scholarly journals Analysis and Evaluation of Market and Financial Risks in Small and Medium-Sized Enterprises 

2018 ◽  
Vol 20 (2) ◽  
pp. 16-22
Author(s):  
Maria Hudakova ◽  
Jan Dvorsky ◽  
Katarina Buganova ◽  
Ludmila Kozubikova
Keyword(s):  
Interval Estimation ◽  
Mean Value ◽  
Mathematical Statistics ◽  
Statistical Characteristics ◽  
Financial Risks ◽  
Entire Interval ◽  
Interval Estimates ◽  
Analysis And Evaluation ◽  
The Mean ◽  
The Impact

The essence of the article is based on the collected and processed data from the survey to analyze, assess and evaluate the impact of the factor, which is the number of employees, on the market and financial risks, identified by managers of the SMEs in the Zilina region of Slovakia. The analysis of market and financial risks is carried out through the analysis of the selected statistical characteristics, using the point and interval estimates and methods of mathematical statistics. Interval estimation enables to determine not only the best estimate, but the entire interval with a certain probability of possible estimates of the mean value of the market and financial risks of a basic file, since the managers of an enterprise are more interested in intervals than in a point value. Results of the survey showed that the number of employees has an impact on the mean value of the market and financial risks of the SMEs in the Zilina region and therefore it is not possible to underestimate it.

scholarly journals The Quantitative Assessment Of Market Risk In Small And Medium - Sized Enterprise In The Slovak Republic

2016 ◽  
Vol 6 (2) ◽  
pp. 214-221
Author(s):  
Mária Hudáková ◽  
Ján Dvorský
Keyword(s):  
Risk Analysis ◽  
Quantitative Assessment ◽  
Preventive Measures ◽  
Slovak Republic ◽  
Market Risk ◽  
Mathematical Statistics ◽  
Statistical Characteristics ◽  
Interval Estimates ◽  
Market Risks ◽  
The Impact

Small and medium-sized enterprises (SMEs) in Slovakia do not pay sufficient attention to market risks, they do not form the prerequisites, or preventive measures of the risks assessed, which would prevent the problem. The essence of the article is based on the collected and processed data from the survey to analyze, assess and evaluate the impact of the factor, which is the number of employees to evaluate the market risk identified by managers of SMEs in the Žilina region of Slovakia. The analysis of market risk is carried out through the analysis of the selected statistical characteristics using the point and interval estimates and methods of mathematical statistics. The results of the survey showed that the number of employees has an impact on the amount of the value of the market risk of SMEs in the Žilina region and therefore it is not possible to underestimate it.   Keywords: risk, analysis, assessment, evaluation, market, small and medium-sized enterprise.

scholarly journals Perturbation analysis of a variable M/M/1 queue: a probabilistic approach

2006 ◽  
Vol 38 (01) ◽  
pp. 263-283 ◽  
Author(s):  
Nelson Antunes ◽  
Christine Fricker ◽  
Fabrice Guillemin ◽  
Philippe Robert
Keyword(s):  
Power Series ◽  
Busy Period ◽  
Stationary Process ◽  
Probabilistic Approach ◽  
Power Series Expansion ◽  
Mean Value ◽  
Service Rate ◽  
The Mean ◽  
The Impact ◽  
Period Duration

In this paper, motivated by the problem of the coexistence on transmission links of telecommunications networks of elastic and unresponsive traffic, we study the impact on the busy period of an M/M/1 queue of a small perturbation in the service rate. The perturbation depends upon an independent stationary process (X(t)) and is quantified by means of a parameter ε ≪ 1. We specifically compute the two first terms of the power series expansion in ε of the mean value of the busy period duration. This allows us to study the validity of the reduced service rate approximation, which consists in comparing the perturbed M/M/1 queue with the M/M/1 queue whose service rate is constant and equal to the mean value of the perturbation. For the first term of the expansion, the two systems are equivalent. For the second term, the situation is more complex and it is shown that the correlations of the environment process (X(t)) play a key role.

scholarly journals THE LUCK IN “TALENT VERSUS LUCK” MODELING

2020 ◽  
Vol 23 (03) ◽  
pp. 2050007
Author(s):  
SEAN ELVIDGE
Keyword(s):  
Mean Value ◽  
Maximum Amount ◽  
Random Numbers ◽  
Individual Parameter ◽  
Input Parameters ◽  
The Mean ◽  
Model Variability ◽  
The Impact ◽  
The Relationship

This paper further investigates the Talent versus Luck (TvL) model described by [Pluchino et al. Talent versus luck: The role of randomness in success and failure, Adv. Complex Syst. 21 (2018) 1850014] which models the relationship between ‘talent’ and ‘luck’ on the impact of an individuals career. It is shown that the model is very sensitive to both random sampling and the choice of value for the input parameters. Running the model repeatedly with the same set of input parameters gives a range of output values of over 50% of the mean value. The sensitivity of the inputs of the model is analyzed using a variance-based approach based upon generating Sobol sequences of quasi-random numbers. When using the model to look at the talent associated with an individual who has the maximum capital over a model run it has been shown that the choice for the standard deviation of the talent distribution contributes to 67% of the model variability. When investigating the maximum amount of capital returned by the model the probability of a lucky event at any given epoch has the largest impact on the model, almost three times more than any other individual parameter. Consequently, during the analysis of the model results one must keep in mind the impact that only small changes in the input parameters can have on the model output.

​Impact of Extreme Hot Environmental Temperature Period on Marker Enzymes of Carbohydrate Metabolism in Non-descript Sheep from Arid Tracts of Rajasthan

2021 ◽  
Author(s):  
Anandita Srivastava ◽  
Nalini Kataria
Keyword(s):  
Carbohydrate Metabolism ◽  
Environmental Temperature ◽  
Age Groups ◽  
Extreme Temperature ◽  
Mean Value ◽  
Marker Enzymes ◽  
Mean Values ◽  
The Mean ◽  
The Impact ◽  
Enzymes Of Carbohydrate Metabolism

Background: The present investigation was envisaged to find out the impact of extreme hot environmental temperature period (ETP) on marker enzymes of carbohydrate metabolism in male and female non-descript sheep of various age groups i.e. 4 to 13 months from arid tracts of Rajasthan. Glucose-6-phosphate dehydrogenase (G-6-PDH) and malate dehydrogenase (MDH) marker enzymes of carbohydrate metabolism were considered for study. Methods: During the period October 2016-June 2017 blood samples were collected to harvest sera for spectrophotometric method from 240 healthy animals selected from private slaughter house during moderate and extreme hot environmental temperature periods (ETPs). The mean values of markers attained during moderate ETP were reckoned as the control. It was 10.00 ± 0.10 UL-1 and 42.00±1.00 respectively. Conclusion: The mean value of MDH was significantly (p≤0.05) higher while G-6-PDH significantly (p≤0.05) lowers during extreme hot temperature in comparison to moderate period. Therefore, it could be concluded that variations in enzyme markers were associated with changes in environmental temperatures. Probably ETP were able to produce a profound effect on carbohydrate metabolism in sheep. Therfore it can be suggested that during the period of extreme temperature balanced ration must be provided to the animal along with proper management to decrease the severity of temperature impact.

KUALITAS HIDUP REMAJA YANG MENGALAMI DISMENORE DI SMK NEGERI 2 SUMEDANG

2018 ◽  
Vol 4 (2) ◽  
pp. 129
Author(s):  
Nadya Puspita Dewi ◽  
Tetti Solehati ◽  
Nur Oktavia Hidayati
Keyword(s):  
Quality Of Life ◽  
Sampling Technique ◽  
Mean Value ◽  
Social Dimension ◽  
Validity And Reliability ◽  
School Activities ◽  
Emotional Dimension ◽  
The Mean ◽  
The Impact

Dysmenorrhea is a pain before or during the menstrual period. The impact of dysmenorrhea are the disruption on physical function, emotional, social and school activities and disruption of quality of life. The study purpose is to detect the quality of life of adolescents with dysmenorrhea.The research method was a quantitative descriptive with total sampling technique to 195 students which selected using dysmenorrhea screening. The data were collected using the pediatric quality of life 4.0 generic module (PedsQL) teens report in Indonesian version which the validity and reliability have been tested. Analysis of data has been done to find out the mean value in each dimension and frequency distribution. The results showed that the mean value of the quality of life of adolescents with dysmenorrhea in general was 62,04 ± 8,15 and 51,8% was in the low. The mean value in physical dimension was 49,36 ± 9,19, emotional dimension was 57,62 ± 13,16, social dimension was 86,38 ± 13,28, and in the school dimension was 62,41 ± 14,77. The quality of life in high categories were in the emotional dimension (60,0%), social dimension (64,1%), and school dimension (60,5%). Meanwhile, the quality of life in low category was in the physical dimension (57,4%). It showed that the quality of life of adolescents with dysmenorrhea in SMK Negeri 2 Sumedang were low. It was recommended to the school and the health office in Sumedang district to provide the reproductive health education, specifically about the prevention and the treatment of dysmenorrhea on adolescents.  

Mindfulness and insomnia at pregnancy

2016 ◽  
Vol 33 (S1) ◽  
pp. s269-s269
Author(s):  
M. Marques ◽  
A.T. Pereira ◽  
E. Bento ◽  
S. Xavier ◽  
J. Azevedo ◽  
...  
Keyword(s):  
Anxiety Disorders ◽  
Pregnant Women ◽  
Mean Value ◽  
Inner Experience ◽  
The Mean ◽  
Competing Interest ◽  
Acting With Awareness ◽  
The Impact ◽  
Insomnia Symptoms ◽  
In Pregnancy

IntroductionThe impact of mindfulness in improving insomnia symptoms is documented in different samples (e.g. anxiety disorders; insomnia samples) and mindfulness based programs for pregnancy refer the association between mindfulness development and the reduction of insomnia symptoms/improvement of sleep.ObjectiveTo explore differences in the Facets Mindfulness Questionnaire-10 (FMQ-10; Azevedo et at. 2015), between sleep groups, in Portuguese pregnant women.MethodsFour hundred and nineteen pregnant women (mean age: 32.51 ± 4.759; weeks of gestation: 17.32 ± 4.803) answered the Facets Mindfulness Questionnaire-10 and the Insomnia Assessment Scale (IAS, Marques et al., 2015). Three sleep groups were created considering all the IAS items: good sleepers (no insomnia symptoms; no associated daily impairment); insomnia symptoms groups (one/more insomnia symptoms; no associated daily impairment; exclusion of other conditions/disorders explaining the symptoms); insomniacs (one/more insomnia symptoms; one/more daily associated impairment; exclusion of other conditions/disorders explaining the symptoms).ResultsThere were significant differences in the total FMQ-10 score, the F1/Nonjudging of inner experience and the F2/acting with awareness, between sleep groups [respectively, F (2.402) = 6,933; P = 0.001; F (2.406) = 10.243; P = 0.001; F (2.406) = 37.431; P = 0.002]. Tukey tests indicated that the mean total FMQ-10 and F1/Nonjudging of inner experience scores of good sleepers and insomnia symptoms group were significantly higher than of the insomniacs. The mean value of F2/acting with awareness in the good sleepers was significantly higher than of the insomniacs.ConclusionsIt seems important to develop mindfulness to improve sleep in pregnancy or reduce the impact of insomnia symptoms (common at pregnancy).Disclosure of interestThe authors have not supplied their declaration of competing interest.

A Study of Ecological Water Use Based on the Improved Tennant Method

2010 ◽  
Vol 113-116 ◽  
pp. 1504-1508 ◽  
Author(s):  
Jing Huan Tian ◽  
Ling Yu ◽  
Zhi Hong Zheng
Keyword(s):  
Water Use ◽  
Traditional Method ◽  
Extreme Values ◽  
Mean Value ◽  
Improved Method ◽  
Existing Problems ◽  
Runoff Series ◽  
Tennant Method ◽  
The Mean ◽  
The Impact

To solve the existing problems arose in the Tennant method for estimating ecological water use in river course, a new methodology is proposed to replace the mean value by the median of runoff series in the Tenna nt formula. The motive is to eliminate the impact of some extreme values. Given runoff series of 47 years in Jiaokou reservoir of Zhangxi River, the traditional and the improved method were respectively applied to calculate the ecological water consumption in the river. The results show that the improved Tennant method is more reasonably than the traditional method.

Non-Linear Model of Rubber Bearings under Random Excitation

2012 ◽  
Vol 452-453 ◽  
pp. 602-606
Author(s):  
Hai Yan Jing ◽  
Yan Ping Zheng ◽  
Ming Xia Fang
Keyword(s):  
Past Research ◽  
Random Excitation ◽  
Mean Value ◽  
Statistical Characteristics ◽  
The Past ◽  
Non Linear ◽  
The Mean ◽  
Rubber Bearings ◽  
Force Displacement ◽  
Sinusoidal Excitation

Through dynamics test and theoretical analysis about rubber bearings in Auto body’s sub-frame, and the past research results of sinusoidal excitation, a hysteretic non-linear mathematical model of the rubber bearings is established under the condition of random excitation. The model shows that the hysteretic renewed force of the rubber bearings under random excitation can be expressed with the mean value and variance of random excitation’s statistical characteristics and speed. Finally curves of the hysteretic renewed force - displacement are reconstructed with the model built, which match the test’s results well.

scholarly journals Significant Effect of Project Based Learning Video on Students’ Listening Skill in Pandemic Situation

2021 ◽  
Vol 5 (2) ◽  
pp. 425
Author(s):  
Ni Wayan Febiyanti ◽  
Putu Kerti Nitiasih ◽  
Luh Gd Rahayu Budiarta ◽  
Ni Luh Putu Era Adnyayanti
Keyword(s):  
Standard Deviation ◽  
Quantitative Research ◽  
Listening Comprehension ◽  
Mean Value ◽  
Project Based Learning ◽  
School Students ◽  
Innovative Teaching ◽  
Listening Skill ◽  
The Mean ◽  
The Impact

Listening is one of the most important language skills to be learned by students. However, it is very difficult for teachers to teach these skills in learning during the Covid-19 pandemic. Teachers need innovative teaching techniques, one of which is using video media. This study aims to investigate the impact of using project-based learning videos on students' listening comprehension skills. The population in this study involved 4th grade elementary school students. The sample in this study used 40 grade 4 students from one intact class that were selected with a specific purpose. This research includes quantitative research with one group pretest-posttest design. The data collection instrument in this study used a listening comprehension test and a listening comprehension assessment rubric. The data collected were analyzed using descriptive and inferential statistical analysis. From the results of the study, it was found that the mean value of the group at the posttest was 86.85 which was greater than the mean value at the pretest, which was 75.75. The standard deviation on the pretest also shows a value of 5,678 and the standard deviation on the posttest is 3,180. From the results of statistical inferential analysis shows that the value of Sig. (2-tailed) is .000. and lower than Sig. levels (.05). Therefore, it can be concluded that there is a significant impact on the use of project-based learning videos on students' listening comprehension during the covid-19 pandemic.

scholarly journals The Impact of Strengthening Exercise on Dynamic Balance in Patients with Knee Osteoarthritis

2021 ◽  
Vol 15 (10) ◽  
pp. 3429-3431
Author(s):  
Shenbaga Subramanian Sundaram ◽  
Makesh Babu Subramanian ◽  
Riziq Allah Mustafa Gaowgeh ◽  
Mikhled Falah Maayah ◽  
Ziyad Neamatallah ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Dynamic Balance ◽  
Mean Value ◽  
Control Group ◽  
P Value ◽  
Strengthening Exercise ◽  
Significant Difference ◽  
The Mean ◽  
The Impact ◽  
Experimental Group

Background: Knee osteoarthritis is characterised clinically by usage-related pain and/or functional limitation. OA that is associated with physical dysfunction and decline in health-related quality of life caused the main disability worldwide and is expected to increase due to aging and obesity rates and further load on the population and health system. The strengthening exercises that normally used is knee flexion and extensions, isometric quadriceps exercise, isometric hamstring exercise, and sit to stand to improve the balance. Objectives: is to find out the impact of Strengthening exercise on Balance in patients with knee Osteoarthritis Study Design: Quasi experimental study Methods: Fifty-six (n=56) of knee OA patients were involved in this study by judgemental sampling design. Researcher will first demonstrate and explain the Y-balance tools testing procedure based on Plisky and colleagues study. Participants are given to practice six trials before the formal testing, stated that SEBT have a significant learning effect and found that the reaching distances reached the longest distance after six trials and then will be constant. Results: Independent t-test shows significant difference in only anterior direction. In the experimental group the mean value is 69.83 with a SD of 11.62 while in the control group the mean value is 63.51 with a SD of 11.36; p-value of .045 and t-value of 2.056. In postero-lateral directions result shows there is no significant difference, experimental group the mean value is 91.10 with a SD of 9.74 while in control group mean value is 90.88 with SD value of 12.68; p-value of .947 and t-value of .067. Result of postero-medial shows no significant difference too, in experimental group the mean value of 95.16 with SD of 10.92 while in control group the mean value is 93.40 with SD of 8.20; p=value of .501 and t-value of .678. Conclusion: This study has proven strengthening exercise using YBT improved only anterior direction of YBT but no significant difference in postero-lateral and postero-medial direction. Key Words: Knee Osteoarthritis, Strengthening exercise, Dynamic Balance, Star excursion test

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