiebel – verschiedene Schichten“. Unternehmensberater versuchen solche Schichten bei einer gegebenen Problemstellung zu erkennen, um dieses Problem am Ende lösen zu können. Auch sind etwaige kritisch durchdachte Lösungsvorschläge denkbar, welche zu einer Optimierung eines Sachverhaltes führen. Für die Lösungsfindung eines Problems, ist es notwendig, relevante Daten zu erheben. Anhand der gewonnenen Informationen kann ein Gesamtbild über die Sachlage entstehen. Informationen müssen vollständig und qualitativ verwertbar sein – so ist das Vordringen in verschiedene Schichten einer Problemstellung möglich, wobei hier u. U. erst das „wirkliche“ Problem erkannt wird, welches sich zum Beispiel durch Folgeerscheinungen „verdeckt“ halten konnte. Demnach spielen die Consulting – Erhebungsmethoden für den Erkenntnisgewinn einer Lösungsfindung im Rahmen der Ist- Analyse, eine fundamentale Rolle. Welche Erhebungsmethoden sind wann, wo und wie sinnvoll? Gibt es den einen „richtigen“ Erhebungsmix? Welche Kriterien und Einflüsse gilt es bei der Erhebungsauswahl zu berücksichtigen? Festzustellen ist, dass dieses Thema in solch einer zusammengebunden Form noch nicht bearbeitet wurde und nochmals die Komplexität verdeutlicht.
description: „Every problem facing persons or organizations has layers, like an onion“. Consultants are trying to identify such layers in a problem to solve it at the end. Also, any critical thought through solutions are possible, which lead to an optimization of an issue. To find a solution to a problem, it is necessary to gather relevant data so that by using the information obtained, an overall picture of the situation can arise. Such must be complete and qualitatively usable, because this is the only way to advance into different layers of a problem; this is when the "real" problem could emerge, which could possibly be hidden by after effects. This suggests that the consulting survey methods play a fundamental role in gaining insights in finding a solution in the settlement of the is-analysis. Which survey methods are when, where and how useful? Is there one "right" mix of survey methods? What criteria and factors are to be considered when selecting the method choice? It is noted that this issue tied up in such a form was not yet dealt with which again illustrates the complexity.
Team Production Effects on Earnings
Creators: name: Idson, Todd
Publisher: name: Columbia University
Year: 1993
Subjects: Labor economics

description: The effects of team production on earnings is examined using the 1973 Quality of Employment Survey. I find that the earnings of nonunion workers are positively related to (1) team size, (2) the extent to which supervisors encourage team work, and (3) the helpfulness of members of the team. These results are robust to controls for establishment size, characteristics of the worker, and both industry and occupation.
title: The missing link, Samuel Butler and the theory of evolution : design, physiology and psychology of the unconscious in Victorian Britain
Creators: name: Turbil, Cristiano
Publisher: name: University of Kent
Year: 2021

description: This thesis argues that Samuel Butler's evolutionary work represented one of the most eccentric and enlightening alternatives to 'natural selection'. In his scientific research, the English writer used 'memory' as a justification of the process of heredity. This represented, at the turn of the twentieth-century, a shift from the mechanical approach to natural selection to an idea of evolution based on a psychophysiological process. First, my work addresses the methodological difficulties that occur in placing Butler's work within the late Victorian debate. Neither the Victorians themselves, nor subsequent scholars, have known what to make of Butler, most usually attempting to place him in the category of literature whilst ignoring the substance of his scientific work. Looking at the reception of Butler's ideas in England and Europe, and critically discussing the problem of Butler's identity in the context of contemporary scholarship, I create a new picture of Butler as a Victorian amateur 'scientist'. Second, this research discusses Butler's popularisation of science, looking at his use of language, style and form in his fictional and non-fictional works. It also discusses Butler's work of translation and his popularisation of European scientific hypotheses within the British 'marketplace' of science. Third and finally, this work explores Butler's hypothesis of unconscious memory in relation to similar cases in Europe. Looking at the French and German psychophysiological debate, it places Butler's evolutionary work in a pan-European context. Overall, this thesis attempts to create a three-dimensional intellectual image of Butler as writer and participant in science, and in doing so finds that Butler is a problem case who tests the edges of scholarship in history and literature of nineteenth-century science.
Observation of $D^+ \rightarrow K^{+} η^{(\prime)}$ and Search for CP Violation in $D^+ \rightarrow π^+ η^{(\prime)}$ Decays
Creators: name: Won, E.
name: Ko, B. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the first observation of the doubly Cabibbo-suppressed decays $D^+ \rightarrow K^+ η^{(\prime)}$ using a 791 fb$^{-1}$ data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed $D^+ \rightarrow π^+ η^{(\prime)}$ decays are $\mathcal{B}(D^+ \rightarrow K^+ η)/\mathcal{B}(D^+ \rightarrow π^+ η)$ = (3.06 $\pm$ 0.43 $\pm$ 0.14)% and $\mathcal{B}(D^+ \rightarrow K^+ η')/\mathcal{B}(D^+ \rightarrow π^+ η')$ = (3.77 $\pm$ 0.39 $\pm$ 0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in $D^+$ decays, $δ_{TA}$, is (72 $\pm$ 9)$^\circ$ or (288 $\pm$ 9)$^\circ$. We also report the most precise measurements of CP asymmetries to date: $A_{CP}^{D^+ \rightarrow π^+ η}$ = (+1.74 $\pm$ 1.13 $\pm$ 0.19)% and $A_{CP}^{D^+ \rightarrow π^+ η'}$ = ($-$0.12 $\pm$ 1.12 $\pm$ 0.17)%.
description: 6 pages, 2 figures, 3 tables. Published in PRL
Modeling of the transistor vertical cavity surface emitting laser
Creators: name: Faraji, Behnam
Publisher: name: University of British Columbia
Year: 2011

description: The direct modulation of semiconductor lasers has many applications in data transmission. However, due to the frequency response it has been challenging to use directly modulated lasers for high speed digital transmission at bit-rates above 10 Gbps. With this in mind, designing a laser with a large modulation bandwidth to be used in high data-rate optical links is very important. Transistor lasers (TLs) are a potential candidate for this purpose. Based on these motivations, the main focus of this PhD research is on understanding the physics of the TL and predicting its performance. A detailed model that correctly incorporates the transistor effects on laser dynamics did not exist. The previous models do not differentiate between the bulk carriers and the quantum well (QW) carriers in the rate equations, do not include the effects of the capture and escape lifetimes in the QW, and significantly overestimate the bandwidth. To account for these phenomena, a model has been developed to study the dynamics of the TL. The model is based on the continuity equation in the separate confinement hetero-structure region of the conventional laser and the base region of the TL. It uses the quantum mechanical escape and capture of carriers in the quantum well region and the laser rate equations to model the laser operation. The model has been used to gain insight into the conventional separate confinement hetero-structure lasers, and the results of the model have been compared with the experimental results obtained for 850 nm vertical cavity surface emitting lasers(VCSELs). Analytical expressions have been derived for DC and AC parameters of the TL operating in common-base and common-emitter configurations. It has been shown that the TL operating in the common-emitter configuration has a similar modulation bandwidth as a conventional laser (~ 20 GHz). The common-base configuration, on the other hand, has a very large small-signal modulation bandwidth (> 40 GHz) due to bandwidth equalization in the TL. The large-signal performance of the TL has been studied. Finally, it has been shown that the common-emitter configuration with feedback has improved bandwidth by a factor of 1.5 in high bias currents.
Dyck tableaux
Creators: name: Aval, Jean-Christophe
name: Boussicault, Adrien
name: Dasse-Hartaut, Sandrine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this work, we introduce new combinatorial objects called Dyck tableaux, which present a natural insertion algorithm. These tools may be useful to describe statistics which are relevant in the study of the physical model named PASEP.
Supplementary document for Optical spin-orbit interaction in spontaneous parametric down conversion - 6281393.pdf
Creators: name: Li, Guixin
name: Wu, Yunkun
name: Tang, Yutao
name: Hu, Zixian
name: Feng, Lantian
name: Guo, Guang-can
name: Ren, Xifeng
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary material
Reliability, Validity and Measurement Invariance of the WHO’s Quality of Life Scale among Women of Reproductive Age Living with HIV in Ethiopia - a Quasi-Experimental Study
Creators: name: Whetten, Kathryn
name: Fried, Bruce J.
name: Thomas, James C.
name: Zimmer, Catherine
name: Morrissey, Joseph P.
name: Agala, Chris B.
name: Reynolds, Heidi W.
name: Lich, Kristen Hassmiller
Publisher: name: Springer Nature
Year: 2020

description:
Despite its widespread global adoption and use, studies have not examined measurement invariance of the 31-question World Health Organization Quality of Life–HIV BREF scale among HIV/AIDS patients. The current study seeks to (a) evaluate the scale’s internal consistency reliability, and concurrent validity, and (b) test if the same latent construct of quality of life was consistently measured at two time-points, for a sample of HIV-positive women from two sites in Addis Ababa, Ethiopia. The study used data from two cross-sectional interviews with 926 HIV-positive women of reproductive age who participated in a quasi-experimental study. All participants were receiving antiretroviral therapy and related treatment support services from 51 service providers in two non-contiguous sub-cities. We used One-Way ANOVA, chi square test and Kruskal Wallis test to compare demographic characteristics and quality of life scores of study participants. Further, we used Cronbach’s coefficient alpha (α) to assess internal consistency reliability and Pearson product-moment correlation (r) to assess concurrent validity. Finally, multiple-group confirmatory factor analysis with maximum likelihood estimation was used to assess measurement invariance of the quality of life scale. Findings suggest that the WHOQOL-HIV BREF exhibited acceptable psychometric properties. There was evidence for strong internal consistency reliability demonstrated by Cronbach’s α >0.80 and coefficient ω >0.80. The scale’s six domains also exhibited good concurrent validity, with coefficient r = 0.63–0.82. In measurement invariance analysis, configural invariance was found for the scale’s six domains, suggesting measurement noninvariance for factor loadings, item intercepts and factor variances when comparing QOL among participants in the two sites at baseline and follow-up. Our findings suggest that the WHOQOL-HIV BREF has internal consistency reliability and concurrent validity in this study sample. The differences in the levels of observed responses for QOL across intervention and non-intervention groups at baseline and follow-up suggest participants had dissimilar understanding, interpretation, and responses to the scale’s items, which may have resulted from significant measurement, cultural, and developmental differences between study groups. The WHOQOL-HIV BREF exhibited internal consistency reliability, concurrent validity and configural invariance. However, strong invariance was not achieved, making it difficult to compare levels of QOL between groups in this study sample.
title: Die Grenzen des Risiko- und des Projektmanagements
Creators: name: Buchholz, Günter
Publisher: name: Hochschule Hannover
Year: 2013
Subjects: subject: 650 Management

description: Impulsvortrag im Rahmen der Tagung "Zur Kultur im Umgang mit Projektrisiken: Erfahrungen und Methoden".
Operationalizing sustainable development suncor energy inc: a critical case
Creators: name: Fergus, Andrew
Publisher: name: University of Calgary
Year: 2009

description: Bibliography: p. 180-196
description: The concept of Sustainable Development is often understood as a framework within which organizations are able to move forward in a successful and beneficial manner. However, it is also seen as an ambiguous notion with little substance beyond a hopeful dialogue. If we are to base organizational action upon the concepts of Sustainable Development, it is vital that we comprehend the implications of how the concept is understood at a behavioral level. Industry leaders, competitors, shareholders, and stakeholders recognize Suncor Energy Inc as a leading organization within the Oil and Gas energy field. In particular it has a reputation for proactive thinking and action within the areas of environmental and social responsibility. Through attempting to integrate the ideas of Sustainable Development at a foundational level into the strategic plan, the management of Suncor Energy Inc has committed the organization to be a sustainable energy company. To achieve this vision the organization faces the challenge of converting strategic goals into operational behaviors, a process critical for a successful future. This research focuses on understanding the issues found with this conversion process. Through exploring a critical case, this research illuminates the reality of a best-case scenario. The findings thus have implications for both Suncor Energy Inc and more importantly all other organizations attempting to move in a Sustainable Development direction.
Choices for Japanese fiscal policy
Creators: name: Inoue, Kengo
name: Harvey, David
Publisher: name: Columbia University
Year: 2003
Subjects: Economics
Commerce

description: This essay will attempt to make a critical assessment of the debate and to put Japanese fiscal policy into some sort of perspective. In doing so, we look at specific arguments by focusing on the following five headings which are examined in turn. (Note, however that point 5 is such a major issue in itself that it has been discussed in a separate paper written by the author3.) (1) Has the effectiveness of fiscal policy been permanently eroded in recent years compared with earlier periods? (2) Does the neutrality theorem -which states rational people react to government fiscal policy in a way that offsets the policy thrust-apply in Japan? (3) Is the Japanese fiscal position so precarious that priority should be give to reducing the deficit? (4) Can there be any means to improve the way public expenditures are allocated? (5) Does an expansive fiscal policy delay necessary structural adjustments?
Gravitational Recoil From Accretion-Aligned Black-Hole Binaries
Creators: name: Lousto, Carlos O.
name: Zlochower, Yosef
name: Dotti, Massimo
name: Volonteri, Marta
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We explore the newly discovered "hangup-kick" effect, which greatly amplifies the recoil for configuration with partial spin- orbital-angular momentum alignment, by studying a set of 48 new simulations of equal-mass, spinning black-hole binaries. We propose a phenomenological model for the recoil that takes this new effect into account and then use this model, in conjunction with statistical distributions for the spin magnitude and orientations, based on accretion simulations, to find the probabilities for observing recoils of several thousand km/s. In addition, we provide initial parameters, eccentricities, radiated linear and angular momentum, precession rates and remnant mass, spin, and recoils for all 48 configurations. Our results indicate that surveys exploring peculiar (redshifted or blueshifted) differential line-of-sight velocities should observe at least one case above 2000 km/s out of four thousand merged galaxies. The probability that a remnant BH receives a total recoil exceeding the ~2000 km/s escape velocity of large elliptical galaxies is ten times larger. Probabilities of recoils exceeding the escape velocity quickly rise to 5% for galaxies with escape velocities of 1000 km/s and nearly 20% for galaxies with escape velocities of 500 km/s. In addition the direction of these large recoils is strongly peaked toward the angular momentum axis, with very low probabilities of recoils exceeding 350 km/s for angles larger than 45 deg. with respect to the orbital angular momentum axis.
description: 17 pages, 10 tables, 14 figures, revtex 4. Accepted for publication in PRD
How Not to Count the Poor
Creators: name: Reddy, Sanjay G.
name: Pogge, Thomas
Publisher: name: Columbia University
Year: 2009
Subjects: Economics

description: What has been happening to the living standards of poor people in the world lies at the heart of the globalization debate. Indeed, as Amartya Sen has recently argued, the real concern of the so-called "anti-globalization" protestors is surely not globalization per se, for these protests are amongst the most globalized events in the modern world; rather, their concerns seem to stem in large part from the continuing deprivations and rising disparities in levels of living that they see in the current period of globalization (Sen, 2002).
Makrostyles Jaschhof, gen. nov.
Creators: name: Jaschhof, Mathias
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Cecidomyiidae
Makrostyles

description: Genus Makrostyles Jaschhof gen. nov.
Type species, terrifica sp. nov., here designated.
The genus Makrostyles is here established to classify another species from Costa Rica with the Johnsonomyia -like general appearance combined with presence of highly unusual male genitalia.
Diagnosis. Most notably, the gonostylus of Makrostyles is equipped with an excessively large apical tooth, which is strongly bent in the proximal half and slightly angled subapically (↓, Fig. 17A). The teeth of both gonostyli cross each other at exactly the point of the subapical angle. The copulatory organ is peculiar for its elaborate structure, including a convex, subtrapezoid ventral shield and a dorsal pair of finger-like, largely separated, microtrichose processes arising from a common sclerotized base (↓, Fig. 17A). The ejaculatory apodeme is not traceable as a discrete structure, but might be incorporated in the copulatory organ. The massive gonocoxae, which are much broader than long, have greatly developed, protruding medial bridges and unusually small dorsal apodemes (Fig. 17A). Females of Makrostyles are unknown.
Etymology. The generic name is composed of the Greek words makros, for large, and stylos, for style, meaning “with large gonostyli”. Gender of the name is feminine.
description: Published as part of Jaschhof, Mathias, 2016, A review of world Diallactiini (Diptera, Cecidomyiidae, Winnertziinae), with the description of six new genera and seventeen new species, pp. 201-244 in Zootaxa 4127 (2) on page 233, DOI: 10.11646/zootaxa.4127.2.1, http://zenodo.org/record/267022
Curvature Radiation in Rotating Pulsar Magnetosphere
Creators: name: Wang, P. F.
name: Wang, C.
name: Han, J. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the curvature emission properties from relativistic particles streaming along magnetic field lines and co-rotating with pulsar magnetosphere. The co-rotation affects the trajectories of the particles and hence the emission properties, especially the polarization. We consider the modification of the particle velocity and acceleration due to the co-rotation. Curvature radiation from a single particle is calculated using the approximation of a circular path to the particle trajectory. Curvature radiation from particles at a given height actually contains the contributions from particles streaming along all the nearby field lines around the tangential point, forming the emission cone of 1/γ. The polarization patterns from the emission cone are distorted by the additional rotation, more serious for emission from a larger height. Net circular polarization can be generated by the density gradient in the emission cone. For three typical density models in the form of core, cone and patches, we calculate the polarization profiles for emission generated at a given height. We find that the circular polarization could have a single sign or sign reversal, depending on the density gradient along the rotation phase. The polarization profiles of the total curvature radiation from the whole open field line region, calculated by adding the emission from all possible heights, are similar to that from a dominating emission height. The circular polarization of curvature radiation has sign reversals in the patchy emission, while it has a single sign for the core emission, and is negligible for the cone emission.
description: 13pages,20figures
title: Stromortskurve Asynchronmaschine
title: Stromortskurve der Drehstrom-Asynchronmaschine mit kurzgeschlossenem Rotor beim Betrieb am Drehstromnetz mit fester Frequenz und Spannung.
titleType: Subtitle
Creators: name: Fräger, Carsten
Publisher: name: Hochschule Hannover
Year: 2014
Subjects: subject: 600 Technik

description: Im Beitrag wird die Stromortskurve der Drehstromasynchronmaschine dargestellt. Anhand von 3 Beispielmotoren werden konkrete Ortskurven behandelt.
An Overview of Context-Aware Vertical Handover Schemes in Heterogeneous Networks
Creators: name: Alhazmi, Hanan
name: Akkari, Nadine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: As wireless access technologies grow rapidly, the recent studies have focused on granting mobile users the ability of roaming across different wireless networks in a seamless manner thus offering seamless mobility. The different characteristics of each wireless technology with regards to QoS brought many challenges for provisioning the continuous services (audio/video streaming) in a seamless way. In this paper, we intend to review the existing context-aware methods which offered solutions for service continuity. We looked at the types of context information used in each solution. Through this study, it is clear that context awareness plays a significant role in handover process in order to satisfy users demanding seamless services. Therefore, the goal of this paper is to compare the existing methods grouped as general, IMS based, and WLAN/WiMAX solutions in terms of several criteria, such as interworking architecture, service continuity, and QoS provisioning.
description: 12 pages, 9 figures, Journal
Spatial mode storage in a gradient echo memory
Creators: name: Higginbottom, Daniel B.
name: Sparkes, Ben M.
name: Rancic, Milos
name: Pinel, Olivier
name: Hosseini, Mahdi
name: Lam, Ping Koy
name: Buchler, Ben C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Three-level atomic gradient echo memory (lambda-GEM) is a proposed candidate for efficient quantum storage and for linear optical quantum computation with time-bin multiplexing. In this paper we investigate the spatial multimode properties of a lambda-GEM system. Using a high-speed triggered CCD, we demonstrate the storage of complex spatial modes and images. We also present an in-principle demonstration of spatial multiplexing by showing selective recall of spatial elements of a stored spin wave. Using our measurements, we consider the effect of diffusion within the atomic vapour and investigate its role in spatial decoherence. Our measurements allow us to quantify the spatial distortion due to both diffusion and inhomogeneous control field scattering and compare these to theoretical models.
description: 11 pages, 9 figures