2,325 research outputs found
Interview Excerpt of Mr. Donald M. Crawford, Sr.
No full text(1948-2018) Donald Mitchell Crawford, Sr. (“DC”), musician, author, and educator, was born on May 24, 1948, and was a lifelong resident of Birmingham, AL. His father and mother owned and operated “C & S Charter Tours Bus Company,” the first black-owned bus company in the state of Alabama. Crawford was a 1966 graduate of Western Olin High School in Birmingham, AL. Crawford was an outstanding drum major, playing first chair alto saxophone under the tutelage of the late Amos F. Gordon, Sr. After high school, he received a music scholarship to Alabama State University (ASU) where he earned both his Bachelor’s and Master’s Degrees in Music Education and was later inducted into the “School of Music Hall of Fame” at ASU. He was the youngest ever inducted into the Alabama Jazz Hall of Fame. He was a veteran of the U.S. Army and performed with the 291 st and 283rd Army Band in Fort Bennett, GA. DC was Band Director at Jackson Olin High School and taught in the Birmingham School System for over thirty-five years. His love for music and performing lead him after his retirement to serve as Band Director for Miles College.
Crawford is the author of “The Wheels of the Birmingham Civil Rights Movement.” This book chronicles the lives of his late father and mother, Worcy and Christine Pride Crawford, and the role he and the company played in the Birmingham Civil Rights Movement
The impact of mathematics anxiety, gender, and mathematics achievement on ontogenetic indicators for Hispanic/Latino students in higher education mathematics classes
No full textA convenience sample of 123 Hispanic/Latino students from a predominantly Hispanic/Latino South Texas community college was used to determine if gender and/or journal-writing had any effects on mathematics anxiety or achievement. Eight sections of college-algebra courses were administered the Mathematics Anxiety Rating Scale (MARS) to determine levels of mathematics anxiety and the Texas Higher Education Assessment (THEA) to determine levels of mathematical achievement. Results of the study suggest that journal-writing decreases levels of mathematics anxiety among students. In addition, the study suggests that males and females do not differ in terms of mathematical achievement. These finding are consistent with previous studies. However, the study also suggested that males and females report the same levels of mathematics anxiety and that journal-writing does not increase mathematical achievement. This is in contrast to previous published studies
Quantification of transfer of Salmonella from citrus fruits to peel, edible portion, and gloved hands during hand peeling
No full textAlthough studies have quantified bacterial transfer between hands and various materials, cross-contamination between the surface of fresh citrus fruit and the edible portions during hand peeling has not been reported. This study quantifies transfer of Salmonella to the edible portion of citrus fruit from a contaminated peel during hand peeling. Citrus fruits used for this study were Citrus sinensis (sweet orange) cultivars ‘Valencia’ and ‘Navel’ and C. unshiu (Satsuma mandarins), C. reticulata × C. paradisi (‘Minneola’ tangelo or ‘Honeybell’) and C. paradise (grapefruit) cultivar ‘Marsh'. An avirulent Salmonella Typhimurium LT - 2 (ATCC 700720) resistant to rifampicin was used for all experiments. The inoculum containing ~9 log CFU/ml (50 µl) was spot inoculated onto the equator, stem or styler of each fruit and allowed to dry for 24 h. Six volunteers put on single use latex gloves and peeled inoculated fruit. Peel, edible fruit portion and gloves were collected and enumerated separately. Three replicates of the study were performed where each volunteer peeled 2 inoculated fruit of each variety (n=36 fruit per variety).
Cross-contamination from contaminated surface of citrus fruits to edible portion or gloved hands during peeling was affected by inoculation sites. Average Salmonella transfer to the edible portion ranged from 0.16 % (Valencia inoculated at the equator) to 5.41 % (Navel inoculated at the stem). Average Salmonella transfer to gloved hands ranged from 0.41 % (Grapefruit inoculated at the stem) to 8.97 % (Navel inoculated at the stem). Most Salmonella remained on the peel of citrus fruits. The average level of Salmonella remaining on the peel ranged from 5.37% (Minneola inoculated at the equator) to 66.3% (Satsuma inoculated at the styler). When grapefruit was inoculated, the Salmonella that remained on the peel showed a bimodal pattern where some individuals left almost all Salmonella on the peel, while others left substantially less.
Foodborne outbreaks associated with fresh produce have increased worldwide as consumption of fresh produce has also increased (3, 11, 16, 20, 27). While no outbreaks have been directly linked to whole fresh citrus fruit at this time, unpasteurized orange juice has been implicated in several outbreaks caused by Salmonella, Enterotoxigenic E. coli, Shigella, hepatitis A virus, and Norovirus (6, 8, 14, 18). The majority of outbreaks involving fruit and fruit juice have been attributed to pathogens contaminating the outer skin or rind, although the peel or rind of many fruits is discarded by the consumer and not eaten (11, 12, 25).
The FDA Food Safety Modernization Act (FSMA) includes fresh produce safety in its scope and focuses on preventing contamination during the production and harvesting of fresh fruits and vegetables (10). However, fresh produce including fresh citrus fruits can become contaminated at numerous points during transport, distribution, retailing and food preparation in the kitchen environment as well as production and harvesting (5, 16, 23, 27).
Cross-contamination from the surface of fresh produce to edible portions during cutting, slicing, or peeling can occur if the outer skin or rind of fresh produce is contaminated by pathogens (12, 18, 20, 25-27). Bacterial transfer from the skin to the edible flesh has been shown to occur during cutting of tomato and cantaloupes, both of which have implicated as the source of infection in some outbreaks (4, 12, 26). The surface of fresh citrus fruit has also been a source of pathogens, which can be transmitted to the juice during squeezing or peeling. Martinez-Gonzales et al. (17) reported that cross-contamination from inoculated fresh orange skin to utensils used in orange juice squeezing occurred, which subsequently resulted in bacterial transfer from contaminated utensils to squeezed orange juice.
Although studies have been conducted to determine the various factors that influence the bacterial transfer between hands and various surface materials (7, 15, 19), cross-contamination between the surface of fresh citrus fruit and the edible portions during hand peeling has not yet been reported. While a knife or citrus peeler might be used in commercial setting, this study was undertaken to quantify transfer of Salmonella to the edible portion of citrus fruit from a contaminated peel that can occur during hand peeling of a single fruit, as might occur in the home. Transfer rates were determined between various inoculation locations on the citrus fruits to the edible portion and gloved hands.Peer reviewe
Architecture in tension: an examination of the position of the architect in the private and public sectors, focusing on the training and careers of Sir Basil Spence (1907-1976) and Sir Donald Gibson (1908-1991)
No full textIn the early 1900s tensions began to appear within the architectural profession,
as private practitioners struggled to deal with the implications of professional
colleagues moving into public sector employment. Sir Basil Spence and Sir
Donald Gibson began their architectural training in the mid-1920s and, as
tensions between the sectors intensified, Spence entered private practice and
Gibson chose to enter the public sector. Each became an exemplar of his
chosen sector of the profession and yet both have, until recently, escaped
critical attention. The tensions between the public and private sectors of the
profession have been acknowledged within the historiography, but not received
detailed analysis.
This thesis advances the current historiography by presenting an examination
of the division between the sectors, focusing on the relationship between the
RIBA and the public sector union AASTA and assessing the influence of
AASTA on Gibson's Coventry City Architect's Department.
Through an examination of archival material, contemporary published material,
and buildings, this thesis builds on the work of the Sir Basil Spence Archive
Project, adding detailed accounts of his early life, architectural training, and
RIBA presidency, presenting new information and correcting certain aspects of
the accepted historiography. It likewise presents new information on Gibson's
early life and training and his central role in achieving improved status and
representation for the public sector. An analysis of selected projects provides a
comparative study of their contrasting approaches to architecture: the
technically informed, collaborative team-work of Gibson and the individual
artistry of Spence.
Both men played pivotal roles in reforming the RIBA and in changing public and
professional perceptions of the architect, nevertheless, the long lineage and
complex nature of tensions within the profession meant that the public/private
division was never be bridged and issues of status and representation
remained essentially immutable
Summary report on the geology and mineral resources of the Poker Jim Ridge and Fort Warner areas of the Hart Mountain National Antelope Refuge, Lake County, Oregon
No full text"A compilation of available geologic information."L. Summary report on the geology and mineral resources of the Harney Lake and Malheur Lake areas of the Malheur National Wildlife Refuge, north-central Harney County, Oregon / by George W. Walker and Donald A Swanson. -- M. Summary report on the geology and mineral resources of the Poker Jim Ridge and Fort Warner areas of the Hart Mountain National Antelope Refuge, Lake County, Oregon / by George W. Walker and Donald A Swanson.Title from PDF title page (viewed on April 8, 2019).This archived document is maintained by the State Library of Oregon. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the State Library of Oregon U.S. Government Publications Collection.Text in English
Intern experience at the Texas Transportation Institute: an internship report
No full text"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirements for the degree of Doctor of Engineering."Includes vita (leaf 91)Includes bibliographical references (leaf 57)This report discusses the author's engineering experience at the Texas
Transportation Institute (TTI), Texas A&M University from March 1974 through July 1977. A
report of this experience plus twelve additional hours of academic course work were
substituted for an internship according to requirements established by the College of
Engineering. Although the author could not retroactively establish objectives of the type
associated with a typical internship, the work experience gained could be related to the two
general objectives of an intership: 1. To demonstrate an identifiable contribution to the
organization in which the intern served, and 2. To enable the intern to become aware of the
non-technical aspects of working as an engineer in a non-academic environment. While a member
of the Texas Transportation Institute staff, the author worked on a number of projects in the
areas of highway traffic engineering research and the preparation of continuing education
courses for transportation engineering officials. These assignments were contained within the
Urban Transportation Systems Division of TTI. This report delineates the author's contribution
to four particular projects and discusses the technical as well as non-technical experience
gained from each. Having been exposed to more engineering situations than many of the other
Doctor of Engineering students, the author has already formulated some rather specific
milestones for the future. The Doctor of Engineering program is discussed in conjunction with
its potential for helping the author attain these career goals and objectives. Also, some
thoughts are presented regarding the Doctor of Engineering as a viable alternative to the
Ph.D. in preparing for a career in engineering higher education
Biometrical and economical relationships between growth rate and feed consumption of steers
No full textData from the Gulf Coast Beef Cattle Pasture Research Station, Angleton, Texas and records collected by the author at the Beef Cattle facilities, Texas A&M University, College Station, Texas were included in this study. Preweaning and postweaning weights, sire and dam weights and feed consumption observations were taken on 59 steer calves of five different breed groups, namely; Hereford, Brahman, 3/4 Brahman-1/4 Hereford, 3/4 Hereford-1/4 Brahman and 1/2 Santa Gertrudis-1/4 Angus-1/8 Brahman-1/8 Hereford. Primary objectives of this study were to evaluate a method to estimate individual feed intake of group fed steers, to compute weight-age relationships and to estimate optimal slaughter weight from weight gain-feed intake and TDN/steer price relationships. A feeding arrangement similar to a balanced incomplete block design was introduced as a possible method to estimate individual feed consumption of group fed steers. ..
Assessing the capacity, feasibility, and acceptability of peer navigators to implement a malaria focal test and treat intervention targeting high-risk populations in Lao PDR
No full textBACKGROUND: Forest-going and other high-risk populations (HRPs) contribute to sustained malaria transmission in the Greater Mekong Subregion. New strategies to increase access to malaria services for these populations are required if the 2030 regional elimination target is to be met. This study assessed the feasibility, acceptability, and provider capacity for a peer navigator-led malaria focal test and treat (FTAT) intervention targeting HRPs in Champasak Province in southern Lao People’s Democratic Republic (Lao PDR).
METHODS: This research was conducted alongside a larger cluster-randomized controlled trial assessing the effectiveness of FTAT. Between April-November 2018, we conducted 38 interviews and 4 focus group discussions with diverse stakeholders, including HRPs, peer navigators, local health staff, and malaria officials, and 20 observations with a subset of 10 peer navigators. Using a hybrid deductive-inductive approach, data were thematically analyzed in Dedoose software and triangulated across methods, stakeholder types, and timepoints. The Consolidated Framework for Implementation Research guided the assessment, analysis, and interpretation of FTAT capacity, feasibility, and acceptability findings.
RESULTS: Peer navigators were highly capable of and confident in conducting the FTAT intervention (malaria testing, treatment, education, and interviewing), and stakeholders perceived the intervention to be largely feasible and acceptable. Reported benefits of FTAT included increased HRP access to free, on-site malaria testing and treatment; increased malaria knowledge among HRPs; peer to peer learning; and increased access to real-time data for program planning. Identified challenges included high FTAT implementation costs, poor road and travel conditions, and initial fear or reluctance among some HRPs to participate in FTAT, while high HRP cooperability and demand for FTAT were key facilitators to FTAT feasibility.
CONCLUSION: The peer navigator-led FTAT intervention is a feasible and acceptable approach to increasing access to malaria care among HRPs in southern Lao PDR. Demonstrated to be highly capable, effective, and accepted, lay or peer health workers could play an instrumental role in a broader strategy to achieve and sustain malaria elimination in the region. Adapting the intervention based on local resource availability may be required for programmatic scale-up, given the cost barrier
An Interpretation of the Phylogeny of the Eusimulism-Group (Diptera:Simuliidae) with Descriptions of Six New Species
No full textTitle: An Interpretation of the Phylogeny of the Eusimulism-Group (Diptera:Simuliidae) with Descriptions of Six New Species, Author: Donald M. Wood, Location: ThodeThe female, male, last stage larva and pupa of seventeen Ontario species of the Eusimulium-group are described, illustrated and keyed. Morphological and ecological knowledge of these and other species is used as a basis for interpreting the phylogeny within the group. This approach is extended, with the help of other representative species, to the derivation of a tentative phylogeny and zoogeography of the family Simuliidae. The finding from these studies contributed to the formation of a hypothesis of speciation.ThesisDoctor of Philosophy (PhD
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