Business Commons^™

Three Essays On Friend Recommendation Systems For Online Social Networks, Jiaxi Luo

Theses and Dissertations

Social networking sites (SNSs) first appeared in the mid-90s. In recent years, however, Web 2.0 technologies have made modern SNSs increasingly popular and easier to use, and social networking has expanded explosively across the web. This brought a massive number of new users. Two of the most popular SNSs, Facebook and Twitter, have reached one billion users and exceeded half billion users, respectively.

Too many new users may cause the cold start problem. Users sign up on a SNS and discover they do not have any friends. Normally, SNSs solve this problem by recommending potential friends. The current major methods …

Three Essays On Work-Nonwork Balance, Min Wan

Theses and Dissertations

Achieving balance between work and nonwork lives is important for individuals and organizations as it may generate various desirable outcomes, such as high role performance, positive role attitudes, and psychological and physiological well-being. However, scholars and practitioners have not reached a common understanding of the content and process of work-nonwork balance. A variety of work-nonwork balance definitions, theories, and measures, as well as numerous correlates, have emerged in this area. In addition, a majority of the studies focused on this topic have theorized work-nonwork balance as a stable construct and measured it in order to explain the between-individual variance. Consequently, …

Manufacturing Site Selection In The Global Context, Mahsa Mardikoraem Mardikoraem

Theses and Dissertations

The decision making regarding global site selection has been always a challenging and strategic problem. Recently, due to the globalization of the problem many new factors such as political, social, regulatory, government, environmental consideration, etc. gained importance in the decision making process. One of the goals in this thesis is to identify the relevant factors in manufacturing site selection and incorporate them into the data analysis. The collection of a wide range of factors that impact the manufacturing site selection problem at a country level, the quantification of these factors, and incorporation of them into the decision making process needs …

A‌ ‌Study‌ ‌Of‌ ‌The‌ ‌Factors‌ ‌That‌ ‌Lead‌ ‌To‌ Burnout‌ ‌In‌ ‌The‌ ‌Accounting‌ ‌Profession‌, Stephen N. Kervin

Theses and Dissertations

This applied dissertation was designed to provide information on the causes of burnout to employees in the accounting profession. A review of the literature revealed research on many different industries, but a lack on research within the accounting profession. The purpose of this research study was to examine what demographic variables increase the likelihood of an employee suffering from burnout.

In order to identify the causes of burnout for accountants, this study used a descriptive research design. The research utilized the Maslach Burnout Inventory-General Survey and a demographic questionnaire.

Quantitative analysis was applied to the interpretation of the descriptive data …

Amlo Promotion : Perception And Reality, Nicholas J. Conklin

Theses and Dissertations

Air Mobility Liaison Officers (AMLOs) provide a valuable service to Air Mobility Command as embedded liaisons to Army and Marine Units. This paper looks at the perceptions and realities of AMLO career advancement, and seeks to answer two research questions: 1) Is there a perception in the MAF that an AMLO assignment will negatively affect an officer’s promotion opportunity, and 2) Does having an AMLO assignment in one’s record affect promotion opportunity? All 18th AF Operational and OSS squadron commanders were surveyed to determine if the perception exists. To determine if an AMLO assignment actually affects promotion opportunity, HAF A1 …

Usaf Female Pilot Turnover Influence: A Delphi Study Of Work-Home Conflict, David C. Caswell

Theses and Dissertations

This study examined factors which influence the female pilot’s decision to stay or leave the Air Force. The concepts of turnover and Work-Home Conflict (WHC) were explored as a theoretical foundation. WHC describes the resultant clash as the work and home/family roles individuals attempt to balance compete for resources. This research used data from a Delphi study of 20 female active-duty U.S. Air Force pilots to provide insight into the turnover decision process of female pilots. This study concluded that WHC and family satisfaction variables should be included in future studies of a larger sample population. Additionally, the research provided …

Three Essays On The Effects Of Appraisal, Cultural, Emotional, And Cognitive Factors On Information Technologies Acceptance And Use, Chun-Lung Huang

Theses and Dissertations

In essay 1, we propose a model, which utilized Lazarus and Folkman’s Cognitive Appraisal Theory of Emotion or Appraisal Theory (1984, 1987) as a structural foundation to lay out the nomological relationships among a person’s personal, cognitive, and emotional factors in predicting technology use behaviors. Emotion, likes many social and psychological factors, is challenging to give a full-consensus definition, and has been treated as a polar counterpart of cognition. Lazarus and Folkman’s Appraisal Theory suggested that when a person is facing a (disruptive) event, he or she appraises the possible outcomes (we suppose that appraising is a form of cognitive …

Unmanned Aerial Vehicle (Uav) Operators’ Workload Reduction: The Effect Of 3d Audio On Operators’ Workload And Performance During Multi-Aircraft Control, Sungbin Kim

Theses and Dissertations

The importance and number of Unmanned Aerial Vehicle (UAV) operations are rapidly growing in both military and civilian applications. This growth has produced significant manpower issues, producing a desire that multiple aircraft are controlled by a single operator as opposed to the current model where one aircraft may require multiple operators. A potential issue is the need for an operator to monitor radio traffic for the call signs of multi-aircraft. An investigation of the use of 3D sound was undertaken to investigate whether an automatic parser, which preselected the spatial location of relevant versus irrelevant call signs, could aid UAV …

Analysis Of Inpatient Hospital Staff Mental Workload By Means Of Discrete-Event Simulation, Erich W. Maxheimer

Theses and Dissertations

Many process improvement tools have been applied to the healthcare industry to improve safety and efficiency. However, nearly all of these tools have neglected to explicitly quantify mental workload of healthcare providers despite the consensus that it is related to human performance. This research uses the Improved Performance Research Integration Tool (IMPRINT), a discrete-event simulation (DES), to quantify mental workload. Specifically, this research examines staff members in an inpatient unit at the Wright-Patterson Medical Center to detect workload differences between staff, identify trends which lead to high workload demands, evaluate the influence of patient load on mental workload, and test …

A Comparative Study Of Learning Curve Models And Factors In Defense Cost Estimating Based On Program Integration, Assembly, And Checkout, Brandon J. Johnson

Theses and Dissertations

The purpose of this research was to investigate the flattening effect at tail end of learning curves by identifying a more accurate learning curve model. The learning curve models accepted by DOD are Wright’s original learning curve theory and Crawford’s Unit Theory. The models were formulated in 1936 and 1944 respectively. This analysis compares the conventional models to contemporary learning curve models in order to determine if the current DOD methodology is outdated. The results are inconclusive as to if there is a more accurate model. The contemporary models are the DeJong and S-Curve and they both include an incompressibility …

Civil Engineer Company Grade Officer Training Needs Analysis For Contingency Operations, Brian S. Greszler

Theses and Dissertations

In terms of active duty personnel, the USAF is the smallest it has ever been since its creation in 1947. With fewer personnel to accomplish essential tasks, the training of Airmen is more important than ever. Outdated and irrelevant training can lead to gaps in the knowledge of trainees. The purpose of this research was to analyze the training needs of Civil Engineer (CE) Company Grade Officers (CGOs) in the contingency environment. This was done by first conducting a Job Analysis (JA). The JA resulted in a list of 36 critical tasks and 58 important Knowledge, Skills, and Abilities (KSAs). …

Factors Influencing Skill Retention In Multi-Skilled Air Force Aircraft Maintainers, Jessica A. Salgado

Theses and Dissertations

The 2013 National Defense Authorization Act allows the Air Force Air Logistics Complexes (ALCs) to promote workers proficient in more than one trade by one pay grade. Multi-skilling is the term used to describe workers trained in more than one job. The United States Air Force wants to utilize multi-skilling at these ALCS, but the effects of implementation are still unknown. This research focuses on the identification of skill retention influences to better understand this multi-skilling through the use of a human subjects experiment at two Air Force bases. We examine the retention of aircraft mechanics’ skill to evaluate the …

United States Air Force Officer Manpower Planning Problem Via Approximate Dynamic Programming, Amelia E. Bradshaw

Theses and Dissertations

The United States Air Force (USAF) is concerned with managing its officer corps to ensure sufficient personnel for mission readiness. Manpower planning for the USAF is a complex process which requires making decisions about accessions. Uncertainty about officer retention complicates such decisions. We formulate a Markov decision process model of the Air Force officer manpower planning problem (AFO-MPP) and utilize a least squares approximate policy iteration algorithm as an approximate dynamic programming (ADP) technique to attain solutions. Computational experiments are conducted on two AFO-MPP instances to compare the performance of the policy determined with the ADP algorithm to a benchmark …