scholarly journals THE ROLE OF TECHNICAL AND NATURAL SCIENCES IN STONE MONUMENTS CARE

2021 ◽  
Vol 30 (4) ◽  
Author(s):  
Eva Matoušková ◽  
Kateřina Kovářová

Stone monuments maintenance requires the systematic approach which should be based on the cooperation among specialist through more branches, especially from humanities, natural and technical sciences. The main aim of this article is to present the benefit of the cooperation among geologists and civil engineers and share preliminary results of the Czech Ministry of Culture project DG20P02OVV021 “Stone surface topography and its application in stone element restoration field”. Historic stone surfaces often contain stonemasons tool traces as an undoubtable part of historical monument value. The study and protection of the testimony of past is therefore very important. As a part of our project, we are conducting field and laboratory research of historic stone surfaces bearing the original tool traces. The studied area is the Prague urban conservation zone for its stone monuments richness from Romanesque to present days. First, the geological research of the stone masonry surface is conducted in the cooperation with archaeologists. The tool traces are documented, and the state of stone is described. Because of the negative influence of weathering processes on the stone durability, respectively tool traces, we decided to monitor the chosen historical stone surface using the hyperspectral analysis. Based on the analysis results we will be able to better understand the behaviour of stone surface and traces on it during the time.

2017 ◽  
Vol 38 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Jeffrey H. Kahn ◽  
Daniel W. Cox ◽  
A. Myfanwy Bakker ◽  
Julia I. O’Loughlin ◽  
Agnieszka M. Kotlarczyk

Abstract. The benefits of talking with others about unpleasant emotions have been thoroughly investigated, but individual differences in distress disclosure tendencies have not been adequately integrated within theoretical models of emotion. The purpose of this laboratory research was to determine whether distress disclosure tendencies stem from differences in emotional reactivity or differences in emotion regulation. After completing measures of distress disclosure tendencies, social desirability, and positive and negative affect, 84 participants (74% women) were video recorded while viewing a sadness-inducing film clip. Participants completed post-film measures of affect and were then interviewed about their reactions to the film; these interviews were audio recorded for later coding and computerized text analysis. Distress disclosure tendencies were not predictive of the subjective experience of emotion, but they were positively related to facial expressions of sadness and happiness. Distress disclosure tendencies also predicted judges’ ratings of the verbal disclosure of emotion during the interview, but self-reported disclosure and use of positive and negative emotion words were not associated with distress disclosure tendencies. The authors present implications of this research for integrating individual differences in distress disclosure with models of emotion.


Author(s):  
R. A. Orekhov ◽  

There is a common point of view in Egyptology that Memphis was a state capital since the earliest times and that its protecting gods were Ptah and his spouse Sekhmet. Arguing this concept, the author tries to find the reason why a pyramid city of Pepi I — Mennefer — became a core of the future capital. The main conclusion is following: Constructing his pyramid complex, Pepi I probably included into it a cult center of Habes where Bastet and Imhotep, a high priest of Ra, were worshiped. Imhotep, a companion of the king Djoser, was known as a priest and charmer who tamed the fiery forces of Sirius associated with Bastet, after which the great drought was over. To commemorate this, New Year celebration and the first sun calendar were established. Imhotep’s tomb became an important cult place, where ceremonies important for surviving of the Egyptian state were conducted. In the second half of the Old Kingdom period the Nile started to flood much less, which led to the decline of agriculture. Thus, the role of the cult center of Habes and Imhotep grew greatly. By including Habes, Pepi protected the dominion of his pyramid city from negative influence of Bastet and decreased flooding. The fact that Mennefer was a successor of the aforementioned cult center determined its capital functions in future.


Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1279
Author(s):  
Tyler Madsen ◽  
Kristie Franz ◽  
Terri Hogue

Demand for reliable estimates of streamflow has increased as society becomes more susceptible to climatic extremes such as droughts and flooding, especially at small scales where local population centers and infrastructure can be affected by rapidly occurring events. In the current study, the Hydrology Laboratory-Research Distributed Hydrologic Model (HL-RDHM) (NOAA/NWS, Silver Spring, MD, USA) was used to explore the accuracy of a distributed hydrologic model to simulate discharge at watershed scales ranging from 20 to 2500 km2. The model was calibrated and validated using observed discharge data at the basin outlets, and discharge at uncalibrated subbasin locations was evaluated. Two precipitation products with nominal spatial resolutions of 12.5 km and 4 km were tested to characterize the role of input resolution on the discharge simulations. In general, model performance decreased as basin size decreased. When sub-basin area was less than 250 km2 or 20–40% of the total watershed area, model performance dropped below the defined acceptable levels. Simulations forced with the lower resolution precipitation product had better model evaluation statistics; for example, the Nash–Sutcliffe efficiency (NSE) scores ranged from 0.50 to 0.67 for the verification period for basin outlets, compared to scores that ranged from 0.33 to 0.52 for the higher spatial resolution forcing.


Genetics ◽  
2001 ◽  
Vol 158 (3) ◽  
pp. 1027-1036 ◽  
Author(s):  
Cletus A D'Souza ◽  
Bee Na Lee ◽  
Thomas H Adams

Abstract We showed previously that a ΔfluG mutation results in a block in Aspergillus nidulans asexual sporulation and that overexpression of fluG activates sporulation in liquid-submerged culture, a condition that does not normally support sporulation of wild-type strains. Here we demonstrate that the entire N-terminal region of FluG (∼400 amino acids) can be deleted without affecting sporulation, indicating that FluG activity resides in the C-terminal half of the protein, which bears significant similarity with GSI-type glutamine synthetases. While FluG has no apparent role in glutamine biosynthesis, we propose that it has an enzymatic role in sporulation factor production. We also describe the isolation of dominant suppressors of ΔfluG(dsg) that should identify components acting downstream of FluG and thereby define the function of FluG in sporulation. The dsgA1 mutation also suppresses the developmental defects resulting from ΔflbA and dominant activating fadA mutations, which both cause constitutive induction of the mycelial proliferation pathway. However, dsgA1 does not suppress the negative influence of these mutations on production of the aflatoxin precursor, sterigmatocystin, indicating that dsgA1 is specific for asexual development. Taken together, our studies define dsgA as a novel component of the asexual sporulation pathway.


Fibers ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Marek Gryta

Only nonwetted porous membranes can be used in membrane distillation. The possibility of application in this process the capillary polypropylene membranes manufactured by thermally-induced phase separation was studied. The performance of a few types of membranes available commercially was presented. The resistance of the membranes to wetting was tested in the continuous process of water desalination. These studies were carried out for 1000 h without module cleaning. The presence of scaling layer on the membranes surface was confirmed by Scanning Electron Microscope observations. Both the permeate flux and distillate conductivity were almost not varied after the studied period of time, what indicates that the used membranes maintained their nonwettability, and the negative influence of scaling was limited. The role of surface porosity on the pore wetting and influence of membrane wettability on the quality of the distillate obtained were discussed.


2017 ◽  
Vol 46 (8) ◽  
pp. 1852-1869 ◽  
Author(s):  
Luisa Helena Pinto ◽  
Carlos Cabral Cardoso ◽  
William B. Werther Jr

Purpose The purpose of this paper is to examine the role of perceived home and destination organizational culture characteristics and general satisfaction with the assignment as antecedents of expatriates’ withdrawal intentions. Design/methodology/approach Data were collected through a web survey of an international sample of expatriates with a broad representation of industries, organizations and countries of origin and destination. Findings The results indicate that home and destination organizational cultures affect expatriates’ withdrawal intentions, after controlling for demographics and national cultural differences, namely: home organizational culture has a stronger influence on withdrawal intentions from the organization, while host organizational culture affects withdrawal intentions from the assignment. Further, the relationship between host organizational culture and expatriates’ intentions to withdraw from the assignment is mediated by expatriates’ satisfaction with the assignment. Evidence was also found supporting a stronger and negative influence of the goal orientation dimension of organizational culture, thus suggesting that a collective orientation toward common business goals (i.e. solidarity) may help retain expatriates. Originality/value This study seeks to fill a gap in the literature by exploring the influence of organizational culture on expatriates’ withdrawal intentions, and the mediating role of expatriates’ satisfaction with the assignment, on that relationship.


2022 ◽  
Vol 12 (2) ◽  
pp. 81-88 ◽  
Author(s):  
Erasmus Keli Swanzy

The paper aimed to examine the influence of employees’ COVID-19 fear on their performance through intervening mechanisms such as mental wellbeing and organizational support. A total of 446 workers from the bank completed a self-report survey. Findings from regression analysis conducted with SPSS PROCESS MACRO (Model 7) revealed that employees’ COVID-19 fear did not have any direct negative influence on their performance but instead had an indirect effect on their performance via mental wellbeing (anxiety and depression). The findings also revealed that organizational support was instrumental in buffering the adverse impact of employees’ COVID-19 fear via mental wellbeing (anxiety and depression). Therefore, organizations should increase employee-supportive measures throughout this era of the COVID-19 to help reduce the adverse impact of employees’ COVID-19 fear.


Author(s):  
Viacheslav Stepanenko ◽  

The article defines the main components of the formation of the ability to combine various technological methods of laboratory research as a special competence that has to be mastered by students of the speciality “Technologies of Medical Diagnostics and Treatment” in the process of training. The combination is presented as the implementation of an action or a series of actions aimed at transforming the existing set of objects into a system that meets the requirements of the task. Its scientific and theoretical, and practical blocks are revealed. It is noted that the scientific and theoretical block of combination consists of scientific approaches and principles, complex combined research methods, and the practical block embraces various methods, techniques and laboratory research technologies. Attention is drawn to the fact that in the process of training of future laboratory assistants it is important to form their understanding that when diagnosing certain diseases of the body one cannot be limited to only one method, but it is necessary to combine various methods and research techniques. The role of synchronous and asynchronous forms of organization of training in the formation of the ability of students of the speciality “Technologies of Medical Diagnostics and Treatment” to combine various laboratory research technological methods is indicated. Examples of combining various technological methods of laboratory research are given.


2020 ◽  
pp. 40-50
Author(s):  
С.Г. Макарова ◽  
Е.И. Андрианова

Окончание. Начало в №5 за 2020 г. Вопрос о влиянии собственности государства в крупных российских компаниях на их структуру капитала остается открытым и пока не получил окончательного разрешения в литературе. Результаты работ, проведенных для российского рынка, свидетельствуют о значительной роли государственного участия в российских компаниях [5], а также о том, что российские компании с государственным участием имеют значительно более высокие значения долга в структуре капитала, чем частные [34]. В данной публикации для оценки роли государственного участия на структуру капитала российских компаний был проведен эмпирический анализ 139 публичных компаний за 2014-2018 гг. (выборка представлена государственными и частными компаниями), котирующихся на Московской бирже. В рамках проведенного исследования было выявлено, что отечественные публичные государственные компании при прочих равных условиях имеют более высокое значение долга в структуре капитала, чем частные. Кроме этого, компании с государственным участием имеют также более высокие значения коэффициента долгосрочных обязательств в сравнении с частными. Это подтверждает гипотезу о том, что деятельность государственных компаний связана с большими финансовыми рисками, чем частных, особенно в долгосрочной перспективе. В данной ситуации целесообразно ввести политику, направленную на повышение финансовой устойчивости государственных компаний, а именно, осуществлять деятельность по расширению производственных процессов за счет собственных средств и нераспределенной прибыли, а не за счет заемных средств. Также было получено положительное значимое влияние на структуру капитала компаний с государственным участием таких факторов, как размер компании, рентабельность продаж, рентабельность собственного капитала, было выявлено отрицательное влияние таких детерминант, как величина чистых активов, коэффициент оборачиваемости активов, отношение операционных расходов к EBITDA, рентабельность активов. The question of the influence of state ownership in Russian companies on their capital structure remains open for further discussion and the conclusion has not been drawn yet. The results of the work carried out for the Russian market indicate a significant role of state participation in Russian companies [4], as well as the fact that Russian companies with state participation have significantly higher values of debt in the capital structure than private ones [33]. In this publication, to assess the role of state participation in the capital structure of Russian companies, an empirical analysis of 139 public companies for 2014-2018 was carried out. (sample presented by state and private companies) listed on the Moscow Stock Exchange. n this study, it was revealed that domestic public state-owned companies, other things being equal, have a higher value of debt in the capital structure than private ones. In addition, companies with state participation also have higher values of the ratio of long-term liabilities in comparison with private ones. This confirms the hypothesis that the activities of state-owned companies are associated with greater financial risks than private ones, especially in the long term. In this situation, it is reasonable to introduce a policy aimed at increasing the financial stability of state-owned companies, namely, to carry out activities to expand production processes at the expense of their own funds and retained earnings, and not at the expense of borrowed funds. We also obtained a positive significant influence on the capital structure of companies with state participation of such factors as the size of the company, profitability of sales, return on equity, negative influence of such determinants as the value of net assets, the asset turnover ratio, the ratio of operating expenses to EBITDA, return on assets.


Author(s):  
Fitria Nuraini ◽  
Toni Anwar Mahmud

The title of the research is The Role of Parents in Shaping the Character of Children in the Globalization Era in Masigit Village, Citangkil Village, Cilegon City. In the current era of globalization, there are many influences, both positive and negative. This negative influence must be avoided because it can affect a person's habits, attitudes, and behavior. Character education is one of the important things that must be applied in the family environment. Parents must reflect good attitudes and habits in interacting in the family environment and in the community environment. This is important for fostering good attitudes and habits in children. The formulation of the problem in this study is how the role of parents in improving children's character in the era of globalization, Masigit Village, Citangkil Village, Cilegon City. What factors can influence the formation of children's character in the era of globalization, Masigit Village, Citangkil Village, Cilegon City. What efforts are made by parents in shaping children's character in the era of globalization in Masigit Village, Citangkil Village, Cilegon City. This study aims to determine the role of parents in shaping children's character in the era of globalization in Masigit Village, Citangkil Village, Cilegon City. The subjects of this study were 6 parents and 6 children in Masigit Village, Citangkil Village, Cilegon City. This research uses descriptive qualitative research methods. Data analysis in qualitative research is by doing data reduction, data presentation, and data verification. The results of this study indicate that the role of parents in Masigit Village, Citangkil Village, Cilegon City has been good in shaping children's character in the era of globalization.


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