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Sample records for case history study

  1. A Pedagogical Trebuchet: A Case Study in Experimental History and History Pedagogy

    ERIC Educational Resources Information Center

    Brice, Lee L.; Catania, Steven

    2012-01-01

    A common problem history teachers face regardless of their field of specialization is how to help students find answers to the most difficult historical questions, those for which the sources are unavailable or inaccessible, and teach them to do so in a methodologically valid manner. This article presents a case study which shows how a project in…

  2. Metric usage study: A look at 6 case histories

    NASA Astrophysics Data System (ADS)

    This study was prepared to describe the metric experiences, good as well as bad, of a number of firms representing a cross-section of American business and industry. Their experiences show that there are problems as well as opportunities inherent in metric conversion. The six case histories presented in this publication reflect the trend, the drawbacks, and the merits of metric usage in the private sector. The United States Metric Board was created by Congress to plan and coordinate the increasing voluntary use of the metric system in the United States. This study has been developed as part of the Board's public awareness and education program. The six firms that were studied are Black and Webster, Samuel Cabot, Inc., Caterpillar Tractor, National Distillers Company, Levi Strauss & Co., and Inland Steel Company in the preparation of this publication.

  3. Haematopoietic cancer and medical history: a multicentre case control study

    PubMed Central

    Vineis, P.; Crosignani, P.; Sacerdote, C.; Fontana, A.; Masala, G.; Miligi, L.; Nanni, O.; Ramazzotti, V.; Rodella, S.; Stagnaro, E.; Tumino, R.; Vigano, C.; Vindigni, C.; Costantini, A. S.

    2000-01-01

    BACKGROUND—Viruses (such as Epstein-Barr virus) and pathological conditions (mainly involving immunosuppression) have been shown to increase the risk of haematolymphopoietic malignancies. Other associations (diabetes, tonsillectomy, autoimmune diseases) have been inconsistently reported.
METHODS—The association between different haematolymphopoietic malignancies (lymphomas, myelomas and leukaemias) and the previous medical history has been studied in a population-based case-control investigation conducted in Italy, based on face to face interviews to 2669 cases and 1718 population controls (refusal rates 10% and 19%, respectively). Controls were a random sample of the general population.
RESULTS—Previous findings were confirmed concerning the association between non-Hodgkin's lymphoma (NHL) and lupus erythematosus (odds ratio, OR=8.4; 95% CI 1.6, 45), tuberculosis (OR=1.6; 1.05, 2.5) and hepatitis (1.8; 1.4, 2.3). An association was found also between NHL and maternal (OR=2.8; 1.1, 6.9) or paternal tuberculosis (OR=1.7; 0.7, 3.9). Odds ratios of 4.0 (1.4, 11.8) and 4.4 (1.1, 6.6) were detected for the association between NHL and Hodgkin's disease, respectively, and previous infectious mononucleosis, but recall bias cannot be ruled out. No association was found with diabetes, tonsillectomy and adenoidectomy. An association with malaria at young age and "low grade" lymphatic malignancies is suggested. One interesting finding was the observation of four cases of poliomyelitis among NHL patients, one among Hodgkin's disease and one among myeloid leukaemia patients, compared with none among the controls (Fisher's exact test for NHL and Hodgkin's disease, p= 0.03, one tail).
CONCLUSIONS—Some of these findings are confirmatory of previous evidence. Other observations, such as the putative role of the polio virus and of malaria are new. A unifying theory on the mechanisms by which previous medical history may increase the risk of

  4. The Path of History: Narrative Analysis of History Textbooks--A Case Study of Belgian History Textbooks (1945-2004)

    ERIC Educational Resources Information Center

    Vanhulle, Bert

    2009-01-01

    The philosophical background of the subject history in secondary education has been mainly addressed through research based on "obvious" source types (curricula, discussions in committees or journals, ...). This article proposes a narrative method of analysing history textbooks in order to study the underlining historical philosophy of…

  5. Doing Local History: A Case Study of New Brunswick, New Jersey

    ERIC Educational Resources Information Center

    Marino, Michael P.; Crocco, Margaret Smith

    2012-01-01

    This article provides a methodology that teachers can use to incorporate themes and ideas related to local history in their classrooms. Using the city of New Brunswick, New Jersey as a case study, the article offers different approaches that allow local history to be connected to wider themes in American history. The focus here on a small,…

  6. The Mystery of the Blue Death: A Case Study in Epidemiology and the History of Science

    ERIC Educational Resources Information Center

    Muench, Susan Bandoni

    2009-01-01

    This case study introduces students to John Snow, considered to be one of the founders of both epidemiology and anesthesiology, and a remarkable figure in the history of science. Although historical case studies are often less popular with students than contemporary issues (Herreid 1998), a number of aspects of this case make it attractive to…

  7. Assessing Investigative Skills in History: A Case Study from Scotland

    ERIC Educational Resources Information Center

    Hillis, Peter

    2005-01-01

    Recent changes in the history syllabi stress the importance of developing an investigative/enquiry method of learning involving the framing of questions, subsequent research, and the presentation of findings. Scotland has made several attempts to assess not only the end result (the paper) but also the process itself and now uses an extended essay…

  8. Case studies in cholera: lessons in medical history and science.

    PubMed Central

    Kavic, S. M.; Frehm, E. J.; Segal, A. S.

    1999-01-01

    Cholera, a prototypical secretory diarrheal disease, is an ancient scourge that has both wrought great suffering and taught many valuable lessons, from basic sanitation to molecular signal transduction. Victims experience the voluminous loss of bicarbonate-rich isotonic saline at a rate that may lead to hypovolemic shock, metabolic acidosis, and death within afew hours. Intravenous solution therapy as we know it was first developed in an attempt to provide life-saving volume replacement for cholera patients. Breakthroughs in epithelial membrane transport physiology, such as the discovery of sugar and salt cotransport, have paved the way for oral replacement therapy in areas of the world where intravenous replacement is not readily available. In addition, the discovery of the cholera toxin has yielded vital information about toxigenic infectious diseases, providing a framework in which to study fundamental elements of intracellular signal transduction pathways, such as G-proteins. Cholera may even shed light on the evolution and pathophysiology of cystic fibrosis, the most commonly inherited disease among Caucasians. The goal of this paper is to review, using case studies, some of the lessons learned from cholera throughout the ages, acknowledging those pioneers whose seminal work led to our understanding of many basic concepts in medical epidemiology, microbiology, physiology, and therapeutics. PMID:11138935

  9. Conflict Resolution and History: The War with Mexico as a Case Study.

    ERIC Educational Resources Information Center

    Gardner, Arlene L.; Chambers, John W.

    2001-01-01

    Discusses how to incorporate conflict resolution into history focusing on the Conflict Resolution in History project. Provides a case study depicting how to use conflict resolution by presenting a lesson plan exploring the 1846 War between the United States and Mexico. (CMK)

  10. JSTOR: A Case Study in the Recent History of Scholarly Communications

    ERIC Educational Resources Information Center

    Schonfeld, Roger C.

    2005-01-01

    Purpose: To argue for the consideration from an historical perspective of technology-enabled changes in higher education. Design/methodology/approach: Uses examples from the author's history of JSTOR as a case study. Findings: That the case of JSTOR offers evidence that technology-enabled changes in higher education will have historical interest.…

  11. Studying Epistemic Cognition in the History Classroom: Cases of Teaching and Learning to Think Historically

    ERIC Educational Resources Information Center

    Maggioni, Liliana

    2010-01-01

    Building on the literature on epistemic cognition, epistemic beliefs, and historical thinking, three class-level case studies were conducted to investigate features of historical thinking and history-specific epistemic beliefs of high-school students and their teachers. These cases also considered teachers' pedagogical practices and the potential…

  12. The Changing Nature of Church College Relations: A History and Case Study of Concordia University Texas

    ERIC Educational Resources Information Center

    Kirk, Kristi K.

    2013-01-01

    This study provides a history and case study of Concordia University Texas (CTX). There has been a gap in the scholarly research literature regarding how and to what extent Concordia Texas mirrors the path of other denominational colleges and universities in terms of relationship to their founding church bodies. Therefore, the purpose of this…

  13. The Utilization of Local History in Teaching American Religious History: A Gilded Age and Progressive Era North Dakota Case Study

    ERIC Educational Resources Information Center

    Price, Christopher Neal

    2013-01-01

    Teachers of college-level courses on American religious history generally leave out the importance of local and regional histories when telling the story of religion in America. The study of local history provides a fertile ground for understanding broad national trends in a local context. This dissertation focuses upon a little-studied religious…

  14. History Places: A Case Study for Relational Database and Information Retrieval System Design

    ERIC Educational Resources Information Center

    Hendry, David G.

    2007-01-01

    This article presents a project-based case study that was developed for students with diverse backgrounds and varied inclinations for engaging technical topics. The project, called History Places, requires that student teams develop a vision for a kind of digital library, propose a conceptual model, and use the model to derive a logical model and…

  15. Teaching History with Comic Books: A Case Study of Violence, War, and the Graphic Novel

    ERIC Educational Resources Information Center

    Decker, Alicia C.; Castro, Mauricio

    2012-01-01

    In this essay, the authors present a case study that demonstrates how graphic novels can be utilized in the history classroom. More specifically, they discuss the benefits (and challenges) of using comic books to teach undergraduates about war and violence. While much of their discussion focuses on the historical particularities of Uganda, their…

  16. The Development of Dalton's Atomic Theory as a Case Study in the History of Science: Reflections for Educators in Chemistry

    ERIC Educational Resources Information Center

    Viana, Helio Elael Bonini; Porto, Paulo Alves

    2010-01-01

    The inclusion of the history of science in science curricula--and specially, in the curricula of science teachers--is a trend that has been followed in several countries. The reasons advanced for the study of the history of science are manifold. This paper presents a case study in the history of chemistry, on the early developments of John…

  17. National History Day: An Ethnohistorical Case Study or Taking the Lid Off the Pot.

    ERIC Educational Resources Information Center

    Page, Marilyn

    This document is a study of the dynamics of National History Day (NHD). The report notices a discrepancy between accounts of National History Day and those concerning contemporary history education. Contemporary history instruction was seen as boring and unimportant, while National History Day activities were seen as a fun opportunity for students…

  18. Ten case history studies of energy efficiency improvements in pulp and paper mills. Final report

    SciTech Connect

    Not Available

    1981-01-01

    The ten technologies chosen for case history development are: sonic sootblowing in boilers, boiler operation on oil-water emulsified fuel, energy efficient motors, computerized control of excess air for boilers, boiler control and load allocation, driving of waste-activated sludge by multiple effect evaporation, pre-drying of hog fuel, lime kiln computerization, heat wheel for process heat recovery, and organic Rankine bottoming cycle for thermomechanical pulping heat recovery. For each case study, there is given: the company name, employee contact, plant summary, a description of the energy consuming process and of the energy-saving action, an assessment of energy savings, and the decision process leading to the adoption of the measure. A data summary for discounted cash flow analysis is tabulated for each case. (LEW)

  19. The Development of Dalton's Atomic Theory as a Case Study in the History of Science: Reflections for Educators in Chemistry

    NASA Astrophysics Data System (ADS)

    Viana, Hélio Elael Bonini; Porto, Paulo Alves

    2010-01-01

    The inclusion of the history of science in science curricula—and specially, in the curricula of science teachers—is a trend that has been followed in several countries. The reasons advanced for the study of the history of science are manifold. This paper presents a case study in the history of chemistry, on the early developments of John Dalton’s atomic theory. Based on the case study, several questions that are worth discussing in educational contexts are pointed out. It is argued that the kind of history of science that was made in the first decades of the twentieth century (encyclopaedic, continuist, essentially anachronistic) is not appropriate for the development of the competences that are expected from the students of sciences in the present. Science teaching for current days will benefit from the approach that may be termed the “new historiography of science”.

  20. Genome-wide association study reveals greater polygenic loading for schizophrenia in cases with a family history of illness.

    PubMed

    Bigdeli, Tim B; Ripke, Stephan; Bacanu, Silviu-Alin; Lee, Sang Hong; Wray, Naomi R; Gejman, Pablo V; Rietschel, Marcella; Cichon, Sven; St Clair, David; Corvin, Aiden; Kirov, George; McQuillin, Andrew; Gurling, Hugh; Rujescu, Dan; Andreassen, Ole A; Werge, Thomas; Blackwood, Douglas H R; Pato, Carlos N; Pato, Michele T; Malhotra, Anil K; O'Donovan, Michael C; Kendler, Kenneth S; Fanous, Ayman H

    2016-03-01

    Genome-wide association studies (GWAS) of schizophrenia have yielded more than 100 common susceptibility variants, and strongly support a substantial polygenic contribution of a large number of small allelic effects. It has been hypothesized that familial schizophrenia is largely a consequence of inherited rather than environmental factors. We investigated the extent to which familiality of schizophrenia is associated with enrichment for common risk variants detectable in a large GWAS. We analyzed single nucleotide polymorphism (SNP) data for cases reporting a family history of psychotic illness (N = 978), cases reporting no such family history (N = 4,503), and unscreened controls (N = 8,285) from the Psychiatric Genomics Consortium (PGC1) study of schizophrenia. We used a multinomial logistic regression approach with model-fitting to detect allelic effects specific to either family history subgroup. We also considered a polygenic model, in which we tested whether family history positive subjects carried more schizophrenia risk alleles than family history negative subjects, on average. Several individual SNPs attained suggestive but not genome-wide significant association with either family history subgroup. Comparison of genome-wide polygenic risk scores based on GWAS summary statistics indicated a significant enrichment for SNP effects among family history positive compared to family history negative cases (Nagelkerke's R(2 ) = 0.0021; P = 0.00331; P-value threshold <0.4). Estimates of variability in disease liability attributable to the aggregate effect of genome-wide SNPs were significantly greater for family history positive compared to family history negative cases (0.32 and 0.22, respectively; P = 0.031). We found suggestive evidence of allelic effects detectable in large GWAS of schizophrenia that might be specific to particular family history subgroups. However, consideration of a polygenic risk score indicated a significant

  1. Cross-Border Collaboration in History among Nordic Students: A Case Study about Creating Innovative ICT Didactic Models

    ERIC Educational Resources Information Center

    Spante, Maria; Karlsen, Asgjerd Vea; Nortvig, Anne-Mette; Christiansen, Rene B.

    2014-01-01

    Gränsöverskridande Nordisk Undervisning/Utdanelse (GNU, meaning Cross-Border Nordic Education), the larger Nordic project, under which this case study was carried out, aims at developing innovative, cross-border teaching models in different subject domains in elementary school, including mathematics, language, science, social studies and history.…

  2. Case history studies of energy conservation improvements in the dairy industry

    SciTech Connect

    Not Available

    1982-06-01

    Presented are ten case histories about energy-efficient technologies implemented by the dairy industry. For each case is presented: the name and location of the company, and its product line; energy consumption and costs at the plant before and after implementation of energy-conserving technology; the factors that prompted the investment; and product quality as a result of the new equipment. The measures presented are: refrigeration compressor replacement, turbulators in boiler tubes, stack exchange on boilers, reverse osmosis, six-effect evaporator, multi-effect evaporator with thermal vapor recompressor, spray dryer heat recovery, efficient compressor operations, mechanical vapor recompression evaporator, preheated spray dryer air with recoverable waste heat. (LEW)

  3. Plagiarism: A case history.

    PubMed

    Sadler, L L

    1977-03-01

    A case of plagiarism involving duplication of the author's drawings is discussed. The chronology of events leading to an out-of-court settlement is reviewed and an attempt is made to clarify certain often misunderstood points in the Copyright Law as it applies to illustrators.

  4. Family history of cancer and the risk of laryngeal cancer: a case-control study from Italy and Switzerland.

    PubMed

    Garavello, Werner; Turati, Federica; Bosetti, Cristina; Talamini, Renato; Levi, Fabio; Lucenteforte, Ersilia; Chiesa, Fausto; Franceschi, Silvia; La Vecchia, Carlo; Negri, Eva

    2012-02-01

    Only limited data is available on the relationship between family history of laryngeal and other neoplasms and laryngeal cancer risk. We investigated the issue using data from a multicentre case-control study conducted in Italy and Switzerland between 1992 and 2009 including 852 cases with histologically confirmed laryngeal cancer and 1970 controls admitted to hospital for acute, non neoplastic conditions. Unconditional logistic regression models adjusted for age, sex, study center, education, tobacco smoking, alcohol drinking and number of siblings were used to estimate the odds ratios (ORs) of laryngeal cancer. The multivariate OR was 2.8 (95% confidence interval [CI], 1.5-5.3) in subjects reporting a first-degree relative with laryngeal cancer, as compared to subjects with no family history. The OR was higher when the relative was diagnosed before 60 years of age (OR = 3.5, 95% CI 1.4-8.8). As compared to subjects without family history, non-smokers, and moderate drinkers, the OR was 37.1 (95% CI 9.9-139.4) for current smokers, heavy drinkers, with family history of laryngeal cancer. Family history of colorectal (OR = 1.5, 95% CI 1.0-2.3) and kidney (OR = 3.8, 95% CI 1.2-12.1) cancer were also associated to an increased risk of laryngeal cancer, while no significant increase in risk was found for family history of cancer at all sites, excluding the larynx (OR = 1.1).

  5. A Case Study of Co-Teaching in an Inclusive Secondary High-Stakes World History I Classroom

    ERIC Educational Resources Information Center

    van Hover, Stephanie; Hicks, David; Sayeski, Kristin

    2012-01-01

    In order to provide increasing support for students with disabilities in inclusive classrooms in high-stakes testing contexts, some schools have implemented co-teaching models. This qualitative case study explores how 1 special education teacher (Anna) and 1 general education history teacher (John) make sense of working together in an inclusive…

  6. The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study

    SciTech Connect

    1982-07-01

    This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of

  7. Familial history of cancer and childhood acute leukemia: a French population-based case-control study

    PubMed Central

    Ripert, Mahaut; Menegaux, Florence; Perel, Yves; Méchinaud, Françoise; Plouvier, Emmanuel; Gandemer, Virginie; Lutz, Patrick; Vannier, Jean-Pierre; Lamagnére, Jean-Pierre; Margueritte, Geneviève; Boutard, Patrick; Robert, Alain; Armari-Alla, Corinne; Munzer, Martine; Millot, Frédéric; de Lumley, Lionel; Berthou, Christian; Rialland, Xavier; Pautard, Brigitte; Clavel, Jacqueline

    2007-01-01

    Objective A case-control study was conducted to investigate the role of a familial history of cancer in the etiology of childhood acute leukemia (AL). Methods The history of cancer in the relatives of 472 cases was compared to that of 567 population-based controls. Recruitment was frequency matched on age, gender and region. The familial history of cancer in each child’s relatives was reported by the mother in response to a standardized self-administered questionnaire. Results A familial history of solid tumor in first- or second-degree relatives was associated with an increased risk of ALL (OR=1.6 [1.2–2.1]), while a familial history of hematopoietic malignancies in first- or second-degree relatives was associated with an increased risk of AML (OR=4.3 [1.4–13]). The ORs for the histories of cancer increased with the number of relatives with cancer (OR=1.5 [1.1–2.0] for one relative and OR=2.3 [1.3–3.8] for two relatives or more; ptrend<0.0001). Significant associations between childhood AL and familial history of genital cancers and brain tumor were also observed (OR=2.7 [1.2–5.8], OR=10.7 [1.3–86], respectively). Conclusion This study supports the hypothesis that a familial history of cancer may play a role in the etiology of childhood acute leukemia. It also evidences some specific associations that require further investigation. PMID:17923819

  8. Case history studies of energy conservation improvements in the meat industry

    SciTech Connect

    Not Available

    1982-06-01

    Presented are case histories for ten energy-efficient technologies implemented by the meat industry. For each case is presented: the name and location of the plant, name of plant employee contact with address and telephone number, energy consumption and costs at the plant before and after implementation of energy-conserving technology, description of the investment decision process, and changes in production or product quality as a result of the new equipment. The measures presented are: continuous rendering, high-pressure return on the boiler, heat recovery from condensate return and flash steam, continuous whole blood processing, preheating of process water with recovered refrigeration waste heat, continuous rendering of poultry scraps, electrical stimulation of beef, preheating and storing process water with recovered refrigeration waste heat, microcomputer control system, and housekeeping improvements. (LEW)

  9. A Bayesian Semiparametric Approach for Incorporating Longitudinal Information on Exposure History for Inference in Case-Control Studies

    PubMed Central

    Bhadra, Dhiman; Daniels, Michael J.; Kim, Sungduk; Ghosh, Malay; Mukherjee, Bhramar

    2014-01-01

    In a typical case-control study, exposure information is collected at a single time-point for the cases and controls. However, case-control studies are often embedded in existing cohort studies containing a wealth of longitudinal exposure history on the participants. Recent medical studies have indicated that incorporating past exposure history, or a constructed summary measure of cumulative exposure derived from the past exposure history, when available, may lead to more precise and clinically meaningful estimates of the disease risk. In this paper, we propose a flexible Bayesian semiparametric approach to model the longitudinal exposure profiles of the cases and controls and then use measures of cumulative exposure based on a weighted integral of this trajectory in the final disease risk model. The estimation is done via a joint likelihood. In the construction of the cumulative exposure summary, we introduce an influence function, a smooth function of time to characterize the association pattern of the exposure profile on the disease status with different time windows potentially having differential influence/weights. This enables us to analyze how the present disease status of a subject is influenced by his/her past exposure history conditional on the current ones. The joint likelihood formulation allows us to properly account for uncertainties associated with both stages of the estimation process in an integrated manner. Analysis is carried out in a hierarchical Bayesian framework using Reversible jump Markov chain Monte Carlo (RJMCMC) algorithms. The proposed methodology is motivated by, and applied to a case-control study of prostate cancer where longitudinal biomarker information is available for the cases and controls. PMID:22313248

  10. Teaching Nineteenth Century Afro-American History: The Case Study Approach.

    ERIC Educational Resources Information Center

    Cotton, Barbara R.

    1979-01-01

    In this case study approach, teaching episodes designed using Richard Wade's thesis concerning slavery in the city are presented. Episodes include studies of Jacksonville, Florida, Savannah, Georgia, and New Orleans, Louisiana. (Author/RLV)

  11. Studying Ancient History.

    ERIC Educational Resources Information Center

    Barrow, Robin

    1982-01-01

    Defends the value and relevance of the study of ancient history and classics in history curricula. The unique homogeneity of the classical period contributes to its instructional manageability. A year-long, secondary-level course on fifth-century Greece and Rome is described to illustrate effective approaches to teaching ancient history. (AM)

  12. The Effect of Positive Family History of Autoimmunity in Juvenile Idiopathic Arthritis Characteristics; a Case Control Study

    PubMed Central

    Khani, Mehdi; Ziaee, Vahid; Moradinejad, Mohamad-Hassan; Parvaneh, Nima

    2013-01-01

    Objective To compare Juvenile Idiopathic Arthritis (JIA) patients with and without family history of autoimmune disease with respect to clinical features and laboratory data. Methods Sixteen JIA patients with family history of autoimmune disease were identified during study, 32 patients were chosen for comparative group from referred patients to the rheumatology clinic according to the date of referral. Two groups were compared with respect to age of onset, sex, subtype, disease activity, duration of active disease and laboratory variables. Findings The age of onset was significantly lower in JIA patients with family history of autoimmunity (4.7 years vs. 7.0 years; P=0.02), polyarthicular subtype was more frequent in patients with positive family history (50% vs.25%; P=0.04) most of JIA patients with positive family history were in the active phase at the time of study (64% vs 25%; P=0.02) and had a longer duration of active disease (21.0 months vs 12.3 months; P=0.04). Patients with positive family history had more positive ANA (43.5%% vs 12.5%; P=0.01) and also more positive ADA (75% vs 20.8%; P=0.002). Two groups were similar according to sex, and other laboratory variables. Conclusion JIA patients with family history of autoimmune disease seem to have a more severe disease than patients without such family history, they are younger at the onset, and have mostly poyarthicular subtype. They also have more ANA and ADA positivity. These findings are different from familial JIA case-control studies according to active disease duration, subtype, and ANA positivity. PMID:24800019

  13. Lifestyle, family history, and risk of idiopathic Parkinson disease: a large Danish case-control study.

    PubMed

    Kenborg, Line; Lassen, Christina F; Ritz, Beate; Andersen, Klaus K; Christensen, Jane; Schernhammer, Eva S; Hansen, Johnni; Wermuth, Lene; Rod, Naja H; Olsen, Jørgen H

    2015-05-15

    The relationship between Parkinson disease (PD) and smoking has been examined in several studies, but little is known about smoking in conjunction with other behaviors and a family history of PD. Using unconditional logistic regression analysis, we studied individual and joint associations of these factors with idiopathic PD among 1,808 Danish patients who were diagnosed in 1996-2009 and matched to 1,876 randomly selected population controls. Although there was a downward trend in duration of smoking, this was not observed for daily tobacco consumption. A moderate intake of caffeine (3.1-5 cups/day) was associated with a lower odds ratio for PD (0.45, 95% confidence interval: 0.34, 0.62), as was a moderate intake of alcohol (3.1-7 units/week) (odds ratio = 0.60, 95% confidence interval: 0.58, 0.84); a higher daily intake did not reduce the odds further. When these behaviors were studied in combination with smoking, the odds ratios were lower than those for each one alone. Compared with never smokers with no family history of PD, never smokers who did have a family history had an odds ratio of 2.81 (95% confidence interval: 1.91, 4.13); for smokers with a family history, the odds ratio was 1.60 (95% confidence interval: 1.15, 2.23). In conclusion, duration of smoking seems to be more important than intensity in the relationship between smoking and idiopathic PD. The finding of lower risk estimates for smoking in combination with caffeine or alcohol requires further confirmation.

  14. Teaching Recent History in Countries that Have Experienced Human Rights Violations: Case Studies from Chile

    ERIC Educational Resources Information Center

    Toledo, Maria Isabel; Magendzo, Abraham; Gazmuri, Renato

    2011-01-01

    Incorporating recent history into the educational curricula of countries that have experienced human rights violations combines the complexities of teaching history, teaching recent history, and human rights education. Recent history makes a historical analysis of social reality and a historiographical analysis of the immediate. It is located…

  15. [Somatoform disorders in neurology visits: history and circumstances: retrospective study of 124 cases].

    PubMed

    Dubas, F; Thomas-Antérion, C

    2012-12-01

    We report 124 cases of somatoform disorders, considering psychogenic disorders at the same level as neurological disorders. We noted any psychic, somatic or social condition (history taking) and facilitating circumstances. The patients were aged 16 to 84 years old; 71.7% were women. We observed pain (35.4%), psychogenic headache (25%), sensorimotor loss (27.4%), gait and psychogenic tremor (17.7%), cognitive disorders (11.8%), ocular symptoms (7.2%), and urogenital symptoms (2.4%). Delay to consultation ranged from a few days to 20 years. Psychiatric comorbidity was noted in 30.6% of the cases. In 55.6% of 124 cases, we observed a psychological background. It was a childhood trauma in 15.3% of these cases. In one-third of the 124 situations, we noted an underlying somatic or social condition. Facilitation conditions were frequently mixed. Somatic and/or psychological conditions were noted in one-third of the 124 cases and social conditions in half of them. The neurologist is faced with the challenge of naming the symptom (most often labelled a functional disorder) and of making the decision to stop or limit investigations. Visits by patients with psychogenic disorders make up a significant percentage of neurology speciality appointments. The neurologist should not limit the consultation to differentiating "real" symptoms from psychogenic somatoform disorders, but should also propose a straightforward compassionate approach for effective therapeutic care. By carefully listening to the patient's dialogue, the neurologist can help the patient give meaning to the symptoms, and progress towards improved well-being.

  16. Art, evolution, and history: a case study of paradigm change in anthropology.

    PubMed

    Thoresen, T H

    1977-04-01

    An ethnological controversy over the origin and evolution of decorative art is documented for the period 1896-1904 and is used to test the relevance in anthropology of Thomas Kuhn's outline of the structure of scientific revolutions. Using a combination of archival materials and content analysis of professional periodicals, both the appropriateness and the limitations of Kuhn's scheme are explored. The conclusion is that paradigms and scientific revolutions are valid and useful concepts for use in the history of anthropology, but that for the particular period under study they are insufficient. Nonparadigmatic aspects of anthropology's supporting communities must also be considered, especially anthropology's "permeable boundaries".

  17. Craniotomy: the first case histories.

    PubMed

    Martin

    1999-07-01

    The oldest existing case histories of craniotomy are from the false Hippocratic writings, about 330 BC, and one is reconstructed about the death of Ptolemy VI in 145 BC. Greek surgeons had rational indications for trepanning, when the difficulties of the times are understood. All compound fractures were infected, so death from an extradural abscess was likely. Trepanning was intended to drain the extra dural space. Copyright 1999 Harcourt Publishers Ltd.

  18. Risk of physical assault against school educators with histories of occupational and other violence: a case-control study.

    PubMed

    Nachreiner, Nancy M; Gerberich, Susan G; Ryan, Andrew D; Erkal, Sibel; McGovern, Patricia M; Church, Timothy R; Mongin, Steven J; Feda, Denise M

    2012-01-01

    A case-control study design was used to investigate risks of work-related physical assault (PA) associated with a history of violent victimization among educators. A total of 6,469 state-licensed educators (Kindergarten - Grade 12) worked in the previous 12~months and were eligible to participate. Exposure data were collected from cases (reporting a PA event in previous 12 months, n=290) for the month before PA, and from controls (no work-related PA in previous 12 months; n=867) for a randomly selected working month. Odds ratios and 95% confidence intervals identified increased risks for educators with any prior history of work-related (17.3, 11.4-26.3) or non-work-related PA (2.0, 1.2-3.5). In addition, PA risk in the previous twelve months increased with the number of previous victimizations, and risk also increased for educators with histories of non-physical violence (work- and non work-related). The results present a compelling case for targeted interventions and further research.

  19. Writing history: case study of the university of Victoria School of Nursing.

    PubMed

    Scaia, Margaret R; Young, Lynne

    2013-04-23

    A historical examination of a nursing curriculum is a bridge between past and present from which insights to guide curriculum development can be gleaned. In this paper, we use the case study method to examine how the University of Victoria School of Nursing (UVic SON), which was heavily influenced by the ideology of second wave feminism, contributed to a change in the direction of nursing education from task-orientation to a content and process orientation. This case study, informed by a feminist lens, enabled us to critically examine the introduction of a "revolutionary" caring curriculum at the UVic SON. Our research demonstrates the fault lines and current debates within which a feminist informed curriculum continues to struggle for legitimacy and cohesion. More work is needed to illuminate the historical basis of these debates and to understand more fully the complex landscape that has constructed the social and historical position of women and nursing in Canadian society today.

  20. The Potential of Crater Size Frequency Distributions for Deriving Erosion Histories: A Case Study on Mars

    NASA Astrophysics Data System (ADS)

    Wulf, G.; Hergarten, S.; Kenkmann, T.

    2015-09-01

    A recently developed software tool allows for the prediction of the impact crater record based on a given history of erosion and deposition. A first application to pedestal craters in the Medusae Fossae formation on Mars yields promising results.

  1. Towards a History of Moral Education: Some Fundamental Considerations and a Case Study

    ERIC Educational Resources Information Center

    Bruneau, William Arthur

    1975-01-01

    Presents definitions and understandings of moral education, surveys some historical techniques likely to yield starting points for work on a history of moral education, and examines John Locke's theory and practice of moral education. (Author/IRT)

  2. History of chickenpox in glioma risk: a report from the glioma international case-control study (GICC).

    PubMed

    Amirian, E Susan; Scheurer, Michael E; Zhou, Renke; Wrensch, Margaret R; Armstrong, Georgina N; Lachance, Daniel; Olson, Sara H; Lau, Ching C; Claus, Elizabeth B; Barnholtz-Sloan, Jill S; Il'yasova, Dora; Schildkraut, Joellen; Ali-Osman, Francis; Sadetzki, Siegal; Jenkins, Robert B; Bernstein, Jonine L; Merrell, Ryan T; Davis, Faith G; Lai, Rose; Shete, Sanjay; Amos, Christopher I; Melin, Beatrice S; Bondy, Melissa L

    2016-06-01

    Varicella zoster virus (VZV) is a neurotropic α-herpesvirus that causes chickenpox and establishes life-long latency in the cranial nerve and dorsal root ganglia of the host. To date, VZV is the only virus consistently reported to have an inverse association with glioma. The Glioma International Case-Control Study (GICC) is a large, multisite consortium with data on 4533 cases and 4171 controls collected across five countries. Here, we utilized the GICC data to confirm the previously reported associations between history of chickenpox and glioma risk in one of the largest studies to date on this topic. Using two-stage random-effects restricted maximum likelihood modeling, we found that a positive history of chickenpox was associated with a 21% lower glioma risk, adjusting for age and sex (95% confidence intervals (CI): 0.65-0.96). Furthermore, the protective effect of chickenpox was stronger for high-grade gliomas. Our study provides additional evidence that the observed protective effect of chickenpox against glioma is unlikely to be coincidental. Future studies, including meta-analyses of the literature and investigations of the potential biological mechanism, are warranted.

  3. Recovering Lost Histories of Educational Design: A Case Study in Contemporary Participatory Strategies

    ERIC Educational Resources Information Center

    Burke, Catherine; Könings, Karen D.

    2016-01-01

    Past practices shape and limit the design imagination of teachers, pupils, parents, governors, and others concerned with designing modern schools. Bringing histories of education to the table in the participatory design process of new school buildings and curricula is necessary. Schools having an extraordinary past have the potential to draw from…

  4. Space-Time Clustering of Non-Hodgkin Lymphoma Using Residential Histories in a Danish Case-Control Study

    PubMed Central

    Baastrup Nordsborg, Rikke; Meliker, Jaymie R.; Kjær Ersbøll, Annette; Jacquez, Geoffrey M.; Raaschou-Nielsen, Ole

    2013-01-01

    Non-Hodgkin lymphoma (NHL) is a frequent cancer and incidence rates have increased markedly during the second half of the 20th century; however, the few established risk factors cannot explain this rise and still little is known about the aetiology of NHL. Spatial analyses have been applied in an attempt to identify environmental risk factors, but most studies do not take human mobility into account. The aim of this study was to identify clustering of NHL in space and time in Denmark, using 33 years of residential addresses. We utilised the nation-wide Danish registers and unique personal identification number that all Danish citizens have to conduct a register-based case-control study of 3210 NHL cases and two independent control groups of 3210 each. Cases were identified in the Danish Cancer Registry and controls were matched by age and sex and randomly selected from the Civil Registration System. Residential addresses of cases and controls from 1971 to 2003 were collected from the Civil Registration System and geocoded. Data on pervious hospital diagnoses and operations were obtained from the National Patient Register. We applied the methods of the newly developed Q-statistics to identify space-time clustering of NHL. All analyses were conducted with each of the two control groups, and we adjusted for previous history of autoimmune disease, HIV/AIDS or organ transplantation. Some areas with statistically significant clustering were identified; however, results were not consistent across the two control groups; thus we interpret the results as chance findings. We found no evidence for clustering of NHL in space and time using 33 years of residential histories, suggesting that if the rise in incidence of NHL is a result of risk factors that vary across space and time, the spatio-temporal variation of such factors in Denmark is too small to be detected with the applied method. PMID:23560108

  5. Exploring Gaps of Family History Documentation in EHR for Precision Medicine -A Case Study of Familial Hypercholesterolemia Ascertainment

    PubMed Central

    Mehrabi, Saeed; Wang, Yanshan; Ihrke, Donna; Liu, Hongfang

    2016-01-01

    In the era of precision medicine, accurately identifying familial conditions is crucial for providing target treatment. However, it is challenging to identify familial conditions without detailed family history information. In this work, we studied the documentation of family history of premature cardiovascular disease and hypercholesterolemia. The information on patients’ family history of stroke within the Patient-provided information (PPI) forms was compared with the information gathered by clinicians in clinical notes. The agreement between PPI and clinical notes on absence of family history information in PPI was substantially higher compared to presence of family history. PMID:27570664

  6. A case study of systemic curricular reform: A forty-year history

    NASA Astrophysics Data System (ADS)

    Laubach, Timothy Alan

    What follows is a description of the development of a particular inquiry-based elementary school science curriculum program and how its theoretical underpinnings positively influenced a school district's (K-12) science program and also impacted district- and state-wide curriculum reform initiatives. The district's science program has evolved since the inception of the inquiry-based elementary school science curriculum reform forty years ago. Therefore, a historical case study, which incorporated grounded theory methodology, was used to convey the forty-year development of a science curriculum reform effort and its systemic influences. Data for this study were collected primarily through artifacts, such as technical and non-technical documents, and supported and augmented with interviews. Fifteen people comprised the interview consortium with professional responsibilities including (a) administrative roles, such as superintendents, assistant superintendents, principals, and curriculum consultants/coordinators; (b) classroom roles, such as elementary and secondary school teachers who taught science; (c) partnership roles, such as university faculty who collaborated with those in administrative and classroom positions within the district; and (d) the co-director of SCIS who worked with the SCIS trial center director. Data were analyzed and coded using the constant comparative method. The analysis of data uncovered five categories or levels in which the curriculum reform evolved throughout its duration. These themes are Initiation, Education, Implementation, Confirmation, and Continuation. These five categories lead to several working hypotheses that supported the sustaining and continuing of a K-12 science curriculum reform effort. These components are a committed visionary; a theory base of education; forums promoting the education of the theory base components; shared-decision making; a university-school partnership; a core group of committed educators and teachers

  7. Stress history controls the spatial pattern of aftershocks: case studies from strike-slip earthquakes

    NASA Astrophysics Data System (ADS)

    Utkucu, Murat; Durmuş, Hatice; Nalbant, Süleyman

    2016-09-01

    Earthquake ruptures perturb stress within the surrounding crustal volume and as it is widely accepted now these stress perturbations strongly correlates with the following seismicity. Here we have documented five cases of the mainshock-aftershock sequences generated by the strike-slip faults from different tectonic environments of world in order to demonstrate that the stress changes resulting from large preceding earthquakes decades before effect spatial distribution of the aftershocks of the current mainshocks. The studied mainshock-aftershock sequences are the 15 October 1979 Imperial Valley earthquake (Mw = 6.4) in southern California, the 27 November 1979 Khuli-Boniabad (Mw = 7.1), the 10 May 1997 Qa'enat (Mw = 7.2) and the 31 March 2006 Silakhor (Mw = 6.1) earthquakes in Iran and the 13 March 1992 Erzincan earthquake (Mw = 6.7) in Turkey. In the literature, we have been able to find only these mainshocks that are mainly characterized by dense and strong aftershock activities along and beyond the one end of their ruptures while rare aftershock occurrences with relatively lower magnitude reported for the other end of their ruptures. It is shown that the stress changes resulted from earlier mainshock(s) that are close in both time and space might be the reason behind the observed aftershock patterns. The largest aftershocks of the mainshocks studied tend to occur inside the stress-increased lobes that were also stressed by the background earthquakes and not to occur inside the stress-increased lobes that fall into the stress shadow of the background earthquakes. We suggest that the stress shadows of the previous mainshocks may persist in the crust for decades to suppress aftershock distribution of the current mainshocks. Considering active researches about use of the Coulomb stress change maps as a practical tool to forecast spatial distribution of the upcoming aftershocks for earthquake risk mitigation purposes in near-real time, it is further suggested that

  8. The star formation history of low-mass disk galaxies: A case study of NGC 300

    NASA Astrophysics Data System (ADS)

    Kang, Xiaoyu; Zhang, Fenghui; Chang, Ruixiang; Wang, Lang; Cheng, Liantao

    2016-01-01

    Context. Since NGC 300 is a bulgeless, isolated low-mass galaxy and it has not experienced radial migration during its evolution history, it can be treated as an ideal laboratory to test the simple galactic chemical evolution model. Aims: Our main aim is to investigate the main properties of the star formation history (SFH) of NGC 300 and compare its SFH with that of M 33 to explore the common properties and differences between these two nearby low-mass systems. Methods: We construct a simple chemical evolution model for NGC 300, assuming its disk forms gradually from continuous accretion of primordial gas and including the gas-outflow process. The model allows us to build a bridge between the SFH and observed data of NGC 300, in particular, the present-day radial profiles and global observed properties (e.g., cold gas mass, star formation rate, and metallicity). By means of comparing the model predictions with the corresponding observations, we adopt the classical χ2 methodology to find out the best combination of free parameters a, b, and bout. Results: Our results show that by assuming an inside-out formation scenario and an appropriate outflow rate, our model reproduces well most of the present-day observational values. The model not only reproduces well the radial profiles, but also the global observational data for the NGC 300 disk. Our results suggest that NGC 300 may experience a rapid growth of its disk. Through comparing the best-fitting, model-predicted SFH of NGC 300 with that of M 33, we find that the mean stellar age of NGC 300 is older than that of M 33 and there is a recent lack of primordial gas infall onto the disk of NGC 300. Our results also imply that the local environment may play a key role in the secular evolution of galaxy disks.

  9. Case Study Teaching

    ERIC Educational Resources Information Center

    Herreid, Clyde Freeman

    2011-01-01

    This chapter describes the history of case study teaching, types of cases, and experimental data supporting their effectiveness. It also describes a model for comparing the efficacy of the various case study methods. (Contains 1 figure.)

  10. Association of history of allergies and influenza-like infections with laryngeal cancer in a case-control study.

    PubMed

    Filippidis, Filippos T; Schwartz, Stephen M; Becker, Nikolaus; Dyckhoff, Gerhard; Kirschfink, Michael; Dietz, Andreas; Becher, Heiko; Ramroth, Heribert

    2015-08-01

    Prior studies suggest that history of allergy and infections early in life might be inversely associated with cancer. We explored the association between allergies, recent influenza infections and laryngeal cancer risk. We used data from a case-control study which included 229 cases of laryngeal cancer and 769 population controls matched for age and sex. History of a physician-diagnosed allergy, influenza-like infections in the past 5 years, smoking, alcohol consumption and occupational exposure to carcinogens were self-reported. Allergies were classified into two groups (Type I and Type IV), according to the underlying immunologic mechanism. Conditional logistic regression models were fitted using laryngeal cancer as the outcome, adjusting for smoking, alcohol consumption and occupational exposure and stratified for age and sex. Having any allergy was not associated significantly with laryngeal cancer. Although Type I and Type IV allergies were non-significantly associated with laryngeal cancer, Type IV allergies showed a strong inverse association after adjusting for smoking and alcohol (OR 0.50, 95 % CI 0.22-1.2). Participants who reported at least one influenza-like infection during the past 5 years were significantly less likely to have laryngeal cancer (OR 0.57, 95 % CI 0.39-0.81). After considering fever (≥38.5 °C) as a criterion for influenza infection, the association between influenza infection and laryngeal cancer was even stronger (OR 0.29, 95 % CI 0.13-0.63). We found no significant association between any allergy and laryngeal cancer, some indication of an inverse association between Type IV allergy and laryngeal cancer, whereas recent influenza infections were inversely associated with laryngeal cancer risk.

  11. Epidemiology of sociodemographic characteristics, lifestyle, medical history, and colon cancer: a case-control study among French Canadians in Montreal.

    PubMed

    Ghadirian, P; Maisonneuve, P; Perret, C; Lacroix, A; Boyle, P

    1998-01-01

    Colon cancer is the second most common cancer in both men and women in North America and other developed countries. In a population-based case-control study of colon cancer among French Canadians in greater Montreal, a total of 402 cases and 668 controls were interviewed. The cancer cases were identified through the admission offices of five major Francophone teaching hospitals in Montreal from 1989 to 1993. The controls, matched by age, sex, place of residence, and language, were selected by a modified random digit dialing method. The results show that subjects who had ever been married had a lower risk for colon cancer (odds ratio [OR]: 0.58; 95% confidence interval [95% CI]: 0.48-0.84) than did individuals who had never been married. A significant association (OR: 1.90; p for trend = 0.003) was found between the height of subjects and the risk of colon cancer. The OR for individuals with a family history of colorectal cancer was 2.78 with a p value of 0.01. A direct and significant association (OR: 2.01) was found among constipation, use of laxatives (OR: 1.41), and the risk of colon cancer. Among women, a suggestive inverse association was detected between the number of full-term pregnancies and the risk of colon cancer in female subjects (the OR for five or more pregnancies was 0.58 with a p for trend of 0.08). There was also a suggestive linear trend (increased age-decreased risk) between age at menarche and the risk of colon cancer. No association was apparent between other sociodemographic characteristics and the risk of colon cancer. In conclusion, married individuals had lower risk for colon cancer, perhaps due to food habits or other characteristics of being single. Higher height and weight history 10 years before the diagnosis of cancer are risk factors for breast cancer, while both current weight and body mass index seem to be protective. Positive family history of colon cancer increased the risk of colon cancer significantly.

  12. The Case for "Big History."

    ERIC Educational Resources Information Center

    Christian, David

    1991-01-01

    Urges an approach to the teaching of history that takes the largest possible perspective, crossing time as well as space. Discusses the problems and advantages of such an approach. Describes a course on "big" history that begins with time, creation myths, and astronomy, and moves on to paleontology and evolution. (DK)

  13. Just One of the Boys? A Life History Case Study of a Male Physical Education Teacher

    ERIC Educational Resources Information Center

    Wedgwood, Nikki

    2005-01-01

    Studies of physical education teacher training have already established that hegemonic forms of masculinity are reinforced and reproduced both in the hidden curriculum (Flintoff, 1997) and the informal student culture (Skelton, 1993). Given this, an important feminist concern is whether male PE teachers whose own masculine identities are anchored…

  14. Teaching Traumatic History to Young Children: The Case of Holocaust Studies in Israeli Kindergartens

    ERIC Educational Resources Information Center

    Ziv, Yair; Golden, Deborah; Goldberg, Tsafrir

    2015-01-01

    Recently, the Israeli Ministry of Education initiated a mandatory nationwide curriculum for Jewish kindergarten children focusing on the study of the Holocaust. This initiative raises general questions regarding the inclusion of sensitive historical issues in curricula for young children. In this article, we use the new Holocaust curriculum as an…

  15. From Cottages to Corporations: A Case Study in American History. Perspectives.

    ERIC Educational Resources Information Center

    Procter and Gamble Educational Services, Cincinnati, OH.

    This study unit, one in a series of eight, gives students examples of: (1) how a major business began in the mid-nineteenth century; (2) why and how individuals joined in financing and sharing in the growth of such a firm; and (3) how trademarks and brand names were adopted as a symbol that a firm stood behind and took pride in its goods and…

  16. Temporal Visualization for Legal Case Histories.

    ERIC Educational Resources Information Center

    Harris, Chanda; Allen, Robert B.; Plaisant, Catherine; Shneiderman, Ben

    1999-01-01

    Discusses visualization of legal information using a tool for temporal information called "LifeLines." Explores ways "LifeLines" could aid in viewing the links between original case and direct and indirect case histories. Uses the case of Apple Computer, Inc. versus Microsoft Corporation and Hewlett Packard Company to…

  17. The Case for Digitizing Fiction with History.

    ERIC Educational Resources Information Center

    Shires, Nancy Patterson

    2002-01-01

    Including relevant fiction along with digitized history helps the reader to deal effectively with the various letters, photos, and census records or the individual pieces of history revealed. For educational, social, psychological, and biological reasons, fiction is important in the study of history. Not only can novels and stories be valuable…

  18. Lesson Study and History Education

    ERIC Educational Resources Information Center

    Halvorsen, Anne-Lise; Kesler Lund, Alisa

    2013-01-01

    This article examines the experiences of a group of fifth-grade teachers who used lesson study, a teacher-driven form of professional development, to teach history in a project supported by a Teaching American History Grant. The project addressed the following questions: What does a lesson study cycle for history education look like? What…

  19. Winnipegosis case history: Tableland Saskatchewan

    SciTech Connect

    Orr, N.E.; Martindale, W.

    1988-02-01

    The geology and history of exploration in the Tableland area of southeast Saskatchewan will be reviewed in relation to a major Middle Devonian Winnipegosis oil discovery made in 1986 by Home Oil. Southern Saskatchewan is underlain by the northern third of the Williston basin. Although rich oil deposits have been found in the Devonian of the basin on the American side, dry holes have been the rule in Saskatchewan except for the Hummingbird Upper Devonian Birdbear discovery in 1966. The long history of failures in the Winnipegosis Formation had led to a general reluctance in the industry to drill deep wells especially with today's lower crude prices. Based on geology, seismic data, and modeling, Home Oil drilled Tableland 08-22-002-09W2M in february 1986 and encountered an oil-bearing Winnipegosis reef. This well has the highest production rate of any well in Saskatchewan and is the first commercially significant Winnipegosis well in a basinal setting within the Williston basin. A state-of-the-art pseudo 3-D processing of all the existing 2-D seismic data was performed to aid in choosing development well locations. As a result of this discovery, deep exploration plays in southeast Saskatchewan are now being pursued aggressively by many companies.

  20. Understanding invasion history and predicting invasive niches using genetic sequencing technology in Australia: case studies from Cucurbitaceae and Boraginaceae.

    PubMed

    Shaik, Razia S; Zhu, Xiaocheng; Clements, David R; Weston, Leslie A

    2016-01-01

    Part of the challenge in dealing with invasive plant species is that they seldom represent a uniform, static entity. Often, an accurate understanding of the history of plant introduction and knowledge of the real levels of genetic diversity present in species and populations of importance is lacking. Currently, the role of genetic diversity in promoting the successful establishment of invasive plants is not well defined. Genetic profiling of invasive plants should enhance our understanding of the dynamics of colonization in the invaded range. Recent advances in DNA sequencing technology have greatly facilitated the rapid and complete assessment of plant population genetics. Here, we apply our current understanding of the genetics and ecophysiology of plant invasions to recent work on Australian plant invaders from the Cucurbitaceae and Boraginaceae. The Cucurbitaceae study showed that both prickly paddy melon (Cucumis myriocarpus) and camel melon (Citrullus lanatus) were represented by only a single genotype in Australia, implying that each was probably introduced as a single introduction event. In contrast, a third invasive melon, Citrullus colocynthis, possessed a moderate level of genetic diversity in Australia and was potentially introduced to the continent at least twice. The Boraginaceae study demonstrated the value of comparing two similar congeneric species; one, Echium plantagineum, is highly invasive and genetically diverse, whereas the other, Echium vulgare, exhibits less genetic diversity and occupies a more limited ecological niche. Sequence analysis provided precise identification of invasive plant species, as well as information on genetic diversity and phylogeographic history. Improved sequencing technologies will continue to allow greater resolution of genetic relationships among invasive plant populations, thereby potentially improving our ability to predict the impact of these relationships upon future spread and better manage invaders possessing

  1. Understanding invasion history and predicting invasive niches using genetic sequencing technology in Australia: case studies from Cucurbitaceae and Boraginaceae

    PubMed Central

    Shaik, Razia S.; Zhu, Xiaocheng; Clements, David R.; Weston, Leslie A.

    2016-01-01

    Part of the challenge in dealing with invasive plant species is that they seldom represent a uniform, static entity. Often, an accurate understanding of the history of plant introduction and knowledge of the real levels of genetic diversity present in species and populations of importance is lacking. Currently, the role of genetic diversity in promoting the successful establishment of invasive plants is not well defined. Genetic profiling of invasive plants should enhance our understanding of the dynamics of colonization in the invaded range. Recent advances in DNA sequencing technology have greatly facilitated the rapid and complete assessment of plant population genetics. Here, we apply our current understanding of the genetics and ecophysiology of plant invasions to recent work on Australian plant invaders from the Cucurbitaceae and Boraginaceae. The Cucurbitaceae study showed that both prickly paddy melon (Cucumis myriocarpus) and camel melon (Citrullus lanatus) were represented by only a single genotype in Australia, implying that each was probably introduced as a single introduction event. In contrast, a third invasive melon, Citrullus colocynthis, possessed a moderate level of genetic diversity in Australia and was potentially introduced to the continent at least twice. The Boraginaceae study demonstrated the value of comparing two similar congeneric species; one, Echium plantagineum, is highly invasive and genetically diverse, whereas the other, Echium vulgare, exhibits less genetic diversity and occupies a more limited ecological niche. Sequence analysis provided precise identification of invasive plant species, as well as information on genetic diversity and phylogeographic history. Improved sequencing technologies will continue to allow greater resolution of genetic relationships among invasive plant populations, thereby potentially improving our ability to predict the impact of these relationships upon future spread and better manage invaders possessing

  2. Helicopter internal noise control: Three case histories

    NASA Technical Reports Server (NTRS)

    Edwards, B. D.; Cox, C. R.

    1978-01-01

    Case histories are described in which measurable improvements in the cabin noise environments of the Bell 214B, 206B, and 222 were realized. These case histories trace the noise control efforts followed in each vehicle. Among the design approaches considered, the addition of a fluid pulsation damper in a hydraulic system and the installation of elastomeric engine mounts are highlighted. It is concluded that substantial weight savings result when the major interior noise sources are controlled by design, both in altering the noise producing mechanism and interrupting the sound transmission paths.

  3. Narrative and evidence. How can case studies from the history of science support claims in the philosophy of science?

    PubMed

    Kinzel, Katherina

    2015-02-01

    A common method for warranting the historical adequacy of philosophical claims is that of relying on historical case studies. This paper addresses the question as to what evidential support historical case studies can provide to philosophical claims and doctrines. It argues that in order to assess the evidential functions of historical case studies, we first need to understand the methodology involved in producing them. To this end, an account of historical reconstruction that emphasizes the narrative character of historical accounts and the theory-laden character of historical facts is introduced. The main conclusion of this paper is that historical case studies are able to provide philosophical claims with some evidential support, but that, due to theory-ladenness, their evidential import is restricted.

  4. Case History: The Spelman College Endowment

    ERIC Educational Resources Information Center

    Commonfund Institute, 2009

    2009-01-01

    This white paper presents a case history of the Spelman College endowment and how good financial management and alternative strategies for the growth of the endowment has made Spelman's one of the largest among U.S. Historically Black Colleges and Universities (HBCUs). How has Spelman College been able to grow its endowment funds to this level? A…

  5. The Image of the 1967 War in Israeli History Textbooks as Test Case: Studying an Active Past in a Protracted Regional Conflict

    ERIC Educational Resources Information Center

    Yogev, Esther

    2012-01-01

    This article seeks to shed light on the dilemma facing history education in regions beset by a protracted, and as yet unresolved ethno-political conflict. The article will examine this issue by means of a unique test case that observes a dramatic war event in Israeli textbooks. The event in question is the Six-Day War of 1967 and the study of its…

  6. Life-history phenology strongly influences population vulnerability to toxicants: a case study with the mudsnail Potamopyrgus antipodarum.

    PubMed

    Coulaud, Romain; Mouthon, Jacques; Quéau, Hervé; Charles, Sandrine; Chaumot, Arnaud

    2013-08-01

    One of the main objectives of ecological risk assessment is to evaluate the effects of toxicants on ecologically relevant biological systems such as populations or communities. However, the effects of toxicants are commonly measured on selected subindividual or individual endpoints due to their specificity against chemical stressors. Introducing these effects into population models is a promising way to predict impacts on populations. The models currently employed are very simplistic, and their environmental relevance needs to be improved to establish the ecological relevance of hazard assessment. The present study with the gastropod Potamopyrgus antipodarum combines a field experimental approach with a modeling framework. It clarifies the role played by seasonal variability of life-history traits in the population's vulnerability to the alteration of individual performance, potentially due to toxic stress. The present study comprised 3 steps: 1) characterization of the seasonal variability in life-history traits of a local population over 1 yr by using in situ experiments on caged snails, coupled with a demographic follow-up; 2) development of a periodic matrix population model that visualizes the monthly variability of population dynamics; and 3) simulation of the demographic consequences of an alteration in life-history traits (i.e., fertility, juvenile, and adult survival). The results revealed that demographic impacts strongly depend on the season when alterations of individual performance occur. Model analysis showed that this seasonal variability in population vulnerability is strongly related to the phenology of the population. The authors emphasize that improving the realism of population models is a major objective for ecological risk assessment, and that taking into account species phenology in modeling approaches should be a priority.

  7. Elements of War and Peace in History Education in the US and Japan: A Case Study Comparison

    ERIC Educational Resources Information Center

    Langager, Mark

    2009-01-01

    History praxis can transform perceptions of the "other" by reshaping ideas about events transpiring between groups. Nevertheless, peace education research has rarely examined history teaching. This article addresses the potential for teaching peace through history teaching. After laying out a conceptual framework for understanding the…

  8. Cadmium exposure and risk of pancreatic cancer: A meta-analysis of prospective cohort studies and case-control studies among individuals without occupational exposure history

    PubMed Central

    Chen, Cheng; Xun, Pengcheng; Nishijo, Muneko; Sekikawa, Akira

    2015-01-01

    Pancreatic cancer is one of the most deadly types of cancer for both genders. Classified as a human carcinogen, cadmium has been related to diverse cancers. However, the association between cadmium exposure and the risk of pancreatic cancer is still unclear. We quantitatively reviewed the observational studies on the association of cadmium exposure with pancreatic cancer risk among individuals without occupational exposure history published through July 2014 in PubMed by using a fixed–effects model. Four prospective cohort studies (112,934 participants with 335 events) and two case-control studies (177 cases and 539 controls) were identified. The summarized relative risk (RR) with a 95% confidence interval (CI) was 2.05 (95% CI=1.58 – 2.66), comparing the highest to the lowest category of cadmium exposure. This positive association persisted in men (RR=1.78; 95% CI=1.04 – 3.05), but not in women (RR=1.02; 95% CI=0.63 – 1.65). Further research is needed to provide more solid evidence on the association of cadmium exposure with pancreatic cancer risk and to elucidate the underlying biological mechanism of the potential gender difference. PMID:26423282

  9. Cadmium exposure and risk of pancreatic cancer: a meta-analysis of prospective cohort studies and case-control studies among individuals without occupational exposure history.

    PubMed

    Chen, Cheng; Xun, Pengcheng; Nishijo, Muneko; Sekikawa, Akira; He, Ka

    2015-11-01

    Pancreatic cancer is one of the most deadly types of cancer for both genders. Classified as a human carcinogen, cadmium has been related to diverse cancers. However, the association between cadmium exposure and the risk of pancreatic cancer is still unclear. We quantitatively reviewed the observational studies on the association of cadmium exposure with pancreatic cancer risk among individuals without occupational exposure history published through July 2014 in PubMed by using a fixed-effect model. Four prospective cohort studies (112,934 participants with 335 events) and two case-control studies (177 cases and 539 controls) were identified. The summarized relative risk (RR) with a 95% confidence interval (CI) was 2.05 (95% CI = 1.58-2.66), comparing the highest to the lowest category of cadmium exposure. This positive association persisted in men (RR = 1.78, 95% CI = 1.04-3.05) but not in women (RR = 1.02, 95% CI = 0.63-1.65). Further research is needed to provide more solid evidence on the association of cadmium exposure with pancreatic cancer risk and to elucidate the underlying biological mechanism of the potential gender difference.

  10. Potential pitfalls of reconstructing deep time evolutionary history with only extant data, a case study using the canidae (mammalia, carnivora).

    PubMed

    Finarelli, John A; Goswami, Anjali

    2013-12-01

    Reconstructing evolutionary patterns and their underlying processes is a central goal in biology. Yet many analyses of deep evolutionary histories assume that data from the fossil record is too incomplete to include, and rely solely on databases of extant taxa. Excluding fossil taxa assumes that character state distributions across living taxa are faithful representations of a clade's entire evolutionary history. Many factors can make this assumption problematic. Fossil taxa do not simply lead-up to extant taxa; they represent now-extinct lineages that can substantially impact interpretations of character evolution for extant groups. Here, we analyze body mass data for extant and fossil canids (dogs, foxes, and relatives) for changes in mean and variance through time. AIC-based model selection recovered distinct models for each of eight canid subgroups. We compared model fit of parameter estimates for (1) extant data alone and (2) extant and fossil data, demonstrating that the latter performs significantly better. Moreover, extant-only analyses result in unrealistically low estimates of ancestral mass. Although fossil data are not always available, reconstructions of deep-time organismal evolution in the absence of deep-time data can be highly inaccurate, and we argue that every effort should be made to include fossil data in macroevolutionary studies.

  11. Petrogenesis and geological history of a uranium source rock: a case study in northeastern Washington, U.S.A.

    USGS Publications Warehouse

    Zielinski, R.A.; Burruss, R.C.

    1991-01-01

    A small (4 km2) drainage basin in northeastern Washington contains highly uraniferous groundwater and highly uraniferous peaty sediments of Holocene age. The U is derived from granitic bedrock that underlies the entire drainage basin and that contains 9-16 ppm U. This local bedrock was studied by petrographic, chemical and isotopic methods to determine conditions of its petrogenesis and post-emplacement history that may have contributed to its present high U content and source-rock capability. The original magma was derived by anatexis of Precambrian continental crust of probable mixed metaigneous and metasedimentary character. Mineral-melt partitioning controlled the enrichment of U in chemically evolved phases of the crystallizing melt. Following emplacement in the upper crust at ???100 Ma, the pluton interacted with meteoric-hydrothermal water at ambient temperatures >300??C. Locally intense fracturing promoted alteration, and fracturing and alteration probably continued during later regional uplift in the Eocene. Regional uplift was followed by low-temperature alteration and weathering in the middle to late Tertiary. The combined result of hydrothermal alteration and low-temperature alteration and weathering was the redistribution of U from primary mineral hosts such as allanite to new sites on fracture surfaces and in secondary minerals such as hematite. Zones of highly fractured and altered rock show the most obvious evidence of this process. A model is proposed in which high-angle fractures beneath the drainage basin were the sites of Tertiary supergene enrichments of U. Recent glacio-isostatic uplift has elevated these older enriched zones to shallow levels where they are now being leached by oxidizing groundwater. The chemistry, mineralogy, texture and geological history of this U source-rock suggest criteria for locating other granitic terrane that may contain uraniferous waters and associated young surficial U deposits. The details of U distribution and

  12. Reconstructing Land Use History from Landsat Time-Series. Case study of Swidden Agriculture Intensification in Brazil

    NASA Astrophysics Data System (ADS)

    Dutrieux, L.; Jakovac, C. C.; Siti, L. H.; Kooistra, L.

    2015-12-01

    land use history mapping in the tropics and beyond. Spatial and temporal patterns were further analysed with an ecological perspective in a follow-up study. Results show that changes in land use patterns such as land use intensification and reduced agricultural expansion reflect the socio-economic transformations that occurred in the region

  13. Reconstructing land use history from Landsat time-series. Case study of a swidden agriculture system in Brazil

    NASA Astrophysics Data System (ADS)

    Dutrieux, Loïc P.; Jakovac, Catarina C.; Latifah, Siti H.; Kooistra, Lammert

    2016-05-01

    We developed a method to reconstruct land use history from Landsat images time-series. The method uses a breakpoint detection framework derived from the econometrics field and applicable to time-series regression models. The Breaks For Additive Season and Trend (BFAST) framework is used for defining the time-series regression models which may contain trend and phenology, hence appropriately modelling vegetation intra and inter-annual dynamics. All available Landsat data are used for a selected study area, and the time-series are partitioned into segments delimited by breakpoints. Segments can be associated to land use regimes, while the breakpoints then correspond to shifts in land use regimes. In order to further characterize these shifts, we classified the unlabelled breakpoints returned by the algorithm into their corresponding processes. We used a Random Forest classifier, trained from a set of visually interpreted time-series profiles to infer the processes and assign labels to the breakpoints. The whole approach was applied to quantifying the number of cultivation cycles in a swidden agriculture system in Brazil (state of Amazonas). Number and frequency of cultivation cycles is of particular ecological relevance in these systems since they largely affect the capacity of the forest to regenerate after land abandonment. We applied the method to a Landsat time-series of Normalized Difference Moisture Index (NDMI) spanning the 1984-2015 period and derived from it the number of cultivation cycles during that period at the individual field scale level. Agricultural fields boundaries used to apply the method were derived using a multi-temporal segmentation approach. We validated the number of cultivation cycles predicted by the method against in-situ information collected from farmers interviews, resulting in a Normalized Residual Mean Squared Error (NRMSE) of 0.25. Overall the method performed well, producing maps with coherent spatial patterns. We identified

  14. The role of occupation and a past history of malaria in the etiology of classic Kaposi's sarcoma: a case-control study in north-east Sardinia.

    PubMed Central

    Cottoni, F.; Masala, M. V.; Budroni, M.; Rosella, M.; Satta, R.; Locatelli, F.; Montesu, M. A.; De Marco, R.

    1997-01-01

    A case-control study was performed to determine the role of rural factors including occupation and previous malaria exposure in the development of classic Kaposi's sarcoma (CKS) in a high incidence area of Europe. The occurrence of CKS association with other malignancies was also examined. The results showed that the risk of having CKS was significantly increased in subjects farming cereals, while a previous history of malaria did not influence the risk of developing CKS. A near-significant increase in associated tumours was found. PMID:9400951

  15. A Study on the Use of History in Middle School Mathematics: The Case of Connected Mathematics Curriculum

    ERIC Educational Resources Information Center

    Haile, Tesfayohannes Kiflemariam

    2008-01-01

    This dissertation explores the use of history of mathematics in middle school mathematics. A rationale for the importance of the incorporation of historical dimensions (HD) of mathematics is provided through a review of the literature. The literature covers pedagogical, philosophical, psychological, and social issues and provides arguments for the…

  16. The strange case of the Freudian case history: the role of long case histories in the development of psychoanalysis.

    PubMed

    Sealey, Anne

    2011-01-01

    Sigmund Freud's five long case histories have been the focus of seemingly endless fascination and criticism. This article examines how the long case-history genre developed and its impact on the professionalization of psychoanalysis. It argues that the long case histories, using a distinctive form that highlighted the peculiarities of psychoanalytic theory, served as exemplars in the discipline. In doing so, the article extends John Forrester's work on "thinking in cases" to show the practical implications of that style of reasoning. The article illustrates how the form disappeared once the theoretical basis of the movement was set. The genre never became institutionalized, although the content of the five long case histories did, because of Freud's accepted role as theoretician of psychoanalysis.

  17. Role of thermal history in atomic dynamics of chalcogenide glass: A case study on Ge20Te80 glass

    NASA Astrophysics Data System (ADS)

    Sharma, Yashika; Kalra, Geetanjali; Murugavel, Sevi

    2016-05-01

    The non-existence of thermodynamic equilibrium in glasses, their thermal history plays a very crucial role in explaining the relaxation behavior in various time scales and its configurational states. More importantly, the associated relaxation behavior is related mainly to the structural phenomenon of the glasses. Here, we report the dependence of quenching rate on the variation of structural units. The local structures of these glasses are monitored by recording the Raman spectroscopy and related to the different configurational states. The observed variations in structural differences are reflected in the measured density of the corresponding glasses. The quenching rate dependent of the relative fractions of edge-shared and corner-shared GeTe4 tetrahedral units are shown to be consistent with the corresponding variations in the measured density values.

  18. Effects of Including Misidentified Sharks in Life History Analyses: A Case Study on the Grey Reef Shark Carcharhinus amblyrhynchos from Papua New Guinea

    PubMed Central

    Smart, Jonathan J.; Chin, Andrew; Baje, Leontine; Green, Madeline E.; Appleyard, Sharon A.; Tobin, Andrew J.; Simpfendorfer, Colin A.; White, William T.

    2016-01-01

    Fisheries observer programs are used around the world to collect crucial information and samples that inform fisheries management. However, observer error may misidentify similar-looking shark species. This raises questions about the level of error that species misidentifications could introduce to estimates of species’ life history parameters. This study addressed these questions using the Grey Reef Shark Carcharhinus amblyrhynchos as a case study. Observer misidentification rates were quantified by validating species identifications using diagnostic photographs taken on board supplemented with DNA barcoding. Length-at-age and maturity ogive analyses were then estimated and compared with and without the misidentified individuals. Vertebrae were retained from a total of 155 sharks identified by observers as C. amblyrhynchos. However, 22 (14%) of these were sharks were misidentified by the observers and were subsequently re-identified based on photographs and/or DNA barcoding. Of the 22 individuals misidentified as C. amblyrhynchos, 16 (73%) were detected using photographs and a further 6 via genetic validation. If misidentified individuals had been included, substantial error would have been introduced to both the length-at-age and the maturity estimates. Thus validating the species identification, increased the accuracy of estimated life history parameters for C. amblyrhynchos. From the corrected sample a multi-model inference approach was used to estimate growth for C. amblyrhynchos using three candidate models. The model averaged length-at-age parameters for C. amblyrhynchos with the sexes combined were  L¯∞ = 159 cm TL and  L¯0 = 72 cm TL. Females mature at a greater length (l50 = 136 cm TL) and older age (A50 = 9.1 years) than males (l50 = 123 cm TL; A50 = 5.9 years). The inclusion of techniques to reduce misidentification in observer programs will improve the results of life history studies and ultimately improve management through the use of more

  19. Effects of Including Misidentified Sharks in Life History Analyses: A Case Study on the Grey Reef Shark Carcharhinus amblyrhynchos from Papua New Guinea.

    PubMed

    Smart, Jonathan J; Chin, Andrew; Baje, Leontine; Green, Madeline E; Appleyard, Sharon A; Tobin, Andrew J; Simpfendorfer, Colin A; White, William T

    2016-01-01

    Fisheries observer programs are used around the world to collect crucial information and samples that inform fisheries management. However, observer error may misidentify similar-looking shark species. This raises questions about the level of error that species misidentifications could introduce to estimates of species' life history parameters. This study addressed these questions using the Grey Reef Shark Carcharhinus amblyrhynchos as a case study. Observer misidentification rates were quantified by validating species identifications using diagnostic photographs taken on board supplemented with DNA barcoding. Length-at-age and maturity ogive analyses were then estimated and compared with and without the misidentified individuals. Vertebrae were retained from a total of 155 sharks identified by observers as C. amblyrhynchos. However, 22 (14%) of these were sharks were misidentified by the observers and were subsequently re-identified based on photographs and/or DNA barcoding. Of the 22 individuals misidentified as C. amblyrhynchos, 16 (73%) were detected using photographs and a further 6 via genetic validation. If misidentified individuals had been included, substantial error would have been introduced to both the length-at-age and the maturity estimates. Thus validating the species identification, increased the accuracy of estimated life history parameters for C. amblyrhynchos. From the corrected sample a multi-model inference approach was used to estimate growth for C. amblyrhynchos using three candidate models. The model averaged length-at-age parameters for C. amblyrhynchos with the sexes combined were L∞ = 159 cm TL and L0 = 72 cm TL. Females mature at a greater length (l50 = 136 cm TL) and older age (A50 = 9.1 years) than males (l50 = 123 cm TL; A50 = 5.9 years). The inclusion of techniques to reduce misidentification in observer programs will improve the results of life history studies and ultimately improve management through the use of more accurate data

  20. Residential history, family characteristics and non-Hodgkin lymphoma, a population-based case-control study in the San Francisco Bay Area.

    PubMed

    Bracci, Paige M; Dalvi, Tapashi B; Holly, Elizabeth A

    2006-07-01

    A population-based, case-control study (N = 1,593 cases, N = 2,515 controls) was conducted in the San Francisco Bay Area, California, to determine risk factors for non-Hodgkin lymphoma (NHL). This report examines residential characteristics, number of siblings, childhood infections, and allergic rhinitis to evaluate the association between NHL and the hygiene hypothesis. Adjusted unconditional logistic regression analyses included HIV-negative participants (N = 1,304 cases, N = 2,402 controls) ages 21 to 74 years, who completed in-person interviews. At childhood ages, odds ratios (OR) for NHL decreased with increasing number of household rooms (age 8 years, P(trend) = 0.08; age 15 years, P(trend) < 0.0001) and increased with more crowded living conditions (quartiles of no. people/no. rooms; age 8 years, P(trend) < 0.0001; age 15 years, P(trend) = 0.0004), whereas at older ages a greater number of people in the household and greater number of household rooms were positively associated with NHL. ORs increased with increasing number of siblings (P(trend) = 0.0003) and increasing birth order (P(trend) = 0.01). Participants with five or more younger siblings had a 50% increased OR for NHL. ORs for NHL decreased with an increasing number of different infections during childhood (age 8 years, P(trend) < 0.0001; age 15 years, P(trend) = 0.0003) and with history of allergic rhinitis (P < 0.0001). Our results are somewhat consistent with the hygiene hypothesis that less crowding and better sanitation results in fewer infections early in life and an increased incidence of immune-related conditions later in life. The role of the complex relationship between residential history, family characteristics, childhood infections, and immune function in the development of NHL warrants further investigation in pooled analyses.

  1. Characterizing the hypersiliceous rocks of Belgium used in (pre-)history: a case study on sourcing sedimentary quartzites

    NASA Astrophysics Data System (ADS)

    Veldeman, Isis; Baele, Jean-Marc; Goemaere, Eric; Deceukelaire, Marleen; Dusar, Michiel; De Doncker, H. W. J. A.

    2012-08-01

    Tracking raw material back to its extraction source is a crucial step for archaeologists when trying to deduce migration patterns and trade contacts in (pre-)history. Regarding stone artefacts, the main rock types encountered in the archaeological record of Belgium are hypersiliceous rocks. This is a newly introduced category of rock types comprising those rocks made of at least 90% silica. These are strongly silicified quartz sands or sedimentary quartzites, siliceous rocks of chemical and biochemical origin (e.g. flint), very pure metamorphic quartzites and siliceous volcanic rocks (e.g. obsidian). To be able to distinguish between different extraction sources, ongoing research was started to locate possible extraction sources of hypersiliceous rocks and to characterize rocks collected from these sources. Characterization of these hypersiliceous rocks is executed with the aid of optical polarizing microscopy, optical cold cathodoluminescence and scanning-electron microscopy combined with energy-dispersive x-ray spectrometry and with back-scatter electron imaging. In this paper, we focus on various sedimentary quartzites of Paleogene stratigraphical level.

  2. The nurse in the university: a history of university education for South african nurses: a case study of the university of the witwatersrand.

    PubMed

    Horwitz, Simonne

    2011-01-01

    This paper charts the history and debates surrounding the introduction of academic, university-based training of nurses in South Africa. This was a process that was drawn out over five decades, beginning in the late 1930s. For nurses, university training was an important part of a process of professionalization; however, for other members of the medical community, nursing was seen as being linked to women's service work. Using the case-study of the University of the Witwatersrand, one of South Africa's premier universities and the place in the country to offer a university-based nursing program, we argue that an historical understanding of the ways in which nursing education was integrated into the university system tells us a great deal about the professionalization of nursing. This paper also recognises, for the first time, the pioneers of this important process.

  3. The impact of high-resolution biostratigraphy on reservoir prediction and basin history - A Barents Sea case study

    SciTech Connect

    Husmo, T. ); Hochuli, P. )

    1991-08-01

    The Hammerfest Basin is bounded by the Troms-Finnmark Platform to the south and the Loppa High to the north. Twenty-seven exploration wells have been drilled in the basin since 1980. The objective for most of these wells was Middle Jurassic fault blocks. Until recently little attention has been paid to the Upper Jurassic to Lower Cretaceous synrift sequence. The first well drilled on Block 7120/10 tested a rotated Jurassic fault block. This well, together with two wells in an adjacent block, penetrated thin Lower Cretaceous sands near the distal pinch-outs of fault wedges. Seismic data indicated that a basinal wedge of equivalent age was present on Block 7120/10. High risk was put on the presence of sand in this basinal wedge, and a detailed biostratigraphic analysis was performed on wells along the basin margin in order to determine the timing of erosion on the margin and whether the Jurassic-Triassic coarse clastics were present in the provenance area. The analysis separated reworked from in-situ palynomorph assemblages in the synrift succession in the analyzed wells. A clear inverted stratigraphy was displayed by the reworked palynomorphs. Furthermore, a dramatic increase in reworked palynomorphs. Furthermore, a dramatic increase in reworked palynomorphs was observed in all wells at the onset of Valanginian. In particular the presence of Nannoceratopsis gracilis suggested that shallow marine Jurassic clastics were eroded at this time. Sand presence was predicted for the basinal wedge. The understanding of the basin history was also improved. Well 71Z0/10-2 drilled summer 1990 proved the success of the reservoir prediction and hence the usefulness of incorporating biostratigraphy in the assessment.

  4. History Through Biography? A Conceptual Research Study.

    ERIC Educational Resources Information Center

    Johns, Robert W.

    Social studies classroom teachers can enliven high school history courses and motivate students to learn about history by using dramatic or heroic biographies in teaching history. The biographical approach centers on study of the lives, beliefs, and surroundings of historical actors. This approach differs from the "great man" theory of history in…

  5. A Critical Case Study of Selected United States History Textbooks from a Tribal Critical Race Theory Perspective

    ERIC Educational Resources Information Center

    Padgett, Gary

    2012-01-01

    The purpose of this study was to describe and explain the portrayal of American Indians in U.S. textbooks selected for review in Hillsborough County, Florida's 2012 textbook adoption. The study identified which of the textbooks under consideration contained the greatest amount of information dedicated to American Indians. The study then analyzed…

  6. Assessing land-use history for reporting on cropland dynamics - A case study using the Land-Parcel Identification System in Ireland

    NASA Astrophysics Data System (ADS)

    Zimmermann, Jesko; González, Ainhoa; Jones, Michael; O'Brien, Phillip; Stout, Jane C.; Green, Stuart

    2016-04-01

    In developed countries, cropland and grassland conversions and management can be a major factor in Land Use and Land Use Change (LULUC) related Greenhouse Gas (GHG) dynamics. Depending on land use, management and factors such as soil properties land can either act as source or sink for GHGs. Currently many countries depend on national statistics combined with socio-economic modelling to assess current land use as well as inter-annual changes. This potentially introduces a bias as it neither provides information on direct land- use change trajectories nor spatially explicit information to assess the environmental context. In order to improve reporting countries are shifting towards high resolution spatial datasets. In this case study, we used the Land Parcel Identification System (LPIS), a pan-European geographical database developed to assist farmers and authorities with agricultural subsidies, to analyse cropland dynamics in Ireland. The database offer high spatial resolution and is updated annually. Generally Ireland is considered grassland dominated with 90 % of its agricultural area under permanent grassland, and only a small area dedicated to cropland. However an in-depth analysis of the LPIS for the years 2000 to 2012 showed strong underlying dynamics. While the annual area reported as cropland remained relatively constant at 3752.3 ± 542.3 km2, the area of permanent cropland was only 1251.9 km2. Reversely, the area that was reported as cropland for at least one year during the timeframe was 7373.4 km2, revealing a significantly higher area with cropland history than annual statistics would suggest. Furthermore, the analysis showed that one quarter of the land converting from or to cropland will return to the previous land use within a year. To demonstrate potential policy impact, we assessed cropland/grassland dynamics from the 2008 to 2012 commitment period using (a) annual statistics, and (b) data including land use history derived from LPIS. Under

  7. Geothermal systems: Principles and case histories

    NASA Astrophysics Data System (ADS)

    Rybach, L.; Muffler, L. J. P.

    The classification of geothermal systems is considered along with the geophysical and geochemical signatures of geothermal systems, aspects of conductive heat transfer and regional heat flow, and geothermal anomalies and their plate tectonic framework. An investigation of convective heat and mass transfer in hydrothermal systems is conducted, taking into account the mathematical modelling of hydrothermal systems, aspects of idealized convective heat and mass transport, plausible models of geothermal reservoirs, and preproduction models of hydrothermal systems. Attention is given to the prospecting for geothermal resources, the application of water geochemistry to geothermal exploration and reservoir engineering, heat extraction from geothermal reservoirs, questions of geothermal resource assessment, and environmental aspects of geothermal energy development. A description is presented of a number of case histories, taking into account the low enthalpy geothermal resource of the Pannonian Basin in Hungary, the Krafla geothermal field in Northeast Iceland, the geothermal system of the Jemez Mountains in New Mexico, and extraction-reinjection at the Ahuachapan geothermal field in El Salvador.

  8. Case Studies

    ERIC Educational Resources Information Center

    Ritter, Lois A., Ed.; Sue, Valerie M., Ed.

    2007-01-01

    This article presents two case studies using online surveys for evaluation. The authors begin with an example of a needs assessment survey designed to measure the amount of help new students at a university require in their first year. They then discuss the follow-up survey conducted by the same university to measure the effectiveness of the…

  9. Studying Russian and Soviet History.

    ERIC Educational Resources Information Center

    Ascher, Abraham, Ed.

    These essays were written to assist teachers in the task of making Russian history intelligible to young U.S. students. In "An Approach to Russian History," Edward Keenan proposes that students need to gain a better understanding of how Russians perceive themselves and their history. In "Pre-Petrine Russia," Andrzej S. Kaminski…

  10. Pitfalls of the Geographic Population Structure (GPS) Approach Applied to Human Genetic History: A Case Study of Ashkenazi Jews.

    PubMed

    Flegontov, Pavel; Kassian, Alexei; Thomas, Mark G; Fedchenko, Valentina; Changmai, Piya; Starostin, George

    2016-08-16

    In a recent interdisciplinary study, Das et al. have attempted to trace the homeland of Ashkenazi Jews and of their historical language, Yiddish (Das et al. 2016 Localizing Ashkenazic Jews to Primeval Villages in the Ancient Iranian Lands of Ashkenaz. Genome Biol Evol. 8:1132-1149). Das et al. applied the geographic population structure (GPS) method to autosomal genotyping data and inferred geographic coordinates of populations supposedly ancestral to Ashkenazi Jews, placing them in Eastern Turkey. They argued that this unexpected genetic result goes against the widely accepted notion of Ashkenazi origin in the Levant, and speculated that Yiddish was originally a Slavic language strongly influenced by Iranian and Turkic languages, and later remodeled completely under Germanic influence. In our view, there are major conceptual problems with both the genetic and linguistic parts of the work. We argue that GPS is a provenancing tool suited to inferring the geographic region where a modern and recently unadmixed genome is most likely to arise, but is hardly suitable for admixed populations and for tracing ancestry up to 1,000 years before present, as its authors have previously claimed. Moreover, all methods of historical linguistics concur that Yiddish is a Germanic language, with no reliable evidence for Slavic, Iranian, or Turkic substrata.

  11. Pitfalls of the Geographic Population Structure (GPS) Approach Applied to Human Genetic History: A Case Study of Ashkenazi Jews

    PubMed Central

    Flegontov, Pavel; Kassian, Alexei; Thomas, Mark G.; Fedchenko, Valentina; Changmai, Piya; Starostin, George

    2016-01-01

    In a recent interdisciplinary study, Das et al. have attempted to trace the homeland of Ashkenazi Jews and of their historical language, Yiddish (Das et al. 2016. Localizing Ashkenazic Jews to Primeval Villages in the Ancient Iranian Lands of Ashkenaz. Genome Biol Evol. 8:1132–1149). Das et al. applied the geographic population structure (GPS) method to autosomal genotyping data and inferred geographic coordinates of populations supposedly ancestral to Ashkenazi Jews, placing them in Eastern Turkey. They argued that this unexpected genetic result goes against the widely accepted notion of Ashkenazi origin in the Levant, and speculated that Yiddish was originally a Slavic language strongly influenced by Iranian and Turkic languages, and later remodeled completely under Germanic influence. In our view, there are major conceptual problems with both the genetic and linguistic parts of the work. We argue that GPS is a provenancing tool suited to inferring the geographic region where a modern and recently unadmixed genome is most likely to arise, but is hardly suitable for admixed populations and for tracing ancestry up to 1,000 years before present, as its authors have previously claimed. Moreover, all methods of historical linguistics concur that Yiddish is a Germanic language, with no reliable evidence for Slavic, Iranian, or Turkic substrata. PMID:27389685

  12. Drug Discovery Case History: US Spelling

    PubMed Central

    Kufahl, Peter R.; Watterson, Lucas R.

    2015-01-01

    Introduction Globally, alcohol abuse and dependence are significant contributors to chronic disease and injury and are responsible for nearly 4% of all deaths annually. Acamprosate (Campral), one of only three pharmacological treatments approved for the treatment of alcohol dependence, has shown mixed efficacy in clinical trials in maintaining abstinence of detoxified alcoholics since studies began in the 1980’s. Yielding inconsistent results, these studies have prompted skepticism. Areas Covered Herein, the authors review the preclinical studies which have assessed the efficacy of acamprosate in various animal models of alcohol dependence and discuss the disparate findings from the major clinical trials. Moreover, the authors discuss the major limitations of these preclinical and clinical studies and offer explanations for the often contradictory findings. The article also looks at the importance of the calcium moiety that accompanies the salt form of acamprosate and its relevance to its activity. Expert opinion The recent discovery that large doses of calcium largely duplicate the effects of acamprosate in animal models has introduced a serious challenge to the widely-held functional association between this drug and the glutamate neurotransmission system. Future research on acamprosate or newer pharmacotherapeutics should consider assessing plasma and/or brain levels of calcium as a correlate or mediating factor in anti-relapse efficacy. Furthermore, preclinical research on acamprosate has thus far lacked animal models of chemical dependence on alcohol, and the testing of rodents with histories of alcohol intoxication and withdrawal is suggested. PMID:25258174

  13. A historical perspective on the male sexual case history.

    PubMed

    Quallich, Susanne A

    2014-01-01

    The contemporary sexual medicine case history is grounded in the Biopsychosocial Model and its recognition that the past influences one's current interpretation of symptoms. However, the thread of this model can be found throughout the case studies of the early pioneers of sexology. These early investigators began with examinations of homosexual men, slowly moving toward awareness that male sexuality comprises a continuum, while striving to place sexual behavior in a biologic context. Their perspectives served to establish the groundwork for the emerging construct of sexuality and helped shape current methods for identification of sexual function concerns.

  14. Creating Contexts for Studying History with Students Learning English.

    ERIC Educational Resources Information Center

    Olmedo, Irma M.

    1996-01-01

    Argues for using oral history studies to develop language skills and teach social science concepts to limited-English-speaking students. Interviewing family and community members provides students with a familiar context, while translating and transcribing sharpens their language skills. Includes an oral history case study. (MJP)

  15. The Energy Crisis and the Media: Some Case Histories.

    ERIC Educational Resources Information Center

    Schmertz, Herbert

    The five case histories presented in this paper discuss the relations of the Mobil Oil Corporation with various news media since 1973, particularly the difficulties that the oil industry has faced in communicating with and through the news media. The case histories deal with the following topics; news stories about tankers allegedly waiting…

  16. Swordfish and mercury: a case history

    SciTech Connect

    Officer, C.B.; Ryther, J.H.

    1981-01-01

    On April 2, 1970, FDA set a guideline for the amount of mercury permissible in fish. The history of FDA's decision is examined, and a short history of Minamata disease named after a type of mercury poisoning originating in Minamata, Japan, is presented. The methodology used by the FDA in setting a mercury guideline is criticized, while FDA findings are refuted. (2 drawings, 1 graph, 3 photos, 6 references)

  17. "Publish or Perish" as citation metrics used to analyze scientific output in the humanities: International case studies in economics, geography, social sciences, philosophy, and history.

    PubMed

    Baneyx, Audrey

    2008-01-01

    Traditionally, the most commonly used source of bibliometric data is the Thomson ISI Web of Knowledge, in particular the (Social) Science Citation Index and the Journal Citation Reports, which provide the yearly Journal Impact Factors. This database used for the evaluation of researchers is not advantageous in the humanities, mainly because books, conference papers, and non-English journals, which are an important part of scientific activity, are not (well) covered. This paper presents the use of an alternative source of data, Google Scholar, and its benefits in calculating citation metrics in the humanities. Because of its broader range of data sources, the use of Google Scholar generally results in more comprehensive citation coverage in the humanities. This presentation compares and analyzes some international case studies with ISI Web of Knowledge and Google Scholar. The fields of economics, geography, social sciences, philosophy, and history are focused on to illustrate the differences of results between these two databases. To search for relevant publications in the Google Scholar database, the use of "Publish or Perish" and of CleanPoP, which the author developed to clean the results, are compared.

  18. Case Histories of Landslide Impact: A Database-driven Approach

    NASA Astrophysics Data System (ADS)

    Klose, Martin; Damm, Bodo

    2015-04-01

    Fundamental understanding of landslide risk requires in-depth knowledge of how landslides have impacted society in the past (e.g., Corominas et al., 2014). A key to obtain insights into the evolution of landslide risk at single facilities of critical infrastructures are case histories of landslide impact. The purpose of such historical analyses is to inform about the site-specific interactions between landslides and land-use activity. Case histories support correlating landslide events and associated damages with multiple control variables of landslide risk, including (i) previous construction works, (ii) hazard awareness, (iii) the type of structure or its material properties, and (iv) measures of post-disaster mitigation. It is a key advantage of case histories to provide an overview of the changes in the exposure and vulnerability of infrastructures over time. Their application helps to learn more about changing patterns in risk culture and the effectiveness of repair or prevention measures (e.g., Klose et al., 2014). Case histories of landslide impact are developed on the basis of information extracted from landslide databases. The use of path diagrams and illustrated flowcharts as data modeling techniques is aimed at structuring, condensing, and visualizing complex historical data sets on landslide activity and land-use. Much of the scientific potential of case histories simply depends on the quality of available database information. Landslide databases relying on a bottom-up approach characterized by targeted local data specification are optimally suited for historical impact analyses. Combined with systematic retrieval, extraction, and integration of data from multiple sources, landslide databases constitute a valuable tool for developing case histories that enable to open a whole new window on the study of landslide impacts (e.g., Damm and Klose, 2014). The present contribution introduces such a case history for a well-known landslide site at a heavily

  19. The use of instant medical history in a rural clinic. Case study of the use of computers in an Arkansas physician's office.

    PubMed

    Pierce, B

    2000-05-01

    This study evaluated the acceptance of using computers to take a medical history by rural Arkansas patients. Sex, age, race, education, previous computer experience and owning a computer were used as variables. Patients were asked a series of questions to rate their comfort level with using a computer to take their medical history. Comfort ratings ranged from 30 to 45, with a mean of 36.8 (SEM = 0.67). Neither sex, race, age, education, owning a personal computer, nor prior computer experience had a significant effect on the comfort rating. This study helps alleviate one of the concerns--patient acceptance--about the increasing use of computers in practicing medicine.

  20. The Changing Role of the Academic Journal: The Coverage of Higher Education in "History of Education" as a Case Study, 1972-2011

    ERIC Educational Resources Information Center

    Lowe, Roy

    2012-01-01

    This article briefly reviews the coverage of higher education in the pages of this journal since its inception. It reflects on the changing role of the academic journal during this period, on some of the related changes which have taken place in academia itself as well as changing fashions in the study of history of education. Its central…

  1. ANALYSIS OF CASE HISTORIES OF PERSONAL INDEX USE.

    ERIC Educational Resources Information Center

    JAHODA, G.; AND OTHERS

    CASE HISTORIES ARE SUMMARIZED FOR 12 RESEARCHERS IN SCIENCE AND ENGINEERING AT THE FLORIDA STATE UNIVERSITY, I.E., 6 CHEMISTS, 4 BIOLOGISTS, 1 ENGINEER, AND 1 METEOROLOGIST. OVER A 10-MONTH PERIOD, 258 HISTORIES WERE OBTAINED. THE DATA DO NOT PERMIT THE DETERMINATION WITH CERTAINTY THE TYPE OF SUBJECT INDEX MOST SUITABLE FOR A PARTICULAR TYPE OF…

  2. Life histories, salinity zones, and sublethal contributions of contaminants to pelagic fish declines illustrated with a case study of San Francisco Estuary, California, USA

    USGS Publications Warehouse

    Brooks, Marjorie L.; Fleishman, Erica; Brown, Larry R.; Lehman, Peggy W.; Werner, Inge; Scholz, Nathaniel; Michelmore, Carys; Loworn, James R.; Johnson, Michael L.; Schlenk, Daniel

    2012-01-01

    Human effects on estuaries are often associated with major decreases in abundance of aquatic species. However, remediation priorities are difficult to identify when declines result from multiple stressors with interacting sublethal effects. The San Francisco Estuary offers a useful case study of the potential role of contaminants in declines of organisms because the waters of its delta chronically violate legal water quality standards; however, direct effects of contaminants on fish species are rarely observed. Lack of direct lethality in the field has prevented consensus that contaminants may be one of the major drivers of coincident but unexplained declines of fishes with differing life histories and habitats (anadromous, brackish, and freshwater). Our review of available evidence indicates that examining the effects of contaminants and other stressors on specific life stages in different seasons and salinity zones of the estuary is critical to identifying how several interacting stressors could contribute to a general syndrome of declines. Moreover, warming water temperatures of the magnitude projected by climate models increase metabolic rates of ectotherms, and can hasten elimination of some contaminants. However, for other pollutants, concurrent increases in respiratory rate or food intake result in higher doses per unit time without changes in the contaminant concentrations in the water. Food limitation and energetic costs of osmoregulating under altered salinities further limit the amount of energy available to fish; this energy must be redirected from growth and reproduction toward pollutant avoidance, enzymatic detoxification, or elimination. Because all of these processes require energy, bioenergetics methods are promising for evaluating effects of sublethal contaminants in the presence of other stressors, and for informing remediation. Predictive models that evaluate the direct and indirect effects of contaminants will be possible when data become

  3. Life-history trait plasticity and its relationships with plant adaptation and insect fitness: a case study on the aphid Sitobion avenae

    PubMed Central

    Dai, Peng; Shi, Xiaoqin; Liu, Deguang; Ge, Zhaohong; Wang, Da; Dai, Xinjia; Yi, Zhihao; Meng, Xiuxiang

    2016-01-01

    Phenotypic plasticity has recently been considered a powerful means of adaptation, but its relationships with corresponding life-history characters and plant specialization levels of insects have been controversial. To address the issues, Sitobion avenae clones from three plants in two areas were compared. Varying amounts of life-history trait plasticity were found among S. avenae clones on barley, oat and wheat. In most cases, developmental durations and their corresponding plasticities were found to be independent, and fecundities and their plasticities were correlated characters instead. The developmental time of first instar nymphs for oat and wheat clones, but not for barley clones, was found to be independent from its plasticity, showing environment-specific effects. All correlations between environments were found to be positive, which could contribute to low plasticity in S. avenae. Negative correlations between trait plasticities and fitness of test clones suggest that lower plasticity could have higher adaptive value. Correlations between plasticity and specialization indices were identified for all clones, suggesting that plasticity might evolve as a by-product of adaptation to certain environments. The divergence patterns of life-history plasticities in S. avenae, as well as the relationships among plasticity, specialization and fitness, could have significant implications for evolutionary ecology of this aphid. PMID:27426961

  4. [Talcosis as an occupational disease. Case histories].

    PubMed

    Avolio, G; Galietti, F; Oliaro, A; Iorio, M; Cacciabue, M

    1989-03-01

    The case are examined of 49 people (45 males, 4 females), mean age 60 exposed to the risk of talc inhalation in a talc processing and packing factory who were granted disability pensions by the Turin I.N.A.I.L. on the grounds of silicosis in 1975-86. Radiologically the cases presented small round patches in 28 subjects small irregular ones in 15 and large patches in 6. In functional terms, examination revealed ventilatory insufficiency that was primarily restrictive in 17 cases, obstructive in 11 and mixed in 21.

  5. Instructional Computing: Ten Case Studies.

    ERIC Educational Resources Information Center

    Hargan, Carol; Hunter, Beverly

    These case studies are written for educational institutions that wish to plan, extend, or improve their use of computers for learning and teaching. Each case study includes a brief description of each of the following: profile of the institution, history of the development of instructional computing, organization and management, student access to…

  6. Active strike-slip faulting history inferred from offsets of topographic features and basement rocks: a case study of the Arima Takatsuki Tectonic Line, southwest Japan

    NASA Astrophysics Data System (ADS)

    Maruyama, Tadashi; Lin, Aiming

    2002-01-01

    Geological, geomorphological and geophysical data have been used to determine the total displacement, slip rates and age of formation of the Arima-Takatsuki Tectonic Line (ATTL) in southwest Japan. The ATTL is an ENE-WSW-trending dextral strike-slip fault zone that extends for about 60 km from northwest of the Rokko Mountains to southwest of the Kyoto Basin. The ATTL marks a distinct topographic boundary between mountainous regions and basin regions. Tectonic landforms typically associated with active strike-slip faults, such as systematically-deflected stream channels, offset ridges and fault scarps, are recognized along the ATTL. The Quaternary drainage system shows progressive displacement along the fault traces: the greater the magnitude of stream channel, the larger the amount of offset. The maximum dextral deflection of stream channels is 600-700 m. The field data and detailed topographic analyses, however, show that pre-Neogene basement rocks on both sides of the ATTL are displaced by about 16-18 km dextrally and pre-Mio-Pliocene elevated peneplains are also offset 16-17 km in dextral along the ATTL. This suggests that the ATTL formed in the period between the development of the pre-Mio-Pliocene peneplains and deflection of the Quaternary stream channels. The geological, geomorphological and geophysical evidence presented in this study indicates that (1) the ATTL formed after the mid-Miocene, (2) the ATTL has moved as a dextral strike-slip fault with minor vertical component since its formation to late Holocene and (3) the ATTL is presently active with dextral slip rates of 1-3 mm/year and a vertical component of >0.3 mm/year. The formation of the ATTL was probably related to the opening of the Japan Sea, which is the dominant tectonic event around Japan since mid-Miocene. The case study of the ATTL provides insight into understanding the tectonic history and relationship between tectonic landforms and structures in active strike-slip faults.

  7. Syn-orogenic extensional pulses within the contractional history of thrust wedges. The Val di Lima low-angle normal fault case study, Northern Apennines, Italy.

    NASA Astrophysics Data System (ADS)

    Clemenzi, Luca; Molli, Giancarlo; Storti, Fabrizio; Muchez, Philippe; Swennen, Rudy; Torelli, Luigi

    2014-05-01

    overpressures locally influenced active deformation processes and favored shear localization. We propose that the folded low-angle extensional fault system indicates the occurrence of an extensional pulse that affected this sector of the thrust wedge during the orogenic contractional history. In particular, the fault system is considered to be the flat portion of a stair-case extensional fault system developed in the shallower portion of the thrust wedge to compensate for its supercritical taper produced by uplift of the internal zone due to deep-rooted thrusting. Important pulses of wedge extension, similar to the one described here, are likely to occur during the geological history of most thrust wedges, because their long-term evolution is characterized by complex interactions among tectonics, gravitational body forces, and (sub)surface processes. The systems of brittle extensional fault zones, resulting from such extensional pulses, affect fluid circulation through the upper crust by producing articulated networks of hydraulic conduits, barriers, or mixed conduit-barrier systems. In particular, as demonstrated by our results, the effects of extensional fault zones on fluid circulation is twofold: i) they provide effective fluid pathways allowing deep infiltration of surface-derived marine or meteoric water; ii) they can trigger fluid overpressuring, especially in the footwall of shallow-dipping fault segments. Eventually, fluid circulation can exert a strong influence on the mechanical behavior of thrust wedges either by reducing the effective normal stress at depth or triggering the formation of hydrous clay minerals lowering the frictional properties of fault zones.

  8. Case Study: Testing with Case Studies

    ERIC Educational Resources Information Center

    Herreid, Clyde Freeman

    2015-01-01

    This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month's issue discusses using case studies to test for knowledge or lessons learned.

  9. The sirenomelia sequence: a case history.

    PubMed

    Fadhlaoui, Anis; Khrouf, Mohamed; Gaigi, Soumaya; Zhioua, Fethi; Chaker, Anis

    2010-01-01

    We report a case of sirenomelia sequence observed in an incident of preterm labor during the 29th gestational week. According to some authors, this syndrome should be classified separately from caudal regression syndrome and is likely to be the result of an abnormality taking place during the fourth gestational week, causing developmental abnormalities in the lower extremities, pelvis, genitalia, urinary tract and digestive organs. Despite recent progress in pathology, the etiopathogenesis of sirenomelia is still debated.

  10. Breast hypoplasia and breastfeeding: a case history.

    PubMed

    Thorley, Virginia

    2005-07-01

    Hypoplasia, or glandular insufficiency, of the breasts is an infrequent cause of breastfeeding failure or infant failure to thrive. Early evaluation of the breasts of early identification of infant indicators can enable mothers to breastfeed while providing appropriate supplementation to facilitate satisfactory hydration and growth. A case report is presented of a highly motivated mother with minimal breast tissue who was able to soothe four of her infants at her breasts, supplying some breastmilk, while providing the bulk of their nutritional requirements by other means. At the time of writing she is tandem breastfeeding as well as providing artificial milk by bottle.

  11. [Siemens I syndrome--a case history].

    PubMed

    Köhler, U; Müller, W; Schubert, H; Lukassek, B

    1981-08-01

    Report on a patient suffering from keratosis follicularis spinulosa decalvans (Siemens I syndrome). This ia a very rare clinical picture, at least in its complete form. The patient's father and brother are suffering from an abortive Siemens I syndrome. The condition is a form of hereditary parakeratosis, a spinulose keratosis with typical localization in the eyes and on the skin. Causal therapy is not possible; attempts at conservative and surgical treatment are described. Prognostically, the condition will probably come to a standstill at puberty. The description of this case is intended to illustrate the necessity of close cooperation between dermatologist and ophthalmologist.

  12. Case histories of West Valley spent fuel shipments: Final report

    SciTech Connect

    Not Available

    1987-01-01

    In 1983, NRC/FC initiated a study on institutional issues related to spent fuel shipments originating at the former spent fuel processing facility in West Valley, New York. FC staff viewed the shipment campaigns as a one-time opportunity to document the institutional issues that may arise with a substantial increase in spent fuel shipping activity. NRC subsequently contracted with the Aerospace Corporation for the West Valley Study. This report contains a detailed description of the events which took place prior to and during the spent fuel shipments. The report also contains a discussion of the shipment issues that arose, and presents general findings. Most of the institutional issues discussed in the report do not fall under NRC's transportation authority. The case histories provide a reference to agencies and other institutions that may be involved in future spent fuel shipping campaigns. 130 refs., 7 figs., 19 tabs.

  13. Case history of the Cormorant field single satellite well

    SciTech Connect

    Brommer, J.J.; Fernandinho, C.M.M.S.; Liles, J.R.

    1982-01-01

    A case history of the development of specifically tailor-made equipment and the experience gained from the installation and production from the first subsea well in the central area of the Cormorant field is presented. Emphasis is placed on development concepts and the equipment uniquely manufactured to meet special needs. A one-year onshore integrated system test of the equipment is described along with the interface problems identified and resolved prior to going offshore. Actual installation and commissioning activities are fully covered including drilling, completion, and production from the well. The study describes the major reasons for the success of the subsea well to date as being extensive onshore testing, detailed planning, and the early involvement of operating personnel.

  14. Educational Research--History of Education a Curious Case?

    ERIC Educational Resources Information Center

    Goodman, Joyce; Grosvenor, Ian

    2009-01-01

    The article begins with an exploration of the current state of history of education by drawing on published reviews of history of education, thematic analysis of journal content, and mapping of postgraduate study. It then highlights "moments of insecurity". These are characterised by a particular discourse that frames the future of the discipline…

  15. Post-LGM Depositional History using High-Resolution Seismic Stratigraphy and Remote Acoustic Properties: A Case Study from Lake Windermere, UK

    NASA Astrophysics Data System (ADS)

    Pinson, L.; Vardy, M. E.; Dix, J. K.; Henstock, T.; Bull, J. M.

    2009-12-01

    structures in the region, and so it has been previously suggested that rapid climate amelioration at the end of the LGM caused the glaciers to down-waste in situ. A range of retreat moraines identified within this study indicate active-ice removal from the lake throughout the BIIS retreat phase, further their locations and morphology provide insights into the patterns and processes of a more complex deglacial history. The lake also provides a high resolution record of the immediate de-glacial sedimentary environment, the Younger Dryas fluvio-glacial impacts and terrestrial and lacustrine slope failures, and the climatic amelioration associated with the Holocene.

  16. Making the Case for History in Medical Education.

    PubMed

    Jones, David S; Greene, Jeremy A; Duffin, Jacalyn; Harley Warner, John

    2015-10-01

    Historians of medicine have struggled for centuries to make the case for history in medical education. They have developed many arguments about the value of historical perspective, but their efforts have faced persistent obstacles, from limited resources to curricular time constraints and skepticism about whether history actually is essential for physicians. Recent proposals have suggested that history should ally itself with the other medical humanities and make the case that together they can foster medical professionalism. We articulate a different approach and make the case for history as an essential component of medical knowledge, reasoning, and practice. History offers essential insights about the causes of disease (e.g., the non-reductionistic mechanisms needed to account for changes in the burden of disease over time), the nature of efficacy (e.g., why doctors think that their treatments work, and how have their assessments changed over time), and the contingency of medical knowledge and practice amid the social, economic, and political contexts of medicine. These are all things that physicians must know in order to be effective diagnosticians and caregivers, just as they must learn anatomy or pathophysiology. The specific arguments we make can be fit, as needed, into the prevailing language of competencies in medical education.

  17. The history of the case report: a selective review

    PubMed Central

    Nissen, Trygve

    2014-01-01

    The clinical case report is a popular genre in medical writing. While authors and editors have debated the justification for the clinical case report, few have attempted to examine the long history of this genre in medical literature. By reviewing selected literature and presenting and discussing excerpts of clinical case reports from Egyptian antiquity to the 20th century, we illustrate the presence of the genre in medical science and how its form developed. Central features of the clinical case report in different time periods are discussed, including its main components, structure, style and author presence. PMID:25057387

  18. Environmental History: A New Challenge for the Social Studies

    ERIC Educational Resources Information Center

    Purmont, Jon E.

    1976-01-01

    Through the use of case studies, the classroom teacher can integrate environmental history into the social studies course, emphasizing the historical nature of environmental problems. Students can then apply the resulting knowledge, sensitivity, and awareness to developing attitudes and strengthening concerns for present and future ecological…

  19. Cooperative Learning about Nature of Science with a Case from the History of Science

    ERIC Educational Resources Information Center

    Wolfensberger, Balz; Canella, Claudia

    2015-01-01

    This paper reports a predominantly qualitative classroom study on cooperative learning about nature of science (NOS) using a case from the history of science. The purpose of the research was to gain insight into how students worked with the historical case study during cooperative group work, how students and teachers assessed the teaching unit,…

  20. Case history advanced coatings for water treatment plant components

    SciTech Connect

    Stephenson, L.D.; Kumar, A.

    2008-12-15

    Components of water treatment plants (WTPs) are susceptible to corrosion from constant immersion in water. A case history of corrosion and proximity to chlorine problems and their treatment at an Army WTP is presented. Solutions included using high micro-silica restoration mortar and advanced coal tar epoxy coatings.

  1. Using Case Histories in Health Sciences Education- An Example: Leukemia

    ERIC Educational Resources Information Center

    Karni, Karen; And Others

    1976-01-01

    To provide an example of how case histories have been developed and used as one means to a team approach to health care in the course, "The Patient and Health Care Team," this paper describes one topic--leukemia--to show the interaction of health care professionals, as well as input from the family itself. (HD)

  2. A Case-Study of One Teacher's Use of an Interactive Whiteboard System to Support Knowledge Co-Construction in the History Classroom

    ERIC Educational Resources Information Center

    Deaney, Rosemary; Chapman, Arthur; Hennessy, Sara

    2009-01-01

    Interactive whiteboards (IWBs) have rapidly become an integral feature of many classrooms across the UK and elsewhere, but debate continues regarding the pedagogical implications of their use. This article reports on an in-depth case-study from the wider T-MEDIA project (Teacher Mediation of Subject Learning with ICT: a Multimedia Approach). A key…

  3. History of Pay Equity Studies.

    ERIC Educational Resources Information Center

    Barbezat, Debra A.

    2002-01-01

    Traces the evolution of salary-equity studies over time, and how the findings have changed with regard to pay differences by gender and race/ethnicity. Reviews the literature on salary equity for both faculty and nonfaculty academic employees. (EV)

  4. Social Studies: Is It History?

    ERIC Educational Resources Information Center

    Zamosky, Lisa

    2008-01-01

    It is year six of the No Child Left Behind (NCLB) law, and, according to this author, social studies has suffered greatly. In spite of the public outcry over the law's testing mandates and limited federal funding, some educators believe most of the public does not know about core academic subjects being squeezed out of the K-12 public school…

  5. Socio-Demographic, Clinical and Behavioral Characteristics Associated with a History of Suicide Attempts among Psychiatric Outpatients: A Case Control Study in a Northern Mexican City

    PubMed Central

    Alvarado-Esquivel, Cosme; Sánchez-Anguiano, Luis Francisco; Arnaud-Gil, Carlos Alberto; Hernández-Tinoco, Jesús; Molina-Espinoza, Luis Fernando; Rábago-Sánchez, Elizabeth

    2014-01-01

    Background: Little is known about the epidemiology of suicide attempts among psychiatric outpatients in Mexico. This study was aimed to determine the socio-demographic, clinical and behavioral characteristics associated with suicide attempts in psychiatric outpatients in two public hospitals in Durango, Mexico. Methods: Two hundred seventy six psychiatric outpatients (154 suicide attempters and 122 patients without suicide attempt history) attended the two public hospitals in Durango City, Mexico were included in this study. Socio-demographic, clinical and behavioral characteristics were obtained retrospectively from all outpatients and compared in relation to the presence or absence of suicide attempt history. Results: Increased prevalence of suicide attempts was associated with mental and behavioral disorders due to psychoactive substance use (F10-19) (P=0.01), schizophrenia, schizotypal and delusional disorders (F20-29) (P=0.02), mood (affective) disorders (F30-39) (P<0.001), and disorders of adult personality and behavior (F60-69) (P<0.001). Multivariate analysis showed that suicide attempts were associated with young age (OR=1.21, 95% CI: 1.06-1.39; P=0.003), female gender (OR=2.98, 95% CI: 1.55-5.73; P=0.001), urban residence (OR=2.31, 95% CI: 1.17-4.57; P=0.01), memory impairment (OR=1.91, 95% CI: 1.07-3.40; P=0.02), alcohol consumption (OR=2.39, 95% CI: 1.21-4.70; P=0.01), and sexual promiscuity (OR=3.90, 95% CI: 1.74-8.77; P<0.001). Conclusions: We report the association of suicide attempts with socio-demographic, clinical and behavioral characteristics in psychiatric outpatients in Mexico. Results may be useful for an optimal planning of preventive measures against suicide attempts in psychiatric outpatients. PMID:24711751

  6. Can we continue to neglect genomic variation in introgression rates when inferring the history of speciation? A case study in a Mytilus hybrid zone.

    PubMed

    Roux, C; Fraïsse, C; Castric, V; Vekemans, X; Pogson, G H; Bierne, N

    2014-08-01

    The use of molecular data to reconstruct the history of divergence and gene flow between populations of closely related taxa represents a challenging problem. It has been proposed that the long-standing debate about the geography of speciation can be resolved by comparing the likelihoods of a model of isolation with migration and a model of secondary contact. However, data are commonly only fit to a model of isolation with migration and rarely tested against the secondary contact alternative. Furthermore, most demographic inference methods have neglected variation in introgression rates and assume that the gene flow parameter (Nm) is similar among loci. Here, we show that neglecting this source of variation can give misleading results. We analysed DNA sequences sampled from populations of the marine mussels, Mytilus edulis and M. galloprovincialis, across a well-studied mosaic hybrid zone in Europe and evaluated various scenarios of speciation, with or without variation in introgression rates, using an Approximate Bayesian Computation (ABC) approach. Models with heterogeneous gene flow across loci always outperformed models assuming equal migration rates irrespective of the history of gene flow being considered. By incorporating this heterogeneity, the best-supported scenario was a long period of allopatric isolation during the first three-quarters of the time since divergence followed by secondary contact and introgression during the last quarter. By contrast, constraining migration to be homogeneous failed to discriminate among any of the different models of gene flow tested. Our simulations thus provide statistical support for the secondary contact scenario in the European Mytilus hybrid zone that the standard coalescent approach failed to confirm. Our results demonstrate that genomic variation in introgression rates can have profound impacts on the biological conclusions drawn from inference methods and needs to be incorporated in future studies.

  7. Using History to Teach Mathematics: The Case of Logarithms

    NASA Astrophysics Data System (ADS)

    Panagiotou, Evangelos N.

    2011-01-01

    Many authors have discussed the question why we should use the history of mathematics to mathematics education. For example, Fauvel (For Learn Math, 11(2): 3-6, 1991) mentions at least fifteen arguments for applying the history of mathematics in teaching and learning mathematics. Knowing how to introduce history into mathematics lessons is a more difficult step. We found, however, that only a limited number of articles contain instructions on how to use the material, as opposed to numerous general articles suggesting the use of the history of mathematics as a didactical tool. The present article focuses on converting the history of logarithms into material appropriate for teaching students of 11th grade, without any knowledge of calculus. History uncovers that logarithms were invented prior of the exponential function and shows that the logarithms are not an arbitrary product, as is the case when we leap straight in the definition given in all modern textbooks, but they are a response to a problem. We describe step by step the historical evolution of the concept, in a way appropriate for use in class, until the definition of the logarithm as area under the hyperbola. Next, we present the formal development of the theory and define the exponential function. The teaching sequence has been successfully undertaken in two high school classrooms.

  8. CASE STUDY CRITIQUE; UPPER CLINCH CASE STUDY

    EPA Science Inventory

    Case study critique: Upper Clinch case study (from Research on Methods for Integrating Ecological Economics and Ecological Risk Assessment: A Trade-off Weighted Index Approach to Integrating Economics and Ecological Risk Assessment). This critique answers the questions: 1) does ...

  9. "The Sacred Spark of Wonder": Local Museums, Australian Curriculum History, and Pre-Service Primary Teacher Education: A Tasmanian Case Study

    ERIC Educational Resources Information Center

    Brett, Peter

    2014-01-01

    This article explores the intersections between museum learning in a distinctive Tasmanian setting, the possibilities of a new national History curriculum, and the evolving views and professional practices of pre-service primary teachers at one Australian university. Following a brief overview of the framework for local and Australian history that…

  10. Case Study: Writing a Journal Case Study

    ERIC Educational Resources Information Center

    Prud'homme-Genereux, Annie

    2016-01-01

    This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month's issue describes incorporating a journal article into the classroom by first converting it into a case study.

  11. A case study of a precision fertilizer application task generation for wheat based on classified hyperspectral data from UAV combined with farm history data

    NASA Astrophysics Data System (ADS)

    Kaivosoja, Jere; Pesonen, Liisa; Kleemola, Jouko; Pölönen, Ilkka; Salo, Heikki; Honkavaara, Eija; Saari, Heikki; Mäkynen, Jussi; Rajala, Ari

    2013-10-01

    Different remote sensing methods for detecting variations in agricultural fields have been studied in last two decades. There are already existing systems for planning and applying e.g. nitrogen fertilizers to the cereal crop fields. However, there are disadvantages such as high costs, adaptability, reliability, resolution aspects and final products dissemination. With an unmanned aerial vehicle (UAV) based airborne methods, data collection can be performed cost-efficiently with desired spatial and temporal resolutions, below clouds and under diverse weather conditions. A new Fabry-Perot interferometer based hyperspectral imaging technology implemented in an UAV has been introduced. In this research, we studied the possibilities of exploiting classified raster maps from hyperspectral data to produce a work task for a precision fertilizer application. The UAV flight campaign was performed in a wheat test field in Finland in the summer of 2012. Based on the campaign, we have classified raster maps estimating the biomass and nitrogen contents at approximately stage 34 in the Zadoks scale. We combined the classified maps with farm history data such as previous yield maps. Then we generalized the combined results and transformed it to a vectorized zonal task map suitable for farm machinery. We present the selected weights for each dataset in the processing chain and the resultant variable rate application (VRA) task. The additional fertilization according to the generated task was shown to be beneficial for the amount of yield. However, our study is indicating that there are still many uncertainties within the process chain.

  12. Reconstructing the lake-level history of former glacial lakes through the study of relict wave-cut terraces: the case of Lake Ojibway (eastern Canada)

    NASA Astrophysics Data System (ADS)

    Roy, Martin; Veillette, Jean; Daubois, Virginie

    2014-05-01

    The reconstruction of the history of former glacial lakes is commonly based on the study of strandlines that generally consist of boulder ridges, sandy beaches and other near-shore deposits. This approach, however, is limited in some regions where the surficial geology consists of thick accumulation of fine-grained glaciolacustrine sediments that mask most deglacial landforms. This situation is particularly relevant to the study of Lake Ojibway, a large proglacial lake that developed in northern Ontario and Quebec following the retreat of the southern Laurentide ice sheet margin during the last deglaciation. The history of Ojibway lake levels remains poorly known, mainly due to the fact that this lake occupied a deep and featureless basin that favored the sedimentation of thick sequences of rhythmites and prevented the formation of well-developed strandlines. Nonetheless, detailed mapping revealed a complex sequence of discontinuous small-scale cliffs that are scattered over the flat-lying Ojibway clay plain. These terrace-like features range in size from 4 to 7 m in height and can be followed for 10 to 100's of meters. These small-scale geomorphic features are interpreted to represent raised shorelines that were cut into glaciolacustrine sediments by lakeshore erosional processes (i.e., wave action). These so-called wave-cut scarps (WCS) occur at elevations ranging from 3 to 30 m above the present level of Lake Abitibi (267 m), one of the lowest landmarks in the area. Here we evaluate the feasibility of using this type of relict shorelines to constrain the evolution of Ojibway lake levels. For this purpose, a series of WCS were measured along four transects of about 40 km in length in the Lake Abitibi region. The absolute elevation of 154 WCS was determined with a Digital Video Plotter software package using 1:15K air-photos, coupled with precise measurements of control points, which were measured with a high-precision Global Navigation Satellite System tied up to

  13. Case-History Explorations of Scientifically Significant Earth-System Events

    NASA Astrophysics Data System (ADS)

    Hall, M. K.; Walker, C. S.; Mayhew, M. A.

    2007-12-01

    We are developing case histories of recent and ancient natural disasters to provide students a means of learning fundamental earth system science and applying their new understanding to mitigating disasters in the future. We distinguish case histories from case studies in that they investigate real problems that are likely to recur, as opposed to hypothetical but realistic problem scenarios. Students explore the scientific and societal conditions that caused or fueled a disaster; investigate whether the outcome might have been different under different conditions; explore how the disaster has shaped our scientific and societal understanding of such events; and propose appropriate responses and preparation measures for future events. Each case history allows for multiple directions of investigation by individuals or teams. The case histories incorporate actual datasets used by scientists to analyze the event, in addition to analysis tools such as GIS, Excel, and Google Earth. These classroom resources are appropriate for undergraduate earth system majors from first year to third year. We have completed and are field testing case histories for the 1994 M6.7 Northridge earthquake and the Super Tornado Outbreak of 1974, as well as other notable tornado outbreaks. Additionally, we are developing case histories for the 1700 Cascadia mega-tsunami and the 2005 Hurricane Katrina. Research studies of each of these events have resulted in significant changes to our understanding of the earth processes that caused them, and have spawned renewed interest in hazard mitigation. Each case history also incorporates the human element, presented from both a scientific and eyewitness perspective. Field testing includes evaluation of scientific accuracy, usability and pedagogical effectiveness, as described in the DLESE peer-review-system criteria (www.dlese-project.org/review_criteria.html) by field testers and external technical experts.

  14. Thermal evolution of Lower Paleozoic sedimentary successions from organic and inorganic studies: the case history of the Holy Cross Mountains (central Poland)

    NASA Astrophysics Data System (ADS)

    Trolese, Matteo; Stefano Celano, Antonio; Corrado, Sveva; Caricchi, Chiara; Schito, Andrea; Aldega, Luca

    2015-04-01

    The rapid increase in shale gas production in the USA has triggered a growing interest in unconventional resources in Eastern and Northern Europe. In this framework, the potential shale gas reserves in Poland are the most promising in Europe, extending from the Baltic Sea to the Ukraine border. In this area, the Baltic, Podlasie and Lublin basins have already become objective of shale gas exploration and the Holy Cross Mountains (HCM, Central Poland) represents the outcropping analog of the buried targeted Lower Paleozoic successions, providing a unique opportunity to study and assess source rock potential. In this work, we provide new thermal maturity data of Paleozoic rocks exposed in the HCM. A multi-method approach, coupling organic matter/graptolites (i.e., marine organoclasts) optical analysis and X-ray diffraction of clay-sized fraction of sediments, was applied to constrain the burial - thermal evolution of the sedimentary succession. The investigated area of the HCM includes two different tectonic blocks: the Łysogóry region to the North and the Kielce region to the South, separated by the Holy Cross Fault (HCF). lllite content in mixed layer illite-smectite determinations and vitrinite/graptolites reflectance measurements (Roeq%), performed on samples (Cambrian - Devonian) collected from both the regions, show a substantial difference between the two blocks in terms of thermal maturity and burial history. Roeq% values in the southern block range from 0.5% to 1.0%, with few exceptions, indicating early to mid-mature stage of hydrocarbon generation. Samples collected in the northern block show much higher values, mainly from 1.2% up to 1.7%, representative of the gas generation window. The I-S ordering type also shows relevant differences in the two blocks. In the southern block, mixed-layered clay minerals varies from R1 (short-range) to R3 (long-range), whereas R3 structures are recorded in the northern block. Vitrinite reflectance and mixed-layer I

  15. Risk factors for uterine leiomyoma: a practice-based case-control study. I. African-American heritage, reproductive history, body size, and smoking.

    PubMed

    Faerstein, E; Szklo, M; Rosenshein, N

    2001-01-01

    The authors conducted a case-control study among premenopausal women in the Baltimore, Maryland, area to examine the associations of uterine leiomyoma with ethnicity and hormone-related characteristics. Cases of uterine leiomyoma (n = 318) were surgically or sonographically first confirmed between January 1990 and June 1993. A total of 394 controls were selected from women who were visiting their gynecologist for a routine checkup. Data were collected through telephone interviews and abstraction of medical records; 77.8% of eligible cases and 78.0% of eligible controls were interviewed. Positive adjusted associations were observed between risk of uterine leiomyoma and self-described African-American ethnicity (vs. Whites: odds ratio (OR) = 9.4; 95% confidence interval (CI): 5.7, 15.7), early menarche (<11 years vs. >13 years: OR = 2.4; 95% CI: 1.1, 5.6), and high body mass index (upper quartile vs. lower quartile: OR = 2.3; 95% CI: 1.4, 3.8). Inverse associations were observed with use of oral contraceptives (current use vs. never use: OR = 0.2, 95% CI: 0.1, 0.6) and duration of smoking (> or =19 years vs. never: OR = 0.6; 95% CI: 0.4, 1.1). Younger ages at infertility diagnosis and at first and last childbirth were more common among cases; however, analyses of data on tumor location suggested that these associations represent predominantly consequences of uterine leiomyoma. These results suggest that development of uterine leiomyoma is associated with increased exposure to ovarian hormones. Possible reasons for the very elevated risk among African-American women need further investigation.

  16. Methodology for lognormal modelling of malignant pleural mesothelioma survival time distributions: a study of 5580 case histories from Europe and USA

    NASA Astrophysics Data System (ADS)

    Mould, Richard F.; Lahanas, Michael; Asselain, Bernard; Brewster, David; Burgers, Sjaak A.; Damhuis, Ronald A. M.; DeRycke, Yann; Gennaro, Valerio; Szeszenia-Dabrowska, Neonila

    2004-09-01

    A truncated left-censored and right-censored lognormal model has been validated for representing pleural mesothelioma survival times in the range 5-200 weeks for data subsets grouped by age for males, 40-49, 50-59, 60-69, 70-79 and 80+ years and for all ages combined for females. The cases available for study were from Europe and USA and totalled 5580. This is larger than any other pleural mesothelioma cohort accrued for study. The methodology describes the computation of reference baseline probabilities, 5-200 weeks, which can be used in clinical trials to assess results of future promising treatment methods. This study is an extension of previous lognormal modelling by Mould et al (2002 Phys. Med. Biol. 47 3893-924) to predict long-term cancer survival from short-term data where the proportion cured is denoted by C and the uncured proportion, which can be represented by a lognormal, by (1 - C). Pleural mesothelioma is a special case when C = 0.

  17. Magma mixing, crustal contamination, contamination before chemical analysis or complex history? The case study from the Wołek Hill, SW Poland

    NASA Astrophysics Data System (ADS)

    Nowak, Monika

    2015-04-01

    Wołek Hill is one of the smallest exposures from ca. 300 occurrences of Cenozoic volcanic rocks from SW Poland. The outcrop is located about 100 km SW from Wrocław and belongs to the Złotoryja Volcanic Field, which is one of the largest volcanic fields in the Polish part of the Central European Volcanic Province (Ladenberger et al. 2006). The volcanic body, which is about 20 m wide, cross-cuts older Permian volcanic rocks (trachyandesites and rhyolites) and is well exposed in an old abandoned quarry. The occurrence was studied in detail because of great amount of mantle and crustal xenoliths brought to the surface by magma. Wołek Hill is one of the two occurrences in SW Poland where amphibole crystals were recognized as results of modal metasomatism in lithospheric mantle (Nowak et al. 2012). The volcanic rock from Wołek Hill represents complex history, difficult to explain by simple model. The rock was classified as basanite (Nowak, 2012). Its texture is porphyritic to glomeroporphyritic, olivine (Ol) and clinopyroxene (Cpx) occurs as phenocrysts, Cpx is also the dominant phase in the groundmass. Wołek Hill basanite differs from other exposures in Złotoryja Volcanic Field by presence of xenocrysts of Ol and Cpx from mantle rocks and also quartz (Qrtz) and feldspars (Feld) xenocrysts from crustal rocks. Those xenocrysts with additional carbonate veins, probably related with post-volcanic processes, were a great difficulty during rock preparation for whole-rock and isotopic analyses. The complex history of Wołek Hill basanite is visible in its chemical content (slight increase of SiO2, positive Pb anomaly, 87Sr/86Sr and 143Nd/144Nd values), but also in its petrography (e.g. by three types of olivine phenocrysts Fo82-91 with differences in zonation patterns reflecting Fo content; the most abundant are phenocrysts with normal zoning, but also crystals with opposite zoning and oscillatory zoning were recognised). According to available data from the basanite

  18. Collapse of a Multinational State: The Case of Yugoslavia. A Curriculum Unit for History and Social Studies. Recommended for Grades 9 through Community College.

    ERIC Educational Resources Information Center

    Steinbeck, Reinhold; And Others

    This curriculum unit teaches students about nationalism within the context of Europe and is designed to help better understand the history of Yugoslavia and why Yugoslavia fell apart. The unit focuses on Yugoslavia as a multinational state and how the federation was organized during different historical time periods. There are three lessons in the…

  19. A Halifax Case Study that Offers an Alternative History of Care Provided by Local Authorities under the 1913 Mental Deficiency Act

    ERIC Educational Resources Information Center

    Dale, Pamela

    2014-01-01

    Institutions, and their problems, have traditionally dominated learning disability histories. We know far more about what happened in areas where councils established and/or enthusiastically used local institutions than other places. Local authorities less committed to institutional care must have relied more on family and other carers. This may…

  20. Identifying the History and Logic of Negative, Ambivalent, and Positive Responses to Literature: A Case-Study Analysis of Cultural Models

    ERIC Educational Resources Information Center

    Thein, Amanda Haertling

    2009-01-01

    This paper begins with the assumption that the interpretive practices people acquire in social worlds often transfer to their stances toward and interpretations of worlds encountered in literature (Beach, Thein, & Parks, 2007). The goal of this paper is to identify the history and logic behind one student's negative, ambivalent, and positive…

  1. Risk factors for Taenia saginata cysticercus infection in cattle in the United Kingdom: A farm-level case-control study and assessment of the role of movement history, age and sex.

    PubMed

    Marshall, L R; Prakashbabu, B Chengat; Ferreira, J Pinto; Buzdugan, S N; Stärk, K D C; Guitian, J

    2016-12-01

    Bovine cysticercosis is caused by Taenia saginata cysticercus, the larval stage of the human tapeworm Taenia saginata. Recent European initiatives have highlighted the poor sensitivity of current surveillance for this parasite in cattle at slaughter; calling for more targeted, risk based and cost effective methods of T. saginata cysticercus detection. The aim of this study was to provide evidence that could inform such improved meat inspection activities in the United Kingdom (UK). The study included three components: (i) a farm-level case control study; (ii) the characterization of the network of movements of T. saginata cysticercus infected and non-infected animals, and an assessment of the strength of association between having passed through a farm that had previously originated an infected animal and the risk of infection; (iii) the assessment of the relationship between bovine age and gender and risk of infection. Abattoir records and cattle movement history data were used to identify farms of likely acquisition of infection (case farms) and a suitable control group. A questionnaire was used to gather farm-level characteristics and logistic regression was carried out to identify farm-level risk factors for the production of cattle found to be infected at slaughter. The case-control study provided evidence that farms situated close to a permanent potential source of human faecal contamination, and farms which used manure from animals other than cattle, were at higher risk of producing cattle later found to be infected with T. saginata cysticercus at slaughter. No other farm characteristics were identified as a risk factor for this. Analysis of the networks of animal movements showed that some individual farms played a key role as a source of T. saginata cysticercus infection; it was estimated that cattle with a history of being on a farm which previously appeared in the movement history of an infected animal were 4.27 times (P<0.001; 95% CI: 3.3-5.52) more

  2. Case Studies for Effective Business Instruction.

    ERIC Educational Resources Information Center

    McAlister-Kizzier, Donna

    This book is designed as a resource for educators who teach business content in a variety of instructional settings. It contains case studies representing all functional areas of business, including corporate training, for grades 7 through graduate education. Chapter 1 provides an overview of the case study method. The history of the case method,…

  3. Predictive seismic modeling case history from the Niger delta

    SciTech Connect

    Idowu, A.O. )

    1993-09-01

    Seismic modeling techniques provide the mechanics for simulating the geology of the subsurface by depicting the impact of a propagating seismic wavefront on subsurface structures. In practice, seismic data have been used to map the geometry of events in the subsurface, mainly from reflection continuity and the character of reflection packages. In the Niger delta, recent developments in stratigraphic exploration has induced the examination of more subtle features of reflection, mainly polarity, amplitude, and waveform to define the limits of seismic resolution and hence predict the geometry of subsurface fluid and solid interfaces. The case history discussed here involved interpretative study for defining the fluid contents of prospective oil and gas leads as indicated by anomalous seismic events on a Niger delta field located in a water depth of 25 m. An appropriate source signal (5-35 Hertz minimum phase) is selected, and the wavelet is convolved with a practical geologic model to obtain a synthetic seismogram. By an interactive process involving slight modifications in the geologic model, a synthetic seismogram is ultimately derived that matches a field signal, thus providing a more accurate prediction of the geological formation under study. The technique was effect (as confirmed by later drilling) in appraising the fluid contents of the targeted pay zones encountered at gas/water, oil/water, and gas/oil/water contacts in the O field, located in the eastern offshore area of the Niger delta. The method further demonstrated that structural and stratigraphic modeling are effective tools for testing the mapability of a geologic concept and are able to evaluate the significance of reflectivity changes or anomalies on uncalibrated seismic data.

  4. A case history: from traumatic repetition towards psychic representability.

    PubMed

    Bichi, Estela L

    2008-06-01

    This paper is devoted principally to a case history concerning an analytic process extending over a period of almost ten years. The patient is B, who consulted the author after a traumatic episode. Although that was her reason for commencing treatment, a history of previous traumatogenic situations, including a rape during her adolescence, subsequently came to light. The author describes three stages of the treatment, reflected in three different settings in accordance with the work done by both patient and analyst in enabling B to own and work through her infantile and adult traumatic experiences. The process of transformation of traumatic traces lacking psychic representation, which was undertaken by both members of the analytic couple from the beginning of the treatment, was eventually approached in a particular way on the basis of their respective creative capacities, which facilitated the patient's psychic progress towards representability and the possibility of working through the experiences of the past. Much of the challenge of this case involved the analyst's capacity to maintain and at the same time consolidate her analytic posture within her internal setting, while doing her best to overcome any possible misfit (Balint, 1968) between her own technique and the specific complexities of the individual patient. The account illustrates the alternation of phases, at the beginning of the analysis, of remembering and interpretation on the one hand and of the representational void and construction on the other. In the case history proper and in her detailed summing up, the author refers to the place of the analyst during the analytic process, the involvement of her psychic functioning, and the importance of her capacity to work on and make use of her countertransference and self-analytic introspection, with a view to neutralizing any influence that aspects of her 'real person' might have had on the analytic field and on the complex processes taking place within

  5. [Diagnostic investigation in emergency medicine: Why case history is crucial].

    PubMed

    Mirus, M; Heller, A R

    2017-04-01

    We present the preclinical case of a patient reporting chest pain. Pain impeded physical examination. Reviewing the patient's detailed medical history after analgesia revealed a connection between the reported pain and vomiting. This led to a suspicion of organ perforation. Thus, the patient was admitted to a surgical emergency room (ER) and Boerhaave's Syndrome was diagnosed. After deterioration in the ER, cardiopulmonal reanimation (CPR), and successful surgical treatment, the patient was transferred to the intensive care unit (ICU) seven hours after first contact.

  6. Case histories in the great power of steady misrepresentation.

    PubMed

    Todd, J T; Morris, E K

    1992-11-01

    The widespread misrepresentation of behaviorism in the scientific and popular literature has caused its contributions to the understanding of behavior to be systematically ignored or denied. This misrepresentation is manifested, in large part, as a form of academic folklore that codifies erroneous accounts of behaviorism's assumptions, findings, and goals. This article examines three representative "case histories" of the academic folklore about behaviorism: its alleged environmentalism, totalitarian aims, and intellectual intolerance. Because academic folklore has been highly resistant to the corrective efforts of behaviorists, explicit strategies are suggested for identifying and correcting folklore and for promoting more effective interdisciplinary communication.

  7. Design aspects of zeppelin operations from case histories

    NASA Technical Reports Server (NTRS)

    Maiersperger, W. P.

    1975-01-01

    Some widely held beliefs concerning the practicability of rigid airships in air carrier operations are discussed. It is shown by a review of past operational experience, and some basic aerostatic theory, their actual record and the reasons for their demise. Problems of atmospheric density and temperature variations, meteorological factors, aerodynamic stability and control, and mooring difficulties are discussed and related to actual case histories. Structural and flight efficiencies are compared to airplane efficiencies for airplanes contemporary with the zeppelin as well as modern designs. The difficulty of supporting new, commercial airship developments on an economic basis is made clear.

  8. The status of the study of optometry history.

    PubMed

    Goss, David A

    2007-01-01

    The status of optometry history was examined by searching online databases for publications on the history of optometry and the history of other health care professions and some medical specialties. There have been many fewer publications on the history of optometry than on most other health care professions or on medical specialties. Further, there are common misconceptions about optometry history even among its own practitioners. The importance of the study of optometry history is emphasized and suggestions to improve its status are discussed.

  9. Life-history evolution in ants: the case of Cardiocondyla.

    PubMed

    Heinze, Jürgen

    2017-03-15

    Ants are important components of most terrestrial habitats, and a better knowledge of the diversity of their life histories is essential to understand many aspects of ecosystem functioning. The myrmicine genus Cardiocondyla shows a wide range of colony structures, reproductive behaviours, queen and male lifespans, and habitat use. Reconstructing the evolutionary pathways of individual and social phenotypic traits suggests that the ancestral life history of Cardiocondyla was characterized by the presence of multiple, short-lived queens in small-sized colonies and a male polyphenism with winged dispersers and wingless fighters, which engage in lethal combat over female sexuals within their natal nests. Single queening, queen polyphenism, the loss of winged males and tolerance among wingless males appear to be derived traits that evolved with changes in nesting habits, colony size and the spread from tropical to seasonal environments. The aim of this review is to bring together the information on life-history evolution in Cardiocondyla and to highlight the suitability of this genus for functional genomic studies of adaptation, phenotypic plasticity, senescence, invasiveness and other key life-history traits of ants.

  10. Life-history evolution in ants: the case of Cardiocondyla

    PubMed Central

    2017-01-01

    Ants are important components of most terrestrial habitats, and a better knowledge of the diversity of their life histories is essential to understand many aspects of ecosystem functioning. The myrmicine genus Cardiocondyla shows a wide range of colony structures, reproductive behaviours, queen and male lifespans, and habitat use. Reconstructing the evolutionary pathways of individual and social phenotypic traits suggests that the ancestral life history of Cardiocondyla was characterized by the presence of multiple, short-lived queens in small-sized colonies and a male polyphenism with winged dispersers and wingless fighters, which engage in lethal combat over female sexuals within their natal nests. Single queening, queen polyphenism, the loss of winged males and tolerance among wingless males appear to be derived traits that evolved with changes in nesting habits, colony size and the spread from tropical to seasonal environments. The aim of this review is to bring together the information on life-history evolution in Cardiocondyla and to highlight the suitability of this genus for functional genomic studies of adaptation, phenotypic plasticity, senescence, invasiveness and other key life-history traits of ants. PMID:28298341

  11. The evolutionary history and palaeo-ecology of primate predation: Macaca sylvanus from Plio-Pleistocene Europe as a case study.

    PubMed

    Meloro, Carlo; Elton, Sarah

    2012-01-01

    In this article we briefly review primate interactions with predators throughout their evolutionary history. Like today, predators of past primates were taxonomically diverse, including crocodilians, aquatic mammals, hyaenids, raptors and other primates. There is strong evidence for felid predation of extinct primates, with most work undertaken on the African Plio-Pleistocene fossil record. Felid predation of Plio-Pleistocene primates from other areas, including Europe, is much less well understood, so we explored co-occurrence and potential interaction between carnivorans (with particular reference to felids) and Macaca sylvanus, which was widespread and present in Europe from the late Miocene to the late Pleistocene. Over its tenure in the fossil record, M. sylvanus co-occurred with a diverse array of carnivorans, including canids and hyaenids, but medium-sized felids probably posed the most significant predation risk. It is likely, however, that human predation was a major factor contributing to macaque extinction in Europe.

  12. Annual variation of spawning cutthroat trout in a small western USA stream: a case study with implications for the conservation of potamodromous trout life history diversity

    USGS Publications Warehouse

    Bennett, Stephen; Al-Chokhachy, Robert; Roper, Brett B.; Budy, Phaedra

    2014-01-01

    Little is known about the variability in the spatial and temporal distribution of spawning potamodromous trout despite decades of research directed at salmonid spawning ecology and the increased awareness that conserving life history diversity should be a focus of management. We monitored a population of fluvial–resident Bonneville Cutthroat Trout Oncorhynchus clarkii utah in a tributary to the Logan River, Utah, from 2006 to 2012 to gain insight into the distribution and timing of spawning and what factors may influence these spawning activities. We monitored Bonneville Cutthroat Trout using redd surveys with multiple observers and georeferenced redd locations. We documented an extended spawning period that lasted from late April to mid-July. The onset, median, and end of spawning was best predicted by the mean maximum water temperature during the first 13 weeks of the year (F = 130. 4, df = 5, R2 = 0.96, P < 0.0001) with spawning beginning and ending earlier in years that had warmer water temperatures prior to spawning. The distribution of redds was clumped each year and the relative density of redds was greater in a reach dominated by dams constructed by beavers Castor canadensis. Both dam failure and construction appeared to be responsible for creating new spawning habitat that was quickly occupied, demonstrating rapid temporal response to local habitat changes. Bonneville Cutthroat Trout appeared to establish and defend a redd for up to 2 d, and spawning most often occurred between similar-sized individuals. Spawning surveys for potamodromous trout are an underutilized tool that could be used to better understand the distribution and timing of spawning as well as determine the size and trends of the reproducing portion of populations of management concern. Without efforts to document the diversity of this important aspect of potamodromous trout life history, prioritization of conservation will be problematic.

  13. Annual variation of spawning Cutthroat Trout in a small Western USA stream: A case study with implications for the conservation of potamodromous trout life history diversity

    USGS Publications Warehouse

    Bennett, Stephen; Al-Chokhachy, Robert K.; Roper, Brett B.; Budy, Phaedra

    2014-01-01

    Little is known about the variability in the spatial and temporal distribution of spawning potamodromous trout despite decades of research directed at salmonid spawning ecology and the increased awareness that conserving life history diversity should be a focus of management. We monitored a population of fluvial–resident Bonneville Cutthroat Trout Oncorhynchus clarkii utah in a tributary to the Logan River, Utah, from 2006 to 2012 to gain insight into the distribution and timing of spawning and what factors may influence these spawning activities. We monitored Bonneville Cutthroat Trout using redd surveys with multiple observers and georeferenced redd locations. We documented an extended spawning period that lasted from late April to mid-July. The onset, median, and end of spawning was best predicted by the mean maximum water temperature during the first 13 weeks of the year (F = 130. 4, df = 5, R2 = 0.96, P < 0.0001) with spawning beginning and ending earlier in years that had warmer water temperatures prior to spawning. The distribution of redds was clumped each year and the relative density of redds was greater in a reach dominated by dams constructed by beavers Castor canadensis. Both dam failure and construction appeared to be responsible for creating new spawning habitat that was quickly occupied, demonstrating rapid temporal response to local habitat changes. Bonneville Cutthroat Trout appeared to establish and defend a redd for up to 2 d, and spawning most often occurred between similar-sized individuals. Spawning surveys for potamodromous trout are an underutilized tool that could be used to better understand the distribution and timing of spawning as well as determine the size and trends of the reproducing portion of populations of management concern. Without efforts to document the diversity of this important aspect of potamodromous trout life history, prioritization of conservation will be problematic.

  14. INFLUENCE OF EXPOSURE HISTORY ON VITELLOGENIN INDUCTION IN MEDAKA: A CASE OF "ESTROGEN MEMORY"?

    EPA Science Inventory

    Influence of Exposure History on Vitellogenin Induction in Medaka: a Case of "Estrogen Memory"? (Abstract). Mar. Environ. Res. 50(1-5):196.

    In this study, we exposed female medaka to aqueous solutions of o,p'-DDT until tissues residues reached approximately 100 g/g. Male...

  15. Digital Tools Disrupting Tertiary Students' Notions of Disciplinary Knowledge: Cases in History and Tourism

    ERIC Educational Resources Information Center

    Cowie, Bronwen; Khoo, Elaine

    2014-01-01

    This paper reports on the findings from a two year research project that explored the potential of digital tools in support of teaching-learning across different disciplinary areas at a New Zealand university. Two courses (in History and Tourism) are case studied using data collected through interviews with lecturers, tutors and their students,…

  16. Termination: A Case Study.

    PubMed

    Friedberg, Ahron L

    2015-12-01

    In this article I posit and examine certain criteria and qualities for ending an analysis. The case study describes the end phase of a four-year psychoanalysis in which the patient's decision to move to another area forced the end of his analysis. We continued to explore and work through his core neurotic conflicts that included issues of competitive rivalry, dominance and submission, control, and anxiety about birth and death. A shift in the transference from me as a negative father to me as a supportive but competitive older brother was also examined in the context of ending treatment as well as other aspects of the transference. In addition, we analyzed the meaning of his ending treatment based on an extra-analytic circumstance. In discussing this phase of treatment, the definition and history of the term "termination" and its connotations are reviewed. Various criteria for completing an analysis are examined, and technical observations about this phase of treatment are investigated. It was found that while a significant shift in the transference occurred in this phase of the patient's analysis, conflicts related to the transference were not "resolved" in the classical sense. Terminating treatment was considered as a practical matter in which the patient's autonomy and sense of choice were respected and analyzed.

  17. Case study research.

    PubMed

    Taylor, Ruth; Thomas-Gregory, Annette

    2015-06-10

    This article describes case study research for nursing and healthcare practice. Case study research offers the researcher an approach by which a phenomenon can be investigated from multiple perspectives within a bounded context, allowing the researcher to provide a 'thick' description of the phenomenon. Although case study research is a flexible approach for the investigation of complex nursing and healthcare issues, it has methodological challenges, often associated with the multiple methods used in individual studies. These are explored through examples of case study research carried out in practice and education settings. An overview of what constitutes 'good' case study research is proposed.

  18. The volcanic history ofVolcán Alcedo, Galápagos Archipelago: a case study of rhyolitic oceanic volcanism

    USGS Publications Warehouse

    Geist, Dennis J.; Howard, Keith A.; Jellinek, A. Mark; Rayder, Scott

    1994-01-01

    Volca??n Alcedo is one of the seven western Gala??pagos shields and is the only active Gala??pagos volcano known to have erupted rhyolite as well as basalt. The volcano stands 4 km above the sea floor and has a subaerial volume of 200 km3, nearly all of which is basalt. As Volca??n Alcedo grew, it built an elongate domal shield, which was partly truncated during repeated caldera-collapse and partial-filling episodes. An outward-dipping sequence of basalt flows at least 250 m thick forms the steepest (to 33??) flanks of the volcano and is not tilted; thus a constructional origin for the steep upper flanks is favored. About 1 km3 of rhyolite erupted late in the volcano's history from at least three vents and in 2-5 episodes. The most explosive of these produced a tephra blanket that covers the eastern half of the volcano. Homogeneous rhyolitic pumice is overlain by dacite-rhyolite commingled pumice, with no stratigraphic break. The tephra is notable for its low density and coarse grain size. The calculated height of the eruption plume is 23-30 km, and the intensity is estimated to have been 1.2x108 kg/s. Rhyolitic lavas vented from the floor of the caldera and from fissures along the rim overlie the tephra of the plinian phase. The age of the rhyolitic eruptions is ???120 ka, on the basis of K-Ar ages. Between ten and 20 basaltic lava flows are younger than the rhyolites. Recent faulting resulted in a moat around part of the caldera floor. Alcedo most resently erupted sometime between 1946 and 1960 from its southern flank. Alcedo maintains an active, transient hydrothermal system. Acoustic and seismic activity in 1991 is attributed to the disruption of the hydrothermal system by a regional-scale earthquake. ?? 1994 Springer-Verlag.

  19. Quantitative Morphologic Analysis of Boulder Shape and Surface Texture to Infer Environmental History: A Case Study of Rock Breakdown at the Ephrata Fan, Channeled Scabland, Washington

    NASA Technical Reports Server (NTRS)

    Ehlmann, Bethany L.; Viles, Heather A.; Bourke, Mary C.

    2008-01-01

    Boulder morphology reflects both lithology and climate and is dictated by the combined effects of erosion, transport, and weathering. At present, morphologic information at the boulder scale is underutilized as a recorder of environmental processes, partly because of the lack of a systematic quantitative parameter set for reporting and comparing data sets. We develop such a parameter set, incorporating a range of measures of boulder form and surface texture. We use standard shape metrics measured in the field and fractal and morphometric classification methods borrowed from landscape analysis and applied to laser-scanned molds. The parameter set was pilot tested on three populations of basalt boulders with distinct breakdown histories in the Channeled Scabland, Washington: (1) basalt outcrop talus; (2) flood-transported boulders recently excavated from a quarry; and (3) flood-transported boulders, extensively weathered in situ on the Ephrata Fan surface. Size and shape data were found to distinguish between flood-transported and untransported boulders. Size and edge angles (approximately 120 degrees) of flood-transported boulders suggest removal by preferential fracturing along preexisting columnar joints, and curvature data indicate rounding relative to outcrop boulders. Surface textural data show that boulders which have been exposed at the surface are significantly rougher than those buried by fan sediments. Past signatures diagnostic of flood transport still persist on surface boulders, despite ongoing overprinting by processes in the present breakdown environment through roughening and fracturing in situ. Further use of this quantitative boulder parameter set at other terrestrial and planetary sites will aid in cataloging and understanding morphologic signatures of environmental processes.

  20. Electrical leak detection system for landfill liners: A case history

    SciTech Connect

    White, C.C.; Barker, R.D.

    1997-12-01

    As landfill specifications become more stringent in the United Kingdom, the development of increasingly sophisticated monitoring methods is necessary to meet environmental protection goals. The case history describes the development of a 2-million-cubic-meter-capacity landfill, located in a sandstone quarry and 1 km from a public water supply borehole, where the sensitivity of the site to ground water contamination and the proximity to a public water supply borehole are particular issues. The landfill design incorporated a more sensitive environmental monitoring system, using a geophysical technique. The monitoring system comprises a permanent grid of electrodes installed beneath the landfill, connected by multicore cable to a computer-controlled earth resistance meter and switching unit in the site weighbridge. It was designed to detect holes in the landfill liner prior to and after covering with waste and to monitor the migration of contaminants beneath the landfill before they reach the perimeter observation boreholes, should leakage occur.

  1. Family history of cancer, personal history of medical conditions and risk of oral cavity cancer in France: the ICARE study

    PubMed Central

    2013-01-01

    Background The aim of this study was to evaluate the role of family history of cancer and personal history of other medical conditions in the aetiology of the oral cavity cancer in France. Methods We used data from 689 cases of oral cavity squamous cell carcinoma and 3481 controls included in a population-based case–control study, the ICARE study. Odds-ratios (ORs) associated with family history of cancer and personal medical conditions and their 95% confidence intervals (95% CI) were estimated by unconditional logistic regression and were adjusted for age, gender, area of residence, education, body mass index, tobacco smoking and alcohol drinking. Results Personal history of oral candidiasis was related to a significantly increased risk of oral cavity cancer (OR 5.0, 95% CI 2.1-12.1). History of head and neck cancers among the first-degree relatives was associated with an OR of 1.9 (95% CI 1.2-2.8). The risk increased with the number of first-degree relatives with head and neck cancer. Conclusion A family history of head and neck cancer is a marker of an increased risk of oral cavity cancer and should be taken into account to target prevention efforts and screening. Further studies are needed to clarify the association between oral cavity cancer and personal history of candidiasis. PMID:24286495

  2. Measuring History: Cases of State-Level Testing across the United States. Research in Curriculum and Instruction

    ERIC Educational Resources Information Center

    Grant, S. G., Ed.

    2006-01-01

    Measuring History complements the cases presented in Wise Social Studies Practices (Yeager & Davis, 2005). Yeager and Davis highlight the rich and ambitious teaching that can occur in the broad context of state-level testing. In this book, the chapter authors and I bring the particular state history tests more to the fore and examine how…

  3. [New studies on the history of anesthesiology (1)--A newly discovered truth on Woolley and Roe case after an interval of 50 years].

    PubMed

    Matsuki, A

    2000-06-01

    A famous medical accident that is widely known as Woolley and Roe case occurred on Oct 13th, 1947 at the Chesterfield Royal Hospital, England. The patients Albert Woolley and Cecil Roe underwent minor operations under spinal anesthesia using cinchocaine to develop spinal cord myelopathy with paralisis of bilateral legs. Both patients sued Dr James M. Graham, the anesthetist, and the Ministry of Health. Seven years later, Dr Graham and the Ministry of Health were given a verdict of not guilty, because three judges unanimously accepted the phenol theory proposed by a witness Prof Macintosh of Oxford University. He allged that phenol entered into the ampoule of cinchocaine through invisible cracks. Thus the plaintiffs were not compensated. Recentry Dr Hutter of Nottingham University found no validity of phenol theory and also no possibility of invisible cracks. Syringes and needles for spinal anesthesia were used to be sterilised by water-boiling steriliser, and mineral acid was used for descaling the deposition of line at that time. Dr Hutter concluded that the severe spinal myelopathy occurred both in Woolley and Roe would have been caused by mineral acid which was conveyed into their subarachnoidal space by acid-contaminated syringes and needles.

  4. [History of studies of alcohol toxicology].

    PubMed

    Konopka, Tomasz

    2010-01-01

    The early history of forensic alcohology was presented, based on writings from the beginning of the 20th century and numerous forensic medical protocols from autopsies performed in Institute of Forensic Medicine in Cracow in the 19th and 20th century. Ethanol has not been considered a poison for a long time. Suspicion of its toxic effect resulted from cases of deaths as a results of people betting who can drink more alcohol. In case of alcohol poisoning, autopsy does not show any typical changes, so the poisonings have not been recognized for many years. At the beginning of the 20th century, the first chemical tests appeared. They were able to detect the presence of alcohol in tissues. A method for measuring the amount of alcohol in blood was also developed. The majority of methods were based on distillation of blood and inspection of the resultant distillate by physical methods (interferometry, colorimetry, refractometry, gravimetry, measuring thermal expansion and electrical conduction) or chemical methods using different reactions (oxidation of alcohol to acetic acid, reducing potassium dichromate by alcohol, alkylation of iodine by alcohol) and marking the amount of products of reaction by titration. Distillation of blood samples required complicated chemical devices and was very time consuming. Erik Widmark suggested a certain method in 1920, in which distillation of a blood sample took place in the same container, in which titration was performed earlier--the so-called Widmark's Flask. It allowed for distilling many samples in an incubator at the same time and dramatically shortened the time of research. Widmark's method was applied to testing drivers and people who committed crimes and was used in the whole world for many following years.

  5. Growth and resilience of pioneering nonprofit human service organizations: a cross-case analysis of organizational histories.

    PubMed

    Kimberlin, Sara E; Schwartz, Sara L; Austin, Michael J

    2011-01-01

    Knowledge of organizational history is important for recognizing patterns in effective management and understanding how organizations respond to internal and external challenges. This cross-case analysis of 12 histories of pioneering nonprofit human service organizations contributes an important longitudinal perspective on organizational history, complementing the cross-sectional case studies that dominate the existing research on nonprofit organizations. The literature on organizational growth, including lifecycle models and growth management, is reviewed, along with the literature on organizational resilience. Based on analysis of the 12 organizational histories, a conceptual model is presented that synthesizes key factors in the areas of leadership, internal operations, and external relations that influence organizational growth and resilience to enable nonprofit organizations to survive and thrive over time. Both cross-sectional and longitudinal examples from the organizational histories illustrate the conceptual map. The paper concludes with a discussion of directions for future research on nonprofit organizational history.

  6. Graeco-Roman case histories and their influence on Medieval Islamic clinical accounts.

    PubMed

    Alvarez Millan, C

    1999-04-01

    The medieval Islamic medical tradition was the direct heir of Classical and Hellenistic medicine thanks to an unprecedented movement of translation into Arabic, commentaries and systematizations of Greek scientific texts. In the process of assimilation, not only theoretical principles, but also literary models of presenting medical knowledge were adopted, amongst them the case history. Since the clinical account can be used as a tool for medical instruction as well as an instrument for professional self-promotion, this study seeks to investigate which purpose most motivated Islamic physicians, and to demonstrate the extent to which they were influenced by the stylistic patterns which served them as a model. This article comprises an analysis of the context, literary devices and purpose of case histories of the Epidemics, Rufus of Ephesos and Galen, and compares them with those by the tenth-century Islamic physician Abu Bakr Muhammad b. Zakariya al-Razi. Author of the largest number of case histories preserved within the medieval Islamic medical literature, al-Razi's clinical records constitute an instrument with which to study and expand medical knowledge as well as providing useful material for students' medical training. Although al-Razi fused elements from the sources which served him as a model, he did not emulate Galen's use of the clinical history to assert himself in order to gain authority and prestige, but remained faithful to the Hippocratic essence.

  7. Oral cavity rare lesions: 15 years case histories

    PubMed Central

    BARTULI, F.N.; LUCIANI, F.; CARDONI, G.; MUZZI, F.; CADDEO, F.; OTTRIA, L.; ARCURI, C.

    2011-01-01

    SUMMARY Objectives. Oral cavity rare diseases include a various group of uncommon morbid conditions. For this reason they are often called “orphan diseases”, as they are not interesting for research and the description of their natural history is not easy. The aim of our study is to analyze the prevalence and the distribution of oral cavity rare diseases in order to increase their knowledge and allow a fast therapeutic approach. Methods and material. 3144 patients took part to our study, they were choosen according to specific criteria and included in a experimental program; they all were prepared for oral biopsy surgery at Fatebenefratelli Hospital - Tor Vergata University of Rome. Following the results of the histological diagnosis, patients have been grouped. Results. From 1996 to 2010, we observed 1635 men and 1509 women, average age was 53 years, higher for women (55y.) and lower for men (52y.). Conclusions. Nevertheless the low level of accordance and the difficulty in description of natural history of diseases reported in literature, we can conclude that, according to our study the onset of rare diseases shows a percentage of appearing statistically significant. PMID:23277869

  8. A history of the working group to address Los Alamos community health concerns - A case study of community involvement and risk communication

    SciTech Connect

    Harry Otway; Jon Johnson

    2000-01-01

    In May 1991, at a Department of Energy (DOE) public hearing at Los Alamos, New Mexico, a local artist claimed there had been a recent brain tumor cluster in a small Los Alamos neighborhood. He suggested the cause was radiation from past operations of Los Alamos National Laboratory. Data from the Laboratory's extensive environmental monitoring program gave no reason to believe this charge to be true but also could not prove it false. These allegations, reported in the local and regional media, alarmed the community and revealed an unsuspected lack of trust in the Laboratory. Having no immediate and definitive response, the Laboratory offered to collaborate with the community to address this concern. The Los Alamos community accepted this offer and a joint Community-Laboratory Working Group met for the first time 29 days later. The working group set as its primary goal the search for possible carcinogens in the local environment. Meanwhile, the DOE announced its intention to fund the New Mexico Department of Health to perform a separate and independent epidemiological study of all Los Alamos cancer rates. In early 1994, after commissioning 17 environmental studies and meeting 34 times, the working group decided that the public health concerns had been resolved to the satisfaction of the community and voted to disband. This paper tells the story of the artist and the working group, and how the media covered their story. It summarizes the environmental studies directed by the working group and briefly reviews the main findings of the epidemiology study. An epilogue records the present-day recollections of some of the key players in this environmental drama.

  9. Is a positive family history predictive for recurrent acute otitis media in children? An evidence-based case report.

    PubMed

    Albersen, Monique; Bulatović, Maja; Lindner, Sanneke H; van Stiphout, Feikje; van der Heijden, Geert J M G; Schilder, Anne G M; Rovers, Maroeska M

    2010-01-01

    In this evidence-based case report, we studied the clinical question: Is a positive family history of acute otitis media (AOM) predictive for recurrent acute otitis media (rAOM) in children between zero and two years of age? The search yielded 3178 articles, of which only two were relevant and had a high validity regarding our clinical question. Neither of these two studies provided the final answer to our clinical question because they did not report stratified absolute risks for a positive family history. Fortunately, we were able to study the absolute risks in one of the two studies. The absolute risk of rAOM without distinguishing family history was 33 percent; the risk was 27 percent for children without a family history and 45 percent for children with a positive family history. Family history increases the absolute risk, but not in a way that it will help to predict rAOM accurately.

  10. Using History to Teach Mathematics: The Case of Logarithms

    ERIC Educational Resources Information Center

    Panagiotou, Evangelos N.

    2011-01-01

    Many authors have discussed the question "why" we should use the history of mathematics to mathematics education. For example, Fauvel ("For Learn Math," 11(2): 3-6, 1991) mentions at least fifteen arguments for applying the history of mathematics in teaching and learning mathematics. Knowing "how" to introduce history into mathematics lessons is a…

  11. Historical Literacy: The Case for History in American Education.

    ERIC Educational Resources Information Center

    Gagnon, Paul, Ed.

    The Bradley Commission on History in Schools was created in 1987 specifically in response to the widespread concern over the inadequacy, both in quantity and in quality, of the history taught in elementary and secondary school classrooms. This book explores the conditions that contribute to, or impede, the effective teaching of history in schools.…

  12. Progressive hemifacial atrophy. A natural history study.

    PubMed Central

    Miller, M T; Spencer, M A

    1995-01-01

    PURPOSE: To describe two very different natural history courses in 2 patients with hemifacial atrophy. Progressive hemifacial atrophy (Parry-Romberg syndrome, Romberg syndrome, PHA) is characterized by slowly progressive atrophy, frequently involving only one side of the face, primarily affecting the subcutaneous tissue and fat. The onset usually occurs during the first 2 decades of life. The cause and pathophysiology are unknown. Ophthalmic involvement is common, with progressive enophthalmos a frequent finding. Pupillary disturbances, heterochromia, uveitis, pigmentary disturbances of the ocular fundus, and restrictive strabismus have also been reported. Neurologic findings may be present, but the natural history and progression of ocular findings are often not described in the literature. METHODS: We studied the records and present findings of 2 patients with progressive hemifacial atrophy who were observed in our institution over a 10-year period. RESULTS: Both patients showed progression of ophthalmic findings, primarily on the affected side. One patient has had chronic uveitis with secondary cataract and glaucoma, in addition to retinal pigmentary changes. She also had a third-nerve paresis of the contralateral eye and mild seizure activity. The other patient had mild uveitis, some progression of unilateral retinal pigmentary changes, and a significant increase in hyperopia in the affected eye, in addition to hypotony at age 19 without a clear cause, but with secondary retinal and refractive changes. CONCLUSION: Ocular manifestations of progressive hemifacial atrophy are varied, but can progress from mild visual impairment to blindness. Images FIGURE 1 FIGURE 2 FIGURE 3A FIGURE 3B FIGURE 4 FIGURE 5 FIGURE 6 PMID:8719679

  13. Interpreting the paleozoogeography and sea level history of thermally anomalous marine terrace faunas: a case study from the the Last Interglacial Complex of San Clemente Island, California

    USGS Publications Warehouse

    Muhs, Daniel R.; Groves, Lindsey T.; Schumann, R. Randall

    2014-01-01

    Marine invertebrate faunas with mixtures of extralimital southern and extralimital northern faunal elements, called thermally anomalous faunas, have been recognized for more than a century in the Quaternary marine terrace record of the Pacific Coast of North America. Although many mechanisms have been proposed to explain this phenomenon, no single explanation seems to be applicable to all localities where thermally anomalous faunas have been observed. Here, we describe one such thermally anomalous fossil fauna that was studied on the second emergent marine terrace at Eel Point on San Clemente Island. The Eel Point terrace complex is a composite feature, consisting of a narrow upper bench (terrace 2a) and a broader lower bench (terrace 2b). Terrace 2b, previously dated from ~128 ka to ~114 ka, was thought to date solely to marine isotope stage (MIS) 5.5, representing the peak of the last interglacial period. Nevertheless, the fauna contains an extralimital northern species and several northward-ranging species, as well as an extralimital southern species and several southward-ranging species. Similar faunas with thermally anomalous elements have also been reported from San Nicolas Island, Point Loma (San Diego County), and Cayucos (San Luis Obispo County), California. U-series dating of corals at those localities shows that the thermally anomalous faunas may be the result of mixing of fossils from both the ~100-ka (cool-water) and the ~120-ka (warm-water) sea level high stands. Submergence, erosion, and fossil mixing of the ~120-ka terraces by the ~100-ka high-sea stand may have been possible due to glacial isostatic adjustment (GIA) effects on North America, which could have resulted in a higher-than-present local sea level stand at ~100 ka. The terrace elevation spacing on San Clemente Island is very similar to that on San Nicolas Island, and we hypothesize that a similar mixing took place on San Clemente Island. Existing fossil records from older terraces

  14. [Case and studies].

    PubMed

    Schubert, András

    2015-11-15

    Case studies and case reports form an important and ever growing part of scientific and scholarly literature. The paper deals with the share and citation rate of these publication types on different fields of research. In general, evidence seems to support the opinion that an excessive number of such publications may negatively influence the impact factor of the journal. In the literature of scientometrics, case studies (at least the presence of the term "case study" in the titles of the papers) have a moderate share, but their citation rate is practically equal to that of other publication types.

  15. Teaching History with Media: A Case Study.

    ERIC Educational Resources Information Center

    Tengwall, David

    Although research has demonstrated that the well-planned use of audio-visual (AV) media enhances student learning, classroom use of media is usually confined to sporadic, individual presentations which serve only as an auxiliary to the lecture and which are too often regarded by the student as entertainment. To realize the potential of AV media…

  16. SETDA Case Studies 2012

    ERIC Educational Resources Information Center

    State Educational Technology Directors Association, 2012

    2012-01-01

    The State Educational Technology Directors Association (SETDA) published a series of case studies from 28 states to showcase examples of how ARRA EETT ("American Recovery and Reinvestment Act of 2009 Enhancing Education Through Technology") grant funds have impacted teaching and learning. SETDA collected data for the case studies through…

  17. Case Study: Challenging Change.

    ERIC Educational Resources Information Center

    May, Steven K.

    2003-01-01

    Discusses a case study involving organizational change and its effect on employees. Presents three responses to the case study: "Paradox of Ordering Change: I Insist That We Work as a Team" (Paaige K. Turner); "Managing Change Is Managing Meaning" (Greg Hearn and Abraham Ninan); and "The Psychodynamics of an Organizational Change Initiative"…

  18. Lesson Two: Terra Australis. Australian Studies High School Series. History Unit.

    ERIC Educational Resources Information Center

    Waldron, John

    This lesson, one of four stand-alone lessons that examine Australia as an aspect of world history, points out that Australia's unique geographic characteristics and history serve as a useful case study of key global concepts. The lesson focuses on exploration and control of trade routes during the Age of Discovery. The lesson has two parts. In…

  19. History and Imagination: Reenactments for Elementary Social Studies

    ERIC Educational Resources Information Center

    Morris, Ronald Vaughan

    2012-01-01

    In "History and Imagination," elementary school social studies teachers will learn how to help their students break down the walls of their schools, more personally engage with history, and define democratic citizenship. By collaborating together in meaningful investigations into the past and reenacting history, students will become…

  20. New Histories for a New State: A Study of History Textbook Content in Northern Ireland

    ERIC Educational Resources Information Center

    Terra, Luke

    2014-01-01

    This study examined the changing content of history textbooks in Northern Ireland, drawing on a sample of 15 textbooks published from 1968 to 2010. Findings from the content and narrative analysis indicated that following the introduction of the Northern Ireland Curriculum in 1991, history textbooks shifted from a narrative to source-driven…

  1. Case-control geographic clustering for residential histories accounting for risk factors and covariates

    PubMed Central

    2006-01-01

    Background Methods for analyzing space-time variation in risk in case-control studies typically ignore residential mobility. We develop an approach for analyzing case-control data for mobile individuals and apply it to study bladder cancer in 11 counties in southeastern Michigan. At this time data collection is incomplete and no inferences should be drawn – we analyze these data to demonstrate the novel methods. Global, local and focused clustering of residential histories for 219 cases and 437 controls is quantified using time-dependent nearest neighbor relationships. Business address histories for 268 industries that release known or suspected bladder cancer carcinogens are analyzed. A logistic model accounting for smoking, gender, age, race and education specifies the probability of being a case, and is incorporated into the cluster randomization procedures. Sensitivity of clustering to definition of the proximity metric is assessed for 1 to 75 k nearest neighbors. Results Global clustering is partly explained by the covariates but remains statistically significant at 12 of the 14 levels of k considered. After accounting for the covariates 26 Local clusters are found in Lapeer, Ingham, Oakland and Jackson counties, with the clusters in Ingham and Oakland counties appearing in 1950 and persisting to the present. Statistically significant focused clusters are found about the business address histories of 22 industries located in Oakland (19 clusters), Ingham (2) and Jackson (1) counties. Clusters in central and southeastern Oakland County appear in the 1930's and persist to the present day. Conclusion These methods provide a systematic approach for evaluating a series of increasingly realistic alternative hypotheses regarding the sources of excess risk. So long as selection of cases and controls is population-based and not geographically biased, these tools can provide insights into geographic risk factors that were not specifically assessed in the case

  2. Excessive daydreaming: a case history and discussion of mind wandering and high fantasy proneness.

    PubMed

    Schupak, Cynthia; Rosenthal, Jesse

    2009-03-01

    This case study describes a patient presenting with a long history of excessive daydreaming which has caused her distress but is not incident to any other apparent clinical psychiatric disorders. We have treated this patient for over 10 years, and she has responded favorably to fluvoxamine therapy, stating that it helps to control her daydreaming. Our patient, and other psychotherpists, have brought to our attention other possible cases of excessive daydreaming. We examine the available literature regarding daydreaming, mind wandering, and fantasy proneness relative to current cognitive and neuroanatomical models of executive attention.

  3. Energy conservation in the textile industry: 10 case histories

    SciTech Connect

    1982-01-01

    Presented are ten case studies of energy conserving technologies that have been implemented by the textile industry. For each case is given: the name and location of the plant and an employee contact, description of products, energy consumption and costs in years before and after the energy conserving technology was implemented, energy savings since the energy conserving technology was implemented, description of investment decision-making process, and description of any institutional and environmental considerations. Measures included are: tandem preparation line, dyebath reuse, bump-and-run (dyebath temperature drifts for the last 85% of the hold time), foam finishing, wastewater heat recovery, wastewater chlorination and reuse, oven exhaust air counterflow, boiler economizer, wood-fired boiler, and solar industrial process heat. Several other energy conserving technologies that were not studied are briefly summarized. (LEW)

  4. HYDROGEOLOGIC CASE STUDIES

    EPA Science Inventory

    Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

  5. Septic Systems Case Studies

    EPA Pesticide Factsheets

    A collection of septic systems case studies to help community planners, elected officials, health department staff, state officials, and interested citizens explore alternatives for managing their decentralized wastewater treatment systems.

  6. MULTIPLE CONTAMINANTS CASE STUDIES

    EPA Science Inventory

    The presentation provides information taken from the arsenic demonstration program projects that have treatment systems removing multiply contaminants from drinking water. The case studies sited in the presentation consist of projects that have arsenic along with either nitrate, ...

  7. Failures in Hybrid Microcircuits During Environmental Testing. History Cases

    NASA Technical Reports Server (NTRS)

    Teverovsky, Alexander

    2008-01-01

    This purpose of this viewgraph presentation is to discuss failures in hermetic hybrids observed at the GSFC PA Lab during environmental stress testing. The cases discussed are: Case I. Substrate metallization failures during Thermal cycling (TC). Case II. Flex lid-induced failure. Case Ill. Hermeticity failures during TC. Case IV. Die metallization cracking during TC. and how many test cycles and parts is necessary? Case V. Wire Bond failures after life test. Case VI. Failures caused by Au/In IMC growth.

  8. Studies in the History of Business Writing.

    ERIC Educational Resources Information Center

    Douglas, George H., Ed.; Hildebrandt, Herbert W., Ed.

    Because written communication has nearly always been the medium for transmitting information in the business world, these essays are a step toward providing a seminal statement on the history and practice of business writing. The essays in this volume are: "Business Writing and the Spread of Literacy in Late Medieval England" (Malcolm Richardson);…

  9. Implementation of a Software Application for Presurgical Case History Review of Frozen Section Pathology Cases

    PubMed Central

    Norgan, Andrew P.; Okeson, Mathew L.; Juskewitch, Justin E.; Shah, Kabeer K.; Sukov, William R.

    2017-01-01

    Background: The frozen section pathology practice at Mayo Clinic in Rochester performs ~20,000 intraoperative consultations a year (~70–80/weekday). To prepare for intraoperative consultations, surgical pathology fellows and residents review the case history, previous pathology, and relevant imaging the day before surgery. Before the work described herein, review of pending surgical pathology cases was a paper-based process requiring handwritten transcription from the electronic health record, a laborious and potentially error prone process. Methods: To facilitate more efficient case review, a modular extension of an existing surgical listing software application (Surgical and Procedure Scheduling [SPS]) was developed. The module (SPS-pathology-specific module [PM]) added pathology-specific functionality including recording case notes, prefetching of radiology, pathology, and operative reports from the medical record, flagging infectious cases, and real-time tracking of cases in the operating room. After implementation, users were surveyed about its impact on the surgical pathology practice. Results: There were 16 survey respondents (five staff pathologists and eleven residents or fellows). All trainees (11/11) responded that the application improved an aspect of surgical list review including abstraction from medical records (10/11), identification of possibly infectious cases (7/11), and speed of list preparation (10/11). The average reported time savings in list preparation was 1.4 h/day. Respondents indicated the application improved the speed (11/16), clarity (13/16), and accuracy (10/16) of morning report. During the workday, respondents reported the application improved real-time case review (14/16) and situational awareness of ongoing cases (13/16). Conclusions: A majority of respondents found the SPS-PM improved all preparatory and logistical aspects of the Mayo Clinic frozen section surgical pathology practice. In addition, use of the SPS-PM saved an

  10. History of Science and Instructional Design: The Case of Electromagnetism.

    ERIC Educational Resources Information Center

    Seroglou, Fanny; Koumaras, Panagiotis; Tselfes, Vassilis

    1998-01-01

    Addresses two research questions pertaining to the search for students' potential alternate conceptions within the history of science and the possibility of helping students overcome these misconceptions through historical experiments. Contains 19 references. (DDR)

  11. Valeriu Bologa’s studies on the history of science

    PubMed Central

    BÂRSU, CRISTIAN

    2016-01-01

    History of science is a vast and complex domain, comprising many sub-domains, such as: the history of medicine, history of chemistry, history of physics etc. Different specialists in these sub-domains, trying to reach the general and integrative understanding of the history of science, succeeded only after they acquired a rich scientific experience in their fields of activity. One of the scientists who had interesting papers on the history of science was Valeriu Bologa (1892–1971). He was the first Romanian professor of history of medicine. Our paper presents some milestones regarding his preoccupations on the history of science. The aim of our study is to prove that, although he was primarily a historian of medicine, he surpassed this framework, proving to be a skillful historian of science. The topics of his works on the history of science included: the value of the unity of science, the ethical aspects of science during centuries, the interferences between the history of science and the history of medicine etc. PMID:27547069

  12. Distance Learning Case Studies.

    ERIC Educational Resources Information Center

    Barker, Bruce O.

    The Office of Technology Assessment authorized a series of case studies in 1989 to investigate how technologies, services, and programs are implemented in distance education projects. The studies were also intended to look at the role of local, state, and federal agencies, and other public and private entities in providing educational services to…

  13. History and Utopian Ideology: The Case of the SS

    ERIC Educational Resources Information Center

    Arnold, Herbert A.

    1976-01-01

    In times of crisis, man seems to discover or rediscover utopias, identified with social discontent and the attempt to reconstruct history. Here is a brief look at an organization of the recent past whose vicious and notorious acts have tended to overshadow its attempt at constructing a theory, demonstrating all the characteristics of utopian…

  14. History and Philosophy of Science through Models: The Case of Chemical Kinetics

    NASA Astrophysics Data System (ADS)

    Justi, Rosária; Gilbert, John K.

    The case for a greater role for the history and philosophy of science in science education is reviewed. It is argued that such a role can only be realised if it is based on both a credible analytical approach to the history and philosophy of science and if the evolution of a sufficient number of major themes in science is known in suitable detail. Adopting Lakatos' Theory of Scientific Research Programmes as the analytical approach, it is proposed that the development, use, and replacement, of specific models forms the core of such programmes.Chemical kinetics was selected as an exemplar major topic in chemistry. Eight models which have played a central role in the evolution of the study of chemical kinetics were identified by an analysis of the literature. The implications that these models have for the teaching and learning of chemistry today are discussed.

  15. Case Studies in Biology.

    ERIC Educational Resources Information Center

    Zeakes, Samuel J.

    1989-01-01

    A case study writing exercise used in a course on parasitology was found to be a powerful learning experience for students because it involved discipline-based technical writing and terminology, brought the students in as evaluators, applied current learning, caused interaction among all students, and simulated real professional activities. (MSE)

  16. Geothermal Case Studies

    DOE Data Explorer

    Young, Katherine

    2014-09-30

    database.) In fiscal year 2015, NREL is working with universities to populate additional case studies on OpenEI. The goal is to provide a large enough dataset to start conducting analyses of exploration programs to identify correlations between successful exploration plans for areas with similar geologic occurrence models.

  17. Mature vs. Active Deep-Seated Landslides: A Comparison Through Two Case Histories in the Alps

    NASA Astrophysics Data System (ADS)

    Delle Piane, Luca; Perello, Paolo; Baietto, Alessandro; Giorza, Alessandra; Musso, Alessia; Gabriele, Piercarlo; Baster, Ira

    2016-06-01

    Two case histories are presented, concerning the still poorly known alpine deep-seated gravitational slope deformations (DSD) located nearby Lanzada (central Italian Alps), and Sarre (north-western Italian Alps). The Lanzada DSD is a constantly monitored, juvenile, and active phenomenon, partly affecting an existing hydropower plant. Its well-developed landforms allow a precise field characterization of the instability-affected area. The Sarre DSD is a mature, strongly remodeled phenomenon, where the only hazard factor is represented by secondary instability processes at the base of the slope. In this case, the remodeling imposed the adoption of complementary analytical techniques to support the field work. The two presented studies had to be adapted to external factors, namely (a) available information, (b) geological and geomorphological setting, and (c) final scope of the work. The Lanzada case essentially relied upon accurate field work; the Sarre case was mostly based on digital image and DTM processing. In both cases a sound field structural analysis formed the necessary background to understand the mechanisms leading to instability. A back-analysis of the differences between the study methods adopted in the two cases is finally presented, leading to suggestions for further investigations and design.

  18. Natural history and information overload: The case of Linnaeus

    PubMed Central

    Müller-Wille, Staffan; Charmantier, Isabelle

    2012-01-01

    Natural History can be seen as a discipline paradigmatically engaged in ‘data-driven research.’ Historians of early modern science have begun to emphasize its crucial role in the Scientific Revolution, and some observers of present day genomics see it as engaged in a return to natural history practices. A key concept that was developed to understand the dynamics of early modern natural history is that of ‘information overload.’ Taxonomic systems, rules of nomenclature, and technical terminologies were developed in botany and zoology to catch up with the ever increasing amount of information on hitherto unknown plant and animal species. In our contribution, we want to expand on this concept. After all, the same people who complain about information overload are usually the ones who contribute to it most significantly. In order to understand this complex relationship, we will turn to the annotation practices of the Swedish naturalist Carl Linnaeus (1707–1778). The very tools that Linnaeus developed to contain and reduce information overload, as we aim to demonstrate, facilitated a veritable information explosion that led to the emergence of a new research object in botany: the so-called ‘natural’ system. PMID:22326068

  19. Natural history and information overload: The case of Linnaeus.

    PubMed

    Müller-Wille, Staffan; Charmantier, Isabelle

    2012-03-01

    Natural History can be seen as a discipline paradigmatically engaged in 'data-driven research.' Historians of early modern science have begun to emphasize its crucial role in the Scientific Revolution, and some observers of present day genomics see it as engaged in a return to natural history practices. A key concept that was developed to understand the dynamics of early modern natural history is that of 'information overload.' Taxonomic systems, rules of nomenclature, and technical terminologies were developed in botany and zoology to catch up with the ever increasing amount of information on hitherto unknown plant and animal species. In our contribution, we want to expand on this concept. After all, the same people who complain about information overload are usually the ones who contribute to it most significantly. In order to understand this complex relationship, we will turn to the annotation practices of the Swedish naturalist Carl Linnaeus (1707-1778). The very tools that Linnaeus developed to contain and reduce information overload, as we aim to demonstrate, facilitated a veritable information explosion that led to the emergence of a new research object in botany: the so-called 'natural' system.

  20. National Pride and Students' Attitudes towards History: An Exploratory Study

    ERIC Educational Resources Information Center

    Andrews, Rhys; McGlynn, Catherine; Mycock, Andrew

    2010-01-01

    Recent debates about "Britishness" have drawn increasing attention to the inculcation of national values within the school history curriculum. To date, however, few studies have explored young people's attitudes towards history or how these are related to their sources of national pride and shame. This paper draws on a survey of over 400…

  1. Repackaging the Past: Commodification, Consumerism and the Study of History

    ERIC Educational Resources Information Center

    Armstrong, Paul; Coles, Janet

    2008-01-01

    In this paper, we argue against the over-simplistic accusation that the media "dumb down" the study of history. Instead, we critically examine the contemporary presentation of history on British television within a framework of analysis of commodification and consumption. We argue that central to the debate is the idea that whilst…

  2. The History of Education and the Study of Educational Administration

    ERIC Educational Resources Information Center

    Sungaila, Helen

    2008-01-01

    The nexus between the fields of the administration and history of education is obvious. Can the contribution of the study of the history of education "to the development of educational administration as a discipline"--that is, as "an area of academic and theoretical research"--safely be taken for granted? Such a question, of course, is of little…

  3. A Gateway to Social Studies through Topical History

    ERIC Educational Resources Information Center

    van Scotter, Richard; White, William E.; Hartoonian, H. Michael; Davis, James E.

    2007-01-01

    The Colonial Williamsburg Foundation, the nation's largest living history museum, in partnership with the Social Science Education Consortium, scholars, educators, and teachers, has developed engaging learning materials for social studies classrooms. One such program is the Colonial Williamsburg History and Civics Project, which is based on…

  4. THE BIRTH OF LANGUAGE, THE CASE HISTORY OF A NON-VERBAL CHILD.

    ERIC Educational Resources Information Center

    KASTEIN, SHULAMITH; TRACE, BARBARA

    THE HISTORY OF A CHILD WITH BEHAVIOR AND LANGUAGE DISORDERS IS WRITTEN BY THE MOTHER IN CONJUNCTION WITH A SPEECH PATHOLOGIST. WRITTEN FROM A PROFESSIONAL VIEWPOINT, THE CASE HISTORY PRESENTS MEDICAL, EDUCATIONAL, PHYSICAL, AND SOCIAL DEVELOPMENTS AS THEY OCCURRED FROM BIRTH TO 11 YEARS OF AGE. TESTING PROCEDURES AND RESULTS, DIAGNOSIS, AND…

  5. A Course on Humanistic Creativity in Later Life: Literature Review, Case Histories, and Recommendations.

    ERIC Educational Resources Information Center

    Nuessel, Frank; Van Stewart, Arthur; Cedeno, Aristofanes

    2001-01-01

    Presents case histories of late-life creativity in literature (May Sarton), painting (Marcel Duchamp), music (Leos Janacek), dance (Martha Graham), and theatre (Jessica Tandy). Offers suggestions for a course on humanistic creativity in later life. (Contains 74 references.) (SK)

  6. [The history of spondylolisthesis. The nineteenth century: early case reports, terminology, etiology and pathogenesis].

    PubMed

    Schlenzka, D

    2015-12-01

    The author describes the history of research and development of knowledge on lumbar spondylolisthesis. Based on the available literature, early case reports, creation of the terminology and etiological concepts are presented.

  7. Discovery and geology of the Desert Peak geothermal field: a case history. Bulletin 97

    SciTech Connect

    Benoit, W.R.; Hiner, J.E.; Forest, R.T.

    1982-09-01

    A case history of the exploration, development (through 1980), and geology of the Desert Peak geothermal field is presented. Sections on geochemistry, geophysics, and temperature-gradient drilling are included.

  8. The Unheralded History of the Lemon Grove Desegregation Case

    ERIC Educational Resources Information Center

    Madrid, E. Michael

    2008-01-01

    In 1931, the Southern California community of Lemon Grove served as the unlikely stage for a dramatic and significant civil rights court case. A group of Mexican and Mexican-American parents and their children won a major victory in the battle against school segregation and the notion of separate but equal facilities. The case, now commonly…

  9. Binary 4D seismic history matching, a metric study

    NASA Astrophysics Data System (ADS)

    Chassagne, Romain; Obidegwu, Dennis; Dambrine, Julien; MacBeth, Colin

    2016-11-01

    This paper explores 4D seismic history matching and it specifically focuses on the objective function used during the optimisation with seismic data. The objective function is calculated by using binary maps, where one map is obtained from the observed seismic data and the other is from one realisation of the optimisation algorithm from the simulation model. In order to decide which set of parameters is a relevant update for the simulation model, an efficient way is required to measure how similar these two binary images are, during their evaluation within the objective function. Behind this aspect of quantification of the similarities or dissimilarities lies the metric notion, or the art of measuring distances. Four metrics are proposed with this study, the well-known Hamming distance, two widely used metrics, the Hausdorff distance and Mutual Information and a recent metric, called the Current Measure Metric. These metrics will be tested and compared on different case scenarios, designed in accordance to a real field case (gas exsolution) before being used in the second part of the paper. Despite its simplicity, the Hamming distance gives positive results, but the Current Measure Metric appears to be a more efficient choice to cover a wider range of scenarios, these conclusions remain true when tested on synthetic and real dataset in a history matching exercise. Some practical aspects of binary map processes will be examined through the paper, as it is shown that it is more proper to use a derivative free optimisation algorithm and a proper metric should be more inclined to capture global features than local features.

  10. Case history -- Reddell Oil Field -- Evangeline Parish, Louisiana

    SciTech Connect

    Austin, C.T.

    1996-12-31

    The purpose of this paper is to give the gravity meter credit as the main geophysical method used in the discovery of the Reddell Oil Field in Evangeline Parish, Louisiana. LL&E provided me with gravity data to use in the calculation of a salt model of the Reddell Salt Dome. The purpose of the study was to define the structure so the truncation of three (3) prospective sands in the Wilcox, Lower Eocene could be determined. The interpretation of the Reeddell Dome was complicated by the influence of the nearby Pine Prairie Salt Dome and both had to be modeled. A regional gravity was removed from the Bouguer gravity to give a Residual Gravity Map representing the gravity response to the salt domes. Gamma-gamma density logs were used to determine the density of the sediments and the contrasting densities between the sediments and the consistent salt density. Another input for the computer modeling program was a reference surface; in this case the top of the Louann salt, Lower Jurassic. The digital data are gridded with a square grid that is appropriate for the gravity control. The reference surface becomes a series of prisms whose height is a variable. The modeling program uses an iterative procedure to develop a salt structure whose computed gravity matches the input gravity. The domes were successfully modeled from the gravity and a discovery well was drilled at the Reddell Dome. This dome was later developed along with the Pine Prairie Dome.

  11. Case history -- Reddell Oil Field -- Evangeline Parish, Louisiana

    SciTech Connect

    Austin, C.T. )

    1996-01-01

    The purpose of this paper is to give the gravity meter credit as the main geophysical method used in the discovery of the Reddell Oil Field in Evangeline Parish, Louisiana. LL E provided me with gravity data to use in the calculation of a salt model of the Reddell Salt Dome. The purpose of the study was to define the structure so the truncation of three (3) prospective sands in the Wilcox, Lower Eocene could be determined. The interpretation of the Reeddell Dome was complicated by the influence of the nearby Pine Prairie Salt Dome and both had to be modeled. A regional gravity was removed from the Bouguer gravity to give a Residual Gravity Map representing the gravity response to the salt domes. Gamma-gamma density logs were used to determine the density of the sediments and the contrasting densities between the sediments and the consistent salt density. Another input for the computer modeling program was a reference surface; in this case the top of the Louann salt, Lower Jurassic. The digital data are gridded with a square grid that is appropriate for the gravity control. The reference surface becomes a series of prisms whose height is a variable. The modeling program uses an iterative procedure to develop a salt structure whose computed gravity matches the input gravity. The domes were successfully modeled from the gravity and a discovery well was drilled at the Reddell Dome. This dome was later developed along with the Pine Prairie Dome.

  12. Sour-gas sweetening during offshore drillsteam tests; A case history

    SciTech Connect

    Casselman, R.L. )

    1990-03-01

    This case history details the use of a sour-gas sweetener on two exploratory well drillstem tests (DST's) offshore California. Also included is a brief description of the process and comments on future plans. This case history is intended to show that the process can be applied effectively in a sour-gas offshore DST. It shows performance on each of the exploratory wells and explains the solutions initiated to mitigate problems incurred in subsequent DST's.

  13. Short diet history for assessing dietary exposure to N-nitrosamines in epidemiologic studies

    SciTech Connect

    Howe, G.R.; Harrison, L.; Jain, M.

    1986-10-01

    A short diet history for use in assessing dietary nitrosamine exposure in epidemiologic studies has been developed by using data form a case-control study of diet and stomach cancer carried out in Ontario, Manitoba, and Newfoundland between 1979 and 1982. The method gives excellent correlations for seven dietary components with estimates based on a full diet history, and also performs well when tested on a different data set from a case-control study of diet and colorectal cancer carried out in Ontario and Alberta between 1976 and 1978.

  14. Teaching History with Museums: Strategies for K-12 Social Studies

    ERIC Educational Resources Information Center

    Marcus, Alan; Stoddard, Jeremy; Woodward, Walter W.

    2011-01-01

    "Teaching History with Museums" provides an introduction and overview of the rich pedagogical power of museums. In this comprehensive textbook, the authors show how museums offer a sophisticated understanding of the past and develop habits of mind in ways that are not easily duplicated in the classroom. Using engaging cases to illustrate…

  15. Qualitative Case Study Guidelines

    DTIC Science & Technology

    2013-11-01

    methods in public relations and marketing communications. New York, Routledge 166-185 13. Denzin , N. K. (1978) The Research Act: A Theoretical...Introduction to Sociological Methods. 2nd ed. New York, McGraw-Hill 14. Denzin , N. K. and Lincoln, Y. S. (2011) The SAGE Handbook of Qualitative...The Art of Science. In: Denzin , N. K. and Lincoln, Y. S. (eds.) Handbook of Qualitative Research. Thousand Oaks, Sage 19. GAO (1990) Case Study

  16. Remediation case studies: Bioremediation

    SciTech Connect

    1995-03-01

    The purpose of this report is to provide case studies of site cleanup projects utilizing bioremediation. This volume contains reports on nine projects that include bioventing and land treatment technologies, as well as a unique, large-scale slurry-phase project. In these projects, petroleum hydrocarbons are the most frequent contaminants of concern. Two land treatment projects in this volume represent completed cleanups at creosote sites.

  17. The Rainbow and the Achromatic Telescope: Two Case Studies.

    ERIC Educational Resources Information Center

    Rudd, M. Eugene

    1988-01-01

    Presented are two case studies on the perspective of the history of science. Provided are the contributions of 12 famous scientists with their historical illustrations and diagrams. Five conclusions are drawn from these studies. (YP)

  18. Water Detection Response Team Geophysics Element Case Histories

    DTIC Science & Technology

    1990-09-01

    34 on the surface by conducting one or more types of geophysical tests at that point. In the ideal case, the aquifer thickness and water quality would...The Geophysics Element has been deployed to participate in several major military exercises. Case historics of the Geophysics Element involvement in...ber who will advise the well drillers and reinterpret the geophysical survey results on the basis of drilling results, if necessary. This operating

  19. Exploration case studies

    NASA Astrophysics Data System (ADS)

    Underwood, Jimmy M.

    1989-04-01

    NASA's Office of Exploration has undertaken four case studies for prospective expansion of manned space activities beyond earth orbit. The subjects of these studies are (1) an expedition to the Martian moon Phobos; (2) a three-mission expedition to Mars; (3) the construction of a man-tended lunar observatory; and (4) the construction of a lunar outpost to serve as the basis for construction of a Martian outpost. The fourth alternative would follow the recommendation of the National Commission on Space for the creation of a 'bridge between worlds' in which explorers would develop ways in which to 'live off the land' in a space environment.

  20. Mr. Stinson's Vietnam: Moral Ambiguity in the History Classroom. Teaching Cases in Cross-Cultural Education, No. 11.

    ERIC Educational Resources Information Center

    Wineburg, Samuel S.; Kleinfeld, Judith, Ed.

    This document proposes a case study approach to U.S. history instruction. The method which the document suggests arises from an actual class discussion of the My Lai massacre that occurred during the Vietnam War. A sample class discussion concerns the setting of standards to guide national and international affairs and the particular standards…

  1. Social Studies Secondary Curriculum Guide on Far Eastern History. World History Series, Bulletin No. 256.

    ERIC Educational Resources Information Center

    Perialas, Stephen

    This secondary level curriculum guide provides a program and identifies materials for the study of the history and culture of China and Japan. The purpose of the course is to provide exercises that require students to research, question, analyze, synthesize, and evaluate historical data. Each lesson contains behavior and content objectives,…

  2. The history of scatter hoarding studies

    PubMed Central

    Brodin, Anders

    2010-01-01

    In this review, I will present an overview of the development of the field of scatter hoarding studies. Scatter hoarding is a conspicuous behaviour and it has been observed by humans for a long time. Apart from an exceptional experimental study already published in 1720, it started with observational field studies of scatter hoarding birds in the 1940s. Driven by a general interest in birds, several ornithologists made large-scale studies of hoarding behaviour in species such as nutcrackers and boreal titmice. Scatter hoarding birds seem to remember caching locations accurately, and it was shown in the 1960s that successful retrieval is dependent on a specific part of the brain, the hippocampus. The study of scatter hoarding, spatial memory and the hippocampus has since then developed into a study system for evolutionary studies of spatial memory. In 1978, a game theoretical paper started the era of modern studies by establishing that a recovery advantage is necessary for individual hoarders for the evolution of a hoarding strategy. The same year, a combined theoretical and empirical study on scatter hoarding squirrels investigated how caches should be spaced out in order to minimize cache loss, a phenomenon sometimes called optimal cache density theory. Since then, the scatter hoarding paradigm has branched into a number of different fields: (i) theoretical and empirical studies of the evolution of hoarding, (ii) field studies with modern sampling methods, (iii) studies of the precise nature of the caching memory, (iv) a variety of studies of caching memory and its relationship to the hippocampus. Scatter hoarding has also been the subject of studies of (v) coevolution between scatter hoarding animals and the plants that are dispersed by these. PMID:20156813

  3. Building a Constructivist Practice: A Longitudinal Study of Beginning History Teachers

    ERIC Educational Resources Information Center

    Martell, Christopher C.

    2014-01-01

    This longitudinal interpretative case study examined the constructivist beliefs and related practices of four secondary history teachers from their teacher preparation through their first year in the classroom. The results of this study showed that issues of classroom control were major barriers for the implementation of constructivist-oriented…

  4. History and Applications of Dust Devil Studies

    NASA Astrophysics Data System (ADS)

    Lorenz, Ralph D.; Balme, Matthew R.; Gu, Zhaolin; Kahanpää, Henrik; Klose, Martina; Kurgansky, Michael V.; Patel, Manish R.; Reiss, Dennis; Rossi, Angelo Pio; Spiga, Aymeric; Takemi, Tetsuya; Wei, Wei

    2016-11-01

    Studies of dust devils, and their impact on society, are reviewed. Dust devils have been noted since antiquity, and have been documented in many countries, as well as on the planet Mars. As time-variable vortex entities, they have become a cultural motif. Three major stimuli of dust devil research are identified, nuclear testing, terrestrial climate studies, and perhaps most significantly, Mars research. Dust devils present an occasional safety hazard to light structures and have caused several deaths.

  5. Using History To Teach Scientific Method: The Case of Argon

    NASA Astrophysics Data System (ADS)

    Giunta, Carmen J.

    1998-10-01

    The history of science is full of stories that exhibit scientific methodology to an exemplary degree. Such stories can be vehicles for the teaching of scientific thought to non-science majors in general-education science courses, particularly if they do not involve much technical background and are told in ordinary language. This paper illustrates the kind of lessons that can be gleaned from such stories by examining the discovery of argon, an episode replete with examples of how scientists pursue knowledge. Lord Rayleigh's use of multiple methods to determine the density of nitrogen; his persistent tracking down of a small but real anomaly in those measurements; his and William Ramsay's eventual realization that the anomaly was due to a previously unknown but relatively plentiful component of the atmosphere, an inert, monatomic gas; and Ramsay's subsequent successful search for other members of the inert gas family all illustrate the scientific approach to knowledge. This story can be presented to students in Rayleigh's words, annotated to supply background material and to pose questions.

  6. The history of pharmacy studies in Croatia.

    PubMed

    Kujundzić, N; Inić, S

    2014-02-01

    The first study of pharmacy on Croatian territory was founded in the early 19th century (1806-1813). Vicencio Dandolo (1758-1819), a pharmacist from Venice who was Napoleon's governor of Dalmatia, established a lyceum in Zadar in 1806. It included education for pharmacists. The Lyceum (later the Central School) was closed in 1811. The founding of the modern University of Zagreb (1874) and its Department of Mathematics and Natural Sciences (1876) created the conditions for the development of university education for pharmacists. The study of pharmacy was introduced at the University of Zagreb in 1882 through the efforts of the Croatian-Slavonian Pharmaceutical Association and the professors of the Faculty of Philosophy. The study went through a series of reforms. The most significant one came with the introduction of the four-year study of pharmacy and the establishment of the Pharmacy Department of the Faculty of Philosophy (1928). The independent Faculty of Pharmacy (today's Faculty of Pharmacy and Biochemistry) was founded at the University of Zagreb in 1942. Since 1989, it has had two separate studies (Pharmacy and Medical Biochemistry).

  7. Conducting and Reporting Case Studies.

    ERIC Educational Resources Information Center

    Lichtman, Merilyn; Taylor, Satomi Izumi

    Issues and elements of case study research are explored and illustrated with the example of a case study of a kindergarten in a suburb of Tokyo (Japan). Case study research is a type of qualitative research that concentrates on a single unit or entity, with boundaries established by the researcher. The case is an example drawn from a larger class,…

  8. Reasoning with case histories of process knowledge for efficient process development

    NASA Technical Reports Server (NTRS)

    Bharwani, Seraj S.; Walls, Joe T.; Jackson, Michael E.

    1988-01-01

    The significance of compiling case histories of empirical process knowledge and the role of such histories in improving the efficiency of manufacturing process development is discussed in this paper. Methods of representing important investigations as cases and using the information from such cases to eliminate redundancy of empirical investigations in analogous process development situations are also discussed. A system is proposed that uses such methods to capture the problem-solving framework of the application domain. A conceptual design of the system is presented and discussed.

  9. The History of the Study of Detonation

    ERIC Educational Resources Information Center

    Bulat, Pavel V.; Volkov, Konstantin N.

    2016-01-01

    In this article we reviewed the main concepts of detonative combustion. Concepts of slow and fast combustion, of detonation adiabat are introduced. Landmark works on experimental and semi-empirical detonation study are presented. We reviewed Chapman-Jouguet stationary detonation and spin detonation. Various mathematical model of detonation wave…

  10. [Case-control study of moyamoya disease].

    PubMed

    Yamaguchi, T; Matsushima, Y; Takada, Y; Niimi, Y; Umezu, R; Fukuyama, Y; Yamaguchi, M; Inaba, Y

    1989-05-01

    The cause of Moyamoya disease is still unknown. We made a research about the factors closely related to Moyamoya disease through a case-control study. The number of cases studied was 66. Controls were selected from among patients' friends, matched as to sex, age and residential area. Questionnaires were sent to the cases and the respective controls by mail. The questions were about past history, developmental history, school records, habitual factors, dietary habits and pets. The first symptoms and age at onset were also surveyed in the cases. The response rate was 84.8% (56 cases) of the cases and 76.5% (101 cases) out of the 132 controls. There was no significant difference in the prevalence of tonsillitis, conjunctivitis, otitis media, and bronchitis. Odds ratio of fever of unknown origin is 2.793 and X2 is 7.213. Diseases whose odds ratio was over 1 were herpes, appendicitis, bronchitis, asthma, anemia, dental caries, head injury and drug allergy. But all of them were not significantly prevalent. Odds ratios of school records were 4-9 and X2 were 4-17 from elementary to junior high school. Odds ratio of western dishes was 2.709 and X2 was 5.189. There was no significant difference as to pets kept. We could not find overt relationships between Moyamoya disease and diseases of head and neck like tonsillitis.

  11. PREDICT : A CASE STUDY.

    SciTech Connect

    Kerscher, W. J. III; Booker, J. M.; Meyer, Mary A.

    2001-01-01

    Delphi Automotive Systems and the Los Alamos National Laboratory worked together to develop PREDICT, a new methodology to characterize the reliability of a new product during its development program. Rather than conducting testing after hardware has been built, and developing statistical confidence bands around the results, this updating approach starts with an early reliability estimate characterized by large uncertainty, and then proceeds to reduce the uncertainty by folding in fresh information in a Bayesian framework. A considerable amount of knowledge is available at the beginning of a program in the form of expert judgment which helps to provide the initial estimate. This estimate is then continually updated as substantial and varied information becomes available during the course of the development program. This paper presents a case study of the application of PREDICT, with the objective of further describing the methodology. PREDICT has been honored with an R&D 100 Award presented by R&D Magazine.

  12. Autoimmune lymphoproliferative syndrome (ALPS). Case report and family history.

    PubMed

    Ries, F; Ferster, A; Rieux-Laucat, F; Biwer, A; Dicato, M

    2010-01-01

    Autoimmune lymphoproliferative syndrome (ALPS) is a rare disease caused by defective lymphocyte apoptosis and is characterized by non-malignant lymphoproliferation, hepatosplenomegaly, autoimmune manifestations and increased risk of both Hodgkin's and non-Hodgkin's lymphoma. Most forms of the disease are due to germ line mutations of the FAS gene and manifest during the first years of life with fluctuating lymphadenopathies, hemolysis, immune thrombocytopenia. During the second decade of life disease manifestations improve spontaneously but autoimmune problems still occur and there is an increased risk of lymphoproliferative malignancy. We describe a typical case of ALPS in a now 44 year old man, followed since the age of 2 for disease manifestations that were unclear at the beginning.

  13. Self-Concept of Pregnant Adolescents: A Case Study.

    ERIC Educational Resources Information Center

    Elkes, Barbara Halpren; Crocitto, John A.

    1987-01-01

    Used case study approach to assess self-concepts of pregnant adolescents regarding life history, personality traits, and development. Results revealed common themes of historic background and personality traits: no intact families, lack of trust in family members, history of drug and alcohol abuse, permissive sexual attitudes and early sexual…

  14. Serum osteoprotegerin and soluble receptor activator of nuclear factor kappaB ligand levels in patients with a history of differentiated thyroid carcinoma: a case-controlled cohort study.

    PubMed

    Giusti, Massimo; Cecoli, Francesca; Fazzuoli, Laura; De Franchis, Vincenzina; Ceresola, Enrica; Ferone, Diego; Mussap, Michele; Minuto, Francesco

    2007-05-01

    Overt hyperthyroidism is associated with changes in bone metabolism, whereas the effect of levothyroxine (L-T4) load in patients with differentiated thyroid carcinoma (DTC) is controversial. The aim of our study was to evaluate osteoprotegerin (OPG) and soluble receptor activator of nuclear factor kappaB ligand (RANK-L) in patients with DTC with suppressed endogenous thyrotropin due to L-T4 regimen. A cohort of 80 subjects with DTC (68 women and 12 men; age range, 27-81 years) was studied. A cohort of 55 subjects with a history of partial or total surgery for nonmalignant thyroid pathology served as a control group. Groups were matched for sex, age, and body mass index. Per-week dosage of L-T4 was significantly higher in patients with DTC than in controls (P < .001). More elevated free T(4) concentrations (P < .001) and more suppressed thyrotropin and thyroglobulin levels (P < .001) were found in subjects with DTC than in controls. No difference in serum or urinary parameters related to bone metabolism or dual-energy x-ray absorptiometry was noted between the groups. Overall, OPG levels were similar in both groups but were significantly (P = .03) lower in postmenopausal women with DTC than in postmenopausal control women. Only control women showed lower OPG levels in premenopausal than in postmenopausal (P = .002) conditions. Overall, RANK-L levels were significantly higher (P = .03) in subjects with DTC than in controls. In both groups, OPG and RANK-L levels were unrelated to each other. A significant positive correlation was seen between OPG levels and age in both subjects with DTC (P < .001) and controls (P < .001). Serum RANK-L correlated negatively with age in subjects with DTC (P = .05). Although there were several differences in L-T4 dosages, OPG and RANK-L levels were similar in patients with a history of DTC and those with a history of nonmalignant thyroid diseases. The correlation between circulating OPG and RANK-L levels was not significant. The increase

  15. Apollo 13 Case Study

    NASA Technical Reports Server (NTRS)

    Anderson, Brenda Lindley

    2011-01-01

    The dramatic journey of the crippled Apollo 13 vehicle has been heavily documented and popularized. Many people know there was an explosion in the service module which caused the vehicle to lose its oxygen supply. Less well known is the set of circumstances which led to the explosion. This paper examines the manufacturing, processing and testing history of oxygen tank #2, detailing the additive effects which caused the oxygen to ignite and to overpressure the tank.

  16. Life history, diversity and distribution: A study of Japanese pteridophytes

    USGS Publications Warehouse

    Guo, Q.; Kato, Masako; Ricklefs, R.E.

    2003-01-01

    Many studies address the relationships between diversity or distribution and attributes of the physical environment. However, how these relationships are connected to variation in life history is poorly understood. This is particularly true in the case of pteridophytes. Japanese ferns and their allies comprise one of the best-known pteridophyte floras in the world. We analyzed ca 600 species of Japanese pteridophytes for which there is detailed information on distribution, reproduction, and chromosome number. Species richness was greatest in groups with a single reproductive mode (sexual, followed by apogamous), but distribution was greatest in species groups with multiple reproductive modes: sexual plus either sterile (irregular in meiosis) or apogamous. Geographical ranges varied greatly among species with small chromosome numbers but were uniformly small among species having high chromosome numbers. Seasonally green (mostly summer green) species had significantly larger distribution ranges than evergreen species. Endemic species had higher proportions of apogamy and sterility than non-endemic species. Seasonally green species had significantly larger distributional ranges, and a smaller proportion of species with apogamous reproduction, than evergreen species. There was no clear relationship between distribution and spore size, either among endemic species, non-endemic species, or all species combined. There was no relationship between spore size and chromosome number when all species were combined. However, positive relationships were detected within three of the nine largest genera, suggesting potential phylogenetic effects. We concluded that habitat availability, rather than dispersability, may be the limiting factor for the distribution of pteridophytes in Japan.

  17. History and the Study of "Administration" (LAMPS) in Education: A Reflection on an Editorial for a Special Issue

    ERIC Educational Resources Information Center

    Ribbins, Peter

    2008-01-01

    The special edition of JEAH published in August 2006 on "Administration and Leadership in Education: A Case for History?" argued that history has been seriously undervalued in the study of administration and leadership in education. My introductory editorial explained why this mattered and outlined the framework in which the papers it…

  18. Toward Systematic Study of the History and Foundations of Literacy

    ERIC Educational Resources Information Center

    King, James R.; Stahl, Norman A.

    2012-01-01

    This study of a literacy course begins with methodological approaches useful in the historical study of the literacy profession, its practices, beliefs, and participants. A model course is presented via "moments" in the history of literacy. Results from implementations of the model course are also presented.

  19. Women's Studies in Australian Higher Education: Introduction and Brief History.

    ERIC Educational Resources Information Center

    Ryan, Lyndall

    1991-01-01

    The history of women's studies in Australian universities is reviewed from 1973 to the present. Three phases are identified: phase one 1972-82: revolutionary feminism versus liberal feminism; phase two 1983-88: development of academic feminism; and phase three 1989-91: women's studies in the post-Dawkins era. (DB)

  20. Sixth-Form Projects in Biology: A Case History.

    ERIC Educational Resources Information Center

    Robinson, P. M.; Parker, R. E.

    1981-01-01

    Some of the problems encountered in devising sixth-form projects are discussed and a detailed account given of one project in which a study was made of the effect of onion bulb volatiles on the germination of lettuce seed. (Author)

  1. Nanomagnetism: A Case History of Nanoscience and Technology

    ERIC Educational Resources Information Center

    Freeman, Mark

    2009-01-01

    This paper overviews the occurrence and study of magnetism on nanometer-length scales, that is, at sizes where the natural unit on a ruler would be one-billionth of a meter. Nanomagnetism has fascinating early origins on planet Earth, and we must first go back a couple billion years to get to the beginning of the story. Then we will quickly make…

  2. A Rare Case of Primary Tuberculous Tenosynovitis in a Young Patient with an Acute History.

    PubMed

    Reed, Alistair J M; Rodrigues, Jeremy N; Al-Ghazal, Sharif; Shariff, Zakir

    2017-03-01

    We present a rare case of primary tuberculous tenosynovitis in a young patient with an acute history of non-penetrating traumatic injury. The patient had recently visited Pakistan and presented with sudden onset pain at the base of their right fifth digit after trying to catch a cricket ball. A provisional diagnosis of haematoma was made; however, ultrasonography revealed a mass attached to the A2 pulley. Surgical excision followed by histological examination and culture identified Mycobacterium Tuberculosis infection. This case serves to raise clinical awareness of this rare condition and highlight the importance of obtaining a travel history.

  3. Natural Learning Case Study Archives

    ERIC Educational Resources Information Center

    Lawler, Robert W.

    2015-01-01

    Natural Learning Case Study Archives (NLCSA) is a research facility for those interested in using case study analysis to deepen their understanding of common sense knowledge and natural learning (how the mind interacts with everyday experiences to develop common sense knowledge). The database comprises three case study corpora based on experiences…

  4. The Paradox of Case Study.

    ERIC Educational Resources Information Center

    Simons, Helen

    1996-01-01

    Examines the paradox of case studies' abilities to understand the complexity in particular contexts while not being generalizable. Argues that the pressure for quantification and multisite case study design in policy research has weakened the original utility of the case study method for understanding complex educational phenomena. (DSK)

  5. Dioxin: a case study.

    PubMed

    Bond, G G

    1993-01-01

    The need to notify individuals of a possible health risk from their past exposure to potentially hazardous agents frequently extends beyond workers to include community groups. The issues to consider in community notification are frequently similar to those that are important for worker notification but may include some that are unique. This case study traces the evolution of one company's strategy for communicating with the public about possible dioxin contamination associated with its operations. Early communications tended to emphasize the technical aspects of the issues in the fashion of scientists talking to other scientists. This was interpreted by some to be symptomatic of an arrogant and uncaring attitude. Beginning in the early 1980s, the company's management recognized the need to reach out to a variety of audiences on multiple levels, and shifted to a more comprehensive communications strategy. A similar shift is now occurring throughout the chemical manufacturing industry as top managers realize that, if they expect to continue to operate, they must become more accountable and responsive to the public.

  6. Summary of SPT based field case history data of CETIN (2016) database

    USGS Publications Warehouse

    Onder Cetin, K.; Seed, Raymond B.; Kayen, Robert E.; Moss, Robb E. S.; Bilge, H. Tolga; Ilgac, Makbule; Chowdhury, Khaled

    2016-01-01

    team. A more detailed description of some of the details of the methods and procedures used to evaluate and analyze these field performance case histories is also presented in Cetin (2000) and Cetin et al. (2000) though the final evaluations presented in this report are the most recent interpretations undertaken under these current studies.

  7. The Three Domains of Conservation Genetics: Case Histories from Hawaiian Waters.

    PubMed

    Bowen, Brian W

    2016-07-01

    The scientific field of conservation biology is dominated by 3 specialties: phylogenetics, ecology, and evolution. Under this triad, phylogenetics is oriented towards the past history of biodiversity, conserving the divergent branches in the tree of life. The ecological component is rooted in the present, maintaining the contemporary life support systems for biodiversity. Evolutionary conservation (as defined here) is concerned with preserving the raw materials for generating future biodiversity. All 3 domains can be documented with genetic case histories in the waters of the Hawaiian Archipelago, an isolated chain of volcanic islands with 2 types of biodiversity: colonists, and new species that arose from colonists. This review demonstrates that 1) phylogenetic studies have identified previously unknown branches in the tree of life that are endemic to Hawaiian waters; 2) population genetic surveys define isolated marine ecosystems as management units, and 3) phylogeographic analyses illustrate the pathways of colonization that can enhance future biodiversity. Conventional molecular markers have advanced all 3 domains in conservation biology over the last 3 decades, and recent advances in genomics are especially valuable for understanding the foundations of future evolutionary diversity.

  8. Training managers for high productivity: Guidelines and a case history

    NASA Technical Reports Server (NTRS)

    Ranftl, R. M.

    1985-01-01

    Hughes Aircrafts 13-year productivity study clearly identifies management as the key link in the entire productivity chain. This fact led to the establishment of a long-term series of seminars on personal, managerial, organizational, and operational productivity for all levels and sectors of line and staff management. To inspire the work force to higher levels of productivity and creativity management, itself, must first be inspired. In turn they have to clearly understand the productive and creative processes, fashion an effective productivity improvement plan with sound strategy and implementation, create an optimal environmental chemistry, and provide the outstanding leadership necessary to propel their organizations to achieve full potential. The primary goals of the seminars are to (1) ignite that spark of inspiration, enabling productive action to follow, (2) provide participants a credible roadmap and effective tools for implementation, and (3) develop a dedicated commitment to leadership and productivity throughout the management team.

  9. Mathematical representations in science: a cognitive-historical case history.

    PubMed

    Tweney, Ryan D

    2009-10-01

    The important role of mathematical representations in scientific thinking has received little attention from cognitive scientists. This study argues that neglect of this issue is unwarranted, given existing cognitive theories and laws, together with promising results from the cognitive historical analysis of several important scientists. In particular, while the mathematical wizardry of James Clerk Maxwell differed dramatically from the experimental approaches favored by Michael Faraday, Maxwell himself recognized Faraday as "in reality a mathematician of a very high order," and his own work as in some respects a re-representation of Faraday's field theory in analytic terms. The implications of the similarities and differences between the two figures open new perspectives on the cognitive role of mathematics as a learned mode of representation in science.

  10. United States -- Mexican joint ventures: A case history approach

    SciTech Connect

    Moore, N.L.; Chidester, R.J.; Hughes, K.R.; Fowler, R.A.

    1993-03-01

    Because the Mexican government has encouraged investment in Mexico by increasing the percentage of ownership of a Mexican business that a US company can hold, joint ventures are more attractive now than they had been in the past. This study provides preliminary information for US renewable energy companies who are interested in forming a joint venture with a Mexican company. This report is not intended to be a complete reference but does identifies a number of important factors that should be observed when forming a Mexican joint venture: (1)Successful joint ventures achieve the goals of each partner. (2)It is essential that all parties agree to the allocation of responsibilities. (3)Put everything in writing. (4)Research in depth the country or countries in which you are considering doing business.

  11. Geophysics with applications to subsurface waste disposal: Case history

    SciTech Connect

    Lee, K.H.

    2001-08-09

    Recent development in geophysical methods allows us to accurately map the distribution of seismic velocity, density and electrical conductivity beneath the surface and between boreholes. These physical properties are dependent on porosity, fluid saturation, fluid conductivity, pressure, temperature, clay content, and in some circumstances, permeability. Hydrological parameters may be measured or inferred from drill hole experiments or directly from core samples. The point measurements in a drill hole are then interpolated to the interwell volume using either statistical properties of the local geology or reasonable estimates of the geological structure and lithology. More direct evidence is obtained from well tests, and interference tests between multiple wells, but these are ill posed inverse problems when it comes to defining the properties of the entire interwell volume. Furthermore such tests are impossible in the vadose zone. The interpolation of well data is often inaccurate or misleading and the central problem for all these studies is the lack of these fundamental parameters throughout the subsurface volume of interest.

  12. In situ diesel fuel bioremediation: A case history

    SciTech Connect

    Rhodes, D.K.; Burke, G.K.; Smith, N.; Clark, D.

    1995-12-31

    As a result of a ruptured fuel line, the study site had diesel fuel soil contamination and free product more than 2 ft (0.75 m) thick on the groundwater surface. Diesel fuel, which is composed of a high percentage of nonvolatile compounds, has proven difficult to remediate using conventional extraction remediation techniques. A number of remedial alternatives were reviewed, and the patented in situ biodegradation BioSparge{sup SM} technology was selected for the site and performed under license by a specialty contractor. BioSparge{sup SM} is a field-proven closed-loop (no vapor emissions) system that supplies a continuous, steady supply of oxygen, moisture, and additional heat to enhance microorganism activity. The system injects an enriched airstream beneath the groundwater surface elevation and/or within the contaminant plume and removes residual vapors from vadose zone soil within and above the contaminant plume. The technology has no air discharge, which is critical in areas where strict air discharge regulations apply. The focus of this paper is the viability of in situ biodegradation as an effective remediation alternative for reducing nonvolatile petroleum products.

  13. Interrupting History: Rethinking History Curriculum after "The End of History". Counterpoints: Studies in the Postmodern Theory of Education. Volume 404

    ERIC Educational Resources Information Center

    Parkes, Robert John

    2011-01-01

    Since the emergence of postmodern social theory, history has been haunted by predictions of its imminent end. Postmodernism has been accused of making historical research and writing untenable, encouraging the proliferation of revisionist histories, providing fertile ground for historical denial, and promoting the adoption of a mournful view of…

  14. Using the Case Study Method in Teaching College Physics

    ERIC Educational Resources Information Center

    Burko, Lior M.

    2016-01-01

    The case study teaching method has a long history (starting at least with Socrates) and wide current use in business schools, medical schools, law schools, and a variety of other disciplines. However, relatively little use is made of it in the physical sciences, specifically in physics or astronomy. The case study method should be considered by…

  15. Human Rights and History Education: An Australian Study

    ERIC Educational Resources Information Center

    Burridge Nina; Buchanan, John; Chodkiewicz, Andrew

    2014-01-01

    The place of education for and about human rights within the school curriculum remains contested and this paper reports on the first national cross-sectoral investigation of its place in Australian curricula and more specifically in national and state History curriculum documents. Opportunities for the inclusion of human rights based studies were…

  16. How to Teach Thinking Skills in Social Studies and History

    ERIC Educational Resources Information Center

    Beyer, Barry K.

    2008-01-01

    This article presents four guidelines for providing direct instruction in thinking skills in social studies and history at any grade level. The author first describes, with examples, three major components of any thinking skill that students need to know. Second, he presents teaching techniques for making these components explicit. Third, he…

  17. The Multi-Disciplinary Approach in History and Ethnic Studies.

    ERIC Educational Resources Information Center

    Balogh, Sandor

    1980-01-01

    Considers the fractionalization of the social science disciplines indicating that this clear delineation of intellectual territory is important to research, but that in information assimilation and dissemination an interdisciplinary approach is more appropriate. Recommends two approaches to interdisciplinary studies based around history and ethnic…

  18. Rett syndrome diagnostic criteria: Lessons from the Natural History Study

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Analysis of 819 participants enrolled in the Rett syndrome (RTT) Natural History Study, validates recently revised diagnostic criteria. Seven hundred sixty-five females fulfilled 2002 consensus criteria for classic (653/85.4%) or variant (112/14.6%) RTT. All participants classified as classic RTT fu...

  19. A Study of Work Histories of Married Nurses.

    ERIC Educational Resources Information Center

    Willis, Lucy Dorothea

    This study dealt with married women as past, present, and future members of the nursing force. Respondents were 53 married women, aged 22 to 68, in the Moose Jaw, Saskatchewan, Health Region who had been registered nurses. Data were gathered on personal, family, and work history, motives for entering the nursing profession, and satisfactions and…

  20. Connecticut Curriculum Trace Maps: History/Social Studies.

    ERIC Educational Resources Information Center

    Connecticut State Board of Education, Hartford.

    These Connecticut Curriculum Trace Maps are designed to help curriculum developers and teachers translate Connecticut's K-12 history and social studies performance standards into objectives and classroom practice. The Trace Maps provide detailed descriptions of what students should know and be able to do at smaller grade level clusters, K-2, 3-4,…

  1. Women and History: Bibliography. Women's Studies: Potentialities and Implications.

    ERIC Educational Resources Information Center

    Laurel, Jeanne P., Comp.

    The amount of information available on Women's Studies has increased dramatically over the past two decades. Therefore, a brief bibliography of texts which focuses on women and history has been compiled. The items are grouped under the following headings: articles (published in a journal), bibliographies (including teaching guides and sources to…

  2. A Study about Using Internet in History Lessons

    ERIC Educational Resources Information Center

    Ulusoy, Kadir

    2012-01-01

    Internet has become an important part in the field of education as it is in every area nowadays as well. Internet has become appealing among educators and students with its easy and quick access and wide opportunities. In this study, an application of using internet in the history course was done. 160 students who were enrolled in College of…

  3. Teaching Pharmacology by Case Study.

    ERIC Educational Resources Information Center

    Jordan, Sue

    1997-01-01

    Using pharmacology case studies with nursing students encourages theory-practice links and infuses real-life content. Cases provide rich qualitative data for evaluating curriculum. However, they are not a substitute for evidence-based practice. (SK)

  4. CASE HISTORY OF FINE PORE DIFFUSER RETROFIT AT RIDGEWOOD, NEW JERSEY

    EPA Science Inventory

    In April 1983, the Ridgewood, New Jersey Wastewater Treatment Plant underwent a retrofit from a coarse bubble to a fine pore aeration system. Also, process modification from contact stabilization to tapered aeration occurred. This report presents a case history of plant and aer...

  5. Four Case Histories and a Literature Review of Williams Syndrome and Autistic Behavior.

    ERIC Educational Resources Information Center

    Gillberg, Christopher; Rasmussen, Peder

    1994-01-01

    This paper summarizes the case histories of four young children with concurrent autistic disorder and Williams syndrome. Williams syndrome comprises a peculiar facial appearance, learning disorder, and often hypercalcemia, mild microcephaly, large blood vessel stenosis, and a specific behavioral phenotype. Literature on Williams syndrome is…

  6. Case study--leprosy.

    PubMed

    Wood, A M; Wood, C M; Bakker-Dyos, J

    2010-01-01

    We present the case of a 26 year old Indian base worker who attended the Role 2 enhanced hospital in Iraq with a case of leprosy. The patient presented four times over a 12 month period with non-specific pain in the right hand and forearm combined with a large lesion of dry skin and reduced sensation in the forearm. A clinical diagnosis of leprosy was made, which was subsequently confirmed as paucibacillary leprosy by skin smears sent to the UK. It was not possible to treat the patient locally and a recommendation made to the patient's employer that the patient return to India to commence treatment.

  7. Food and History: Teaching Social History Through the Study of Cuisine Patterns

    ERIC Educational Resources Information Center

    Gordon, Bertram M.

    1974-01-01

    Some interesting relationships between food and history -- working women and convenience food, exploration and the importation of new vegetables, reliance on potatoes and Irish emigration -- are suggested to indicate the usefulness of exploring history through eating habits. (JH)

  8. Lead poisoning: case studies.

    PubMed

    Gordon, J N; Taylor, A; Bennett, P N

    2002-05-01

    Early clinical features of lead toxicity are non-specific and an occupational history is particularly valuable. Lead in the body comprises 2% in the blood (t1/2 35 days) and 95% in bone and dentine (t1/2 20-30 years). Blood lead may remain elevated for years after cessation from long exposure, due to redistribution from bone. Blood lead concentration is the most widely used marker for inorganic lead exposure. Zinc protoporphyrin (ZPP) concentration in blood usefully reflects lead exposure over the prior 3 months. Symptomatic patients with blood lead concentration >2.4 micromol l-1 (50 microg dl-1) or in any event >3.8 micromol l-1 (80 microg dl-1) should receive sodium calciumedetate i.v., followed by succimer by mouth for 19 days. Asymptomatic patients with blood lead concentration >2.4 micromol l-1 (50 microg dl-1) may be treated with succimer alone. Sodium calciumedetate should be given with dimercaprol to treat lead encephalopathy.

  9. Emotion, Engagement, and Case Studies

    ERIC Educational Resources Information Center

    Herreid, Clyde Freeman; Terry, David R.; Lemons, Paula; Armstrong, Norris; Brickman, Peggy; Ribbens, Eric

    2014-01-01

    Three college faculty taught large general biology classes using case studies and personal response systems (clickers). Each instructor taught the same eight cases in two different sections, except the questions within the cases differed. In one section the questions were lower order (LO) factual inquiries, and in the other they were largely…

  10. History Electives in High School: Making Social Studies Engaging

    ERIC Educational Resources Information Center

    Kelsey, Sean

    2011-01-01

    The majority of public high school students in California are missing out on history. Many students may not see it that way, but that is because they have little understanding of what it means to appreciate history. The traditional high school history survey courses, US History and world history, provide an overview of "everything that ever…

  11. On the Psychometric Study of Human Life History Strategies.

    PubMed

    Richardson, George B; Sanning, Blair K; Lai, Mark H C; Copping, Lee T; Hardesty, Patrick H; Kruger, Daniel J

    2017-01-01

    This article attends to recent discussions of validity in psychometric research on human life history strategy (LHS), provides a constructive critique of the extant literature, and describes strategies for improving construct validity. To place the psychometric study of human LHS on more solid ground, our review indicates that researchers should (a) use approaches to psychometric modeling that are consistent with their philosophies of measurement, (b) confirm the dimensionality of life history indicators, and (c) establish measurement invariance for at least a subset of indicators. Because we see confirming the dimensionality of life history indicators as the next step toward placing the psychometrics of human LHS on more solid ground, we use nationally representative data and structural equation modeling to test the structure of middle adult life history indicators. We found statistically independent mating competition and Super-K dimensions and the effects of parental harshness and childhood unpredictability on Super-K were consistent with past research. However, childhood socioeconomic status had a moderate positive effect on mating competition and no effect on Super-K, while unpredictability did not predict mating competition. We conclude that human LHS is more complex than previously suggested-there does not seem to be a single dimension of human LHS among Western adults and the effects of environmental components seem to vary between mating competition and Super-K.

  12. Case Study: Case Studies and the Flipped Classroom

    ERIC Educational Resources Information Center

    Herreid, Clyde Freeman; Schiller, Nancy A.

    2013-01-01

    This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month's issue discusses the positive and negative aspects of the "flipped classroom." In the flipped classroom model, what is normally done in class and what is normally done as…

  13. A Case of Skin Picking Disorder of a Patient with a History of Childhood Abuse

    PubMed Central

    OKAN İBİLOĞLU, Aslıhan; ATLI, Abdullah; KAYA, Mehmet Cemal; DEMİR, Süleyman; BULUT, Mahmut; SIR, Aytekin

    2016-01-01

    Skin picking (excoriation) disorder is the recurrent excoriation of one’s own skin, resulting in noticeable skin damage. People pick their skin for different reasons. For the majority of patients, first skin picking is associated with a history of childhood abuse and personal problems. Subjects who moderately to severely cause injurious self-harm are more likely to have a history of exposure to domestic violence and childhood abuse than those who do not self-harm. At the same time, these conditions could be related to the etiology for majority of other psychiatric disorders. We report herein, a case of a patient with skin picking disorder who had a history of childhood physical and emotional abuse with borderline personality disorder. PMID:28360794

  14. Gulf of Mexico Climate-History Calibration Study

    USGS Publications Warehouse

    Spear, Jessica W.; Poore, Richard Z.

    2010-01-01

    Reliable instrumental records of past climate are available for about the last 150 years only. To supplement the instrumental record, reconstructions of past climate are made from natural recorders such as trees, ice, corals, and microfossils preserved in sediments. These proxy records provide information on the rate and magnitude of past climate variability, factors that are critical to distinguishing between natural and human-induced climate change in the present. However, the value of proxy records is heavily dependent on calibration between the chemistry of the natural recorder and of the modern environmental conditions. The Gulf of Mexico Climate and Environmental History Project is currently undertaking a climate-history calibration study with material collected from an automated sediment trap. The primary focus of the calibration study is to provide a better calibration of low-latitude environmental conditions and shell chemistry of calcareous microfossils, such as planktic Foraminifera.

  15. Nanomaterial Case Study: A Comparison of Multiwalled ...

    EPA Pesticide Factsheets

    The draft document is intended to be used as part of a process to identify what is known and, more importantly, what is not yet known that could be of value in assessing the broad implications of specific nanomaterials. Like previous case studies (see History/ Chronology below), this draft case study on multiwalled carbon nanotubes (MWCNTs) is based on the comprehensive environmental assessment (CEA) approach, which consists of both a framework and a process. Unlike previous case studies this case study incorporates information about a traditional (i.e., “non-nano-enabled”) product, against which the MWCNT flame-retardant coating applied to upholstery textiles (i.e., the “nano-enabled” product) can be compared. The comparative element serves dual-purposes: 1) to provide a more robust database that facilitates identification of data gaps related to the nano-enabled product and 2) to provide a context for identifying key factors and data gaps for future efforts to evaluate risk-related trade-offs between a nano-enabled and non-nano-enabled product. This draft case study does not represent a completed or even a preliminary assessment of MWCNTs; rather, it uses the CEA framework to structure information from available literature and other resources (e.g., government reports) on the product life cycle, fate and transport processes in various environmental media, exposure-dose characterization, and impacts in human, ecological, and environmental receptors.

  16. U.S.-Japan Relations: The View from Both Sides of the Pacific. Part I, Episodes in the History of U.S.-Japan Relations: Case Studies of Conflict, Conflict Management & Resolution.

    ERIC Educational Resources Information Center

    Mukai, Gary

    This curriculum unit is the first part of a three-part series; it focuses on the theme of conflict. It introduces students to conflict on personal, group, international, and global levels and to basic conflict resolution/management alternatives. Students learn about six categories of conflict through the analysis of episodes in the history of…

  17. THE JEWS IN AMERICAN HISTORY--A RESOURCE BOOK FOR TEACHERS OF SOCIAL STUDIES AND AMERICAN HISTORY.

    ERIC Educational Resources Information Center

    HARTSTEIN, JACOB I.

    A RESOURCE BOOK, PROVIDING AMERICAN HISTORY AND SOCIAL STUDIES TEACHERS WITH APPROPRIATE INFORMATION ABOUT THE PAST AND PRESENT OF JEWS IN AMERICA, IS PRESENTED. THE INFORMATION CAN BE USED IN CONNECTION WITH PROGRAMS, UNITS, AND COURSES IN HISTORY AND INTERCULTURAL EDUCATION. THE FIRST SECTION GIVES AN HISTORIC ACCOUNT OF DIFFERENT PERIODS IN…

  18. Case Studies Reveal Camper Growth.

    ERIC Educational Resources Information Center

    Brannan, Steve; Fullerton, Ann

    1999-01-01

    Case studies in the National Camp Evaluation Project and National Inclusive Camp Practices project used interviews with counselors and parents about camper's growth to yield qualitative data for camp program evaluation. The importance, methods, and benefits of case studies are described. Sidebars give examples of comments on perceived camper…

  19. Three Community College Case Studies

    ERIC Educational Resources Information Center

    Wojtysiak, Joseph; Sutton, William J., II; Wright, Tommy; Brantley, Linda

    2011-01-01

    This article presents three case studies that focus on specific projects that are underway or have been completed. In the first case study, Joseph Wojtysiak and William J. Sutton, II discuss the Green Center of Central Pennsylvania, which is designed to serve as the state's preeminent source for education, training and public information about…

  20. Online Collaborative Case Study Learning

    ERIC Educational Resources Information Center

    Lee, Kathryn

    2007-01-01

    Case study learning was integrated into a course designed to improve students' potential for academic success and increase student retention. Case studies related to self-regulation of behavior, motivation, and cognition for academic tasks were used to prompt students' critical thinking and facilitate deep learning of self-regulation topics,…

  1. The Big Read: Case Studies

    ERIC Educational Resources Information Center

    National Endowment for the Arts, 2009

    2009-01-01

    The Big Read evaluation included a series of 35 case studies designed to gather more in-depth information on the program's implementation and impact. The case studies gave readers a valuable first-hand look at The Big Read in context. Both formal and informal interviews, focus groups, attendance at a wide range of events--all showed how…

  2. Listen Up: Studying the American Labor Movement through Oral Histories

    ERIC Educational Resources Information Center

    Bolick, Cheryl Mason; Norberg, Lisa; Durbin, Dayna

    2007-01-01

    Oral histories are an exciting way to directly involve students in the act of historical inquiry. They assist students in personalizing history and relating to the actual lives behind major events, names, and dates in history. This article discusses the benefits of using oral histories in the classroom. It describes how to use "Oral Histories…

  3. Engendering Curriculum History. Studies in Curriculum Theory Series

    ERIC Educational Resources Information Center

    Hendry, Petra

    2011-01-01

    How can curriculum history be re-envisioned from a feminist, poststructuralist perspective? "Engendering Curriculum History" disrupts dominant notions of history as linear, as inevitable progress, and as embedded in the individual. This conversation requires a history that seeks "rememberance" not representation, "reflexivity" not linearity, and…

  4. Studying Urban History through Oral History and Q Methodology: A Comparative Analysis.

    ERIC Educational Resources Information Center

    Jimenez, Rebecca S.

    Oral history and Q methodology (a social science technique designed to document objectively and numerically the reactions of individuals to selected issues) were used to investigate urban renewal in Waco, Texas. Nineteen persons directly involved in the city's relocation and rehabilitation projects granted interviews. From these oral histories, 70…

  5. Power analysis for case–control association studies of samples with known family histories

    PubMed Central

    Li, Biao; Han, Younghun; Amos, Christopher I.

    2014-01-01

    Genome-wide case–control studies have been widely used to identify genetic variants that predispose to human diseases. Such studies are powerful in detecting common genetic variants with moderate effects, but quickly lose power as allele frequency and genotype relative risk decrease. Because patients with one or more affected relatives are more likely to inherit disease-predisposing alleles of a genetic disease than patients without family histories of the disease, sampling patients with affected relatives almost always increases the frequency of disease predisposing alleles in cases and improves the power of case–control association studies. This paper evaluates the power of case–control studies that select cases and/or controls according to their family histories of disease. Our results showed that this study design can dramatically increase the power of a case–control association study for a wide range of disease types. Because each additional affected relative of a patient reduces the required sample size roughly by a pair of case and control, inclusion of cases with affected relatives can dramatically decrease the required sample size and thus the cost of such studies. PMID:20383776

  6. [Reconstructive strategies in head and neck cancer: case history review from 1992 to 1997 (154 cases)].

    PubMed

    Succo, G; Merlino, G; Pecorari, G C; Liguori, G C; Bergamin, F; Riva, F; Di Lisi, D; Bramardi, F; Magliacani, G; Sartoris, A

    1998-08-01

    Technological progress in reconstructive surgery, in particular the use of pedunculated or free flaps, has given new impetus to head and neck dissection. This stems from the fact that such techniques provide greater oncological radicality, reduce the number of severe post-operative complications and give better quality of life. The present study examines 154 patients suffering from upper aero-digestive tract neoplasms (131 males and 23 females; age range 23-82 years) who had undergone radical surgery. Reconstruction was performed with flaps in 154 cases: 119 pedunculated flaps (102 large myocutaneous pectoral and 17 temporal muscle flaps) and 35 free flaps (18 radial osteofasciocutaneous, 13 radial fasciocutaneous and 4 omentum flaps). Analysis of the individual districts showed that the flap of choice was the temporal muscle flap when surgery involved the soft parts of the orbital-maxilly-zigomatic area and the rhinopharynx. This is because it is highly moldable and reliable. In surgery of the oral cavity and oropharynx the grand pectoral flap is most frequently used as it provides enough tissue for the reconstruction, adequately protects the vascular-nerve axis in the neck and it is quick and easy. However, the functional results are not the best and there is some alteration in the initial phases of deglutition. To reduce these problems, the authors encourage the use of free flaps which provide good results from both the functional and esthetic points of view. They are, however, more difficult to perform and this leads the authors to conclude that they should only be selected for certain patients (long life expectancy, female, young, etc.). In the center where the authors work the flap of choice is the radial fasciocutaneous or osteofasciocutaneous flap. In surgery of the hypopharynx and larynx reconstruction is normally performed with a grand pectoral myocutaneous flap, sculpted as needed for the individual case. In this region, reconstruction proves

  7. Jane: A Case Study in Anorexia Nervosa.

    ERIC Educational Resources Information Center

    Willingham, Barbara

    1988-01-01

    The article reports the case history of a 15-year-old Australian girl with anorexia nervosa. Information is also given on prevalence, causes, definitions, and treatments including hospitalization, co-therapy, psychotherapy, behavior modification, family therapy, and counseling. (DB)

  8. Geostatistical case studies

    SciTech Connect

    Matheron, G.; Armstrong, M.

    1987-01-01

    The objective of this volume of contributed chapters is to present a series of applications of geostatistics. These range from a careful variographic analysis on uranium data, through detailed studies on geologically complex deposits, right up to the latest nonlinear methods applied to deposits with highly skewed data contributions. Applications of new techniques such as the external drift method for combining well data with seismic information have also been included. The volume emphasizes geostatistics in practice. Notation has been kept to a minimum and mathematical details have been relegated to annexes.

  9. Geophysical logging case history of the Raft River geothermal system, Idaho

    SciTech Connect

    Applegate, J.K.; Moens, T.A.

    1980-04-01

    Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysical logging program. There is no comprehensive report on the geophysical logging, nor has there been a complete interpretation. The objectives of this study are to make an integrated interpretation of the available data and compile a case history. Emphasis has been on developing a simple interpretation scheme from a minimum of data sets. The Raft River geothermal system occurs in the Raft River Valley, which is a portion of the Basin and Range geomorphic province located in south central Idaho, south of the Snake River Plain. The valley is a late Cenozoic structural downwarp bounded by faults on the west, south, and east. The downwarp is filled with Tertiary and Paleozoic sediments, metasediments, and volcanics that overlie Precambrian rocks. The variety of rock types, the presence of alteration products, and the variability of fracturing make reliable interpretations difficult. However, the cross plotting of various parameters has allowed a determination of rock types and an analysis of the degree of alteration and the density of fractures. Thus, one can determine the relevant data necessary to assess a geothermal reservoir in similar rock types and use cross plots to potentially define the producing zones.

  10. Case Studies in Science Ethics

    NASA Astrophysics Data System (ADS)

    Williams, Karen

    2010-03-01

    Everyone in science should have ethics education training. I have seen graduate students taken advantage of by their mentors. Many of us have seen misconduct...but what should we do about it? Young scientists are often unaware of the rules in science and make mistakes because of their ignorance of the rules in that particular field of study. Then there are an increasing number of cases in the news of overt cases of misrepresentation in science. All are welcome to attend this discussion of case studies. A case study on topics such as: how to treat data properly, how our values in science affect our work, who gets authorship on scientific papers, who is first author on a paper, what you should do if you uncover misconduct or plagiarism in your university, and we will discuss the scientist's role in society. This will be a painless, non-confrontational small group, then large group discussion of each case

  11. Case study: a patient's survival.

    PubMed

    Nauer, K A; Kramer, L; Lockard, K L

    2000-05-01

    Presentation of a case study involving a female patient, in her 20s, undergoing routine surgery for removal of atrial myxoma leading to a heart transplant. This case study will show the progression from postcardiotomy failure, the emergent use of the extracorporeal membrane oxygenator device, the insertion of the HeartMate device, and the final return to the operating room for a heart transplant. The case study will examine the physiologic demands on the patient, as well as the psychological effects from the various life-saving devices.

  12. Uncommon case of brain metastasis in a patient with a history of heavy smoking.

    PubMed

    Scharl, M; Bode, B; Rushing, E; Knuth, A; Rordorf, T

    2014-10-01

    Primary sarcomas of the aorta are extremely uncommon. Depending on histomorphology and immunohistochemical pattern, intimal sarcomas can show angiosarcomatous differentiation. Here, we describe the case of a 60-year-old woman with a primary intimal sarcoma of the aortic arch and signs of cerebral metastatic disease as the initial manifestation. After the patient experienced the onset of severe headaches, ataxia, and left-sided weakness, magnetic resonance imaging showed several brain lesions. Histologic assessment of a brain biopsy specimen revealed a malignant tumour composed of large pleomorphic cells that were positive for pancytokeratin and CD10. Radiation to the brain did not significantly improve the patient's symptoms, and cranial computed tomography (ct) imaging revealed several metastases, indicating lack of response. Because of the patient's smoking history, the presence of central nervous system and skeletal metastases on combined positron-emission tomography and ct imaging, and the focal pan-cytokeratin positivity of the tumour, carcinoma of the lung was favoured as the primary tumour. Despite chemotherapy with cisplatin and etoposide, the patient's neurologic symptoms and general condition deteriorated rapidly, and she died within a few days. At autopsy, an undifferentiated intimal sarcoma of the aortic arch was diagnosed. The primary tumour in the aorta consisted of large pleomorphic cells. Immunohistochemical analysis of the aortic tumour and brain metastases demonstrated diffuse positivity for vimentin and p53 and focal S-100 staining. In summary, we report a challenging case of advanced intimal sarcoma of the aortic arch with brain and bone metastases at initial presentation. Our report demonstrates the difficulties in diagnosing and treating this disease, and the need for multicentre studies to accrue more patients for investigations of optimal therapy.

  13. Uncommon case of brain metastasis in a patient with a history of heavy smoking

    PubMed Central

    Scharl, M.; Bode, B.; Rushing, E.; Knuth, A.; Rordorf, T.

    2014-01-01

    Primary sarcomas of the aorta are extremely uncommon. Depending on histomorphology and immunohistochemical pattern, intimal sarcomas can show angiosarcomatous differentiation. Here, we describe the case of a 60-year-old woman with a primary intimal sarcoma of the aortic arch and signs of cerebral metastatic disease as the initial manifestation. After the patient experienced the onset of severe headaches, ataxia, and left-sided weakness, magnetic resonance imaging showed several brain lesions. Histologic assessment of a brain biopsy specimen revealed a malignant tumour composed of large pleomorphic cells that were positive for pancytokeratin and CD10. Radiation to the brain did not significantly improve the patient’s symptoms, and cranial computed tomography (ct) imaging revealed several metastases, indicating lack of response. Because of the patient’s smoking history, the presence of central nervous system and skeletal metastases on combined positron-emission tomography and ct imaging, and the focal pan-cytokeratin positivity of the tumour, carcinoma of the lung was favoured as the primary tumour. Despite chemotherapy with cisplatin and etoposide, the patient’s neurologic symptoms and general condition deteriorated rapidly, and she died within a few days. At autopsy, an undifferentiated intimal sarcoma of the aortic arch was diagnosed. The primary tumour in the aorta consisted of large pleomorphic cells. Immunohistochemical analysis of the aortic tumour and brain metastases demonstrated diffuse positivity for vimentin and p53 and focal S-100 staining. In summary, we report a challenging case of advanced intimal sarcoma of the aortic arch with brain and bone metastases at initial presentation. Our report demonstrates the difficulties in diagnosing and treating this disease, and the need for multicentre studies to accrue more patients for investigations of optimal therapy. PMID:25302044

  14. The natural history of idiopathic scoliosis. A study of the incidence of treatment.

    PubMed

    Montgomery, F; Willner, S

    1988-04-01

    The natural history of idiopathic scoliosis has been studied between 1969 and 1985 in a well-controlled population of school children, 66,200 cases, between 7 and 16 years of age. The incidence of scoliosis needing treatment (25 degrees or more in progress in growing children) was studied with a cross-sectional as well as a longitudinal survey. When using a cross-sectional technique, a decrease of cases being treated was seen after the introduction of a conventional screening program--thus indicating a change in the natural history of moderate scoliosis. This could, however, be explained by the consequence of an accumulation of treated cases, formerly diagnosed and treated later on, seen immediately after the introduction of screening. When the longitudinal method was used, this trend could not be observed. And finally, when taking changes of indication of treatment and of the population into consideration, no tendency at all toward a change in the natural history could be seen.

  15. [Critical comments on a case history "a death case involving tilidine" (author's transl)].

    PubMed

    Klapetek, J

    1978-02-21

    The author looks critically at the description of a suicide case involving a barbiturate dose that could not be determined exactly and doses of hydroxyzine and tilidine. Drugs with a short and a medium short duration of action obviously had the greatest effect. There was no description of an investigation of the gastric contents. The concentration of barbiturates in the blood alone was sufficient to cause death. The deceased also took hydroxyzine, and then finally 750 mg tilidine in capsule form. Tilidine's action is relatively slow in onset. The author discusses tilidine's possible contribution to the cause of death and comes to a different conclusion from the authors of the case report, especially as regards the key words "Tilidine--Intoxication". The authors of the case report ought to have called it "A Death Case Involving Barbiturates, Hydroxyzine and Tilidine" rather than giving is such a suggestive title as "A Death Case Involving Tildine". This would have been a more accurate representation of the facts and would have assisted the reader to grasp the complex toxicological situation more clearly.

  16. HYDROGEOLOGIC CASE STUDIES (DENVER PRESENTATION)

    EPA Science Inventory

    Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

  17. Hydrogeologic Case Studies (Seattle, WA)

    EPA Science Inventory

    Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

  18. HYDROGEOLOGIC CASE STUDIES (CHICAGO, IL)

    EPA Science Inventory

    Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

  19. Teaching astronomy with case studies

    NASA Astrophysics Data System (ADS)

    Slater, Timothy F.

    2015-11-01

    Breaking the students into small, collaborative learning groups to solve a meaningful task together is one of the most successful and fully evaluated teaching techniques implemented over the last century. Although there are many ways to accomplish small group learning, a long-standing and consistently successful collaborative class activity is to use the case study teaching strategy. The use of case studies is common in medical schools and law schools, but not so common in the teaching of astronomy. Case studies create meaningful conversations among students and with the professor by focusing on life-like dilemmas to be solved. Case study tasks ask audience members to synthesize several ideas or evaluate scenarios that have not been explicitly presented to them in the lecture or in available readings.

  20. Nasopharyngeal Case-Control Study

    Cancer.gov

    A case-control study conducted in Taiwan between 1991-1994 among approximately 1,000 individuals to examine the role of viral, environmental, and genetic factors associated with the development of nasopharyngeal carcinoma

  1. Case Study: del Amo Bioventing

    EPA Science Inventory

    The attached presentation discusses the fundamentals of bioventing in the vadose zone. The basics of bioventing are presented. The experience to date with the del Amo Superfund Site is presented as a case study.

  2. Prostate Cancer in a Patient with a Family History of BRCA Mutation: a Case Report and Literature Review

    PubMed Central

    2017-01-01

    One of the most significant risk factors for prostate cancer (PC) is a family history of the disease, with germ-line mutations in the breast cancer predisposition gene (BRCA) 2 conferring the highest risk. We here report a 56-year-old man presented with painful gait disturbance and diagnosed PC with multiple disseminated bone metastases. The patient had a strong family history of breast cancer with his 2 nieces affected. Furthermore, his aunts and uncles from both sides were diagnosed with stomach, ovarian, and colorectal cancers. His genomic sequencing analysis of the BRCA genes revealed the same BRCA2 deleterious mutation that his breast cancer-affected nieces carried. Previous studies have suggested that BRCA2-mutated PC is associated with a more aggressive phenotype and poor prognosis. Our experience in the present case also indicated the urgent needs for novel treatment modality and PC screening in this high-risk group of patients. PMID:28049253

  3. Prostate Cancer in a Patient with a Family History of BRCA Mutation: a Case Report and Literature Review.

    PubMed

    Song, Won Hoon; Kim, Sung Han; Joung, Jae Young; Park, Weon Seo; Seo, Ho Kyung; Chung, Jinsoo; Lee, Kang Hyun

    2017-02-01

    One of the most significant risk factors for prostate cancer (PC) is a family history of the disease, with germ-line mutations in the breast cancer predisposition gene (BRCA) 2 conferring the highest risk. We here report a 56-year-old man presented with painful gait disturbance and diagnosed PC with multiple disseminated bone metastases. The patient had a strong family history of breast cancer with his 2 nieces affected. Furthermore, his aunts and uncles from both sides were diagnosed with stomach, ovarian, and colorectal cancers. His genomic sequencing analysis of the BRCA genes revealed the same BRCA2 deleterious mutation that his breast cancer-affected nieces carried. Previous studies have suggested that BRCA2-mutated PC is associated with a more aggressive phenotype and poor prognosis. Our experience in the present case also indicated the urgent needs for novel treatment modality and PC screening in this high-risk group of patients.

  4. Red blood cell folate levels in pregnant women with a history of mood disorders: a case series

    PubMed Central

    Yaremco, Elyse; Inglis, Angela; Innis, Sheila M.; Hippman, Catriona; Carrion, Prescilla; Lamers, Yvonne; Honer, William G.; Austin, Jehannine

    2014-01-01

    Objective Maternal folate supplementation reduces offspring risk for neural tube defects (NTDs) and other congenital abnormalities. Maternal red blood cell (RBC) folate concentrations of >906nmol/L have been associated with the lowest risk of having an NTD affected pregnancy. Mood disorders (e.g. depression, bipolar disorder) are common among women and can be associated with folate deficiency. Thus, pregnant women with histories of mood disorders may be prone to RBC folate levels insufficient to provide optimal protection against NTDs. While previous studies have assessed RBC folate concentrations in pregnant women from the general population, none have looked specifically at a group of pregnant women who have a history of a mood disorder. Methods We collected data about RBC folate concentrations and folic acid supplement intake during early pregnancy (<161days gestation) from n=24 women with histories of mood disorders. We also collected information about offspring congenital abnormalities and birthweight. Results Among women with histories of mood disorders, the mean RBC folate concentration was 674 nmol/L (range: 362 –1105nmol/L). Only 12.5% (n=3) of the women had an RBC folate concentrations >906nmol/L, despite all participants reporting current daily use of folic acid supplements. Data regarding offspring were available for 22 women: birthweights ranged from 2296g to 4819g, and congenital abnormalities were identified in two (hypoplastic left heart, annular pancreas). Conclusion Data from this exploratory case series suggest a need for future larger scale controlled studies investigating RBC folate concentrations in early pregnancy and offspring outcomes among women with and without histories of mood disorders. PMID:23760977

  5. The Idea of America: A Case Study Approach

    ERIC Educational Resources Information Center

    White, William E.; Hartoonian, H. Michael; van Scotter, Richard; Davis, James E.

    2007-01-01

    It is often difficult for Americans to find the secrets for addressing issues relevant to the contemporary United States. However, in every generation, individual citizens in their communities, states, and national institutions have debated values that are central to the nation. By studying American history as a sequence of case studies, students…

  6. History of Physics as a Tool to Detect the Conceptual Difficulties Experienced by Students: The Case of Simple Electric Circuits in Primary Education

    ERIC Educational Resources Information Center

    Leone, Matteo

    2014-01-01

    The present paper advocates the use of History of Science into the teaching of science in primary education through a case study in the field of electricity. In this study, which provides both historical and experimental evidence, a number of conceptual difficulties faced by early nineteenth century physicists are shown to be a useful tool to…

  7. Therapeutic Intervention in a Case of Ataxic Dysarthria Associated with a History of Amateur Boxing

    ERIC Educational Resources Information Center

    McMicken, Betty L.; Ostergren, Jennifer A.; Vento-Wilson, Margaret

    2011-01-01

    The goals of this study were to (a) describe the presenting features of ataxic dysarthria present in a participant with a long history of amateur boxing, (b) describe a novel application of behavioral principles in the treatment of this participant, and (c) discuss implications in the treatment of ataxic dysarthria secondary to boxing. The…

  8. Curriculum Reform and Teacher Autonomy in Turkey: The Case of the History Teaching

    ERIC Educational Resources Information Center

    Ozturk, Ibrahim Hakki

    2011-01-01

    In recent years, the curriculum programs have been changed dramatically in Turkey, as part of a comprehensive reform initiative. The history curriculum for secondary schools was subjected to this transformation as well. This study examines the curriculum reform in terms of teacher autonomy, a key-concept for the comprehension and improvement of…

  9. Bridging the Two Cultures: The Case of Science and Natural History Filmmaking

    ERIC Educational Resources Information Center

    Metz, Walter C.

    2007-01-01

    At Montana State University's Master of Fine Arts program in Science and Natural History Filmmaking, our goal is to re-invent these areas of documentary by admitting students with undergraduate science degrees and teaching them both production and film studies in an intensive three-year curriculum. In the course I teach, "Criticism and…

  10. High School Textbooks in Turkey from Teachers' and Students' Perspectives: The Case of History Textbooks

    ERIC Educational Resources Information Center

    Yildirim, Ali

    2006-01-01

    This study investigates how teachers and students assess the textbooks they use in history courses at the high school level in Turkey. Through a survey questionnaire, teachers and students were asked their perceptions of the textbooks. Then a sub-sample of the teachers and students were interviewed to collect more in-depth data on their assessment…

  11. Forms of Discourse and the Sciences of the Mind: Luria, Sacks, and the Role of Narrative in Neurological Case Histories.

    ERIC Educational Resources Information Center

    Journet, Debra

    1990-01-01

    Discusses two sets of neurological case histories: A. R. Luria's "The Man with a Shattered World," and Oliver Sack's "Awakenings." Argues that these histories display two paradigmatic explanations for the mind/brain relation, and that the movement from one paradigm to another also necessitates a movement to different forms of…

  12. Environmental and Personality Similarities in Case Histories of Suicide and Self-Poisoning by Children under Ten.

    ERIC Educational Resources Information Center

    Corder, Billie F.; Haizlip, Thomas M.

    1984-01-01

    Research on suicide in latency age children is reviewed and case histories of two nine-year-old children who suicided by shooting themselves and one seven-year-old who died by self-poisoning are presented. Similarities in environmental and family histories and in personality variables are discussed. (Author/BL)

  13. Limited significance of family history for presence of BRCA1 gene mutation in Polish breast and ovarian cancer cases.

    PubMed

    Brozek, Izabela; Ratajska, Magdalena; Piatkowska, Magdalena; Kluska, Anna; Balabas, Aneta; Dabrowska, Michalina; Nowakowska, Dorota; Niwinska, Anna; Rachtan, Jadwiga; Steffen, Jan; Limon, Janusz

    2012-09-01

    It is estimated that about 5-10% of ovarian and 2-5% of all breast cancer patients are carriers of a germline BRCA1 or BRCA2 gene mutation. Most families with detected BRCA1 or BRCA2 gene mutation are qualified for molecular testing on the basis of family history of breast or ovarian cancers. The purpose of our study was to establish the frequency of positive family history of cancer in a series of Polish consecutive breast and ovarian cancer patients in two groups, with and without the BRCA1 gene mutations. We analysed the prevalence of four of the most common BRCA1 mutations: 5382insC (c.5266dupC), 300T>G (p.181T>G), 185delAG (c.68_69delAG) and 3819del5 (c.3700_3704del5). The patient group consisted of 1,845 consecutive female breast and 363 ovarian cancer cases. 19 out of 37 (51%) of BRCA1-positive ovarian cancer patients and 21 out of 55 (39%) BRCA1-positive breast cancer had negative family history of breast and/or ovarian cancer among first- and second-degree relatives. In ovarian cancer patients, negative family history was more frequent in those with 300T>G BRCA1 gene mutation than in 5382insC carriers. This finding indicates the necessity of searching for 300T>G mutation in families with a single diagnosis of ovarian cancer in family. The high frequency of mutations detected in breast cancer patients lacking obvious family history shows that breast cancer patients should be qualified for genetic testing on the basis of wide clinical and pathological criteria.

  14. Rigless multizone recompletion using a cement packer placed with coiled tubing: A case history

    SciTech Connect

    Nowak, T.W.; Patout, T.S.

    1997-12-01

    Cement packers have been used for some time when reserve estimates have not justified the cost of major rig remedial work. They typically provide a means of zonal isolation of the last reserves in an existing wellbore. The success of these operations has historically been low. This is predominantly because of poor cement bonding in the annulus between the tubing and production casing. Because of the minimal amount of equipment on location and lack of upfront design work involved, most cement packers are doomed to failure before they are even placed. Cement packers have been placed using a large number of methods. In the Ship Shoal 181 field, Well B-4 would not economically justify a major rig workover, even though there were several uphole gas sands capable of producing in this well. With proper upfront planning and design, it would be economical; however, all these reserves could be produced in a through-tubing process using a cement packer. This case history presents a refined look at existing technology involving placement of a cement packer and reviews problems common to cement-packer completions, including a case history. Solutions are also discussed for successfully completing and recovering reserves from not one but several remaining gas intervals. This paper reviews the design considerations and precautions, along with the production results and economics, for placing what is believed to be the largest cement packer placed through coiled tubing.

  15. Case studies in working memory: a case for single cases?

    PubMed

    Della Sala, S; Logie, R H; Marchetti, C; Wynn, V

    1991-06-01

    Patterns of cognitive deficit in single neuropsychological cases are common sources of evidence for theories of normal cognition. In particular, the working memory model has benefited from data obtained from a number of contrasting patients, in some cases resulting in modifications of the working memory model. In this paper, patterns of data from short-term memory patients and anarthric patients are compared with patterns of data from normal subjects. The patterns of patient data that were unlike those patterns typically found for groups of normal subjects, could be incorporated within a modified version of the articulatory loop component of the working memory model. However a small number of individual normal subjects also did not show the pattern that is reported on the basis of average performance of groups of normal subjects. This causes some difficulty in interpreting those data from such 'aberrant normal' patterns, and those data from single patients with functional cognitive deficits. The implications of these findings for the interpretation of neuropsychological data are discussed in the context of the working memory model, but with the intention of making a general point pertaining to the development of functional models of cognition. It is argued that single case studies should continue to provide a useful source of evidence, providing that care is exercised in considering the implications of such data for models of normal cognition.

  16. Case histories portraying different methods of installing liners for verticle barriers

    SciTech Connect

    Burke, G.K.; Crockford, R.M.; Achhorner, F.N.

    1997-12-31

    The installation of liners for vertical barriers is difficult and has been a learning experience for every contractor making the attempt. Soil stratigraphy and hydrogeologic conditions can vary over short distances, creating a variety of problems. This is particularly so when working near landfills and documentation of the as-built condition is poor. Successful installation requires detailed planning and knowledge of what to expect, as well as alternate plans for potential problems. Several successful methods of panel connection will be presented as well as a variety of installation techniques. Project case histories will be reviewed, highlighting the challenges associated with specific construction techniques.

  17. Layer definition and pressure buildup case histories in a carbonate reservoir

    SciTech Connect

    Vadgama, U.N.; Arifi, N.A.

    1981-01-01

    This paper presents case histories of pressure buildup analysis in a layered carbonate reservoir (Zella/Aswad Fields in the Socialist People's Libyan Arab Jamahiria). The productive formation consists of several dolomite and limestone layers separated by thin tight streaks. Lack of pressure communication between layers has been determined by pressure measurements in the individual layers using the Repeat Formation Tester (RFT). Results of the two-dimensional radial model simulated pressure buildup performance are compared to the actual measured pressure buildup data. 14 refs.

  18. Magnetic bearing turbomachinery case histories and applications for space related equipment

    NASA Technical Reports Server (NTRS)

    Weise, David A.

    1993-01-01

    The concept of magnetic levitation is not a new one and can be easily traced back to the 1800's. It is only recently, however, that the congruous technologies of electronic control systems, power electronics, and magnetic materials have begun to merge to make the magnetic suspension device a viable product. A brief overview of an active magnetic bearing technology is provided. Case histories of various turbomachinery in North America presently operating on magnetic bearings are reviewed. Finally, projections are made as to the space related machinery that may be benefited by incorporating magnetic bearings into the equipment design.

  19. Genetics, history, and identity: the case of the Bene Israel and the Lemba.

    PubMed

    Parfitt, Tudor; Egorova, Yulia

    2005-06-01

    The paper examines the impact of genetic research on the religious identity of the Bene Israel Indian Jewish community and the Lemba Judaising group of southern Africa. It demonstrates how DNA tests which happened to support the possibility of the communities' legends of origin affected their self-perception, the way they are viewed by their neighbors, and their image in the West. It is argued that in both cases what accounted most for the Bene Israel and Lemba responses to the tests was the way the results were portrayed in the mass media, the history of the development of Judaism in their communities, and the local realities.

  20. Factors Influencing Bachelor of Education Arts Students' Selection of History as Career Subject: Case of University of Nairobi, Kenya

    ERIC Educational Resources Information Center

    Owino, Joseph Ogutu; Odundo, Paul Amolloh

    2016-01-01

    History is one of the teaching subjects studied by Bachelor of Education Arts students at the University of Nairobi. In the last five years, there has been a tremendous increase in the number of students specializing in History as a teaching subject. This paper therefore has examined factors influencing students' selection of History as career…

  1. History Wars and the Classroom: Global Perspectives. Studies in the History of Education

    ERIC Educational Resources Information Center

    Taylor, Tony, Ed.; Guyver, Robert, Ed.

    2012-01-01

    The book is entitled History Wars in the Classroom: Global Perspectives and examines how ten separate countries have experienced debates and disputes over the contested nature of the subject, for example the "Black Armband" and "Whitewash" factions in Australia who adopt opposingly celebratory or denigratory views of Australian…

  2. CFS: A Review of Epidemiology and Natural History Studies

    PubMed Central

    Jason, Leonard A.; Porter, Nicole; Brown, Molly; Anderson, Valerie; Brown, Abigail; Hunnell, Jessica; Lerch, Athena

    2010-01-01

    Almost all studies with samples of patients who have chronic fatigue syndrome (CFS) have relied on referrals from physicians or health facilities. Under-served minorities, who not only tend to manifest higher levels of chronic illness, but are also less likely to seek and receive adequate medical care, have not been represented in these studies (1). This may have contributed to an under-estimation of CFS among minority groups (2). Few studies have derived their samples from socioeconomically and ethnically diverse community-based populations. A technical report issued by the Agency for Healthcare Research and Quality (3) concluded that estimating rates of recovery/improvement or relapse from CFS are not possible because there are so few natural history studies and those that are available have involved selected referral populations. This paper provides a review of epidemiologic studies of CFS followed by a discussion of diagnostic issues and risk factors for the illness. Findings from Jason et al.’s (4) epidemiologic study in a multi-ethnic, economically diverse urban area are highlighted as this research group is now examining the natural course of CFS over the past 10 years with this community-based sample. The current study will add to current epidemiologic and risk factors research by assessing the course, progression, and risk factors of CFS among a demographically diverse sample of participants who are unbiased by illness, help-seeking behaviors, or differential access to the health care system. PMID:21243091

  3. Natural History of Asymptomatic and Unrepaired Vascular Rings: Is Watchful Waiting a Viable Option? A New Case and Review of Previously Reported Cases

    PubMed Central

    Loomba, Rohit S.

    2016-01-01

    Vascular rings are a rare form of congenital heart disease in which abnormal aortic arch anatomy leads to encircling of the esophagus and/or trachea by the aortic vasculature. Symptoms can develop from this and prompt the need for surgery. A natural history study has been done on mildly symptomatic patients but no such study has been done on asymptomatic patients. We present a case report of three children with asymptomatic vascular rings who continue to receive follow-up without intervention and review all published cases of asymptomatic or unrepaired vascular rings. Clinical observation of asymptomatic and mildly symptomatic vascular rings, regardless of aortic arch anatomy, seems to be a safe approach. Children with mild symptoms almost invariably seem to have resolution of their symptoms by four years of age. PMID:28009833

  4. [Study of measles history, vaccination, antibody status, and vaccination effectiveress for school teachers].

    PubMed

    Ichinohe, Sadato; Ogawa, Tomoko

    2011-05-01

    To determine an efficient measles vaccination program for school teachers, we studied knowledge about measles history, immunization, and immunity status among 269 school teachers in Ichihara City in 2009. We found that (1) many are uncertain about disease and immunization history, with neither history related to the immunity status of neutralizing antibody titer (NT), (2) particle agglutination (PA) and enzyme immunoassay (EIA) testing have replaced NT in commercial laboratories, but persons having antibodies fewer than 8-fold of the NT titer as a sensitivity desigration for measles, and 11 false-positive immunity results are indicated in PA testing (cutoff: 256-fold) and 140 false-positive sensitivity results in EIA testing (cutoff: 16.0 EIA), and (3) sensitivity cases are 7.1% in the naturally infected generation born before 1977 and 23.7% in the vaccinated generation born after 1978. Given "herd" immunity, we concluded that all vaccinated-generation persons should be administered additional vaccination regardless of sensitivity due to history, immunization, and PA or EIA antibody testing.

  5. Teaching Case: Enterprise Architecture Specification Case Study

    ERIC Educational Resources Information Center

    Steenkamp, Annette Lerine; Alawdah, Amal; Almasri, Osama; Gai, Keke; Khattab, Nidal; Swaby, Carval; Abaas, Ramy

    2013-01-01

    A graduate course in enterprise architecture had a team project component in which a real-world business case, provided by an industry sponsor, formed the basis of the project charter and the architecture statement of work. The paper aims to share the team project experience on developing the architecture specifications based on the business case…

  6. Understanding asteroid collisional history through experimental and numerical studies

    NASA Technical Reports Server (NTRS)

    Davis, Donald R.; Ryan, Eileen V.; Weidenschilling, S. J.

    1991-01-01

    Asteroids can lose angular momentum due to so called splash effect, the analog to the drain effect for cratering impacts. Numerical code with the splash effect incorporated was applied to study the simultaneous evolution of asteroid sized and spins. Results are presented on the spin changes of asteroids due to various physical effects that are incorporated in the described model. The goal was to understand the interplay between the evolution of sizes and spins over a wide and plausible range of model parameters. A single starting population was used both for size distribution and the spin distribution of asteroids and the changes in the spins were calculated over solar system history for different model parameters. It is shown that there is a strong coupling between the size and spin evolution, that the observed relative spindown of asteroids approximately 100 km diameter is likely to be the result of the angular momentum splash effect.

  7. Retesting of liquefaction and nonliquefaction case histories from the 1976 Tangshan earthquake

    USGS Publications Warehouse

    Moss, R.E.S.; Kayen, R.E.; Tong, L.-Y.; Liu, S.-Y.; Cai, G.-J.; Wu, J.

    2011-01-01

    A field investigation was performed to retest liquefaction and nonliquefaction sites from the 1976 Tangshan earthquake in China. These sites were carefully investigated in 1978 and 1979 by using standard penetration test (SPT) and cone penetration test (CPT) equipment; however, the CPT measurements are obsolete because of the now nonstandard cone that was used at the time. In 2007, a modern cone was mobilized to retest 18 selected sites that are particularly important because of the intense ground shaking they sustained despite their high fines content and/or because the site did not liquefy. Of the sites reinvestigated and carefully reprocessed, 13 were considered accurate representative case histories. Two of the sites that were originally investigated for liquefaction have been reinvestigated for cyclic failure of fine-grained soil and removed from consideration for liquefaction triggering. The most important outcome of these field investigations was the collection of more accurate data for three nonliquefaction sites that experienced intense ground shaking. Data for these three case histories is now included in an area of the liquefaction triggering database that was poorly populated and will help constrain the upper bound of future liquefaction triggering curves. ?? 2011 American Society of Civil Engineers.

  8. Negotiating Inequality among Adult Siblings: Two Case Studies

    ERIC Educational Resources Information Center

    Connidis, Ingrid Arnet

    2007-01-01

    Qualitative instrumental case study analysis of adult siblings from 2 families explores how socioeconomic inequality among them affects their relationships to one another. Eight middle-aged siblings' observations of childhood, parental expectations, work and family history, lifestyle, and current sibling ties indicate that childhood…

  9. The Effects of Macroglossia on Speech: A Case Study

    ERIC Educational Resources Information Center

    Mekonnen, Abebayehu Messele

    2012-01-01

    This article presents a case study of speech production in a 14-year-old Amharic-speaking boy. The boy had developed secondary macroglossia, related to a disturbance of growth hormones, following a history of normal speech development. Perceptual analysis combined with acoustic analysis and static palatography is used to investigate the specific…

  10. Nonverbal Learning Disabilities: The Syndrome and a Case Study.

    ERIC Educational Resources Information Center

    Rourke, Byron P.; And Others

    1990-01-01

    Presents syndrome of nonverbal learning disabilities (NLD) and model developed to encompass its complex manifestations. Includes history of development of syndrome, types of children in whom its principal features are manifest, hypothesized neurological bases of syndrome, and test of its developmental dimensions. Provides case study and discusses…

  11. Peter Heller's a Child Analysis with Anna Freud: the significance of the case for the history of child psychoanalysis.

    PubMed

    Midgley, Nick

    2012-02-01

    A Child Analysis with Anna Freud, a collection of Anna Freud's detailed case notes of her treatment of the young Peter Heller between 1929 and 1932, was first published in English in 1990. Not only does this work give us direct access to Anna Freud's ways of thinking and working at a crucial period in the early history of child analysis; it is also one of the few records of an adult reflecting in depth on the experience of being in analysis as a child. Yet to date this work has received little attention in the psychoanalytic literature. In an attempt to redress this neglect, the Heller case study is placed in the context of Anna Freud's emerging ideas about child analysis. In particular, its significance in the development of her psychoanalytic thinking is investigated in the light of her 1927 book, The Technique of Child Analysis.

  12. Teaching the Japanese American Internment: A Case Study of Social Studies Curriculum Conflict and Change

    ERIC Educational Resources Information Center

    Camicia, Steven P.

    2009-01-01

    This article examines a case of curriculum conflict in order to understand how the social studies curriculum is changed by such conflicts. In the case, a small group of activists challenged a local sixth grade history curriculum, which claimed that the WWII internment of Japanese Americans was a mistake. Activists claimed that the internment was…

  13. Case Study: Planning as Learning

    ERIC Educational Resources Information Center

    Smith, Peter A. C.

    2007-01-01

    Proposes that the objectives of strategic planning may be attained more effectively if implemented via a learning paradigm. In support of this claim, describes a case study detailing implementation of such an initiative plus post-implementation interviews. (Contains 5 figures.)

  14. The Case Study of Frank

    ERIC Educational Resources Information Center

    Eynde, Peter Op't; Hannula, Markku S.

    2006-01-01

    As a unifying feature of this Special Issue, we have asked proponents of each framework to analyse an empirical classroom account of one student's process of solving a mathematical problem. Here, for the case study of "Frank", we give the main data that were available to all authors.

  15. Case Studies in Sports Nutrition.

    ERIC Educational Resources Information Center

    Clark, Nancy

    1988-01-01

    This article presents case studies of two athletes who wanted to affect a change in their body weight in order to enhance athletic performance. Each athlete's problem and the nutrition approach used to solve it are discussed. Caloric values of fast foods are listed. (JL)

  16. Principal Succession: A Case Study.

    ERIC Educational Resources Information Center

    Jones, Jeffery C.; Webber, Charles F.

    Principal succession is misunderstood and underutilized as a means of affecting dynamic renewal in school communities. Previously, the replacement of a principal was examined solely through the experiences of principals and teachers. This paper reports on a case study that added the previously neglected perspectives of students, support staff, and…

  17. Case Studies in Broadcast Management.

    ERIC Educational Resources Information Center

    Coleman, Howard W.

    This collection of case studies, based on factual situations which have challenged broadcast managers in recent years, is designed to stimulate thinking about and solving of "real world" problems in commercial radio and television operations. Topics of a serious, long-run nature include enlarging the radio audience; station revenue and economy;…

  18. The Language Dilemma: Case Study.

    ERIC Educational Resources Information Center

    Teboul, J. C. Bruno

    2002-01-01

    Presents the case study involving a fictitious company's English-only policy and threats of legal action based on that policy. Includes the following responses: "Legal Issues Posed in the Language Dilemma" (Gregory S. Walden); "English Only: A Workplace Dilemma" (Alan Pakiela); "Problems with English-Only Policies" (Barbara Lynn Speicher); and…

  19. Case Studies in Applied Mathematics.

    ERIC Educational Resources Information Center

    Mathematical Association of America, Washington, DC.

    This collection of nine case studies in applied mathematics was written primarily for the use of the instructor by a Conference sponsored by the Committee on the Undergraduate Program in Mathematics (CUPM). Each chapter contains exercises of varying degrees of difficulty and several include student projects. The materials were used on a trial…

  20. Due Process Hearing Case Study

    ERIC Educational Resources Information Center

    Bateman, David F.; Jones, Marni Gail

    2010-01-01

    This article presents a due process hearing case study of a mother who contended that his son, D.J., has been denied of a free and appropriate public education (FAPE) of his School District after being suspended from school. D.J., an elementary student, had been described as hyperactive, inattentive, defiant, and often volatile. He was identified…

  1. Medieval History Lives: Techniques to Revive Medieval Studies.

    ERIC Educational Resources Information Center

    Ostrand, Kenneth D.

    1980-01-01

    Discusses reasons for and solutions to declining enrollment in college history courses. Suggests that instructors be aware of the mental diversity of students and involve them in what is going on in the profession. Methods include trips, speakers, a newsletter, festivals, and research. Specific topics for medieval history are presented. (KC)

  2. Black History and Culture. Ideas and Activities for Studying.

    ERIC Educational Resources Information Center

    Stanton, Roland; And Others

    This booklet contains information, ideas, and activities to help schools celebrate Black History Week. It is devoted to black achievements in the areas of music, politics, and business with the intention of developing respect for, awareness of, and a sense of the relationship between past and present events in the history of black Americans. There…

  3. Historians or History Teachers? A Qualitative Study in Pedagogical Formation Program in Turkey

    ERIC Educational Resources Information Center

    Ünisen, Ali

    2016-01-01

    This study aims to determine how the history teaching career is perceived by prospective history teachers who attended the pedagogical formation program in Adiyaman University in 2014-2015 academic year. The study was conducted through content analysis of 5 sets of essays dealing with various aspects of history teaching. The essays topics were…

  4. Non-Hodgkin's lymphoma: case control epidemiological study in Yorkshire.

    PubMed

    Cartwright, R A; McKinney, P A; O'Brien, C; Richards, I D; Roberts, B; Lauder, I; Darwin, C M; Bernard, S M; Bird, C C

    1988-01-01

    This paper reports the results of a case control study of non-Hodgkin's lymphoma in the Yorkshire Health Region. In all, 437 cases and 724 controls were interviewed. Risk factors associated with past skin conditions, family history of cancer and infectious mononucleosis, aspects of social life and contact with wood dust and epoxy glues all emerge. A comparison of high and low grade morphological forms of disease reveal contrasting risks and suggest separate aetiologies for these conditions.

  5. New technologies applied to family history: a particular case of southern Europe in the eighteenth century.

    PubMed

    García, Manuel Pérez

    2011-01-01

    In this article, the author explains how the support of new technologies has helped historians to develop their research over the last few decades. The author, therefore, summarizes the application of both database and genealogical programs for the southern Europe family studies as a methodological tool. First, the author will establish the importance of the creation of databases using the File Maker program, after which they will explain the value of using genealogical programs such as Genopro and Heredis. The main aim of this article is to give detail about the use of these new technologies as applied to a particular study of southern Europe, specifically the Crown of Castile, during the late modern period. The use of these computer programs has helped to develop the field of social sciences and family history, in particular, social history, during the last decade.

  6. Two Case Studies of Beginning Teachers in State-Mandated Induction Programs: The Influence of Institutional Factors.

    ERIC Educational Resources Information Center

    Paulissen, Margaret O.; And Others

    The Teacher Induction Study investigated 2 state-mandated beginning teacher programs and examined the translation of state policy by 4 school districts, 13 individual schools, and 32 classrooms. From the case histories of 16 teams, 2 case histories were selected for further study. One case illustrated how institutional factors influenced team…

  7. Vulnerabilities to Rock-Slope Failure Impacts from Christchurch, NZ Case History Analysis

    NASA Astrophysics Data System (ADS)

    Grant, A.; Wartman, J.; Massey, C. I.; Olsen, M. J.; Motley, M. R.; Hanson, D.; Henderson, J.

    2015-12-01

    Rock-slope failures during the 2010/11 Canterbury (Christchurch), New Zealand Earthquake Sequence resulted in 5 fatalities and caused an estimated US$400 million of damage to buildings and infrastructure. Reducing losses from rock-slope failures requires consideration of both hazard (i.e. likelihood of occurrence) and risk (i.e. likelihood of losses given an occurrence). Risk assessment thus requires information on the vulnerability of structures to rock or boulder impacts. Here we present 32 case histories of structures impacted by boulders triggered during the 2010/11 Canterbury earthquake sequence, in the Port Hills region of Christchurch, New Zealand. The consequences of rock fall impacts on structures, taken as penetration distance into structures, are shown to follow a power-law distribution with impact energy. Detailed mapping of rock fall sources and paths from field mapping, aerial lidar digital elevation model (DEM) data, and high-resolution aerial imagery produced 32 well-constrained runout paths of boulders that impacted structures. Impact velocities used for structural analysis were developed using lumped mass 2-D rock fall runout models using 1-m resolution lidar elevation data. Model inputs were based on calibrated surface parameters from mapped runout paths of 198 additional boulder runouts. Terrestrial lidar scans and structure from motion (SfM) imagery generated 3-D point cloud data used to measure structural damage and impacting boulders. Combining velocity distributions from 2-D analysis and high-precision boulder dimensions, kinetic energy distributions were calculated for all impacts. Calculated impact energy versus penetration distance for all cases suggests a power-law relationship between damage and impact energy. These case histories and resulting fragility curve should serve as a foundation for future risk analysis of rock fall hazards by linking vulnerability data to the predicted energy distributions from the hazard analysis.

  8. Cross-Curricular Teaching and Learning in the Secondary School... Humanities: History, Geography, Religious Studies and Citizenship

    ERIC Educational Resources Information Center

    Harris, Richard; Harrison, Simon; McFahn, Richard

    2011-01-01

    What is the role of the humanities in the modern school? Should geography, history, RE and Citizenship teachers remain faithful to long-standing subject cultures and pedagogies? Or is there another way to consider how the curriculum, and the notion of individual subjects and teachers' pedagogy, could be constructed? Drawing on case studies taken…

  9. Huntsman and West Engelland Fields, Cheyenne County, Nebraska: A case history of technical lessons from a legal conflict

    SciTech Connect

    Tek, M.R.; Coleman, D.D.; Parker, J.M.

    1986-01-01

    During the years 1982-85, a lengthy litigation took place between KN Energy and Marathon Oil Corp. The case involved performance of two fields on structures adjacent to a common saddle and suspected migration of storage gas into the gas cap of a producing oil field. After some 3 years of extensive study, discovery proceedings and preparations, the case came to trial in U.S. District Court in Lincoln, Nebraska, 8 July 1985. After nearly a month in court, agreement was reached between the parties to settle the case on 6 August 1985. The purpose of this paper is not to redress and reargue the legal controversy. Rather, it is to share in the technical forum of gas technology, the lessons learned from the synergistic study leading to a forensic conclusion. The case history is unique and significant because it relates to extensive data from 2 fields and provides insight helpful to understanding major geological and operational factors affecting migration, exchange and mixing of mobile fluids underground.

  10. MR Neurography and Diffusion Tensor Imaging: Origins, History & Clinical Impact of the first 50,000 cases with an Assessment of Efficacy and Utility in a Prospective 5,000 Patient Study Group

    PubMed Central

    Filler, Aaron

    2009-01-01

    Objective Methods were invented that made it possible to image peripheral nerves in the body and to image neural tracts in the brain. Over a 15 year period, these techniques – MR Neurography and Diffusion Tensor Imaging – were then deployed in the clinical and research community and applied to about 50,000 patients. Within this group, about 5,000 patients having MR Neurography were carefully tracked on a prospective basis. Method In the study group a uniform imaging methodology was applied and all images were reviewed and registered by referral source, clinical indication, efficacy of imaging and quality. Various classes of image findings were identified and subjected to a variety of small targeted prospective outcome studies. Those findings demonstrated to be clinically significant were then tracked in the larger clinical volume data set. Results MR Neurography demonstrates mechanical distortion of nerves, hyperintensity consistent with nerve irritation, nerve swelling, discontinuity, relations of nerves to masses, and image features revealing distortion of nerve at entrapment points. These findings are often clinically relevant and warrant full consideration in the diagnostic process. They result in specific pathologic diagnoses that are comparable to electrodiagnostic testing in clinical efficacy. Conclusions MR Neurography and DTI neural tract imaging have been validated as indispensable clinical diagnostic methods that provide reliable anatomical pathological information. There is no alternative diagnostic method in many situations. With the elapse of 15 years, tens of thousands of imaging studies, and hundreds of publications, these methods should no longer be considered experimental. PMID:19927075

  11. Significant or Safe? Two Cases of Instructional Uses of History Feature Films

    ERIC Educational Resources Information Center

    Metzger, Scott Alan; Suh, Yonghee

    2008-01-01

    The popularity of VHS and DVD over the past two decades has greatly expanded the influence of history movies, watched by millions of adolescents in homes and classrooms. This paper examines two secondary U.S. history teachers' instructional uses of history motion pictures in their classrooms. Ray used The Patriot (2000) to teach history as stories…

  12. Placement History of Foster Children: A Study of Placement History and Outcomes in Long-Term Family Foster Care

    ERIC Educational Resources Information Center

    Strijker, Johan; Knorth, Erik J.; Knot-Dickscheit, Jana

    2008-01-01

    The files of 419 children in family foster care and kinship foster care were used in a retrospective longitudinal design study that examined their placement histories in child welfare. Significant associations were found between the number of placements on one hand, and the prevalence of attachment disorders, severity of behavioral problems, and…

  13. A Practice Concepts Symposium on Drug Misuse in the Elderly: Examination of a Case History.

    ERIC Educational Resources Information Center

    Silverstone, Barbara; And Others

    1986-01-01

    Set of articles consisting of an introduction (Barbara Silverstone, et al.) and case study concerning drug misuse in the elderly, and six papers examining the case from the perspectives of clinical pharmacology (William Simonson); pharmacology (Peter Lamy); psychiatry (Charles Gaitz and Nancy Wilson); nursing (Delores Alford); social work (Janet…

  14. Case Study Research in Therapeutic Recreation.

    ERIC Educational Resources Information Center

    McCormick, Bryan P.

    2000-01-01

    Reviews the rationale for and implications of case study research in therapeutic recreation, examining: what can be learned from studying a single case; issues of validity and reliability; ethical conduct of research; and the practice of case study research (case protocol, case selection, collecting data, analyzing and interpreting data, and…

  15. History as the Core of the Precollege Social Studies Curriculum. A Statement of Policy.

    ERIC Educational Resources Information Center

    Organization of History Teachers, Chicago, IL.

    This policy statement by a national professional association of history teachers from kindergarten through grade 12 begins by pointing out that history currently functions as the core of the social studies curriculum prior to college. This position should be expanded and enhanced as a matter of sound curriculum policy. History alone of the social…

  16. Strangulated Small Bowel Obstruction After Renal Transplant With No History of Laparotomy: Case Report.

    PubMed

    Miura, Yuichi; Sato, Kazushige; Kawagishi, Naoki; Ohuchi, Noriaki

    2015-06-01

    Strangulated small bowel obstruction is a complication after abdominal surgery, which is rare in renal transplant patients. A 61-year-old man with a strangulated small bowel obstruction underwent renal transplant surgery 7 years before the current admission. He was admitted to our hospital for abdominal pain, nausea, and abdominal distention. An abdominal computed tomography and an ultrasound examination showed intestinal expansion and fluid collection without ascites. His disease was diagnosed as a small bowel obstruction and conservative treatment was begun. However, because of increasing abdominal pain and the collection of ascites, he underwent an emergency laparotomy and was diagnosed as having a strangulated small bowel obstruction. A fibrous cord had formed between the peritoneum (beside the transplanted kidney) and the root of the sigmoid mesocolon, strangulating the looped ileum and causing bleeding necrosis and hemorrhagic ascites collection. The cord and the necrotic ileum were resected, followed by an end-to-end anastomosis. He was discharged 17 days after the surgery in good condition. This is the first reported case of a person having a strangulated small bowel obstruction by a fibrous cord, who did not have a history of laparotomy after renal transplant. A strangulated small bowel obstruction after a renal transplant in a patient with no history of a laparotomy is a rare, but possible postoperative complications should be considered when making a differential diagnosis.

  17. Sealable joint steel sheet piling for groundwater control and remediation: Case histories

    SciTech Connect

    Smyth, D.; Jowett, R.; Gamble, M.

    1997-12-31

    The Waterloo Barrier{trademark} steel sheet piling (patents pending) incorporates a cavity at each interlocking joint that is flushed clean and injected with sealant after the piles have been driven into the ground to form a vertical cutoff wall. The installation and sealing procedures allow for a high degree of quality assurance and control. Bulk wall hydraulic conductivities of 10{sup -8} to 10{sup -10} cm/sec have been demonstrated at field installations. Recent case histories are presented in which Waterloo Barrier{trademark} cutoff walls are used to prevent off-site migration of contaminated groundwater or soil gases to adjacent property and waterways. Full enclosures to isolate DNAPL source zones or portions of contaminated aquifers for pilot-scale remediation testing will also be described. Monitoring data will be used to demonstrate the effectiveness of the Waterloo Barrier{trademark} in these applications.

  18. The natural history of Unverricht-Lundborg disease: a report of eight genetically proven cases.

    PubMed

    Chew, Nee K; Mir, Pablo; Edwards, Mark J; Cordivari, Carla; Martino, Davide; Schneider, Susanne A; Kim, Hee-Tae; Quinn, Niall P; Bhatia, Kailash P

    2008-01-01

    We report eight cases of genetically proven ULD, with the aim of reassessing the clinical characteristics and natural history of ULD in genetically characterized patients. The eight patients had their first symptoms at mean age of 10.6 years (range: 6-14 years). The main clinical features were action myoclonus, cerebellar ataxia, seizures, and mild intellectual dysfunction. We report three new clinical features of ULD; ocular motor apraxia, dystonia, and rapidly progressive dementia. All patients needed a combination of at least four antimyoclonic drugs, but despite this, all patients were severely disabled by their action myoclonus. After a mean duration of disease of 29.9 years (range: 21-37 years), four patients were walking with aids while another four were wheelchair bound. The clinical phenotypes associated with ULD are more diverse than previously recognized and even though the long term functional outcome and survival have improved, the overall efficacy of antimyoclonic drugs remains unsatisfactory.

  19. Saint Ioannis Lampadistis, the first possible case of blindness due to organic mercury poisoning in history.

    PubMed

    Tsakiris, Kleonikos A

    2016-09-29

    Saint Ioannis Lampadistis is a Cypriot saint of the Greek Orthodox Church, widely venerated in his island of origin. He lived during the 11th century and was blinded by ingesting contaminated fish in the mountainous area of Galata, withdrew from civil life when he was 18, and died at the age of 22. The reason for his blindness remains unknown, though it is widely attributed to an unknown poison related to the copper mines of the region. As fish is the end reservoir of organic mercury, it is quite possible that his blindness was the result of heavy metal toxicity. Organic mercury is associated with CNS atrophy and hypoplasia, and blindness is a frequent presenting symptom. While not much is known about the saint's clinical symptoms (as his ecclestiastical biography focuses on his example and miracles), organic mercury poisoning could explain his sudden loss of vision, thus possibly making him the first-recorded case of organic mercury poisoning in history.

  20. Natural History of Early Gastric Cancer: a Case Report and Literature Review.

    PubMed

    Iwai, Tomohiro; Yoshida, Masao; Ono, Hiroyuki; Kakushima, Naomi; Takizawa, Kohei; Tanaka, Masaki; Kawata, Noboru; Ito, Sayo; Imai, Kenichiro; Hotta, Kinichi; Ishiwatari, Hirotoshi; Matsubayashi, Hiroyuki

    2017-03-01

    Early detection and treatment decrease the mortality rate associated with gastric cancer (GC). However, the natural history of GC remains unclear. An 85-year-old woman was referred to our hospital for evaluation of a gastric tumor. Esophagogastroduodenoscopy identified a 6 mm, flat-elevated lesion at the lesser curvature of the antrum. A biopsy specimen showed a well-differentiated tubular adenocarcinoma. The depth of the lesion was estimated to be intramucosal. Although the lesion met the indications for endoscopic resection, periodic endoscopic follow-up was performed due to the patient's advanced age and comorbidities. The mucosal GC invaded into the submucosa 3 years later, and finally progressed to advanced cancer 5 years after the initial examination. The patient died of tumor hemorrhage 6.4 years after the initial examination. In this case, mucosal GC progressed to advanced GC, eventually leading to the patient's death from GC. Early and appropriate treatment is required to prevent GC-related death.

  1. Education at the Dittrick Museum of Medical History, Case Western Reserve University, Cleveland, Ohio, USA.

    PubMed

    Edmonson, James M

    2009-01-01

    The Dittrick Museum of Medical History pursues an educational mission as being part of a major research university. While the Dittrick dates to 1899 as a historical committee of the Cleveland Medical Library Association, it first affiliated with Case Western Reserve University in 1966, and became a department of the College of Arts and Sciences of CWRU in 1998. The Dittrick maintains a museum exhibition gallery that is open to the public free of charge, and museum staff provide guided tours on appointment. Much of the teaching and instruction at the Dittrick is conducted by university professors; their classes meet in the museum and use museum resources in the form of artifacts, images, archives, and rare books. Class projects using Dittrick collections may take the form of research papers, exhibitions, and online presentations. Dittrick staff assist in these classes and are available to help researchers use museum resources.

  2. Monomelic amyotrophy: clinical profile and natural history of 279 cases seen over 35 years (1976-2010).

    PubMed

    Nalini, Atchayaram; Gourie-Devi, Mandavilli; Thennarasu, Kandavel; Ramalingaiah, Aravinda Hanumanthapura

    2014-09-01

    Our objective was to study the clinical characteristics and natural history of monomelic amyotrophy (MMA). We used a retrospective study of 279 patients diagnosed to have either upper (Hirayama disease) or lower limb MMA. Results showed that brachial MMA (BMMA) occurred in 224 patients (male:female, 9:1). Mean age of onset was 19.5 ± 4.18 years. Progression occurred over less than five years in the majority (95.9%) of patients. Duration at the last follow-up was: up to five years in 61.4%, 5-10 in 21.3%, 10-15 in 7.2%, > 15 years in 10.1%. MRI showed asymmetrical lower cervical cord atrophy in 44.6% of patients. Crural MMA (CMMA) occurred in 55 patients (male:female, 13:1). Mean age of onset was 21.38 ± 5.3 years. Similar to BMMA, most cases (65.5%) had onset between 15 and 25 years of age. Total duration of illness at the last follow-up was up to five years in 52.7%, 10 and beyond in 47.3%. In conclusion, a large cohort of patients with monomelic amyotrophy seen over 35 years (1976-2010) is described. Study data support the clinical findings and its natural history with long term follow-up, and the findings emphasize that monomelic amyotrophy is a 'benign' condition with a self-limiting course.

  3. Rethinking the early history of post-Vygotskian psychology: the case of the Kharkov school.

    PubMed

    Yasnitsky, Anton; Ferrari, Michel

    2008-05-01

    Between the death of Vygotsky in 1934 and the discovery of Vygotsky's work in the West in 1962, Vygotskian psychology was developed through research done by the first generation of Vygotsky's students and their followers, primarily associated with the Kharkov School. Surprisingly, these studies carried out in the 1930s, of great importance for the development of virtually all subsequent Vygotskian psychology, still remain largely unknown; this represents a significant gap in understanding the history of Vygotskian psychology as an empirical study of consciousness. This paper provides a systematic overview of the research agenda of the Kharkov group between 1931 and 1941 and provides new insights into the early development of Vygotskian psychology.

  4. The Pain Management Life History Calendar: A Pilot Study.

    PubMed

    McDonald, Deborah Dillon; Barri, Caroline

    2015-08-01

    Pain management trajectory data that includes previous pain treatments, timing, changes, and outcomes provide crucial data for patients with chronic pain and their practitioners to use when discussing ways to optimize pain management regimens. The aim of this study was to test the use of the life history calendar method to identify pain treatments, treatment regimens, timing, and outcomes of the pain management trajectory of individuals with chronic pain, and to examine feasibility. A pilot, descriptive, methodological design was used. Settings included community-based sites such as congregate housing. Nineteen community-dwelling older adults with osteoarthritis (OA) pain of at least 1 year's duration participated. Participants were interviewed and asked to chronicle from the beginning of the OA pain to the present all of their pain treatments and treatment effects (pain outcomes and adverse events). Raters independently content analyzed the transcribed interviews to identify pain treatments, treatment groupings (regimens), and treatment effects on pain. Feasibility of patients reporting their pain management trajectories was content analyzed by identifying participant difficulty identifying pain treatments, treatment effects, treatment sequence; and difficulty discriminating between treatments, and between OA pain and other pain sources. Individual pain management trajectories were constructed that depicted chronological order of pain treatment regimens and treatment effects. Participants identified pain treatments, discriminate between treatments and between OA and other conditions, and identified treatment effects. Treatment sequence was identified, but more precise timing was generally not reported. Pain management trajectories could provide a helpful way for practitioners to discuss safe, efficacious pain management options with patients.

  5. Natural history of human calicivirus infection: a prospective cohort study.

    PubMed

    Rockx, Barry; De Wit, Matty; Vennema, Harry; Vinjé, Jan; De Bruin, Erwin; Van Duynhoven, Yvonne; Koopmans, Marion

    2002-08-01

    We investigated the natural history of human Calicivirus infection in the community. Clinical information was obtained from 99 subjects infected with Norwalk-like viruses (NLV) and 40 subjects infected with Sapporo-like viruses (SLV) in a prospective, community-based cohort study. NLV infection was common in all age groups, whereas SLV infection was mainly restricted to children aged <5 years. Symptoms lasted for a median of 5 and 6 days for NLV and SLV infections, respectively. Disease was characterized by diarrhea during the first 5 days (87% of patients with NLV infection and 95% of patients with SLV infection) and vomiting on the first day (74% for NLV and 60% for SLV). Vomiting was less common in children aged <1 year (59% for NLV and 44% for SLV) than it was among children aged >/=1 year (>75% for NLV and >67% for SLV). Overall, NLV was detected in 26% of patients up to 3 weeks after the onset of illness. This proportion was highest (38%) for children aged <1 year. SLV shedding subsided after 14 days. These data show that the durations of disease and viral shedding of caliciviruses are longer than has been described elsewhere. Therefore, the impact of these infections may have been underestimated.

  6. The Origin, Composition and History of Comets from Spectroscopic Studies

    NASA Technical Reports Server (NTRS)

    Allamandola, L. J.

    1997-01-01

    A wealth of information essential to understanding the composition and physical structure of cometary ice and hence gain deep insight into the comet's origin and history, can be gleaned by carrying out a full range of spectroscopic studies on the returned sample. These studies ought to be among the first performed as they are generally non-destructive and will provide a broad data bank which will be crucial in planning subsequent analysis. Examples of the spectroscopic techniques along with relative sensitivities and transitions probed, are discussed. Different kind of "spectroscopy" is summarized, with emphasis placed on the kind of information each provides. Infrared spectroscopy should be the premier method of analysis as the mid-IR absorption spectrum of a substance contains more global information about the identity and structure of that material than any other property. In fact, the greatest strides in our understanding of the composition of interstellar ices (thought by many to be the primordial material from which comets have formed) have been taken during the past ten years or so because this was when high quality infrared spectra of the interstellar medium (ISM) first became available. The interpretation of the infrared spectra of mixtures, such as expected in comets, is often (not always) ambiguous. Consequently, a full range of other non-destructive, complementary spectroscopic measurements are required to fully characterize the material, to probe for substances for which the IR is not well suited and to lay the groundwork for future analysis. Given the likelihood that the icy component (including some of the organic and mineral phases) of the returned sample will be exceedingly complex, these techniques must be intensely developed over the next decade and then made ready to apply flawlessly to what will certainly be one of the most precious, and most challenging, samples ever analyzed.

  7. Teaching and Writing History

    ERIC Educational Resources Information Center

    Meltzer, Milton

    1970-01-01

    Discusses new approaches to teaching history through publishers' series devoted to case studies on social problems, balanced presentation of the contributions of minorities including women, documentary sources, or different viewpoints, all instead of the traditional predigested, summarized history texts. Address delivered at American Association…

  8. Citizenship Education about War and Peace: A Study of the History of the Vietnam War through Oral History

    ERIC Educational Resources Information Center

    Murray, Thomas E.

    2004-01-01

    In this article, the author discusses his "History of the Vietnam War" course, which takes oral history as the core of its curriculum. This oral history focuses on personal lives and stories that can bring history to life. The components of the course are as follows: (1) overview of the History of the Vietnam War; (2) email interviews;…

  9. Study of the history of medicine in Georgia.

    PubMed

    Shengelia, R

    1999-03-01

    There are different approaches to teaching the history of medicine in different countries. Teaching the history of medicine in Georgia is bound to its traditional medicine. Georgian medicine originated at the crossroads of the East and West and thus integrates the principles of both medical traditions. The Research Department of the History of Georgian Medicine and Traditional Medicine at Experimental and Clinical Medical Institute of Tbilisi State University has, over 40 years, collected a unique material on Georgian folk medicine, including thousands of recipes and hundreds of active components of herbal, animal, and mineral origin. Our project for the future is to prepare National Formulary of Georgian Medicine. In the work with students, we aim to teach them the basis of Chinese, Indian, Caucasian, Arabian, American, Australian, and African folk medicine, the basis of homeopathy and antroposophy, paleopathology, and bioarcheology so that they incorporate them into modern medicine and clinical practice.

  10. A Molecular Epidemiologic Case-Case Study of Prostate Cancer

    DTIC Science & Technology

    2001-03-01

    AD__ _ _ _ Award Number: DAMD17-98-1-8471 TITLE: A Molecular Epidemiologic Case-Case Study of Prostate Cancer PRINCIPAL INVESTIGATOR: Sara S. Strom...Molecular Epidmeiologic Case-Case Study of Prostate DAMD17-98-1-8471 Cancer Susceptibility 6. AUTHOR(S) Sara S. Strom, Ph.D. Sue-Hwa Lin 7. PERFORMING...DISTRIBUTION CODE Approved for Public Release; Distribution Unlimited 13. ABSTRACT (Maximum 200 Words) Although prostate cancer is the most common cancer in

  11. History of neuropsychological study of sport-related concussion.

    PubMed

    Webbe, Frank M; Zimmer, Adam

    2015-01-01

    Although the medical literature has a long history of description and comment on concussion, the occurrence of concussion within the context of sports other than boxing was not judged to be problematic until the 1980s. Neuropsychological assessment played a critical and integral role in identifying the cognitive sequelae of concussion and mapping out the short- and long-term vagaries in recovery. This paper captures that history and expands upon current applications of neuropsychological assessment in the diagnosis and management of sport-related concussion.

  12. Case-control association mapping by proxy using family history of disease.

    PubMed

    Liu, Jimmy Z; Erlich, Yaniv; Pickrell, Joseph K

    2017-03-01

    Collecting cases for case-control genetic association studies can be time-consuming and expensive. In some situations (such as studies of late-onset or rapidly lethal diseases), it may be more practical to identify family members of cases. In randomly ascertained cohorts, replacing cases with their first-degree relatives enables studies of diseases that are absent (or nearly absent) in the cohort. We refer to this approach as genome-wide association study by proxy (GWAX) and apply it to 12 common diseases in 116,196 individuals from the UK Biobank. Meta-analysis with published genome-wide association study summary statistics replicated established risk loci and yielded four newly associated loci for Alzheimer's disease, eight for coronary artery disease and five for type 2 diabetes. In addition to informing disease biology, our results demonstrate the utility of association mapping without directly observing cases. We anticipate that GWAX will prove useful in future genetic studies of complex traits in large population cohorts.

  13. Teaching History in a Postwar Social Context--The Case of the Croatian Danube Region

    ERIC Educational Resources Information Center

    Baranovic, Branislava; Jokic, Boris; Doolan, Karin

    2007-01-01

    This paper discusses the results of empirical research examining history teachers' opinions on teaching recent history, and on the revocation of a moratorium on teaching former Yugoslavia's recent history in Serbian minority schools in the Croatian Danube region. The research was conducted in 2003, involving a sample of 29 primary and secondary…

  14. Beyond the Bubble in History/Social Studies Assessments

    ERIC Educational Resources Information Center

    Breakstone, Joel; Smith, Mark; Wineburg, Sam

    2013-01-01

    Teachers need tools and assessments that will prepare students to meet the ambitious goals laid out by the Common Core State Standards. The multiple-choice tests that dominate in history will not prepare students to analyze primary and secondary sources, cite textual evidence to support arguments, consider the influence of an author's perspective,…

  15. Studying Adult Learning through the History of Knowledge.

    ERIC Educational Resources Information Center

    Ekpenyong, Lawrence E.

    1990-01-01

    Discusses the methodology by which people arrive at "knowledge" and how knowledge has been seen by philosophers and critical thinkers through history. Includes the theories of Jurgen Habermas, Jack Mezirow, Thomas Kuhn, and Paulo Freire. Cites implications for adult education. (JOW)

  16. Street Theatre: Drama as Method for Studying Contemporary American History.

    ERIC Educational Resources Information Center

    Chilcoat, George W.

    Strategies and techniques for teaching history and stimulating secondary school students' awareness of and interest in the past is the focus of this document. Using drama as a tool enhances learning and maintains interest and attention by designing and acting out appropriate settings, historical circumstances, dramatic action, and historical…

  17. World History. A Program for Senior High School Social Studies.

    ERIC Educational Resources Information Center

    Waldner, Patrick

    GRADES OR AGES: Senior high school. SUBJECT MATTER: World history. ORGANIZATION AND PHYSICAL APPEARANCE: The guide covers ten units: 1) Perspective--Man in Pre-historic and Ancient Times; 2) Feudalism and the Church in the Middle Ages; 3) Renaissance and Reformation; 4) The Emergence of Nationalism--Its Cause and Effects; 5) Revolutions of Rising…

  18. Course of Study: United States History, Middle School.

    ERIC Educational Resources Information Center

    Pittsburgh Board of Public Education, PA.

    This course for grade 8 contains 122 lessons designed to teach United States History, including analysis of democracy and society as well as awareness of the citizen role. The guide provides a basic focus of instruction and also presents a range of teaching techniques, materials, and activities which teachers can utilize according to student needs…

  19. Physiologic amputation: a case study.

    PubMed

    Long, Jeri; Hall, Virginia

    2014-03-01

    Acute limb ischemia is a complication of severe peripheral arterial disease that can be a threatening limb as well as life. Multiple procedures exist today to help revascularize extremities; however, even with the latest technologies, surgical amputation of the limb may still be necessary. Cryoamputation, or physiologic amputation, is a method used to treat patients who are hemodynamically unstable for the operating room and who are in need of urgent amputation owing to arterial ischemia. This procedure is used in the rare instance where not only a persons' limb is threatened, but also their life. This is a case study regarding one patient who presented to the hospital with limb-threatening ischemia who became hemodynamically unstable owing to the rhabdomyolysis associated with the ischemia of his lower extremity. Cryoamputation was used to stabilize the patient and prevent further deterioration, so that he could safely undergo surgical amputation of the limb without an increase in mortality risk. Cryoamputation must be followed by formal surgical amputation when the patient is hemodynamically stabilized. It is not a limb salvaging, procedure but it is a life-saving procedure. This case study demonstrates the usefulness of the procedure and discusses the technique used for cryoamputation.

  20. Two History Texts: A Study in Contrast. A Study Guide and Lesson Plan.

    ERIC Educational Resources Information Center

    Moore, Robert B.

    By comparing a text that is especially biased with one that is especially free of bias, the understanding and recognition of race and sex bias in history textbooks can be developed. "Your Mississippi" by John K. Bettersworth and "Mississippi: Conflict and Change", edited by Sallis and Loewen, provide examples for such a study.…

  1. Case studies in diagnostic imaging

    SciTech Connect

    Nisbet, A.P.; Gedroyc, W.M.W.; Rankin, S.C.

    1987-01-01

    This book presents short clinical histories and selected radiographs in a quiz format to enable readers to attempt their own diagnosis. Overleaf specimen answers, recommendations for further management and, where appropriate, further confirmatory films are displayed. The book is intended to be a tutor for candidates sitting postgraduate medical examinations, providing a means of testing themselves and obtaining an immediate answer for comparison.

  2. How Mathematical Knowledge for Teaching May Profit from the Study of History of Mathematics

    NASA Astrophysics Data System (ADS)

    Mosvold, Reidar; Jakobsen, Arne; Jankvist, Uffe Thomas

    2013-07-01

    In this theoretical article, we aim at theorizing the old statement that mathematics teachers might profit from studying the history of mathematics. We do this by drawing upon the theoretical framework of mathematical knowledge for teaching (MKT). A selection of international studies on the history and pedagogy of mathematics is used as starting points for discussing how the different domains of teachers' MKT—to a larger or smaller degree—can profit from the history of mathematics.

  3. Depositional history and fault-related studies, Bolinas Lagoon, California

    USGS Publications Warehouse

    Berquist, Joel R.

    1978-01-01

    Studies of core sediments and seismic reflection profiles elucidate the structure and depositional history of Bolinas Lagoon, Calif., which covers 4.4 km 2 and lies in the San Andreas fault zone at the southeast corner of the Point Reyes Peninsula 20 km northwest of San Francisco. The 1906 trace of the San Andreas fault crosses the west side of the lagoon and was determined from (1) tectonically caused salt-marsh destruction indicated by comparison of 1854 and 1929 U.S. Coast and Geodetic Survey (U.S.C. & G.S.) topographic surveys, (2) formation of a tidal channel along the border of destroyed salt marshes, and (3) azimuths of the trend of the fault measured in 1907. Subsidence in the lagoon of 30 cm occurred east of the San Andreas fault in 1906. Near the east shore, seismic-reflection profiling indicates the existence of a graben fault that may connect to a graben fault on the Golden Gate Platform. Comparison of radiocarbon dates on shells and plant debris from boreholes drilled on Stinson Beach spit with a relative sea-level curve constructed for southern San Francisco Bay indicates 5.8 to more than 17.9 m of tectonic subsidence of sediments now located 33 m below mean sea level. Cored sediments indicate a marine transgression dated at 7770?65 yrs B.P. overlying freshwater organic-rich lake deposits. Fossil pollen including 2 to 8 percent Picea (spruce) indicate a late Pleistocene (?)-Early Holocene climate, cooler, wetter, and foggier than at present. Above the transgression are discontinuous and interfingering sequences of transgressive-regressive marine, estuarine, and barrier sediments that reflect rapid lateral and vertical shifts of successive depositional environments. Fossil megafauna indicate (1) accumulation in a protected, shallow-water estuary or bay, and (2) that the lagoon was probably continuously shallow and never a deep-water embayment. Analysis of grain-size parameters, pollen frequencies, and organic remains from a core near the north end of

  4. Generalization of Findings From Single Case Studies.

    ERIC Educational Resources Information Center

    Kennedy, Mary M.

    Although single case studies might be useful to evaluators for a variety of purposes, there are no generally accepted ways for drawing inferences about the generality of findings from a case study. Single case studies are defined in this paper as either studies of single events, or disaggregated studies of multiple events. The data may be…

  5. Case Study: A Picture Worth a Thousand Words? Making a Case for Video Case Studies

    ERIC Educational Resources Information Center

    Pai, Aditi

    2014-01-01

    A picture, they say, is worth a thousand words. If a mere picture is worth a thousand words, how much more are "moving pictures" or videos worth? The author poses this not merely as a rhetorical question, but because she wishes to make a case for using videos in the traditional case study method. She recommends four main approaches of…

  6. STS Case Study Development Support

    NASA Technical Reports Server (NTRS)

    Rosa de Jesus, Dan A.; Johnson, Grace K.

    2013-01-01

    The Shuttle Case Study Collection (SCSC) has been developed using lessons learned documented by NASA engineers, analysts, and contractors. The SCSC provides educators with a new tool to teach real-world engineering processes with the goal of providing unique educational materials that enhance critical thinking, decision-making and problem-solving skills. During this third phase of the project, responsibilities included: the revision of the Hyper Text Markup Language (HTML) source code to ensure all pages follow World Wide Web Consortium (W3C) standards, and the addition and edition of website content, including text, documents, and images. Basic HTML knowledge was required, as was basic knowledge of photo editing software, and training to learn how to use NASA's Content Management System for website design. The outcome of this project was its release to the public.

  7. Value of case studies in disaster assessment?

    PubMed

    Grynszpan, Delphine; Murray, Virginia; Llosa, Silvia

    2011-06-01

    Case studies can be useful in assessing and learning lessons from emergency situations. In this paper, different uses for disaster case studies, are explored with identification of potential pitfalls that should be avoided. In addition, ways to improve the rigor and significance of case studies are suggested. Case studies can be used as examples or as a research tool. If conducted properly, they can provide robust and compelling results. It is argued that sharing a common guide to conducting and writing case studies among all disaster risk reduction professionals could improve the quality of case study reports and thereby strengthen their value in advancing the prevention, preparedness, and management of disasters and emergencies.

  8. HORMONE USE, REPRODUCTIVE HISTORY AND RISK OF LUNG CANCER: THE WOMEN'S HEALTH INITIATIVE STUDIES

    PubMed Central

    Schwartz, Ann G.; Ray, Roberta M.; Cote, Michele L.; Abrams, Judith; Sokol, Robert J.; Hendrix, Susan L.; Chen, Chu; Chlebowski, Rowan T.; Hubbell, F. Allan; Kooperberg, Charles; Manson, JoAnn E.; Jo O'Sullivan, Mary; Rohan, Thomas; Stefanick, Marcia L.; Wactawski-Wende, Jean; Wakelee, Heather; Simon, Michael S.

    2015-01-01

    Introduction Results from the Women's Health Initiative (WHI) clinical trials (CT) demonstrated no increase in the risk of lung cancer in postmenopausal women treated with hormone therapy. We conducted a joint analysis of the WHI observational study data and CT data to further explore the association between estrogen and estrogen-related reproductive factors and lung cancer risk. Methods Reproductive history, oral contraceptive (OC) use, and postmenopausal hormone therapy (HT) was evaluated in 160,855 women with known HT exposures. Follow-up for lung cancer was through September 17, 2012; 2,467 incident lung cancer cases were ascertained, with median follow-up of 14 years. Results For all lung cancers, women with previous use of estrogen plus progestin of < 5 years (HR=0.84; 95% CI 0.71-0.99) were at reduced risk. A limited number of reproductive factors demonstrated associations with risk. There was a trend towards decreased risk with increasing age at menopause (ptrend=0.04) and a trend towards increased risk with increasing number of live births (ptrend=0.03). Reduced risk of non-small cell lung cancer was associated with age 20-29 at first live birth. Risk estimates varied with smoking history, years of HT use and previous bilateral oophorectomy. Conclusions Indirect measures of estrogen exposure to lung tissue, as used in this study, provide only weak evidence for an association between reproductive history or HT use and risk of lung cancer. More detailed mechanistic studies and evaluation of risk factors in conjunction with ER expression in the lung should continue as a role for estrogen can't be ruled out and may hold potential for prevention and treatment strategies. PMID:25852020

  9. An Experimental Comparison of Case Histories with Conventional Materials in Teaching a College General Education Course in Science.

    ERIC Educational Resources Information Center

    Peterson, Ronald G.

    Experimentally evaluated were the merits of a case history and a current reading materials approach to a college general education science course with regard to facts and generalizations, methods of science, and scientific attitudes examination scores. In the experimental treatment, the nature of science and scientific research and other course…

  10. Natural History of Early Gastric Cancer: a Case Report and Literature Review

    PubMed Central

    Iwai, Tomohiro; Yoshida, Masao; Ono, Hiroyuki; Takizawa, Kohei; Tanaka, Masaki; Kawata, Noboru; Ito, Sayo; Imai, Kenichiro; Hotta, Kinichi; Ishiwatari, Hirotoshi; Matsubayashi, Hiroyuki

    2017-01-01

    Early detection and treatment decrease the mortality rate associated with gastric cancer (GC). However, the natural history of GC remains unclear. An 85-year-old woman was referred to our hospital for evaluation of a gastric tumor. Esophagogastroduodenoscopy identified a 6 mm, flat-elevated lesion at the lesser curvature of the antrum. A biopsy specimen showed a well-differentiated tubular adenocarcinoma. The depth of the lesion was estimated to be intramucosal. Although the lesion met the indications for endoscopic resection, periodic endoscopic follow-up was performed due to the patient's advanced age and comorbidities. The mucosal GC invaded into the submucosa 3 years later, and finally progressed to advanced cancer 5 years after the initial examination. The patient died of tumor hemorrhage 6.4 years after the initial examination. In this case, mucosal GC progressed to advanced GC, eventually leading to the patient's death from GC. Early and appropriate treatment is required to prevent GC-related death. PMID:28337366

  11. Definition of reservoir configuration in ancient glacial environment: case history from Rima field, south Oman

    SciTech Connect

    Penneycard, A.J.

    1986-05-01

    The Al Khlata Formation (Permian-Carboniferous) is an important reservoir unit of the Eastern Flank province of South Oman. The formation consists of an unusual series of glacial sand, silt, shale, and diamictite exhibiting such gross heterogeneity that conventional correlation techniques are ineffective. A threefold palynologic subdivision has been developed, which has allowed the recognition of a number of genetically distinct units. Major periods of erosion separate the units, erosive processes dominating the 20-40 million year period during which the Al Khlata accumulated. Deposition occurred in a sequence of deep valleys cut into the early Al Khlata and underlying Haima (Cambrian-Ordovician) reservoirs. The extent of these deposits is controlled by the morphology of these incisive valleys. A case history of the large Rima field illustrates the use of palynology in unraveling the temporal and spatial relationships of the individual Al Khlata and Haima units. The resultant reservoir-geologic model of this internally complex fields has enabled more confident assessment of variations in well performance with reservoir type, and has guided plans for future offtake levels and overall development planning.

  12. A Case of Recurrent Skin Abscesses: A Conundrum Solved after Obtaining a Thorough Sexual History

    PubMed Central

    Chang, Aymara Y.; Soto-Ruiz, Enrique

    2017-01-01

    Background. Despite the improvement in patient-physician communication techniques, sexuality and sexual health continue to be challenging areas for discussion during a clinical encounter. Most people are not prepared to discuss sexual matters openly as it can be perceived as negative or inappropriate. Consequently, an incomplete health assessment can result in delayed diagnosis or misdiagnosis. Case Report. We present a 33-year-old woman who developed recurrent left breast abscesses. She required multiple incision and drainage procedures in the operating room followed by antimicrobial therapy. Although she always had an initial improvement with this approach, she continued to have recurrences and development of new abscesses in other body areas. The polymicrobial nature of her recurrences prompted an extensive and costly workup to determine the nature of her condition. The cause was finally elucidated when a thorough sexual history was obtained. Poor hygiene practices during her sexual encounters were considered the cause of her recurrent abscesses. After medical therapy and modification of her sexual practices, she has not developed new recurrences for more than two years. Conclusion. Discussions on sexuality and sexual health are important parts of any clinical encounter, yet frequently forgotten or avoided. Becoming aware of their importance would avoid delayed diagnosis or misdiagnosis. PMID:28386492

  13. Single-Case Research Methods: History and Suitability for a Psychological Science in Need of Alternatives.

    PubMed

    Hurtado-Parrado, Camilo; López-López, Wilson

    2015-09-01

    This paper presents a historical and conceptual analysis of a group of research strategies known as the Single-Case Methods (SCMs). First, we present an overview of the SCMs, their history, and their major proponents. We will argue that the philosophical roots of SCMs can be found in the ideas of authors who recognized the importance of understanding both the generality and individuality of psychological functioning. Second, we will discuss the influence that the natural sciences' attitude toward measurement and experimentation has had on SCMs. Although this influence can be traced back to the early days of experimental psychology, during which incipient forms of SCMs appeared, SCMs reached full development during the subsequent advent of Behavior Analysis (BA). Third, we will show that despite the success of SCMs in BA and other (mainly applied) disciplines, these designs are currently not prominent in psychology. More importantly, they have been neglected as a possible alternative to one of the mainstream approaches in psychology, the Null Hypothesis Significance Testing (NHST), despite serious controversies about the limitations of this prevailing method. Our thesis throughout this section will be that SCMs should be considered as an alternative to NHST because many of the recommendations for improving the use of significance testing (Wilkinson & the TFSI, 1999) are main characteristics of SCMs. The paper finishes with a discussion of a number of the possible reasons why SCMs have been neglected.

  14. Electrokinetic enhanced bioventing of gasoline in clayey soil: A case history

    SciTech Connect

    Loo, W.W.; Wang, I.S.; Fan, J.

    1994-12-31

    This paper presents a case history on the bioventing of gasoline in soil with electrokinetic enhancement. The gasoline in soil was related to a 10,000-gallon underground storage tank spill, San Diego, California. The gasoline soil plume covers an area of about 2,400 square feet and to a depth of about 30 feet. The upper 15 feet of the soil plume consists of highly conductive marine clay. The lower 15 feet of the soil plume consists of dense cemented conglomerate sandstone. The gasoline concentration in the soil plume range from 100 to 2,200 mg/Kg(ppm) and the target cleanup level is below 100 ppm. Total gasoline in soil plume is estimated at about 1,000 pounds of gasoline in about 3,500 tons of soil. The soil remediation effort was completed after about 90 days of treatment. The concentration of gasoline in soil after treatment was way below the proposed cleanup level of less than 100 mg/Kg(ppm). The cost of treatment is about $50 per ton for this advanced soil treatment process which provides a cost effective solution to this soil plume with minimum disruption to business operation at the facility.

  15. Using the Case Study Method in Teaching College Physics

    NASA Astrophysics Data System (ADS)

    Burko, Lior M.

    2016-10-01

    The case study teaching method has a long history (starting at least with Socrates) and wide current use in business schools, medical schools, law schools, and a variety of other disciplines. However, relatively little use is made of it in the physical sciences, specifically in physics or astronomy. The case study method should be considered by physics faculty as part of the effort to transition the teaching of college physics from the traditional frontal-lecture format to other formats that enhance active student participation. In this paper we endeavor to interest physics instructors in the case study method, and hope that it would also serve as a call for more instructors to produce cases that they use in their own classes and that can also be adopted by other instructors.

  16. The Borderland of Autism and Rett Syndrome: Five Case Histories to Highlight Diagnostic Difficulties.

    ERIC Educational Resources Information Center

    Gillberg, Christopher

    1989-01-01

    Case studies of 4 females and 1 male, aged 6-25, with pervasive developmental disorders are described. All met standard diagnostic criteria for autism and showed many Rett syndrome symptoms. It is concluded that there is considerable overlap between the 2 disorders and that symptomatic similarities might mirror common pathopsychological…

  17. Putting History at the Core: History and Literature in Environmental Studies

    ERIC Educational Resources Information Center

    Morse, Kathryn

    2003-01-01

    When environmental studies programs broaden their curricular offerings into the humanities, their first stop is often environmental literature, particularly classics such as Henry David Thoreau's "Walden," Aldo Leopold's "A Sand County Almanac," and Rachel Carson's "Silent Spring." Environmental literature courses consider many of the works of…

  18. Women Studies: Women in American History; HERstory-Changing Roles of American Women. Preliminary Edition.

    ERIC Educational Resources Information Center

    Millstein, Beth; And Others

    Two draft courses of study together with some suggested learning activities are presented for initial tryout and experimentation: 1) Women's Studies - Women in American History; and 2) HIStory and HERstory: Changing Roles of the American Women. These experimental curriculum materials may serve as resource for an option, an alternative, an…

  19. How Mathematical Knowledge for Teaching May Profit from the Study of History of Mathematics

    ERIC Educational Resources Information Center

    Mosvold, Reidar; Jakobsen, Arne; Jankvist, Uffe Thomas

    2014-01-01

    In this theoretical article, we aim at theorizing the old statement that mathematics teachers might profit from studying the history of mathematics. We do this by drawing upon the theoretical framework of mathematical knowledge for teaching (MKT). A selection of international studies on the history and pedagogy of mathematics is used as starting…

  20. Learning from the patient: the East, synchronicity and transference in the history of an unknown case of C.G. Jung.

    PubMed

    de Moura, Vicente

    2014-06-01

    This article presents the history of one until now unknown case of C.G. Jung: Maggy Reichstein. Born in Indonesia in 1894 in a very aristocratic family, she brought her sister to Zurich to be treated by Jung in 1919, and later she herself was in analysis with him. Jung used her case as example in his lecture in 1937 on the realities of practical psychotherapy, relating it to the process of transference and countertransference. Jung deepened his studies in Eastern psychology after a series of dreams she had, which culminated in the Yoga Kundalini Seminars. She was also the case presented in his article of 1951 on the concept of synchronicity. Jung wrote that her case, concerning synchronicity, remained unique in his experience. Jung also published some of her mandalas. He considered her able to understand his ideas in depth. Reichstein was for Jung an important case, which challenged and triggered his interests in different subjects.

  1. The IRAC Method of Case Study Analysis: A Legal Model for the Social Studies.

    ERIC Educational Resources Information Center

    Bittner, Marie

    1990-01-01

    Presents the IRAC (Issue, Rule, Analysis, and Conclusion) method used to analyze and judge legal cases. Stresses this method's applicability for social studies instruction, stating it helps students assess facts and apply rules to reach and defend conclusions. Provides examples for using the IRAC method in U.S. government and U.S. history units.…

  2. Seismic response in archaeological areas: the case-histories of Rome

    NASA Astrophysics Data System (ADS)

    Donati, Stefano; Funiciello, Renato; Rovelli, Antonio

    1999-03-01

    Rome is affected by earthquakes associated to three different seismogenic districts: the Central Apennines area, the Colli Albani volcanic area and the Roman area. The major effects were exclusively due to Apennine seismicity and reached in some cases felt intensities up to VII-VIII degree (MCS scale). The predominant role in the damage distribution seems to be played by the local geological conditions. The historical centre of the city is characterized by the presence of two geomorphologic domains: the alluvial plain of Tiber river and the topographic relieves of Roman Hills, where tradition indicates the first site of the city foundation. In particular, the right river side is characterized by the outcropping of the regional bedrock along the Monte Mario-Gianicolo ridge, while the eastern relieves are the remnants of the Sabatini and Albani volcanic plateau, deeply eroded by the Tiber river and its tributaries during the last glacial low-stand (Würm). These domains are characterized by a large difference in seismic response, due to the high impedance contrast between Holocene coarse deposits filling the Tiber Valley and sedimentary and volcanic Plio-Pleistocene units. Seismic damage observed in 150 monuments of downtown Rome was indicating a significant concentration on alluvial recent deposits. This result was confirmed by the geographical distribution of conservation and retrofitting activities subsequent to main earthquakes, mostly related to local geological conditions. The cases of Marcus Aurelius' Column and Colosseum confirmed the influence of the Holocene alluvial network in local seismic response. During 2500 years of history, the monuments of Rome have `memorized' the seismic effects of historical earthquakes. In some cases, the integration of historical and geological research and macroseismic observations may provide original and useful indications to seismologists to define the seismic response of the city. Local site effects represent a serious

  3. Development of Curriculum in American Civilization for the General Student: Case Study Approach. Final Report.

    ERIC Educational Resources Information Center

    Gibson, John S.; Kenosian, Elisabeth M.

    Case studies in each of the parts deal with specific problems in the mainstream of United States history and are designed to help the general level student relate the case study and the theme of the past to similar problems today. Each theme deals with the resolution of conflict in historical ideologies. 1) Studies on intolerance in American life…

  4. Case-control studies: basic concepts.

    PubMed

    Vandenbroucke, Jan P; Pearce, Neil

    2012-10-01

    The purpose of this article is to present in elementary mathematical and statistical terms a simple way to quickly and effectively teach and understand case-control studies, as they are commonly done in dynamic populations-without using the rare disease assumption. Our focus is on case-control studies of disease incidence ('incident case-control studies'); we will not consider the situation of case-control studies of prevalent disease, which are published much less frequently.

  5. Endobronchial fibroma in a pneumoconiosis patient with a history of tuberculosis: A case report and literature review

    PubMed Central

    Wang, Meifang; Liu, Yuquan; Li, Dan; Xiong, Chang; Qian, Xin; Tang, Yijun

    2016-01-01

    Bronchial fibroma is uncommon, with only 18 cases reported since 1948. The current study presents a rare case of endobronchial fibroma, along with a relevant literature review. A 54-year-old male patient with pneumoconiosis and a history of tuberculosis was admitted to the Taihe Hospital Affiliated With Hubei University of Medicine, Shiyan, China, due to refractory dry cough. Computed tomography of the chest showed multiple nodular and confluent opacities in the lung and one cavitation in the right upper lobe region. Bronchoscopy revealed an endobronchial mass in the left main bronchus. A bronchoscopic resection was performed, and the pathological evaluation confirmed fibroma. The patient's dry cough resolved following the removal of the fibroma, and no recurrence was detected during 6 months of follow-up. Endobronchial fibroma is an extremely rare disease, for which a pathological analysis is typically required for an accurate diagnosis. Bronchoscopic treatments, including removal by forceps, argon plasma coagulation and laser or electrocautery snares, may be used to treat patients affected by endobronchial fibroma. PMID:27446391

  6. Abducted by aliens: a case study.

    PubMed

    Neagoe, A D

    2000-01-01

    This article describes a case of Shared Psychotic Disorder in a married couple. Because only one of the partners of the pair (the inducer) was alive, at the time of the research, the other partner (the recipient) is presented by using a "psychological autopsy" based both on 19 tape recordings containing her delusional recollections and on a history provided by the husband. The content of their delusion, shaped by a fantasy theme of contemporary Western culture, is unique among cases of Shared Psychotic Disorder published in the last 30 years. The discussion following the case presentation draws attention to the potential risk of this type of case leading to a homicide-suicide pact. Additionally, comments are made about both the pathogenesis, with emphasis on psychodynamic hypothesis, and a consideration of the prognosis, which seems modulated by cultural factors.

  7. Business and Consumer Education Case Studies.

    ERIC Educational Resources Information Center

    Delta Pi Epsilon, Minneapolis, Minn. Phi Chapter.

    This publication contains 58 case studies for classroom use in teaching various business and consumer education subjects at the high school level. A supplement to a previous Phi Chapter publication, "Office Education Case Studies" (1973), the case studies are intended to create class discussions and help students acquire the ability to analyze…

  8. Case Study Evaluations: A Decade of Progress?

    ERIC Educational Resources Information Center

    Yin, Robert K.

    1997-01-01

    In the last 10 years, there has been increased use of case study methodology, with accompanying refinement and improvement of the methods. Case studies have become legitimate research methods in evaluation, but it is too soon to say whether improvements in methodology are really resulting in improvements in the case studies conducted. (SLD)

  9. Case Study: The Chemistry of Cocaine

    ERIC Educational Resources Information Center

    Dewprashad, Brahmadeo

    2011-01-01

    This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month's case study focuses on the chemistry of cocaine to teach a number of core concepts in organic chemistry. It also requires that students read and analyze an original research paper on…

  10. Effects of Authoritarianism on the Teaching of National History: The Case of Latvia

    ERIC Educational Resources Information Center

    Abens, Aija

    2015-01-01

    Recent research on history teaching has begun to focus on political motivation. This paper is the result of the author's dissertation, which investigates Latvian history teaching under the authoritarian regimes of Ulmanis and Stalin. It reveals the effects of authoritarianism on goals, curriculum, teaching materials and methods, and the teacher's…

  11. Mark XIV Torpedo Case Study

    DTIC Science & Technology

    2011-02-26

    to cry and the XO and I said ‘Captain, this ship was tracking right on course with the speed and course we got it exactly right.’ He said ‘We will...they realized how much testing they really needed to do. The inherent arrogance of the Gun Club and the “not invented here” syndrome , have been...The silent service—The torpedoes of WW II ( Cat # AAE 43107) [History Channel documentary]. New York, NY: A&E Television Networks. Naval Undersea

  12. Investigation of Nonlinear Site Response and Seismic Compression from Case History Analysis and Laboratory Testing

    NASA Astrophysics Data System (ADS)

    Yee, Eric

    In this thesis I address a series of issues related to ground failure and ground motions during earthquakes. A major component is the evaluation of cyclic volumetric strain behavior of unsaturated soils, more commonly known as seismic compression, from advanced laboratory testing. Another major component is the application of nonlinear and equivalent linear ground response analyses to large-strain problems involving highly nonlinear dynamic soil behavior. These two components are merged in the analysis of a truly unique and crucial field case history of nonlinear site response and seismic compression. My first topic concerns dynamic soil testing for relatively small strain dynamic soil properties such as threshold strains, gammatv. Such testing is often conducted using specialized devices such as dual-specimen simple-shear, as devices configured for large strain testing produce noisy signals in the small strain range. Working with a simple shear device originally developed for large-strain testing, I extend its low-strain capabilities by characterizing noisy signals and utilizing several statistical methods to extract meaningful responses in the small strain range. I utilize linear regression of a transformed variable to estimate the cyclic shear strain from a noisy signal and the confidence interval on its amplitude. I utilize Kernel regression with the Nadaraya-Watson estimator and a Gaussian kernel to evaluate vertical strain response. A practical utilization of these techniques is illustrated by evaluating threshold shear strains for volume change with a procedure that takes into account uncertainties in the measured shear and vertical strains. My second topic concerns the seismic compression characteristics of non-plastic and low-plasticity silty sands with varying fines content (10 ≤ FC ≤ 60%). Simple shear testing was performed on various sand-fines mixtures at a range of modified Proctor relative compaction levels ( RC) and degrees-of-saturation (S

  13. A life history study of the yellow throat

    USGS Publications Warehouse

    Stewart, R.E.

    1953-01-01

    Investigations concerning the life history of the Yellow-throat were made in southern Michigan during the spring and summer of 1938. Supplementary information was also obtained at Arlington, Virginia, in 1940 and at the Patuxent Research Refuge, Maryland, in 1947.....Resident males established territories almost immediately upon arrival in spring. In southern Michigan some resident males arrived at least as soon as, if not before, transient males. Most females appeared on their nesting ground about a week later. Adults were engaged in nesting activities from the time of their arrival in spring until the advent of the post-nuptial molt in late summer.....Typical Yellow-throat habitat consists of a mixture of a dense herbaceous vegetation and small woody plants in damp or wet situations. At Ann Arbor, the Yellow-throat was a common breeding species in its restricted suitable habitat. The population density in one area of suitable habitat was about 69 territorial males per 100 acres. Of 11 territorial males that were intensively studied, one was polygamous (with two mates), nine were monogamous, and one was probably monogamous (with at least one mate).....The song of the individual Yellow-throat was heard throughout the breeding season except for the courtship period. Two major types of song were the common song given while perched, and an occasional, more elaborate, flight song. Most males sing in spurts, singing at fairly regular intervals for a considerable period and then abruptly ceasing for another period. The vocabulary of both sexes included several types of call notes that appeared either to have special functions or to represent outward expressions of distinct emotional states of the bird.....Resident males were antagonistic toward each other throughout the breeding season. Most remained on well-established territories during this period. Territories of 10 monogamous males ranged in size from .8 to 1.8 acres but the territory of one polygamous male occupied

  14. Natural history and treatment effects in Guillain-Barré syndrome: a multicentre study.

    PubMed

    Korinthenberg, R; Mönting, J S

    1996-04-01

    A retrospective multicentre study was performed to investigate the natural history and treatment effects in childhood Guillain-Barré syndrome in a large number of patients. Structured questionnaires were sent to 155 paediatric hospitals for details of patients who conformed to internationally accepted diagnostic criteria and who were treated from spring 1989 to summer 1994. Sixty nine hospitals reported data of 175 patients aged 11 months to 17.7 years. At the height of the disease 26% of the patients remained able to walk, but 16% had to be artificially ventilated. The median time from onset of symptoms to first recovery was 17 days, to walk unaided 37 days, and to be free of symptoms 66 days. There was a large group with a benign and a smaller one with a more protracted course. At long term follow up, 98/106 patients were free of symptoms and the remainder were able to walk unaided. Maximum disability grade was the most powerful prognostic factor. In children unable to walk but not yet tetraplegic, immunoglobulins were able to accelerate recovery. Corticosteroids were less potent. Plasmapheresis could not be evaluated because it was administered only in the most severe cases. The natural history of Guillain-Barré syndrome in children is extremely variable and more benign than in adults. Treatment with immunoglobulins should be considered in patients unable to walk. Corticosteroids are not as effective and should be withheld except when, in protracted courses, suspicion of chronic inflammatory demyelinating polyneuropathy arises.

  15. Stowaways in the history of science: the case of simian virus 40 and clinical research on federal prisoners at the US National Institutes of Health, 1960.

    PubMed

    Stark, Laura; Campbell, Nancy D

    2014-12-01

    In 1960, J. Anthony Morris, a molecular biologist at the US National Institutes of Health conducted one of the only non-therapeutic clinical studies of the cancer virus SV40. Morris and his research team aimed to determine whether SV40 was a serious harm to human health, since many scientists at the time suspected that SV40 caused cancer in humans based on evidence from in vivo animal studies and experiments with human tissue. Morris found that SV40 had no significant effect but his claim has remained controversial among scientists and policymakers through the present day--both on scientific and ethical grounds. Why did Morris only conduct one clinical study on the cancer-causing potential of SV40 in healthy humans? We use the case to explain how empirical evidence and ethical imperatives are, paradoxically, often dependent on each other and mutually exclusive in clinical research, which leaves answers to scientific and ethical questions unsettled. This paper serves two goals: first, it documents a unique--and uniquely important--study of clinical research on SV40. Second, it introduces the concept of "the stowaway," which is a special type of contaminant that changes the past in the present moment. In the history of science, stowaways are misfortunes that nonetheless afford research that otherwise would have been impossible specifically by creating new pasts. This case (Morris' study) and concept (the stowaway) bring together history of science and philosophy of history for productive dialog.

  16. Human exposure to natural uranium: A case history and analytical results from some postmortem tissues

    PubMed Central

    Donoghue, J. K.; Dyson, E. D.; Hislop, J. S.; Leach, A. M.; Spoor, N. L.

    1972-01-01

    Donoghue, J. K., Dyson, E. D., Hislop, J. S., Leach, A. M., and Spoor, N. L. (1972).Brit. J. industr. Med.,29, 81-89. Human exposure to natural uranium: a case history and analytical results from some postmortem tissues. After the collapse and sudden death of an employee who had worked for 10 years in a natural uranium workshop, in which the airborne uranium was largely U3O8 with an Activity Median Aerodynamic Diameter in the range 3·5-6·0 μm and average concentration of 300 μg/m3, his internal organs were analysed for uranium. The tissues examined included lungs (1041 g), pulmonary lymph nodes (12 g), sternum (114 g), and kidneys (217 g). Uranium was estimated by neutron activation analysis, using irradiated tissue ash, and counting the delayed neutrons from uranium-235. The concentrations of uranium (μg U/g wet tissue) in the lungs, lymph nodes, sternum, and kidneys were 1·2, 1·8, 0·09, and 0·14 respectively. The weights deposited in the lungs and lymph nodes are less than 1% of the amounts calculated from the environmental data using the parameters currently applied in radiological protection. The figures are compatible with those reported by Quigley, heartherton, and Ziegler in 1958 and by Meichen in 1962. The relation between these results, the environmental exposure data, and biological monitoring data is discussed in the context of current views on the metabolism of inhaled insoluble uranium. PMID:5060250

  17. Areal 3-D seismic technique for reservoir delineation: Case history from offshore Niger Delta

    SciTech Connect

    Idowu, A.O. )

    1993-02-01

    In the 1950s, early exploration period in the Niger Delta witnessed the use of 2-D (two dimensional) seismic reflection method which adequate for imaging large subsurface geologic features including growth faulting and roll-over anticlines. This technique involves the Common-Depth-Point method (CDP) which acquires a plane of seismic information in distance along the surface and in time into the geological section, and is used to improve the signal-to-noise (S/N) ratio, to remove multiples and consequently give a representation of the subsurface particularly if the data are collected up- or downdip. By mid-1980s, the obvious geological structures have, in general, been discovered and it became necessary to adopt a more sophisticated technique such as the 3-D (three dimensional) seismic method to delineate more subtle reservoirs and resolve complex fault patterns in order to aid exploration as well as facilitate efficient field development. The case history discussed in this paper involves the use of areal 3-D seismic method for delineating the reservoir characterization of the O-field located in a shallow water area of the western Niger Delta. The areal 3-D seismic technique is superior to the earlier CDP method in that a cube of seismic data can be collected in two dimensions in space and one in time by a variety of techniques including the swath seismic shooting pattern adopted for gathering the 3-D data for the O-field's reservoir which involves the line of sources. The objective is to adequately sample the subsurface so that changes in various parameters such as the amplitude phase or power in the siesmic signal or velocity of propagation can be mapped areally and interpreted as an indication of changes in the physical properties of the rock matrix.

  18. [Three Cases of Moyamoya Disease with a History of Kawasaki Disease].

    PubMed

    Kawasaki, Toshinari; Arakawa, Yoshiki; Sugino, Toshiya; Mitsuhara, Takafumi; Funaki, Takeshi; Kikuchi, Takayuki; Koyanagi, Masaomi; Yoshida, Kazumichi; Kunieda, Takeharu; Takahashi, Jun C; Takagi, Yasushi; Miyamoto, Susumu

    2015-11-01

    Here, we report three cases of moyamoya disease with a history of Kawasaki disease. A 33-year-old man was found to have stenotic lesions of the internal carotid arteries(ICAs)on both sides at a nearby hospital where he visited complaining of headache and lisping. He had received immunoglobulin therapy for Kawasaki disease at the ages of 1, 2, and 6 years. MRI showed only a chronic ischemic lesion in the white matter. Angiography showed occlusion at the terminal portion of the ICAs on both sides. He was diagnosed with moyamoya disease, but as he had no symptoms and preserved cerebral blood flow (CBF), he was kept under observation. An 8-year-old boy was diagnosed with moyamoya disease and underwent right encephaloduroarteriosynangiosis at a nearby hospital. He had received immunoglobulin therapy for Kawasaki disease at the age of 1 year. His ischemic symptoms worsened. Although MRI detected no apparent ischemic lesion, angiography revealed severe stenosis at the terminal portions of the ICAs on both sides, and 123I-IMP SPECT showed CBF impairment. Bilateral direct bypass was performed. His father was subsequently also diagnosed with moyamoya disease. A 4-year-old girl with epilepsy was diagnosed with moyamoya disease at a nearby hospital. She had been treated with aspirin for Kawasaki disease at the age of 1 year. MRI detected no remarkable ischemic lesions, but angiography revealed mild stenosis at the terminal portions of the ICAs on both sides. Five months later, her ischemic symptoms were worsening with progressing stenotic lesions, and she underwent bilateral direct bypass.

  19. Case history: Failure analysis of a 16K ROM with a polysilicon gate defect

    SciTech Connect

    Mikawa, R.E.; Campbell, A.N.

    1993-08-01

    This case history presents the analysis of a very unusual CMOS 2K {times} 8 read only memory (ROM) failure. The IC failure was discovered after a 1,000 hour, 150{degree}C static life test. Elevated quiescent power supply current was present that caused the IC to fail parametric testing, but the IC was fully functional at the specified operating power supply voltage of 10 V. Functional failures were ``forced`` by operating the IC at below nominal voltage. Electron beam probing and dynamic voltage contrast imaging performed while the IC was in the functional failing mode indicated the presence of an electrical open circuit in the polysilicon gate interconnect of a p-channel transistor. The IC was deprocessed down to the polysilicon and the defective gate was examined with a scanning electron microscope. An abrupt change in microstructure was observed at the location corresponding to the site of electrical discontinuity. Circuit simulations, performed using a series gate resistance to model the defective gate, showed that the gate signal to the p-channel transistor changed phase and high current was present if the gate resistance exceeded 1 {times} 10{sup 9} ohms. The change in microstructure and increased gate resistance are consistent with a localized reduction of dopant (phosphorus) concentration. During the life test, it is speculated that phosphorus segregated to the grain boundaries resulting in a net reduction of dopant atoms and a corresponding decrease in the conductivity of the polysilicon gate. This IC failure is apparently due to dopant segregation and carrier trapping at the grain boundaries in the polysilicon during the high temperature life test.

  20. Mingling "Fact" with "Fiction": Strategies for Integrating Literature into History and Social Studies Classrooms

    ERIC Educational Resources Information Center

    Turk, Diana B.; Klein, Emily; Dickstein, Shari

    2007-01-01

    In this article, the authors offer a series of strategies to help teachers integrate literature into their history and social studies classrooms without losing the flavor or essence of either the literature they are using or the history they are trying to teach. None of the presented approaches is mutually exclusive of the others, and several may…

  1. Agency and Female Teachers' Career Decisions: A Life History Study of 40 Women

    ERIC Educational Resources Information Center

    Smith, Joan

    2011-01-01

    This article reports on some of the findings of a wider, life history study on the factors affecting the career decisions of 40 female secondary school teachers in England. By using life history interviews, it was possible to gain rich and nuanced insights into the complexity of factors influencing women's career decisions. While acknowledging the…

  2. Embodied Experiences of Place: A Study of History Learning with Mobile Technologies

    ERIC Educational Resources Information Center

    Price, S.; Jewitt, C.; Sakr, M.

    2016-01-01

    This paper reports an empirical study that takes a multimodal analytical approach to examine how mobile technologies shape students' exploration and experience of place during a history learning activity in situ. In history education, mobile technologies provide opportunities for authentic experiential learning activities that have the potential…

  3. Levodopa addiction. A case study.

    PubMed

    Tack, E; De Cuypere, G; Jannes, C; Remouchamps, A

    1988-09-01

    A case is presented of a young woman with a serious addiction to levodopa who over the years developed an extrapyramidal syndrome and chronic paranoid psychotic behaviour. The possible pathophysiological mechanism is discussed.

  4. Oral History--A Tool for the Study of Chicano History in the Lower Rio Grande Valley of Texas.

    ERIC Educational Resources Information Center

    Miller, Hubert J.

    Scholars of Chicano history have been negligent in using oral history as a research tool whereas colleagues in other disciplines (e.g., Manuel Gomio, Paul Taylor, Oscar Lewis, and Americo Paredes) have used the technique extensively. The growing list of oral history projects since the early 1970's argues well for the greater use of oral history…

  5. Demystifying Instructional Innovation: The Case of Teaching with Case Studies

    ERIC Educational Resources Information Center

    Kantar, Lina D.

    2013-01-01

    Issues emerging from instructional innovation are inevitable, yet basing any curriculum shift on a theoretical framework is paramount. This paper grounds the case-based pedagogy in three learning theories: behaviorism, cognitivism, and constructivism. The three theories are described and situated in relation to the case study method. An…

  6. Armitage Lecture 2011: the design and analysis of life history studies.

    PubMed

    Lawless, Jerald F

    2013-06-15

    Life history studies collect information on events and other outcomes during people's lifetimes. For example, these may be related to childhood development, education, fertility, health, or employment. Such longitudinal studies have constraints on the selection of study members, the duration and frequency of follow-up, and the accuracy and completeness of information obtained. These constraints, along with factors associated with the definition and measurement of certain outcomes, affect our ability to understand, model, and analyze life history processes. My objective here is to discuss and illustrate some issues associated with the design and analysis of life history studies.

  7. Thomas Midgley, Jr., and the Development of New Substances: A Case Study for Chemical Educators

    ERIC Educational Resources Information Center

    Viana, Hélio Elael Bonini; Porto, Paulo Alves

    2013-01-01

    This paper presents a history of chemistry case study focusing on selected aspects of the work of American engineer Thomas Midgley, Jr. (1889-1944): the development of tetraethyl lead as an antiknock gasoline additive and of chlorofluorocarbons (CFCs) as fluids for refrigeration devices. One general aim of this case study is to display the complex…

  8. Cognitive theories as reinforcement history surrogates: the case of likelihood ratio models of human recognition memory.

    PubMed

    Wixted, John T; Gaitan, Santino C

    2002-11-01

    B. F. Skinner (1977) once argued that cognitive theories are essentially surrogates for the organism's (usually unknown) reinforcement history. In this article, we argue that this notion applies rather directly to a class of likelihood ratio models of human recognition memory. The point is not that such models are fundamentally flawed or that they are not useful and should be abandoned. Instead, the point is that the role of reinforcement history in shaping memory decisions could help to explain what otherwise must be explained by assuming that subjects are inexplicably endowed with the relevant distributional information and computational abilities. To the degree that a role for an organism's reinforcement history is appreciated, the importance of animal memory research in understanding human memory comes into clearer focus. As Skinner was also fond of pointing out, it is only in the animal laboratory that an organism's history of reinforcement can be precisely controlled and its effects on behavior clearly understood.

  9. Experience and Life History. Roskilde University Life History Project Paper.

    ERIC Educational Resources Information Center

    Salling Olesen, Henning

    The Life History Project at Denmark's Roskilde University is a 5-year research project that was initiated in 1998 to examine learning and participation in adult and continuing education from a life history perspective. The project was designed to build on a broad range of qualitative interview studies and case studies into learning processes. The…

  10. A Case of Subclavian Artery Aneurysm with History of Ischemic Heart Disease Operated Under Cervical Epidural Anesthesia

    PubMed Central

    Rath, Amrita; Abhinay, J.; Loha, Sandeep; Singh, Atul Kumar

    2017-01-01

    Subclavian artery aneurysm is usually operated under general anesthesia (GA), but in specific situations, it can also be conducted under regional anesthesia (RA) such as cervical epidural anesthesia (CEA). A 48-year-old male presented with chief complaint of progressive swelling in the right side of the neck for the past 3 months following trauma. He was diagnosed as subclavian artery aneurysm, and surgical intervention was advised. He had previous history of angina 4 months back for which tablet aspirin 75 mg and tablet clopidogrel 75 mg once daily was prescribed. Cardiological evaluation revealed of an ejection fraction of around 30% with mild left ventricular hypokinesia and grade 2 diastolic dysfunction. Due to the poor cardiac functional status of the patient, RA with CEA was planned. The risk with GA in cases with a history of myocardial ischemia is more than RA, hence, it is better to use CEA which is equally efficacious in such high-risk cases. PMID:28298800

  11. Drive Electric Vermont Case Study

    SciTech Connect

    Wagner, Fred; Roberts, Dave; Francfort, Jim; White, Sera

    2016-03-01

    Currently in the United States, the heavy majority of plug-in electric vehicle (PEV) sales have been in highly conducive, selected, metropolitan areas; opposed to more broad distribution across the country. The U.S. Department of Energy’s EV Everywhere Grand Challenge is looking carefully at the barriers and opportunities that exist to enable small and midsize communities to partake in the PEV market and benefit from the economic and environmental advantages of PEVs. In order to gain insight into these challenges and barriers, DOE selected a success story (i.e., Drive Electric Vermont) as the subject of this case study, as the state of Vermont is tied with Detroit, Michigan in having the highest percentage of 2014 (most recent complete data) PEV registrations for cold weather U.S. cities and has seen more than a sixfold increase in charging stations over the last three years. The overall objective of this case study was to use the lessons learned from Drive Electric Vermont to determine what activities are most effective at encouraging acquisitions of PEVs and deployment of charging infrastructure in small to midsize communities, prioritizing and sequencing their implementation, identifying robust means for extrapolation, and applying this understanding to other small to midsize communities across the nation. The Drive Electric Vermont Program was formed in 2012 with a goal of increasing the use of electrified transportation in Vermont through policy development, education and outreach, and infrastructure development. The Drive Electric Vermont Program can be broadly broken into four components: (1) strategic planning/leadership, (2) stakeholder/partnership development, (3) education and outreach, and (4) incentives. The early phases of the program focused heavily on strategic planning, and stakeholder and partnership development, followed by a transition to education and outreach activities, charging infrastructure development, and grant and incentive programs

  12. The proximal costs of case construction in caddisflies: antioxidant and life history responses.

    PubMed

    Mondy, N; Rey, B; Voituron, Y

    2012-10-01

    Animal construction allows organisms to cope with environmental variations but the physiological costs of such behaviour are still poorly understood. The aim of the present study was to measure the physiological cost of construction behaviour through the oxidative balance that is known to affect the ability of organs to function, stimulates senescence processes and ultimately impacts the fitness of the organism. We used larvae of caddisfly, Limnephilus rhombicus, by experimentally modifying the effort associated with case building. Larvae that were forced to build a new case showed a significant increase in both total antioxidant capacity and the specific activity of superoxide dismutase 48 and 72 h, respectively, after the initiation of the reconstruction. These results strongly suggest that the larval construction behaviour triggered the production of reactive oxygen species, but their effects were reversed 7 days after the reconstruction. In the animals that were forced to build a new case, oxidative stress appeared to be mitigated by a network of antioxidant defences because no oxidative damage was observed in proteins compared with the control larvae. At the adult stage, while longevity was not sex dependent and was not affected by the treatment, body mass and body size of adult males from the reconstruction treatment were significantly lower than the control values. This unexpected sex effect together with data on oxidative stress highlights the difficulty of determining the physiological cost associated with energy-demanding behaviours, implying a consideration of both their energetic and non-energetic components is required.

  13. A Different Approach to Teaching Social Studies: Folk Songs History

    ERIC Educational Resources Information Center

    Tangülü, Zafer

    2014-01-01

    The purpose of this study is to determine the effect of teaching and learning the subjects of Social Studies with folk songs in secondary school students. This study is made in 2012-2013 Academic Year Spring Term with seventh grade students studying in secondary school bounded Mugla Provincial Directorate for National Education. 67 students have…

  14. Acute myeloid leukemia in adults: a case-control study in Yorkshire.

    PubMed

    Cartwright, R A; Darwin, C; McKinney, P A; Roberts, B; Richards, I D; Bird, C C

    1988-10-01

    This paper reports the results of a case-control analysis of 161 cases of acute myeloid leukemia and 310 matched hospital controls. The patients were interviewed between 1982 and 1986. The study shows a weak association for cases with previous malignant disease. Furnace workers show excess risks. Urticaria and vertigo are in excess, as well as some aspects of family medical histories, including multiple sclerosis and cases of leukemia/lymphoma in blood relations.

  15. Pyourachus: study of two cases.

    PubMed

    Thapar, R B; Jha, V U; Mehta, R U; Shah, G R

    2006-07-01

    The urachus, or median umbilical ligament, is a midline tubular structure that extends upward from the anterior dome of the bladder toward, the umbilicus and represents the vestigial remnant of at least two embryonic structures, the cloaca and the allantois. The tubular urachus normally involutes before birth, remaining as a fibrous band, however its persistence can give rise to various clinical problems, not only in infants and children but also in adults. We report two cases of pyourachus at our institute with a review of the clinical presentation, imaging findings and surgical management. Both our patients were young males, with haematuria being the presenting feature in one case which has not been previously described in literature.

  16. Study on Case Teaching of Financial Management

    ERIC Educational Resources Information Center

    Che, Zhenghong; Che, Zhengmei

    2011-01-01

    Case teaching is an efficient teaching method of management. It plays an important role to enhance the students' ability to practice the theory. However, case teaching of financial management has not achieved the expected results. The paper aims to study the importance, characteristics and corresponding methods of case teaching method of financial…

  17. Case Studies for Management Development in Bangladesh.

    ERIC Educational Resources Information Center

    McLean, Gary N.

    Eight case studies appropriate for use in a course in management development were prepared and are provided in this document. The typical case describes a real business situation in which a real manager had to reach a decision. The case gives quantitative and qualitative information that is, or may be, relevant to that decision. Questions for…

  18. Associative visual agnosia: a case study.

    PubMed

    Charnallet, A; Carbonnel, S; David, D; Moreaud, O

    2008-01-01

    We report a case of massive associative visual agnosia. In the light of current theories of identification and semantic knowledge organization, a deficit involving both levels of structural description system and visual semantics must be assumed to explain the case. We suggest, in line with a previous case study, an alternative account in the framework of (non abstractive) episodic models of memory.

  19. A People's History of Education: Brian Simon, the British Communist Party and "Studies in the History of Education, 1780-1870"

    ERIC Educational Resources Information Center

    McCulloch, Gary

    2010-01-01

    Brian Simon's "Studies in the History of Education", 1780-1870, published in 1960, set out to counter nearly all work previously produced on the history of education in Britain in this period, and to direct the field towards a new course. It provided a Marxist perspective that drew upon Simon's involvement in campaigns for educational…

  20. A Mini-Course for Social Studies. Subject: History of Flight

    ERIC Educational Resources Information Center

    Knight, Luise M.

    1977-01-01

    Lists seven objectives and supplies a course outline and sample pretest for a mini-course in the History of Aviation (Social Studies) for high school students. Supplemental books and audiovisual materials are listed. Bibliography included. (CS)

  1. A Model of Microteaching Lesson Study Implementation in the Prospective History Teacher Education

    ERIC Educational Resources Information Center

    Utami, Indah Wahyu Puji; Mashuri; Nafi'ah, Ulfatun

    2016-01-01

    Microteaching lesson study is a model to improve prospective teacher quality by incorporating several element of microteaching and lesson study. This study concern on the implementation of microteaching lesson study in prospective history teacher education. Microteaching lesson study model implemented in this study consist of three stages: plan,…

  2. Validation Studies for the Diet History Questionnaire II

    Cancer.gov

    Data show that the DHQ I instrument provides reasonable nutrient estimates, and three studies were conducted to assess its validity/calibration. There have been no such validation studies with the DHQ II.

  3. Objectives, Design, and History of the National Longitudinal Study.

    ERIC Educational Resources Information Center

    Davis, J. A.; Collins, Elmer

    The National Longitudinal Study of the High School Class of 1972 (NLS) is a federally supported longitudinal study of a national sample of some 23,000 young people first surveyed as high school seniors in the spring of 1972. The historical precedents of such a study include the work of Friend and Haggert in a Boston settlement house, Louis…

  4. Case-control study of possible causative factors in mycosis fungoides

    SciTech Connect

    Tuyp, E.; Burgoyne, A.; Aitchison, T.; MacKie, R.

    1987-02-01

    A detailed case control study was carried out on 53 patients (33 males and 20 females) with histologically proven mycosis fungoides and on an age- and sex-matched control population. Possible causative factors investigated included occupation, recreation, and exposure to petrochemicals, pesticides, insecticides, and potential carcinogens. Exposure to plants of the Compositae family, tanning history, and chronic sun exposure were also investigated, as were smoking history, drug ingestion history, and other skin disease. Personal and family histories of other malignancies were also investigated. The only statistically significant difference to emerge was that the patients with mycosis fungoides had significantly more family history of atopic dermatitis. In view of the absence of any significant difference between patients and controls with regard to personal history of atopic dermatitis, this difference may be the result of multiple statistical testing rather than a phenomenon of true biological significance.

  5. Cape queer? A case study of Provincetown, Massachusetts.

    PubMed

    Krahulik, Karen Christel

    2006-01-01

    Cape Queer is a case study that details how sexuality intersects with race, gender, and class in the development of the gay and lesbian resort community, Provincetown, Massachusetts. It asks scholars to pay closer attention to the ways in which methodologies and practices utilizing LGBT studies and queer theory can combine rather than separate to interrogate LGBT and queer histories, politics and communities. In the process, it assesses how the global mechanics of capitalism led to the local queering and eventually un-queering of a gentrified, white, gay and lesbian enclave.

  6. Northeastern Pennsylvania Retrospective Case Study Fact Sheet

    EPA Pesticide Factsheets

    EPA conducted a retrospective case study in northeastern Pennsylvania to investigate reported instances of contaminated drinking water resources in areas where hydraulic fracturing activities occurred

  7. Work, Productivity, and Human Performance: Practical Case Studies in Ergonomics, Human Factors and Human Engineering.

    ERIC Educational Resources Information Center

    Fraser, T. M.; Pityn, P. J.

    This book contains 12 case histories, each based on a real-life problem, that show how a manager can use common sense, knowledge, and interpersonal skills to solve problems in human performance at work. Each case study describes a worker's problem and provides background information and an assignment; solutions are suggested. The following cases…

  8. Cuban History and Culture, Social Studies: 6478.19.

    ERIC Educational Resources Information Center

    Alchin, Don D.

    In this elective quinmester course clustering around behavioral studies, Junior high students study Cuban heritage; Cuban events leading up to the migration to the U.S.; and Cuban-American population as it now exists in the U.S., including refugee problems, contributions, and the future. The focus is upon helping teachers and students understand…

  9. INCAP Oriente longitudinal study: 40 years of history and legacy.

    PubMed

    Ramirez-Zea, Manuel; Melgar, Paul; Rivera, Juan A

    2010-02-01

    Our purpose in this article is to describe the objectives, design, overall coverage, and main domains of data collection of the Institute of Nutrition of Central America and Panama Oriente Longitudinal Study and subsequent follow-up studies. This supplementary feeding trial targeted to pregnant and lactating women and children from birth to 7 y of age, conducted in 4 rural Guatemalan villages (1969-77) with a series of follow-up studies (1988-2007), is one of the richest sources of information on the effects of nutrition, growth, development, and human capital in the developing world, with outstanding data from gestation to adult age and 40 y of follow-up. Its results have influenced nutrition knowledge and policy with over 300 scientific publications. We present brief descriptions of preliminary studies that were critical for the success of the trial and the design and methods used during the trial and in the follow-up studies, in chronological order.

  10. A Senior High School Social Studies Unit on Latin American History. World History Series, Bulletin No. 257.

    ERIC Educational Resources Information Center

    Magee, Paul

    This secondary level curriculum guide provides a program and identifies materials for the history and culture of Latin America. The primary purpose of the course is to stimulate throught and to encourage students to make valid generalizations and intelligent assessments of the forces and events that have shaped the history and culture of Latin…

  11. A Model for Teaching Secondary History: The Case of Fort Pillow.

    ERIC Educational Resources Information Center

    Horton, Paul

    2000-01-01

    Believes that all students should focus on the interpretation of documents in the secondary history curriculum. Describes a unit where students learn to interpret the events of the "battle" of Fort Pillow (Tennessee) that was the most controversial engagement of the Civil War. Provides background information on the battle of Fort Pillow. (CMK)

  12. History and Philosophy of Science through Models: Some Challenges in the Case of "The Atom".

    ERIC Educational Resources Information Center

    Justi, Rosaria; Gilbert, John

    2000-01-01

    Suggests that the contribution of history and philosophy of science (HPS) to science education can be enhanced through a consideration of scientific models. Analyzes the curriculum and textbooks for 14-16 year olds in Brazil and the United Kingdom and identifies the use of hybrid models. (Contains 35 references.) (Author/YDS)

  13. Using "Master Narratives" to Teach History: The Case of the Civil Rights Movement

    ERIC Educational Resources Information Center

    Frost, Jennifer

    2012-01-01

    Narratives encompass ways of thinking historically and several skills of the historian, and Tom Holt believes it is imperative that educators teach--and their students learn--how to construct historical narratives. Understanding and constructing history as narratives opens up the historical project for students. Moreover, demonstrating how…

  14. The Ethnic "Other" in Ukrainian History Textbooks: The Case of Russia and the Russians

    ERIC Educational Resources Information Center

    Janmaat, Jan Germen

    2007-01-01

    This paper examines portrayals of Russia and the Russians in two generations of Ukrainian history textbooks. It observes that the textbooks are highly condemning of Ukraine's main ethnic other in the guise of foreign ruler: the tsarist authorities and the Soviet regime are always attributed dubious and malicious intentions even if there is…

  15. History and Philosophy of Science through Models: The Case of Chemical Kinetics.

    ERIC Educational Resources Information Center

    Justi, Rosaria; Gilbert, John K.

    1999-01-01

    A greater role for the history and philosophy of science in science education can only be realized if it is based on both a credible analytical approach--such as that of Lakatos--and if the evolution of a sufficient number of major themes in science is known in suitable detail. Considers chemical kinetics as an example topic. Contains 62…

  16. History effects in the sedimentation of light aerosols in turbulence: The case of marine snow

    NASA Astrophysics Data System (ADS)

    Guseva, Ksenia; Daitche, Anton; Feudel, Ulrike; Tél, Tamás

    2016-11-01

    We analyze the effect of the Basset history force on the sedimentation of nearly neutrally buoyant particles, exemplified by marine snow, in a three-dimensional turbulent flow. Particles are characterized by Stokes numbers much smaller than unity, and still water settling velocities, measured in units of the Kolmogorov velocity, of order one. The presence of the history force in the Maxey-Riley equation leads to individual trajectories which differ strongly from the dynamics of both inertial particles without this force and ideal settling tracers. The main effect of the history force is an extraordinary slow, power-law type convergence to an asymptotic settling velocity of the center of mass, which is found numerically to be the settling velocity in still fluid. The spatial extension of the ensemble grows diffusively after an initial ballistic growth lasting up to circa one large eddy turnover time. We demonstrate that the settling of the center of mass for such light aggregates is best approximated by the settling dynamics in still fluid found with the history force, on top of which fluctuations appear which follow very closely those of the turbulent velocity field.

  17. Aurum: a case study in the politics of NIMBY.

    PubMed

    Guidotti, Tee L; Abercrombie, Sheila

    2008-12-01

    The literature on the phenomenon of community resistance to local siting of undesirable facilities, the so-called ;not in my backyard' syndrome (NIMBY), emphasizes community civic characteristics and motivation. We describe a case study in which prior political history played an important but not obvious role. The Aurum project was a proposed landfill for the city of Edmonton, Alberta (Canada) proposed in 1989 and 1990 for an isolated and mostly vacant site within city limits but across a river from the developed area. The siting was bitterly but successfully opposed by the government and residents of the adjacent area. Investigation determined residual, unspoken resentment among county residents against an attempt by the city to annex it decades before. It was concluded that in this instance, and probably many others, the political history of the community plays a major role in conditioning their response to ;locally undesirable land use' (LULUs) and the NIMBY phenomenon.

  18. Case studies in conservation science

    NASA Astrophysics Data System (ADS)

    Bisulca, Christina

    The research presented in this dissertation covers three separate topics of conservation as defined by the National Science Foundation: 1) Materials Stabilization, Strengthening, Monitoring, and Repair; 2. Understanding Material Degradation and Aging; and 3) Materials and Structural Characterization of Cultural Heritage Objects (the 'technical study'). The first topic is addressed through a study to assess the consolidant tetraethoxysilane for the stabilization of alum treated wood. Falling under materials degradation studies is a study published in American Museum Novitates to understand how environmental conditions affect the aging of fossil resins from five different deposits. Two separate studies are included in technical study of cultural heritage objects which comprises the third research area of materials characterization. The first is a survey of red dyes used in Chinese paintings from the Ming Dynasty to the Early Republic (1364-1911). The second is a study of the pigments, dyes and binders used in Hawaiian barkcloth (kapa) from the 19th century.

  19. Interruption in the maintenance of compulsive sexual disorder: two case studies.

    PubMed

    Konopacki, W P; Oei, T P

    1988-10-01

    Sexual offenses and disorders are at times compulsive in nature. It is hypothesized that compulsive sexuality is a function of a history of interrupted or frustrated approach behavior. Two case studies involving compulsive features were treated by preventing such interruptions and delays. An A-B-A-B single-case experimental design on one of the two case studies provided some support for the hypothesized relationship. Implications for assessment and treatment are examined and the mechanisms underlying the hypothesized relationship are discussed.

  20. History of depression and risk of hyperemesis gravidarum: a population-based cohort study.

    PubMed

    Kjeldgaard, Helena Kames; Eberhard-Gran, Malin; Benth, Jūratė Šaltytė; Nordeng, Hedvig; Vikanes, Åse Vigdis

    2017-01-07

    Hyperemesis gravidarum (HG) is a pregnancy condition characterised by debilitating nausea and vomiting. HG has been associated with depression during pregnancy but the direction of the association remains unclear. The aim of this study was to assess whether previous depression is associated with HG. This is a population-based pregnancy cohort study using data from The Norwegian Mother and Child Cohort Study. The study reviewed 731 pregnancies with HG and 81,055 pregnancies without. Logistic regression analyses were performed to examine the association between a lifetime history of depression and hyperemesis gravidarum. Odds ratios were adjusted for symptoms of current depression, maternal age, parity, body mass index, smoking, sex of the child, education and pelvic girdle pain. A lifetime history of depression was associated with higher odds for hyperemesis gravidarum (aOR = 1.49, 95% CI (1.23; 1.79)). Two thirds of women with hyperemesis gravidarum had neither a history of depression nor symptoms of current depression, and 1.2% of women with a history of depression developed HG. A lifetime history of depression increased the risk of HG. However, given the fact that only 1.2% of women with a history of depression developed HG and that the majority of women with HG had no symptoms of depression, depression does not seem to be a main driver in the aetiology of HG.

  1. Soil gases in geothermal prospecting: Two case histories (Sabatini Volcanoes and Alban Hills, Latium, Central Italy)

    NASA Astrophysics Data System (ADS)

    Bertrami, R.; Buonasorte, G.; Ceccarelli, A.; Lombardi, S.; Pieri, S.; Scandiffio, G.

    1990-12-01

    Studies were conducted to test the effectiveness of soil gas surveying for locating permeable zones in buried carbonate reservoirs and to locate the presence of possible gasoeus haloes linked to active geothermal systems. Two surveys were conducted in the Sabatini Volcanoes and Alban Hills areas. Each area is characterized by a thermal anomaly and a scarcity of surface manifestations. In the former area, CO2, H2, He, and CH4 in soil gases were determined; in the latter total helium in about 1000 soil gas samples and in about 400 water samples was determined. In both cases, anomalous concentrations of the gases were found mainly according to fault or fracture systems. Therefore it seems possible to utilize the distribution of the gases in these zones as indicators of deep permeability.

  2. Soil gases in geothermal prospecting: Two case histories (Sabatini Volcanoes and Alban Hills, Latium, Central Italy)

    NASA Astrophysics Data System (ADS)

    1990-12-01

    Studies were concluded to test the effectiveness of soil gas surveying for locating permeable zones in buried carbonate reservoirs and to locate the presence of possible gaseous halos linked to active geothermal systems. Two surveys were conducted in the Sabatini Volcanoes and Alban Hills areas. Each area is characterized by a thermal anomaly and a scarcity of surface manifestations. In the former area, CO2, H2, He, and CH4 in soil gases were determined; in the latter total helium in about 1000 soil gas samples and in about 400 water samples was determined. In both cases, anomalous concentrations of the gases were found mainly according to fault or fracture systems. Therefore it seems possible to utilize the distribution of the gases in these zones as indicators of deep permeability.

  3. Site response of heterogeneous natural deposits to harmonic excitation applied to more than 100 case histories

    NASA Astrophysics Data System (ADS)

    Chenari, Reza Jamshidi; Bostani Taleshani, Shirin Aminzadeh

    2016-06-01

    Variation of shear-wave propagation velocity (SWV) with depth was studied by analyzing more than one hundred actual SWV profiles. Linear, power, and hyperbolic variation schemes were investigated to find the most representative form for naturally occurred alluvial deposits. It was found that hyperbolic (asymptotic) variation dominates the majority of cases and it can be reliably implemented in analytical or analytical-numerical procedures. Site response analyses for a one-layer heterogeneous stratum were conducted to find an equivalent homogeneous alternative which simplifies the analysis procedure but does not compromise the accuracy of the resonance and amplification responses. Harmonic average, arithmetic average and mid-value equivalents are chosen from the literature for investigation. Furthermore, full and partial depth averaging schemes were evaluated and compared in order to verify the validity of current practices which rely upon averaging shallow depths, viz., the first 30 m of the strata. Engineering bedrock concept was discussed and the results were compared.

  4. Fanweed toxicosis in cattle: case history, analytical method, suggested treatment, and fanweed detoxification.

    PubMed

    Smith, R A; Crowe, S P

    1987-04-01

    Two hundred and twenty head of pregnant cows were fed virtually 100% fanweed (Thlaspi arvense) in November 1984. One hundred became distressed and colicy within 4 hr of feeding. Eight died over the next 5 days despite removal of the feed and symptomatic treatment. Necropsy revealed massive submucosal edema of the wall of the forestomachs, particularly the rumen. Four abortions occurred. The feed was analyzed and was found to liberate 250 mg/100g of AITC. Possible methods of treatment were devised in case the problem should recur. Fanweed contains sinigrin and the enzyme myrosin. When the plant is crushed and moistened, allylisothiocyanate (AITC) is formed along with glucose and potassium acid sulfate. Application of Le Chatelier's principle led to an investigation of the effect of pH on in vitro generation of AITC. Methods of destroying AITC were also examined, and detoxification studies were undertaken on fanweed.

  5. Clinical case histories and sketches of gun-shot injuries from the Carlist War.

    PubMed

    Kaufman, M H

    2001-10-01

    The Anatomical Museum of the University of Edinburgh contains a substantial collection of human osteological preparations that display the effects of musket-ball and sabre injuries. Most of these formerly belonged to the Museum Collection associated with the class of Military Surgery. This collection had principally been amassed by Sir George Ballingall to illustrate his lectures when he was Regius Professor of Military Surgery in the University of Edinburgh from 1822-55. About half of the osteological preparations in his collection had been purchased from Dr Rutherford Alcock in 1843. Alcock had collected them when he was Deputy Inspector General of Hospitals to the British Auxiliary Legion in Spain during the Carlist War of 1835-37. Just under 60% of the osteological preparations purchased from Alcock still remain on display in the Anatomy Museum of the University of Edinburgh. Previously, the only information on these items was that published in Ballingall's Catalogue of the Museum attached to the Class of Military Surgery, published in 1855. Very recently, twelve volumes of manuscript material, consisting principally of clinical case records prepared by Alcock and his medical officers have been located in the Special Collections Section of Edinburgh University Library. This has now enabled the full clinical case records of the majority of the individuals whose osteological preparations are still available in the collection to be studied. This manuscript material provides a unique record of the treatment of the sick and wounded men in this campaign. It also allows the clinical records of men wounded by musket-ball to be studied with their associated bony lesions.

  6. Minnesota Academic Standards in History and Social Studies

    ERIC Educational Resources Information Center

    Minnesota Department of Education, 2004

    2004-01-01

    Public education in Minnesota must help students gain the knowledge and skills that are necessary to, in Thomas Jefferson's view, protect and maintain freedom. The Social Studies Standards in this document attempt to do just this by specifying the particular knowledge and skills that Minnesota students will be required to learn in the disciplines…

  7. Social Studies in the Dark: Using Docudramas to Teach History

    ERIC Educational Resources Information Center

    D'Sa, Benicia

    2005-01-01

    This article, discusses the rationale for using films, specifically docudramas, for teaching social studies and presents guidelines and resources for helping teachers to do so. Included are several Web resources that assist teachers in the selection and use of specific films to complement classroom instruction. The author has also incorporated the…

  8. Remaking Our Teacher Education History through Self-Study

    ERIC Educational Resources Information Center

    Goodwin, A. Lin

    2009-01-01

    In an exploratory study of 12 teacher education programs representing various geographic regions and institutional types according to the American Association of Colleges for Teacher Education, this author and a colleague (Goodwin & Oyler, 2008) learned from teacher educators across the country about the many constraints they work within, the lack…

  9. The History of Rhetoric and Composition as Cultural Studies.

    ERIC Educational Resources Information Center

    Uchmanowicz, Pauline

    Writing has always been connected to technology. Following the formation of the Conference on College Composition and Communication (CCCC), cultural studies flourished in writing and communications classrooms because of activities related to the nexus between rhetoric and composition, communication theory, emergent technological mediums and…

  10. Social Studies: World History Through Art and Music.

    ERIC Educational Resources Information Center

    Foreman, James M.

    This course of study was written as part of a total effort to revise curriculum to fit the quinmester (five 9-week periods) administrative organization of the Dade County Schools. The major intent of this publication is to provide a broad framework of goals and objectives, content, teaching strategies, class activities, and materials all related…

  11. Using the History of Economic Ideas to Teach Social Studies.

    ERIC Educational Resources Information Center

    O'Donnel, Margaret G.

    1987-01-01

    Illustrates how the ideas of classical economists Adam Smith, Thomas Robert Malthus, David Ricardo, and John Stewart Mill are excellent sources for the contemporary social studies teacher. Suggests classroom applications to be used in conjunction with explanation of the economic principles of each of the above-named theorists. (AEM)

  12. Including History in the Study of Psychological and Political Power

    ERIC Educational Resources Information Center

    Reich, Stephanie M.; Pinkard, Tracy; Davidson, Heather

    2008-01-01

    Isaac Prilleltensky's (2003) concept of psychopolitical validity stresses the need to consider both the political and the psychological nature of power in the study of wellness, oppression, and liberation. The authors advocate that psychopolitical validity would be strengthened if it included an explicit appreciation of historical context. The…

  13. The Newspaper in the History and Social Studies Classroom.

    ERIC Educational Resources Information Center

    Lamb, Susan

    1980-01-01

    Outlines method for using the newspaper in the secondary school social studies classroom by comparing coverage of a single major event in several newspapers. Students compare headline, placement, length, pictures, related stories, and editorials. An example of the Iran rescue attempt is provided. (KC)

  14. The History, Development, and Future of Ethnic Studies.

    ERIC Educational Resources Information Center

    Hu-DeHart, Evelyn

    1993-01-01

    Ethnic-studies programs, arising from a student and community grass-roots movement, challenge the prevailing academic power structure and the Eurocentric curricula of American colleges and universities. There is little uniformity or stability among 700 ethnic-specific programs and departments. The challenge is reconciling academic goals (knowledge…

  15. Successful Principal Leadership: Australian Case Studies

    ERIC Educational Resources Information Center

    Gurr, David; Drysdale, Lawrie; Mulford, Bill

    2005-01-01

    Purpose: This paper aims to provide an Australian perspective on successful school leadership. Design/methodology/approach: The paper focuses on case studies in two Australian states (Tasmania and Victoria). Case studies for each state were developed independently and are reported separately. Findings: The findings show a remarkable degree of…

  16. Case Study Considerations for Teaching Educational Psychology.

    ERIC Educational Resources Information Center

    Sudzina, Mary R.

    This paper examines the decisions, benefits, and difficulties in teaching educational psychology through a constructivist case study approach. Recent interest in and inquiry into constructivism, pedagogical content knowledge, and case study methodology are influencing the content and goals of educational psychology in teacher preparation. The…

  17. A Case Study of "Empathetic Teaching Artistry"

    ERIC Educational Resources Information Center

    Risner, Doug

    2014-01-01

    This case study is one of twenty cases derived from Anderson and Risner's international study of teaching artists in dance, and theatre, which investigated participants' (n=172) artistic and academic preparation in dance, and theatre, initial entry into the teaching artist field, rewards, challenges, and obstacles in participants' work, artists'…

  18. Chemical Case Studies: Science-Society "Bonding."

    ERIC Educational Resources Information Center

    Hofstein, Avi; Nae, Nehemia

    1981-01-01

    Describes a unit designed to illustrate the "science-society-technology connection," in which three case studies of the chemical industry in Israel are presented to high school chemistry students. Chosen for the unit are case studies on copper production in Timna, on plastics, and on life from the Dead Sea. (CS)

  19. Twenty Techniques for Teaching with Case Studies

    ERIC Educational Resources Information Center

    Sudzina, Mary R.

    2005-01-01

    Problem-based learning and teaching with case studies are instructional approaches that are increasingly being applied in a variety of disciplines, such as business, law, medicine, and education. Instructors who have experienced traditional, teacher-centered instruction are often looking for ways to successfully integrate case studies, a…

  20. Case Studies for Teaching Students with Dyslexia

    ERIC Educational Resources Information Center

    Macnamara, Gael R.

    2004-01-01

    This easy-to-use book of case studies helps you recognize the signs of dyslexia and prescribe effective teaching strategies for students with dyslexia. It includes a Case Study Analysis Sheet so you can work through important aspects of a student's personal, academic, and social life. You can then compare what you've compiled to the author's…

  1. Iowa College Student Aid Commission Case Study

    ERIC Educational Resources Information Center

    Leigh, Rachel A.

    2007-01-01

    The purpose of this descriptive case study was to trace the policy production process of a state agency, the Iowa College Student Aid Commission (Commission), to its function today. This case study relied on a review of federal and state statutes, a news article search, biennium reports of the Commission, and information obtained from the…

  2. Teaching Case Studies: A Collaborative Approach.

    ERIC Educational Resources Information Center

    Buffington, James R.; Harper, Jeffrey S.

    Many of the Association to Advance Collegiate Schools of Business (AACSB) accredited schools require undergraduate Management Information Systems (MIS) majors to take a course in the management of information technology. Over half of these schools utilize case studies in the teaching of this course. The authors emphasize that case studies are an…

  3. Case Studies in Middle Management Supervision

    ERIC Educational Resources Information Center

    White, Lori S.

    2011-01-01

    This chapter presents a series of supervision-related case studies of situations that midlevel managers might face. Individuals enrolled in a midlevel management professional development course recommended the topics selected for this chapter. Drawing upon her experience teaching the course, the author selected four case studies that individuals…

  4. Case Studies in Reading: An Annotated Bibliography.

    ERIC Educational Resources Information Center

    Trela, Thaddeus M., Comp.; Becker, George J., Comp.

    Descriptions of individual diagnosis and remediation of reading problems experienced by students at all levels are included in this annotated bibliography. Included are books, texts having case study sections, and journal reports which together comprise useful sources of case studies of reading disabilities. An opening section lists nine "first…

  5. A Constructive Controversy Approach to "Case Studies"

    ERIC Educational Resources Information Center

    Bird, Sharon R.; Erickson, Karla A.

    2010-01-01

    On the basis of analysis of student responses to a case study titled "Drinks and Dinner," the authors evaluate the pedagogical potential of using constructive controversy case studies to teach about inequality. "Drinks and Dinner" is designed to capture the complexity of social interactions that defy simple solutions to engage students in…

  6. Collaboration in Distance Education. International Case Studies.

    ERIC Educational Resources Information Center

    Moran, Louise, Ed.; Mugridge, Ian, Ed.

    This book contains nine case studies of collaboration in distance education. The case studies focus on such aspects of collaboration in distance education as the following: roles of individual institutional partners; importance of personal relationships; benefits of collaboration to individual partners; conflicts between collaboration and…

  7. Case-Control Study of Writer's Cramp

    ERIC Educational Resources Information Center

    Roze, E.; Soumare, A.; Pironneau, I.; Sangla, S.; de Cock, V. Cochen; Teixeira, A.; Astorquiza, A.; Bonnet, C.; Bleton, J. P.; Vidailhet, M.; Elbaz, A.

    2009-01-01

    Task-specific focal dystonias are thought to be due to a combination of individual vulnerability and environmental factors. There are no case-control studies of risk factors for writer's cramp. We undertook a case-control study of 104 consecutive patients and matched controls to identify risk factors for the condition. We collected detailed data…

  8. The study of virus structure and function: a personal history

    NASA Astrophysics Data System (ADS)

    Rossmann, Michael G.

    2014-09-01

    I describe my gradually evolving role as a scientist from my birth in Frankfurt (Germany) to my education in the UK, my post-doc years and my experiences as an independent investigator at Purdue University1. I discuss the significance of my post-doctoral work in Minnesota where I had my first encounter with an electronic computer and subsequently in Cambridge where I participated in the first structure determination of proteins. After six years back in England my family moved to Indiana (USA) where my home remains to this day. At Purdue University I first studied the structure of enzymes and in the process I discovered the organization and slow evolution of protein domains, each with a specific function. With this success I started what had been on my mind already for a long time, namely the structural analysis of viruses. Initially we studied plant viruses but then switched to small RNA animal viruses, discovering that some plant and animal RNA viruses have closely similar structures and therefore presumably had a common evolutionary origin. Next I became interested in somewhat larger viruses that had lipid membrane envelopes. In turn that has led to the study of very large dsDNA viruses as big as small bacteria as well as studies of bacterial viruses that require complex molecular motors for different parts of their life cycle. While developing crystallographic techniques for the study of viruses it has become progressively more apparent that electron microscopy is an important new tool that is likely to eclipse x-ray crystallography in the next decade.

  9. Recent history of Saker Falcon studies in Mongolia

    USGS Publications Warehouse

    Ellis, D.H.

    2001-01-01

    This report clarifies recent studies on the saker falcon in Mongolia. In the last five years, three museum studies appeared on the Altay falcon (is it a gyrfalcon, saker or separate species). These showed that all of the most distinct Central Asian summer specimens were from only two mountain ranges. However, there is a continuum between sakers and Altay falcons and the two should be considered synonymous. Of field studies focused on the saker in Mongolia, the first was conducted by Baumgart in the 1970s. The next (my own) began in 1994 with a Mongolia-wide study of the nesting ecology of the species. From that study, we now have over 150 breeding territories with over 200 eyries described. Resulting publications dealt with reproductive performance of the falcons and unusual breeding situations. Not only were many nests in odd situations, many were also composed mainly of manmade materials. We found that birds sometimes became entangled in twine and cloth in such nests and either died or would have died without our intervention. Our work also led to observations of novel social behavior including the first documentation of siblicide for any falcon and the description of a new falcon display, splayed-toes-flight. Aware that saker populations in Kazakhstan and elsewhere were plummeting due to over harvest for falconry and seeing a growing harvest in Mongolia, in 1997, we began efforts to build artificial eyries for the falcons. To date, over 150 artificial eyries have been created. In 1998, there was a great expansion of saker field work after the National Avian Research Center (NARC) of the United Arab Emirates became directly involved in hiring Mongol students and scientists. Those efforts resulted in an immediate estimate of the breeding population. Continuing work promises to provide good information on home range, food habits, productivity and other topics.

  10. Regional case studies--Africa.

    PubMed

    Prentice, Andrew M

    2009-01-01

    Africa is the final continent to be affected by the nutrition transition and, as elsewhere, is characterized by the paradoxical coexistence of malnutrition and obesity. Several features of the obesity epidemic in Africa mirror those in other emerging nations: it penetrates the richer nations and urban areas first with a strong urban- rural gradient; initially it affects the wealthy, but later there is a demographic switch as obesity becomes a condition more associated with poverty, and it shares many of the same drivers related to the increasing affordability of highly refined oils and carbohydrates, and a move away from subsistence farm work and towards sedentary lifestyles. Africa also has some characteristics of the obesity epidemic that stand out from other regions such as: (1) excepting some areas of the Pacific, Africa is probably the only region in which obesity (especially among women) is viewed culturally as a positive and desirable trait, leading to major gender differences in obesity rates in many countries; (2) most of Africa has very low rates of obesity in children, and to date African obesity is mostly an adult syndrome; (3) Africans seem genetically prone to higher rates of diabetes and hypertension in association with obesity than Caucasians, but seem to be relatively protected from dislipidemias; (4) the case-specific deaths and disabilities from diabetes and hypertension in Africa are very high due to the paucity of health services and the strain that the 'double burden' of disease places on health systems.

  11. Natural History of Polyomaviruses in Men: The HPV Infection in Men (HIM) Study

    PubMed Central

    Hampras, Shalaka S.; Giuliano, Anna R.; Lin, Hui-Yi; Fisher, Kate J.; Abrahamsen, Martha E.; McKay-Chopin, Sandrine; Gheit, Tarik; Tommasino, Massimo; Rollison, Dana E.

    2015-01-01

    Background. Several new polyomaviruses have been discovered in the last decade, including Merkel cell polyomavirus (MCPyV). Little is known about the natural history of the more recently discovered polyomaviruses. We estimated the incidence, prevalence, and persistence of 9 polyomaviruses (MCPyV, BK polyomavirus, KI polyomavirus, JC polyomavirus, WU polyomavirus, Human polyomavirus 6 [HPyV6], HPyV7, HPyV9, and Trichodysplasia spinulosa–associated polyomavirus) and examined factors associated with MCPyV infection in a prospective cohort of 209 men initially enrolled in the HPV Infection in Men (HIM) study. Methods. Participants enrolled at the US site of the HIM study were recruited into a substudy of cutaneous viral infections and followed for a median of 12.6 months. Eyebrow hair and normal skin swab specimens were obtained at each study visit, and the viral DNA load was measured using multiplex polymerase chain reaction. Results. MCPyV infection showed the highest prevalence (65.1% of normal skin swab specimens and 30.6% of eyebrow hair specimens), incidence (81.7 cases per 1000 person-months among normal skin swab specimens, and 24.1 cases per 1000 person-months among eyebrow hair specimens), and persistence (85.8% of normal skin swab specimens and 58.9% of eyebrow hair specimens) among all polyomaviruses examined. Age of >44 years (odds ratio [OR], 2.11; 95% confidence interval [CI], 1.03–4.33) and Hispanic race (OR, 2.64; 95% CI, 1.01–6.88) were associated with an increased prevalence of MCPyV infection in eyebrow hair and normal skin swab specimens, respectively. Conclusion. MCPyV infection is highly prevalent in adults, with age and race being predisposing factors. PMID:25387582

  12. Case Histories of Six Consumers and Their Families in Cash and Counseling

    PubMed Central

    San Antonio, Patricia M; Simon-Rusinowitz, Lori; Loughlin, Dawn; Eckert, J Kevin; Mahoney, Kevin J

    2007-01-01

    Objective To examine how the lives of consumers and their caregivers were affected by making choices and controlling their own resources with the cash option, this paper focuses on six case studies from the Cash and Counseling Demonstration Program. Data Sources Twenty-one consumers, caregivers, and state consultants were interviewed about their experiences in the program. Study Design The data come from a larger study of over 200 interviews conducted from June 2000 to August 2004. Interview data were analyzed for themes about caregiving and program satisfaction. Principal Findings Cash and Counseling benefited consumers and caregivers by allowing consumers increased continuity and reliability of care, increased ability to set hours of care, more satisfaction with how caregiving is offered and more satisfaction with the quality of care. Conclusions The cash option allowed consumers to create, schedule, and manage their own model of care. Some consumers faced challenges in the program with paperwork, accounting, worries about receiving care, and some ineffective state consultants who could have been more helpful. PMID:17244296

  13. The Ten-Year History of the Asklepios Study

    PubMed Central

    Park, Jeong Bae

    2015-01-01

    The Asklepios study started 10 years ago when 2,500 subjects were screened between 2002 and 2004. And all of the 90+ publications we have for the moment are from those cross-sectional data. This is called round 1. Since 2011, in round 2, all of those patients have started to come back for a 10-year follow-up. At this moment, approximately 1,750 of those patients have been seen. The patients were followed by general practitioners (GP), and the GP again provided the information about what has happened with the medical status in the past 10 years including drug therapy: not only the drugs that they are taking at the moment were evaluated, but, because patients often use many drugs, the chronicles of drugs for major risk factors, for hypertension, lipids, contraceptives and more. Then, patients come to the study center where the same cluster of examinations are undertaken by one single doctor, Prof. Ernst R. Rietzschel and one study nurse, just like 10 years ago. Again, using a single observer at the two time frames has kept the methodology very strict. PMID:26587452

  14. Phonetic study of North American languages history and results

    NASA Astrophysics Data System (ADS)

    Maddieson, Ian

    2005-04-01

    Serious phonetic study of North America languages started at the beginning of the 20th century. Within limits of available technology, aspects of speech articulation, aerodynamics and acoustics were investigated. One clear motivation was to understand how classes of sounds unfamiliar from study of better-known European and Asian languages were produced. Glottalized consonants and stops then referred to as ``intermediate'' (voiceless unaspirated) received particular attention. Nasal airflow, lip position in vowels, and tone and pitch accent were also investigated. Significant insights on relative timing were obtained, inter alia foreshadowing VOT measurement as a useful discriminator of laryngeal activity and revealing part of the mechanism by which ejective consonants are made. After the 1920's, the idea of ``psychologically real'' phonemes which ignored phonetic differences became the ruling paradigm in American linguistics, contributing to a decline of interest in phonetic studies that basically lasted until around the 1980's. When interest renewed, a new vision that phonetic patterns show regularities independent of phonemic structure guided research, and considerable attention was also paid to how indigenous American languages fit into overall phonetic typologies. Recent work is also often informed by concern for documentation of endangered languages and community interest in language revival.

  15. Five case studies of multifamily weatherization programs

    SciTech Connect

    Kinney, L; Wilson, T.; Lewis, G.; MacDonald, M.

    1997-12-31

    The multifamily case studies that are the subject of this report were conducted to provide a better understanding of the approach taken by program operators in weatherizing large buildings. Because of significant variations in building construction and energy systems across the country, five states were selected based on their high level of multifamily weatherization. This report summarizes findings from case studies conducted by multifamily weatherization operations in five cities. The case studies were conducted between January and November 1994. Each of the case studies involved extensive interviews with the staff of weatherization subgrantees conducting multifamily weatherization, the inspection of 4 to 12 buildings weatherized between 1991 and 1993, and the analysis of savings and costs. The case studies focused on innovative techniques which appear to work well.

  16. Are nested case-control studies biased?

    PubMed Central

    Langholz, Bryan; Richardson, David

    2014-01-01

    It has been recently asserted that the nested case-control study design, in which case-control sets are sampled from cohort risk sets, can introduce bias (“study design bias”) when there are lagged exposures. The bases for this claim include a theoretic and an “empirical evaluation” argument. Both of these arguments are examined and found to be incorrect. Appropriate methods to explore the performance of nested case-control study designs, analysis methods, and compute power and sample size from an existing cohort are described. This empirical evaluation approach relies on simulating case-control outcomes from risk sets in the cohort from which the case-control study is to be performed. Because it is based on the underlying cohort structure, the empirical evaluation can provide an assessment that is tailored to the specific characteristics of the study under consideration. The methods are illustrated using samples from the Colorado Plateau uranium miners cohort. PMID:19289963

  17. Theoretical pluralism in psychoanalytic case studies

    PubMed Central

    Willemsen, Jochem; Cornelis, Shana; Geerardyn, Filip M.; Desmet, Mattias; Meganck, Reitske; Inslegers, Ruth; Cauwe, Joachim M. B. D.

    2015-01-01

    The aim of this study is to provide an overview of the scientific activity of different psychoanalytic schools of thought in terms of the content and production of case studies published on ISI Web of Knowledge. Between March 2013 and November 2013, we contacted all case study authors included in the online archive of psychoanalytic and psychodynamic case studies (www.singlecasearchive.com) to inquire about their psychoanalytic orientation during their work with the patient. The response rate for this study was 45%. It appears that the two oldest psychoanalytic schools, Object-relations psychoanalysis and Ego psychology or “Classical psychoanalysis” dominate the literature of published case studies. However, most authors stated that they feel attached to two or more psychoanalytic schools of thought. This confirms that the theoretical pluralism in psychoanalysis stretches to the field of single case studies. The single case studies of each psychoanalytic school are described separately in terms of methodology, patient, therapist, or treatment features. We conclude that published case studies features are fairly similar across different psychoanalytic schools. The results of this study are not representative of all psychoanalytic schools, as some do not publish their work in ISI ranked journals. PMID:26483725

  18. Theoretical pluralism in psychoanalytic case studies.

    PubMed

    Willemsen, Jochem; Cornelis, Shana; Geerardyn, Filip M; Desmet, Mattias; Meganck, Reitske; Inslegers, Ruth; Cauwe, Joachim M B D

    2015-01-01

    The aim of this study is to provide an overview of the scientific activity of different psychoanalytic schools of thought in terms of the content and production of case studies published on ISI Web of Knowledge. Between March 2013 and November 2013, we contacted all case study authors included in the online archive of psychoanalytic and psychodynamic case studies (www.singlecasearchive.com) to inquire about their psychoanalytic orientation during their work with the patient. The response rate for this study was 45%. It appears that the two oldest psychoanalytic schools, Object-relations psychoanalysis and Ego psychology or "Classical psychoanalysis" dominate the literature of published case studies. However, most authors stated that they feel attached to two or more psychoanalytic schools of thought. This confirms that the theoretical pluralism in psychoanalysis stretches to the field of single case studies. The single case studies of each psychoanalytic school are described separately in terms of methodology, patient, therapist, or treatment features. We conclude that published case studies features are fairly similar across different psychoanalytic schools. The results of this study are not representative of all psychoanalytic schools, as some do not publish their work in ISI ranked journals.

  19. Migration and generation of contaminants from launch through recovery: LDEF case history

    NASA Technical Reports Server (NTRS)

    Crutcher, E. R.; Nishimura, L. S.; Warner, K. J.; Wascher, W. W.

    1992-01-01

    It is possible to recreate the contamination history of the Long Duration Exposure Facility (LDEF) through an analysis of its contaminants and selective samples that were collected from surfaces with better documented exposure histories. This data was then used to compare estimates based on monitoring methods that were selected for the purpose of tracking LDEF's exposure to contaminants. The LDEF experienced much more contamination than would have been assumed based on the monitors. Work is still in progress but much of what was learned so far is already being used in the selection of materials and in the design of systems for space. Now experiments are being prepared for flight to resolve questions created by the discoveries on the LDEF. A summary of what was learned about LDEF contaminants over the first year since recovery and deintegration is presented. Over 35 specific conclusions in 5 contamination related categories are listed.

  20. Dietary Fat and Vitamin E in Prostate Cancer Risk Among African Americans and Africans: A Case-Control Study

    DTIC Science & Technology

    2007-02-01

    history , dietary patterns, and nutrient levels will be compared between cases and controls to determine the fatty acid risk factors for prostate cancer...564 848 Table 17: History of Previous DRE among Study Participants Ethno-Cultural Group Previous DRE African- American African...Know 32(50.0) 2(100.0) 34 51.5 Total 64 2 66 Table 20: History of Urinary Symptoms among Study Participants Ethno