scholarly journals A high-tech closer look to evaluate the impact of oocyte vitrification on embryo quality

2017 ◽  
Vol 108 (3) ◽  
pp. 448-449
Author(s):  
Mónica H. Vazquez-Levin
2018 ◽  
Vol 35 (2) ◽  
pp. 3-9
Author(s):  
M. S. Abrashkin

The article presents a study on the assessment of the impact of science-intensive machine building on the development of the regional economy and increasing its competitiveness. Based on the analysis of foreign sources, a theoretical justification was given for increasing the regional competitiveness of the economy. The tools of regional support of enterprises of science-intensive machine building and the model of the organizational and economic mechanism for regional development of science-intensive machine building were proposed. It has been proven that the development of science-intensive machine building influences the competitiveness of the region. 


2003 ◽  
Vol 48 (4) ◽  
pp. 139-146 ◽  
Author(s):  
B. Wett ◽  
J. Alex

A separate rejection water treatment appears as a high-tech unit process which might be recommendable only for specific cases of an upgrading of an existing wastewater treatment plant. It is not the issue of this paper to consider a specific separate treatment process itself but to investigate the influence of such a process on the overall plant performance. A plant-wide model has been applied as an innovative tool to evaluate effects of the implemented sidestream strategy on the mainstream treatment. The model has been developed in the SIMBA environment and combines acknowledged mathematical descriptions of the activated sludge process (ASM1) and the anaerobic mesophilic digestion (Siegrist model). The model's calibration and validation was based on data from 5 years of operating experience of a full-scale rejection water treatment. The impact on the total N-elimination efficiency is demonstrated by detailed nitrogen mass flow schemes including the interactions between the wastewater and the sludge lane. Additionally limiting conditions due to dynamic N-return loads are displayed by the model's state variables.


Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1414
Author(s):  
Josep M. Cambra ◽  
Emilio A. Martinez ◽  
Heriberto Rodriguez-Martinez ◽  
Maria A. Gil ◽  
Cristina Cuello

The development of chemically defined media is a growing trend in in vitro embryo production (IVP). Recently, traditional undefined culture medium with bovine serum albumin (BSA) has been successfully replaced by a chemically defined medium using substances with embryotrophic properties such as platelet factor 4 (PF4). Although the use of this medium sustains IVP, the impact of defined media on the embryonic transcriptome has not been fully elucidated. This study analyzed the transcriptome of porcine IVP blastocysts, cultured in defined (PF4 group) and undefined media (BSA group) by microarrays. In vivo-derived blastocysts (IVV group) were used as a standard of maximum embryo quality. The results showed no differentially expressed genes (DEG) between the PF4 and BSA groups. However, a total of 2780 and 2577 DEGs were detected when comparing the PF4 or the BSA group with the IVV group, respectively. Most of these genes were common in both in vitro groups (2132) and present in some enriched pathways, such as cell cycle, lysosome and/or metabolic pathways. These results show that IVP conditions strongly affect embryo transcriptome and that the defined culture medium with PF4 is a guaranteed replacement for traditional culture with BSA.


2021 ◽  
Vol 13 (10) ◽  
pp. 5467
Author(s):  
Barbara Grabinska ◽  
Dorota Kedzior ◽  
Marcin Kedzior ◽  
Konrad Grabinski

So far, CSR’s role in the high-tech industry is not fully explained by academic research, especially concerning the most burdensome obstacle to firms’ growth: acquiring debt financing. The paper aims to solve this puzzle and investigate whether young high-tech companies can attract more debt by engaging in CSR activity. To address the high-tech industry specificity, we divided CSR-reporting practice into three broad categories: employee, social, and environmental and analyzed their impact on the capital structure. Our sample consists of 92 firm-year observations covering the period 2014–2018. Using a regression method, we found out that only employee CSR plays a statistically significant role in shaping capital structure. We did not find evidence for the influence of the other types of CSR-reporting practices. The results suggest that employees are the key resource of high-tech companies, and, for this reason, they are at the management’s focus. This fact is visible at the financial reporting level and, as we interpret results, is also considered by credit providers. In a more general way, our results suggest that firms tend to choose CSR based on the importance of crucial resources.


2021 ◽  
Vol 13 (11) ◽  
pp. 6294
Author(s):  
Peiqing Zhu ◽  
Jianbo Song

Internal control plays a role in risk prevention for firms when dealing with serious emergencies, which ensures the sustainable development of firms during a crisis. Based on the rapid outbreak of COVID-19 in China, this paper empirically tests whether internal control alleviates the negative impact of the pandemic on firm performance. Using a sample of Chinese listed firms from the first quarter of 2019 to the third quarter of 2020 and employing the difference-in-difference (DID) method, we find that the firms with a higher quality of internal control achieve better financial performance during the pandemic period; the more serious the pandemic is, the more obvious effect internal control plays. Furthermore, we consider the industry heterogeneity and firm heterogeneity of the risk resistance effect of internal control. In the manufacturing industry, which is a “disaster zone” of the pandemic, and the non-high-tech industry with a low degree of digitization, internal control can play a more important role in firms’ performance. Moreover, for state-owned enterprises, and firms with strong financing constraints, the role of internal control is more prominent. The above results provide empirical evidence for the risk prevention function of internal control and shed new light on the measures for firms to resist emergencies in the future.


2014 ◽  
Vol 22 (03) ◽  
pp. 283-311 ◽  
Author(s):  
Sondes Kacem ◽  
Sana El Harbi

Currently, innovation is a major challenge in emerging economies such as Tunisia. Although the influence of leadership seems evident in the implementation of innovations, few studies have investigated this impact; especially for SMEs in the ICT sector. For this purpose, we propose to highlight the impact of leadership on the implementation of innovations in SMEs through exploratory qualitative study of five small and medium enterprises (SMEs) in the high-tech sector in Tunisia, to understand the management styles of the chief executive officers (CEOs) and their motivations towards innovative activities. The results of this investigation show that the style of leadership in the ICT sector is both participative and transformational. Only organizational innovation has been detected. Collaborative work and group cohesion are the major cultural aspects of innovation. Items from this exploration allows us to clarify aspects of three basic concepts that make up our conceptual model (leadership, culture of innovation, and innovations) for testing later under a quantitative study by the method of structural equation modeling.


Author(s):  
Xiaobo Yin ◽  
Liyan Guo

AbstractHigh-tech industrial agglomeration is conducive to boosting technological progress, promoting industrial structure upgrading and realizing economic transformation, and certainly affects the overall industrial environmental efficiency. However, few recent studies have focused on its impact on industrial environmental efficiency from a green perspective. In the context of promoting the development of green economy, it is of great significance to clarify the links between high-tech industrial agglomeration and industrial environmental efficiency. In this research, we first analyzed the theoretical mechanism of the impact of high-tech industrial agglomeration and its spatial spillover effects on industrial environmental efficiency and then made an empirical analysis based on the panel data of 29 provinces and cities in China from 2003 to 2016. During the research, Super-DEA method, ESDA method and spatial Dubin model are used. The result shows that: (1) There is a significant spatial positive correlation between China's industrial environmental efficiency and high-tech industrial agglomeration; (2) high-tech industrial agglomeration has improved the local industrial productivity and industrial technology level through scale effects and technical effects, which has accordingly significantly enhanced the corresponding environmental efficiency; (3) through the association of regional industries, the cross-regional cooperation of enterprises and the formation of innovation networks, high-tech industrial agglomeration promotes the spillover of knowledge and technology among regions, improves the level of industrial technology in neighboring regions, and enhances the industrial environmental efficiency in neighboring regions. All these three is helpful to re-evaluate the development mode of high-tech industry agglomeration and to formulate relevant government policies.


2021 ◽  
Vol 6 (2) ◽  
pp. 100-104
Author(s):  
Liudmyla Tsymbal

The article identifies the key conceptual foundations for the formation of intellectual leadership of economic entities, including countries as specific actors in the global economy. Thorough preconditions for increasing the level of economic development and the impact of education have been identified. It is determined that historical concepts and modern realities of economic activity only actualize the role of education and enlightenment in the economic development of the national economy and ensuring its competitiveness. The strategies of increasing the competitiveness of individual countries of the world are analyzed, their key priorities in the conditions of formation of the knowledge economy are determined. The evolution of views on the role of human and intellectual capital in increasing the welfare of countries, the impact on GDP and other macroeconomic indicators is described. The ratings of countries are analyzed, in particular by the level of investment in intellectual capital and the structure of their GDP, which confirms the dominance of science-intensive economic activities. In addition, it was determined that the leading countries are characterized by increasing the role of knowledge-intensive activities, increasing the share of intangible assets, redistribution of capital of leading international companies and increasing research spending, increasing investment in human and intellectual capital, increasing exports of high-tech products. Analytical assessment confirms the advanced development of science-intensive industries in countries with developed economies, which creates the need for training and retraining of specialists needed for such industries. In modern conditions, the educational process ceases to be predominantly the prerogative of young people, and becomes a lifelong process, which increases spending on education in developed countries, but without denying the significant asymmetries on this indicator. Research confirms the direct relationship between the quality of human and physical capital and economic development, which is typical of highly developed countries, one of the main reasons for the development lag of the poorest countries. In addition, the article substantiates the key factors of intellectual leadership and their impact on the development of economic development strategies.


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