Implementation of subsurface utility engineering in Ontario: cases and a cost model

2007 ◽  
Vol 34 (12) ◽  
pp. 1529-1541 ◽  
Author(s):  
Hesham Osman ◽  
Tamer El-Diraby
Keyword(s):  
Cost Model ◽  
Cost Savings ◽  
The United States ◽  
Valuable Insight ◽  
Potential Cost ◽  
Case Study Analysis ◽  
Underground Utilities ◽  
Utility Information ◽  
One Year

This paper investigates a relatively new engineering service that is being introduced in Ontario: subsurface utility engineering (SUE). This service combines civil engineering, surveying, geophysics, and nondestructive excavation for the accurate mapping of underground utilities. This paper presents the results of a one-year study that investigated the use of SUE on large infrastructure projects in Ontario. The study involved performing a detailed cost analysis of nine successful SUE projects, four of which are presented in this paper. Potential cost savings were estimated for each case study and all indicated that SUE has a positive return on investment. In addition, two industry-wide surveys were conducted to investigate the effects of inaccurate utility information on projects. Results indicate that inaccurate utility information has a significant impact on project cost, schedule, and damage to existing utilities. Using the results of the case study analysis and the survey, a generic cost model for SUE was developed that relates project specific characteristics to costs that could be incurred because of inaccurate utility information. This investigation provides valuable insight to the application of a relatively new process in Canada following successful results in the United States.

scholarly journals Human security as biosecurity

2021 ◽  
pp. 1-23
Author(s):  
Craig Albert ◽  
Amado Baez ◽  
Joshua Rutland
Keyword(s):  
International Security ◽  
Relevant Literature ◽  
Human Security ◽  
The United States ◽  
Security Threat ◽  
Global Security ◽  
Case Study Analysis ◽  
Theoretical Approaches ◽  
The Individual

Abstract Research within security studies has struggled to determine whether infectious disease (ID) represents an existential threat to national and international security. With the emergence of SARS-CoV-2 (COVID-19), it is imperative to reexamine the relationship between ID and global security. This article addresses the specific threat to security from COVID-19, asking, “Is COVID-19 a threat to national and international security?” To investigate this question, this article uses two theoretical approaches: human security and biosecurity. It argues that COVID-19 is a threat to global security by the ontological crisis posed to individuals through human security theory and through high politics, as evidenced by biosecurity. By viewing security threats through the lens of the individual and the state, it becomes clear that ID should be considered an international security threat. This article examines the relevant literature and applies the theoretical framework to a case study analysis focused on the United States.

Use of an optical surface scanner in assessment of outcome following rhinoplasty surgery

2008 ◽  
Vol 122 (9) ◽  
pp. 972-977 ◽  
Author(s):  
H Chau ◽  
R Dasgupta ◽  
V Sauret ◽  
G Kenyon
Keyword(s):  
Surgical Intervention ◽  
University Hospital ◽  
Facial Features ◽  
Optical Surface ◽  
Case Study Analysis ◽  
The Future ◽  
University College London ◽  
One Year ◽  
The Right

AbstractObjective:To demonstrate the use of an optical surface scanner, with associated software, in the assessment of rhinoplasty patients, and to discuss the possible clinical applications of this technology in the future.Design:Case study analysis of pre- and post-operative scans of a patient undergoing septorhinoplasty at Whipps Cross University Hospital, London, UK.Subject:A 21-year-old man undergoing septorhinoplasty underwent pre-operative optical surface scanning of his face. The scans were repeated at one week and one year post-operatively. Software developed at University College London was then used to analyse the scans.Results:The scans clearly showed that the man's dorsal hump had been well reduced and the nose straightened, with a resulting 1600 mm3 gain on the right side and a 1000 mm3 loss on the left side of the nose. Tip projection had also been achieved.Conclusion:This technique allowed objective quantification of facial features and analysis of change. It may well prove useful in the future in predicting change following surgical intervention.

scholarly journals Learning from Past Policy: Assessing United States Foreign Policy over Indonesia in Resolving the 1999 East Timor Crisis

2021 ◽  
Vol 23 (1) ◽  
pp. 1
Author(s):  
Sigit S. Nugroho
Keyword(s):  
United States ◽  
Foreign Policy ◽  
Low Cost ◽  
The United States ◽  
East Timor ◽  
United States Foreign Policy ◽  
Case Study Analysis ◽  
High Degree ◽  
The U.S

Assessing the output of past foreign policy is instrumental for any country to learn policy-relevant insights, to appreciate its experience, and to improve its future conduct. To glean such insights, this article borrows Baldwin’s framework in assessing the success and failure in foreign policy. Using a case study analysis, it assesses the United States’ (U.S.) influence attempt towards Indonesia to resolve the 1999 East Timor humanitarian crisis. President Clinton’s decision to undergo an influence attempt primarily aimed to change Indonesia’s policy while gaining support from U.S. allies in the process. The article finds that Clinton’s decision was a highly successful attempt. This finding is based on several factors: (1) the attempt effectively attained the intended primary and secondary goals at a considerably high degree; (2) it was conducted at a considerably low cost for the U.S.; (3) it inflicted a high cost towards Indonesia; (4) the increase in Clinton’s stake strengthened the U.S. resolve to pursue the influence attempt; and (5) Clinton had successfully overcome the difficult undertaking as Indonesia possessed higher stake over East Timor. These findings provide some lessons for both U.S. and Indonesian foreign policymakers to chart future relations for the two nations.

Case Study Analysis of a Resource Room and Self-Contained Classroom Model with Emotionally Disturbed Students

2015 ◽  
pp. 151-170
Keyword(s):  
Emotionally Disturbed ◽  
The United States ◽  
Intervention Strategies ◽  
Health Issues ◽  
Resource Room ◽  
Case Study Analysis ◽  
Service Delivery Models ◽  
Mental Health Issues ◽  
Delivery Models

The chapter focuses on the IDEA disability category of Emotional Disturbance (ED), which ranks fifth among school-aged students in the United States that have been diagnosed with an exceptionality. ED is a disability that, due to severe behavioral and mental health issues, affects a student's ability to succeed academically in school, which many times leads to the student not finishing high school. The chapter explains that most service delivery models for students who are classified as ED occur in a resource room or self-contained classroom model. Two case studies demonstrate services within such models that have been found to be successful. The chapter also includes a discussion on specific intervention strategies that can assist teachers working with ED students.

Iran: Adversaries and Nuclear Reversal

2020 ◽  
pp. 152-179
Author(s):  
Rupal N. Mehta
Keyword(s):  
The United States ◽  
International Community ◽  
Window Of Opportunity ◽  
Study Analysis ◽  
Nuclear Program ◽  
Case Study Analysis ◽  
Comprehensive Plan

This chapter presents an in-depth case study analysis of the Iranian nuclear program from its inception to the country’s ultimate decision to renounce its nuclear ambitions in 2015. The chapter begins by examining the trajectory of the Iranian nuclear program and some of the initial attempts by the international community to persuade Iran to end it. Using archival and interview-based data, this analysis demonstrates the powerful role of inducements offered by the United States and other members of the international community, in conjunction with the election of President Rouhani, that provided a window of opportunity that ultimately led to the Joint Comprehensive Plan of Action (JCPOA). The chapter concludes with an update about the long-term viability of the Iran deal.

scholarly journals 2694. Incidence of Pneumocytis jiroveci (PJP) Infection with 3-Month Prophylaxis of Aerosolized Pentamidine (AP) in Autologous Hematopoietic Stem Cell Transplantation (HSCT)

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S947-S947
Author(s):  
Sarah Perreault ◽  
Dayna McManus ◽  
Rebecca Pulk ◽  
Jeffrey E Topal ◽  
Francine Foss ◽  
...  
Keyword(s):  
Cost Savings ◽  
Cost Comparison ◽  
High Dose ◽  
Potential Cost ◽  
Hematopoietic Stem ◽  
Increased Risk ◽  
One Year ◽  
Relapsed Disease ◽  
The Cost ◽  
Autologous Hsct

Abstract Background HSCT patients are at an increased risk of developing PJP after transplant due to treatment induced immunosuppression. Given the risk of cytopenias with co-trimoxazole, AP is utilized as an alternative for PJP prophylaxis. A prior study revealed a 0% (0/19 patients) incidence when AP prophylaxis was given for one year post autologous HSCT. Current guidelines recommend a duration of 3 – 6 months for PJP prophylaxis in autologous HSCT. The primary endpoint of this study was to assess the incidence of PJP infection within one year post autologous HSCT in patients who received 3 months of AP. Secondary endpoint was a cost comparison of 3 months compared with 6 months of AP. Methods A single-center, retrospective study of adult autologous HSCT patients at Yale New Haven Hospital between February 2013 and December 2017 was performed. Patients were excluded if: <18 years of age, received < or >3 months of AP, changed to alternative PJP prophylactic agent or received no PJP prophylaxis, received tandem HSCT, deceased prior to one year post-transplant from a non PJP-related infection, HIV positive, or lost to follow-up. Pentamidine was given as a 300 mg inhalation monthly for 3 months starting Day +15 after autologous HSCT. Results A total of 288 patients were analyzed, no PJP infections occurred within one year post HSCT. Additionally, 187 (65%) patients received treatment post HSCT with 135/215 (63%) receiving maintenance immunomodulatory drugs for myeloma and 40/288 (14%) patients developing relapsed disease. 43% of the chemotherapy regimens for relapsed disease included high dose corticosteroids. The cost difference of using 3 months vs. 6 months of AP is $790, reflecting the cost of drug and its administration. Applying our incidence of 0%, potential cost savings of 3 months vs. 6 months of AP would be $330,000 over 5 years or $66,000 per year. Conclusion Three months of AP for PJP prophylaxis in autologous HSCT patients is safe and effective as well as cost-effective compared with a 6 month regimen. Disclosures All authors: No reported disclosures.

scholarly journals Wage Determination for Regular Hired Farm Workers: An Empirical Analysis for Georgia

1986 ◽  
Vol 18 (2) ◽  
pp. 197-206 ◽  
Author(s):  
Lewell F. Gunter
Keyword(s):  
The United States ◽  
Farm Workers ◽  
Wage Determination ◽  
Case Study Analysis ◽  
Farm Work ◽  
Seasonal Workers ◽  
Wage Rates ◽  
Level Data ◽  
Hired Labor

AbstractRegular hired farm workers, performing 150 days or more of farm work annually, became increasingly important in the 1970's. The number of regular hired workers in the United States increased by almost 50 percent during the decade, while the number of seasonal workers, operators, and unpaid family workers declined. Pricing of regular hired labor is investigated through estimation of three nested wage determination models in a case study analysis for Georgia. Micro-level data on individual workers were used to analyze the effects of general human capital, farm worker duties, local labor market conditions, and farm characteristics on wage rates.

scholarly journals Application of Unit Commitment with Market Pool in a Peaking Power Generation Firm in the Philippines for a Cost Reduction Case Study

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
Luke Rey Santillan ◽  
Kenn Brylle Senen ◽  
Robert Wamilda ◽  
Lanndon Ocampo ◽  
Rafael Seva ◽  
...  
Keyword(s):  
Power Generation ◽  
Developing Countries ◽  
Unit Commitment ◽  
Cost Savings ◽  
The Philippines ◽  
Mixed Integer ◽  
Potential Cost ◽  
Small Power ◽  
Generation Costs

This paper attempts to provide an optimum loading schedule of power generating units with the least cost by solving a unit commitment (UC) problem and to present good estimates of cost differences when UC problem is not applied. UC is a fundamental optimization problem of power generation systems which determines the optimum schedule of generating units which minimizes generation costs. However, for small power generation firms which are situated in developing countries, UC-based problems are poorly understood if not implemented and the scheduling of generating units is based on some methodologies which may provide results that are not optimal. Thus, a case study in a small power generation firm in central Philippines is carried out to elucidate these objectives. The case requires a solution of the mixed-integer nonlinear programming (MINLP) problem. Results show that the proposed UC-based problem yields optimal costs and the cost disparity from the current scheduling scheme is approximately at 27% which may be considered as potential cost savings. This shows that UC-based problem provides a reliable platform in achieving minimal generation costs. These results are significant to decision-makers particularly in small power generation firms and to engineering practitioners in the Philippines and in some developing countries as these provide an overview of the disparity of cost figures of not implementing UC.

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