Investigation of the lake-effect on the local thunderstorm activity around the Lake Fertő, Hungary

2020 ◽  
Author(s):  
Gayane Karapetyan ◽  
Veronika Barta
Keyword(s):  
Great Lakes ◽  
Water Temperature ◽  
Air Temperature ◽  
Positive Impact ◽  
Thunderstorm Activity ◽  
Lightning Activity ◽  
Lower Atmosphere ◽  
Distribution Maps ◽  
Negative Effect ◽  
The Impact

<p>Natural and artificial lakes are able to change the climate of their surroundings. These modifications are collectively known as lake effects and range from microscale to synoptic scale. The presence of the lake can cause negative effect on the local thunderstorm activity in summertime decreasing the convection and precipitation over lakes due to the greater stability created by the lower atmosphere and the colder surfaces of the lake [1, 2]. However, it also can have a positive impact on thundercloud generation when the temperature difference between air in 850 mb height and near earth's surface is more than 13 C causing instability in the atmosphere [3].</p><p> </p><p>The main objective of the present study is to investigate the impact of Lake Fertő (Neusiedler See, located in Hungary and Austria) on local thunderstorm activity by applying statistical analysis on meteorological and lightning data and event studies. Data of the Blitzortung lightning location network, local meteorological data (temperature, precipitation) measured at stations around the lake, water temperature measured at Fertőrákos and temperature measured at 850 mb in Vienna station were used for the analysis. The local thunderstorm activity was investigated during summertime (May - September) in 2015, 2016 and 2017. Lightning distribution maps above and around the lake for the investigated period have been determined based on the Blitzortung data.</p><p> </p><p>According to the lightning distribution maps we can not observe any positive impact of the lake on the lightning activity when water temperature was higher than the air temperature around the lake. Furthermore, we can not conclude that there is a clear negative effect of the lake on the lightning activity based on the lightning distribution maps when the air temperature is higher than the water temperature. Nevertheless, there are some months when it seems a clear border between the lightning activity measured above the lake and at the coast (e. g. in June and July 2015, June 2016). The negative effect also seems to appear in some cases of the investigated local individual thunderstorms, namely the thunderstorm activity is larger above the surrounding surface than directly above the lake. This seems to strengthen the hypothesis that "Deep convection is not often formed in summer above the lakes, and existing storms dissipate significantly when moving above the lakes due to the greater stability created by the lower atmosphere and the colder surfaces of the lake" [1].</p><p> </p><p>[1] Lyons, W. A., Some effects of Lake Michigan upon sqall lines and summertime convention. Proc. 9th Conf. Great Lakes Research, Great Lakes Res. Div. Publ. No. 15, University of Michigan, 259–273, 1966</p><p>[2] Scott, R. W., & Huff, F. A. . Impacts of the Great Lakes on Regional Climate Conditions. Journal of Great Lakes Research, 22(4), 845–863., 1996</p><p>[3] Wilson, J. W. : Effect of Lake Ontario on precipitation. Mon. Wea. Rev. 105, 207–214., 1977</p>

The Impact of Employee Empathy on Brand Trust in Organizational Complaint Response Emails: A Closer Look at Linguistic Realization

2021 ◽  
pp. 232948842110323
Author(s):  
Rebecca Van Herck ◽  
Sofie Decock ◽  
Bernard De Clerck ◽  
Liselot Hudders
Keyword(s):  
Positive Impact ◽  
Brand Trust ◽  
Mediating Effects ◽  
Customer Complaints ◽  
Moderation Effects ◽  
Complaint Handling ◽  
Negative Effect ◽  
Handling Quality ◽  
The Impact

This study investigates the effect of linguistic realizations of employee empathy (LREE) on brand trust in email responses to customer complaints. We explore possible mediating effects of perceived empathy and perceived complaint handling quality and we look into moderation effects of compensation (Study 1) or customer’s acceptance of blame (Study 2). Our aim is to find out if LREE have a negative or positive impact on the customer in cases of partial refunds, either because LREE are being perceived as insincere or as genuine expressions of concern. The results of two experiments show that LREE positively influence brand trust through higher perceived empathy and perceived complaint handling quality. However, the expected negative effect is not found, as LREE are more effective in a low versus high compensation condition. The effectiveness itself is not influenced by the acceptance of blame when a partial refund is offered.

Every coin has two sides: the impact of time pressure on employees’ knowledge hiding

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xianchun Zhang ◽  
Zhu Yao ◽  
Wan Qunchao ◽  
Fu-Sheng Tsai
Keyword(s):  
Time Pressure ◽  
Negative Impact ◽  
Positive Impact ◽  
Job Security ◽  
Statistical Technique ◽  
Content Type ◽  
Individual Knowledge ◽  
Negative Effect ◽  
Knowledge Hiding ◽  
The Impact

Purpose Time pressure is the most common kind of work pressure that employees face in the workplace; the existing research results on the effect of time pressure are highly controversial (positive, negative, inverted U-shaped). Especially in the era of knowledge economy, there remains a research gap in the impact of time pressure on individual knowledge hiding. The purpose of this paper is to explore the impact of different time pressure (challenge and hindrance) on knowledge hiding and to explain why there is controversy about the effect of time pressure in the academics. Design/methodology/approach The authors collected two waves of data and surveyed 341 R&D employees in China. Moreover, they used regression analysis, bootstrapping and Johnson–Neyman statistical technique to verify research hypotheses. Findings The results show that challenge time pressure (CTP) has a significant negative effect on knowledge hiding, whereas hindrance time pressure (HTP) has a significant positive effect on knowledge hiding; job security mediates the relationship between time pressure and knowledge hiding; temporal leadership strengthen the positive impact of CTP on job security; temporal leadership can mitigate the negative impact of HTP on job security. Originality/value The findings not only respond to the academic debate about the effect of time pressure and point out the reasons for the controversy but also enhance the scholars’ attention and understanding of the internal mechanism between time pressure and knowledge hiding.

scholarly journals Does Customer Demotion Jeopardize Loyalty?

2009 ◽  
Vol 73 (3) ◽  
pp. 69-85 ◽  
Author(s):  
Tillmann Wagner ◽  
Thorsten Hennig-Thurau ◽  
Thomas Rudolph
Keyword(s):  
Negative Impact ◽  
Positive Impact ◽  
Loyalty Programs ◽  
Negative Consequences ◽  
Managerial Decision ◽  
Design Variables ◽  
Negative Effect ◽  
Loyalty Intentions ◽  
The Impact ◽  
Scenario Study

Hierarchical loyalty programs award elevated customer status (e.g., “elite membership”) to consumers who meet a predefined spending level. However, if a customer subsequently falls short of the required spending level, firms commonly revoke that status. The authors investigate the impact of such customer demotion on loyalty intentions toward the firm. Building on prospect theory and emotions theory, the authors hypothesize that changes in customer status have an asymmetric negative effect, such that the negative impact of customer demotion is stronger than the positive impact of status increases. An experimental scenario study provides evidence that loyalty intentions are indeed lower for demoted customers than for those who have never been awarded a preferred status, meaning that hierarchical loyalty programs can drive otherwise loyal customers away from a firm. A field study using proprietary sales data from a different industry context demonstrates the robustness of the negative impact of customer demotion. The authors test the extent to which design variables of hierarchical loyalty programs may attenuate the negative consequences of status demotions with a second experimental scenario study and present an analytical model that links status demotion to customer equity to aid managerial decision making.

scholarly journals THE IMPACT OF SOCIAL MEDIA USAGE AND SMARTPHONE ADDICTION ON YOUNGS’/ADOLESCENTS’ CAREER FUTURES: A STUDY AT HIGH SCHOOLS

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Fikret SÖZBİLİR
Keyword(s):  
Social Media ◽  
Positive Impact ◽  
The Other ◽  
Smartphone Addiction ◽  
Career Adaptability ◽  
Media Usage ◽  
Negative Effect ◽  
Future Perceptions ◽  
The Impact ◽  
Career Future

This study aims to determine the impact of social media usage and smartphone addiction of young people, who will be future employees of organizations, on their career future perceptions. In addition, it is aimed to provide recommendations, based on results regarding positive or negative effect of social media and smartphone usage on the formation of the perception of career future. In this empirical study, the data on perceptions concerning social media usage, smartphone addiction, career adaptability, and career futures were gathered by means of a questionnaire from 6259 participating students in Artvin in Turkey. Data were subjected to analysis with SPSS 24.0 software and presented in tables. The findings showed that social media usage has a significant and positive impact on career adaptability and career futures. Also, smartphone addiction has a significant and positive impact on career futures on the other hand it has a negative and significant impact on career adaptability.

scholarly journals A Cognitive Approach to Diversity: Investigating the Impact of Board of Directors’ Educational and Functional Heterogeneity on Innovation Performance

2021 ◽  
Vol 16 (2) ◽  
pp. 1
Author(s):  
Ramzi Belkacemi ◽  
Kamal Bouzinab ◽  
Andrew Papadopoulos
Keyword(s):  
Positive Impact ◽  
Deep Level ◽  
Organizational Outcomes ◽  
Innovation Performance ◽  
Cognitive Approach ◽  
Academic World ◽  
Negative Effect ◽  
Potential Impact ◽  
The Impact ◽  
Educational Diversity

Boards’ diversity has been studied mainly through the prism of ethics, which translated into a focus on characteristics such as gender and ethnicity. However, when the goal is to explain organizational outcomes, the cognitive approach seems more pertinent. Thus, rooted in a resource dependency perspective, this paper investigates the potential impact of directors’ deep level diversity (functional and educational diversity) on innovation performance based on an international sample of 97 firms for a total of 1027 directors. The findings highlight the negative effect of functional diversity (measured by diversity in the sectors of expertise), and on the opposite, the positive impact of educational diversity (measured by diversity in the fields of study) on innovation performance. This study also shows that the environment in which organizations evolve, both at the internal and external level, is crucial when it comes to innovation performance. These results are robust in that they remain consistent after addressing some potential endogeneity issues and have critical implications for both the professional and academic world.

scholarly journals Quantifying the impact of release operations and weather conditions on the flow and temperature dynamics in the cascade-reservoir system

2018 ◽  
Vol 246 ◽  
pp. 01027
Author(s):  
Gang Chen ◽  
Yue Zhai ◽  
Hui Fan ◽  
Xing Fang ◽  
Chuanhai Wang
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Cold Water ◽  
Temperature Drop ◽  
Weather Conditions ◽  
Density Currents ◽  
Three Dimensional Model ◽  
Bottom Water Temperature ◽  
Reservoir System ◽  
The Impact

The objective of this study was to investigate the flow dynamics and temperature characteristics under different reservoir operation scenarios and weather conditions in the river-reservoir system, which can be used to set scientific guidelines for river management and conservation planning strategies. The calibrated three-dimensional model provided simulated unsteady water surface elevation, temperature, velocity and discharge at different layers (depths) in different locations. A series of operation scenarios were modeled to understand and quantify formation, propagation, and disappearance of density currents that are resulted from combinations of daily repeated large release (DRLR) of different durations and solar heating. DRLRs (140 m3/s) with longer durations pushed the bottom cold water further downstream and maintained the bottom water temperature cooler. Variations of weather conditions (e.g., drops of air temperature and solar radiation) directly controled variations of bottom-layer water temperature. The daily drop rate of bottom temperature was related to the rate and duration of air temperature drop. Under the practice for the water turbines running at downstream, it clearly showed the shocking withdrawal and stopping effect from the downstream operation. The velocity for the whole cross-section were almost increased with same magnitude of about 0.1 m/s at GOUS and JML.

Structural Reforms and Technical Efficiency in the Indian Electricity Distribution Sector

2020 ◽  
Vol 37 (02) ◽  
pp. 2050004
Author(s):  
Sudhir Mahadeo Bobde ◽  
Makoto Tanaka
Keyword(s):  
Technical Efficiency ◽  
Power Distribution ◽  
Positive Impact ◽  
Bootstrap Method ◽  
State Level ◽  
Electricity Distribution ◽  
Negative Effect ◽  
Dea Efficiency ◽  
Distribution Sector ◽  
The Impact

This paper examines the impact of electricity reforms on the technical efficiency of the power distribution sector in India, using state-level panel data for the period 1995–2012. We use a two-stage data envelopment analysis (DEA), where DEA efficiency estimates obtained in the first stage are regressed on policy reform variables and some external environmental variables in the second-stage analysis. The bootstrap method is applied to analyze the statistical properties of the nonparametric estimates. First, we find that the partially unbundled structure of the electricity industry, where generation and distribution sectors are integrated but the transmission sector is separate, had significant positive impact on the technical efficiency of the distribution sector. Second, our result indicates that the legislation of electricity reforms had a significantly negative effect on technical efficiency. Third, we find that small-sized electricity distribution sectors/states experienced significant positive gain in technical efficiency when interacted with partial or full unbundling.

Factors of Macroeconomic Dynamics in the Transition to the Information Economy

2019 ◽  
Vol 7 (1) ◽  
pp. 25-30
Author(s):  
Леонид Басовский ◽  
Leonid Basovskiy ◽  
Елена Басовская ◽  
Elena Basovskaya
Keyword(s):  
Economic Growth ◽  
Factor Analysis ◽  
Growth Rates ◽  
Positive Impact ◽  
Principal Component ◽  
Developed Countries ◽  
Entire Period ◽  
Annual Growth Rate ◽  
Negative Effect ◽  
The Impact

The study was made of the relationship between GDP growth rates and individual components of its final use by combining factor analysis using the principal component method and regression analysis. The period from 1955 to 1980 was studied using data on the average annual growth rate of components over fiveyear periods in the countries of the non-socialist world. The growth rates of the various components of the use of GDP at different stages as the fourth technical and economic structure of the fourth dominates and the development of crisis phenomena in the economy has had a variable impact on economic growth. During the crisis period, the impact of the growth of all components of using GDP on economic growth has dropped sharply. The greatest role in this period was played by the growth of current expenditures of the state. Comparison of the structure of the use of GDP using factor analysis by the method of principal components was carried out by the average annual values for the period from 1950 to 1980. As the development crisis approaches, as the models show, the influence of factors of the structure of using GDP on economic growth decreases. During the entire period, high levels of government spending had a negative effect on economic growth. The impact of exports and imports was positive for the entire period studied. Overcoming the crisis in the economies of developed countries led to a transition to a positive impact of investment on economic growth.

The Impact of Financial Inclusion on Poverty Reduction

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Huong Thi Thanh Tran ◽  
Ha Thi Thu Le
Keyword(s):  
Poverty Reduction ◽  
Negative Impact ◽  
Positive Impact ◽  
Trade Openness ◽  
Principal Component ◽  
Financial Inclusion ◽  
Factors Affecting ◽  
Global Issue ◽  
Negative Effect ◽  
The Impact

Abstract Poverty is a global issue and a lot of attention and efforts of the international community have been made to deal with this problem. Especially in the context of the COVID-19 pandemic, when a part of the population could fall into poverty due to rising unemployment and income deduction, identifying the factors affecting poverty becomes particularly important. Financial inclusion has been recognized as one important factor affecting poverty reduction. This research is conducted to investigate the impact of financial inclusion and other control variables on poverty reduction. The study employs Principal Component Analysis (PCA) to build a financial inclusion index. Using 2SLS and the GMM regressions for a panel data of 29 European countries during the period from 2011 to 2017, the results show that financial inclusion has a negative impact on poverty at all three poverty lines of USD1.9, 3.2, and 5.5 per day. The proportion of the population aged 15–64 and the ratio of service employment to the total number of employment also have a negative effect on all three levels of POV1.9, POV3.2, and POV5.5. In contrast, GDP per capita, trade openness and the proportion of the population aged from 25 with at least secondary school education have a positive impact on poverty at three levels of poverty. The results confirm that financial inclusion plays an important role in reducing poverty. The study provides a number of recommendations to governments to promote financial inclusion and reduce poverty in the countries.

“Carne Fraca”

2019 ◽  
Vol 122 (2) ◽  
pp. 722-735
Author(s):  
Filipe Quevedo-Silva ◽  
Otavio Freire ◽  
Caroline Pauletto Spanhol-Finocchio
Keyword(s):  
Risk Perception ◽  
Perceived Risk ◽  
Purchase Intention ◽  
Positive Impact ◽  
Risk Attitude ◽  
Content Type ◽  
National Crisis ◽  
Cast Doubt ◽  
Negative Effect ◽  
The Impact

Purpose Over the last few years, several events have reduced the consumer confidence in relation to food safety. Recently, one event that triggered discussions and concern among consumers in Brazil was the “Carne Fraca” operation which cast doubt on the quality and safety of Brazilian beef. The purpose of this paper is to analyse the impact of the news regarding a national crisis in beef production on consumers’ assessment and purchase intention of beef. Design/methodology/approach A quantitative study was conducted involving 417 respondents in Brazil. The procedure for the analysis consisted of the investigation of two models, incorporating mediation and moderation effects. Findings The results show that news on the crisis had a positive impact on risk perception. This impact was negatively moderated by consumer scepticism. Risk perception had a negative effect on the assessment of beef and purchase intention. These effects were negatively affected by risk attitude. The news directly affected consumers’ assessment of beef and indirectly affected purchase intention through mediation of perceived risk. Originality/value This study proposes two models, analysing the effect of the media on consumers’ assessment of beef and purchase intention, mediated by risk perception. Furthermore, the models analyse the moderating effects of scepticism and consumers’ risk attitude.

Sign in / Sign up

Export Citation Format

Share Document