Design Analysis of an Air Force Fuel Cell Maintenance Hangar

A Fuel Cell Maintenance Hangar (FCMH) was constructed in 2013 based on a 2012 design; Figure 1.1.1 is a rendering shown below. This report evaluates the design for life safety, and property protection systems. The facility was designed based on Air Force standard prescriptive methods; the resultant design is compared to minimum prescriptive methods and to as-built drawings. In addition, the property protection design criteria were evaluated by simulating the maximum expected design fire in a hangar bay 1 using Fire Dynamics Simulator (FDS). Section 1 consists of a general overview of the FCMH including descriptions of the facility and the relevant codes and standards. Section 2 consists of detailed design analysis using prescriptive codes and standards. All systems were evaluated using Engineering Technical Letter (ETL) 02- 15 and Uniform Facilities Criteria (UFC) 3-600-01. Egress systems were evaluated using National Fire Protection Association (NFPA) 101; the fire detection and notification system was evaluated using NFPA 72; automatic sprinkler system was evaluated using NFPA 13, and FM Global Data Sheet 3-26; the high expansion foam system was evaluated using NFPA 11. Section 3 consists of a performance-based design evaluation. A JP-8 fuel spill in the hangar containing two F-35 Joint Strike Fighters was modeled; the results were used to evaluate the automatic sprinkler and high expansion foam systems. Section 4 consists of conclusions and recommendations to the prescriptive based design of the fuel cell maintenance hangar. Generally, the design was found to comply with codes; however, the prescriptive design analysis revealed the existence of extra fire protection features. The performance-based design evaluation revealed that a high reliance is placed on manual activation of high expansion foam for the purpose of property protection

Payload crew interface design criteria and techniques. Task 1: Inflight operations and training for payloads

Guidelines are developed for use in control and display panel design for payload operations performed on the aft flight deck of the orbiter. Preliminary payload procedures are defined. Crew operational concepts are developed. Payloads selected for operational simulations were the shuttle UV optical telescope (SUOT), the deep sky UV survey telescope (DUST), and the shuttle UV stellar spectrograph (SUSS). The advanced technology laboratory payload consisting of 11 experiments was selected for a detailed evaluation because of the availability of operational data and its operational complexity

Suicide postvention : how can we improve existing models?

This study was undertaken to assess the effectiveness of suicide postvention approaches used with suicide survivors, who are defined as the families, partners and friends who have lost a loved one to suicide. The goal was to determine the experience of postvention support for survivors through their own voice, and then to use the findings to develop a proposal for a National Suicide Postvention Plan to better meet the stated needs of this disenfranchised population. Twelve male and female survivors from around Massachusetts were interviewed using an open-ended question format to encourage the description of their own postvention experience. The participants were all over eighteen years old at the time of the suicide and had endured the loss at least one full year ago. The questions also elicited the participant\u27s perspective on what an ideal postvention plan would look like. The findings of the research showed that more than half of the participants had no postvention support available to them after the death. For those who did, group therapy comprised of other survivors and led by a facilitator who is also survivor was reported as being the most effective. The majority of the participants articulated the need for an active outreach program as an ideal model, to help combat the solation so prevalent among survivors

The Structure of Forest Soils

Author Institution: Athens Forest Research Center, Central States Forest Experiment Station, Athens Ohi

The Experiences of Co-Teachers Who Co-Taught Virtually During COVID-19: A Qualitative Hermeneutic Phenomenological Study

This hermeneutic phenomenological study aimed to describe and understand the experiences of online co-teaching through the perspectives of general education and special education co-teachers at the middle school level during the COVID-19 pandemic. This study followed Bandura’s social cognitive theory, emphasizing self-efficacy and reciprocal determinism as it explains how people think, feel, motivate themselves, and behave. The study answered the following overarching research question: How do co-teachers perceive their ability to implement all-online learning during the COVID-19 pandemic? The school setting for this study is Sunny County Public Schools (pseudonym), a suburban public school district in East Georgia. The researcher used individual interviews, focus groups, and journal prompts to triangulate the data. A cross-case and thematic analysis organized the findings of the co-teachers’ descriptions into themes to analyze each perspective during the pandemic. Three themes emerged from the data: building relationships, collaborating effectively, and adapting to the virtual environment. The study provides valuable insights into the opportunities and recommendations for improving virtual co-teaching practices, with implications for school districts and co-teachers. Future research is recommended to explore further the impact of virtual co-teaching on teacher self-efficacy, collaboration, and student achievement

Sex Based Differences in Trust and Dissent: An Exploration of Leaders and Followers in Healthcare Management

This dissertation is a quantitative study which looks at the ways in which healthcare followers perceive their leaders regarding gender, over the concepts of trust and organizational dissent. The study was open to members of non-clinical healthcare associations, but clinicians were not specifically excluded. Inferential statistics were inconclusive, as they directly contradict literature that directly correlates trust and dissent in the general business world. Reading subtextual, the outcome indicates possible sublimated conflict between and among both genders, for both followers and leaders. Objectively, women showed more trust in their female leaders, but subjectively this was not true. Indicators in the subjective material suggest potential negative social capital use in the social network and potential gender solidarity bias. Further study and ramifications for covert behavior, relational aggression and healthcare conflict research are discussed

Creating Artful Thinkers - Transforming Research into Practice, Onsite to Online Learning

National Gallery of Art educators Julie Carmean and Sara Lesk propose presenting about their process of transforming research into practice through creating the National Gallery’s first Massive Open Online Course (MOOC), specifically for K-12 educators, using the pedagogy of Harvard’s Artful Thinking Routines and the National Gallery’s art collection. This free, international, online learning experience aims to democratize the opportunity for teachers to bring critical thinking through art to their students around the world. Participants will experience a combined onsite/online demonstration of one of their MOOC modules by, first, engaging with a work of art, using an Artful Thinking routine; second, watching a produced video of students responding to the same work, using the same routine as participants; and third, discussing the experience and the documentation of student learning, as would happen on a discussion forum. The presenters will then invite participants to give actionable feedback to course creators

Identification of novel components of Trypanosoma brucei editosomes

The editosome is a multiprotein complex that catalyzes the insertion and deletion of uridylates that occurs during RNA editing in trypanosomatids. We report the identification of nine novel editosome proteins in Trypanosoma brucei. They were identified by mass spectrometric analysis of functional editosomes that were purified by serial ion exchange/gel permeation chromatography, immunoaffinity chromatography specific to the TbMP63 editosome protein, or tandem affinity purification based on a tagged RNA editing ligase. The newly identified proteins have ribonuclease and/or RNA binding motifs suggesting nuclease function for at least some of these. Five of the proteins are interrelated, as are two others, and one is related to four previously identified editosome proteins. The implications of these findings are discussed

Occupational Therapy in Prisons

This study investigates the needs of incarcerated individuals upon reintegration into the community. In this article, we use thematic analysis to dissect two prison documentaries in order to best assess the needs of these individuals to inform occupational therapy intervention. Occupational therapy seeks to empower individuals while analyzing needs and how the individuals can be best supported. Our analysis shows that there are many needs that go unaddressed prior to community reintegration leading to a higher chance of recidivism recurring. Through better understanding the needs of individuals, occupational therapy can become better informed on how intervention can benefit this specific population

Studies on the Molecular Biology of Naegleru Fowleri and Identification of N. Fowleri in the Environment

Naegleria fowleri, a free-living ameboflagellate, is the causative agent of primary amebic meningoencephalitis. Healthy humans sporadically become infected with N. fowleri and develop fatal PAM after recreational or work exposure to freshwater; accordingly, there is a need for monitoring the presence of pathogenic amebeflagellates in public freshwater. The present study was conducted to determine whether a nested PCR assay could be used for detection of N. fowleri in freshwater habitats. PCR analysis was used to test samples from Virginia, Connecticut, Arizona, and Oklahoma for the presence of N. fowleri in lakes, ponds, soil, and domestic water supplies. The amebae were identified in all 4 states from soil and water sources, including domestic water supplies. In addition to identification in the environment, it is also important to determine virulence factors of the ameba. Although virulence factors have not been defined, resistance to complement lysis and production of phospholipases may account for pathogenicity of this ameba. Studies were performed to determine the gene encoding a complement regulatory protein, CD59, found in membrane fractions of N. fowleri. The genome of this organism has not been sequenced, therefore, we have constructed a genomic DNA library to search for putative virulence factors or drug targets. We have performed partial sequencing of 155 plasmids and have identified putative genes for cell motility, chromosome segregation, gene regulation, protein synthesis and degradation, protein regulation, cell signaling, respiration and energy production, membrane synthesis and metabolism, amino acid synthesis, as well as genes with unknown functions. Also, we have identified a putative virulence factor, a patatin-like protein. Patatin has been shown to exhibit phospholipase A2 activity in other organisms and has been shown to be involved in invasion into human tissue in certain pathogens. Northern analysis demonstrated hybridization with N. fowleri RNA at 3kb, but not with RNA from other free-living amebae tested. RT-PCR analysis was positive for pathogenic N. fowleri and negative for nonpathogenic Naegleria spp. Further studies are needed to determine whether the patatin-like protein in N. fowleri serves as a virulence factor and plays a role in invasion in human tissue