1,476 research outputs found
Labor, Risk and Uncertainty in Global Supply Networks – Exploratory Insights
Arising from widespread outsourcing and, in particular, offshoring, goods and
services are increasingly provided by supply networks that rely on global
logistic systems. While the risks and uncertainties involved in this strategy
have been widely acknowledged in the literature on interorganizational
networks and supply chain management, labor conditions and labor relations –
and related human resource management issues – have thus far been neglected.
Starting from a perspective that takes into consideration that global supply
networks are not only confronted with calculable risks but also genuine
uncertainties, we explore the conditions under which labor may constitute a
source as well as a means for dealing with risk and uncertainty. The study is
based on a review of the relevant inter-organizational network and supply
chain management literature and is informed by an investigation of
International Framework Agreements (IFAs) in ten European corporations and
their supply networks. IFAs – in addition to unilateral codes of conduct –
could be used to detect and cope with labor-related risk and uncertainties.
However, our findings reveal that this is not the case. This leads to some
tentative theoretical conclusions and implications for dealing with risk and
uncertainty in global supply networks
Experimental behavior of graphite-epoxy Y-stiffened specimens loaded in compression
An experimental investigation of the behavior of graphite-epoxy Y-stiffened specimens loaded in compression is presented. Experimental results are presented for element specimens with a single stiffener and for panel specimens with three stiffeners. Response and failure characteristics of the specimens are described. Effects of impact damage on structural response for both specimen configurations are also presented. Experimental results indicate that impact location may significantly affect the residual strength of the Y-stiffened specimens. The failure results indicate that the critical failure mode is buckling of the stiffener webs for Y-stiffened element specimens and buckling of the stiffener webs and other stiffener blades for the Y-stiffened panel specimens
Organizing R&D Consortia for Path Creation and Extension: The Case of Semiconductor Manufacturing Technologies
Taking issue with the classical theory of path dependence, we capture the active agency involved in collective efforts aimed at extending a current technological path and, in parallel, at creating a new path in the field of leading-edge international semiconductor manufacturing. We apply structuration theory in order to analyse the practices of path constitution that traditional evolutionary views of lock-in and irreversibility in path processes have neglected. Drawing on 96 interviews since 2003 and extensive secondary sources in the field of semiconductor manufacturing in Europe, Japan and the United States, we perform a qualitative, longitudinal and multi-level case analysis; in this analysis we trace, in particular, the strategic development of a path-extending technological option besides a potentially path-breaking new generation of lithography for chip manufacturing systems. Our results provide deep insights into the collective and collaborative dimension of organizing R&D in processes of technology development. Thereby, we contribute to a theory of technological paths that considers collective embedded agency and takes into account interorganizational forms for an understanding of the innovation dynamics in science-based industries such as semiconductor manufacturing
Improving primary healthcare access for asylum seekers and refugees: a qualitative study from a swiss family physician perspective
Since 2015 the need for evidence-based guidance in primary health care management of refugees, asylum seekers, and immigrants has dramatically increased. The aims of this study were to identify the challenges met by primary care physicians in Switzerland, by performing semi-structured interviews and to identify possible approaches and interventions. Between January 2019 and January 2020, 20 GPs in 3 Swiss cantons were interviewed. The interviews were transcribed, coded with MAXQDA 18, and analyzed using the framework methodology. Following relevant findings were highlighted; (i) problems relating to health insurance companies among (health-insured) asylum seekers and refugees were negligible; (ii) there is a high acceptance for vaccination by refugees, asylum seekers, and immigrants; (iii) limitations in time for consultations and adequate reimbursement for practitioners pose a serious challenge; (iv) the majority of consultations are complaint-oriented, preventive consultations are rare; and (v) the language barrier is a major challenge for psychosocial consultations, whereas this appears less relevant for somatic complaints. The following issues were identified as high priority needs by the study participants; (i) increased networking between GPs, that is, establishing bridging services with asylum centers, (ii) improved training opportunities for GPs in Migration Medicine with regular updates of current guidelines, and (iii) a standardisation of health documentation facilitating exchange of medical data, that is, digital/paper-based "health booklet" or "health pass.
Comment on `conservative discretizations of the Kepler motion'
We show that the exact integrator for the classical Kepler motion, recently
found by Kozlov ({\it J. Phys. A: Math. Theor.\} {\bf 40} (2007) 4529-4539),
can be derived in a simple natural way (using well known exact discretization
of the harmonic oscillator). We also turn attention on important earlier
references, where the exact discretization of the 4-dimensional isotropic
harmonic oscillator has been applied to the perturbed Kepler problem.Comment: 6 page
Networking to death: On the dark side of start-ups’ external networking
Purpose – Many start-ups do not survive the first few years of business. Previous studies suggest that
networks play a role in start-ups’ success, but this positive effect has limits. The purpose of this paper is to
answer the call for a better understanding of the dark side of networks and the variables that condition
variables’ effect on the likelihood of start-ups’ survival.
Design/methodology/approach –Alongitudinal research design includes 139 start-ups (102 from Germany
and 37 from Portugal) and a total of 252 participants. A generalized linear mixed model (GLMM)was applied to
estimate all the coefficients, to test the mediation (H1), the moderation (H2) and the moderated mediation (H3)
while considering the economic situation of the start-up (sales growth), start-ups’ networking behavior,
creativity orientation and ultimately the likelihood of survival.
Findings – Based on an empirical study from two different countries, the results show that effective
networking is contingent on the start-up’s economic situation and creative potential. Specifically, the results
point to situations in which early sales growth may lead to external networking, which, in contexts of low
creativity-oriented start-ups, can compromise the start-ups’ success.
Originality/value – Based on the findings, the authors compare scenarios in which networking increases the
chances for start-up survival with situations where networking can have adverse effects. This study highlights
the importance of considering specific start-up parameters, such as start-ups’ economic situation and level of
creativity orientation, in the business venturing literature.info:eu-repo/semantics/publishedVersio
Hormonal modifications in patients admitted to an internal intensive care unit for acute hypoxaemic respiratory failure
AbstractTo clarify which endocrine modifications can be observed in acute hypoxaemic respiratory failure, 15 severely ill male patients [PAT; median age: 61 (range: 48 years); median height: 173 (range: 12) cm; median mass: 73 (range 31) kg] were investigated immediately upon admission to an intensive care unit (ICU) for this clinical disorder. Before starting treatment, the blood gases were measured and a number of selected hormones with special relevance for an ICU setting were determined. These are known to be modified by acute hypoxaemia in healthy subjects and to possess glucoregulatory properties, or an influence upon cardiocirculation or the vascular volume regulation: insulin, cortisol, adrenaline, noradrenaline, atrial natriuretic peptide, renin, aldosterone, angiotensin converting enzyme, and endothelin-I (ET). To elucidate whether potential endocrine changes resulted from acute hypoxaemia alone, the underlying disease, or unspecific influences connected with the ICU setting, all measurements were compared to those of a completely healthy reference group (REF) with comparable acute experimental hypoxaemia. The latter state was achieved by having the REF breathe a gas mixture with the oxygen content reduced to 14% (H).In the REF, neither the medians nor the distribution of endocrinologic measurements were modified significantly by acute hypoxaemia. In the PAT, the medians were increased considerably, yet with a slight diminution of ET. The distribution of individual values was considerably broader than in the REF with H.In conclusion, considerable increases in the means of the above hormones, with the exception of ET, can be registered in severely ill patients admitted to ICUs with acute hypoxaemic failure. However, such modifications cannot be considered attributable exclusively to acute arterial hypoxaemia. The underlying clinical disorders, such as septicaemia or an unspecific endocrine epiphenomenon, including severe and not only hypoxaemic stress, seem to be predominant
Stochastic analysis of surface roughness
For the characterization of surface height profiles we present a new
stochastic approach which is based on the theory of Markov processes. With this
analysis we achieve a characterization of the complexity of the surface
roughness by means of a Fokker-Planck or Langevin equation, providing the
complete stochastic information of multiscale joint probabilities. The method
was applied to different road surface profiles which were measured with high
resolution. Evidence of Markov properties is shown. Estimations for the
parameters of the Fokker-Planck equation are based on pure, parameter free data
analysis
Long-time behaviour of discretizations of the simple pendulum equation
We compare the performance of several discretizations of the simple pendulum
equation in a series of numerical experiments. The stress is put on the
long-time behaviour. We choose for the comparison numerical schemes which
preserve the qualitative features of solutions (like periodicity). All these
schemes are either symplectic maps or integrable (preserving the energy
integral) maps, or both. We describe and explain systematic errors (produced by
any method) in numerical computations of the period and the amplitude of
oscillations. We propose a new numerical scheme which is a modification of the
discrete gradient method. This discretization preserves (almost exactly) the
period of small oscillations for any time step.Comment: 41 pages, including 18 figures and 4 table
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