Fire Science and Firefighting Commons^™

More Than A Century After Problem Emerged, Manhole Explosions Still Injuring Dozens In New York City, Gaspard Le Dem, Gabriel Sandoval

Capstones

Since the early days of electrification, New York City has been rattled by manhole explosions –– underground blasts that injure residents, damage buildings, force evacuations, cause power outages and traffic disruptions.

Consolidated Edison, the city's largest electric provider, has for decades blamed manhole issues on bad weather and road salt that erodes underground wires. But some experts and former utility workers say lack of maintenance is at the root of the problem.

Meanwhile, city and state officials have failed to rein in the problem through weak laws and loose oversight. As a result, unsuspecting drivers and pedestrians continue to be …

Firefighters’ Perception Of Leadership Behaviors On Their Psychological Well-Being: A Case Study, Craig E. Damien

CUP Ed.D. Dissertations

The psychological well-being of firefighters is an important aspect of fire service, along with the increased awareness of the psychological effects of fire service on firefighters. This study is necessary due to the lack of research exploring how firefighters perceive such influence on their psychological well-being. Understanding leadership’s influence on their psychological well-being is important, since a low level of well-being can lead to depression, anxiety, and suicides. This qualitative, exploratory, case study explores how firefighters in Florida perceive the influence of leader behaviors on their psychological well-being. Data was gathered through a qualitative questionnaire, semi-structured interviews and the Ryff …

Chemometric Applications In Fire Debris Analysis: Likelihood Ratios From Naive Bayes And Frequency Of Component And Pyrolysis Product Occurrence, Anuradha Akmeemana

Electronic Theses and Dissertations

One of the major challenges in fire investigation is the determination of the cause of fire. The fire can be accidental or intentional. The determination of ignitable liquid residue (ILR) from fire debris helps the process and this process is called fire debris analysis in forensic science. This is one of the most complex areas in the field of forensics because of the evaporation of the ILR from the debris and the interference of the substrate matrix with the ILR if present. In the present, the final decisions in fire debris analysis are based on categorical statements and it only …

The Evaluation Of Classifier Performance On The Forensic Analysis Of Fire Debris And The Expansion Of The Substrate Database, Alyssa Allen

Electronic Theses and Dissertations

The current protocols in fire debris analysis rely on ignitable liquid pattern recognition and the identification of target compounds. These practices allow fire debris analysts to determine whether a sample contains or is absent of ignitable liquid residue and to classify that type of ignitable liquid based upon subjective thresholds. A statistical approach using computationally mixed datasets was devised in this research to generate an objective approach to the classification of fire debris samples and to determine error rates. Quadratic, linear, and partial least squares linear discriminant analysis (QDA, LDA, and PLS-DA) models were developed and evaluated to determine the …

Evaluation Of Restoration Techniques And Management Practices Of Tule Pertaining To Eco-Cultural Use, Irene A. Vasquez

Cal Poly Humboldt theses and projects

Tule (Schoenoplectus sp.) is a native plant commonly used by California tribes and Indigenous people throughout the world (Macía & Balslev 2000). Ecological, social and regulatory threats to its use in contemporary Indigenous culture highlight major issues concerning natural resource management. My ancestral homeland, what is now Yosemite National Park, stands as a figurehead in the intersection of land management and Indigenous peoples. An important element of Traditional Ecological Management (TEM) for quality basketry materials is prescribed fire, an element western science is increasingly acknowledging for creating a more biodiverse and heterogeneous landscape. This research was conducted in Mariposa and …