993 research outputs found
The Collaboration of Human Resource Management and Line Management–An International Comparison
The extant research advocates for the strategic integration of human resource management (HRM) in managerial decision making to foster firm performance. However, the empirical evidence of a stronger strategic integration of HRM is still limited, especially in terms of strategic guidelines such as a human resource (HR) strategy and international comparative matters. Drawing on responses from 588 German and US-based organizations and related to the new institutionalism theory, this study examines whether a HRM partnership (i.e., sharing responsibilities between HRM and line management) that represents a particular form of strategic integration of HRM is beneficial for organizations. In particular, we find international differences as a more pronounced HRM partnership increases employee turnover in the USA, whereas no significant changes are encountered in Germany. We further demonstrate that organizations located in the USA are more likely to have a formal HR strategy compared to those in Germany. However, this study can neither provide support for the direct effect of a HRM partnership on employee turnover nor of a moderation of this relationship through the HR strategy
Recognizing opportunities across campus: the effects of cognitive training and entrepreneurial passion on the business opportunity prototype
We analyze the effects of the program Cognitive Entrepreneurial Training in Opportunity Recognition on the accurate assessment of prototypical viability of business opportunities. The training integrates the principles of experiential learning and is designed to reach students across campus. We also investigate the moderating role of entrepreneurial passion on opportunity recognition learning. We use a quasi-experimental design with pre-test, post-test in two European universities. The results demonstrate that the training has positive significant effects on the accurate identification of business opportunities' prototypical viability. Intense positive feelings about entrepreneurship moderate the learning process. We provide insights into entrepreneurship education practice across campus.info:eu-repo/semantics/publishedVersio
Joint H.E.S.S. and Fermi-LAT analysis of the region around PSR J1813-1749
HESS J1813-178 is one of the brightest sources detected during the first HESS
Galactic Plane survey. The compact source, also detected by MAGIC, is believed
to be a pulsar wind nebula powered by one of the most powerful pulsars known in
the Galaxy, PSR J1813-1749 with a spin-down luminosity of . With its extreme physical
properties, as well as the pulsar's young age of 5.6 kyrs, the -rays
detected in this region allow us to study the evolution of a highly atypical
system. Previous studies of the region in the GeV energy range show emission
extended beyond the size of the compact H.E.S.S. source. Using the archival
H.E.S.S. data with improved background methods, we perform a detailed
morphological and spectral analysis of the region. Additionally to the compact,
bright emission component, we find significantly extended emission, whose
position is coincident with HESS J1813-178. We reanalyse the region in GeV and
derive a joint-model in order to find a continuous description of the emission
in the region from GeV to TeV. Using the results derived in this analysis, as
well as X-ray and radio data of the region, we perform multi-wavelength
spectral modeling. Possible hadronic or leptonic origins of the -ray
emission are investigated, and the diffusion parameters necessary to explain
the extended emission are examined.Comment: 8 pages, 4 figures, 1 table, In proceedings of ICRC202
The influence of selected NSAIDs on volume phase transition in poly(2-(2-methoxyethoxy)ethyl methacrylate) hydrogels
Dual Stimuli-Responsive Polysaccharide Hydrogels Manufactured by Radiation Technique
Featured Application Stimuli-responsive hydrogels encompassing biobased polymers are anticipated for utilization in various fields, starting from drug delivery systems through temporal actuators and water reservoirs to biodegradable microelements and nutrient delivery depots. This paper describes the results of the radiation-induced crosslinking of polysaccharides modified with hydroxypropyl and carboxymethyl functional groups, hydroxypropylcellulose (HPC) and carboxymethylcellulose (CMC), respectively, without and with poly(ethylene glycol) diacrylate (PEGDA) as a crosslinking agent, to obtain dual stimuli-responsive hydrogels. The gels were characterized in terms of water uptake and gel fraction, parameters that mainly depend on the HPC-CMC compositions, but also on the macromer crosslinker content and the absorbed dose. The swelling of hydrogels is controlled by both the temperature, due to the amphiphilic character of HPC and pH, due to the anionic functional groups of CMC. In spite of a similar degree of substitution in both cellulose derivatives, 1.4 for HPC and 1.2 for CMC, the pH response of hydrogels with an equal content of both polysaccharides is considerably higher-a reduction in swelling of up to 95% with a decrease in the pH to 2 was recorded-than the response to thermal-stimulus-wherein a reduction in swelling of less than 70% with an increasing in temperature to 55 degrees C was found. These biopolymers-based hydrogels of specific, stimuli-responsive swelling properties are anticipated in applications where a combination of two stimuli is essential and biodegradation may be required
Моделирование регистрации высокоэнергетических гамма-квантов в СПО GEANT4
Целью работы является определение эффективности регистрации y-квантов с энергиями до 20 МэВ, получаемых на установке ИДМ-40, при различных вариантах расположения сцинтилляционных NaI(Tl) детекторов. В результате исследования создан программный код, позволяющий с помощью метода Монте-Карло моделировать аппаратурные спектры y-квантов с учетом характеристик реальных детекторов, а также получены кривые эффективности регистрации y-квантов детекторами при различных вариантах их расположения.The objective of the present work is to determine the efficiency of gamma quanta registration with quanta energy below 20 MeV. The registration of gamma quanta is performed using scintillation NaI(Tl) detectors. As a result of this study, the Monte-Carlo code which allows to simulate instrumental spectra of gamma quanta using the properties of real detectors was created. Gamma quanta registration efficiency curves were obtained by Monte-Carlo simulation for different options of detectors emplacement
Carbon nanoparticles fabricated by infrared laser ablation of graphite and polycrystalline diamond targets
This paper presents the results of carbon nanoparticles (CNPs) production by infrared laser ablation of a graphite or a polycrystalline diamond target, submerged in one of two solvents, water or isopropanol. The targets were irradiated using a SPI fibre laser with a wavelength of 1064nm being operated at different average powers. After laser-assisted synthesis of CNPs, the resulting colloids, i.e particles in a liquid medium, were examined using the analytical techniques of dynamic light scattering, UV-Vis, Raman spectroscopy and fluorescence spectroscopy. The results show that the properties of CNPs strongly depend on processing conditions of the liquid phase-pulsed laser ablation (LP-PLA) process. In particular, the size of nanoparticles produced are affected by the processing parameters of the laser ablation. The results show that the laser processing of a graphite target in deionised water and in isopropanol produces carbon nanoparticles with properties that are beneficial for various biochemical and biomedical applications. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei
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