scholarly journals AN EMPIRICAL MODELLING FRAMEWORK FOR FORECASTING FREIGHT TRANSPORTATION

Transport ◽  
2014 ◽  
Vol 29 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Hakan Güler
Keyword(s):  
Gross Domestic Product ◽  
Survey Data ◽  
Freight Transportation ◽  
Statistical Techniques ◽  
Regression Analyses ◽  
Iterative Techniques ◽  
Gravity Method ◽  
Empirical Modelling ◽  
Modelling Framework ◽  
Modelling Methods

This paper presents a framework which includes empirical modelling methods to estimate freight transportation between defined zones. In this method, observed origin and destination matrices for each type of freight are constituted based on the link counts and the roadside truck survey data. The gravity method is selected to estimate origin and destination matrices by using observed link flows, gross domestic product by provinces and interzonal distances. Advanced statistical techniques and regression analyses are used to estimate the coefficients of the gravity method. The final freight transportation matrix is calibrated with the link flows data by using iterative techniques. The developed method was applied to find the origin and destination matrix of the total freight transportation in Turkey and successful results were obtained.

scholarly journals Regression analyses of questionnaires in bedside teaching

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Wolf Ramackers ◽  
Julia Victoria Stupak ◽  
Indra Louisa Marcheel ◽  
Annette Tuffs ◽  
Harald Schrem ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Linear Regression ◽  
Survey Data ◽  
Organizational Structures ◽  
Bedside Teaching ◽  
Regression Analyses ◽  
Negative Perception ◽  
Data Analyses ◽  
Main Target ◽  
Relevant Factors

Abstract Background Students’ ratings of bedside teaching courses are difficult to evaluate and to comprehend. Validated systematic analyses of influences on students’ perception and valuation of bedside teaching can serve as the basis for targeted improvements. Methods Six hundred seventy-two observations were conducted in different surgical departments. Survey items covered the categories teacher’s performance, student’s self-perception and organizational structures. Relevant factors for the student overall rating were identified by multivariable linear regression after exclusion of variable correlations > 0.500. The main target for intervention was identified by the 15% worst overall ratings via multivariable logistic regression. Results According to the students the success of bedside teaching depended on their active participation and the teacher’s explanations of pathophysiology. Further items are both relevant to the overall rating and a possible negative perception of the session. In comparison, negative perception of courses (worst 15%) is influenced by fewer variables than overall rating. Variables that appear in both calculations show slight differences in their weighing for their respective endpoints. Conclusion Relevant factors for overall rating and negative perception in bedside teaching can be identified by regression analyses of survey data. Analyses provide the basis for targeted improvement.

scholarly journals Multitasking NPOs: An Analysis of the Relationship Between Funding Intentions and Nonprofit Capacities

2021 ◽  
Author(s):  
Sara Stühlinger ◽  
Sophie E. Hersberger-Langloh
Keyword(s):  
Public Relations ◽  
Service Delivery ◽  
Nonprofit Organizations ◽  
Capacity Building ◽  
Survey Data ◽  
Funding Source ◽  
Regression Analyses ◽  
Funding Sources ◽  
Lock In ◽  
The Relationship

AbstractNonprofit organizations (NPOs) often find themselves under pressure to invest all of their available income in mission-related activities rather than in capacity building. We investigate one factor that can influence the decision to invest in such capacity-building tasks: funding sources pursued by an organization. Drawing on the benefits theory of nonprofit finance, we take these funding sources as predetermined by an organization’s mission and propose an extension of the theory by linking it to economic multitasking theory, which states that organizations prioritize tasks that offer greater and more measurable rewards. Through regression analyses of survey data from Swiss nonprofits, we analyze the extent to which funding sources sought affect the amount of effort invested in three areas of capacity building: public relations, impact focus, and resource attraction parameters. The results support the predictions of multitasking theory by showing that the effort invested in certain capacity-building tasks is affected considerably by seeking a specific funding source. The effects are stronger for resource attraction-related tasks than for tasks closer to the service delivery of NPOs. The results indicate that an organization’s mission affects not only the available funding sources but also the extent to which an organization invests in its capacities, which can lead to a ‘lock-in’ status for organizations.

scholarly journals Impact of banning smoking in cars with children on exposure to second-hand smoke: a natural experiment in England and Scotland

2019 ◽  
Author(s):  
Anthony A Laverty ◽  
Thomas Hone ◽  
Philip E. Anyanwu ◽  
David Taylor Robinson ◽  
Frank de Vocht ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Survey Data ◽  
Tobacco Smoke ◽  
Natural Experiment ◽  
Second Hand Smoke ◽  
Regression Analyses ◽  
Difference In Difference ◽  
Difference In Differences ◽  
Survey Weighting ◽  
The Impact

ABSTRACTA ban on smoking in cars with children was implemented in April 2015 in England and December 2016 in Scotland. With survey data from both countries (NEngland=3,483-6,920 and NScotland=232-319), we used this natural experiment to assess the impact of the ban using a difference-in-differences approach. We conducted logistic regression analyses within a Difference-in-Difference framework and adjusted for age, sex, a marker of deprivation and survey weighting for non-response. Among children aged 13-15 years, self-reported levels of regular exposure to smoke in cars were 3.4% in 2012, 2.2% in 2014 and 1.3% in 2016 for Scotland and 6.3%, 5.9% and 1.6% in England. The ban was associated with a 73% reduction (95%CI -59%, -81%) in self-reported exposure to tobacco smoke among children.

scholarly journals The Influence of Freight Generation Production Characteristics of the Internal – Regional Zone Commodities on Sustainable Freight Transportation Highway Network System

2018 ◽  
Vol 159 ◽  
pp. 01014 ◽  
Author(s):  
Juang Akbardin ◽  
Danang Parikesit ◽  
Bambang Riyanto ◽  
Agus Taufik Mulyono
Keyword(s):  
Development Strategy ◽  
Computational Simulation ◽  
National Development ◽  
Freight Transportation ◽  
Distribution Model ◽  
Network System ◽  
Gravity Method ◽  
Assignment Model ◽  
Highway Network ◽  
Freight Generation

The increasing of commodity freights production in the internal – regional zone is a national development strategy to create interzone consolidation to accelerate the productivity of an internal – regional zone staple commodity. Sustainable freight transportation development requires a strategic direction based on the commodity freights production dominant characteristics in an internal-regional zone. This research has been done to estimate the distribution model and route assignment model of staple alternative commodity. Estimated generation production of commodity freights movement in production zones is influenced by zone demographic variables, infrastructure, and means of transportation. Gravity method is used to estimate the distribution model and route assignment model by calibrating it with Newton-Raphson method. The application and development of the gravity method in the modelling analysis will determine the estimation effect of sustainable freights transportation needed. The computational simulation result is an approach of mathematical model illustration for complex and systematic estimation. Therefore, the modelling results can provide the direction of sustainable highway construction on the highway network system, will determine the effectiveness and efficiency of traffic movement, and distribute the movement

scholarly journals Adolescent motherhood in Bangladesh: Evidence from 2007 BDHS data

2012 ◽  
Vol 39 (1-2) ◽  
pp. 63 ◽  
Author(s):  
S.M. Mostafa Kamal
Keyword(s):  
Logistic Regression ◽  
Survey Data ◽  
Contraceptive Method ◽  
Married Women ◽  
Multiple Logistic Regression ◽  
Regression Analyses ◽  
Factors Affecting ◽  
Adolescent Motherhood ◽  
Health Survey Data ◽  
First Time

This paper examines the factors affecting adolescent motherhood in Bangladesh using the 2007 Bangladesh Demographic and Health Survey data. Overall, 69.3 per cent of the married adolescents began childbearing. Among them 56.4 per cent were already mothers and 12.9per cent were pregnant for the first time. Of the adult married women age 20–49, 62.1 per cent initiated childbearing before age 19. The multiple logistic regression analyses revealed that women’s education, husband’s education, place of residence, ever use of contraceptive method, religion, wealth and region are important determinants of adolescent motherhood in Bangladesh.

scholarly journals Ascending Bloom’s Pyramid: Fostering Student Creativity and Innovation in Academic Library Spaces

2017 ◽  
Vol 78 (1) ◽  
Author(s):  
Mark Bieraugel ◽  
Stern Neill
Keyword(s):  
Student Perceptions ◽  
Survey Data ◽  
Academic Libraries ◽  
Academic Library ◽  
Statistical Techniques ◽  
New Ideas ◽  
And Behavior ◽  
Creativity And Innovation ◽  
Innovative Behaviors

Our research examined the degree to which behaviors and learning associated with creativity and innovation were supported in five academic library spaces and three other spaces at a mid-sized university. Based on survey data from 226 students, we apply a number of statistical techniques to measure student perceptions of the types of learning and behavior associated with the selected spaces. We found that the on-campus makerspace located outside the library encouraged the most innovative behaviors and exploration of new ideas. Within the library, collaboration rooms were the best spaces for encouraging creativity. There is an opportunity for the academic library to be reconceptualized as a place to foster creativity and innovation in students. We believe that academic libraries should continue to offer a variety of spaces for students, including quiet spaces for reflection, noisy spaces for collaboration and networking, and makerspaces for experimentation.

Political Cynicism, Public Interest Blackballing and Voter Turnout: The Case of South Korea's 2000 National Assembly Elections

2004 ◽  
Vol 5 (1) ◽  
pp. 91-111 ◽  
Author(s):  
SUNWOONG KIM ◽  
KISUK CHO
Keyword(s):  
Survey Data ◽  
Voter Turnout ◽  
Public Interest ◽  
Negative Information ◽  
Regression Analyses ◽  
The South ◽  
Aggregated Data ◽  
National Assembly ◽  
Political Cynicism

In the South Korea's 16th National Assembly (NA) elections held on 13 April 2000, there was widespread speculation that the Citizens Alliance's (CA's) public interest blackballing campaign against ‘unfit’ candidates increased voter cynicism and decreased voter turnout, as it was the lowest ever for NA elections. We empirically evaluate this speculation by conducting logit analyses of individual voter survey data as well as regression analyses on district-wide aggregated data on turnout. Although we find that cynical voters are likely to be more sympathetic to CA's blackballing campaign, we do not find any evidence that the campaign decreases voter turnout. These findings are consistent with Kahn and Kenny (1999) who argue that voters respond well to the negative information if it is presented in an appropriate manner.

Too Many Cooks in the Kitchen

2012 ◽  
Vol 26 (1) ◽  
pp. 32-50 ◽  
Author(s):  
Mark Spriggs ◽  
Andy Yu ◽  
David Deeds ◽  
Ritch L. Sorenson
Keyword(s):  
Survey Data ◽  
Family Firm ◽  
Collaborative Network ◽  
Regression Analyses ◽  
Concentrated Ownership ◽  
Network Orientation ◽  
The Family ◽  
And Performance ◽  
Innovative Capacity ◽  
Dispersed Ownership

This study examines the connection between innovative capacity and small family firm performance and how that relation is moderated by collaborative network orientation and family firm ownership. Using regression analyses of survey data, we found support for a link between innovative capacity and performance that was moderated by the collaborative network orientation and the dispersal of ownership of the family firm. Furthermore, our findings indicate that two configurations enhance this link: (a) concentrated ownership combined with high collaborative network orientation and (b) dispersed ownership and low collaborative network orientation.

Understanding Faculty and Student Attitudes about Distance Education

2017 ◽  
pp. 410-434
Author(s):  
Rui Li ◽  
Jennifer Bunk ◽  
Esther Smidt
Keyword(s):  
United States ◽  
Distance Education ◽  
Online Learning ◽  
Multiple Regression ◽  
Survey Data ◽  
Student Attitudes ◽  
Psychological Processes ◽  
Regression Analyses ◽  
Large Role ◽  
Positive Attitudes

The purpose of this chapter is to further understand faculty and student attitudes about distance education by exploring the psychological processes through which these attitudes are influenced. The authors explored whether feelings of excitement or fear mediate and/or moderate the relationships between experiences with distance education and various faculty and student attitudes. Survey data from 152 faculty and 1,400 students from a mid-sized United States public university were collected. The results of multiple regression analyses revealed support for both mediation and moderation in both samples. Thus, feelings of excitement/fear play a large role in explaining both why and to what degree experiences with distance education relate to attitudes. The authors suggest that consistent communication about the positive aspects of distance education that instill a sense of excitement among campus communities may be helpful in shaping more positive attitudes about online learning.

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