1,053 research outputs found
Paradoxes and management approaches of competing for work in creative professional service firms
No full textDespite their business relevance, creative professional service firms are under-researched, in particular with regard to how they compete for work. Competing for work is key to survival, but also extremely challenging due to the complexity of the services offered. In this paper we use a paradox framework to investigate the opposing demands that creative professional service firms experience when competing for work. Based on a set of semi-structured interviews in the context of architectural competitions, we show that creative professional service firms face two interwoven paradoxes which relate to the strategic intent (why to compete) and the design intent (what to propose) of client propositions. We describe these paradoxes and explain how organizations manage and cope with them through both synthesis and separation management approaches. Contributions of this study can be found in theorizing paradoxes of competing for work from the professional service provider's perspective, and in fostering the firms’ paradoxical mind-set, which facilitates the acceptance and resolution of complexity and different competing demands.Accepted Author ManuscriptPublic Commissionin
Neolindus brachati Volker, 2012, sp. n.
No full text<i>Neolindus brachati</i> sp. n., <i>Neolindus luciamans</i> sp. n. <p> <b>Zusammenfassung</b></p> <p> Zwei Arten der Gattung <i>Neolindus</i> Scheerpeltz, 1933 werden beschrieben, abgebildet und von ähnlichen bzw. geographisch nahen Arten unterschieden: <i>N. luciamans</i> sp. n. (Peru: Provinz Huanuco) und <i>N. brachati</i> sp. n. (Venezuela: Provinz Carabobo). <i>Neolindus rudiculus</i> Herman, 1991 wird erstmals seit der Originalbeschreibung nachgewiesen.</p> <p>Introduction</p> <p> The subtribe Cylindroxystina is one of the few Neotropical paederine taxa that have been subject to modern revisions. According to Herman (1991), it comprises two genera and 47 species, <i>Cylindroxystus</i> Bierig, 1943 (14 species) and <i>Neolindus</i> Scheerpeltz, 1933 (33 species). Four additional species of <i>Neolindus</i> were described recently by Asenjo (2011) and Irmler (2011).</p> <p> Both <i>Cylindroxystus</i> and <i>Neolindus</i> have been collected remarkably rarely and in small numbers; numerous species are represented only by single specimens. The revision by Herman (1991) is based on a total of merely 37 (<i>Cylindroxystus</i>) and 79 specimens (<i>Neolindus</i>), respectively. Most of them were found in leaf litter and at lower elevations, but the reproduction habitat is essentially unknown.</p> <p> In material of Staphylinidae collected by Volker Brachat (Geretsried) in Venezuela in 2005 and 2007 and by Günter Riedel (München) in Peru in October 2010, five specimens of <i>Neolindus</i> were discovered, a female of unknown identity (probably undescribed), a female of <i>N. rudiculus</i> Herman, 1991, and three specimens (two males and one female) belonging to two undescribed species from Peru and Venezuela.</p> <p>Material and methods</p> <p>The material treated in this study is deposited in the author´s collection.</p> <p>The morphological studies were conducted using a Stemi SV 11 microscope (Zeiss Germany) and a Jenalab compound microscope (Carl Zeiss Jena). A digital camera (Nikon Coolpix 995) was used for the photographs.</p> <p>Head length was measured from the anterior margin of the frons to the posterior margin of the head, elytral length at the suture from the apex of the scutellum to the posterior margin of the elytra, total length from the anterior margin of the mandibles to the apex of the abdomen, the length of the forebody from the anterior margin of the mandibles to the posterior margin of the elytra, aedeagal length from the apex of the internal structures or from the apex of the dorsal plate (whichever is the longest) to the base of the capsule. The parameral side of the aedeagus (i.e., the side where the sperm duct enters) is referred to as the ventral, the opposite side as the dorsal aspect.</p>Published as part of <i>Volker, A., 2012, Two new species of Neolindus from Peru and Venezuela (Coleoptera: Staphylinidae: Paederinae: Cylindroxystina), pp. 291-297 in Beiträge Zur Entomologie = Contributions to Entomology 62 (6)</i> on pages 291-292, DOI: 10.21248/contrib.entomol.62.2.291-297, <a href="http://zenodo.org/record/4812846">http://zenodo.org/record/4812846</a>
COVID-19 and the Internet: Lessons Learned
Full text linkThe COVID-19 pandemic has disrupted the ‘real’ world and substantially impacted the virtual world and thus the Internet ecosystem. It has caused a significant exogenous shock that offers a wealth of natural experiments and produced new data about broadband, clouds, and the Internet in times of crisis. In this chapter, we characterise and evaluate the evolving impact of the global COVID-19 crisis on traffic patterns and loads and the impact of those on Internet performance from multiple perspectives. While we place a particular focus on deriving insights into how we can better respond to crises and better plan for the post-COVID-19 ‘new normal’, we analyse the impact on and the responses by different actors of the Internet ecosystem across different jurisdictions. With a focus on the USA and Europe, we examine the responses of both public and private actors, with the latter including content and cloud providers, content delivery networks, and Internet service providers (ISPs). This chapter makes two contributions: first, we derive lessons learned for a future post-COVID-19 world to inform non-networking spheres and policy-making; second, the insights gained assist the networking community in better planning for the future.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Cyber Securit
Raw data and scripts for "The Period-Modulated Harmonic Locked Loop (PM-HLL): A low-effort algorithm for rapid time-domain multi-periodicity estimation"
No full textThis package contains all required scripts to generate the simulations and figures from the study "The Period-Modulated Harmonic Locked Loop (PM-HLL): A low-effort algorithm for rapid time-domain multi-periodicity estimation" by Volker Hohmann, published in Acta Acustica:
The Period-Modulated Harmonic Locked Loop (PM-HLL): A low-effort algorithm for rapid time-domain multi-periodicity estimation
Volker Hohmann
Acta Acust. 5 56 (2021)
DOI: 10.1051/aacus/2021050
When referring to this work, please cite the journal paper.
Note that additive noise is generated at random, i.e., small differences in the estimation accuracy occur when repeating a simulation. For further details see the journal paper.
Thank you for downloading the package. Your comments are very welcome!
Method patented: DE Patent DE102021207339B3
Author: Volker Hohmann, Carl von Ossietzky University of Oldenburg, GermanyFunded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID 352015383 – SFB 1330 – project B2
Epidemiology, clinical characteristics, and associated injury risk factors among trail running race entrants in the 2021 Mac Mac Ultra
Full text linkDissertation (Msc (Physiotherapy))--University of Pretoria , 2023.Epidemiology, clinical characteristics, and associated injury risk factors among trail running race entrants in the 2021 Mac Mac Ultra
Candidate: Mignette Jooste
Supervisor: Dr CT Viljoen
Co-supervisors: Prof. Christa Janse van Rensburg and Prof. Volker Scheer
Degree: M Physiotherapy
Background: There is limited research available on the epidemiology, clinical characteristics and associated injury risk factors in trail running. This gap in research may put trail runners at risk when competing in challenging trail running races.
Aim of the study: To determine the epidemiology, clinical characteristics and associated injury risk factors among trail runners entered in the 2021 Mac Mac Ultra Race.
Design: Retrospective cross sectional study
Setting: 2021 Mac Mac Ultra race, Sabie, Mpumalanga, South Africa
Participants: 251 consenting trail runners
Methods: Data gathered during the pre-event medical screening process include trail runners’ demographics (BMI, height, age, running experience, weight), training variables in respect of running (weekly frequency, weekly distance, surface, average pace, shoes, vertical gain, cross-training,), injury history (clinical characteristics of injury, running-related injury (RRI) in the past 12 months, current RRI, severity of injury), history of disease (chronic disease, current illness) and usage of medication (current, chronic medication). Only the injury-related data were analysed in this study. The questionnaire is used in pre-race medical screening at various trail running events across South Africa. Race entrants self-report their injuries sustained in the past 12 months by responding “yes” to the question: “Did you sustain any running-related injuries in the past 12 months?”. Runners currently injured had selected “injury” in response to the question: Do you have a current injury or illness? If “injury” was selected, then additional questions were posed in relation to the four main considerations of the Oslo Sports Trauma Research Center Questionnaire on Health Problems (OSTRC-H) (Clarsen et al., 2013). To be recorded as a current injury, the race entrant had to indicate that training modification was needed during the two weeks before the race.
Furthermore, like the study on the 2019 Sky Run Race, questions that fixated on the clinical aspects of injuries were asked. We used the Pearson Chi square test to compare categorical variables of all athletes in the event versus consenting athletes in the event to establish if our sample was demonstrative of the population (all 2021 Mac Mac Ultra race entrants). Frequencies (n, %) of injury for pathology type, tissue type, body area and anatomical region utilised descriptive statistics. Inferential statistics (Independent t-test and Mann Whitney U test, and Chi Squared tests) were applied to contrast the training and demographic data of entrants between injured and non-injured entrants to examine and find connected injury risk factors. Odds Ratios were calculated using Binary logistic regression to investigate further the association between exposure and outcome (sustaining RRIs). Entrants were categorised into those who experienced a RRI during the previous 12 months vs. non-injured participants. Due to zero of the univariate examinations yielding statistically significant results (p<0.05), a multivariate evaluation was omitted.
Results: A total of 330 trail runners entered the race, although the questionnaire used at pre-race medical screening was compulsory, participation in the study was not, 251 out of the 330 race entrants gave consent to use their data. Twenty percent of trail runners stated one RRI or more. The retrospective annual incidence was 19.92/100 athlete-years. The point prevalence was 4.4%. Injuries mostly appeared in the lower limb (95%), including the lower leg (26%), thigh (22%), ankle and foot (13%) described as the highest injured body areas. Of tissue type injuries, muscle/tendon comprised 60%. Muscle injury (36%), tendinopathy (24%) and joint sprains (9%) were the most reported pathology types. No related injury risk factors were discovered in this study.
Conclusion: One in five trail runners reported one or more RRI during the 12 months before a competitive event. Running-related injuries commonly involved the lower limb, especially the lower leg, thigh, foot, and ankle. In this study no risk factors associated with sustaining a RRI was identified, this can be due to the complex nature of injuries.NonePhysiotherapyMSc (Physiotherapy)UnrestrictedFaculty of Health SciencesSDG-03:Good heatlh and well-bein
Monetary theory and monetary policy : reflections on the development over the last 150 years : [Version 8 Dezember 2012]
No full textIn this paper, we provide some reflections on the development of monetary theory and monetary policy over the last 150 years. Rather than presenting an encompassing overview, which would be overambitious, we simply concentrate on a few selected aspects that we view as milestones in the development of this subject. We also try to illustrate some of the interactions with the political and financial system, academic discussion and the views and actions of central banks
Private International Law – Incapacity and contracts – the European dimension
No full textThe author considers the international and European dimensions of law to protect incapable adults in respect of their person and their property. Article by Dr Volker Lipp (University of Mannheim, former Visiting fellow of the IALS) published in Amicus Curiae - Journal of the Institute of Advanced Legal Studies and its Society for Advanced Legal Studies. The Journal is produced by the Society for Advanced Legal Studies at the Institute of Advanced Legal Studies, University of London
Monetary theory and monetary policy : reflections on the development over the last 150 years
Full text linkIn this paper, we provide some reflections on the development of monetary theory and monetary policy over the last 150 years. Rather than presenting an encompassing overview, which would be overambitious, we simply concentrate on a few selected aspects that we view as milestones in the development of this subject. We also try to illustrate some of the interactions with the political and financial system, academic discussion and the views and actions of central banks
Private International Law – Incapacity and contracts – the European dimension
No full textThe author considers the international and European dimensions of law to protect incapable adults in respect of their person and their property. Article by Dr Volker Lipp (University of Mannheim, former Visiting fellow of the IALS) published in Amicus Curiae - Journal of the Institute of Advanced Legal Studies and its Society for Advanced Legal Studies. The Journal is produced by the Society for Advanced Legal Studies at the Institute of Advanced Legal Studies, University of London
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