34 research outputs found

    Innovation activities of gazelles in business services as a factor of sustainable growth in the Slovak Republic

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    International audienceGazelles create greater share of new jobs in comparison with other businesses operating on the market. These are young businesses of various sizes, but mainly small businesses. They generate a high rate of growth of production within a short time, which is based on the use of innovation, they are also the bearers of innovation. They are characterized by effective use of creativity and human resource capacities. They may be found in all sectors of economy, but to the greatest extent in the services sector and within that sector mainly in business services characterized by high knowledge intensity, high dynamics and continuous growth in employment. Gazelles of business services in the Slovak Republic intensively use all types of innovation. Management ability to optimize innovative processes according to needs of the enterprise seems to be of importance. Human resources and performance is considered to be the most important area of innovation influence. With its innovative activity they act as the accelerator of economy and changes in the thinking and culture of both enterprises, as well as the whole company toward sustainable growth

    The Physiology and Proteomics of Drought Tolerance in Maize: Early Stomatal Closure as a Cause of Lower Tolerance to Short-Term Dehydration?

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    Understanding the response of a crop to drought is the first step in the breeding of tolerant genotypes. In our study, two maize (Zea mays L.) genotypes with contrasting sensitivity to dehydration were subjected to moderate drought conditions. The subsequent analysis of their physiological parameters revealed a decreased stomatal conductance accompanied by a slighter decrease in the relative water content in the sensitive genotype. In contrast, the tolerant genotype maintained open stomata and active photosynthesis, even under dehydration conditions. Drought-induced changes in the leaf proteome were analyzed by two independent approaches, 2D gel electrophoresis and iTRAQ analysis, which provided compatible but only partially overlapping results. Drought caused the up-regulation of protective and stress-related proteins (mainly chaperones and dehydrins) in both genotypes. The differences in the levels of various detoxification proteins corresponded well with the observed changes in the activities of antioxidant enzymes. The number and levels of up-regulated protective proteins were generally lower in the sensitive genotype, implying a reduced level of proteosynthesis, which was also indicated by specific changes in the components of the translation machinery. Based on these results, we propose that the hypersensitive early stomatal closure in the sensitive genotype leads to the inhibition of photosynthesis and, subsequently, to a less efficient synthesis of the protective/detoxification proteins that are associated with drought tolerance

    Adaptation of photosynthetic apparatus of inbred and hybrid maize genotypes to temperature changes

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    Department of Genetics and MicrobiologyKatedra genetiky a mikrobiologieFaculty of SciencePřírodovědecká fakult

    European Union's Police Missions as Part of Civil Crisis Management

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    This essay deals with analysis of the phenomenon of EU's police missions as an integral part of civilian crisis management within European Security and Defense Policy. It outlined the development and evaluation of EU's operational civilian capabilities. The focus of the work is an analysis and comparison of selected police missions in terms of conditions that the EU can not influence to such an extent and that still deeply affect the course of implementation of the mission. The study also deals with the evaluation of concrete operations in terms of successful fulfillment of their mandates. Our research question relates to the external conditions of a total of five realized EU's police missions. Our presumption is the claim that socio-economic context of a country deeply influence the course of EU's action and therefore has an impact on the fulfillment of the mandate of police missions. Considerations to what extent is EU itself responsible for the success or failure of each mission and how external factors affect the mission objectives led us to the choice of topic

    Different response of maize inbred and hybrid genotypes to drought: analysis of leaf proteome and photosynthetic processes

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    Drought is one of the most important stress factors affecting plants. Increasing drought resistance via plant breeding is currently the main approach for improvement of plant productivity and reduction of water usage. Plant breeders and scientists search for reliable and easy methods of the determination of drought sensitivity in different genotypes. A precise knowledge about processes underlying plant stress response and defence against limited water availability is necessary for this. The aim of this study was a detailed analysis of photosynthetic processes and changes in leaf proteome (again aimed especially at proteins involved in photosynthesis) during drought stress. This analysis was a part of a complex project focused on the possible causes of genetic variability and drought resistance in agronomically important crops. Another goal was to analyse whether the measurement of selected photosynthetic parameters can be used for the determination of drought sensitivity per se and/or for the prediction of the response of hybrids based on known behaviour of their parents. Young plants of maize inbred lines and their hybrids were used as a model for this analysis, which was made under conditions of moderate and more severe drought. Two inbred lines which were (together with their F1 hybrids) used..

    Nursing Care of the Patient with Acute Pancreatitis

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    Department of nursingÚstav ošetřovatelství3. lékařská fakultaThird Faculty of Medicin

    Different response of maize inbred and hybrid genotypes to drought: analysis of leaf proteome and photosynthetic processes

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    Drought is one of the most important stress factors affecting plants. Increasing drought resistance via plant breeding is currently the main approach for improvement of plant productivity and reduction of water usage. Plant breeders and scientists search for reliable and easy methods of the determination of drought sensitivity in different genotypes. A precise knowledge about processes underlying plant stress response and defence against limited water availability is necessary for this. The aim of this study was a detailed analysis of photosynthetic processes and changes in leaf proteome (again aimed especially at proteins involved in photosynthesis) during drought stress. This analysis was a part of a complex project focused on the possible causes of genetic variability and drought resistance in agronomically important crops. Another goal was to analyse whether the measurement of selected photosynthetic parameters can be used for the determination of drought sensitivity per se and/or for the prediction of the response of hybrids based on known behaviour of their parents. Young plants of maize inbred lines and their hybrids were used as a model for this analysis, which was made under conditions of moderate and more severe drought. Two inbred lines which were (together with their F1 hybrids) used..

    The Changes of Body Temperature of Patients during a Medical Procedure in Total Anesthesia

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    The first part of the present dissertation shows mechanisms of keeping of body temperature in an optimum range as well as it divides and evaluates range of body temperature. My dissertation also deals with the ways of measurement of body temperature, methods of measurement and tools which are neccessary for measurement of body temperature. Another part presents characteristics of aneshtesia its division, ways of application and tools which are used for total anesthesia. It is also described an observation of body temperature during total anesthesia, negative consequences of hypothermia, regulations of body temperature during total anesthesia and prevention and treatment of hypothermia. There are descriptions of targets and hypothesis in the second part. There were made five hypothesis. The third part shows methods of collecting data itself. They are results of stucture observation of changes of body temperature of patiens in total anesthesia during surgery.The fourth part are charts and graphs showing results of measurements of body temperature of our patients in total anesthesia as well as results of the questionnaires based on answers from asked nurses. There are particular hypothesis and their results in discussion part. Hypothesis H1 was proved. Hyphothesis H2 is not possible to be disproved. Hyphothesis H3 was not proved. Hyphothesis H4 was proved and hyphotesis H5 was proved. We can deduce from the results that active use of tools for keeping body temperature in a physiological range can prevent decrease of body temperature. It is clear from the questionnaires that nurses are aware of complications connected to hypothermia. They actively use tools for keeping body temperature in physiological range. There is a summary in the conclusion of the dessertation whether all estimated targets were accomplished. As a result of the dissertation we can assume that using of tools for keeping body temperature of total anasthesia patients should be a standard. There should be also a standard to measure body temperature during an operation in total anasthesia itself

    In vitro expansion and activation of natural killer cells for cell therapy.

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    NK cells are part of the non-specific immune response and are one of the main components of antitumor immunity. They do not need antigen stimul for thein activation but recognize damaged ( transformed ) cells by characteristic decreased expression of MHC I molecules. These natural killers become subjekt of many clinical studies based on the use of anti-tumor activity of NK cells for both solid tumors and in hemato - oncological diseases. The aim of this study was to find optimal conditions for in vitro expansion and activation of NK cells. NK cells were isolated from mononuclear cell fraction by magnetic separation and cultured in two types of media SCGM and X - VIVO 10 with the addition of interleukin-2 respectively OKT3 antibody. The influence of the mononuclear cells on proliferation of NK cells was tested. After a 6- day culture , the cells were passaged and growth of NK cells was determined using hematological analyzer and flow cytometry. Expression of the activation markers CD25 and CD336 (NKp44) was observed. All experiments were conducted under conditions of good manufacturing practice. Slightly higher gain of NK cells was observed in SCGM media without a significant differences in the other additives. Much higher number of NK cells was observed in culture with supporting irradiated mononuclear cells. There were no differences in cultures with autologous or allogeneic cells. We found that NK cells with higher proliferative potential express increasingly CD25, unlike the cells with decreased proliferation which had increased expression of CD336 marker. The work led to the definition of the optimal culture conditions for NK cells and became the basis for the further development of the medicinal product from in vitro activated NK cells

    Relation between Mid-Regional Pro-Adrenomedullin in Patients with Chronic Heart Failure and the Dose of Diuretics in 2-Year Follow-Up—Data from FAR NHL Registry

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    Background and Objectives: The aim of this paper is to evaluate the impact of humoral substance mid-regional pro-adrenomedullin (MR-proADM) on the two-year survival of patients with chronic heart failure and relate it to the dosage of furosemide. Materials and Methods: The data is taken from the stable systolic heart failure (EF < 50%) FAR NHL registry (FARmacology and NeuroHumoraL activation). The primary endpoint at two-year follow-up was death, heart transplantation, or LVAD implantation. Results: A total of 1088 patients were enrolled in the FAR NHL registry; MR-proADM levels were available for 569 of them. The mean age was 65 years, and 81% were male. The aetiology of HF was ischemic heart disease in 53% and dilated cardiomyopathy in 41% of patients. The mean EF was 31 ± 9%. Statistically significant differences (p < 0.001) were obtained in several parameters: patients with higher MR-proADM levels were older, rated higher in NYHA class, suffered more often from lower limb oedema, and had more comorbidities such as hypertension, atrial fibrillation, diabetes, and renal impairment. MR-proADM level was related to furosemide dose. Patients taking higher doses of diuretics had higher MR-proADM levels. The mean MR-proADM level without furosemide (n = 122) was 0.62 (±0.55) nmol/L, with low dose (n = 113) 1–39 mg/day was 0.67 (±0.30) nmol/L, with mid dose (n = 202) 40–79 mg/day was 0.72 (±0.34) nmol/L, with high dose (n = 58) 80–119 mg/day was 0.85 (±0.40) nmol/L, and with maximum dose (n = 74) ≥120 mg/day was 1.07 (±0.76) nmol/L, p < 0.001. Patients with higher MR-proADM levels were more likely to achieve the primary endpoint at a two-year follow-up (p < 0.001) according to multivariant analysis. Conclusions: Elevated plasma MR-proADM levels in patients with chronic heart failure are associated with an increased risk of death and hospitalization. Higher MR-proADM levels in combination with increased use of loop diuretics reflect residual congestion and are associated with a higher risk of severe disease progression
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