scholarly journals POPULASI DAN SERANGAN LIRIOMYZA SATIVAE (BLANCHARD) (DIPTERA: AGROMYZIDAE), SERTA POTENSI PARASITOIDNYA PADA PERTANAMAN KETIMUN

2005 ◽  
Vol 5 (2) ◽  
pp. 73-81
Author(s):  
Siti Herlinda ◽  
Leny Puspa Rosalina ◽  
Yulia Pujiastuti ◽  
Erizal Sodikin ◽  
Aunu Rauf
Keyword(s):  
Regression Coefficient ◽  
Adult Population ◽  
Larval Abundance ◽  
Liriomyza Sativae ◽  
Leaf Mining ◽  
The Relationship

Population and damage by Liriomyza sativa (Blanchard) (Diptera : Agromyzidae) and its parasitoid potential on cucumber fields. The objectives of this research were to figure out adult population of L. sativae and the damage caused by the larvae on cucumber leaves, to analyze the relationship between adult population and the number of leaf mining tunnel caused by L. sativae larvae, and to analyze the relationship betweeen the larval abundance and its parasitoids. The highest adult population (7.60 adults per trap) of L. sativae was found on 5 weeks after planting (WAP) and the lowest (3.20 adults per trap) was on 2 WAP. The highest damage intensity was found on 3 weeks after planting, amounted to 36.89% while the lowest was found on 6 weeks after planting, amounted to 12.12%. The regression coefficient showed that each adult of L. sativae caused one leaf mining tunnel. The  higher  the  number of L. sativae  larvae, the  more  the  mining tunnels occured (R = 80.8%). The higher the number of L. sativae larvae in cucumber leaves, the more the larvae parasitized (R = 86.8%). Parasitoids found were Diglyphus sp. (Hymenoptera : Eulophidae) and Neochrysocharis sp. (Hymenoptera : Eulophidae). The highest apparent parasitism was found on 5 weeks after planting, amounted to 41.9%.

Income or Culture? Examining the Determinants of Subjective Wellbeing in an International Sample

2019 ◽  
Author(s):  
Siddharth Garg
Keyword(s):  
Online Survey ◽  
Subjective Wellbeing ◽  
Regression Coefficient ◽  
Marginal Utility ◽  
Economic Class ◽  
Income Groups ◽  
Significant Difference ◽  
The World ◽  
Diminishing Marginal Utility ◽  
The Relationship

Objective: The aim of this paper was to examine the relationship between income, subjective wellbeing, and culture among people from a higher socio-economic class across the world. Rationale: Ed Diener proposed the law of diminishing marginal utility as an explanation for differences in subjective wellbeing among different income groups across different countries (Diener, Ng, & Tov, Balance in life and declining marginal utility of diverse resources, 2009). Thus, people with higher incomes would experience less subjective wellbeing due to income, and culture should emerge as a significant predictor. Method: Data from this study came from another study (https://siddharthgargblog.wordpress.com/2019/07/14/love-for-money/). I used an online survey to collect data on annual income in US dollars, subjective wellbeing (WHO-5), and country of residence (Indicator of Culture). 96 responses (Indians = 24, Foreigners = 72) were entered in IBM SPSS and a regression analysis was conducted. The raw dataset used in this study can be found at https://doi.org/10.6084/m9.figshare.8869040.v1Results: ANOVA showed a significant difference (p < 0.05) between Indians and foreigners on levels of subjective wellbeing. Linear regression shows the regression coefficient of culture to be significant (Beta = -.254, p = .014) but the regression coefficient of income was not found to be significant. The overall model was found to explain 8.2% of the variance in wellbeing.Conclusion: The sample of this study is too small to make any kind of generalization; it does lend a little bit of support to the idea of diminishing marginal utility of income on subjective wellbeing and provides a rationale for further research.

scholarly journals Be Aware of Burnout! The Role of Changes in Academic Burnout in Problematic Facebook Usage among University Students

2021 ◽  
Vol 18 (15) ◽  
pp. 8055
Author(s):  
Katarzyna Tomaszek ◽  
Agnieszka Muchacka-Cymerman
Keyword(s):  
Regression Coefficient ◽  
Population Sample ◽  
Cross Sectional ◽  
Academic Burnout ◽  
Independent Variables ◽  
Social Motive ◽  
Explained Variance ◽  
The Impact ◽  
The Relationship

Most previous research has examined the relationship between FB addiction and burnout level by conducting cross-sectional studies. Little is known about the impact of changes in burnout on FB addiction in an educational context. Through a two-way longitudinal survey of a student population sample (N = 115), this study examined the influence of changes in academic burnout over time and FB motives and importance (measured at the beginning and the end of the semester) on FB intrusion measured at the end of the academic semester. The findings show that: (1) increases in cynicism and in FB motives and importance significantly predicted time2 FB intrusion; (2) FB importance enhanced the prediction power of changes in the academic burnout total score, exhaustion and personal inefficacy, and reduced the regression coefficient of changes in cynicism; (3) the interaction effects between FB social motive use and changes in academic burnout, as well as between FB importance and personal inefficacy and exhaustion, accounted for a significant change in the explained variance of time2 FB intrusion. About 20–30% of the variance in time2 FB intrusion was explained by all the examined variables and by the interactions between them. The results suggest that changes in academic burnout and FB motives and importance are suppressive variables, as including these variables in the regression model all together changed the significance of the relationship between independent variables and FB intrusion.

scholarly journals Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review

2021 ◽  
Vol 18 (14) ◽  
pp. 7669
Author(s):  
Ali Mohammed Alzahrani ◽  
Msaad Alzhrani ◽  
Saeed Nasser Alshahrani ◽  
Wael Alghamdi ◽  
Mazen Alqahtani ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adult Population ◽  
Knee Valgus ◽  
Journal Articles ◽  
Hip Muscle ◽  
Hip Abductor ◽  
Hip Muscles ◽  
Analysis System ◽  
The Relationship ◽  
External Rotator

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

scholarly journals The effect of language on performance: do gendered languages fail women in maths?

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Tamar Kricheli-Katz ◽  
Tali Regev
Keyword(s):  
Language Proficiency ◽  
Gender Inequality ◽  
Gender Gap ◽  
Adult Population ◽  
Ongoing Debate ◽  
The Feminine ◽  
Hebrew Language ◽  
The Relationship ◽  
Large Representative ◽  
And Task

AbstractResearch suggests that gendered languages are associated with gender inequality. However, as languages are embedded in cultures, evidence for causal effects are harder to provide. We contribute to this ongoing debate by exploring the relationship between gendered languages and the gender gap in mathematics achievements. We provide evidence for causality by exploiting the prominent (but not exclusive) practice in gendered languages of using masculine generics to address women. In an experiment on a large representative sample of the Hebrew-speaking adult population in Israel, we show that addressing women in the feminine, compared to addressing them in the masculine, reduces the gender gap in mathematics achievements by a third. These effects are stronger among participants who acquired the Hebrew language early in childhood rather than later in life, suggesting that it is the extent of language proficiency that generates one’s sensitivity to being addressed in the masculine or in the feminine. Moreover, when women are addressed in the masculine, their efforts (in terms of time spent on the maths test) decrease and they report feeling that “science is for men” more than when addressed in the feminine. We supplement the analysis with two experiments that explore the roles of general and task-specific stereotypes in generating these effects.

scholarly journals Does Respect Foster Tolerance? (Re)analyzing and Synthesizing Data From a Large Research Project Using Meta-Analytic Techniques

2021 ◽  
pp. 014616722110244
Author(s):  
Steffen Zitzmann ◽  
Lukas Loreth ◽  
Klaus Michael Reininger ◽  
Bernd Simon
Keyword(s):  
Regression Coefficient ◽  
Theory Development ◽  
High Status ◽  
Social Psychological ◽  
Way Of Life ◽  
Research Project ◽  
The Social ◽  
The Relationship ◽  
Large Research ◽  
Existing Data

Our own prior research has demonstrated that respect for disapproved others predicts and might foster tolerance toward them. This means that without giving up their disapproval of others’ way of life, people can tolerate others when they respect them as equals (outgroup respect–tolerance hypothesis). Still, there was considerable variation in the study features. Moreover, the studies are part of a larger research project that affords many additional tests of our hypothesis. To achieve integration along with a more robust understanding of the relation between respect and tolerance, we (re)analyzed all existing data from this project, and we synthesized the results with the help of meta-analytic techniques. The average standardized regression coefficient, which describes the relationship between respect and tolerance, was 0.25 (95% confidence interval [CI] = [0.16, 0.34]). In addition to this overall confirmation of our hypothesis, the size of this coefficient varied with a number of variables. It was larger for numerical majorities than for minorities, smaller for high-status than for low-status groups, and larger for religious than for life-style groups. These findings should inspire further theory development and spur growth in the social-psychological literature on tolerance.

scholarly journals Investigating the Relationship between Professionalism and (Technical, Human, and Perceptual) Skills of Managers in Poly Akril Company of Iran from Experts’ Viewpoint

2016 ◽  
Vol 6 (2) ◽  
pp. 117
Author(s):  
Marzie Ghanbari ◽  
Reza Hoveida ◽  
Seyed Ali Siadat
Keyword(s):  
Data Collection ◽  
Random Sampling ◽  
Sampling Method ◽  
Regression Coefficient ◽  
Reliability Coefficient ◽  
Descriptive Statistics ◽  
Stratified Random Sampling ◽  
Perceptual Skills ◽  
The Relationship ◽  
Test Correlation

The objective of the present study is to investigate the relationship between managers’ professionalism and (technical, human, and perceptual) skills in managers of Iran Poly Akril Company. The research is an applied one in terms of objectives, and a descriptive-correlational in terms of method. The population includes all experts working in the company in 2012 as 240 individuals among who 144 participants were selected using the stratified random sampling method proportionate to the population size as the sample size. The data collection instruments were two researcher-made questionnaires of Managers’ skills containing 22 items and with the reliability coefficient as 0.96, and Professionalism containing 28 items and the reliability coefficient as 0.95. Their validity was investigated and confirmed by professors and experts of management. Analyzing data was conducted at the two level of descriptive statistics (frequency, mean, SD, and presentation of tables and charts) and inferential statistics (one sample t-test, correlation coefficient, regression coefficient, ANOVA, and F-test).

An Empirical Examination of the Anomie Theory of Drug Use

1983 ◽  
Vol 13 (1) ◽  
pp. 49-62 ◽  
Author(s):  
R. Thomas Dull
Keyword(s):  
Drug Use ◽  
Sex Education ◽  
Adult Population ◽  
Adequate Explanation ◽  
Empirical Examination ◽  
Anomie Theory ◽  
Dependent Variables ◽  
Independent Variable ◽  
Level Of Significance ◽  
The Relationship

The purpose of the present study was to investigate the relationship between anomie theory, as measured by Srole's Anomie Scale, and the respondents self-admitted drug use (alcohol, marijuana, tobacco, amphetamines, and barbiturates). An analysis of self-reported drug use data was conducted of a general Texas adult population. This analysis included a series of bivariate cross comparison correlations between the independent variable (anomie) and the dependent drug variables. The relationship between the independent and dependent variables were further examined by calculating the correlation and level of significance within selected categories of several demographic (age, race, sex, education, income, and marital status) control variables. The results indicated that anomie was significantly correlated with several of the drug variables. However, these associations were extremely weak and of little explanatory value. It was concluded that, within the framework of this analysis, anomie theory fails to provide an adequate explanation for the use of drugs.

Currency risk impact on the financial performance of multilateral banks

2015 ◽  
Vol 13 (1) ◽  
pp. 91-118
Author(s):  
Philip Kamau ◽  
Eno L. Inanga ◽  
Kami Rwegasira
Keyword(s):  
Financial Performance ◽  
Design Methodology ◽  
Regression Coefficient ◽  
Policy Implications ◽  
Stock Exchanges ◽  
Currency Risk ◽  
Content Type ◽  
Regulatory Status ◽  
The Impact ◽  
The Relationship

Purpose – The purpose of this paper is to investigate the impact of currency risks on the financial performance of multilateral banks (MBs). Financial performance is measured here by after-tax accounting profitability or losses. Design/methodology/approach – Quantitative hypothesis regarding the impact of currency risks on the financial performance of MBs was tested by a two-tailed t test for significance of the b regression coefficient. Findings – A regression analysis was done on the total currency risk and financial performance of MBs after taking into account currency risk over eight years. The analysis of variance of the regression of the b coefficient led to non-rejection of the null hypothesis of no association, F(1, 6) = 0.77, p > 0.05. The results of the two-tailed t test on the b regression coefficient suggest that the relationship between currency risk and financial performance is statistically insignificant. Therefore, it was concluded that there is no significant impact of currency risk on the financial performance of MBs. Research limitations/implications – The results of the study can be generalized only for MBs given their peculiar characteristics as wholesale banks, which are owned mainly by governments and are generally not listed on stock exchanges. Originality/value – The study is of value to those interested in the multilateral banking industry. To the authors’ knowledge it is the first study providing empirical evidence on currency risk impact on MBs financial performance. The study finds that the currency risk impact on the financial performance of MBs is insignificant. The results are also useful to managers of MBs in terms of benchmarking their effectiveness in managing currency risk compared to their peers and learn from better performers. It has also policy implications in terms of justifying the current self-regulatory status, shareholder monitoring and governance of MBs as they are not significantly impacted by currency risk as it appears to be effectively managed.

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