The use of free visual aids in the teaching of economic geography

Thesis (Ed.M.)--Boston Universit

Electrode reactions in zinc electrolysis

The effects of temperatures from 0°C to 50°C and current densities from 10 asf to 200 asf on the current efficiency in the electrolysis of pure zinc sulfate solutions (65 gpl Zn⁺⁺ - 200 gpl H₂SO₄) were determined. Pure platinum and platinum coated titanium anodes were used with an aluminum cathode. Platinum anodes were not inert at certain combinations of temperature and current density, and platinum acted as a low overvoltage impurity causing resolution of the cathode deposit. Orientation of the zinc deposits was found to vary with temperature and to have a distinct relationship to current efficiency. Preconditioning of lead and lead alloy anodes was investigated as a possible means of producing a stable anode. Electrodes were conditioned in fluoride solutions and compared to anodes conditioned in H₂SO₄ solutions under similar circumstances. The scanning electron microscope was utilized to study the morphology of the anodic coating. X-ray and potential decay data were employed to determine the phases present on the electrode surface --Abstract, page ii

Working together to improve the quality of mathematics education and students achievements: exploring the views of Ghanaian parents

Parental involvement in their children’s education and for that matter mathematics education has become one of the main areas of research interest. The purpose of this study is to explore the attitudes of Ghanaian parent-students towards their children’s education and the factor that influence their participation. An exploratory survey approach was used in this study, and a 38 item semi-structured questionnaire was used for collecting data. A total of 130 parent-students from enrolled in diploma and degree programmes in three universities took part in the study. Similar to the findings from other similar studies, the majority of these parents acknowledged the importance of parental involvement and indicated their willingness to be involved in their children's education. It was, however, interesting to note that majority of these parents have never seen or had access to the two main mathematics resources used in their children’s schools: the mathematics syllabus and the mathematics textbook. In addition, the majority of these parents see the teacher as the custodian of knowledge and seem to rely over on them for the success of their children. It is recommended that school and teachers have to be proactive in designing Maths Clubs and other activities to get parents actively involved.Keywords: Parents; mathematics education; perception; school climate; involvemen

Using microtechnology to quantify torso angle during match-play in field hockey

Warman, GE, Cole, MH, Johnston, RD, Chalkley, D, and Pepping, GJ. Using microtechnology to quantify torso angle during match-play in field hockey. J Strength Cond Res 33(10): 2648–2654, 2019—Field hockey is played in a dynamic environment placing specific postural demands on athletes. Little research has been devoted to understanding the nature of a player's torso postures in field hockey match-play and its relationship with the perceptuomotor demands of the sport. We used commercially available microtechnology worn by 16 athletes during a 6-match national tournament to quantify torso flexion/extension angles. Orientation was derived using the inertial and magnetic sensors housed within global positioning system devices, assessing torso angle in the sagittal plane from 91 individual match files. The main independent variable was playing position, whereas the dependent variable was torso flexion/extension, presented as a percentage of playing time spent in 15 × 10° torso postural bands ranging from ≥40° extension to ≥90° flexion. It was shown that athletes spent 89.26% of their playing time in various torso postures, ranging from 20 to 90° of flexion. Defenders spent more time than midfielders (p = 0.004, effect size [ES] = 0.43) and strikers (p = 0.004; ES = 0.44) in the posture band of 10–20° torso flexion, whereas midfielders spent more time between 20 and 30° of torso flexion (p = 0.05; ES = 0.32) than strikers. Conversely, strikers spent more time between 30 and 40° of flexion than defenders (p < 0.001; ES = 0.74). These results reflect the sport-specific and role-specific torso angles adopted by field hockey athletes during match-play. Coaching staff can use these data to gain insight into the postural demands of their sport and inform the preparation of athletes for the perception-action demands of competition

Racism Is a Life Issue Panel Discussion

Jul 28, 2020 A moderated discussion on racism and the culture of life with distinguished panelists G. Marcus Cole (Dean, Notre Dame Law School), Sen. Katrina Jackson (Louisiana State Senate), Ernest Morrell (University of Notre Dame), Gloria Purvis (EWTN Global Catholic Radio), Jacqueline Rivers (Harvard University), and Benjamin Watson (NFL Legend)

Acceptability and implementation challenges of smartphone-based training of community health nurses for visual inspection with acetic acid in Ghana : mHealth and cervical cancer screening

Unidad de excelencia María de Maeztu MdM-2015-0552Objective To explore acceptability and feasibility of smartphone-based training of low-level to mid-level health professionals in cervical cancer screening using visual inspection with acetic acid (VIA)/cervicography. Design In 2015, we applied a qualitative descriptive approach and conducted semi-structured interviews and focus groups to assess the perceptions and experiences of community health nurses (CHNs) (n=15) who performed smartphone-based VIA, patients undergoing VIA/cryotherapy (n=21) and nurse supervisor and the expert reviewer (n=2). Setting Community health centres (CHCs) in Accra, Ghana. Results The 3-month smartphone-based training and mentorship was perceived as an important and essential complementary process to further develop diagnostic and management competencies. Cervical imaging provided peer-to-peer learning opportunities, and helped better communicate the procedure to and gain trust of patients, provide targeted education, improve adherence and implement quality control. None of the patients had prior screening; they overwhelmingly accepted smartphone-based VIA, expressing no significant privacy issues. Neither group cited significant barriers to performing or receiving VIA at CHCs, the incorporation of smartphone imaging and mentorship via text messaging. CHNs were able to leverage their existing community relationships to address a lack of knowledge and misperceptions. Patients largely expressed decision-making autonomy regarding screening. Negative views and stigma were present but not significantly limiting, and the majority felt that screening strategies were acceptable and effective. Conclusions Our findings suggest the overall acceptability of this approach from the perspectives of all stakeholders with important promises for smartphone-based VIA implementation. Larger-scale health services research could further provide important lessons for addressing this burden in low-income and middle-income countries

In search of the authentic nation: landscape and national identity in Canada and Switzerland

While the study of nationalism and national identity has flourished in the last decade, little attention has been devoted to the conditions under which natural environments acquire significance in definitions of nationhood. This article examines the identity-forming role of landscape depictions in two polyethnic nation-states: Canada and Switzerland. Two types of geographical national identity are identified. The first – what we call the ‘nationalisation of nature’– portrays zarticular landscapes as expressions of national authenticity. The second pattern – what we refer to as the ‘naturalisation of the nation’– rests upon a notion of geographical determinism that depicts specific landscapes as forces capable of determining national identity. The authors offer two reasons why the second pattern came to prevail in the cases under consideration: (1) the affinity between wild landscape and the Romantic ideal of pure, rugged nature, and (2) a divergence between the nationalist ideal of ethnic homogeneity and the polyethnic composition of the two societies under consideration

Mental imagery and software visualization in high-performance software development teams

This paper considers the relationship between mental imagery and software visualization in professional, high-performance software development. It presents overviews of four empirical studies of professional software developers in high-performing teams: (1) expert programmers' mental imagery, (2) how experts externalize their mental imagery as part of teamwork, (3) experts' use of commercially available visualization software, and (4) what tools experts build themselves, how they use the tools they build for themselves, and why they build tools for themselves. Through this series of studies, the paper provides insight into a relationship between how experts reason about and imagine solutions, and their use of and requirements for external representations and software visualization. In particular, it provides insight into how experts use visualization in reasoning about software design, and how their requirements for the support of design tasks differ from those for the support of other software development tasks. The paper draws on theory from other disciplines to explicate issues in this area, and it discusses implications for future work in this field