The Geoscience Quantitative Preparation Survey (GQPS) was developed to address a deficiency in the available literature regarding the competency and preparation of early-career geologists in geoscience job-related quantitative skills – namely, geologic numeracy. The final version of the GQPS included self-confidence, usage, satisfaction, and demographic sections. The GQPS was expected to produce data that would allow for an evaluation of the geologic numeracy of early-career geologists and the success of approximately 20 years of increased focus on quantitatively literate geoscience graduates. The self-confidence section of the GQPS included quantitative methods and quantitative skills. The usage section asked whether participants used methods or skills from the confidence section in both work and non-work settings. Satisfaction items asked how satisfied participants were with the quantitative preparation they received as undergraduates, relative to career needs, and included items on quantitative problem solving, quantitative communication, and computers. Limited demographic information was collected including time since bachelor’s graduation, years of related experience, undergraduate alma mater, current job status and field, and highest level of education. Satisfaction values for quantitative problem solving and quantitative communication indicate that respondents were largely satisfied with their undergraduate preparation, with values slightly higher for the geoscience department than for the university as a whole. Satisfaction items related to the use of computers were nearly uniform across all response levels and were not indicative of satisfaction (or any other particular response). Demographic responses indicate it is reasonable to make some generalizations to the overall population of early-career geologists. Early-career geologists in the sample population showed indications of geologic numeracy. This result indicates the educational trend of the last 20 years of focus on quantitatively literate geoscience graduates has had some success, although this focus cannot be compared to prior years due to lack of data. The GQPS was successful for answering its research questions, but requires validation as a complete scale before it is likely to be used by outside parties.

Recent meetings and publications have discussed what geoscience undergraduates should learn for professional success, and among other items, have identified several quantitative skills and habits of mind as being necessary for geoscience students; many of these items are commonly associated with Quantitative Literacy (QL). The Computational Geology course in the geology department has been evolving at USF for 20 years. The course teaches QL in a geologic setting independent of specific core geology topics. This course has long preceded the national acknowledgment of the need for what it teaches within the field. As the first of a series of related studies intended to find the effect and role of this course within the geoscience community, this thesis study begins as a qualitative narrative inquiry of course and program alumni. In the study reported here ten USF Geology alumni from a variety of career paths who took GLY 4866 between 1997 to 2013 underwent semi-structured interviews recounting their memories of the course, discussing the benefits to them of the course in their careers, and outlining their views of what students should gain from this course for professional success. The interview results illuminate trends that can be usefully grouped by job/career category. Regulators (3) had the shortest overall interview time, remembered the least in terms of specific events from the course, and had limited (but consistent) suggestions for student learning. Their memories and suggestions were also rarely unique. Consultants (3) were the median group in length, and showed overlap in the content of their interviews to regulators, with additional details added. Academics (4) had the longest interview times, the most detailed memories from the course, and the most suggestions, possibly due to these interviewees using similar methods in their later careers as course instructors. Consultants and academics related large blocks of story text that were unique while also relating common statements. Narratives from professionally successful alumni were sought to gain greater detail on the likely impact of Computational Geology than surveys are likely to give. The responses of selected, successful alumni were also sought to help refine questions that are to be used later in surveys of a larger sample population of alumni and to a larger national audience of geoscientists regarding their undergraduate programs and how those programs prepared them with quantitative skills. The information that interview subjects provided about the educational needs for successful entry-level geology professionals were shaped into a series of suggestions for course and program improvement. Course and program improvement suggestions and questions for a proposed survey have been assembled both to improve the GLY 4866 offering at USF for broader dissemination and to contribute to broader discussion of strategies for improving the quantitative skills and learning of geoscientists.

The purpose of this thesis is to examine the abundance systematics of Li, Be and B, and Li isotopic systematics in lavas from the Society Islands, an enriched mantle (EMII) intraplate site, to further characterize the chemical signatures in the sources for ocean island basalts that may result from subduction-related processes and mantle entrainment. The goal is to see how light-element and Li-isotope systematics vary during ocean-island volcanic evolution and during tropical weathering.B/K, B/Be and Li/V ratios in basaltic Moorea lavas are 0.0001-.0002, 0.6-2.0 and 0.01-0.05 respectively, and the more evolved samples are somewhat higher. These ratios are similar to those for other Society Island lavas, and lower than those for lavas from St. Helena, Erebus, Hawaii, Gough and Reunion, as well as analyzed mid-ocean ridge basalts (MORBs). Li values for Moorea cluster at +3 +5 percent for the freshest lavas, and 0+2 percent for more weathered rocks.These new data from Moorea are consistent with earlier survey results from the Society Islands and indicate a mantle source that includes B-poor (subducted) materials. 7Li values for the freshest Moorea samples are similar to those of other Society Island lavas, suggesting that the EMII isotopic end-member records a Li-isotopic signature similar to that of MORBs. Dilution by entrainment of upper mantle material is unlikely due to differing B/K ratios and similar Li values for the Society and Hawaiian plumes.

Our understanding of tephra depositional processes is significantly improved by high-resolution ground-penetrating radar (GPR) data collected at Cerro Negro volcano, Nicaragua. The data reveal three depositional regimes: (1) a near-vent region on the cone itself, where 10 GPR radargrams collected on the western flank show quantifiable differences between facies formed from low energy normal Strombolian and higher energy violent Strombolian processes, indicating imaging of scoria cone deposits may be useful in distinguishing eruptive style in older cones where the proximal to distal tephra blanket has eroded away; (2) a proximal zone in which horizons identified in crosswind profiles collected at distances of 700 and 1,000 m from the vent exhibit Gaussian distributions with a high degree of statistical confidence, with tephra thickness decreasing exponentially downwind from the cone base (350 m) to ~ 1,200 m from the vent, and where particles fall from a height of less than ~2 km; and (3) a medial zone, in which particles fall from ~4 to 7 km and the deposit is thicker than expected based on thinning trends observed in the proximal zone of the deposit, indicating a transition from sedimentation dominated by fallout from plume margins to that dominated by fallout from the buoyant eruption cloud. Horizons identified in a crosswind profile at 1600 m from vent exhibit Gaussian distributions, again with high degrees of statistical confidence. True diffusion coefficients are calculated from Gaussian fits of crosswind profiles and do not show any statistical variation between zones (2) and (3). Data display thinning trends that agree with the morphology predicted by the advection-diffusion equation to a high degree of statistical confidence, validating the use of this class of models in tephra forecasting. One such model, the Tephra2 model, is reformulated for student use. A strategy is presented for utilizing this research-caliber model to introduce university undergraduates to key concepts in model literacy, encouraging students to develop a deeper understanding of the applicability and limitations of hazard models generally. For this purpose, the Tephra2 numerical model is implemented on the VHub.org website, a venture in cyberinfrastructure that brings together volcanological models and educational materials, and provides students with the ability to explore and execute sophisticated numerical models like Tephra2.

What processes are responsible for the dispersal of protoplanetary disks? In this dissertation, beginning with a brief Introduction to planet detection, disk dispersal and high-contrast imaging in Chapter 1, I will describe how ground-based adaptive optics (AO) imaging can help to inform these processes. Chapter 2 presents Polarized Differential Imaging (PDI) of the transitional disk SR21 at H-band taken as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS). These observations were the first to show that transition disk cavities can appear markedly different at different wavelengths. The observation that the sub-mm cavity is absent in NIR scattered light is consistent with grain filtration at a planet-induced gap edge. Chapter 3 presents SEEDS data of the transition disk Oph IRS 48. This highly asymmetrical disk is also most consistent with a planet-induced clearing mechanism. In particular, the images reveal both the disk cavity and a spiral arm/divot that had not been imaged previously. This study demonstrates the power of multiwavelength PDI imaging to verify disk structure and to probe azimuthal variation in grain properties. Chapter 4 presents Magellan visible light adaptive optics imaging of the silhouette disk Orion 218-354. In addition to its technical merits, these observations reveal the surprising fact that this very young disk is optically thin at H-alpha. The simplest explanation for this observation is that significant grain growth has occurred in this disk, which may be responsible for the pre-transitional nature of its SED. Chapter 5 presents brief descriptions of several other works-in-progress that build on my previous work. These include the MagAO Giant Accreting Protoplanet Survey (GAPlanetS), which will probe the inner regions of transition disks at unprecedented resolution in search of young planets in the process of formation. Chapters 6-8 represent my educational research in quantitative literacy, beginning with an introduction to the literature and study motivation in Chapter 6. Chapter 7 describes the development and validation of the Quantitative Reasoning for College Science (QuaRCS) Assessment instrument. Chapter 8 briefly describes the next steps for Phase II of the QuaRCS study.

Bibliografický záznam DUBEN, Otakar. Mediální gramotnost studentů gymnázií v oblasti sociálních sítí. Praha, 2012. XX s. Diplomová práce (Mgr.) Univerzita Karlova, Fakulta sociálních věd, Institut komunikačních studií a žurnalistiky. Katedra mediálních studií. Vedoucí diplomové práce Mgr. Radim Wolák. Abstract Thesis "Media literacy of high school students in the field of social networks" focuses on the analysis of media literacy of students from first three years of high school. It aims to define the knowledge this social group needs for safe and conscious use of social networks. For treatment of the theme was used qualitative analysis with focus groups and subsequent quantitative research on a sample of 220 students in one high school in Prague. In this thesis are described analyzed patterns of teenagers in virtual milieu and the most common mistakes they commited within using this fast- growing media platform. This thesis also focuses on topics closely linked with media literacy on social network. It means the use of social networks as a reliable sources of information, secure communication tools and leisure activities as well. It doesn't omit clarification of frequent adverse events associated with the development of social networks. A separate chapter is devoted to the history of social networks and...

Individuals have become more involved in health-related decisions, in part due to an unprecedented access to information that can be used to enhance both physical and mental health. Much of this health-related information is presented in a numerical format; unfortunately, research suggests many Americans may not possess the literacy skills necessary to comprehend numerical health-related information. More research needs to be conducted to examine numeracy and its role in cancer risk perceptions, and how those risk perceptions relate to cancer self-protective behaviors. The purpose of the current study was to: (a) examine socio-demographic variables associated with numeracy, (b) determine which factors are associated with cancer risk perceptions, and (c) apply the Risk Perception Attitude (RPA) Framework to examine associations between risk perception groups and cancer self-protective behaviors. The study used data from the 2007 Health Information National Trends Survey (HINTS), which was developed by the National Cancer Institute to collect nationally representative data on the U.S. public's use of cancer-related information. Logistic regression was used to assess the association between each dependent variable and independent variables associated with each research question. Results indicated age and education were associated with objective numeracy, whereas age, education, and occupational status were associated with subjective numeracy. Among participants with a previous cancer diagnosis, objective numeracy and smoking status were associated with a somewhat high/very high perceived risk of developing cancer in the future. Age, race/ethnicity, family cancer history, smoking status, and self-reported general health were associated with a somewhat high/very high perceived risk of developing cancer in the future among participants without a previous cancer diagnosis. RPA group was not significantly associated with cancer self-protective behaviors. Findings from this study have important implications for public health, including health communication and interventions designed to enhance health behaviors. Future research should focus on using a full objective numeracy scale with a nationally representative population and examining temporal relationships between cancer risk perceptions and health behaviors.

ABSTRACT It may be of no surprise that water quality data is right-skewed, but what appears to be overlooked by some is that the arithmetic mean and standard deviation most often fail as measures of central tendency in skewed data. When using the arithmetic mean and arithmetic standard deviation with nutrient data, one standard deviation about the arithmetic mean can capture nearly all of the data and extend into negative values. Representing nutrient data this way can be misleading to viewers who are using the statistics, and making assumptions, to understand the characteristics of those waters. Through an in-depth statistical analysis of Florida's nitrogen and phosphorus data, I have found the geometric mean and multiplicative standard deviation capture a better representation of the central region of skewed data. Including the geometric mean and multiplicative standard deviation in the descriptive statistics of nutrient data is relatively simple with today's tools and helps to better describe the data. Adding these statistics can contribute to more effective understanding of nutrient concentrations, better application of data, and the development of better data-derived policy. While the suggestions of this paper are by no means original, it is with added evidence provided by the study of the skewness, distributions, and central regions of 53 nutrient data sets that I intend to help reiterate the argument that a few additional descriptive statistics can greatly empower the communication of data, and because of the ease with which they can now be calculated, there is no excuse to ignore them.

Thesis (Ed. D.)--Miami University, Dept. of Educational Leadership, 2006. / Title from second page of PDF document. Includes bibliographical references (p. 72-77).

Syftet med denna studie var att undersöka lärares syn och undervisningspraxis när det handlar om matematisk vardagskompetens. Fyra lärare intervjuades var för sig. När lärarnas svar analyserades framkom en likartad syn, att matematisk vardagskompetens handlar om den matematik man behöver för att klara sig i sin egen vardag. Denna syn går i linje med den definition som Organisation for Economic Co-operation and Development, OECD, har tagit fram och som dessutom är den som forskning i allmänhet refererar till. De uppgifter med fokus på matematisk vardagskompetens som lärarna ger till sina elever handlar både om att klara den egna vardagen och att klara sig i en framtida vardag som vuxen och yrkesarbetare.  Lärarnas undervisningspraxis skiljer sig åt då det kommer till matematisk vardagskompetens. En av lärarna har ett tydligt samarbete med yrkeslärarna och eleverna får således mycket matematisk vardagskompetens i undervisningen. Lärarna försöker i övrigt få med det i matematikundervisningen för att motivera eleverna för densamma. Hur detta sker är mer eller mindre strukturerat beskrivet. Brist på tid, för stora undervisningsgrupper och avsaknad av samarbete med yrkeslärarna nämns som faktorer som begränsar hur stort fokus lärarna har på matematisk vardagskompetens i undervisningen. / The aim of this study was to investigate teachers’ views and teaching praxes when it comes to mathematical literacy. Four teachers were interviewed individually. When the teachers’ answers were analyzed, an analogous view was displayed, that mathematical literacy is about the mathematics one needs to be able to cope with one’s own everyday life. This view corresponds to the definition Organisation for Economic Co-operation and Development, OECD, has presented and that research in general refers to. The assignments with focus on mathematical literacy, that the teachers give their students, deals both with managing one’s own everyday life and a future everyday as an adult and skilled worker.  The teachers’ teaching praxes differ when it comes to mathematical literacy. One of the teachers has a clear cooperation with the vocational teachers and the students receive therefore much mathematical literacy in the teaching. The teachers try, otherwise, to teach mathematical literacy to motivate the students for the teaching. How this is fulfilled is more or less structurally described. Deficiency of time, too large teaching groups and want of cooperation with the vocational teachers are mentioned as factors confining the focus the teachers have on mathematical literacy in the teaching.