Depositional environments and sequence stratigraphy of the Rockwell-Price Formation in western Maryland, south-central Pennsylvania, and northern West Virginia

The Price Formation of northern West Virginia consists of Upper Devonian - Lower Mississippian siliciclastic rocks that are primarily marine. Members of the Price Formation include from oldest to youngest the Oswayo, Cussewago, Riddlesburg Shale, and Rockwell. Rocks of the Price Formation are considered to be of genetic and temporal equivalence to the Rockwell Formation in south-central Pennsylvania, western Maryland, and the eastern West Virginia panhandle.;The research attempts to (1) interpret sedimentary facies and their depositional environments and (2) identify stratigraphic relationships across six outcrops in the central Appalachian basin. Outcrops have been measured and described along a 150 km transect from (west) Rowlesburg, West Virginia, to (east) Crystal Spring, Pennsylvania. The six exposures, ranging from approximately 56 to 227 m thick, were visually divided into packages of similar rock (stratigraphic units) according to their physical appearance and carefully described. Corel DrawRTM software was used to digitally construct small-scale graphic logs from the unit descriptions. Field descriptions and graphic logs served as the basis for the identification of facies and interpretation of depositional environments. Correlation of outcrops and recognized trends led to statigraphic and paleogeographic relationships. (Abstract shortened by UMI.)

The Impact of Cultural Assumptions about Technology on Choctaw Heritage Preservation and Sharing

Neither the effects of information and communication technology (ICT) on culture nor the cultural roles of ICT are widely understood, particularly among marginalized ethno-cultures and indigenous people. One theoretical lens that has received attention outside of Native American studies is the theory of Information Technology Cultures, or IT Culture, developed by Kaarst-Brown. This theory was a groundbreaking and foundational way to understand underlying assumptions about IT and the conflicts surrounding IT use. Kaarst-Brown identified five archetypal cultural patterns or sets of underlying cultural assumptions about IT that impacted strategic use, conflict, and technology innovation. These dimensions included assumptions about the control of IT, criticality of using IT, value of IT skills, justification of IT investments, and perceived beneficiaries of IT. These dimensions clustered in five archetypal patterns: the Fearful, Controlled, Revered, Demystified, and Integrated IT Culture. The research study described in this thesis builds on Kaarst-Brown\u27s work. This thesis determines the appropriateness and fit of the IT Culture theory and pervasiveness of archetypal patterns within a Native American tribe--the Choctaw Nation of Oklahoma. A mixed-method design, rather than traditional ethnography, is used to explore evidence of Kaarst-Brown\u27s five cultural patterns and their dimensions within the Choctaw Nation. By extending this theoretical lens and utilizing a mixed-method approach, this thesis research contributes to an understanding of the assumptions about technology within a subset of culturally respected Choctaw families. This thesis project highlights the challenge of applying a broad IT theory to a specific ICT and context. Even though there was not 100% correlation between the theoretical lens and the data gathered, this theoretical application yielded valuable results. These results offered insights into the nature of the assumptions about ICT found in a multi-generational subset of people, and potential implications for future ICT development. Choctaws deeply invested in the Tribe\u27s cultural heritage preservation and sharing efforts can now understand the potential impact of ICT before a new ICT is even introduced, rather than after the fact. Also while the original IT Culture theory utilized metaphor and symbols to explain the archetypal patterns, this thesis interpreted a new set of symbols from Choctaw folklore better suited to describe assumptions about ICT within the specific ethno-cultural context. In this project, the researcher is a non-Native American embedded in a community of a once-marginalized and long-suffering Native people, and thus, special considerations are discussed. The Choctaw have found their voice in contemporary society and are passionately asserting their self-determination as a proud Nation. As such, this thesis concludes with a discussion of practical implications for the Choctaw Nation of Oklahoma, as well as implications for Native American, ICT, and mixed-method research

Distributed Embedded Simulation And Training Research: Realistic Fire On Target Effects

Report on a project to gain a better understanding of the state of technology of fire on target effects in virtual training systems, and the alternatives available to portray accurate visual effects of direct fire, indirect fire, and mines on targets

Detection of acute gastrointestinal bleeding by means of technetium-99m in vivo labelled red blood cells

BACKGROUND: Prognosis of gastrointestinal (GI) bleeding depends on the timely [3] and accurate [8, 18] detection of the source of bleeding and sequential surgical or endoscopy therapy. Scintigraphy with red blood cells (RBCs) in vivo labelled by means of technetium-99m hastened detection of source of GI bleeding and improved management of the particular disease. Gastrointestinal endoscopy is the method of choice for the diagnostics of bleeding from upper tract and large bowel. For diagnostics of bleeding from the small bowel we can use scintigraphy with in vivo labelled autological red blood cells if pushenteroscopy, intra-operative enteroscopy or angiography are not available. MATERIAL AND METHODS: 31 patients (13 men, 18 women, aged 20-91, mean 56 years) underwent this investigation from 1998 till 2001 at the Department of Nuclear Medicine. All patients had melaena or enterorrhagia associated with acute anaemia. Gastroscopy, colonoscopy, enteroclysis or X-ray angiography did not detect the source of bleeding. RESULTS: Twenty-one patients had positive scintigraphy with in vivo labelled RBCs - 9 patients were already positive on dynamic scintigraphy, and 12 patients were positive on static images. Scintigraphy with in vivo labelled RBCs was negative in 10 patients. GI bleeding stopped spontaneously in these 10 patients with negative scintigraphy. These patients did not undergo intra- operative enteroscopy or surgery. The final diagnosis of the 21 patients with positive scintigraphy was determined in 16 patients by push-enteroscopy (6 patients), intra-operative enteroscopy (6 patients) or by surgery (4 patients). Of these 16 patients the correct place of bleeding was determined by scintigraphy with labelled RBCs in 11 (69%) patients. Final diagnoses of our 16 patients with positive scintigraphy with autological labelled RBCs were: bleeding small bowel arteriovenous malformation (6 patients), uraemic enteritis with bleeding erosions in ileum and jejunum (2 patients), Osler-Rendu- Weber disease (1 patient), pseudocyst of the pancreas with bleeding vessel communicating to the transverse colon (1 patient), bleeding submucose varix in jejunum (1 patient), carcinoid of the ileum (1 patient), bleeding from the ileosigmoideoanastomosis six days after hemicolectomy for Crohn´s disease (1 patient), bleeding from an ulcer close to the papilla of Vater (1 patient), bleeding from ulcer at jejunum after revious NSAIDs treatment (1 patient), bleeding inflammatory polyp at ileotransversoanastomosis (1 patient). GI bleeding stopped spontaneously in 5 patients with positive scintigraphy. Therefore these patients did not undergo intraoperative enteroscopy or surgery and we could not determine the final diagnosis. CONCLUSIONS: Scintigraphy with RBCs in vivo labelled technetium- 99m hastened detection of the source of GI bleeding and improved management of the source of GI bleeding and improved management of disease

Childhood sexual experiences with an older partner among men who have sex with men in Buenos Aires, Argentina

This study sought to describe childhood sexual experiences with older partners (CSEOP) among men who have sex with men (MSM) in Buenos Aires, Argentina. MSM were recruited through respondent driven sampling. They responded to a computer administered self-interview with questions on CSEOP, operationalized as manual, oral, genital, or anal contact prior to age 13 with a partner at least 4 years older. Of the 500 respondents, only 25% identified as gay. Eighteen percent of the respondents reported CSEOP, the majority of whom did not feel they were hurt by the experience and did not consider it to be childhood sexual abuse (CSA). Over two-thirds of MSM who reported CSEOP said that their older partner was a female. Only 4% of those with a female partner felt their experience was CSA compared to 44% of those who had a male partner. Among all men reporting CSEOP, those who felt sexually abused were more likely to have been physically forced or threatened, physically hurt, and emotionally hurt than those who did not feel sexually abused. Having CSEOP, being hurt by the experiences, and perceiving the experiences as sexual abuse were not associated with current HIV sexual risk or substance use behavior. In this sample of MSM in Argentina, a substantial minority reported CSEOP. Those who felt they had been sexually abused were much more likely to have had an older male partner than an older female partner, and were more likely to report having been physically forced and threatened by their older partner.Fil: Dolezal, Curtis. Columbia University; Estados UnidosFil: Carballo Diéguez, A.. Columbia University; Estados UnidosFil: Balán, Iván C.. Columbia University; Estados UnidosFil: Pando, María de los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Mabragaña, Marina. Columbia University; Estados UnidosFil: Marone, Ruben. Nexo Asociación Civil; ArgentinaFil: Barreda, Victoria. Nexo Asociación Civil; ArgentinaFil: Ávila, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; Argentin

Donning a Novel Lower-Limb Restrictive Compression Garment During Training Augments Muscle Power and Strength

International Journal of Exercise Science 13(3): 890-899, 2020. The popularity of graduated compression garments (GCG) in sport and exercise is largely driven by the abundance of anecdotal claims suggesting their efficacy. A new line of compression apparel, restrictive compression garments (RCG), integrate novel resistance technology into lower-limb compression garments designed to provide variable resistance to movement. This study aimed to investigate the effect of donning an RCG during a 4-week training program on selected performance variables. Twelve college-aged males were recruited for four weeks of lower-body strength-power resistance training. Participants were randomized 1:1 and blinded to (i) an intervention group (RCG; n = 6) that donned a lower-body RCG during training or (ii) a control group (SHAM; n = 6) that donned a sham during identical training. Both groups demonstrated significant increases in 1-repetition maximum (1-RM) on a seated leg press after 4 weeks (both p \u3c 0.001), with RCG showing a significantly greater increase compared SHAM (p = 0.005, g = 3.35). Similarly, RCG demonstrated significantly greater increases in jump height, peak power, and average power compared to SHAM (p = 0.032, g = 3.44; p \u3c 0.001, g = 4.40; p \u3c 0.001, g = 4.50, respectively). Donning a RCG while engaging in lower-body strength-power training may augment increases 1-RM on a seated leg press, jump height, peak and average power, compared with same exercise training without an RCG

Shame, Guilt, and Medical Error in Ann Patchett's State of Wonder

This is the final version. Available on open access from Johns Hopkins University Press via the DOI in this recordThrough exploring the relation between shame, guilt, and medical error in Ann Patchett's novel State of Wonder alongside author-physician Danielle Ofri's autobiographical reflections in her essay "Ashamed to Admit It: Owning up to Medical Error," this essay considers how fiction and medical nonfiction might contribute to an understanding of the experience of medical error and being a "second victim" from the point of view of the medical learner. We argue that State of Wonder expands the scope of Ofri's work on shame about medical error; the novel presents a more durational examination of an error's consequences in non-medical contexts.Wellcome TrustArts and Humanities Research Council (AHRC