scholarly journals Bio-economic analysis of super-intensive closed shrimp farming and improvement of management plans: a case study in Japan

2019 ◽  
Vol 85 (6) ◽  
pp. 1055-1065 ◽  
Author(s):  
Junpei Shinji ◽  
Setsuo Nohara ◽  
Nobuyuki Yagi ◽  
Marcy Wilder
Keyword(s):  
Population Dynamics ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Experimental Studies ◽  
Shrimp Farming ◽  
Research Subjects ◽  
Economic Management ◽  
Economic Productivity ◽  
New Research

AbstractCrustacean aquaculture is a multibillion-dollar industry worldwide that continues to show significant growth. Shrimp farming has been intensified for decades, and super-intensive closed culture systems have now been developed to improve productivity and reduce environmental burdens. Here, we used bio-economic approaches to investigate the mechanisms and economic productivity of shrimp farming. We used three steps: (1) path analysis by using structural equation models to determine the candidate factors associated with productivity; (2) modeling of population dynamics and profits; and (3) simulations based on the models to clarify the productive characteristics of a super-intensive closed culture system. Our findings suggest that the population dynamics of the system were limited by unidentified factors that differed from those found in many experimental studies, such as water temperature, salinity, dissolved oxygen, and nitrogenous waste. The unidentified factors were related to the number of days of rearing and cumulative biomass mortality. The production plan suggested by our simulation required frequent culture rotation to increase profits. Our case study provides important practical information about the characteristics of super-intensive shrimp farming, implications for efficient economic management, and new research subjects for the future.

scholarly journals Exploring the importance of diversified physical activities in early childhood for later motor competence and physical activity level: a seven-year longitudinal study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Paulina S. Melby ◽  
Peter Elsborg ◽  
Glen Nielsen ◽  
Rodrigo A. Lima ◽  
Peter Bentsen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Experimental Studies ◽  
Physical Activities ◽  
School Intervention ◽  
Activity Level ◽  
Life Course Perspective ◽  
Motor Competence ◽  
Daily Physical Activities

Abstract Background Research indicates that childhood motor competence (MC) can predict physical activity (PA) levels later in life and it has been argued that frequently engaging in a wide diversity of physical activities will eventually improve children’s MC. However, no longitudinal or experimental studies have confirmed this theoretical rationale. The aims of this study are to explore the longitudinal associations between diversified physical activities at age six and later MC and PA (time spent in moderate-to-vigorous PA) (age nine and 13). Furthermore, we explore to what extent the longitudinal association between diversified physical activity and PA is mediated by MC. Methods Longitudinal data from the Copenhagen School Intervention Study were used for this analysis, where 704 participated (69% response rate). Diversified physical activity (self-reported), MC (The Körperkoordinationstest für Kinder battery of postural stability and locomotor skills) and PA (accelerometer) were assessed in the children at age six, age nine and age 13. A total of 654 participated in at least two of the measures and, therefore, were included in the analysis. Two structural equation models were constructed, with diversified physical activity at age six and MC and PA at age nine as predictors of PA and MC at age 13. Results The data from both models demonstrated good model fit. Diversified physical activity at 6 years of age was significantly associated with physical activity and MC at age 13, when adjusting for sex, age, intervention, weight, height, and previous levels of PA and MC. Diversified physical activity at age six was also positively associated with PA and MC at age nine, which were, in turn, positively related to PA at age 13 but to a lesser degree than diversified PA at age six. The association between diversified physical activity at age six and PA at age 13 was not mediated by MC at age nine. Conclusions The results of this study indicate that diversified physical activity at age six is important for the development of MC and PA in adolescence. Increasing the diversity of children’s daily physical activities, not only the amount and intensity, seems important for future PA behavior and thereby health promotion in a life course perspective.

Who are the farm shop buyers? A case study in Naumburg, Germany

2018 ◽  
Vol 120 (2) ◽  
pp. 255-268
Author(s):  
Miroslava Bavorova ◽  
Diana Traikova ◽  
Juliane Doms
Keyword(s):  
Structural Equation ◽  
Design Methodology ◽  
Theory Of Planned Behaviour ◽  
Consumer Behaviour ◽  
Structural Equation Models ◽  
Content Type ◽  
Shopping Behaviour ◽  
Observed Behaviour ◽  
Structured Questionnaire

Purpose The purpose of this paper is to examine the factors that influence consumers’ shopping behaviour from farm shops. Design/methodology/approach The study is based on the theory of planned behaviour (TPB). Data were gathered in 2015 and 2016 via a quantitative written survey of 135 pedestrians in a structured questionnaire in Naumburg, East Germany. The authors use the variance-based, partial least squares subfamily of structural equation models for the analysis, allowing the authors to investigate the causes of the formation of attitudes, social norms and perceived behavioural control (PBC) related to buying from farm shops. Findings Seen through the TPB prism, the most powerful explanatory construct in the model is PBC. This is followed by favourable attitudes towards buying at the farm gate. Interestingly, the injunctive norms construct is not significant, while the descriptive norms construct is. This means that the observed behaviour of relevant peers is more strongly linked to buying at the farm gate than what significant others want respondents to do. Originality/value Farm shops are one of the innovative distribution channels used by farmers to sell regional products directly to consumers. Studies that analyse the factors that have an effect on consumer behaviour when buying food from farm shops are very scarce. This paper fills this gap and the findings have implications for communications to consumers and labelling.

scholarly journals The Effect of Service Quality toward Customer Satisfaction in a Sharia Pawnshop (Case Study on a Sharia Pawnshop in Jambi Province)

2021 ◽  
Vol 6 (1) ◽  
pp. 105
Author(s):  
Busriadi Busriadi ◽  
Rahman Arifin
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
Structural Equation ◽  
Descriptive Analysis ◽  
Equation Model ◽  
Customer Relationship ◽  
Research Subjects ◽  
Quality Performance ◽  
Method Approach

Purpose: This research analyzes the business phenomenon of PT. Pegadaian Syariah (Persero) Tbk. in Jambi province, in which the problem is how to build customer satisfaction to achieve the company goal. This research is designed to analyze the effect of service quality on customer satisfaction. This research aims to find answers to the flow of service quality performance. In addition, the modeling in this study also aims to provide a critical understanding of the concept and measurement of customer relationship management.Design/Method/Approach: This research used a descriptive analysis approach and a quantitative method to test the variables by using hypothesis testing. The research subjects were 110 customers of PT. Pegadaian Syariah (Persero) Tbk. of Jambi Province. To analyze the data, researchers used the Structural Equation Model (SEM) by using Amos 22 computer program.Findings: The results showed that service quality had a positive and significant effect on customer satisfaction. This study provides a contribution that strengthens the justification of previous research in which this research develops the effect of service quality by expanding the study on customer satisfaction.Originality/Values: The novelty of the study is identified from the issue which is studied consistently and the place of the research.

A Virtual Intelligent Creativity Matrix for Employees Clustered Interactivity Network with Knowledge Development Program

2014 ◽  
Vol 4 (1) ◽  
pp. 65-79
Author(s):  
Iraj Mahdavi ◽  
Hamed Fazlollahtabar ◽  
Nezam Mahdavi-Amiri ◽  
Mohsen Arabmaghsudi ◽  
Mohammad Hassan Yahyanejad
Keyword(s):  
Development Program ◽  
Assessment Method ◽  
Knowledge Development ◽  
Research Subjects ◽  
Research Teams ◽  
Network Interaction ◽  
Time Periods ◽  
New Research ◽  
Structural Aspects

Creative organizations needing teams to combine and integrate inputs from other teams, the teams' structure of interaction is an important prerequisite for creativity. Here, the authors investigate different structural aspects teams' network organization and their creativity within a knowledge development program (KDP). Initially, a pilot group of people in an organization is selected. This group is evaluated through creativity parameters using a questionnaire. Considering the questionnaires' data, a decision maker configures the creativity matrix by a bipolar scoring technique. Applying the creativity matrix, clustering is performed. The pilot group is divided into some research teams. The research subjects are submitted to the teams and their progress in solving the problem is assessed through a comprehensive network interaction assessment method (CNIAM). Finally, an allocated problem is solved and some new research subjects are evolved to be assigned to the next configured teams. This procedure is repeated dynamically for different time periods. A case study in Mazandaran Gas Company in Iran is worked out to illustrate the effectiveness and applicability of the proposed approach.

scholarly journals Moderating Effect of Demographic Variables by Analyzing the Motivation and Satisfaction of Visitors to the Former Presidential Vacation Villa: Case Study of Cheongnam-Dae, South Korea

Societies ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 104
Author(s):  
Bo-Hyun Seong ◽  
Chang-Yu Hong
Keyword(s):  
Structural Equation ◽  
Structural Equation Models ◽  
The Elderly ◽  
Ecological Value ◽  
Motivation Factors ◽  
Gender And Age ◽  
The Difference ◽  
The Relationship ◽  
Positive Effect

This study aims to verify whether there is a difference in groups vis-à-vis gender and age in the relationship between the motivation and satisfaction of visiting the former presidential villa, Cheongnam-dae. Using structural equation models, we examined that Relaxation has a positive effect on satisfaction in all groups. However, the relationship between motivation and satisfaction, such as Convenience, Historicity, and Fellowship, reveals gender and age differences, while the relationship among three motivation factors differs by gender and age. Four motivational factors, i.e., Relaxation, Convenience, Historicity, and Satisfaction, significantly affected the youth (n = 171), while the three factors, i.e., Relaxation, Convenience, and Fellowship, significantly affected the elderly (n = 143). Our analysis encourages expanding ecotourism infrastructure to enhance the ecological value of Cheongnam-dae. It is also necessary to replenish related facilities and contents to enhance the effectiveness of ecological experiences and environmental education. Therefore, this work is significant as it contributes to the development of an analytic framework by discussing the difference between motivation and satisfaction.

scholarly journals Consumer Attitudes to Organic Foods. A Spanish Case Study

2020 ◽  
Vol 34 (2) ◽  
pp. 755
Author(s):  
Mónica Díaz Donate ◽  
Rodolfo Bernabéu Cañete
Keyword(s):  
Structural Equation ◽  
Maximum Likelihood Method ◽  
Structural Equation Models ◽  
Organic Food ◽  
Consumer Attitudes ◽  
Positive Influence ◽  
Likelihood Method ◽  
Organic Foods ◽  
La Mancha

The purpose of the present study is to determine the various factors that influence attitudes towards the purchase of organic food. The methodology consisted in a survey of 463 consumers in the Castilla-La Mancha Region who purchased food items for their homes. A multivariate data analysis was carried out by means of Structural Equation Models (SEM), computed with the maximum likelihood method. Attitudes toward the purchase of organic foods are directly related to consumer lifestyle and are influenced by consumers’ attitude towards the environment as well. In this sense, lifestyle and environmental attitudes have a positive influence on the purchase of organic food.

Measuring the Big Five in Self-Report and Other Ratings

2000 ◽  
Vol 16 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Claudio Barbaranelli ◽  
Gian Vittorio Caprara
Keyword(s):  
Big Five ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Error Variance ◽  
The Self ◽  
Self Report ◽  
Sources Of Information ◽  
Third Person ◽  
Fit Indexes ◽  
Response Modes

Summary: The aim of the study is to assess the construct validity of two different measures of the Big Five, matching two “response modes” (phrase-questionnaire and list of adjectives) and two sources of information or raters (self-report and other ratings). Two-hundred subjects, equally divided in males and females, were administered the self-report versions of the Big Five Questionnaire (BFQ) and the Big Five Observer (BFO), a list of bipolar pairs of adjectives ( Caprara, Barbaranelli, & Borgogni, 1993 , 1994 ). Every subject was rated by six acquaintances, then aggregated by means of the same instruments used for the self-report, but worded in a third-person format. The multitrait-multimethod matrix derived from these measures was then analyzed via Structural Equation Models according to the criteria proposed by Widaman (1985) , Marsh (1989) , and Bagozzi (1994) . In particular, four different models were compared. While the global fit indexes of the models were only moderate, convergent and discriminant validities were clearly supported, and method and error variance were moderate or low.

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