134 research outputs found
Family enterprise and technological innovation
Family enterprises in China have significant impact on China’s social and economic development. Yet did technological innovation in Chinese family enterprise play a role on this impact? We examine the role that technology innovation played in the rise in importance of Chinese family businesses. We analyze the impact of family enterprises on companies’ technological innovation through both family ownership and family management involvement. We further scrutinize how Chinese family-owned business internationalization strategies affected their technological innovation activities. The authors show that family ownership without family management involvement has a negative relations with companies’ technical innovation. We further demonstrate that family ownerships with family management involvement have a positive relations with enterprises’ technical innovation. Our study provides some effective measures to increase the investment in firms’ technical innovation and minimize the disadvantages of family business. The research result has practical significance in the governance of family enterprises
Family enterprise and technological innovation
This is the final version. Available on open access from Elsevier via the DOI in this recordFamily enterprises in China have significant impact on China’s social and economic development. Yet did technological innovation in Chinese family enterprise play a role on this impact? We examine the role that technology innovation played in the rise in importance of Chinese family businesses. We analyze the impact of family enterprises on companies’ technological innovation through both family ownership and family management involvement. We further scrutinize how Chinese family-owned business internationalization strategies affected their technological innovation activities. The authors show that family ownership without family management involvement has a negative relations with companies’ technical innovation. We further demonstrate that family ownerships with family management involvement have a positive relations with enterprises’ technical innovation. Our study provides some effective measures to increase the investment in firms’ technical innovation and minimize the disadvantages of family business. The research result has practical significance in the governance of family enterprises
Is Bitcoin a currency, a technology-based product, or something else?
This is the author accepted manuscript . The finla version is available from Elsevier via the DOI in this recordCryptocurrencies such as Bitcoin have fascinated technologists and investors alike. They have become
prevalent, with over 2,000 Bitcoin-like cryptocurrencies now in use. Most jurisdictions have not regulated
cryptocurrencies. Whether existing regulations apply to cryptocurrency turns ultimately on if we classify
cryptocurrencies as currencies, securities, or derivatives, or a money services (transfer) vehicle. In this set
of exploratory analyses we seek to classify Bitcoin. We utilize a variety of methods to compare aspects of
its behavior to: currencies, asset classes such as derivatives, technology-based products and possible
technology-based products such as Ether and the security SPY, and speculative financial bubbles. We find
that Bitcoin's behavior more closely resembles a technology-based product, an emerging asset class, or a
bubble event, rather than a currency or a security; such that it is correct that existing currency and security
laws should not apply to cryptocurrencies
Is Blockchain mining profitable in the long run?
This is the author accepted manuscript. The final version is available from IEEE via the DOI in this recordBlockchain technologies are at the heart of digital innovation and are a harbinger of Industry 4.0.
Consequently, popular press and academic researchers alike have focused on its importance. Yet
blockchain technologies’ most promising efforts, cryptocurrency and smart contracts, are underpinned
by blockchain mining. The blockchain mining service is undergoing change, cryptocurrencies like
Ethereum and others are nearing the end of their minting. Smart contracts are in their infancy. The
financial impetus for providing the mining service has changed. Here, we add to the literature through
a deep financial analysis of blockchain mining regarding its long-term financial viability. Our
methods include a financial cost analysis and an analysis of the financial viability of cryptocurrency
through focus on Ethereum. It is found that blockchain miners, despite initial profitability, cannot
maintain sustainable financial viability without substantial fees. This work is important to those
academics who focus on understanding how service technologies and products underpin Industry 4.0.
Finally, this paper contributes to the practitioners’ decision-making process to embrace blockchain
mining as a technological entrepreneur
ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets
To understand how Phosphorus-bearing molecules are formed in star-forming regions, we have analysed ALMA observations of PN and PO towards the massive star-forming region AFGL 5142, combined with a new analysis of the data of the comet 67P/Churyumov-Gerasimenko taken with the ROSINA instrument onboard Rosetta. The ALMA maps show that the emission of PN and PO arises from several spots associated with low-velocity gas with narrow linewidths in the cavity walls of a bipolar outflow. PO is more abundant than PN in most of the spots, with the PO/PN ratio increasing as a function of the distance to the protostar. Our data favor a formation scenario in which shocks sputter phosphorus from the surface of dust grains, and gas-phase photochemistry induced by UV photons from the protostar allows efficient formation of the two species in the cavity walls. Our analysis of the ROSINA data has revealed that PO is the main carrier of P in the comet, with PO/PN>10. Since comets may have delivered a significant amount of prebiotic material to the early Earth, this finding suggests that PO could contribute significantly to the phosphorus reservoir during the dawn of our planet. There is evidence that PO was already in the cometary ices prior to the birth of the Sun, so the chemical budget of the comet might be inherited from the natal environment of the Solar System, which is thought to be a stellar cluster including also massive stars
Management goals for type 1 Gaucher disease: An expert consensus document from the European working group on Gaucher disease
AbstractGaucher Disease type 1 (GD1) is a lysosomal disorder that affects many systems. Therapy improves the principal manifestations of the condition and, as a consequence, many patients show a modified phenotype which reflects manifestations of their disease that are refractory to treatment. More generally, it is increasingly recognised that information as to how a patient feels and functions [obtained by patient- reported outcome measurements (PROMs)] is critical to any comprehensive evaluation of treatment. A new set of management goals for GD1 in which both trends are reflected is needed. To this end, a modified Delphi procedure among 25 experts was performed. Based on a literature review and with input from patients, 65 potential goals were formulated as statements. Consensus was considered to be reached when ≥75% of the participants agreed to include that specific statement in the management goals. There was agreement on 42 statements. In addition to the traditional goals concerning haematological, visceral and bone manifestations, improvement in quality of life, fatigue and social participation, as well as early detection of long-term complications or associated diseases were included. When applying this set of goals in medical practice, the clinical status of the individual patient should be taken into account
BASECOL2023 scientific content
Context. The global context of making numerous data produced by researchers available requires collecting and organising the data, assigning meaningful metadata, and presenting the data in a meaningful and homogeneous way. The BASECOL database, which collects inelastic rate coefficients for application to the interstellar medium and to circumstellar and cometary atmospheres, meets those requirements. Aims. We aim to present the scientific content of the BASECOL2023 edition. Methods. While the previous versions relied on finding rate coefficients in the literature, the current version is populated with published results sent by the producers of data. The paper presents the database, the type of data that can be found, the type of metadata that are used, and the Virtual Atomic and Molecular Data Centre (VAMDC) standards that are used for the metadata. Finally, we present the different datasets species by species. Results. As the BASECOL database, interconnected with the VAMDC e-infrastructure, uses the VAMDC standards, the collisional data can be extracted with tools using VAMDC standards and can be associated with spectroscopic data extracted from other VAMDC connected databases such as the Cologne database for molecular spectroscopy (CDMS), the jet propulsion laboratory molecular spectroscopy database (JPL), and the high-resolution transmission molecular absorption database (HITRAN)
Analysis of performance in Depth Based Routing for Underwater Wireless Sensor Networks
In the last decade, Underwater Wireless Sensor Networks (UWSNs) have been widely studied because of their peculiar aspects that distinguish them from common wireless terrestrial networks. In fact, most UWSNs use acoustic instead of radio-frequency based communications, and nodes are subject to high mobility caused by water currents. As a consequence, specialized routing algorithms have been developed to tackle this challenging scenario. Depth based Routing (DBR) is one of the first protocols that have been developed to this aim, and is still widely adopted in actual implementations of UWSNs. In this paper we propose a stochastic analysis that aims at evaluating the performance of UWSNs using DBR in terms of expected energy consumption and expected end-to-end delay. Under a set of assumptions, we give expressions for these performance indices that can be evaluated efficiently, and hence they can be adopted as the basis for optimizing the configuration parameters of the protocol
Bi-allelic genetic variants in the translational GTPases GTPBP1 and GTPBP2 cause a distinct identical neurodevelopmental syndrome
: The homologous genes GTPBP1 and GTPBP2 encode GTP-binding proteins 1 and 2, which are involved in ribosomal homeostasis. Pathogenic variants in GTPBP2 were recently shown to be an ultra-rare cause of neurodegenerative or neurodevelopmental disorders (NDDs). Until now, no human phenotype has been linked to GTPBP1. Here, we describe individuals carrying bi-allelic GTPBP1 variants that display an identical phenotype with GTPBP2 and characterize the overall spectrum of GTP-binding protein (1/2)-related disorders. In this study, 20 individuals from 16 families with distinct NDDs and syndromic facial features were investigated by whole-exome (WES) or whole-genome (WGS) sequencing. To assess the functional impact of the identified genetic variants, semi-quantitative PCR, western blot, and ribosome profiling assays were performed in fibroblasts from affected individuals. We also investigated the effect of reducing expression of CG2017, an ortholog of human GTPBP1/2, in the fruit fly Drosophila melanogaster. Individuals with bi-allelic GTPBP1 or GTPBP2 variants presented with microcephaly, profound neurodevelopmental impairment, pathognomonic craniofacial features, and ectodermal defects. Abnormal vision and/or hearing, progressive spasticity, choreoathetoid movements, refractory epilepsy, and brain atrophy were part of the core phenotype of this syndrome. Cell line studies identified a loss-of-function (LoF) impact of the disease-associated variants but no significant abnormalities on ribosome profiling. Reduced expression of CG2017 isoforms was associated with locomotor impairment in Drosophila. In conclusion, bi-allelic GTPBP1 and GTPBP2 LoF variants cause an identical, distinct neurodevelopmental syndrome. Mutant CG2017 knockout flies display motor impairment, highlighting the conserved role for GTP-binding proteins in CNS development across species
BASECOL2012: A collisional database repository and web service within the Virtual Atomic and Molecular Data Centre (VAMDC)
The BASECOL2012 database is a repository of collisional data and a web service within the Virtual Atomic and Molecular Data Centre (VAMDC, http://www.vamdc.eu). It contains rate coefficients for the collisional excitation of rotational, ro-vibrational, vibrational, fine, and hyperfine levels of molecules by atoms, molecules, and electrons, as well as fine-structure excitation of some atoms that are relevant to interstellar and circumstellar astrophysical applications. Submissions of new published collisional rate coefficients sets are welcome, and they will be critically evaluated before inclusion in the database. In addition, BASECOL2012 provides spectroscopic data queried dynamically from various spectroscopic databases using the VAMDC technology. These spectroscopic data are conveniently matched to the in-house collisional excitation rate coefficients using the SPECTCOL sofware package (http:// vamdc.eu/software), and the combined sets of data can be downloaded from the BASECOL2012 website. As a partner of the VAMDC, BASECOL2012 is accessible from the general VAMDC portal (http://portal.vamdc.eu) and from user tools such as SPECTCOL
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