TY - BOOK A1 - Guddat, Martin A1 - Wolf, Jürgen T1 - Grundkurs C++ Y1 - 2025 SN - 9783367104529 PB - Rheinwerk Verlag CY - Bonn ER - TY - JOUR A1 - Greitens, Jan T1 - Die europäische Sustainable Finance-Regulierung und der deutsche Mittelstand JF - Zeitschrift für das gesamte Kreditwesen N2 - The European Sustainable Finance regulation is primarily focused on capital markets, requiring companies to disclose extensive data. However, these regulations pose challenges for German SMEs, which rely heavily on bank financing. A survey showed that 60% of SMEs invest in sustainability, but external financing remains limited. The EU's approach may need adjustments, such as creating a voluntary sustainability reporting standard for SMEs and developing a streamlined approach for green loans. KW - Mittelstand KW - Sustainable Finance Y1 - 2024 UR - https://www.wiso-net.de/toc_list/ZFGK/2024/ZFGK__%3A2024%3A15/Heft%2B15%2B%252F%2B2024/ZFGK?max=25&offset=25#ZFGK__ZFGK_20240801_724_01_15 UR - https://www.kreditwesen.de/kreditwesen/themenschwerpunkte/aufsaetze/europaeische-sustainable-finance-regulierung-deuts-id97453.html VL - 2024 IS - 15 SP - 724 EP - 729 ER - TY - JOUR A1 - Greitens, Jan T1 - Disintermediation? Herkunft und Zukunft des bank-basierten Finanzsystems JF - Vierteljahreshefte zur Arbeits- und Wirtschaftsforschung N2 - The question of the optimal design of financial systems, whether more bank-based or more market-based, has a long history. Four phases of the discussion can be distinguished: Before World War I, in the rivalry between Germany and England, the debate begins. Across the spectrum, from the liberal Adolf Weber to the Marxist Rudolf Hilferding and the eclectic Joseph Schumpeter, comparisons were made, and the heterogenous authors arrived at similar assessments. During the Cold War, in contrast to the Soviet-Russian model, Alexander Gerschenkron’s depiction with the advantages of backwardness became influential. After the 1990s and in line with the Varieties of Capitalism approach, the discussion led by Ross Levine resulted in a consensus where different financial systems were embedded in their broader institutional context. The current discussion attempts to prove the superiority of capital markets, pointing to the American system as example. KW - Finanzsysteme KW - Kapitalmarktunion KW - Disintermediation KW - Schumpeter KW - Bankfinanzierung Y1 - 2024 U6 - https://doi.org/10.3790/vaw.2024.1447203 VL - 1 IS - 2 SP - 185 EP - 204 ER - TY - CHAP A1 - Ettl, Kerstin A1 - Roßdeutscher, Axel ED - Bergk, Annett T1 - Unterstützung wirksamer Führung durch personaldiagnostisch gestütztes (Business-)Coaching T2 - Zukunftsführung N2 - Zusammenfassung Im vorliegenden Beitrag geht es um die Frage, wie personaldiagnostisch gestütztes (Business-)Coaching zur Entwicklung von Führungskompetenzen und Unterstützung wirksamer Führung eingesetzt werden kann. Nach einer kurzen Einführung in aktuelle Herausforderungen und zukünftige Anforderungen an wirksame Führung werden zunächst Grundlagen der Potenzialentwicklung von Führungskräften durch Coaching diskutiert. Neben der Definition und Abgrenzung von Coaching werden hierzu Coachinganlässe und daraus resultierende Anforderungen an die Coaches betrachtet, Wirkmechanismen im Coaching aufgezeigt und grundlegende Einsatzfelder und -möglichkeiten personaldiagnostischer Instrumente im Coaching erläutert. Als Anwendungsbeispiel aus der Praxis wird anschließend der RAUEN Analyzer® als personaldiagnostisches Instrument im Führungskräftecoaching vorgestellt. Neben der wissenschaftlichen Fundierung des Instruments werden exemplarische Ansatzpunkte, die das Instrument zur Unterstützung wirksamer Führung liefert, an zwei Fallbeispielen dargestellt und diskutiert und so Möglichkeiten, aber auch Grenzen eines personaldiagnostisch gestützten Coachings im Führungskontext aufgezeigt. Y1 - 2024 U6 - https://doi.org/10.1007/978-3-662-69276-9_18 SP - 233 EP - 257 PB - Springer Gabler CY - Berlin, Heidelberg ER - TY - CHAP A1 - Griessbach, Lela A1 - Ettl, Kerstin T1 - The Effects of Formal and Informal Institutions on Women’s Entrepreneurship in Georgia T2 - Minds, Brains, and Doxa for Inclusive Entrepreneurship N2 - The aim of this chapter is to address the impact of formal and informal institutions on women’s entrepreneurship and to extend our understanding of issues influencing women-owned businesses and women’s entrepreneurship in the context of a transition economy, such as Georgia. Our work specifically addresses formal institutions, such as governmental initiatives, financial institutions, and business-relevant education. It also addresses informal institutions, such as women’s role in society, the use of informal networks of connections and acquaintances, and gift-giving practices. Drawing on results from an online focus group discussion with women entrepreneurs in Georgia, we provide initial insights into the critical constraints and supporting factors that local women entrepreneurs experience. Based on the interrelation of institutions and women’s entrepreneurship, we conclude that changes in formal institutions do not lead directly to changing informal institutions. Due to the lack of trust in formal institutions, women entrepreneurs are more likely to look for business development solutions outside the official frames, including illegal or unethical means of survival. Nevertheless, increased opportunities – induced by specific entrepreneurship policies and programs – encourage women to enter entrepreneurship. In addition to this, entrepreneurship enables women in Georgia to overcome gender discrimination issues, which is more prevalent in employment relationships in the local labor market than in entrepreneurial activities. Y1 - 2024 SN - 978-3-031-50163-0 U6 - https://doi.org/10.1007/978-3-031-50164-7_3 SP - 33 EP - 57 PB - Springer CY - Cham ER - TY - CHAP A1 - Simon, Jelena A1 - Ettl, Kerstin ED - Ben-Hafaïedh, Cyrine ED - Cooney, Thomas T1 - MARGE (Germany) T2 - Cases on STEM Entrepreneurship N2 - Abstract This case describes the difficulties of business succession from a successor’s perspective. The case is based on a real metalworking family business in an old industrial region in Germany. The key issues are challenges that, Michelle and Adrian, two second-generation successors within one company, face in teambuilding and finding their own place within the corporation and their team. The case is divided into two parts: Part 1 is a newspaper article about the succession process that points out stereotypes and writing styles in reporting on entrepreneurship/succession in the media. Part 2 is the succession story written from Michelle’s perspective and highlights challenges that female successors face in traditional male-dominated areas, for instance, when it comes to questions of balancing work and family needs. The case addresses issues relating to entrepreneurship and business succession classes, with sociological and psychological overtones. KW - Business succession KW - Succession teams KW - Female entrepreneurship KW - Male-dominated industries KW - Founder Y1 - 2024 UR - https://www.elgaronline.com/edcollchap/book/9781802206289/book-part-9781802206289-15.xml U6 - https://doi.org/10.4337/9781802206289.00015 SP - 120 EP - 130 PB - Edward Elgar CY - Cheltenham ER - TY - CHAP A1 - Köhler, Theresa A1 - Ettl, Kerstin T1 - The Integration of Refugees in Small and Medium-Sized Enterprises (SMEs): Case Studies from Practice T2 - Refuge N2 - Abstract With the increasing number of refugees seeking protection and a new home in Germany, our society faces the task of optimally integrating those refugees. This includes integration into the labor market. This chapter deals with the integration of refugees into small and medium-sized enterprises (SMEs). We explore why SMEs choose to integrate refugees into their business, what opportunities they see in it, what challenges integration brings, and what management considers as success factors of a successful integration. The results show that a successful integration is based on a combination of the individual commitment of the refugees, the acceptance and support of the management and workforce in the company as well as clear, reliable institutional framework conditions. Y1 - 2024 U6 - https://doi.org/10.1007/978-3-658-42341-4_8 SP - 141 EP - 156 PB - Springer CY - Wiesbaden ER - TY - CHAP A1 - Kruse, Christian A1 - Pietschmann, Urs A1 - Becks, Daniela A1 - Wesseling, Jonas A1 - Widera, Agnes ED - Semar, Wolfgang T1 - Digitales Nachhaltigkeitsreporting - Herausforderungen und Konsequenzen für kleine und mittlere Unternehmen T2 - Nachhaltige Information – Information für Nachhaltigkeit N2 - Dem Thema Nachhaltigkeit kommt zunehmend eine größere Bedeutung zu. Dies liegt nicht zuletzt daran, dass die Pflicht, einen Nachhaltigkeitsbericht zu erstellen, mit dem Jahr 2024 auch auf viele kleine und mittlere Unternehmen ausgeweitet wird. Bislang trifft dies überwiegend auf große Unternehmen zu, welche in der Regel strukturell und hinsichtlich Software sehr gut für die Bewältigung dieser Aufgabe aufgestellt sind. Anders verhält es sich jedoch bei KMU, denn in diesen fehlen meist personelle und finanzielle Ressourcen sowie geeignete softwaretechnische Unterstützungswerkzeuge. In diesem Beitrag werden die Ergebnisse einer Studie der Westfälischen Hochschule vorgestellt, die sich auf das Nachhaltigkeitsreporting von KMU fokussiert. Darüber hinaus werden Herausforderungen aus Informationssicht erläutert und mögliche Unterstützungsbedarfe für KMU diskutiert. Ein Überblick über zukünftige Ansatzpunkte und eine abschließende Diskussion runden den Artikel ab. KW - Nachhaltigkeitsreporting KW - KMU KW - Digitalisierung Y1 - 2023 U6 - https://doi.org/10.5281/zenodo.10009338 SP - 338 EP - 351 PB - Zenodo ER - TY - JOUR A1 - Sejdija, Feriz T1 - BFH 12.04.2023 - I R 44/22 (I R 49/19, I R 17/16): Nichtberücksichtigung „finaler“ ausländischer Betriebsstättenverluste auch bei qualifizierter Rückfallklausel JF - DStRK Y1 - 2023 VL - 2023 IS - 14/2023 SP - 183 EP - 183 ER - TY - JOUR A1 - Ettl, Kerstin T1 - Wirtschaftsnobelpreis 2023: Frau(en) im Fokus JF - Zeitschrift für das gesamte Kreditwesen N2 - Würdigung der Wirtschaftsnobelpreisprägerin Claudia Goldin Y1 - 2023 UR - https://www.wiso-net.de/document/ZFGK__1be89c743765079d94bf9e8bff64e1de05118a52 VL - 76 IS - 21 SP - 1089 ER - TY - JOUR A1 - Nacke, Phillipp A1 - Otterpohl, Florian A1 - Thorwart, Michael A1 - Nalbach, Peter T1 - Dephasing and pseudocoherent quantum dynamics in super-Ohmic environments JF - Physical Review A N2 - Dephasing in quantum systems is typically the result of their interaction with environmental degrees of freedom. We investigate within a spin-boson model the influence of a super-Ohmic environment on the dynamics of a quantum two-state system. A super-Ohmic environment thereby models typical bulk phonons which are a common disturbance for solid state quantum systems as, for example, nitrogen-vacancy centers. By applying the numerically exact quasiadiabatic path-integral approach we show that for strong system-bath coupling, pseudocoherent dynamics emerges, i.e., oscillatory dynamics at short times due to slaving of the quantum system to the bath dynamics. We extend the phase diagram known for sub-Ohmic and Ohmic environments into the super-Ohmic regime and observe a pronounced nonmonotonous behavior. Super-Ohmic purely dephasing fluctuations strongly suppress the amplitude of coherent dynamics at very short times with no subsequent further decay at later times. Nevertheless, they render the dynamics overdamped. The corresponding phase separation line shows also a nonmonotonous behavior, very similar to the pseudocoherent dynamics. Y1 - 2023 U6 - https://doi.org/https://doi.org/10.1103/PhysRevA.107.062218 VL - 2023 IS - 107 SP - Article Number: 062218 ER - TY - JOUR A1 - Gurski, Gregor A1 - Kirchberg, Henning A1 - Nalbach, Peter A1 - Thorwart, Michael T1 - Hydration shell effects in ac-driven single-molecule junctions JF - Physical Review B N2 - We propose a quantum-mechanical model to calculate the current through a single molecular junction immersed in a solvent and surrounded by a thin shell of bound water under an applied ac voltage. The solvent plus hydration shell are captured by a dielectric continuum model for which the resulting spectral density is determined. Here the dielectric properties, e.g., the Debye relaxation time and the dielectric constant, of the bulk solvent and the hydration shell as well as the shell thickness directly enter. We determine the charge current through the molecular junction under an ac voltage in the sequential tunneling regime where we solve a quantum master equation by a real-time diagrammatic technique. Interestingly, the Fourier components of the charge current show an exponential-like decline when the hydration shell thickness increases. Finally, we apply our findings to binary solvent mixtures with varying volume fractions and find that the current is highly sensitive to both the hydration shell thickness as well as the volume fraction of the solvent mixture, giving rise to possible applications as shell and concentration sensors on the molecular scale. Y1 - 2023 U6 - https://doi.org/https://doi.org/10.1103/PhysRevB.107.165413 VL - 2023 IS - 107 SP - Article Number: 165413 ER - TY - BOOK A1 - Wolf, Jürgen A1 - Guddat, Martin T1 - Grundkurs C++ N2 - Das gesamte Grundwissen zu C++ im praktischen Taschenbuchformat – zum Lernen und Nachschlagen. Vom ersten einfachen Programm bis zu komplexen Anwendungen. Übungen am Ende jedes Kapitels helfen Ihnen bei der Lernkontrolle. Sämtliche Grundlagen (Klassen, Vererbung, Polymorphie, Templates usw.) werden kurz und übersichtlich dargestellt. Diese dritte Auflage berücksichtigt aktuelle Standars bis C++20. KW - C++ KW - Programmiersprache Y1 - 2022 SN - 978-3-8362-7636-8 PB - Rheinwerk Verlag CY - Bonn ET - 4 ER - TY - JOUR A1 - Nalbach, Peter T1 - Single-molecule junctions sensitive to binary solvent mixtures JF - Physical Review B N2 - We propose a quantum-mechanical model to calculate the nonlinear differential conductance of a single molecular junction immersed in a solvent, either in pure form or as a binary mixture with varying volume fraction. The solvent mixture is captured by a dielectric continuum model for which the resulting spectral density is determined within the Gladstone-Dale approach. The conductance of the molecular junction is calculated by a real-time diagrammatic technique. We find a strong variation of the conductance maximum for varying volume fraction of the solvent mixture. Importantly, the calculated molecular nonlinear conductance shows a very good agreement with experimentally measured data for common molecular junctions in various polar solvent mixtures. Y1 - 2022 U6 - https://doi.org/https://doi.org/10.1103/PhysRevB.106.075413 VL - 2022 IS - 106 SP - Article Number: 075413 ER - TY - JOUR A1 - Nalbach, Peter T1 - Crossing time in the dissipative Landau-Zener quantum dynamics JF - The European Physical Journal B N2 - We study the dynamics of a quantum two-state system driven through an avoided crossing under the influence of a super-Ohmic environment. We determine the Landau–Zener probability employing the numerical exact quasi-adiabatic path integral and a Markovian weak coupling approach. Increasing the driving time in the numerical protocol, we find converged results which shows that super-Ohmic environments only influence the Landau Zener probability within a finite crossing time window. This crossing time is qualitatively determined by the environmental cut-off energy. At weak coupling, we show that the Markovian weak coupling approach provides an accurate description. Since pure dephasing of a super-Ohmic bath is non-Markovian, this highlights that pure dephasing hardly influences the Landau–Zener probability. The finite crossing time window, thus, results from the suppression of relaxation once the energy splitting exceeds the environmental cut-off energy. Y1 - 2022 U6 - https://doi.org/https://doi.org/10.1140/epjb/s10051-022-00306-z VL - 2022 IS - 41 SP - Article number: 41 ER - TY - JOUR A1 - Otterpohl, Florian A1 - Nalbach, Peter A1 - Thorwart, Michael T1 - Hidden Phase of the Spin-Boson Model JF - Physical Review Letters N2 - A quantum two-level system immersed in a sub-Ohmic bath experiences enhanced low-frequency quantum statistical fluctuations which render the nonequilibrium quantum dynamics highly non-Markovian. Upon using the numerically exact time-evolving matrix product operator approach, we investigate the phase diagram of the polarization dynamics. In addition to the known phases of damped coherent oscillatory dynamics and overdamped decay, we identify a new third region in the phase diagram for strong coupling showing an aperiodic behavior. We determine the corresponding phase boundaries. The dynamics of the quantum two-state system herein is not coherent by itself but slaved to the oscillatory bath dynamics. Y1 - 2022 U6 - https://doi.org/https://doi.org/10.1103/PhysRevLett.129.120406 VL - 2022 IS - 129 SP - Article Number: 120406 ER - TY - JOUR A1 - Ettl, Kerstin A1 - Brink, Siegrun A1 - Tegtmeier, Silke T1 - Concepts and facets of entrepreneurial diversity: moving the discussion forward JF - International Journal of Entrepreneurial Venturing N2 - This introduction to a special issue about concepts and facets of entrepreneurial diversity serves as a starting point for further discussion and research in this field. For this purpose, we provide information about the roots of the study of diversity and current trends in entrepreneurship research and present a frame for (researching) entrepreneurial diversity. Additionally, we briefly summarize the three papers selected for inclusion in this special issue. Together, they offer insights into the intersections of different diversity dimensions, personality as a deep dimension of team composition, and a general critical reflection on the conceptualization of entrepreneurial diversity. Taken together, the papers in this special issue present new findings and contribute to further advancing the long overdue research on and discussion about diversity in the field of entrepreneurship. KW - entrepreneurship KW - diversity KW - entrepreneurial diversity KW - intersectionality Y1 - 2021 SN - 1742-5360 VL - 13 IS - 3 SP - 217 EP - 230 ER - TY - CHAP A1 - Schnittker, Julia A1 - Ettl, Kerstin ED - Laveren, Eddy ED - Ben-Hafaïedh, Cyrine ED - Kurczewska, Agnieszka ED - Jiang, Yi Dragon T1 - Career paths of female entrepreneurs in STEM - challenges and opportunities T2 - Contextual heterogeneity in entrepreneurship research. Frontiers in European entrepreneurship research Y1 - 2021 SN - 978-1-80220-019-5 SP - 135 EP - 154 PB - Edward Elgar Publishing CY - Cheltenham ER - TY - RPRT A1 - Welter, Friederike A1 - Ettl, Kerstin A1 - Schnittker, Julia T1 - Ergebnisüberblick zum Forschungsprojekt: "MINTdabei" – Stärkung der Selbst- und Fremdwahrnehmung von Young Women MINT Professionals N2 - Ein Forschungsprojekt der Universität Siegen in Zusammenarbeit mit dem Institut für Mittelstandsforschung Bonn. Das Vorhaben "MINTdabei" — Stärkung der Selbst- und Fremdwahrnehmung von Young Women MINT Professionals (YWMP) beim Berufseinstieg und -aufstieg in berufliche Selbstständigkeit und Mittelstand" wurde mit Mitteln des Bundesministeriums für Bildung und Forschung (BMBF) unter dem Förderkennzeichen 01FP1620 gefördert. Wir untersuchten Berufseinstieg und -aufstieg von YWMP in der beruflichen Selbstständigkeit und als Angestellte in mittelständischen Unternehmen, um durch die Identifikation spezifischer Probleme und Herausforderungen, insb. bei der Selbst- und Fremdwahrnehmung, Lösungsansätze für die Zukunft zu entwickeln. Ziel des Projektes ist es, damit einen kurz-, mittel- und langfristigen Beitrag zur Stärkung der Selbst- und Fremdwahrnehmung von Young Women MINT Professionals zu leisten. Y1 - 2021 UR - https://www.wiwi.uni-siegen.de/welter/mintdabei/aktuelles/ergebnisueberblick_mintdabei_final_02_2021.pdf PB - Universität Siegen CY - Siegen ER - TY - JOUR A1 - Sotto, Françoso Dal Piccol A1 - Kaufmann, Paul A1 - Atkinson, Timothy A1 - Kalkreuth, Roman A1 - Basgalupp, Márcio Porto T1 - Graph representations in genetic programming JF - Genetic Programming and Evolvable Machines Y1 - 2021 U6 - https://doi.org/10.1007/s10710-021-09413-9 SN - 1389-2576 VL - 22 IS - 4 SP - 607 EP - 636 ER -