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Sample records for undergraduate level argilas

  1. Clays as green catalysts in the cholesterol esterification: spectroscopic characterization and polymorphs identification by thermal analysis methods. An interdisciplinary laboratorial proposal for the undergraduate level; Argilas como catalisadores verdes na esterificacao do colesterol: caracterizacao espectroscopica e identificacao de polimorfos por metodos de analise termica. Uma proposta laboratorial interdisciplinar para o primeiro ciclo universitario

    Energy Technology Data Exchange (ETDEWEB)

    Maria, Teresa M R.; Nunes, Rui M. D.; Pereira, Mariette M.; Eusebio, M. Ermelinda S. [Universidade de Coimbra, Coimbra (Portugal). Dept. de Quimica], e-mail: troseiro@ci.uc.pt

    2009-07-01

    A laboratory experiment that enables the professor to introduce the problematic of sustainable development in pharmaceutical chemistry to undergraduate students is proposed, using a simple synthetic procedure. Cholesteryl acetate is prepared by the esterification of cholesterol using Montmorillonite K10 as heterogeneous catalyst. Cholesterol and cholesteryl acetate are characterized by spectroscopic ({sup 1}H RMN, {sup 13}C RMN, FTIR) and thermal analysis techniques. The thermal methods are used to introduce the concepts of polymorphism and the nature of mesophases. (author)

  2. Physical activity level among undergraduate students in ...

    African Journals Online (AJOL)

    Physical activity level among undergraduate students in Terengganu, Malaysia using pedometer. N.A.M. Yusoff, S Ganeson, K.F. Ismail, H Juahir, M.R. Shahril, L.P. Lin, A Ahmad, S.W. Wafa, S Harith, R Rajikan ...

  3. Quantum mechanical wavefunction: visualization at undergraduate level

    International Nuclear Information System (INIS)

    Chhabra, Mahima; Das, Ritwick

    2017-01-01

    Quantum mechanics (QM) forms the most crucial ingredient of modern-era physical science curricula at undergraduate level. The abstract ideas involved in QM related concepts pose a challenge towards appropriate visualization as a consequence of their counter-intuitive nature and lack of experiment-assisted visualization tools. At the heart of the quantum mechanical formulation lies the concept of ‘wavefunction’, which forms the basis for understanding the behavior of physical systems. At undergraduate level, the concept of ‘wavefunction’ is introduced in an abstract framework using mathematical tools and therefore opens up an enormous scope for alternative conceptions and erroneous visualization. The present work is an attempt towards exploring the visualization models constructed by undergraduate students for appreciating the concept of ‘wavefunction’. We present a qualitative analysis of the data obtained from administering a questionnaire containing four visualization based questions on the topic of ‘wavefunction’ to a group of ten undergraduate-level students at an institute in India which excels in teaching and research of basic sciences. Based on the written responses, all ten students were interviewed in detail to unravel the exact areas of difficulty in visualization of ‘wavefunction’. The outcome of present study not only reveals the gray areas in students’ conceptualization, but also provides a plausible route to address the issues at the pedagogical level within the classroom. (paper)

  4. Teaching Astrophysics to Upper Level Undergraduates

    Science.gov (United States)

    Van Dorn Bradt, Hale

    2010-03-01

    A Socratic peer-instruction method for teaching upper level undergraduates is presented. Basically, the instructor sits with the students and guides their presentations of the material. My two textbooks* (on display) as well as many others are amenable to this type of teaching. *Astronomy Methods - A Physical Approach to Astronomical Observations (CUP 2004) *Astrophysics Processes-The Physics of Astronomical Phenomena (CUP 2008)

  5. Quantum mechanical wavefunction: visualization at undergraduate level

    Science.gov (United States)

    Chhabra, Mahima; Das, Ritwick

    2017-01-01

    Quantum mechanics (QM) forms the most crucial ingredient of modern-era physical science curricula at undergraduate level. The abstract ideas involved in QM related concepts pose a challenge towards appropriate visualization as a consequence of their counter-intuitive nature and lack of experiment-assisted visualization tools. At the heart of the quantum mechanical formulation lies the concept of ‘wavefunction’, which forms the basis for understanding the behavior of physical systems. At undergraduate level, the concept of ‘wavefunction’ is introduced in an abstract framework using mathematical tools and therefore opens up an enormous scope for alternative conceptions and erroneous visualization. The present work is an attempt towards exploring the visualization models constructed by undergraduate students for appreciating the concept of ‘wavefunction’. We present a qualitative analysis of the data obtained from administering a questionnaire containing four visualization based questions on the topic of ‘wavefunction’ to a group of ten undergraduate-level students at an institute in India which excels in teaching and research of basic sciences. Based on the written responses, all ten students were interviewed in detail to unravel the exact areas of difficulty in visualization of ‘wavefunction’. The outcome of present study not only reveals the gray areas in students’ conceptualization, but also provides a plausible route to address the issues at the pedagogical level within the classroom.

  6. Argilas como catalisadores verdes na esterificação do colesterol: caracterização espectroscópica e identificação de polimorfos por métodos de análise térmica. Uma proposta laboratorial interdisciplinar para o 1º ciclo universitário Clays as green catalysts in the cholesterol esterification: spectroscopic characterization and polymorphs identification by thermal analysis methods. An interdisciplinary laboratorial proposal for the undergraduate level

    Directory of Open Access Journals (Sweden)

    Teresa M. R. Maria

    2009-01-01

    Full Text Available A laboratory experiment that enables the professor to introduce the problematic of sustainable development in pharmaceutical chemistry to undergraduate students is proposed, using a simple synthetic procedure. Cholesteryl acetate is prepared by the esterification of cholesterol using Montmorillonite K10 as heterogeneous catalyst. Cholesterol and cholesteryl acetate are characterized by spectroscopic (¹H RMN, 13C RMN, FTIR and thermal analysis techniques. The thermal methods are used to introduce the concepts of polymorphism and the nature of mesophases.

  7. Students' Motivation toward English Language Learning at Undergraduate Level

    Science.gov (United States)

    Ahmed, Mumtaz; Aftab, Maria; Yaqoob, Humaira

    2015-01-01

    The main purpose of this descriptive research is to explore the fact that why students are less motivated towards English language learning at undergraduate level. It also throws light upon the very facts of motivation with regard to the factors like student-teacher relationship, class room environment, self esteem or self respect, and willingness…

  8. The level of emotional intelligence in undergraduate students of nursing

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    Majerníková Ľudmila

    2017-03-01

    Full Text Available Aim. The theory of emotional intelligence provides a framework to think about all of the non-technical skills you need in order to be a good nurse. It’s often described as the potential to feel, use, communicate, recognize, remember, describe, identify, learn from, manage, understand, and explain emotions. The aim of the study was to determine the level of total global Emotional Intelligence among undergraduate students of nursing and also to check the influence of factors (the year of study, type of completed high school education on Emotional Intelligence.

  9. Academic performance and student engagement in level 1 physics undergraduates

    International Nuclear Information System (INIS)

    Casey, M M; McVitie, S

    2009-01-01

    At the beginning of academic year 2007-08, staff in the Department of Physics and Astronomy at the University of Glasgow started to implement a number of substantial changes to the administration of the level 1 physics undergraduate class. The main aims were to improve the academic performance and progression statistics. With this in mind, a comprehensive system of learning support was introduced, the main remit being the provision of an improved personal contact and academic monitoring and support strategy for all students at level 1. The effects of low engagement with compulsory continuous assessment components had already been observed to have a significant effect on students sitting in the middle of the grade curve. Analysis of data from the 2007-08 class showed that even some nominally high-achieving students achieved lowered grades due to the effects of low engagement. Nonetheless, academic and other support measures put in place during 2007-08 played a part in raising the passrate for the level 1 physics class by approximately 8% as well as raising the progression rate by approximately 10%.

  10. Academic performance and student engagement in level 1 physics undergraduates

    Energy Technology Data Exchange (ETDEWEB)

    Casey, M M; McVitie, S [Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ (United Kingdom)], E-mail: m.casey@physics.gla.ac.uk

    2009-09-15

    At the beginning of academic year 2007-08, staff in the Department of Physics and Astronomy at the University of Glasgow started to implement a number of substantial changes to the administration of the level 1 physics undergraduate class. The main aims were to improve the academic performance and progression statistics. With this in mind, a comprehensive system of learning support was introduced, the main remit being the provision of an improved personal contact and academic monitoring and support strategy for all students at level 1. The effects of low engagement with compulsory continuous assessment components had already been observed to have a significant effect on students sitting in the middle of the grade curve. Analysis of data from the 2007-08 class showed that even some nominally high-achieving students achieved lowered grades due to the effects of low engagement. Nonetheless, academic and other support measures put in place during 2007-08 played a part in raising the passrate for the level 1 physics class by approximately 8% as well as raising the progression rate by approximately 10%.

  11. Teaching Epidemiology at the Undergraduate Level: Considerations and Approaches.

    Science.gov (United States)

    Goldmann, Emily; Stark, James H; Kapadia, Farzana; McQueen, Matthew B

    2018-06-01

    The rapid growth in undergraduate public health education has offered training in epidemiology to an increasing number of undergraduate students. Epidemiology courses introduce undergraduate students to a population health perspective and provide opportunities for these students to build essential skills and competencies such as ethical reasoning, teamwork, comprehension of scientific methods, critical thinking, quantitative and information literacy, ability to analyze public health information, and effective writing and oral communication. Taking a varied approach and incorporating active learning and assessment strategies can help engage students in the material, improve comprehension of key concepts, and further develop key competencies. In this commentary, we present examples of how epidemiology may be taught in the undergraduate setting. Evaluation of these approaches and others would be a valuable next step.

  12. Evidence to Support Peer Tutoring Programs at the Undergraduate Level

    Science.gov (United States)

    Colver, Mitchell; Fry, Trevor

    2016-01-01

    The present study examined undergraduate peer tutoring in three phases. Phase I qualitatively surveyed students' perceptions about the effectiveness of tutoring. Phase II examined the usefulness of promoting regular use of services through a tutoring contract. Phase III utilized an archival, quasi-experimental approach to estimate the effect of…

  13. A Biosafety Level 2 Virology Lab for Biotechnology Undergraduates

    Science.gov (United States)

    Matza-Porges, Sigal; Nathan, Dafna

    2017-01-01

    Medical, industrial, and basic research relies heavily on the use of viruses and vectors. Therefore, it is important that bioscience undergraduates learn the practicalities of handling viruses. Teaching practical virology in a student laboratory setup presents safety challenges, however. The aim of this article is to describe the design and…

  14. Identifying the Computer Competency Levels of Recreation Department Undergraduates

    Science.gov (United States)

    Zorba, Erdal

    2011-01-01

    Computer-based and web-based applications are as major instructional tools to increase undergraduates' motivation at school. In the recreation field usage of, computer and the internet based recreational applications has become more prevalent in order to present visual and interactive entertainment activities. Recreation department undergraduates…

  15. Teaching Strategies for Personality Assessment at the Undergraduate Level.

    Science.gov (United States)

    Roche, Michael J; Jacobson, Nicholas C; Roche, Carley A

    2017-01-01

    Personality assessment is a crucial component of clinical practice, and the training and proficiency criteria to develop competence are complex and multifaceted. Like many advanced topics, the field of personality assessment would benefit from early exposure in undergraduate classroom settings. This research evaluates how an undergraduate personality course can be enhanced through 2 enrichment activities (self-assessments and a personality project). Students completed several self-assessments of their personality and wrote a comprehensive and integrative personality assessment about themselves. Results demonstrated that these activities increased interest in personality assessment, deepened understanding of course material, and promoted student growth and self-exploration. We discuss the benefits of these enrichment activities for the student, instructor, and field of personality science.

  16. A practical drug discovery project at the undergraduate level.

    Science.gov (United States)

    Fray, M Jonathan; Macdonald, Simon J F; Baldwin, Ian R; Barton, Nick; Brown, Jack; Campbell, Ian B; Churcher, Ian; Coe, Diane M; Cooper, Anthony W J; Craven, Andrew P; Fisher, Gail; Inglis, Graham G A; Kelly, Henry A; Liddle, John; Maxwell, Aoife C; Patel, Vipulkumar K; Swanson, Stephen; Wellaway, Natalie

    2013-12-01

    In this article, we describe a practical drug discovery project for third-year undergraduates. No previous knowledge of medicinal chemistry is assumed. Initial lecture workshops cover the basic principles; then students, in teams, seek to improve the profile of a weakly potent, insoluble phosphatidylinositide 3-kinase delta (PI3Kδ) inhibitor (1) through compound array design, molecular modelling, screening data analysis and the synthesis of target compounds in the laboratory. The project benefits from significant industrial support, including lectures, student mentoring and consumables. The aim is to make the learning experience as close as possible to real-life industrial situations. In total, 48 target compounds were prepared, the best of which (5b, 5j, 6b and 6ap) improved the potency and aqueous solubility of the lead compound (1) by 100-1000 fold and ≥tenfold, respectively. Copyright © 2013 Elsevier Ltd. All rights reserved.

  17. Upper-Level Undergraduate Chemistry Students' Goals for Their Laboratory Coursework

    Science.gov (United States)

    DeKorver, Brittland K.; Towns, Marcy H.

    2016-01-01

    Efforts to reform undergraduate chemistry laboratory coursework typically focus on the curricula of introductory-level courses, while upper-level courses are bypassed. This study used video-stimulated recall to interview 17 junior- and senior- level chemistry majors after they carried out an experiment as part of a laboratory course. It is assumed…

  18. Analysis of Scientific Research Related Anxiety Levels of Undergraduate Students'

    Science.gov (United States)

    Yildirim, Sefa; Hasiloglu, Mehmet Akif

    2018-01-01

    In this study, it was aimed to identify the scientific research-related anxiety levels of the undergraduate students studying in the department of faculty of science and letters and faculty of education to analyse these anxiety levels in terms of various variables (students' gender, using web based information sources, going to the library,…

  19. NSF Support for Physics at the Undergraduate Level: A View from Inside

    Science.gov (United States)

    McBride, Duncan

    2015-03-01

    NSF has supported a wide range of projects in physics that involve undergraduate students. These projects include NSF research grants in which undergraduates participate; Research Experiences for Undergraduates (REU) centers and supplements; and education grants that range from upper-division labs that may include research, to curriculum development for upper- and lower-level courses and labs, to courses for non-majors, to Physics Education Research (PER). The NSF Divisions of Physics, Materials Research, and Astronomy provide most of the disciplinary research support, with some from other parts of NSF. I recently retired as the permanent physicist in NSF's Division of Undergraduate Education (DUE), which supports the education grants. I was responsible for a majority of DUE's physics grants and was involved with others overseen by a series of physics rotators. There I worked in programs entitled Instrumentation and Laboratory Improvement (ILI); Course and Curriculum Development (CCD); Course, Curriculum, and Laboratory Improvement (CCLI); Transforming Undergraduate STEM Education (TUES); and Improving Undergraduate STEM Education (IUSE). NSF support has enabled physics Principal Investigators to change and improve substantially the way physics is taught and the way students learn physics. The most important changes are increased undergraduate participation in physics research; more teaching using interactive engagement methods in classes; and growth of PER as a legitimate field of physics research as well as outcomes from PER that guide physics teaching. In turn these have led, along with other factors, to students who are better-prepared for graduate school and work, and to increases in the number of undergraduate physics majors. In addition, students in disciplines that physics directly supports, notably engineering and chemistry, and increasingly biology, are better and more broadly prepared to use their physics education in these fields. I will describe NSF

  20. Academic level and student’s faculty as factors of test anxiety among undergraduates in Nigeria

    Directory of Open Access Journals (Sweden)

    Samuel E. Oladipo

    2013-06-01

    Full Text Available Test anxiety as a prominent problem among students has been a focus of study for decades now, with studies focusing more on such factors as age, gender and study habit in relation to test anxiety. There is a dearth of literature in respect of such factors as academic level and student’s faculty in relation to test anxiety among undergraduates. The focus of the present study therefore, was to investigate academic level and students’ faculty as factors predicting test anxiety among undergraduates in Nigeria. Using simple random sampling technique, a total of 197(126 males and 71 females undergraduates participated in the study. Their ages ranged from 16 to 30years (M=21.6,SD=2.68.Four hypotheses were tested with Pearson Product moment correlation and Multiple regression analysis. The results revealed that academic level and students’ faculty had no correlation with test anxiety. Moreover, the result of the multiple regression analysis showed that academic level and students’ faculty have no independent and joint influence on test anxiety. It was concluded that irrespective of student’s academic level and faculty, test anxiety is unavoidable. Other factors might be responsible for student test anxiety especially among undergraduates Nigeria. It is therefore recommend that more research should be conducted in this area so as to determine the salient factors that predict test anxiety.

  1. Graduate Attribute Attainment in a Multi-Level Undergraduate Geography Course

    Science.gov (United States)

    Mager, Sarah; Spronken-Smith, Rachel

    2014-01-01

    We investigated students' perceptions of graduate attributes in a multi-level (second and third year) geography course. A case study with mixed methodology was employed, with data collected through focus groups and a survey. We found that undergraduate geography students can identify the skills, knowledge and attributes that are developed through…

  2. Student Perceptions of an Upper-Level, Undergraduate Human Anatomy Laboratory Course without Cadavers

    Science.gov (United States)

    Wright, Shirley J.

    2012-01-01

    Several programs in health professional education require or are considering requiring upper-level human anatomy as prerequisite for their applicants. Undergraduate students are confronted with few institutions offering such a course, in part because of the expense and logistical issues associated with a cadaver-based human anatomy course. This…

  3. Effectiveness of E-Content Package on Teaching IUPAC Nomenclature of Organic Chemistry at Undergraduate Level

    Science.gov (United States)

    Devendiran, G.; Vakkil, M.

    2017-01-01

    This study attempts to discover the effectiveness of an e-content package when teaching IUPAC nomenclature of organic chemistry at the undergraduate level. The study consisted of a Pre-test-Post-test Non Equivalent Groups Design, and the sample of 71 (n = 71) students were drawn from two colleges. The overall study was divided into two groups, an…

  4. Assessing the Conceptual Understanding about Heat and Thermodynamics at Undergraduate Level

    Science.gov (United States)

    Kulkarni, Vasudeo Digambar; Tambade, Popat Savaleram

    2013-01-01

    In this study, a Thermodynamic Concept Test (TCT) was designed to assess student's conceptual understanding heat and thermodynamics at undergraduate level. The different statistical tests such as item difficulty index, item discrimination index, point biserial coefficient were used for assessing TCT. For each item of the test these indices were…

  5. Undergraduate Use of Library Databases Decreases as Level of Study Progresses

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    Kimberly Miller

    2014-09-01

    had the lowest percentage of use, with 38% of enrolled students at each level accessing the library’s databases. The study also found that November was the peak of database search activity, accounting for 37% of database searches for the Fall 2009 semester. Database use varied by the schools or colleges in which students were enrolled, with the School of Nursing having the highest percentage of enrolled undergraduates using library databases (54%. The authors also report that the College of Literature, Science, and the Arts had the fourth highest proportion of users at 46%, representing 7,523 unique students, more than double the combined number of undergraduate users from all other programs. Since the College of Literature, Science, and the Arts accounts for more than 60% of the total undergraduate enrollment, the authors suggest that information literacy instruction targeted to these programs would have the greatest campus-wide impact. Conclusion – Although the library conducts a number of library instruction sessions with freshman students each Fall semester, the authors conclude that database use patterns suggest that the proportion of students who continue to use library databases decreases as level of study progresses. This finding does not support the study’s hypothesis that database use increases as students advance through their undergraduate studies.

  6. How diverse are physics instructors’ attitudes and approaches to teaching undergraduate level quantum mechanics?

    International Nuclear Information System (INIS)

    Siddiqui, Shabnam; Singh, Chandralekha

    2017-01-01

    Understanding instructors’ attitudes and approaches to teaching undergraduate-level quantum mechanics can be helpful in developing effective instructional tools to help students learn quantum mechanics. Here we discuss the findings from a survey in which 12 university faculty members reflected on various issues related to undergraduate-level quantum mechanics teaching and learning. Topics included faculty members’ thoughts on the goals of a college quantum mechanics course, general challenges in teaching the subject matter, students’ preparation for the course, views about foundational issues and the difficulty in teaching certain topics, reflection on their own learning of quantum mechanics when they were students versus how they teach it to their students and the extent to which they incorporate contemporary topics into their courses. The findings related to instructors’ attitudes and approaches discussed here can be useful in improving teaching and learning of quantum mechanics. (paper)

  7. Stereotyping at the undergraduate level revealed during interprofessional learning between future doctors and biomedical scientists.

    Science.gov (United States)

    Lewitt, Moira S; Ehrenborg, Ewa; Scheja, Max; Brauner, Annelie

    2010-01-01

    Interprofessional education (IPE) involving undergraduate health professionals is expected to promote collaboration in their later careers. The role of IPE between doctors and biomedical scientists has not been explored at the undergraduate level. Our aim was to introduce IPE sessions for medical and biomedical students in order to identify the benefits and barriers to these groups learning together. Medical and biomedical students together discussed laboratory results, relevant literature, and ideas for developing new diagnostic tools. The programme was evaluated with questionnaires and interviews. While there was general support for the idea of IPE, medical and biomedical students responded differently. Biomedical students were more critical, wanted more explicit learning objectives and felt that their professional role was often misunderstood. The medical students were more enthusiastic but regarded the way the biomedical students communicated concerns about their perceived role as a barrier to effective interprofessional learning. We conclude that stereotyping, which can impede effective collaborations between doctors and biomedical scientists, is already present at the undergraduate level and may be a barrier to IPE. Effective learning opportunities should be supported at the curriculum level and be designed to specifically enable a broad appreciation of each other's future professional roles.

  8. [Level of teaching competence at the Undergraduate Medical Internship of UNAM's Faculty of Medicine].

    Science.gov (United States)

    Martínez-González, Adrián; Lifshitz-Guinzberg, Alberto; González-Quintanilla, Eduardo; Monterrosas-Rojas, Ana María; Flores-Hernández, Fernando; Gatica-Lara, Florina; Martínez-Franco, Adrián Israel; Sánchez-Mendiola, Melchor

    2017-01-01

    There is no systematic evaluation of teaching performance in the clinical area at UNAM Faculty of Medicine. The study purpose is to assess the teaching competence level in the Undergraduate Medical Internship (UMI). The paper describes the process of psychometric validity for the instrument designed to evaluate teaching competence in the UMI. This instrument was constructed from two previously developed instruments. The final version with 54 items in a Likert scale was studied with exploratory factorial analysis. Four dimensions were obtained: Solution of clinical problems, Psychopedagogy, Mentoring, and Evaluation. The instrument had a reliability of 0.994, with an explained variance of 77.75%. To evaluate the teaching competence level, we administered 844 questionnaires to a sample of students with a response rate of 89%. We obtained an overall global score of 89.4 ± 9.6 (mean ± SD). The dimension Solution of clinical problems was the one with a greater value, in contrast with the dimension of Evaluation, which had a lower score. The teachers of the UMI are considered educators with high level of teaching competence, according to the perceptions of the undergraduate internal doctors. The evaluation of teaching competence level is very important for institutions that look for the continuous professional development of its faculty.

  9. Bridging the gap between actual and required mathematics background at undergraduate university level

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    courses of Medialogy, e.g. computer graphics programming. Moreover, this poor performance in mathematics is one of the main causes for dropout at university level. This paper presents our ongoing research aiming at tackling with this problem by developing dynamic and multimodal media for math- ematics...... teaching and learning which will make mathematics more at- tractive and easier to understand to undergraduate students. These tools realise an interactive educational method by giving mathematics learners opportunities to develop visualization skills, explore mathe- matical concepts, and obtain solutions...

  10. Accelerator-based techniques for the support of senior-level undergraduate physics laboratories

    International Nuclear Information System (INIS)

    Williams, J.R.; Clark, J.C.; Isaacs-Smith, T.

    2001-01-01

    Approximately three years ago, Auburn University replaced its aging Dynamitron accelerator with a new 2MV tandem machine (Pelletron) manufactured by the National Electrostatics Corporation (NEC). This new machine is maintained and operated for the University by Physics Department personnel, and the accelerator supports a wide variety of materials modification/analysis studies. Computer software is available that allows the NEC Pelletron to be operated from a remote location, and an Internet link has been established between the Accelerator Laboratory and the Upper-Level Undergraduate Teaching Laboratory in the Physics Department. Additional software supplied by Canberra Industries has also been used to create a second Internet link that allows live-time data acquisition in the Teaching Laboratory. Our senior-level undergraduates and first-year graduate students perform a number of experiments related to radiation detection and measurement as well as several standard accelerator-based experiments that have been added recently. These laboratory exercises will be described, and the procedures used to establish the Internet links between our Teaching Laboratory and the Accelerator Laboratory will be discussed

  11. Perceived stress, depressive symptoms, and suicidal ideation in undergraduate women with varying levels of mindfulness.

    Science.gov (United States)

    Anastasiades, Maria H; Kapoor, Shweta; Wootten, Jennifer; Lamis, Dorian A

    2017-02-01

    Research has demonstrated that perceived stress and depression are risk factors for suicidal ideation in young adults, particularly women attending college. Female undergraduate students (N = 928) were administered measures assessing their levels of stress, depressive symptoms, suicidal thoughts, and mindfulness. A moderated-mediation analysis was conducted to examine the complex associations among these variables. Results indicated that mindfulness moderated the mediated effect of depressive symptoms on perceived stress and suicidal ideation. Specifically, the indirect effect was stronger in college women with lower levels of mindfulness as compared to those students who reported higher mindfulness. Thus, teaching mindfulness techniques on college campuses may be an important strategy for preventing suicide, especially among young adult women experiencing stress and depressive symptoms.

  12. Using GeoGebra for Mathematics Education at University Undergraduate Level

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    Our research effort presented in this talk relates with developing digital tools for mathematics education at undergraduate university level. It focuses specifically on studies where mathematics is not a core subject but it is very important in order to cope with core subjects. For our design, we...... feedback inspire the next round of design requirements for the development of digital tools that support mathematics teaching and learning at university level....... conducted observations of teachers and students during lectures and exercise time. During these observations we were able to investigate how the applets were used in practice but also to get insight in the challenges that the students face during mathematics learning. These findings together with student...

  13. Effect of year of study on stress levels in male undergraduate dental students

    Directory of Open Access Journals (Sweden)

    Alzahem AM

    2013-10-01

    Full Text Available Abdullah M Alzahem,1 Henk T van der Molen,2 Benjamin J de Boer31Advanced Education in General Dentistry (AEGD Residency Program, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences/National Guard Health Affairs, Riyadh, Saudi Arabia; 2Institute of Psychology, Faculty of Social Sciences, Erasmus University, Rotterdam, The Netherlands; 3Clinical Psychology, Princess Nora University, Riyadh, Saudi ArabiaObjective: Stress among dental students can be a significant threat, resulting in physical and/or mental illness, and have a negative effect on students' performance and the professional practice of dentistry. Stress can occur from different sources. The purpose of this study is to test whether the year of study has an effect on the stress levels of dental students.Method: Our study consisted of a cross-sectional survey using a modified version of the Dental Environment Stress (DES questionnaire. The questionnaires were filled out by male undergraduate dental students at King Saud University in Riyadh City during the 2010–2011 academic year (n = 214.Results: The results show the most common sources of stress: examinations and completing clinical requirements. Moreover, in the five-year lecture-based traditional curriculum, the third year students reported the highest level of stress, whereas the first year reported the lowest level of stress.Conclusion: Third year undergraduate dental students reported the highest level of stress. This stress could be reduced by reviewing and modifying the dental curriculum by allowing students to have contact with patients more gradually, starting from the first year, in addition to adding stress prevention and intervention programs in dental curricula.Keywords: dental, education, students, stress, study year

  14. Undergraduate nursing students' level of assertiveness in Greece: a questionnaire survey.

    Science.gov (United States)

    Deltsidou, Anna

    2009-09-01

    A number of studies of nursing and midwifery have found stress and bullying to be frequent problems. Those suffering from bullying and stress need to have high levels of assertiveness to resist and to cope successfully. Hence, it was considered vital to assess the assertiveness level of nursing students throughout their training curriculum. The study population was composed of nursing students in different semesters at one school in Central Greece (n=298) who agreed to complete a questionnaire on assertiveness level assessment, which had been translated into Greek and adapted to this population. All students present in class completed the questionnaire, representing 80% of the total population of active students. Mean assertiveness scores between semesters were compared by ANOVA and comparisons between the responses of the first semester students and responses of advanced semester students were done by Pearson's chi square. The main finding of this study was that the assertiveness levels displayed by students increase slightly in advanced semesters by comparison to those displayed by first-semester students. Assertive behavior should be encouraged through learning methods. Nurses should preferably obtain this training throughout their studies. Instructors have an essential role in the improvement and achievement of assertiveness training curriculums for undergraduate nursing students.

  15. Supporting Upper-Level Undergraduate Students in Building a Systems Perspective in a Botany Course

    Science.gov (United States)

    Zangori, Laura; Koontz, Jason A.

    2017-01-01

    Undergraduate biology majors require biological literacy about the critical and dynamic relationships between plants and ecosystems and the effect human-made processes have on these systems. To support students in understanding systems relationships, we redesigned an undergraduate botany course using an ecological framework and embedded systems…

  16. An investigation of communication patterns and strategies between international teaching assistants and undergraduate students in university-level science labs

    Science.gov (United States)

    Gourlay, Barbara Elas

    This research project investigates communication between international teaching assistants and their undergraduate students in university-level chemistry labs. During the fall semester, introductory-level chemistry lab sections of three experienced non-native speaking teaching assistants and their undergraduate students were observed. Digital audio and video recordings documented fifteen hours of lab communication, focusing on the activities and interactions in the first hour of the chemistry laboratory sessions. In follow-up one-on-one semi-structured interviews, the participants (undergraduates, teaching assistants, and faculty member) reviewed interactions and responded to a 10-item, 7-point Likert-scaled interview. Interactions were classified into success categories based on participants' opinions. Quantitative and qualitative data from the observations and interviews guided the analysis of the laboratory interactions, which examined patterns of conversational listening. Analysis of laboratory communication reveals that undergraduates initiated nearly two-thirds of laboratory communication, with three-fourths of interactions less than 30 seconds in duration. Issues of gender and topics of interaction activity were also explored. Interview data identified that successful undergraduate-teaching assistant communication in interactive science labs depends on teaching assistant listening comprehension skills to interpret and respond successfully to undergraduate questions. Successful communication in the chemistry lab depended on the coordination of visual and verbal sources of information. Teaching assistant responses that included explanations and elaborations were also seen as positive features in the communicative exchanges. Interaction analysis focusing on the listening comprehension demands placed on international teaching assistants revealed that undergraduate-initiated questions often employ deixis (exophoric reference), requiring teaching assistants to

  17. Engineering Undergraduates' Views of A-Level Mathematics and Further Mathematics as Preparation for Their Degree

    Science.gov (United States)

    Darlington, Ellie; Bowyer, Jessica

    2017-01-01

    An ongoing reform programme of the post-16 Advanced "A"-level qualifications in England and Wales means that pre-university mathematics content and assessment will change from 2017. Undergraduate engineering is a subject that relies heavily on mathematics, and applicants to engineering degree programmes in the UK are required to have…

  18. Social Connectedness and Life Satisfaction: Comparing Mean Levels for 2 Undergraduate Samples and Testing for Improvement Based on Brief Counseling

    Science.gov (United States)

    Blau, Gary; DiMino, John; DeMaria, Peter A.; Beverly, Clyde; Chessler, Marcy; Drennan, Rob

    2016-01-01

    Objectives: Comparing the mean levels of social connectedness and life satisfaction, and analyzing their relationship for 2 undergraduate samples, and testing for an increase in their means for a brief counseling sample. Participants: Between October 2013 and May 2015, 3 samples were collected: not-in-counseling (NIC; n = 941), initial counseling…

  19. Undergraduate Leadership Students' Self-Perceived Level of Moral Imagination: An Innovative Foundation for Morality-Based Leadership Curricula

    Science.gov (United States)

    Odom, Summer F.; Andenoro, Anthony C.; Sandlin, M'Randa R.; Jones, Jaron L.

    2015-01-01

    Leadership educators are faced with the challenge of preparing students to serve organizations and people in dynamic and ever changing contexts. The purpose of this study was to examine undergraduate leadership students' self-perceived level of moral imagination to make recommendations for moral imagination curricula. Moral imagination is the…

  20. Integrating Research-Informed Teaching within an Undergraduate Level 4 (Year 1) Diagnostic Radiography Curriculum: A Pilot Study

    Science.gov (United States)

    Higgins, Robert; Hogg, Peter; Robinson, Leslie

    2013-01-01

    This article discusses the piloting and evaluation of the Research-informed Teaching experience (RiTe) project. The aim of RiTe was to link teaching and learning with research within an undergraduate diagnostic radiography curriculum. A preliminary pilot study of RiTe was undertaken with a group of level 4 (year 1) volunteer BSc (Hons) diagnostic…

  1. Transforming Passive Receptivity of Knowledge into Deep Learning Experiences at the Undergraduate Level: An Example from Music Theory

    Science.gov (United States)

    Ferenc, Anna

    2015-01-01

    This article discusses transformation of passive knowledge receptivity into experiences of deep learning in a lecture-based music theory course at the second-year undergraduate level through implementation of collaborative projects that evoke natural critical learning environments. It presents an example of such a project, addresses key features…

  2. Pre and Post Test Evaluations of Students in the Needs-Analysis Based EAP Course at Undergraduate Level

    Science.gov (United States)

    Nafissi, Zohreh; Rezaeipanah, Fariba; Monsefi, Roya

    2017-01-01

    Iran's education system is exam-based and to gain admission to universities at undergraduate, graduate, and postgraduate levels, candidates have to sit a competitive examination. For this reason, developing an EAP course which prepares the candidates for these examinations is of crucial importance. The present study attempted to develop an EAP…

  3. Cross-Age Mentoring to Support A-Level Pupils' Transition into Higher Education and Undergraduate Students' Employability

    Science.gov (United States)

    James, Alana I.

    2014-01-01

    Two challenges identified for psychology higher education are supporting entry students' transition, and supporting graduates' transition into employment. The evaluation of the first phase of a cross-age mentoring action research project targeting these issues is presented; eight psychology undergraduates mentored 20 A-level psychology pupils in…

  4. Evidence of The Importance of Philosophy of Science Course On Undergraduate Level

    Science.gov (United States)

    Suyono

    2018-01-01

    This study aimed to describe academic impact of Philosophy of Science course in change of students’ conceptions on the Nature of science (NOS) before and after attending the course. This study followed one group pretest-posttest design. Treatment in this study was Philosophy of Science course for one semester. Misconception diagnostic tests of the NOS had been developed by Suyono et al. (2015) equipped with Certainty of Response Index (CRI). It consists of 15 concept questions about the NOS. The number of students who were tested on Chemistry Education Program (CEP) and Chemistry Program (CP) respectively 42 and 45 students. This study shows that after the learning of Philosophy of Science course happened: (1) the decrease of the number of misconception students on the NOS from 47.47 to 19.20% in CEP and from 47.47 to 18.18% in CP and (2) the decrease in the number of concepts that understood as misconception by the large number of students from 11 to 2 concepts on the CEP and from 10 to 2 concepts on CP. Therefore, the existence of Philosophy of Science course has a positive academic impact on students from both programs on undergraduate level.

  5. Skills in clinical communication: Are we correctly assessing them at undergraduate level?

    Directory of Open Access Journals (Sweden)

    Alberto Zamora Cervantes

    2014-07-01

    Full Text Available Communicating with the patient in clinical practice refers to the way in which the doctor and the patient interact both verbally and nonverbally, in order to achieve a shared understanding of problems and solutions. Traditional learning and assessment systems are overwhelmed when it comes to addressing the complex and multi-dimensional problems of professional practice. Problem Based Learning (PBL has been put forward as an alternative to the mere reproduction of knowledge and pre-established patterns, enabling students to develop their own learning strategies to overcome problems in their future professional practice. The challenge is to determine how to assess the acquisition of clinical communication skills. The authors have recommended a summative assessment of clinical communication skills based on the combination of different methods. It highlights the importance of feedback-based formative assessment. This raises the need to develop and validate assessment scales in clinical communication at an undergraduate level. Based on this work, the authors put forward a "fanned out" assessment in terms of clinical communication skills in Medicine degrees, with the use of different instruments in a "spiraled" manner, where the greater the contact with clinical practice in the various degree and integral courses, the greater difficulty experienced, with the participation of all the stakeholders involved (self, hetero and peer assessment without precluding the involvement of patients (real or simulated in the design of assessment instruments.

  6. Nanocompósitos de epóxi/nanotubos de carbono/argilas

    OpenAIRE

    Sene, Tarcísio Sanson

    2012-01-01

    Nanotubos de carbono dispersos em matrizes poliméricas podem proporcionar interessantes alterações em propriedades mecânicas e de condutividade elétrica no material nanocompósito resultante. Trabalhos atuais demonstram um possível efeito de dispersão de nanotubos de carbono (NTC) assistida pela dispersão simultânea com argila montmorilonita natural em uma matriz epoxídica, de modo que incrementos de argila proporcionariam melhor dispersão dos NTC na matriz, elevando a condutividade elétrica q...

  7. Cross-age mentoring to support A-level pupils’ transition into Higher Education and undergraduate students’ employability

    OpenAIRE

    James, Alana I.

    2014-01-01

    Two challenges identified for psychology higher education are supporting entry students’ transition, and supporting graduates’ transition into employment. The evaluation of the first phase of a cross-age mentoring action research project targeting these issues is presented; eight psychology undergraduates mentored 20 A-level psychology pupils in two schools. Mentors showed significant increases in two of nine psychological literacies, in self-efficacy but not self-esteem, were highly satisfie...

  8. Argila natural aplicada à clarificação de óleo lubrificante automotivo usado

    Directory of Open Access Journals (Sweden)

    A. E. A. de Lima

    Full Text Available Resumo Argilas para o processo de clarificação são largamente utilizadas na indústria de rerrefino de óleos lubrificantes usados, principalmente por sua capacidade adsorvente de reter impurezas. O presente estudo teve objetivo de determinar as condições ótimas do processo de clarificação de lubrificantes usados a partir de argilas naturais e realizar a recuperação de tais argilas. O processo de rerrefino do lubrificante usado foi otimizado a partir de um planejamento experimental. As argilas recuperadas não apresentaram mudanças significativas em suas estruturas originais, de acordo com as técnicas de difração de raios X, espectroscopia no infravermelho e análise termogravimétrica. Os resultados das caracterizações dos lubrificantes atenderam a portaria ANP nº 130, que regulamenta sua comercialização no país. Todos os solventes foram recuperados por destilação a vácuo.

  9. Mathematics Undergraduates' Responses to Semantic Abbreviations, 'Geometric' Images and Multi-Level Abstractions in Group Theory.

    Science.gov (United States)

    Nardi, Elena

    2000-01-01

    Identifies and explores the difficulties in the novice mathematician's encounter with mathematical abstraction. Observes 20 first-year mathematics undergraduates and extracts sets of episodes from the transcripts of the tutorials and interviews within five topics in pure mathematics. Discusses issues related to the learning of one mathematical…

  10. Integrating Hands-On Undergraduate Research in an Applied Spatial Science Senior Level Capstone Course

    Science.gov (United States)

    Kulhavy, David L.; Unger, Daniel R.; Hung, I-Kuai; Douglass, David

    2015-01-01

    A senior within a spatial science Ecological Planning capstone course designed an undergraduate research project to increase his spatial science expertise and to assess the hands-on instruction methodology employed within the Bachelor of Science in Spatial Science program at Stephen F Austin State University. The height of 30 building features…

  11. Cyclic Voltammetry Simulations with DigiSim Software: An Upper-Level Undergraduate Experiment

    Science.gov (United States)

    Messersmith, Stephania J.

    2014-01-01

    An upper-division undergraduate chemistry experiment is described which utilizes DigiSim software to simulate cyclic voltammetry (CV). Four mechanisms were studied: a reversible electron transfer with no subsequent or proceeding chemical reactions, a reversible electron transfer followed by a reversible chemical reaction, a reversible chemical…

  12. Exploring Factors Related to Completion of an Online Undergraduate-Level Introductory Statistics Course

    Science.gov (United States)

    Zimmerman, Whitney Alicia; Johnson, Glenn

    2017-01-01

    Data were collected from 353 online undergraduate introductory statistics students at the beginning of a semester using the Goals and Outcomes Associated with Learning Statistics (GOALS) instrument and an abbreviated form of the Statistics Anxiety Rating Scale (STARS). Data included a survey of expected grade, expected time commitment, and the…

  13. Examining Student Ideas about Energy Measurements on Quantum States across Undergraduate and Graduate Levels

    Science.gov (United States)

    Passante, Gina; Emigh, Paul J.; Shaffer, Peter S.

    2015-01-01

    Energy measurements play a fundamental role in the theory of quantum mechanics, yet there is evidence that the underlying concepts are difficult for many students, even after all undergraduate instruction. We present results from an investigation into student ability to determine the possible energies that can be measured for a given wave function…

  14. Green Chemistry Decision-Making in an Upper-Level Undergraduate Organic Laboratory

    Science.gov (United States)

    Edgar, Landon J. G.; Koroluk, Katherine J.; Golmakani, Mehrnaz; Dicks, Andrew P.

    2014-01-01

    A self-directed independent synthesis experiment was developed for a third-year undergraduate organic laboratory. Students were provided with the CAS numbers of starting and target compounds and devised a synthetic plan to be executed over two 4.5 h laboratory periods. They consulted the primary literature in order to develop and carry out an…

  15. Biotechnology by Design: An Introductory Level, Project-Based, Synthetic Biology Laboratory Program for Undergraduate Students†

    OpenAIRE

    Beach, Dale L.; Alvarez, Consuelo J.

    2015-01-01

    Synthetic biology offers an ideal opportunity to promote undergraduate laboratory courses with research-style projects, immersing students in an inquiry-based program that enhances the experience of the scientific process. We designed a semester-long, project-based laboratory curriculum using synthetic biology principles to develop a novel sensory device. Students develop subject matter knowledge of molecular genetics and practical skills relevant to molecular biology, recombinant DNA techniq...

  16. Incorporating Inquiry into Upper-Level Undergraduate Homework Assignments: The Mini-Journal

    Science.gov (United States)

    Whittington, Alan; Speck, Angela; Witzig, Stephen; Abell, Sandra

    2010-05-01

    The US National Science Education Standards (2000) state that science should be taught through inquiry. The five essential features of classroom inquiry are that the leaner (i) engages in scientifically oriented questions, (ii) gives priority to evidence in responding to questions, (iii) formulates explanations from evidence, (iv) connects explanations to scientific knowledge, and (v) communicates and justifies explanations. One difficulty in achieving this vision at the university level lies in the common perception that inquiry be fully open and unstructured, and that its implementation will be impractical due to time and material constraints. In an NSF-funded project, "CUES: Connecting Undergraduates to the Enterprise of Science," faculty developed new inquiry-based laboratory curriculum materials using a "mini-journal" approach, which is designed as an alternative to the cookbook laboratory and represents the way that scientists do science. Here we adapt this approach to a homework assignment in an upper-level Planetary Science class, and show that inquiry is achievable in this setting. Traditional homeworks in this class consisted of problem sets requiring algebraic manipulation, computation, and in most cases an appraisal of the result Longer questions are broken down into chunks worth 1 to 4 points. In contrast, the mini-journal is a short article that is modeled in the way that scientists do and report science. It includes a title, abstract, introduction (with clear statement of the problem to be tackled), a description of the methods, results (presented as both tables and graphs), a discussion (with suggestions for future work) and a list of cited work. Students devise their research questions and hypothesis from the paper based on a logical next step in the investigation. Guiding questions in the discussion can assist the students ("it would be interesting to evaluate the effect of ..."). Students submit their own minijournal, using the same journal

  17. The teaching of temporomandibular disorders and orofacial pain at undergraduate level in Brazilian dental schools

    Directory of Open Access Journals (Sweden)

    Wagner SIMM

    2013-12-01

    Full Text Available Objectives: Evaluate the way the topics for the study of pain mechanisms in general, and Orofacial Pain (OFP and temporomandibular disorders (TMDs more specifically, are addressed in undergraduate courses curricula, and also to verify the existence of specialist OFP/TMD teachers in Brazilian dental schools. Methods: Between July 2010 and January 2011, course Coordinators/Directors of all dental schools duly registered at the Ministry of Education were invited to answer a questionnaire on topics related to OFP/TMD teaching in their institutions. Results: Fifty-three dental schools representatives answered the questionnaire. The study of pain mechanisms was found to cover an average of less than 10% of the courses' total time. Pharmacology, Endodontics and Physiology were identified as the departments usually responsible for addressing pain mechanisms in dental courses. Psychosocial aspects were found to occupy a very small proportion in the syllabi, while most of the content referred to biological or somatic aspects. OFP/TMD is addressed by a specific department in only 28.4% of the participating dental schools, while in most cases (46.3%, OFP/TMD is under the responsibility of the Prosthodontics department. Only 38.5% of respondents indicated that they had a specialist OFP/TMD teacher in their Schools. Conclusion: Among the Brazilian dental schools participating in the study, the teaching of OFP/TMD was found to be insufficient, segmented or with an extremely restricted focus. This initial assessment indicates that Curricular Guidelines for the study of OFP/TMD at undergraduate dental schools should be developed and implemented to facilitate their appropriate inclusion into the curricula and in specific pedagogical projects.

  18. Level of Need for Cognition and Metacognitive Thinking among Undergraduate Kindergarten Female Students at King Sa'ud University in Sa'udi Arabia

    Science.gov (United States)

    Daghistani, Bulquees

    2015-01-01

    This study aims at examining the level of need for cognition and metacognitive thinking among undergraduate kindergarten female students in Education Faculty at King Sa'ud University in Sa'udi Arabia from their own perceptions. Results showed that the need for the cognition level was moderate, but metacognitive thinking level was high. In…

  19. Biotechnology by Design: An Introductory Level, Project-Based, Synthetic Biology Laboratory Program for Undergraduate Students.

    Science.gov (United States)

    Beach, Dale L; Alvarez, Consuelo J

    2015-12-01

    Synthetic biology offers an ideal opportunity to promote undergraduate laboratory courses with research-style projects, immersing students in an inquiry-based program that enhances the experience of the scientific process. We designed a semester-long, project-based laboratory curriculum using synthetic biology principles to develop a novel sensory device. Students develop subject matter knowledge of molecular genetics and practical skills relevant to molecular biology, recombinant DNA techniques, and information literacy. During the spring semesters of 2014 and 2015, the Synthetic Biology Laboratory Project was delivered to sophomore genetics courses. Using a cloning strategy based on standardized BioBrick genetic "parts," students construct a "reporter plasmid" expressing a reporter gene (GFP) controlled by a hybrid promoter regulated by the lac-repressor protein (lacI). In combination with a "sensor plasmid," the production of the reporter phenotype is inhibited in the presence of a target environmental agent, arabinose. When arabinose is absent, constitutive GFP expression makes cells glow green. But the presence of arabinose activates a second promoter (pBAD) to produce a lac-repressor protein that will inhibit GFP production. Student learning was assessed relative to five learning objectives, using a student survey administered at the beginning (pre-survey) and end (post-survey) of the course, and an additional 15 open-ended questions from five graded Progress Report assignments collected throughout the course. Students demonstrated significant learning gains (p Biology Laboratory Project enhanced their understanding of molecular genetics. The laboratory project is highly adaptable for both introductory and advanced courses.

  20. An Analysis of Undergraduate General Chemistry Students' Misconceptions of the Submicroscopic Level of Precipitation Reactions

    Science.gov (United States)

    Kelly, Resa M.; Barrera, Juliet H.; Mohamed, Saheed C.

    2010-01-01

    This study examined how 21 college-level general chemistry students, who had received instruction that emphasized the symbolic level of ionic equations, explained their submicroscopic-level understanding of precipitation reactions. Students' explanations expressed through drawings and semistructured interviews revealed the nature of the…

  1. SU-E-E-07: An Adaptable Approach for Education On Medical Physics at Undergraduate and Postgraduate Levels

    International Nuclear Information System (INIS)

    Miller-Clemente, R; Mendez-Perez, L

    2015-01-01

    Purpose: To contribute to the professional profile of future medical physicists, technologists and physicians, and implement an adaptable educational strategy at both undergraduate and postgraduate levels. Methods: The Medical Physics Block of Electives (MPBE) designed was adapted to the Program of B.S. in Physics. The conferences and practical activities were developed with participatory methods, with interdisciplinary collaboration from research institutions and hospitals engaged on projects of Research, Development and Innovation (RDI). The scientific education was implemented by means of critical analysis of scientific papers and seminars where students debated on solutions for real research problems faced by medical physicists. This approach included courses for graduates not associated to educational programs of Medical Physics (MP). Results: The implementation of the MPBE began in September 2014, with the electives of Radiation MP and Introduction to Nuclear Magnetic Resonance. The students of second year received an Introduction to MP. This initiative was validated by the departmental Methodological Workshop, which promoted the full implementation of the MPBE. Both postgraduated and undergraduate trainees participated in practices with our DICOM viewer system, a local prototype for photoplethysmography and a home-made interface for ROC analysis, built with MATLAB. All these tools were designed and constructed in previous RDI projects. The collaborative supervision of University’s researchers with clinical medical physicists will allow to overcome the limitations of residency in hospitals, to reduce the workload for clinical supervisors and develop appropriate educational activities. Conclusion: We demonstrated the feasibility of adaptable educational strategies, considering available resources. This provides an innovative way for prospective medical physicists, technologists and radiation oncologists. This strategy can be implemented in several regions

  2. SU-E-E-07: An Adaptable Approach for Education On Medical Physics at Undergraduate and Postgraduate Levels

    Energy Technology Data Exchange (ETDEWEB)

    Miller-Clemente, R [Centro de Biofisica Medica, Santiago De Cuba, Santiago de Cuba (Cuba); Universidad de Oriente, Santiago De Cuba, Santiago de Cuba (Cuba); Mendez-Perez, L [Universidad de Oriente, Santiago De Cuba, Santiago de Cuba (Cuba)

    2015-06-15

    Purpose: To contribute to the professional profile of future medical physicists, technologists and physicians, and implement an adaptable educational strategy at both undergraduate and postgraduate levels. Methods: The Medical Physics Block of Electives (MPBE) designed was adapted to the Program of B.S. in Physics. The conferences and practical activities were developed with participatory methods, with interdisciplinary collaboration from research institutions and hospitals engaged on projects of Research, Development and Innovation (RDI). The scientific education was implemented by means of critical analysis of scientific papers and seminars where students debated on solutions for real research problems faced by medical physicists. This approach included courses for graduates not associated to educational programs of Medical Physics (MP). Results: The implementation of the MPBE began in September 2014, with the electives of Radiation MP and Introduction to Nuclear Magnetic Resonance. The students of second year received an Introduction to MP. This initiative was validated by the departmental Methodological Workshop, which promoted the full implementation of the MPBE. Both postgraduated and undergraduate trainees participated in practices with our DICOM viewer system, a local prototype for photoplethysmography and a home-made interface for ROC analysis, built with MATLAB. All these tools were designed and constructed in previous RDI projects. The collaborative supervision of University’s researchers with clinical medical physicists will allow to overcome the limitations of residency in hospitals, to reduce the workload for clinical supervisors and develop appropriate educational activities. Conclusion: We demonstrated the feasibility of adaptable educational strategies, considering available resources. This provides an innovative way for prospective medical physicists, technologists and radiation oncologists. This strategy can be implemented in several regions

  3. Just the facts? Introductory undergraduate biology courses focus on low-level cognitive skills.

    Science.gov (United States)

    Momsen, Jennifer L; Long, Tammy M; Wyse, Sara A; Ebert-May, Diane

    2010-01-01

    Introductory biology courses are widely criticized for overemphasizing details and rote memorization of facts. Data to support such claims, however, are surprisingly scarce. We sought to determine whether this claim was evidence-based. To do so we quantified the cognitive level of learning targeted by faculty in introductory-level biology courses. We used Bloom's Taxonomy of Educational Objectives to assign cognitive learning levels to course goals as articulated on syllabi and individual items on high-stakes assessments (i.e., exams and quizzes). Our investigation revealed the following: 1) assessment items overwhelmingly targeted lower cognitive levels, 2) the cognitive level of articulated course goals was not predictive of the cognitive level of assessment items, and 3) there was no influence of course size or institution type on the cognitive levels of assessments. These results support the claim that introductory biology courses emphasize facts more than higher-order thinking.

  4. Just the Facts? Introductory Undergraduate Biology Courses Focus on Low-Level Cognitive Skills

    Science.gov (United States)

    Momsen, Jennifer L.; Long, Tammy M.; Wyse, Sara A.; Ebert-May, Diane

    2010-01-01

    Introductory biology courses are widely criticized for overemphasizing details and rote memorization of facts. Data to support such claims, however, are surprisingly scarce. We sought to determine whether this claim was evidence-based. To do so we quantified the cognitive level of learning targeted by faculty in introductory-level biology courses.…

  5. How does undergraduate college biology students' level of understanding, in regard to the role of the seed plant root system, relate to their level of understanding of photosynthesis?

    Science.gov (United States)

    Njeng'ere, James Gicheha

    This research study investigated how undergraduate college biology students' level of understanding of the role of the seed plant root system relates to their level of understanding of photosynthesis. This research was conducted with 65 undergraduate non-majors biology who had completed 1 year of biology at Louisiana State University in Baton Rouge and Southeastern Louisiana University in Hammond. A root probe instrument was developed from some scientifically acceptable propositional statements about the root system, the process of photosynthesis, as well as the holistic nature of the tree. These were derived from research reviews of the science education and the arboriculture literature. This was administered to 65 students selected randomly from class lists of the two institutions. Most of the root probe's items were based on the Live Oak tree. An in-depth, clinical interview-based analysis was conducted with 12 of those tested students. A team of root experts participated by designing, validating and answering the same questions that the students were asked. A "systems" lens as defined by a team of college instructors, root experts (Shigo, 1991), and this researcher was used to interpret the results. A correlational coefficient determining students' level of understanding of the root system and their level of understanding of the process of photosynthesis was established by means of Pearson's r correlation (r = 0.328) using the SAS statistical analysis (SAS, 1987). From this a coefficient of determination (r2 = 0.104) was determined. Students' level of understanding of the Live Oak root system (mean score 5.94) was not statistically different from their level of understanding of the process of photosynthesis (mean score 5.54) as assessed by the root probe, t (129) = 0.137, p > 0.05 one tailed-test. This suggests that, to some degree, level of the root system limits level of understanding of photosynthesis and vice versa. Analysis of quantitative and qualitative

  6. Propriedades mecânicas e reológicas de nanocompósitos de poliamida 6 com argila organofílica nacional

    Directory of Open Access Journals (Sweden)

    Renê Anisio da Paz

    2013-01-01

    Full Text Available Nanocompósitos de poliamida 6 com argila organofílica foram preparados pelo método de intercalação no estado fundido. Foram estudadas as propriedades reológicas e mecânicas de nanocompósitos com argila nacional. A argila utilizada foi tratada com o sal quaternário de amônio (Cetremide e foi caracterizada por Espectroscopia no Infravermelho (FTIR e difração de raios X (DRX. Os resultados evidenciaram a incorporação do sal na argila e sua organofilização. Para a obtenção dos nanocompósitos, foram preparados concentrados de PA6/argila (1:1 em (m/m e estes foram adicionados na poliamida 6, em quantidade de 3% de argila no composto final, utilizando uma extrusora de rosca dupla corrotacional. Posteriormente, as amostras foram moldadas por injeção e caracterizadas por: reometria capilar, DRX, MET e ensaios mecânicos (tração e impacto. Os resultados de reometria capilar mostraram que a presença da argila organofílica na PA6 aumentou a viscosidade dos sistemas. Por DRX e MET, foi verificado que todos os sistemas apresentaram predominância de estrutura esfoliada. As propriedades mecânicas sob tração foram melhores do que as da poliamida 6.

  7. CARACTERIZAÇÃO MINERALÓGICA DE ARGILAS BENTONÍTICAS

    OpenAIRE

    ELENICE HASS CAETANO

    2015-01-01

    Argilas são materiais naturais, terrosos, considerados finos grãos que contém partículas com diâmetro inferior a 2 μm e, quando umedecidos com água, apresentam plasticidade. São constituídas essencialmente por argilominerais (filossilicatos) e por matéria orgânica, sais solúveis, minerais como calcita, pirita, gibsita, quartzo entre outras impurezas. Bentonita, conhecida como o argilomineral mais abundante do grupo da esmectita, pertence ao grupo dos filossilicatos 2:1, sua estrutura cri...

  8. Reformulation of Engineering Education at Undergraduate Level in the Faculdad de Ingenieria y Ciencias Hidricas Universidad Nacional del Litoral--Water Resources and Engineering Degrees.

    Science.gov (United States)

    Theiler, Julio; Isla, Miguel; Arrillaga, Hugo; Ceirano, Eduardo; Lozeco, Cristobal

    This paper explains the educational changes in the Water Resources Engineering program offered by the Universidad Nacional del Litoral in Santa Fe, Argentina, for the last 20 years at the undergraduate level. The need for modernizing the engineering teaching program occurred due to changes in the social system in which the concepts of development…

  9. A Western Blot-based Investigation of the Yeast Secretory Pathway Designed for an Intermediate-Level Undergraduate Cell Biology Laboratory

    Science.gov (United States)

    Hood-DeGrenier, Jennifer K.

    2008-01-01

    The movement of newly synthesized proteins through the endomembrane system of eukaryotic cells, often referred to generally as the secretory pathway, is a topic covered in most intermediate-level undergraduate cell biology courses. An article previously published in this journal described a laboratory exercise in which yeast mutants defective in…

  10. Synthesizing and Characterizing Graphene via Raman Spectroscopy: An Upper-Level Undergraduate Experiment That Exposes Students to Raman Spectroscopy and a 2D Nanomaterial

    Science.gov (United States)

    Parobek, David; Shenoy, Ganesh; Zhou, Feng; Peng, Zhenbo; Ward, Michelle; Liu, Haitao

    2016-01-01

    In this upper-level undergraduate experiment, students utilize micro-Raman spectroscopy to characterize graphene prepared by mechanical exfoliation and chemical vapor deposition (CVD). The mechanically exfoliated samples are prepared by the students while CVD graphene can be purchased or obtained through outside sources. Owing to the intense Raman…

  11. Gender Rationales in Selecting a Major in Information Technology at the Undergraduate Level of a University Program: A Focus Group Approach

    Science.gov (United States)

    Mishra, Sushma; Draus, Peter; Caputo, Donald; Leone, Gregory; Kohun, Frederick; Repack, Diana

    2014-01-01

    Previous research studies of women applying to, enrolling and completing computing degrees at the undergraduate collegiate level suggest a significant underrepresentation of females in the Information Technology domain in the past decade. This study employs a focus group approach to the gender gap that encompasses forays into the qualitative…

  12. Transforming Spatial Reasoning Skills in the Upper-Level Undergraduate Geoscience Classroom Through Curricular Materials Informed by Cognitive Science Research

    Science.gov (United States)

    Ormand, C. J.; Shipley, T. F.; Dutrow, B. L.; Goodwin, L. B.; Hickson, T. A.; Tikoff, B.; Atit, K.; Gagnier, K. M.; Resnick, I.

    2014-12-01

    Spatial visualization is an essential skill in the STEM disciplines, including the geosciences. Undergraduate students, including geoscience majors in upper-level courses, bring a wide range of spatial skill levels to the classroom. Students with weak spatial skills may be unable to understand fundamental concepts and to solve geological problems with a spatial component. However, spatial thinking skills are malleable. As a group of geoscience faculty members and cognitive psychologists, we have developed a set of curricular materials for Mineralogy, Sedimentology & Stratigraphy, and Structural Geology courses. These materials are designed to improve students' spatial skills, and in particular to improve students' abilities to reason about spatially complex 3D geological concepts and problems. Teaching spatial thinking in the context of discipline-based exercises has the potential to transform undergraduate STEM education by removing one significant barrier to success in the STEM disciplines. The curricular materials we have developed are based on several promising teaching strategies that have emerged from cognitive science research on spatial thinking. These strategies include predictive sketching, making visual comparisons, gesturing, and the use of analogy. We have conducted a three-year study of the efficacy of these materials in strengthening the spatial skills of students in upper-level geoscience courses at three universities. Our methodology relies on a pre- and post-test study design, with several tests of spatial thinking skills administered at the beginning and end of each semester. In 2011-2012, we used a "business as usual" approach to gather baseline data, measuring how much students' spatial thinking skills improved in response to the existing curricula. In the two subsequent years we have incorporated our new curricular materials, which can be found on the project website: http://serc.carleton.edu/spatialworkbook/activities.html Structural Geology

  13. Motivation Levels among Traditional and Open Learning Undergraduate Students in India

    Directory of Open Access Journals (Sweden)

    Shashi Singh

    2012-06-01

    Full Text Available Motivation plays a crucial role in learning. Motivation energizes the behavior of the individual. It also directs the behavior towards specific goals. It helps students acquire knowledge, develop social qualities, increase initiation, persist in activities, improve performance, and develop a sense of discipline. This paper aims to compare the levels of motivation between students in the open education system (OES and in the traditional education system (TES in India. The study further investigates the motivation levels of male and female students in the two systems. An Academic Motivation Scale (AMS was prepared and administered on the students of TES (n = 200 and OES (n = 151. Results show that there exist significant differences in the level of motivation between the students of TES and OES. The study concludes that it is the presence or absence of extrinsic motivation which is predominantly responsible for this difference.

  14. Desenvolvimento e caracterização de argilas organofílicas para uso em alimentação animal como adsorvente inativador de micotoxinas

    OpenAIRE

    Viotti, Glêdes Cabral de Albuquerque

    2006-01-01

    Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química. As argilas são utilizadas como matéria-prima para diversas aplicações na indústria. Nestes processos industriais as argilas mais procuradas são as bentonitas. As bentonitas são argilas amplamente encontradas na natureza e possuem propriedades tecnológicas bastante atraentes para o desenvolvimento de produtos para as mais variadas áreas. As propriedades tecnológica...

  15. 'We want to learn English to communicate' : Can this be motivation for elementary level Japanese undergraduates?

    OpenAIRE

    Anne, Swan; 平安女学院大学現代文化学部現代福祉学科; Heian Jogakuin (St. Agnes') College,

    2002-01-01

    Getting low-level students to speak up in class is an ongoing issue for foreign teachers in Japan. Having recognised the unwillingness of Japanese students to contribute to class discussions, the foreign teacher has to find ways of overcoming this reluctance. This paper explores some of the background knowledge which foreign teachers need to be aware of if they are to contribute successfully to their students' language learning. It looks at part of a typical lesson with a group of low-level f...

  16. Assessment of Burnout Levels among Working Undergraduate Nursing Students in Turkey: Being a Full Time Employee and Student

    Directory of Open Access Journals (Sweden)

    Zuhal Tugutlu

    2012-01-01

    Full Text Available Background: Burnout originates in social work environment which causes numerous health problems in people.Objective: The purpose of this research was to determine the burnout levels of working undergraduate students who actually work as health care staff at hospitals and attending full time education in School of Health in North West region of Turkey.Results: More than half of the students (56.6 % were satisfied by working and studying at the same time. Majority of the students (84.8 % reported that they like their profession. We found that, years in profession and income levels did not affect emotional exhaustion (p>0.05, whilst having negative feelings about professionincreased emotional exhaustion among working students (p<0.01.Conclusion: Being a student and working at the same time as health care staff is a cause of burnout among students. Adding assertiveness, positive thinking, development of self-control to nursing curricula may help overwhelmed and burnout students to get along with problems they face.

  17. Integrative assessment of Evolutionary theory acceptance and knowledge levels of Biology undergraduate students from a Brazilian university

    Science.gov (United States)

    Tavares, Gustavo Medina; Bobrowski, Vera Lucia

    2018-03-01

    The integrative role that Evolutionary theory plays within Biology is recognised by most scientific authors, as well as in governmental education policies, including Brazilian policies. However, teaching and learning evolution seems problematic in many countries, and Brazil is among those. Many factors may affect teachers' and students' perceptions towards evolution, and studies can help to reveal those factors. We used a conceptual questionnaire, the Measure of Acceptance of the Theory of Evolution (MATE) instrument, and a Knowledge test to assess (1) the level of acceptance and understanding of 23 undergraduate Biology students nearing the end of their course, (2) other factors that could affect these levels, including course structure, and (3) the most difficult topics regarding evolutionary biology. The results of this study showed that the students, on average, had a 'Very High Acceptance' (89.91) and a 'Very Low Knowledge' (59.42%) of Evolutionary theory, and also indicated a moderate positive correlation between the two (r = 0.66, p = .001). The most difficult topics were related to the definition of evolution and dating techniques. We believe that the present study provides evidence for policymakers to reformulate current school and university curricula in order to improve the teachers' acceptance and understanding of evolution and other biological concepts, consequently, helping students reduce their misconceptions related to evolutionary biology.

  18. Use of Practical Worksheet in Teacher Education at the Undergraduate and Postgraduate Levels

    Science.gov (United States)

    Toh, Pee Choon; Toh, Tin Lam; Ho, Foo Him; Quek, Khiok Seng

    2012-01-01

    We have applied the "practical paradigm" in teaching problem solving to secondary school students. The key feature of the practical paradigm is the use of a practical worksheet to guide the students' processes in problem solving. In this paper, we report the diffusion of the practical paradigm to university level courses for prospective…

  19. Contrasts in Mathematical Challenges in A-Level Mathematics and Further Mathematics, and Undergraduate Mathematics Examinations

    Science.gov (United States)

    Darlington, Ellie

    2014-01-01

    This article describes part of a study which investigated the role of questions in students' approaches to learning mathematics at the secondary-tertiary interface, focussing on the enculturation of students at the University of Oxford. Use of the Mathematical Assessment Task Hierarchy taxonomy revealed A-level Mathematics and Further Mathematics…

  20. Examination of Anxiety Levels and Anger Expression Manners of Undergraduate Table Tennis Players

    Science.gov (United States)

    Karademir, Tamer; Türkçapar, Ünal

    2016-01-01

    This research was done for the determination of how their anxiety levels' and anger expressions' get shaped according to some variances. For this reason there were 76 female 125 male totally 201 sportsmen, who participated to the table tennis championship between universities in 2016 and ages differ from 18 to 28, were included the research group.…

  1. To What Extent Does A-Level Physics Prepare Students for Undergraduate Laboratory Work?

    Science.gov (United States)

    Thompson, Alaric

    2012-01-01

    This paper is a summary of a small-scale research project carried out to investigate the transition from A-level to university physics, with a specific focus on practical or laboratory skills. A brief description of the methods used precedes the headline findings of the research. A non-evidential discussion of the possible reasons behind any…

  2. Exploring the Self-Reported ICT Skill Levels of Undergraduate Science Students

    Directory of Open Access Journals (Sweden)

    Jef C. Verhoeven

    2015-12-01

    Full Text Available Computers have taken an important place in the training of science students and in the professional life of scientists. It is often taken for granted that most students have mastered basic Information and Communication Technologies (ICT skills; however, it has been shown that not all students are equally proficient in this regard. Starting from theories of socialization and technology acceptance we report how we constructed a structural equation model (SEM to explore the variance in the basic ICT skill levels of science students. We also present the results of a test of this model with university bachelor’s science students. Basic ICT skills were measured using a new, elaborate instrument allowing students to rate their skills in detail. Our results show that science students score high on basic ICT skills and that our SEM explains a large part of the variation in the ICT skill levels of these students. The most explanatory power is coming from four variables: the perceived ease of use and the perceived usefulness of a personal computer, the anxiety for using a personal computer, and students’ belief that ICT is necessary for scientific research.

  3. Individual Supervision to Enhance Reflexivity and the Practice of Patient-Centered Care: Experience at the Undergraduate Level.

    Science.gov (United States)

    Berney, Alexandre; Bourquin, Céline

    2017-12-22

    This article reports on what is at work during individual supervision of medical students in the context of teaching breaking bad news (BBN). Surprisingly, there is a relative lack of research and report on the topic of supervision, even though it is regularly used in medical training. Building on our research and teaching experience on BBN at the undergraduate level, as well as interviews of supervisors, the following key elements have been identified: learning objectives (e.g., raising student awareness of structural elements of the interview, emotion (patients and students) handling), pedagogical approach (being centered on student's needs and supportive to promote already existing competences), essentials (e.g., discussing skills and examples from the clinical practice), and enhancing reflexivity while discussing specific issues (e.g., confusion between the needs of the patient and those of the student). Individual supervision has been identified as crucial and most satisfactory by students to provide guidance and to foster a reflexive stance enabling them to critically apprehend their communication style. Ultimately, the challenge is to teach medical students to not only connect with the patient but also with themselves.

  4. Journal Writing: A Means of Professional Development in ESL Classroom at Undergraduate Level

    Directory of Open Access Journals (Sweden)

    D. Samrajya Lakshmi

    2009-10-01

    Full Text Available The duty of the Teacher of English is not merely teaching English texts but he/she should help the students in enhancing various other skills like communicative, analytical, logical and soft skills. To compete with the growing demands on the English teachers, timely orientation towards professionalism is of dire importance. For over three decades now, it has been found that methodology, training and concept alone will not make a teacher competent enough to train the students at college level to meet the students’ requirements. In this fast changing global scenario, no other processes excepting reflective practice, which is highly exploratory is the best and could serve the ever growing needs of the English language learners and teachers by integrating both theory and practice. This paper focuses on the potential of journal writing as a reflective professional development tool, which is purely a personal low-tech way of incorporating reflective practice in day-to-day classroom teaching by individual teachers. My attempt through this paper is to advertise the use of journal writing not only to the experienced but also to the novice teacher to make his/her class effective.

  5. Efeito compatibilizante de uma argila organofílica na blenda PLA/terpolímero (etileno/acrilato de metila/metacrilato de glicidila

    Directory of Open Access Journals (Sweden)

    Gustavo F. Brito

    2013-01-01

    Full Text Available Neste trabalho, nanocompósitos obtidos a partir de blendas entre o poli (ácido lático e o terpolímero (etileno/acrilato de metila/metacrilato de glicidila foram confeccionados. A argila organofílica comercial Cloisite 20A foi utilizada como nanocarga. Interações entre a argila e o terpolímero foram investigadas por reometria de torque. As estruturas dos nanocompósitos foram determinadas por difração de raios X, sendo obtidos nanocompósitos intercalados e microcompósitos. A atuação da argila como agente compatibilizante foi evidenciada por fotomicrografias obtidas por microscopia eletrônica de varredura. As propriedades mecânicas das blendas mostraram-se dependentes tanto da morfologia como do grau de dispersão da argila.

  6. Efeito do armazenamento de argilas esmectíticas nas suas propriedades reológicas

    Directory of Open Access Journals (Sweden)

    I. A. da Silva

    Full Text Available Resumo Este trabalho investigou a influência do armazenamento de argilas esmectíticas naturais e industrializadas nas suas propriedades reológicas, tendo em vista que a reação de dupla troca que ocorre após o tratamento das argilas policatiônicas com o Na2CO3 é reversível. Os fenômenos envolvidos nesta reação ainda não são totalmente conhecidos e estudos anteriores mostram melhoras em algumas propriedades. As propriedades reológicas foram determinadas em argilas sódicas em 1995 e policatiônicas aditivadas com carbonato de sódio (Na2CO3 em 2015. A caracterização física, química e mineralógica das amostras foi realizada através das seguintes técnicas: análise granulométrica por difração a laser, composição química por fluorescência de raios X, difração de raios X e análises térmicas (DTA e TG. A reologia das dispersões foi determinada através da viscosidade aparente, viscosidade plástica e volume do filtrado, onde posteriormente foram consideradas normas da indústria do petróleo apenas como parâmetro de referência. Os resultados mostraram que as condições de armazenamento, umidade e tamanho de partículas das amostras trouxeram melhoras nas suas propriedades reológicas no decorrer dos anos, indicando a não reversibilidade da reação de troca de cátions, o que é importante na sua validade após fabricação.

  7. Aspects of development of leader creative thinking of medical student at the undergraduate level of medical education.

    Science.gov (United States)

    Sydorchuk, Аniuta S; Moskaliuk, Vasyl D; Randiuk, Yuriy O; Sorokhan, Vasyl D; Golyar, Oksana I; Sydorchuk, Leonid І; Humenna, Anna V

    Current issue deals with analysis of possible ways to develop leadership in medical students. Taking into consideration the reforming in National Ukrainian educative system and contemporary tendencies of world integration, the development of skillful personality is the prioritize task. The aim of study is to emphasize on the best-used ways for a development of leader creative thinking at the first basic level of medical education. methodology used here is descriptive analytical investigation based upon the own experience have been since 2005-2015 with undergraduate foreign medical students who studied disciplines « Infectious diseases » and «Epidemiology of Infectious diseases»,«Tropical Medicine and Clinical Parasitology» at the Higher state educational establishment of Ukraine « Bukovinian State Medical University » (Chernivtsi, Ukraine). the authors state that creative thinking of a leader is necessary and important part of innovative pedagogy nowadays. From the positive side of it, formation of new generation of medical students learned by competence-based approach with readiness to carry out multitasks. Coupled with, « thinking out of the box » development in individual person helps to discover maximum features of personality. From the negative side of it, there are difficulties to keep activity within certain limits. Most pre-graduate medical students actively express their best creativity in extra-class time within university events like Round Tables dedicated to International days of hepatitis B&C, malaria, HIV etc. to share with others of prevention recommendations. There are many methods to develop creativity and flexibility of cognitive processes, such as brainstorming session, case study, micro-reality, SCAMPER and lateral thinking method etc. Thus, leadership skills and creative thinking both had targeted for excellent qualitative medical education.

  8. ARGILAS NA COSMETOLOGIA: PROSPECÇÃO TECNOLÓGICA BASEADA EM PATENTES E ARTIGOS

    Directory of Open Access Journals (Sweden)

    Rogério Almiro Oliveira Silva

    2012-06-01

    Full Text Available O uso das argilas com propriedades tecnológicas tem despertado grandes interesses nas indústrias de diversos ramos, por ser um argilomineral abundante no Brasil e economicamente viável, como também, ao ser descartado não agride o meio ambiente. Dentre suas aplicações, destaque na cosmetologia, que está relacionada com o ajuste das propriedades reológicas, estabilidade de emulsões e suspensões e na liberação controlada de substâncias específicas. Esta prospecção foi realizada, usado as bases de patentes do INPI, EPO e USPTO e científica Web of Science. Os dados mostram a China como maior detentora de patentes na área de cosméticos, tendo 26 depósitos de patentes, o Brasil com 12 patentes depositadas, encontra-se em terceiro lugar, o que mostra o avanço das pesquisas na proteção desses produtos. O maior número das patentes encontradas nas preparações cosméticas é para uso em hidratantes e em formulações de detergentes. As publicações científicas mostram que os Estados Unidos lideram o ranking de publicações. A prospecção mostra que a pesquisa com argilas na área de cosmético é promissora.

  9. Selfie@ssessment as an Alternative Form of Self-Assessment at Undergraduate Level in Higher Education

    Science.gov (United States)

    Tulgar, Aysegül Takkaç

    2017-01-01

    This study aimed to get ideas formed by undergraduate foreign language students about the applicability, advantages and disadvantages of "selfie@ssessment", which can be regarded as an alternative form of self-assessment utilizing modern mobile phone technologies and the available Internet facilities. Underpinning this study of…

  10. A Simple Laser Induced Breakdown Spectroscopy (LIBS) System for Use at Multiple Levels in the Undergraduate Chemistry Curriculum

    Science.gov (United States)

    Randall, David W.; Hayes, Ryan T.; Wong, Peter A.

    2013-01-01

    A LIBS (laser induced breakdown spectroscopy) spectrometer constructed by the instructor is reported for use in undergraduate analytical chemistry experiments. The modular spectrometer described here is based on commonly available components including a commercial Nd:YAG laser and a compact UV-vis spectrometer. The modular approach provides a…

  11. How Do We Play the Genre Game in Preparing Students at the Advanced Undergraduate Level for Research Writing?

    Science.gov (United States)

    Paxton, Moragh

    2011-01-01

    The study described in this article sets out to understand the barriers and affordances to successful completion of the short research thesis required in many advanced undergraduate courses or Honours programmes. In the study, the genre features of students' research projects and the criteria used to assess them were analysed and both students and…

  12. Academic Procrastination of Undergraduates: Low Self-Efficacy to Self-Regulate Predicts Higher Levels of Procrastination

    Science.gov (United States)

    Klassen, Robert M.; Krawchuk, Lindsey L.; Rajani, Sukaina

    2008-01-01

    This article reports two studies exploring the academic procrastination of 456 undergraduates. Study 1 explores the relationships among academic procrastination, self-regulation, academic self-efficacy, self-esteem, and self-efficacy for self-regulation. Results reveal that although other self-variables are related to procrastination,…

  13. Caracterização de argilas e composição de massas cerâmicas preparadas com base na análise de curvas de consistência de misturas argila-água

    Directory of Open Access Journals (Sweden)

    M. M. T. Moreno

    2016-03-01

    Full Text Available Resumo Os produtos cerâmicos obtidos com argilas naturais são muito variados (tijolos, vasos, pisos e a maioria das matériasprimas possui alto conteúdo de ferro, apresentando tons avermelhados, principalmente após queima. Esta pesquisa estudou argilas utilizadas por uma fábrica de blocos cerâmicos localizada no polo Tatuí-Sorocaba - SP. Na caracterização das mesmas, foram abordados aspectos físico-químicos, geoquímicos, mineralógicos e cerâmicos com o intuito de analisar sua influência na composição de massas, as quais foram formuladas e processadas em laboratório com base na análise da consistência de misturas argila-água. Este método se mostrou promissor para controle de qualidade, melhor aproveitamento dos materiais e alternativas para ajuste da proporção dos componentes de uma massa.

  14. Influência do teor de polipropileno modificado com anidrido maleico nas propriedades do nanocompósito PP/EPDM/argila organofílica Influence from the concentration of interfacial agent on the properties of PP/EPDM/organoclay nanocomposites

    Directory of Open Access Journals (Sweden)

    Fernanda C. F. Braga

    2012-01-01

    Full Text Available Neste trabalho foram obtidos nanocompósitos de elastômeros termoplásticos à base de PP/EPDM/argila organofílica pela técnica de intercalação no estado fundido em câmara interna de mistura. Foram preparados concentrados de PP-MA (agente interfacial e Claytone 40 (argila organofílica nas proporções de 1:1, 2:1 e 3:1 que posteriormente foram adicionados na matriz PP/EPDM, previamente preparada, mantendo o teor de argila fixo em 5% (em massa. Foram investigadas as propriedades mecânicas de módulo elástico, tração e alongamento na ruptura, reologia e morfologia, a fim de estabelecer a influência da razão PP-MA/argila organofílica no comportamento dos nanocompósitos. Os resultados mostraram que a adição de teores crescentes de PP-MA melhorou a dispersão da argila organofílica na matriz de PP/EPDM. Conforme revelado pela difração de raio X e confirmados pela reometria foram obtidos nanocompósitos com estruturas mistas intercaladas e esfoliadas, que resultaram em maiores valores de módulo e deformação na ruptura.In this work, nanocomposites were prepared with PP/EPDM thermoplastic elastomer and organoclay by melt intercalation in an internal mixture chamber. Masterbatches composed of PP-MA/organoclay in proportions of 1:1, 2:1 and 3:1 were prepared and further added to a PP/EPDM thermoplastic elastomer, keeping the clay content fixed at 5% (by weight. The tensile properties, rheology and the morphology (organoclay dispersion, crystalline structure and crystallinity degree of nanocomposites were studied to establish the influence of the PP-MA/Organoclay ratio in the system. The results showed that the addition of increasing levels of PP-MA improved the dispersion of organoclay in the PP/EPDM matrix. As revealed in x-ray diffraction and confirmed by rheology measurements nanocomposites were obtained with mixed intercalated and exfoliated structures, resulting in higher tensile modulus and elongation at break.

  15. Training in radioprotection at undergraduate and postgraduate level at the school of pharmacy and biochemistry, Buenos Aires University

    International Nuclear Information System (INIS)

    Bergoc, R.; Caro, R.A.; Rivera, E.S.; Menossi, C.

    2000-01-01

    The advancement of knowledge in physics studies, medicine, pharmacology, cell biology and other disciplines that take place during the last 60 years is principally due to radioisotopes techniques. For this reason, the importance to teach radioisotopes methodologies at undergraduate and postgraduate levels kept growing. At the same time it was necessary to harmonize the use of these methodologies with environmental preservation. The School of Pharmacy and Biochemistry of the University of Buenos Aires offers four different Courses on Methodology of Radioisotopes in which the Radiological Protection is focalized under different aspects: 1) A Course for students in the Biochemistry Cycle; 2) A Course for post-Graduate in Medicine, Biochemistry, Biology, Chemists or other disciplines related to the health. 3) Another one for professionals wishing to up-date their knowledge; and finally, 4) one for Technicians in Nuclear Medicine and/or Biomedicine. The aims for teaching Radiological Protection are different for the four levels; in 1), the subject was done from 1960, (optional or mandatory) and with a arrived number of students. In some aspects the teaching of radioprotection is formative and in others informative, because the approval of the a signature does not habitable to ask from the Nuclear Regulatory Authority the authorization to work with radioactive material; in 2), the Course begun in 1962 and 1520 professionals have approved it. In this case the training in radioprotection aspects is theoretical and practical and very intensive, encompassing: dosimetric magnitudes and units, internal and external dosimetry of 125 I, 131 I, 201 Tl, 99M Tc, 60 Co and other isotopes, qualification of area, working conditions, contamination barriers, shielding; justification, optimization and dose limits; radioactive wastes; legal aspects; national and international legislation. The intensity of the training is in accord with that required by each professional and their

  16. The use of writing assignments to help students synthesize content in upper-level undergraduate biology courses.

    Science.gov (United States)

    Sparks-Thissen, Rebecca L

    2017-02-01

    Biology education is undergoing a transformation toward a more student-centered, inquiry-driven classroom. Many educators have designed engaging assignments that are designed to help undergraduate students gain exposure to the scientific process and data analysis. One of these types of assignments is use of a grant proposal assignment. Many instructors have used these assignments in lecture-based courses to help students process information in the literature and apply that information to a novel problem such as design of an antiviral drug or a vaccine. These assignments have been helpful in engaging students in the scientific process in the absence of an inquiry-driven laboratory. This commentary discusses the application of these grant proposal writing assignments to undergraduate biology courses. © FEMS 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  17. Adsorção de fósforo em solos de argila de atividade baixa Phosphate sorption in low activity clay soils

    Directory of Open Access Journals (Sweden)

    Gustavo Souza Valladares

    2003-01-01

    Full Text Available Neste estudo foram avaliadas possíveis correlações entre atributos físicos e químicos do solo e a capacidade máxima de adsorção de fósforo (CMAP em solos com argila de atividade baixa de diferentes regiões do Brasil, sendo utilizadas amostras de horizontes superficiais (A e subsuperficiais (B de 16 perfis de solos. As doses para a determinação da CMAP foram calculadas com base no teor de fósforo remanescente e variaram de 0 a 135 mg.L-1. A partir dos dados obtidos foram então construídas isotermas de adsorção de Langmuir. Foram feitas correlações entre CMAP e os teores de argila, de carbono orgânico, ki, kr, superfície específica, teor de alumínio determinado por ataque sulfúrico e teores das diferentes formas de ferro extraível. Foi observada grande variação nos valores de CMAP para o horizonte superficial (48 a 1429 mg.kg-1 e para o horizonte subsuperficial (455 e 1.667 mg.kg-1. Os coeficientes de correlação demonstraram haver uma associação significativa entre a CMAP e o teor de argila dos solos, ferro e alumínio, determinados pelo ataque sulfúrico e ferro extraído com ditionito-citrato-bicarbonato (DCB. A análise de regressão múltipla mostrou bom ajuste aos valores da CMAP com base em atributos dos solos estudados.In this study possible correlations between physical and chemical properties and the maximum phosphorus adsorption capacity (MAPC were evaluated in soils with low activity clay from different regions of Brazil, using samples from the surface (A and subsurface (B horizons of 16 soil profiles. The dosages for the determination of MAPC were calculated from the level of remaining phosphorus and they ranged from 0 to 135 mg L-1. From this data isotherms of P adsorption were built. Correlations were tested between MAPC and the clay content, organic carbon, ki, kr, specific surface, Al content determined by sulfuric acid attack, and content of different forms of extracted iron. A high variation in the

  18. Caracterizações de argilas bentoníticas e síntese de argilas organofílicas para uso em nanocompósitos poliméricos: parte II Characterization of bentonite clay and synthesis of organoclay for polymer nanocomposites applications: part II

    Directory of Open Access Journals (Sweden)

    R. Barbosa

    2012-12-01

    Full Text Available Nanocompósitos poliméricos tem atraído um considerável interesse, o que se deve a estes materiais oferecerem combinações incomuns de propriedades. As argilas esmectíticas são comumente utilizadas como fase dispersa na obtenção dos nanocompósitos, em particular destaque para as argilas bentoníticas. Neste trabalho, foram estudadas três argilas bentoníticas sem modificação e após a modificação ou organofilização com o sal cloreto de estearil dimetil amônio. A capacidade de troca catiônica (CTC das argilas bentoníticas sem modificação foi realizada. A eficiência da organofilização foi avaliada por fluorescência de raios X e o grau de expansão das argilas organofílicas foram estudados por difração de raios X. A argila 1346 apresentou maior CTC em relação às demais argilas. Além disso, os resultados indicaram a organofilização das argilas com o sal quaternário de amônio, o que foi observado pela presença do sal no espaçamento basal das argilas e pela expansão basal na reflexão d001 das argilas.Polymeric nanocomposites have attracted considerable interest because this material offers unusual combination of properties. The smectite clays are commonly used as the dispersed phase to obtain nanocomposites, in particular, bentonite clays. In this work three bentonite clays without modification and after modification with salt or organophilization stearyl dimethyl ammonium chloride were studied. The cation exchange capacity (CEC of bentonite clay was carried out without modification. The efficiency of organophilization was evaluated by X-ray fluorescence and the degree of expansion of the organoclay by X-ray diffraction. The 1346 clay shows higher CEC than that of other clays. In addition, the results indicate that organophilization clays with quaternary ammonium salt, which was observed by the presence of salt in the basal spacing of clay and the expansion of the basal reflection d001 clays.

  19. Transformation and trends in preventive and social medicine education at the undergraduate level in a Brazilian medical school.

    Science.gov (United States)

    Forster, A C; Passos, A D; Dal-Fabbro, A L; Laprega, M R

    2001-01-01

    In the present study we discuss some transformations in undergraduate training in Preventive and Social Medicine in the Department of Social Medicine of the Faculty of Medicine of Ribeiro Preto, University of So Paulo, from 1993 to 1999. Aspects of the relationship between medical training and the reorganization of local services of the Brazilian national health system, and between graduate teaching in Preventive and Social Medicine and medical education as a whole are discussed. The crisis in Preventive and Social Medicine and its influence of medical training are evaluated. Trends for the application of a body of knowledge of the specialty and for the relationship between the department and the medical school are discussed.

  20. Designing and Implementing a Computational Methods Course for Upper-level Undergraduates and Postgraduates in Atmospheric and Oceanic Sciences

    Science.gov (United States)

    Nelson, E.; L'Ecuyer, T. S.; Douglas, A.; Hansen, Z.

    2017-12-01

    In the modern computing age, scientists must utilize a wide variety of skills to carry out scientific research. Programming, including a focus on collaborative development, has become more prevalent in both academic and professional career paths. Faculty in the Department of Atmospheric and Oceanic Sciences at the University of Wisconsin—Madison recognized this need and recently approved a new course offering for undergraduates and postgraduates in computational methods that was first held in Spring 2017. Three programming languages were covered in the inaugural course semester and development themes such as modularization, data wrangling, and conceptual code models were woven into all of the sections. In this presentation, we will share successes and challenges in developing a research project-focused computational course that leverages hands-on computer laboratory learning and open-sourced course content. Improvements and changes in future iterations of the course based on the first offering will also be discussed.

  1. Caracterização de argilas plásticas do tipo "ball clay" do litoral paraibano

    Directory of Open Access Journals (Sweden)

    Menezes R. R.

    2003-01-01

    Full Text Available Os depósitos de argilas plásticas para cerâmica branca ("ball clays" de alta qualidade não são comuns, estando localizados basicamente nos Estados Unidos e no Reino Unido. As "ball clays" são utilizadas em uma série de indústrias que vão desde a indústria cerâmica à de cosméticos. Assim, este trabalho tem por objetivo analisar argilas do tipo "ball clay" extraídas do litoral paraibano, realizando sua caracterização para fins cerâmicos. Sua caracterização foi realizada por meio da determinação da massa específica real, CTC, área superficial (BET, distribuição granulométrica, composição química, ATD/ATG, DRX e MET. Após caracterização, foram conduzidos ensaios tecnológicos para fins cerâmicos com as amostras. Com base nos resultados pode-se concluir que as amostras são argilas basicamente cauliníticas com queima branca em temperaturas de 1250 ºC e 1450 ºC. Além disso, apresentaram propriedades físico-mecânicas dentro das faixas indicadas na literatura para "ball clays" utilizadas em tecnologia cerâmica.

  2. Mineralogia da fração argila e estrutura de latossolos da região sudeste do Brasil

    OpenAIRE

    Ferreira,M. M.; Fernandes,B.; Curi,N.

    1999-01-01

    Este trabalho objetivou estudar a relação entre os constituintes mineralógicos da fração argila e o desenvolvimento da micro e macroestrutura de Latossolos do sudeste brasileiro. Para tanto, foram obtidas amostras do horizonte B de sete Latossolos, representativos deste grupamento, ocorrentes nos estados de Minas Gerais e Espírito Santo. As diferentes amostras foram submetidas à caracterização morfológica, química, física, mineralógica e micromorfológica. A partir dos diferentes resultados, f...

  3. Combined Effect of Levels in Personal Self-Regulation and Regulatory Teaching on Meta-Cognitive, on Meta-Motivational, and on Academic Achievement Variables in Undergraduate Students.

    Science.gov (United States)

    de la Fuente, Jesús; Sander, Paul; Martínez-Vicente, José M; Vera, Mariano; Garzón, Angélica; Fadda, Salvattore

    2017-01-01

    The Theory of Self- vs . Externally-Regulated Learning™ (SRL vs. ERL) proposed different types of relationships among levels of variables in Personal Self-Regulation (PSR) and Regulatory Teaching (RT) to predict the meta-cognitive, meta-motivational and -emotional variables of learning, and of Academic Achievement in Higher Education. The aim of this investigation was empirical in order to validate the model of the combined effect of low-medium-high levels in PSR and RT on the dependent variables. For the analysis of combinations, a selected sample of 544 undergraduate students from two Spanish universities was used. Data collection was obtained from validated instruments, in Spanish versions. Using an ex-post-facto design, different Univariate and Multivariate Analyses (3 × 1, 3 × 3, and 4 × 1) were conducted. Results provide evidence for a consistent effect of low-medium-high levels of PSR and of RT, thus giving significant partial confirmation of the proposed rational model. As predicted, (1) the levels of PSR and positively and significantly effected the levels of learning approaches, resilience, engagement, academic confidence, test anxiety, and procedural and attitudinal academic achievement; (2) the most favorable type of interaction was a high level of PSR with a high level RT process. The limitations and implications of these results in the design of effective teaching are analyzed, to improve university teaching-learning processes.

  4. Monocultivo de eucalipto e consórcio com sesbânia: crescimento inicial em cavas de extração de argila Eucalyptus monocropping and intercropped with sesbania: initial growth in clay mining diggings

    Directory of Open Access Journals (Sweden)

    Anderson Ribeiro Santiago

    2009-02-01

    Full Text Available O consórcio de eucalipto com sesbânia na reabilitação de cavas de extração de argila pode representar uma forma de uso com benefícios ecológicos e econômicos, tendo em vista a sub-utilização a que essas cavas estão sendo submetidas. Este trabalho teve por objetivo avaliar a sobrevivência, o crescimento inicial e características fisiológicas de Eucalyptus camaldulensis, E. tereticornis, E. robusta e E. pellita, em monocultivos e plantios consorciados com Sesbania virgata. Foram instalados dois experimentos (monocultivo e plantio consorciado, numa cava de extração de argila, segundo o delineamento em blocos casualizados com quatro repetições. Os plantios consorciados favoreceram a sobrevivência das espécies. Os eucaliptos no monocultivo apresentaram maior crescimento inicial em diâmetro do colo e em área de copa. As espécies de eucalipto responderam aos efeitos do consórcio e das podas ao longo do tempo, exceto E. tereticornis.Intercropping of Eucalyptus and sesbania for the recovery of clay mining diggings can represent ecological and economic benefits. This work aimed to evaluate survival, initial growth and physiological characteristics of Eucalyptus camaldulensis, E. tereticornis, E. robusta and E. pellita, monocropped and intercropped with Sesbania virgata. Two experiments (monocropping and intercropped were set up in a clay mining digging, arranged in a randomized block design with 4 replicates. Intercropping favored the survival of the species. Eucalyptus monocropping presented a greater initial growth in soil level diameter and canopy area. The eucalyptus species responded to the effects of intercropping and pruning, along time, except for E. tereticornis.

  5. Undergraduate Convexity

    DEFF Research Database (Denmark)

    Lauritzen, Niels

    Based on undergraduate teaching to students in computer science, economics and mathematics at Aarhus University, this is an elementary introduction to convex sets and convex functions with emphasis on concrete computations and examples. Starting from linear inequalities and Fourier-Motzkin elimin...

  6. Environmental regulation of plant gene expression: an RT-qPCR laboratory project for an upper-level undergraduate biochemistry or molecular biology course.

    Science.gov (United States)

    Eickelberg, Garrett J; Fisher, Alison J

    2013-01-01

    We present a novel laboratory project employing "real-time" RT-qPCR to measure the effect of environment on the expression of the FLOWERING LOCUS C gene, a key regulator of floral timing in Arabidopsis thaliana plants. The project requires four 3-hr laboratory sessions and is aimed at upper-level undergraduate students in biochemistry or molecular biology courses. The project provides students with hands-on experience with RT-qPCR, the current "gold standard" for gene expression analysis, including detailed data analysis using the common 2-ΔΔCT method. Moreover, it provides a convenient starting point for many inquiry-driven projects addressing diverse questions concerning ecological biochemistry, naturally occurring genetic variation, developmental biology, and the regulation of gene expression in nature. Copyright © 2013 Wiley Periodicals, Inc.

  7. Efeito do SBS epoxidado como um agente compatibilizante para obtenção de nanocompósitos de SBS/argila cloisite 10A

    Directory of Open Access Journals (Sweden)

    Patrícia Alves da Silva

    2014-01-01

    Full Text Available Atualmente, cargas nanométricas são utilizadas para desenvolver novos materiais poliméricos com melhor desempenho mecânico. Neste trabalho, foi empregada uma mistura de borracha termoplástica de poli(estireno-b-butadieno-b-estireno (SBS e de argila Montmorilonita (Cloisite 10A via intercalação por fusão. Uma suspensão de Cloisite 10A em ciclohexano foi adicionada a SBS em solução. Para maior compatibilidade entre a argila e a borracha termoplástica utilizou-se uma borracha termoplástica epoxidada como agente compatibilizante. Neste estudo, a proporção argila compatibilizante foi de 0,6 até 3,0 para verificar a influência desta proporção nas propriedades mecânicas dos nanocompósitos. As propriedades morfológicas e mecânicas dos nanocompósitos foram avaliadas através da difração de raios X, microscopia eletrônica de transmissão, ensaio de tração, análise dinâmico-mecânica (DMA e avaliação do torque final da mistura. A combinação de argila/conpatibilizante favoreceu a formação de estruturas mais alongadas de argila que promoveram o ganho de módulo e tensão com pequena redução de alongamento.

  8. Undergraduate Convexity

    DEFF Research Database (Denmark)

    Lauritzen, Niels

    Based on undergraduate teaching to students in computer science, economics and mathematics at Aarhus University, this is an elementary introduction to convex sets and convex functions with emphasis on concrete computations and examples. Starting from linear inequalities and Fourier-Motzkin elimin......Based on undergraduate teaching to students in computer science, economics and mathematics at Aarhus University, this is an elementary introduction to convex sets and convex functions with emphasis on concrete computations and examples. Starting from linear inequalities and Fourier......-Motzkin elimination, the theory is developed by introducing polyhedra, the double description method and the simplex algorithm, closed convex subsets, convex functions of one and several variables ending with a chapter on convex optimization with the Karush-Kuhn-Tucker conditions, duality and an interior point...... algorithm....

  9. Undergraduate Student Attitudes and Perceptions toward Low- and High-Level Inquiry Exercise Physiology Teaching Laboratory Experiences

    Science.gov (United States)

    Henige, Kim

    2011-01-01

    The purpose of this investigation was to compare student attitudes toward two different science laboratory learning experiences, specifically, traditional, cookbook-style, low-inquiry level (LL) activities and a high-inquiry level (HL) investigative project. In addition, we sought to measure and compare students' science-related attitudes and…

  10. Findings on Student Use of Social Media at the Collegiate, Undergraduate, and Graduate Levels: Implications for Post-Secondary Educators

    Science.gov (United States)

    Nagel, Tyler W. S.; Remillard, Chaseten; Aucoin, Robert; Takenishi, Akari

    2018-01-01

    In this paper, we present findings on social media use by students at two institutions in three levels of postsecondary programs. We find that students are almost universally using at least one social network, with Facebook as the most popular, and Instagram second. Many respondents are simultaneously active on several social networks. However,…

  11. Undergraduate Convexity

    DEFF Research Database (Denmark)

    Lauritzen, Niels

    -Motzkin elimination, the theory is developed by introducing polyhedra, the double description method and the simplex algorithm, closed convex subsets, convex functions of one and several variables ending with a chapter on convex optimization with the Karush-Kuhn-Tucker conditions, duality and an interior point......Based on undergraduate teaching to students in computer science, economics and mathematics at Aarhus University, this is an elementary introduction to convex sets and convex functions with emphasis on concrete computations and examples. Starting from linear inequalities and Fourier...

  12. Confidence level in performing endodontic treatment among final year undergraduate dental students from the University of Medical Science and Technology, Sudan (2014

    Directory of Open Access Journals (Sweden)

    Elhadi Mohieldin Awooda

    2016-01-01

    Full Text Available Aim: This study is aimed to evaluate the confidence level of undergraduate final year dental students in performing root canal treatment (RCT and how it may affect their performance and perception regarding endodontics. Materials and Methods: A self-administered questionnaire was distributed to the final year dental students, at the University of Medical Sciences and Technology, Khartoum, Sudan (2013–2014. A total of 21 students were requested to participate voluntary and were asked to score their level of confidence using a 5-point Likert's scale. Results: Response rate was 100%, all the students (100% stated that the requirements set were enough, and 66.7% rated endodontic as average in terms of difficulty. When rating the mean of self-confidence for performing RCT in the dentition, maxillary teeth (2.43 ± 0.51 followed by mandibular teeth (2.71 ± 0.64 were higher, whereas the molars were the least. Higher scores of self-confidence were in administrating local anesthesia (4.24 ± 0.70, followed by root canal shaping by hand instrument (3.76 ± 0.54. No association was found between overall confidence level and the number of performed RCT (P = 0.721. No association was found between overall confidence level of students who were subjected to instrument fracture and their frequency of fracture (P = 0.507, supervisor' reaction (P = 0.587, and willingness to specialize in endodontics (P = 0.530. Conclusion: Students displayed high confidence in performing basic endodontic and treating single-rooted teeth. More exposure is recommended to enhance the students' self-confidence.

  13. Comportamento de blocos cerâmicos estruturais produzidos a partir da mistura de lama vermelha e argila

    Directory of Open Access Journals (Sweden)

    Alcebíades Negrão Macêdo

    Full Text Available A utilização de novas técnicas de aproveitamento de resíduos tem-se tornado cada vez mais importante na construção civil, principalmente quando se trata da utilização de resíduos de outros segmentos industriais e da redução de consumo de matérias-primas naturais. O objetivo deste estudo foi avaliar a utilização da lama vermelha, resíduo proveniente da produção de alumina metalúrgica, na produção de blocos cerâmicos vazados estruturais. A produção dos blocos foi realizada em uma indústria cerâmica, a partir de uma mistura de 60% de lama vermelha (LV e de 40% de argila. Após a produção dos blocos, realizaram-se ensaios de acordo com as normas técnicas, tais como absorção de água e compressão axial simples. A partir da análise dos resultados, observou-se que os blocos estruturais produzidos a partir da mistura de LV e argila atenderam aos parâmetros normativos quanto ao índice de absorção de água e de resistência à compressão, e que as resistências médias e características desses blocos foram superiores às dos blocos cerâmicos de referência.

  14. A Western blot-based investigation of the yeast secretory pathway designed for an intermediate-level undergraduate cell biology laboratory.

    Science.gov (United States)

    Hood-Degrenier, Jennifer K

    2008-01-01

    The movement of newly synthesized proteins through the endomembrane system of eukaryotic cells, often referred to generally as the secretory pathway, is a topic covered in most intermediate-level undergraduate cell biology courses. An article previously published in this journal described a laboratory exercise in which yeast mutants defective in two distinct steps of protein secretion were differentiated using a genetic reporter designed specifically to identify defects in the first step of the pathway, the insertion of proteins into the endoplasmic reticulum (Vallen, 2002). We have developed two versions of a Western blotting assay that serves as a second way of distinguishing the two secretory mutants, which we pair with the genetic assay in a 3-wk laboratory module. A quiz administered before and after students participated in the lab activities revealed significant postlab gains in their understanding of the secretory pathway and experimental techniques used to study it. A second survey administered at the end of the lab module assessed student perceptions of the efficacy of the lab activities; the results of this survey indicated that the experiments were successful in meeting a set of educational goals defined by the instructor.

  15. Assessing self-efficacy and college readiness level among new undergraduate students in computer science using metacognitive awareness inventory (MAI)

    Science.gov (United States)

    Othman, Wan Nor Afiqah Wan; Abdullah, Aziman

    2018-04-01

    This preliminary study was conducted to address the issue of academic planning skills among new university student. Due to lack of proper measurement mechanism for awareness and readiness among students, this study proposes Metacognitive Awareness Inventory (MAI) to assess the connection between student self-efficacy and college readiness. Qualitative and quantitative approach were used by provide an online self-assessment for new student of Faculty of Computer Systems & Software Engineering (FSKKP) and analyse the data respectively. The possible relationships between MAI and College Readiness Item (CRI) in self-assessment has been evaluated. The sample size of 368 respondents from UMP are responding to the online self-assessment. The initial finding shows most student (71%) of the respondent lack of skills in planning. We manage to use Pearson Product-moment correlation coefficient to find the significant relationship between MAI and CRI. Thus, we found that College Readiness provide sufficient evidence that there is a significant correlation with most of MAI items. The findings also indicated not much difference was found between gender in terms of self-efficacy level. This paper suggests the MAI and CRI is a reliable and valid scale to respond the planning skills issues among new university students.

  16. Use of Geodetic Surveys of Leveling Lines and Dry Tilt Arrays to Study Faults and Volcanoes in Undergraduate Field Geophysics Classes

    Science.gov (United States)

    Polet, J.; Alvarez, K.; Elizondo, K.

    2017-12-01

    In the early 1980's and 1990's numerous leveling lines and dry tilt arrays were installed throughout Central and Southern California by United States Geological Survey scientists and other researchers (e.g. Sylvester, 1985). These lines or triangular arrays of geodetic monuments commonly straddle faults or have been installed close to volcanic areas, where significant motion is expected over relatively short time periods. Over the past year, we have incorporated geodetic surveys of these arrays as part of our field exercises in undergraduate and graduate level classes on topics such as shallow subsurface geophysics and field geophysics. In some cases, the monuments themselves first had to be located based on only limited information, testing students' Brunton use and map reading skills. Monuments were then surveyed using total stations and global navigation satellite system (GNSS) receivers, using a variety of experimental procedures. The surveys were documented with tables, photos, maps and graphs in field reports, as well as in wiki pages created by student groups for a geophysics field class this June. The measurements were processed by the students and compared with similar data from surveys conducted soon after installation of the arrays, to analyze the deformation that occurred over the last few decades. The different geodetic techniques were also compared and an error analysis was conducted. The analysis and processing of these data challenged and enhanced students' quantitative literacy and technology skills. The final geodetic measurements are being incorporated into several senior and MSc thesis projects. Further surveys are planned for additional classes, in topics that could include seismology, geodesy, volcanology and global geophysics. We are also considering additional technologies, such as structure from motion (SfM) photogrammetry.

  17. Influência da mineralogia da fração argila nas propriedades físicas de latossolos da região sudeste do Brasil

    Directory of Open Access Journals (Sweden)

    M. M. Ferreira

    1999-09-01

    Full Text Available Visando avaliar a influência da mineralogia da fração argila nas propriedades físicas de Latossolos do sudeste brasileiro, selecionaram-se sete Latossolos, representativos deste grupamento, ocorrentes nos estados de Minas Gerais e Espírito Santo, apresentando distintas feições morfológicas associadas à estrutura do solo. A amostragem dos solos foi efetuada no horizonte B latossólico, sendo retiradas amostras deformadas e indeformadas. No laboratório, foram efetuadas análises químicas, físicas e mineralógicas. Estudos de regressão e correlação levados a efeito com os resultados das diversas caracterizações mostraram que as propriedades físicas associadas à estrutura foram marcadamente influenciadas pela composição mineralógica da fração argila dos Latossolos. O efeito do Al sobre as propriedades físicas estudadas foi mais pronunciado do que o do Fe. Latossolos cauliníticos apresentaram maior densidade do solo, menor estabilidade de agregados em água, menor macroporosidade e menor permeabilidade quando comparados com Latossolos gibbsíticos. A permeabilidade dos Latossolos estudados aumentou com o teor de argila.

  18. Estudo da influência de argilas organofílicas no processo de biodegradação do PLA

    Directory of Open Access Journals (Sweden)

    Patrícia Moraes Sinohara Souza

    2014-01-01

    Full Text Available Neste estudo, foram preparados, pelo método de intercalação do fundido, nanocompósitos de PLA com as argilas organofílicas Cloisite 20A e Cloisite 30B. A influência das argilas no processo de biodegradação do PLA foi avaliada com base no método de respirometria. A incorporação da argila Cloisite 20A praticamente não alterou a curva de mineralização do PLA. O nanocompósito com Cloisite 30B, por sua vez, apresentou um comportamento distinto, indicando um atraso no processo de biodegradação do polímero neste material. As amostras foram caracterizadas pelas técnicas de Difração de Raios X, Análise Termogravimétrica e Calorimetria Diferencial Exploratória. A caracterização dos materiais indicou uma estrutura possivelmente intercalada dos nanocompósitos, bem como a redução da estabilidade térmica e um pequeno aumento no grau de cristalinidade, em relação ao polímero puro.

  19. Frames for undergraduates

    CERN Document Server

    Han, Deguang; Larson, David; Weber, Eric

    2007-01-01

    Frames for Undergraduates is an undergraduate-level introduction to the theory of frames in a Hilbert space. This book can serve as a text for a special-topics course in frame theory, but it could also be used to teach a second semester of linear algebra, using frames as an application of the theoretical concepts. It can also provide a complete and helpful resource for students doing undergraduate research projects using frames. The early chapters contain the topics from linear algebra that students need to know in order to read the rest of the book. The later chapters are devoted to advanced topics, which allow students with more experience to study more intricate types of frames. Toward that end, a Student Presentation section gives detailed proofs of fairly technical results with the intention that a student could work out these proofs independently and prepare a presentation to a class or research group. The authors have also presented some stories in the Anecdotes section about how this material has moti...

  20. The effect of an enrolled nursing registration pathway program on undergraduate nursing students' confidence level: A pre- and post-test study.

    Science.gov (United States)

    Crevacore, Carol; Jonas-Dwyer, Diana; Nicol, Pam

    2016-04-01

    In the latter half of the 20th century, registered nurse education moved to university degree level. As a result, there has been a reduction in access for students to clinical experience. In numerous studies, nursing graduates have reported that they do not feel prepared for practice. The importance of maximising every learning opportunity during nursing school is paramount. At Edith Cowan University, a program was initiated that allows students to become enrolled nurses at the midway point of their degree to enable them to work and therefore gain experience in the clinical practice setting during their education. This study investigated the effect of the program on the nursing students' perception of their clinical abilities and explored their ability to link theory to practice. The research design for this study was a quasi-experimental, prospective observational cohort study. The study included 39 second-year nursing students not enrolled in the program (Group 1), 45 second-year nursing students enrolled in the program (Group 2), and 28 third-year nursing students who completed the program and are working as enrolled nurses (Group 3). Participants were asked to complete a Five Dimension of Nursing Scale questionnaire. The quantitative analyses showed that students in Group 1 had statistically significant higher pre-questionnaire perceived abilities across all domains, except in two dimensions when compared to Group 2. The post-questionnaire analysis showed that Group 1 had statistically significant lower perceived abilities in four of the five dimensions compared to Group 2. Group 1 also had significantly lower abilities in all dimensions compared to Group 3. Group 3 had a significantly higher perception of their clinical abilities compared to Group 2. This study highlights the value of meaningful employment for undergraduate nursing students by providing opportunities to increase confidence in clinical abilities. Copyright © 2016 Elsevier Ltd. All rights

  1. Fungicides and silicate clay on the control of antracnosis in yellow passionfruitFungicidas e argila silicatada no controle da antracnose do maracujá amarelo

    Directory of Open Access Journals (Sweden)

    Luiz Augusto Martins Peruch

    2012-10-01

    Full Text Available The anthracnose, caused by Glomerella cingulata (anamorf Colletotrichum gloeosporioides, is the most important fungal disease for aerial parts of yellow passionfruit. However, few studies about anthracnose control in field conditions have been published. The objective of this research was to evaluate silicate clay and fungicides for anthracnose control. Treatments evaluated were: tebuconazole (20g i.a./100L, copper oxychloride (180g i.a./100L, silicate clay (15g /L and control (untreated plants. The sanity of the plants was evaluated through area under disease progress curve (AUCPD, final severity (SEVF and disease progress curves. Experimental design was completely randomized with five repetitions. Tebuconazole and silicate clay proportioned significant reduction for AUCPD and SEVF compared to control. Copper oxychloride reduced only SEVF. Treatment with tebuconazole reduced AUCPD and SEVF in 75% and 71%, and silicate clay in 82%, respectively. Copper oxychloride reduced SEVF in 76%. The disease progress curves confirmed results and showed lower growth of anthracnose for tebuconazole and silicate clay. Silicate clay and tebuconazole are efficient to control anthracnose in passionfruit. A antracnose, causada por Glomerella cingulata (anamorfo Colletotrichum gloesporioides, é a principal doença fúngica de parte aérea do maracujazeiro amarelo. Todavia, poucos estudos de controle da doença a campo têm sido publicados, motivo pelo qual é importante avaliar diferentes fungicidas e substâncias alternativas para o manejo da antracnose. Neste trabalho foram avaliados os seguintes tratamentos: tebuconazole (20g i.a./100L, oxicloreto de cobre (180g i.a./100L, argila silicatada (15g /L e testemunha. A partir da avaliação da severidade da doença, determinou-se a área abaixo da curva de progresso da doença (AACPD, severidade final (SEVF e as curvas de progresso da doença. O delineamento adotado foi inteiramente casualizado com cinco repeti

  2. Teaching Old French Literature to Undergraduates.

    Science.gov (United States)

    Stewart, Harry E.

    As a prelude to graduate-level work for French majors, medieval studies are proposed for undergraduate students. Problems inherent in the establishment of the undergraduate program are identified with some suggested solutions. Concepts related to historical grammar, teaching materials, literature, and linguistics are developed. A logical course…

  3. Sexual and Contraceptive Practices among Female Undergraduates ...

    African Journals Online (AJOL)

    CONCLUSION: There is a high level of sexual activity and low contraceptive use among female undergraduate students in Southwest Nigeria. More reproductive health education and promotion is necessary to safeguard their sexual health. KEYWORDS: sexual behaviour, contraception, female undergraduates, Nigeria ...

  4. German 450: Introduction to Business Operations in Germany. Initiating the Integration Process into the International Business Environment for German Majors at the Undergraduate and Graduate Levels.

    Science.gov (United States)

    Becker, Claudia A.

    The redesign of a course on German business, taught at the University of Illinois at Chicago, is described. The course, intended for both undergraduate and graduate German majors, initially described and defined German institutions and common business practices and explored differences in historical and cultural backgrounds. Course revision…

  5. Obtenção de membranas microporosas a partir de manocompósitos de poliamida 6/argila nacional. Parte 1: influência da presença da argila na morfologia das membranas Obtaining microporous membranes from nylon 6/national clay nanocomposites. Part 1: influence of clay on the membranes morphology

    Directory of Open Access Journals (Sweden)

    Amanda M. D. Leite

    2009-01-01

    Full Text Available Membranas poliméricas foram produzidas a partir de nanocompósitos de poliamida 6 e argila constituída de silicatos em camadas, utilizando a técnica de imersão-precipitação. A argila foi modificada organicamente com os sais quaternários de amônio, Dodigen e Cetremide. Foram obtidos nanocompósitos de poliamida 6 com argila sem tratamento (MMT e com argila tratada (OMMT. Os nanocompósitos obtidos foram avaliados por DRX e MET, apresentando estrutura com predominância de lamelas de argila esfoliadas na matriz polimérica. As membranas produzidas pelo método de inversão de fases foram caracterizadas por DRX e MEV. A difração de raios X das membranas confirmou os resultados para os nanocompósitos anteriormente preparados. A superfície da matriz observada por MEV apresentou poros irregulares. Já para as membranas com os nanocompósitos observou-se maior quantidade e melhor distribuição dos poros, indicando que a presença da argila alterou a morfologia da membrana. As fotomicrografias das seções transversais dessas membranas mostraram uma estrutura morfológica assimétrica, constituída de uma pele, onde os poros são muito pequenos ou inexistentes, e uma camada porosa com poros de tamanho e distribuição uniformes.Polymeric membranes were produced from nylon 6 nanocomposites and a clay using the immersion-precipitation technique. The clay was organically modified by using a quaternary ammonium salt, Dodigen. Nanocomposites were obtained from nylon 6 with untreated clay (MMT and treated clay (OMMT. The nanocomposites were studied by XRD and TEM. The morphological structure consisted of an exfoliated and partially exfoliated clay layers in the polymeric matrix. The membranes were produced by phase inversion method and characterized by XRD and SEM. The X-ray diffraction of the membranes confirmed the results for the nanocomposites. The SEM image of the membrane top surface showed irregular pores. As for the membranes with the

  6. Life Science Professional Societies Expand Undergraduate Education Efforts

    Science.gov (United States)

    Matyas, Marsha Lakes; Ruedi, Elizabeth A.; Engen, Katie; Chang, Amy L.

    2017-01-01

    The "Vision and Change in Undergraduate Biology Education" reports cite the critical role of professional societies in undergraduate life science education and, since 2008, have called for the increased involvement of professional societies in support of undergraduate education. Our study explored the level of support being provided by…

  7. Elucidating Bioethics with Undergraduates.

    Science.gov (United States)

    Hoskins, Betty B.; Shannon, Thomas A.

    1977-01-01

    Discusses the importance of developing bioethics programs for undergraduate students. Two aspects are considered: (1) current areas of concern and sources of bibliographic information; and (2) problems encountered in undergraduate projects. A list of references is provided. (HM)

  8. NSU Undergraduate Academic Advising Center

    Science.gov (United States)

    College of Psychology Dr. Kiran C. Patel College of Allopathic Medicine Dr. Kiran C. Patel College of , dentistry, law, and psychology. Certificate Receive a graduate level certificate to enhance your skills Institute Core Services & Equipment HPD Research Undergraduate Research Community Community Outreach

  9. Undergraduate Events | Nova Southeastern University

    Science.gov (United States)

    College of Psychology Dr. Kiran C. Patel College of Allopathic Medicine Dr. Kiran C. Patel College of , dentistry, law, and psychology. Certificate Receive a graduate level certificate to enhance your skills Institute Core Services & Equipment HPD Research Undergraduate Research Community Community Outreach

  10. Mineralogia da fração argila e estrutura de latossolos da região sudeste do Brasil

    Directory of Open Access Journals (Sweden)

    M. M. Ferreira

    1999-09-01

    Full Text Available Este trabalho objetivou estudar a relação entre os constituintes mineralógicos da fração argila e o desenvolvimento da micro e macroestrutura de Latossolos do sudeste brasileiro. Para tanto, foram obtidas amostras do horizonte B de sete Latossolos, representativos deste grupamento, ocorrentes nos estados de Minas Gerais e Espírito Santo. As diferentes amostras foram submetidas à caracterização morfológica, química, física, mineralógica e micromorfológica. A partir dos diferentes resultados, foi possível concluir que caulinita e gibbsita são os principais constituintes mineralógicos responsáveis pelo desenvolvimento da estrutura dos Latossolos estudados. Latossolos cauliníticos apresentam estrutura em blocos, reflexo do ajuste face a face das placas de caulinita, enquanto os gibbsíticos apresentam estrutura granular, reflexo da ausência daquele ajuste.

  11. Engaging Undergraduates in Economics

    Science.gov (United States)

    Gajwani, Kiran; Miron, Jeffrey

    2015-01-01

    Siegfried and Stock (2007) explore the undergraduate training of PhD economists. Their findings show that among U.S. undergraduate economics programs, the Harvard University Economics Department produces many eventual economics PhD recipients. In this article, the authors discuss Harvard's undergraduate economics program and highlight some key…

  12. Clays as green catalysts in the cholesterol esterification: spectroscopic characterization and polymorphs identification by thermal analysis methods. An interdisciplinary laboratorial proposal for the undergraduate level

    International Nuclear Information System (INIS)

    Maria, Teresa M R.; Nunes, Rui M. D.; Pereira, Mariette M.; Eusebio, M. Ermelinda S.

    2009-01-01

    A laboratory experiment that enables the professor to introduce the problematic of sustainable development in pharmaceutical chemistry to undergraduate students is proposed, using a simple synthetic procedure. Cholesteryl acetate is prepared by the esterification of cholesterol using Montmorillonite K10 as heterogeneous catalyst. Cholesterol and cholesteryl acetate are characterized by spectroscopic ( 1 H RMN, 13 C RMN, FTIR) and thermal analysis techniques. The thermal methods are used to introduce the concepts of polymorphism and the nature of mesophases. (author)

  13. Comportamento de expansão de argilas bentoníticas organofílicas do estado da Paraíba Expansion behavior of organophilic bentonite clays from the State of Paraíba

    Directory of Open Access Journals (Sweden)

    R. R. Menezes

    2008-06-01

    Full Text Available Argilas organofílicas apresentam uma vasta gama de aplicações industriais, desde a indústria do petróleo à farmacêutica e de cosméticos, passando pela retenção de resíduos e produção de nanocompósitos argila-polímeros. Este trabalho tem por objetivo analisar a influência do teor de sais quaternários de amônio na organofilização de argilas bentoníticas. As argilas utilizadas foram caracterizadas através da determinação de sua composição química, distribuição do tamanho de partículas e capacidade de troca de cátions. As argilas organofílicas foram preparadas utilizando dois sais quaternários de amônio: cloreto de alquil benzil amônio (Dodigen e brometo de cetil trimetil amônio (Cetremide. As argilas organofilizadas foram caracterizadas por difração de raios X e espectroscopia de infravermelho. Os resultados mostraram que o espaçamento basal aumenta com o aumento na quantidade de sal utilizado para a organofilização e que o comportamento desse aumento depende do sal e da argila utilizados, sendo, linear quando da utilização do sal Dodigen e dependente do tipo da argila quando da utilização do sal Cetremide.Organoclays are used in a wide range of industrial applications, from the petroleum to the pharmaceutical and cosmetic industry, reaching the waste adsorption applications and production of polymer-clay nanocomposites. This work has as aim study the influence of the amount of quaternary ammonium salts in the organophilization of bentonite clays. The used clays were characterized by chemical composition, particle size distribution and cation exchange capacity determination. The organoclays were prepared using two quaternary ammonium salts: alkyl dimethyl benzyl ammonium chloride (Dodigen and cetyl trimethyl ammonium bromide (Cetremide. The organoclays were characterized by X-ray diffraction and IR spectroscopy. The results showed that the interlayer spacing increase with the rise in the amount of salt

  14. Cor e propriedades mecânicas de algumas argilas do Rio Grande do Norte para uso em cerâmica branca Color and mechanical properties of some clays found in Rio Grande do Norte State for whiteware

    Directory of Open Access Journals (Sweden)

    M. A. F. Melo

    2002-12-01

    Full Text Available O interesse crescente no uso de argilas para a produção de cerâmica no Rio Grande do Norte requer a caracterização técnica das matérias primas. Este trabalho mostra algumas propriedades de cinco argilas encontradas nesta região, tais como coloração após queima a 950 ºC, 1250 ºC e 1450 ºC, retração linear e resistência à flexão. A queima de argilas regionais resultaram em uma variedade de faixas de tonalidades do branco ao creme. As propriedades gerais dos produtos da queima são melhores que as reportadas na literatura, demonstrando o potencial tecnológico das argilas da região estudada.The growing interest in the use of clay minerals for the production of whiteware in Rio Grande do Norte demands the technological characterization of local raw materials. The present study reports some properties of five different clay minerals found in the region, such as tone upon firing at 950 ºC, 1250 ºC and 1450 ºC, linear shrinkage and flexural strength. Firing regional clays resulted in a variety of ranging from white to cream. The overall properties of the resulting products exceeded literature values, showing the technological potential of the regional clays investigated herein.

  15. The Geosciences Division of the Council on Undergraduate Research (GeoCUR): Supporting Faculty that Mentor Undergraduate Researchers

    Science.gov (United States)

    Fox, L. K.; Guertin, L. A.; Manley, P. L.; Fortner, S. K.

    2012-12-01

    Undergraduate research is a proven effective pedagogy that has a number of benefits including: enhancing student learning through mentoring relationships with faculty; increasing retention; increasing enrollment in graduate programs; developing critical thinking, creativity, problem solving and intellectual independence; and, developing an understanding of research methodology. Undergraduate research also has been demonstrated in preparing students for careers. In addition to developing disciplinary and technical expertise, participation in undergraduate research helps students improve communication skills (written, oral, and graphical) and time management. Early involvement in undergraduate research improves retention and, for those engaged at the 2YC level, helps students successfully transfers to 4YC. The Geosciences Division of the Council on Undergraduate Research (GeoCUR) supports faculty in their development of undergraduate research programs at all levels. GeoCUR leads workshops for new and future faculty covering all aspects of undergraduate research including incorporating research into coursework, project design, mentoring students, sustaining programs, and funding sources. GeoCUR members support new faculty by providing a range of services including: peer-review of grant proposals; advice on establishing an undergraduate research program; balancing teaching and research demands; and networking with other geoscientist. GeoCUR has also developed web resources that support faculty and departments in development of undergraduate research programs (http://serc.carleton.edu/NAGTWorkshops/undergraduate_research/index.html). This presentation will describe the services provided by GeoCUR and highlight examples of programs and resources available to geoscientists in all career stages for effective undergraduate research mentoring and development.

  16. Students' Understanding of Theory in Undergraduate Education

    Science.gov (United States)

    Liff, Roy; Rovio-Johansson, Airi

    2014-01-01

    This paper investigates undergraduate students' application of theory in their analysis of problems presented in authentic leadership cases. Taking a phenomenographic research approach, the paper identifies two levels at which students understand "theory": Level 1-Theory as knowledge acquired from books; Level 2-Theory as support for…

  17. Georgetown University and Hampton University Prostate Cancer Undergraduate Fellowship Program

    Science.gov (United States)

    2018-01-01

    goals. The first goal was to integrate upper level undergraduate students from Hampton University into the Georgetown Lombardi Comprehensive Cancer...upper level undergraduate Biology and Biochemistry Majors from Hampton University to work throughout the summer participating in prostate cancer...Dominican Republic summer 2017 Marissa Willis HU-GU Fellow Summer 2016 (Notario lab) Biology Major Hampton University, class of 2018, Math and

  18. Characteristics of some clay materials from Tamilnadu, India, and their possible ceramic uses Características de algumas argilas de Tamilnadu, India, e seus possíveis usos cerâmicos

    Directory of Open Access Journals (Sweden)

    C. Manoharan

    2012-09-01

    Full Text Available X-ray fluorescence, themogravimetric-differential thermal analysis, Fourier Transform Infrared spectroscopy, X-ray diffraction, particle size analysis and Atterberg limits were used to study physico-chemical, mineralogical and thermal properties of two types of clays from four different locations of Tamilnadu, India. The chemical and mineralogical compositions of these clays differ considerably. The mineralogy indicated that the alluvial clays (G1 and G2 comprise highly quartz, illite, kaolinite, plagioclase and small amount of chlorite. The red clays (R1 and R2 were also rich in quartz, well-ordered kaolinite and abundant Fe-bearing minerals such as goethite and hematite. With respect to chemical composition, the G1 and G2 clays contained high amount of SiO2, low amount of Al2O3 and low loss on ignition, however, the R1 and R2 clays contain moderate amount of SiO2, Al2O3, and high amount of Fe2O3 and high loss on ignition. The results indicate that clays from alluvial deposit have adequate characteristics for common brick fabrication. However, clays collected from red clay deposit possessing adequate properties for roofing tile manufacturing and can be used for the manufacturing of common brick with some modification.As técnicas de fluorescência de raios X, análise termogravimétrica-térmica diferencial, espectroscopia no infravermelho com transformada de Fourier, difração de raios X, análise de tamanho de partículas e limites de Atterberg foram utilizadas para o estudo de propriedades físico-químicas, mineralógicas e térmicas de dois tipos de argilas de quatro diferentes localizações em Tamilnadu, India. As composições químicas e mineralógicas dessas argilas diferem consideravelmente. A mineralogia indica que argilas aluviais (G1 and G2 são compostas principalmente de quartzo, ilita, caulinita, plagioclases e pequenas quantidades de cloretos. As argilas vermelhas (R1 and R2 são também ricas em quartzo, caulinita bem

  19. Thermodynamics a complete undergraduate course

    CERN Document Server

    Steane, Andrew M

    2016-01-01

    This is an undergraduate textbook in thermodynamics—the science of heat, work, temperature, and entropy. The text presents thermodynamics in and of itself, as an elegant and powerful set of ideas and methods. These methods open the way to understanding a very wide range of phenomena in physics, chemistry, engineering, and biology. Starting out from an introduction of concepts at first year undergraduate level, the roles of temperature, internal energy, and entropy are explained via the laws of thermodynamics. The text employs a combination of examples, exercises, and careful discussion, with a view to conveying the feel of the subject as well as avoiding common misunderstandings. The Feynman–Smuluchowski ratchet, Szilard’s engine, and Maxwell’s daemon are used to elucidate entropy and the second law. Free energy and thermodynamic potentials are discussed at length, with applications to solids as well as fluids and flow processes. Thermal radiation is discussed, and the main ideas significant to global...

  20. Argilas pilarizadas - uma introdução An introduction to pillared clays

    Directory of Open Access Journals (Sweden)

    Fernando J. Luna

    1999-02-01

    Full Text Available The synthesis, characterization and some applications in catalysis of pillared clays are described at an introductory level. The use of x-ray diffraction, surface area measurements, thermal analysis, IR spectrophotometry and solid-state NMR in the characterization of pillared clays is briefly discussed. Pillarization followed by doping or introduction of metal clusters into clays could lead to the development of selective heterogeneous catalysts.

  1. Correlation between self-differentiation and professional adaptability among undergraduate nursing students in China

    Directory of Open Access Journals (Sweden)

    Si-wei Liu

    2016-12-01

    Conclusion: The level of self-differentiation of undergraduate nursing studentsaffects their professional adaptability. Nursing educators should consider the characteristics of self-differentiation of undergraduate nursing students in developing measures to improve their professional adaptability.

  2. Undergraduate study in psychology: Curriculum and assessment.

    Science.gov (United States)

    Norcross, John C; Hailstorks, Robin; Aiken, Leona S; Pfund, Rory A; Stamm, Karen E; Christidis, Peggy

    2016-01-01

    The undergraduate curriculum in psychology profoundly reflects and shapes the discipline. Yet, reliable information on the undergraduate psychology curriculum has been difficult to acquire due to insufficient research carried out on unrepresentative program samples with disparate methods. In 2014, APA launched the first systematic effort in a decade to gather national data on the psychology major and program outcomes. We surveyed a stratified random sample of department chairs/coordinators of accredited colleges and universities in the United States that offer undergraduate courses and programs in psychology. A total of 439 undergraduate psychology programs (45.2%) completed the survey. This article summarizes, for both associate and baccalaureate programs, the results of the Undergraduate Study in Psychology. Current practices concerning the introductory course, the courses offered, core requirements, the psychology minor, and tracks/concentrations are presented. The frequency of formal program reviews and program-level assessment methods are also addressed. By extending prior research on the undergraduate curriculum, we chronicle longitudinal changes in the psychology major over the past 20 years. (c) 2016 APA, all rights reserved).

  3. Undergraduate Admissions | NSU

    Science.gov (United States)

    . Continuing Education Financial Aid Career Development Regional Campuses International Affairs Veterans Admissions Honors College Experiential Education Study Abroad Research Opportunities Career Preparation SharkLink California Disclosure International Affairs Undergraduate Advising Career Development Libraries at

  4. TRANSFORMING NIGERIA UNDERGRADUATE TRAINING ...

    African Journals Online (AJOL)

    communication skills for the development of information competencies amongst Nigerian undergraduates .... Determine the information requirement forthe research question. ... primary school postgraduate work, its methodology has been extensively ... skills through workbooks, computer tutorials classroom instructions, etc.

  5. Burnout in premedical undergraduate students.

    Science.gov (United States)

    Fang, Daniel Z; Fang, Daniel; Young, Christina B; Young, Christina; Golshan, Shah; Moutier, Christine; Zisook, Sidney

    2012-01-01

    There has been growing recognition that medical students, interns, residents and practicing physicians across many specialties are prone to burnout, with recent studies linking high rates of burnout to adverse mental health issues. Little is known about the trajectory and origins of burnout or whether its roots may be traced to earlier in medical training, specifically, during undergraduate studies. Here, the authors surveyed undergraduates at UC San Diego (UCSD) to assess the relationship of burnout to premedical status while controlling for depression severity. Undergraduate students at UCSD were invited to participate in a web-based survey, consisting of demographic questions; the Maslach Burnout Inventory Student Survey (MBI-SS), which gauged the three dimensions of burnout; and the nine-item Patient Health Questionnaire (PHQ-9), to assess depression severity. A total of 618 premedical students and 1,441 non-premedical students completed the questionnaire. Premedical students had greater depression severity and emotional exhaustion than non-premedical students, but they also exhibited a greater sense of personal efficacy. The burnout differences were persistent even after adjusting for depression. Also, premedical women and Hispanic students had especially high levels of burnout, although differences between groups became nonsignificant after accounting for depression. Despite the limitations of using a burnout questionnaire not specifically normed for undergraduates, the unique ethnic characteristics of the sample, and the uncertain response rate, the findings highlight the importance of recognizing the unique strains and mental health disturbances that may be more common among premedical students than non-premedical students. Results also underscore the close relationship between depression and burnout, and point the way for subsequent longitudinal, multi-institutional studies that could help identify opportunities for prevention and intervention.

  6. Developing an Undergraduate Information Systems Security Track

    Science.gov (United States)

    Sharma, Aditya; Murphy, Marianne C.; Rosso, Mark A.; Grant, Donna

    2013-01-01

    Information Systems Security as a specialized area of study has mostly been taught at the graduate level. This paper highlights the efforts of establishing an Information Systems (IS) Security track at the undergraduate level. As there were many unanswered questions and concerns regarding the Security curriculum, focus areas, the benefit of…

  7. Life Science Literacy of an Undergraduate Population

    Science.gov (United States)

    Medina, Stephanie R.; Ortlieb, Evan; Metoyer, Sandra

    2014-01-01

    Science content knowledge is a concern for educators in the United States because performance has stagnated for the past decade. Investigators designed this study to determine the current levels of scientific literacy among undergraduate students in a freshman-level biology course (a core requirement for majors and nonmajors), identify factors…

  8. Nanocompósitos de polietileno/argila bentonita nacional: influência da argila e do agente compatibilizante PE-g-MA nas propriedades mecânicas e de inflamabilidade Polyethylene/national bentonite clay nanocomposites: influence of clay and PE-g-MA coupling agent on the mechanical properties and flammability

    Directory of Open Access Journals (Sweden)

    Gustavo F. Brito

    2008-06-01

    Full Text Available Nanocompósitos de polietileno de alta densidade/argila bentonita nacional foram preparados por intercalação por fusão. A influência da adição da argila sem tratamento e da argila tratada com o sal quaternário de amônio Cetremide e do polietileno graftizado com anidrido maléico (PE-g-MA como agente compatibilizante foi avaliada. Os sistemas obtidos foram caracterizados por inflamabilidade, propriedades mecânicas e reológicas, difração de raios X e microscopia eletrônica de transmissão. Os resultados de difração de raios X e microscopia eletrônica de transmissão indicaram a obtenção de nanocompósitos com estruturas parcialmente esfoliadas e/ou intercaladas que conduziram ao aumento do módulo de elasticidade e do valor do torque. O teste de inflamabilidade mostrou que a adição da argila na matriz polimérica e a presença do PE-g-MA retardaram a velocidade de queima do sistema, ou seja, diminuíram a inflamabilidade do PE puro. Em geral, o sistema contendo o agente compatibilizante (PE-g-MA exibiu melhorias na estabilidade térmica e nanocompósitos parcialmente esfoliados foram formados, quando comparados à matriz de polietileno de alta densidade. O polietileno graftizado com anidrido maléico não apenas promoveu a esfoliação da argila, mas também facilitou a adesão carga-matriz, obtendo-se com isso melhorias nos resultados mecânicos do sistema.High density polyethylene/national bentonite clay nanocomposites were prepared with the melt intercalation technique. The effect of the clay without treatment and clay treated with quaternary ammonium salt Cetremide with polyethylene-graft-maleic anhydride as coupling agent was evaluated. The systems were characterized by flammability, mechanical and rheological properties, X ray diffraction and transmission electron microscopy. In general, the results of X ray diffraction and transmission electron microscopy showed partially exfoliated and/or intercalated structures with

  9. The undergraduate paediatric surgery curriculum in Nigeria – how ...

    African Journals Online (AJOL)

    This study aimed to: (i) identify main objectives of paediatric surgery at he undergraduate level; (ii) establish students' knowledge with regard to these objectives; (iii) evaluate the input of both specialists and non-specialists to these objectives; and (iv) examine the status of undergraduate paediatric surgery instruction in our ...

  10. Comparative Economics Systems in the Undergraduate Curriculum: An Update

    Science.gov (United States)

    Kovzik, Alexander; Johnson, Marianne

    2016-01-01

    In this study, the authors report on the status of comparative economics systems in the U.S. undergraduate economics curriculum. The treatment of comparative economics systems topics in introductory courses is examined through a survey of standard textbooks. To evaluate comparative economics systems at the advanced undergraduate level, they rely…

  11. Minimum Competencies in Undergraduate Motor Development. Guidance Document

    Science.gov (United States)

    National Association for Sport and Physical Education, 2004

    2004-01-01

    The minimum competency guidelines in Motor Development described herein at the undergraduate level may be gained in one or more motor development course(s) or through other courses provided in an undergraduate curriculum. The minimum guidelines include: (1) Formulation of a developmental perspective; (2) Knowledge of changes in motor behavior…

  12. Avaliação do potencial de compostos naturais (argila, turfa e carvão na remoção de chumbo e toxicidade de um efluente industrial

    Directory of Open Access Journals (Sweden)

    Richard Clayton Tomasella

    2015-06-01

    Full Text Available Métodos de tratamento avançado utilizando-se de materiais adsorventes alternativos podem substituir ou complementar tratamentos convencionais existentes, auxiliando na remoção de substâncias tóxicas provindas de diversos processos industriais. Espectrometria e testes biológicos (toxicidade aguda e crônica auxiliam no monitoramento dos rejeitos industriais, avaliando a eficiência desses sistemas alternativos de tratamento de efluentes. O trabalho objetivou promover a redução da concentração do chumbo (Pb e da toxicidade de um efluente industrial utilizando o potencial de compostos naturais (argilominerais e turfa e do carvão ativado (controle como adsorventes em ensaios em batelada. O carvão ativado permitiu remover 99,4% do Pb no efluente (15 min, e para os demais adsorventes a remoção ocorreu progressivamente até 24 horas, resultando em eficiências de remoção de 88,0% (argila do Vale do Paraíba - VP, 73,6% (argila de Ajapí - A e 63,5% (turfa. A toxicidade aguda foi completamente removida com a utilização do carvão ativado, enquanto eficiências de remoção maiores do que 50% foram obtidas utilizando compostos naturais. Efeito tóxico significativo não foi observado após o tratamento com o carvão ativado e argila VP com relação à toxicidade crônica. Os resultados indicam a possibilidade de utilização da argila VP como adsorvente de baixo custo comercial em métodos de tratamento avançado.

  13. Estudo da dispersão de argilas organofílicas em nanocompósitos de prolipropileno obtidos pelo método em solução com auxílio de ultrassom

    Directory of Open Access Journals (Sweden)

    Eveline Bischoff

    2013-01-01

    Full Text Available Nanocompósitos de polipropileno PP/OMMT foram preparados com o uso de duas argilas modificadas organofilicamente (C-15A e I-44P e de um compatibilizante (PP-g-MA pelo método em solução utilizando-se um banho de ultrassom. O objetivo deste estudo foi compreender a morfologia dos nanocompósitos, ou seja, o grau de dispersão destas argilas na matriz de polipropileno, e consequentemente, correlacioná-la com as propriedades finais obtidas. A morfologia dos nanocompósitos foi avaliada por Difração de Raios X (DRX e Microscopia Eletrônica de Transmissão (MET. As propriedades mecânico-dinâmicas e térmicas dos nanocompósitos foram avaliadas por Análise Mecânico-Dinâmica (DMA e Calorimetria Diferencial de Varredura (DSC. Análises estatísticas das imagens de transmissão foram realizadas possibilitando a obtenção da razão de aspecto (comprimento/espessura das partículas de argila.

  14. Undergraduate topology a working textbook

    CERN Document Server

    McCluskey, Aisling

    2014-01-01

    This textbook offers an accessible, modern introduction at undergraduate level to an area known variously as general topology, point-set topology or analytic topology with a particular focus on helping students to build theory for themselves. It is the result of several years of the authors' combined university teaching experience stimulated by sustained interest in advanced mathematical thinking and learning, alongside established research careers in analytic topology. Point-set topology is a discipline that needs relatively little background knowledge, but sufficient determination to grasp i

  15. Increasing URM Undergraduate Student Success through Assessment-Driven Interventions: A Multiyear Study Using Freshman-Level General Biology as a Model System

    Science.gov (United States)

    Carmichael, Mary C.; St. Clair, Candace; Edwards, Andrea M.; Barrett, Peter; McFerrin, Harris; Davenport, Ian; Awad, Mohamed; Kundu, Anup; Ireland, Shubha Kale

    2016-01-01

    Xavier University of Louisiana leads the nation in awarding BS degrees in the biological sciences to African-American students. In this multiyear study with ~5500 participants, data-driven interventions were adopted to improve student academic performance in a freshman-level general biology course. The three hour-long exams were common and…

  16. Using Business Theory to Motivate Undergraduate Students in Goal Attainment: An Empirical Assessment and Model for High Level Motivation and Goal Attainment

    Science.gov (United States)

    Anderson, Paul; Griego, Orlando V.; Stevens, Roxanne Helm

    2010-01-01

    Students at a private university in southern California took part in a study focusing on high level motivation and goal commitment. Using path analysis, this study mapped out two-paths. The first path to motivation and, therefore, goal commitment was through self-efficacy. The second path to goal commitment required a more supportive course.…

  17. Environmental Regulation of Plant Gene Expression: An Rt-qPCR Laboratory Project for an Upper-Level Undergraduate Biochemistry or Molecular Biology Course

    Science.gov (United States)

    Eickelberg, Garrett J.; Fisher, Alison J.

    2013-01-01

    We present a novel laboratory project employing "real-time" RT-qPCR to measure the effect of environment on the expression of the "FLOWERING LOCUS C" gene, a key regulator of floral timing in "Arabidopsis thaliana" plants. The project requires four 3-hr laboratory sessions and is aimed at upper-level undergraduate…

  18. Graduate admissions in clinical neuropsychology: the importance of undergraduate training.

    Science.gov (United States)

    Karazsia, Bryan T; Stavnezer, Amy Jo; Reeves, Jonathan W

    2013-11-01

    Discussions of and recommendations for the training of clinical neuropsychologists exist at the doctoral, internship, and post-doctoral level. With few exceptions, the literature on undergraduate preparations in clinical neuropsychology is sparse and lacks empirical evidence. In the present study, graduate-level faculty and current trainees completed surveys about graduate school preparations. Faculty expectations of minimum and ideal undergraduate training were highest for research methods, statistics, and assessment. Preferences for "goodness of fit" also emerged as important admissions factors. These results offer evidence for desirable undergraduate preparations for advanced study in clinical neuropsychology. Although undergraduate training in psychology is intentionally broad, results from this study suggest that students who desire advanced study in clinical neuropsychology need to tailor their experiences to be competitive in the application process. The findings have implications for prospective graduate students, faculty who train and mentor undergraduates, and faculty who serve on admissions committees.

  19. Water-dispersible clay in soils treated with sewage sludge Argila dispersa em água em solos tratados com lodo de esgoto

    Directory of Open Access Journals (Sweden)

    João Tavares Filho

    2010-10-01

    Full Text Available A by-product of Wastewater Treatment Stations is sewage sludge. By treatment and processing, the sludge is made suitable for rational and environmentally safe use in agriculture. The aim of this study was to assess the influence of different doses of limed sewage sludge (50 % on clay dispersion in soil samples with different textures (clayey and medium. The study was conducted with soil samples collected from native forest, on a Red Latosol (Brazilian classification: Latossolo Vermelho distroférrico loamy soil in Londrina (PR and a Red-Yellow Latosol (BC: Latossolo Vermelho-Amarelo distrófico medium texture soil in Jaguapitã (PR. Pots were filled with 3 kg of air-dried fine earth and kept in greenhouse. The experiment was arranged in a randomized block design with six treatments: T1 control, and treatments with limed sewage sludge (50 % as follows: T2 (3 t ha-1, T3 (6 t ha-1, T4 (12 t ha-1, T5 (24 t ha-1 and T6 (48 t ha-1 and five replications. The incubation time was 180 days. At the end of this period, the pots were opened and two sub-samples per treatment collected to determine pH-H2O, pH KCl (1 mol L-1, organic matter content, water-dispersible clay, ΔpH (pH KCl - pH-H2O and estimated PZC (point of zero charge: PZC = 2 pH KCl - pH-H2O, as well as the mineralogy of the clay fraction, determined by X ray diffraction. The results showed no significant difference in the average values for water-dispersible clay between the control and the other treatments for the two soil samples studied and ΔpH was the variable that correlated best with water-dispersible clay in both soils.As Estações de Tratamento de Esgoto Sanitário (ETES geram um subproduto (lodo de esgoto que, quando tratado e processado, adquire características que permitem sua utilização agrícola de maneira racional e ambientalmente segura. Este trabalho objetivou avaliar a influência de diferentes doses de lodo de esgoto caleado (50 % na dispersão de argilas em amostras de

  20. Undergraduate Program: Philadelphia

    Science.gov (United States)

    Betsock, Lori

    2008-08-01

    Undergraduate chemical science students—join us in Philadelphia on August 17 and 18, 2008, for an educational and career-oriented program designed specifically for you. Attend symposia about global climate change and clean energy; hear Nobel Laureate F. Sherwood Rowland speak about his fascinating career, "A Life in Tracer Chemistry". Weigh options for your future by attending the Graduate School Reality Check and graduate school recruiting events. All events will take place in the Sheraton Philadelphia City Center at 17th and Race Streets, except the Undergraduate Poster Sessions and Sci-Mix, which will be held in the Pennsylvania Convention Center.

  1. Matrix groups for undergraduates

    CERN Document Server

    Tapp, Kristopher

    2005-01-01

    Matrix groups touch an enormous spectrum of the mathematical arena. This textbook brings them into the undergraduate curriculum. It makes an excellent one-semester course for students familiar with linear and abstract algebra and prepares them for a graduate course on Lie groups. Matrix Groups for Undergraduates is concrete and example-driven, with geometric motivation and rigorous proofs. The story begins and ends with the rotations of a globe. In between, the author combines rigor and intuition to describe basic objects of Lie theory: Lie algebras, matrix exponentiation, Lie brackets, and maximal tori.

  2. Understanding the learning styles of undergraduate physiotherapy ...

    African Journals Online (AJOL)

    Background. Undergraduate students at universities have different learning styles. To perform optimally, both they and their educators should be made aware of their preferred learning styles and problem-solving abilities. Students have different backgrounds, strengths, weaknesses, interests, ambitions, levels of motivation ...

  3. NSU Undergraduate Student Tuition and Fees

    Science.gov (United States)

    College of Psychology Dr. Kiran C. Patel College of Allopathic Medicine Dr. Kiran C. Patel College of , dentistry, law, and psychology. Certificate Receive a graduate level certificate to enhance your skills Institute Core Services & Equipment HPD Research Undergraduate Research Community Community Outreach

  4. The Applicability of Undergraduate Education in Jobs.

    Science.gov (United States)

    Riley, Stephen T.

    1982-01-01

    A study to determine the applicability of undergraduate education in jobs and to evaluate some of the benefits accruing to a college educated person in the labor force is discussed. The relationship between the usefulness of college training in jobs and levels of job satisfaction and income is examined. (Author/MLW)

  5. Assessment of Health Informatics Competencies in Undergraduate ...

    African Journals Online (AJOL)

    Rwanda Journal Series F: Medicine and Health Sciences Vol. ... establishment of continuous on-the-job training in health informatics for those ... deals with the resources, devices and formalized methods .... informatics competencies in undergraduate level, the tool ... Descriptive statistics were used to describe numerical.

  6. Determination of spatial variability of aluminum according to the clay distribution in soils of Querência do Norte/Paraná State, BrazilDeterminação da variabilidade espacial de alumínio em função da distribuição de argila em solos de Querência do Norte/Paraná, Brasil

    Directory of Open Access Journals (Sweden)

    Marcelo Luiz Chicati

    2011-10-01

    Full Text Available The major part of Brazilian soils shows elevated aluminum contents and in several cases this element occurs in phytotoxic levels. Aluminum is a constituent of the soil´s clay minerals. Its release can occur to the exchangeable fraction or to the soil solution. The objective of this work was to demonstrate the relationship between the spatial variability of aluminum and the distribution of soil clay. In order to achieve that, a grid of soil samples was collected in field, defined by means of photointerpretation and observation of images. The results obtained in laboratory were submitted to statistical analyses to verify spatial dependence, which was proven later. The space continuity was studied by means of the semivariogram’s elaboration using different models. The best semivariograms were chosen by cross validation performed through "ordinary kriging". Thus, it could be observed that these variables showed structure of spatial dependence, with a positive correlation between them, besides it was possible to make maps in order to allow a better agricultural exploitation.A maior parte dos solos brasileiros possui altos teores de alumínio e, em muitos casos, este elemento ocorre em níveis fitotóxicos. Constituinte dos minerais de argila, pode ter sua liberação diretamente na forma trocável ou para a solução do solo. O objetivo deste trabalho foi demonstrar a relação entre a variabilidade espacial do alumínio e a distribuição de argila do solo. Para isto, foi coletada uma malha de amostras de solo em campo, definida por meio de fotointerpretação e observação de imagens. Os resultados obtidos em laboratório foram submetidos a análises estatísticas visando a verificação da dependência espacial, que foi comprovada posteriormente. A continuidade espacial foi estudada mediante a elaboração de semivariogramas utilizando-se diferentes modelos. Os melhores semivariogramas foram escolhidos mediante a validação cruzada executada

  7. Uso da argila no processo produtivo da cerâmica vermelha: Um estudo de caso no município de Paudalho, Pernambuco

    Directory of Open Access Journals (Sweden)

    Y. M. Paz

    2015-12-01

    Full Text Available As frações granulométricas do solo são consideradas recursos naturais não renováveis, devido a escala de tempo necessária para sua formação. A argila possui elevada disponibilidade na natureza, e por isso seu uso ainda é indiscriminado. É a matéria-prima principal para as indústrias de cerâmica vermelha pulverizadas em todo o território brasileiro. O objetivo do trabalho foi realizar uma discussão acerca do recurso natural não renovável argila e seu uso no processo produtivo da Indústria de cerâmica vermelha. Este foi desenvolvido através de pesquisa bibliográfica, e estudo de caso com realização de visitas técnicas a uma indústria de cerâmica vermelha localizada no município de Paudalho no estado de Pernambuco. No ano de 2013 a Indústria X adquiriu para estoque e consumo 70.161 toneladas, para uma produção de 35.806.268 blocos de cerâmica. De todo o quantitativo produzido houve uma perda de 7,5%, que reflete em 4.768 toneladas de argila e num prejuízo aproximado de R$ 845.835,52. Através do trabalho realizado percebe-se que há uma necessidade de planejamento da exploração e uso dos recursos naturais não renováveis, pois estes podem se tornar escassos e inviabilizar determinados processos produtivos. Isso pode acarretar em conflitos sociais e econômicos, pela valoração dos recursos e diminuição de disponibilidade para uso, ocasionando redução dos lucros por parte dos empresários e por consequência diminuição na oferta de empregos.Use of clay in the production process of the Red Ceramics: A case study in the city of Paudalho, Pernambuco Abstract: The fractions of soil are considered non-renewable natural resources, because the time scale required for its formation. Clay has high availability in nature, and therefore its use is still indiscriminate. It is the main raw material for the manufacture of red ceramic sprayed throughout the Brazilian territory. The objective was to conduct a discussion of

  8. Adjustment of the expedite method for clay content determination in Rondônia soils Ajuste de método expedito para determinação de teor de argila em solos de Rondônia

    Directory of Open Access Journals (Sweden)

    Jairo André Schlindwein

    2011-12-01

    Full Text Available Soil clay content is an important soil attribute and has been used to classification of phosphorus status in the soil in order to determinate the needing of phosphorus amounts to be applied to crops production. The aim of this research was to adjust the method for soil clay content determination, adopted by the laboratories of Southern Brazil (ROLAS-RS/SC, for soil clay content evaluation in Rondônia soils. The study was conducted using 50 soil samples from Rondônia State with wide range clay content. It was tested shaking periods (1.5, 2.0 and 2.5h associated with periods for soil particles decantation (1.5 and 2.0h to correlate with the standard method for soil texture testing, known as the pipette method. Clay content determined through this method was significantly correlated with pipette method. The better treatment was the combination of 2.0h of shaking and 1.5h of decantation, resulted in total period of 3.5h, which reduced the period to determine the soil clay content without loss of accuracy.O teor de argila é um importante atributo de solo e é utilizado na determinação de faixas de teores de fósforo para fins de recomendação de adubação. O objetivo deste trabalho foi ajustar o método de determinação de argila utilizado pelos laboratórios da ROLAS-RS/SC para avaliar os teores de argila dos solos de Rondônia. O estudo foi conduzido com 50 amostras de solos do Estado de Rondônia, com diferentes teores de argila. O teor de argila foi determinado utilizando-se o método da ROLAS-RS/SC, com diferentes períodos de agitação (1,5; 2,0 e 2,5h e de decantação das partículas do solo (1,5 e 2,0h e o método da pipeta, considerado padrão para essa determinação. Os teores de argila determinados nas combinações de períodos de agitação e de decantação se correlacionaram significativamente com os teores determinados pelo método da pipeta. O melhor tratamento foi a combinação de 2,0h de agitação e 1,5h de decanta

  9. Upgrading Undergraduate Biology Education

    Science.gov (United States)

    Musante, Susan

    2011-01-01

    On many campuses throughout the country, undergraduate biology education is in serious need of an upgrade. During the past few decades, the body of biological knowledge has grown exponentially, and as a research endeavor, the practice of biology has evolved. Education research has also made great strides, revealing many new insights into how…

  10. Increasing URM Undergraduate Student Success through Assessment-Driven Interventions: A Multiyear Study Using Freshman-Level General Biology as a Model System

    Science.gov (United States)

    Carmichael, Mary C.; St. Clair, Candace; Edwards, Andrea M.; Barrett, Peter; McFerrin, Harris; Davenport, Ian; Awad, Mohamed; Kundu, Anup; Ireland, Shubha Kale

    2016-01-01

    Xavier University of Louisiana leads the nation in awarding BS degrees in the biological sciences to African-American students. In this multiyear study with ∼5500 participants, data-driven interventions were adopted to improve student academic performance in a freshman-level general biology course. The three hour-long exams were common and administered concurrently to all students. New exam questions were developed using Bloom’s taxonomy, and exam results were analyzed statistically with validated assessment tools. All but the comprehensive final exam were returned to students for self-evaluation and remediation. Among other approaches, course rigor was monitored by using an identical set of 60 questions on the final exam across 10 semesters. Analysis of the identical sets of 60 final exam questions revealed that overall averages increased from 72.9% (2010) to 83.5% (2015). Regression analysis demonstrated a statistically significant correlation between high-risk students and their averages on the 60 questions. Additional analysis demonstrated statistically significant improvements for at least one letter grade from midterm to final and a 20% increase in the course pass rates over time, also for the high-risk population. These results support the hypothesis that our data-driven interventions and assessment techniques are successful in improving student retention, particularly for our academically at-risk students. PMID:27543637

  11. Undergraduate Program: New Orleans

    Science.gov (United States)

    Betsock, Lori

    2008-03-01

    Undergraduate chemical science students—join us in New Orleans on April 6-7, 2008 for an educational program designed specifically for you. Attend symposia on chemistry in sports and health and learn how it impacts your life everyday; meet with graduate school recruiters. Focus on your professional future in chemistry by learning more about careers in public health and how to communicate and work effectively with cross-functional teams. Hear eminent scientist Richard B. Silverman (John Evans Professor of Chemistry, Northwestern University and author of The Organic Chemistry of Drug Design and Drug Action 2004) speak about "Drug Discovery: Ingenuity or Serendipity?" All events will take place at the Hilton Riverside Hotel in New Orleans, except the Undergraduate Research Poster Sessions and Sci-Mix, both of which will be held in Hall A of the Ernest N. Morial Convention Center.

  12. Researching with undergraduate students

    DEFF Research Database (Denmark)

    Wulf-Andersen, Trine Østergaard; Mogensen, Kevin; Hjort-Madsen, Peder

    2013-01-01

    The article presents a particular case of undergraduate students working on subprojects within the framework of their supervisors' (the authors') research project during Autumn Semester 2012 and Spring Semester 2013. The article's purpose is to show that an institutionalized focus on students...... as "research learners" rather than merely curriculum learners proves productive for both research and teaching. We describe the specific university learning context and the particular organization of undergraduate students' supervision and assistantships. The case builds on and further enhances a well......-established and proven university model of participant-directed, problem-oriented project work. We explore students' and researchers' experiences of being part of the collaboration, focusing on learning potentials and dilemmas associated with the multiple roles of researcher and student that characterized...

  13. Gravitation, Symmetry and Undergraduates

    Science.gov (United States)

    Jorgensen, Jamie

    2001-04-01

    This talk will discuss "Project Petrov" Which is designed to investigate gravitational fields with symmetry. Project Petrov represents a collaboration involving physicists, mathematicians as well as graduate and undergraduate math and physics students. An overview of Project Petrov will be given, with an emphasis on students' contributions, including software to classify and generate Lie algebras, to classify isometry groups, and to compute the isometry group of a given metric.

  14. Preparação e caracterização reológica de nanocompósitos de poli(cloreto de vinila: plastisol com nano-argila Preparation and rheological characterization of nanocomposites of poly(vinyl chloride: paste with nano-clay

    Directory of Open Access Journals (Sweden)

    Paola P. S. de B. Bettio

    2012-01-01

    Full Text Available Neste trabalho foi estudada a influência da adição de nano-argila nas propriedades reológicas de suspensões de plastisol de poli(cloreto de vinila. Foram utilizados dois tipos de nano-argila, montmorilonita sódica e a organicamente modificada com sal quaternário de amônio, contemplando a avaliação tanto do método de inchamento da argila, quanto da influência da concentração. A nano-argila, na concentração de 2,5, 5, e 10 pcr, foi previamente inchada em plastificante, sob ação de cisalhamento e temperatura. Três tipos de plastificantes foram utilizados, diisobutil ftalato, diisononil ftalato e éster poliglicólico. Experimentos sem o inchamento prévio da argila também foram realizados para validação de sua influência. O plastisol foi obtido com a mistura da nano-argila com o PVC, plastificante diisononil ftalato e demais aditivos, em misturador planetário. A análise dos dados com método estatístico propiciou afirmar que tanto o tipo de argila quanto sua concentração foram determinantes na elevação da viscosidade da pasta, não tendo sido comprovada eficácia do inchamento prévio da argila.The influence from adding nanoclay on the properties of a poly(vinyl chloride plastisol microsuspension was studied. Two types of nanoclay were used, namely sodium montmorillonite and organophilic modified with quaternary ammonium salt, with both the method of clay swelling and clay concentration. Nanoclays at concentrations of 2.5, 5 and 10 phr, were previously swollen in the plasticizer under shear and temperature. Three plasticizers were used, viz. diisobutyl phthalate, diisononyl phthalate and ester polyglycolic. The plastisol was obtained by mixing the nanoclay with PVC, plasticizer diisononyl phthalate and other additives in a planetary mixer. Data analysis was performed with a statistical method, which allowed us to verify that the type of clay and its concentration affect the plastisol viscosity. The clay swelling method

  15. Astronomical Data in Undergraduate courses

    Science.gov (United States)

    Clarkson, William I.; Swift, Carrie; Hughes, Kelli; Burke, Christopher J. F.; Burgess, Colin C.; Elrod, Aunna V.; Howard, Brittany; Stahl, Lucas; Matzke, David; Bord, Donald J.

    2016-06-01

    We present status and plans for our ongoing efforts to develop data analysis and problem-solving skills through Undergraduate Astronomy instruction. While our initiatives were developed with UM-Dearborn’s student body primarily in mind, they should be applicable for a wide range of institution and of student demographics. We focus here on two strands of our effort.Firstly, students in our Introductory Astronomy (ASTR 130) general-education course now perform several “Data Investigations”, in which they interrogate the Hubble Legacy Archive to illustrate important course concepts. This was motivated in part by the realization that typical public data archives now include tools to interrogate the observations that are sufficiently accessible that introductory astronomy students can use them to perform real science, albeit mostly at a descriptive level. We are continuing to refine these investigations, and, most importantly, to critically assess their effectiveness in terms of the student learning outcomes we wish to achieve. This work is supported by grant HST-EO-13758, provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.Secondly, at the advanced-undergraduate level, students taking courses in our Astronomy minor are encouraged to gain early experience in techniques of astronomical observation and analysis that are used by professionals. We present two example projects from the Fall 2015 iteration of our upper-division course ASTR330 (The Cosmic Distance Ladder), one involving Solar System measurements, the second producing calibrated aperture photometry. For both projects students conducted, analysed, and interpreted observations using our 0.4m campus telescope, and used many of the same analysis tools as professional astronomers. This work is supported partly from a Research Initiation and Seed grant from the

  16. Avaliação comparativa entre os nanocompósitos de argila motmorilonita/LLDPE e com hexaniobato de potássio/LLDPE: caracterização das propriedades mecânicas e de transporte

    Directory of Open Access Journals (Sweden)

    Daniel Komatsu

    2014-01-01

    Full Text Available Nanocompósitos de LLDPE/argila montmorilonita e LLDPE/niobato organofilizado foram obtidos através da diluição de um concentrado da respectiva carga em uma extrusora dupla rosca obtendo-se concentrações finais de 1,5 a 10,0% em carga. No presente estudo utilizou-se o ensaio mecânico de tração e o de permeação ao vapor de água e ao oxigênio para caracterizar estes nanocompósitos. No ensaio mecânico de tração observou-se aumento no valor do módulo elástico e diminuição no valor da tenacidade com o aumento da concentração da argila montmorilonita, o que era esperado devido à rigidez da carga. Comportamento semelhante também foi observado no caso dos nanocompósitos de niobato organofilizado, porém de maneira menos acentuada devido à estrutura química do niobato de potássio. Com auxílio do MEV/FEG observou-se que a distribuição da argila é superior a do niobato organofilizado para concentrações inferiores a 10,0% de carga. No ensaio de permeação ocorre diminuição no valor de permeabilidade com o aumento da concentração da argila montmorilonita para ambos os gases utilizados. Na presença do niobato organofilizado observa-se diminuição, seguido de aumento no valor da permeação com o aumento da concentração da carga para ambos os gases utilizados. Além disso, observou-se que a polaridade do gás utilizado é um fator importante no processo de difusão através do nanocompósito.

  17. Obtenção de membranas microporosas a partir de nanocompósitos de polimida 6/argila nacional. Parte 2: avaliação microestrutural e de permeabilidade das membranas obtidas

    Directory of Open Access Journals (Sweden)

    Amanda M. D. Leite

    2014-01-01

    Full Text Available Membranas de híbridos orgânico/inorgânico de poliamida 6 e argilomineral constituído de silicatos em camadas foram estudadas em comparação com o polímero puro. Uma argila sódica, como recebida da indústria, e outra organofilizada com os sais quaternários de amônio Dodigen e Cetremide foram utilizadas. Os sais tornam hidrofóbica a superfície da argila e favorecem sua incorporação na matriz polimérica no estado fundido. A partir dos nanocompósitos obtidos foram preparadas membranas por meio da técnica de imersão-precipitação, tendo como solvente o ácido fórmico e como método de produção a precipitação em um banho de água (não-solvente. O teor do ácido nas soluções poliméricas, dos híbridos e da poliamida 6 pura, foi variado para avaliar sua influência na morfologia e na permeabilidade das membranas produzidas. As membranas apresentaram morfologia assimétrica, constituída de uma pele filtrante e um suporte poroso. A presença da argila tratada com os diferentes sais alterou a formação dos poros, tanto na superfície como na seção transversal. As partículas de argila provavelmente atuaram como barreira ao fluxo. Observou-se ainda que o teor de ácido utilizado influenciou de forma significativa a estrutura assimétrica da membrana; quanto maior o teor de ácido maior a espessura da pele filtrante. O teor de ácido também levou à alteração do tamanho e da distribuição dos poros. As medidas de fluxo realizadas com os dois teores de ácido diferentes mostraram uma resposta em função da morfologia diferenciada obtida.

  18. Avaliação de coberturas comestíveis compostas por quitosana e argila no revestimento em tomates sob refrigeração pelo método dipping

    Directory of Open Access Journals (Sweden)

    Tamara Lorena Eufrazio da Costa

    2013-03-01

    Full Text Available O tomate é um fruto muito perecível e com curta vida de prateleira, demonstrando uma necessidade do desenvolvimento de tecnologias que reduzam estas perdas. Na indústria de alimentos, a quitosana se destaca por ser de origem natural, renovável, biodegradável, atóxico e propriedade de formação de filme. A argila possibilita uma maior aderência do filme na superfície do fruto, e é utilizada para fechar vacâncias existentes na rede polimérica. Tendo em vista as características da quitosana e da argila, no presente trabalho é abordada a síntese e utilização de filmes compostos por quitosana e argila, com aplicação em revestimento em tomates, visando o aumento da vida útil dos frutos e assim diminuir as perdas pós-colheita. O filme foi sintetizado com 1% de quitosana e 1% argila. Para a caracterização, os filmes foram preparados e deixados secar pelo método casting, e em seguida foram realizadas as análises de espessura, solubilidade, opacidade e permeabilidade ao vapor de água. Para as análises físico-químicas, o filme foi preparado e aplicado sobre o fruto, pelo método dipping. O armazenamento foi realizado sob refrigeração a 13 ± 1°C e umidade relativa de 80 ± 5% durante 12 dias, sendo feita as análises a cada três dias. As análises foram: perda de massa, firmeza de polpa, coloração da casca, sólidos solúveis, acidez titulável, ácido ascórbico e a relação sólidos solúveis e acidez titulável. Nas análises de caracterização dos filmes foram obtidos valores de acordo com a literatura. Já para as análises físico-químicas, não foi obtido efeito significativo para a interação entre tratamento e tempo, tendo a perda de massa efeito isolado para tratamento e tempo e efeito significativo do tempo para as demais características em condições de armazenamento.

  19. Estudo do comportamento reológico das argilas bentoníticas de Cubati, Paraíba, Brasil Rheological behavior study of bentonite clays from Cubati, Paraíba, Brazil

    Directory of Open Access Journals (Sweden)

    R. R. Menezes

    2009-12-01

    Full Text Available O estado da Paraíba possui jazidas de bentonitas utilizadas comercialmente para uma vasta gama de setores tecnológicos. No entanto, esses jazimentos estão se exaurindo, após dezenas de anos de exploração. Assim, este trabalho tem por objetivo dar prosseguimento à caracterização de argilas bentoníticas de Cubati, PB, estudando o comportamento reológico das dispersões argila-água de modo avaliar seu desempenho para fluidos de perfuração de poços de petróleo base água. As amostras estudadas foram secas a 60 ºC e determinou-se sua capacidade de troca de cátions. As argilas foram transformadas em sódica por tratamento com Na2CO3 e em seguida realizou-se o estudo do comportamento reológico das dispersões. As viscosidades, aparente e plástica, o volume de filtrado, os parâmetros reológicos do fluido e a sua força gel foram determinados. Os resultados evidenciaram que cada amostra apresenta um teor ótimo de carbonato de sódio e que as dispersões argila-água possuem um comportamento pseudo-plástico e tixotrópico. Duas amostras apresentam potencial para utilização como agentes viscosificantes para fluidos de perfuração.The bentonites of the state of Paraíba, Brazil, are commercially used in numerous technological sectors, particularly in oil drilling muds. However, these bentonite deposits are becoming exhausted due to several years of exploitation. Thus, the aim of this work was continue the characterization of the bentonites from Cubati, Paraíba, studying the rheological behavior of water-clay suspensions, evaluating their viability to be used in oil drilling muds. The samples were dried at 60 ºC and, their cation exchange capacity was determined. The natural bentonite clays were transformed in sodium bentonite by addition of concentrated Na2CO3 solution, then the suspensions rheological study was performed. The apparent and plastic viscosities, water loss, rheological parameters and the gel force were determined

  20. Undergraduate Student Teachers' Views and Experiences of a Compulsory Course in Research Methods

    Science.gov (United States)

    Lombard, B. J. J.

    2015-01-01

    In comparison to attention given to research methods for education students at postgraduate level, the offering of research methods for education students at undergraduate level is less often considered. Yet, it is agreed that research methods for undergraduate level students is important for shaping student attitudes, learning and achievement in…

  1. Pattern of Smartphones Utilisation among Engineering Undergraduates

    Directory of Open Access Journals (Sweden)

    Muliati Sedek

    2014-04-01

    Full Text Available The smartphones ownership among the undergraduates in Malaysia was recorded as high. However, little was known about its utilization patterns, thus, the focus of this research was to determine the utilisation patterns of smartphones based on the National Education Technology Standard for Students (NETS.S among engineering undergraduates in Malaysia. This study was based on a quantitative research and the population comprised undergraduates from four Malaysian Technical Universities. A total of 400 questionnaires were analyzed. Based on the results, the undergraduates’ utilisation level of smartphones for communication and collaboration tool was at a high level. Meanwhile, utilisation for operations and concepts tool and research and information fluency tool were at moderate level. Finally, smartphones utilisation as digital citizenship tool and critical thinking, problem solving and creativity tool were both at a low level. Hence, more training and workshops should be given to the students in order to encourage them to fully utilise smartphones in enhancing the higher order thinking skills.

  2. Integrating Clinical Neuropsychology into the Undergraduate Curriculum.

    Science.gov (United States)

    Puente, Antonio E.; And Others

    1991-01-01

    Claims little information exists in undergraduate education about clinical neuropsychology. Outlines an undergraduate neuropsychology course and proposes ways to integrate the subject into existing undergraduate psychology courses. Suggests developing specialized audio-visual materials for telecourses or existing courses. (NL)

  3. Sage for undergraduates

    CERN Document Server

    Bard, Gregory V

    2015-01-01

    Professor Bard has provided a valuable service by carefully explaining everything an undergraduate student of mathematics, or a teacher of these topics, needs to get started with Sage quickly and easily. It will also be useful for any student or teacher of another STEM discipline. There is an excellent mix of the most frequently used commands, along with warnings about common pitfalls or caveats. I highly recommend it for anyone new to Sage, or who desires an overview of the system's impressive capabilities. -Robert A. Beezer, University of Puget Sound This book is a sort of "Missing Manual"

  4. Who am I? ~ Undergraduate Computer Science Student

    OpenAIRE

    Ferris, Jane

    2012-01-01

    As part of a school review process a survey of the students was designed to gain insight into who the students of the school were. The survey was a voluntary anonymous online survey. Students were able to skip questions and select more than one option in some questions. This was to reduce frustration with participation in the survey and ensure that the survey was completed. This conference details the average undergraduate Computer Science student of a large third level institute.

  5. Burnout syndrome in nursing undergraduate students

    OpenAIRE

    Juliana Inhauser Riceti Acioli Barboza; Ruth Beresin

    2007-01-01

    Objectives: To classify nursing students on a socio-demographic basisin order to check whether they are acquainted with the meaning ofthe term burnout syndrome; to check for the presence of the burnoutsyndrome and assess its levels in undergraduate nurses. Methods:A cross-section study was carried out of 102 students at the NursingSchool of the Hospital Israelita Albert Einstein. A questionnaire wasmade up by the authors and applied along with the Maslachs BurnoutInventory (MBI). Results: Nin...

  6. Desenvolvimento de filmes de nananocompósitos polipropileno/argila organofílica para embalagens Development of polypropylene/organoclay nanocomposite films for packaging

    Directory of Open Access Journals (Sweden)

    Arthur R. A. Araújo

    2012-01-01

    Full Text Available Neste trabalho foram preparados filmes de nanocompósitos de polipropileno (PP contendo 1% em massa de bentonita modificada organicamente com tecnologia nacional (APO. Polipropileno enxertado com anidrido maleico (PP-g-AM e copolímero de etileno e álcool vinílico (EVOH foram utilizados como agentes compatibilizantes. Os nanocompósitos foram preparados através da intercalação no estado fundido em extrusora de filme plano. A influência do tipo e do teor de compatibilizante e do tipo de polipropileno, na morfologia, propriedades mecânicas e de barreira ao vapor d'água dos referidos filmes foi investigada. Os dados de difração de raio X evidenciam que apesar da morfologia dos nanocompósitos ter sido afetada pelo tipo de compatibilizante, esta praticamente não variou com o teor de compatibilizante utilizado. As morfologias e as propriedades de barreira ao vapor d'água dos nanocompósitos preparados com os polipropilenos PP H401 e PP H07D-00 são semelhantes. Entretanto, aqueles preparados com PP H07D-00 apresentaram melhores propriedades mecânicas, excetuando a resistência da termossoldagem à tração, do que os preparados com a matriz polimérica PP H401, e a transparência dos nanocompósitos preparados com PP H07D-00 foi idêntica à da matriz polimérica sem argila. Os resultados indicam que os filmes de nanocompósitos PP H07D-00 compatibilizados com 15% de PP-g-AM e contendo 1% de argila organofílica APO podem ser promissores para aplicação em embalagens.This work deals with polypropylene (PP nanocomposite films containing 1 wt. (% bentonite clay organically modified with national technology (APO. Maleic anhydride grafted polypropylene (PP-g-MA and ethylene vinyl alcohol (EVOH were used as compatibilizing agents. Nanocomposites were prepared by melt intercalation in a flat film extruder. An investigation was made of the influence from the type and content of compatibilizer and type of polypropylene on the morphology

  7. Dispersão de argila em microagregados de solo incubado com calcário Clay dispersion in microaggregates of soil incubated with limestone

    Directory of Open Access Journals (Sweden)

    Silvio Tulio Spera

    2008-12-01

    Full Text Available A compactação do solo restringe o rendimento de culturas de grãos. Dentre outros fatores, a calagem pode favorecer a dispersão de microagregados e a formação de camadas compactadas. O objetivo deste trabalho foi avaliar os efeitos do calcário e da esterilização em atributos físicos e químicos do solo relacionados com a compactação do solo. O experimento foi efetuado em colunas de PVC, em casa de vegetação, durante 18 meses. Amostras esterilizadas e não esterilizadas de um Latossolo Vermelho distrófico foram incubadas com doses equivalentes a 0, 1,9, 3,8, 5,7, 7,6 e 15,2 Mg ha-1. Após 18 meses, foram avaliados a macro e microporosidade, a densidade do solo, teor de argila dispersa, a condutividade hidráulica saturada, o pH e os teores de Al, Ca e Mg trocáveis e de matéria orgânica do solo. A calagem aumentou a densidade do solo, o teor de argila dispersa em água, o pH e os teores de Ca2+ e Mg2+ trocáveis, e decresceu a micro e macroporosidade, a condutividade hidráulica saturada, os teores de matéria orgânica e de Al trocável. O aumento de pH e a redução da condutividade hidráulica saturada foram maiores no solo esterilizado. Os efeitos da calagem foram mais pronunciados na quantidade correspondente a 3,8 Mg ha-1. A esterilização aumentou o valor do pH em água e reduziu os teores de matéria orgânica e de Ca2+, além da condutividade hidráulica saturada. A dispersão de microagregados pela calagem pode, em parte, contribuir para a compactação do solo.Soil compaction limits grain yields. Among others factors, soil amendment with agricultural lime can contribute to micro-aggregate dispersion and the formation of compacted layers. The objective of this study was to evaluate the effect of lime on soil physical attributes related to soil compaction. The experiment was carried out in PVC columns, in a glass house, during 18 months. Sterilized and non-sterilized samples of a dystrophic Red Latosol (Hapludox were

  8. Persistence of undergraduate women in STEM fields

    Science.gov (United States)

    Pedone, Maggie Helene

    The underrepresentation of women in science, technology, engineering, and mathematics (STEM) is a complex problem that continues to persist at the postsecondary level, particularly in computer science and engineering fields. This dissertation explored the pre-college and college level factors that influenced undergraduate women's persistence in STEM. This study also examined and compared the characteristics of undergraduate women who entered STEM fields and non-STEM fields in 2003-2004. The nationally representative Beginning Postsecondary Students Longitudinal Study (BPS:04/09) data set was used for analysis. BPS:04/09 study respondents were surveyed three times (NPSAS:04, BPS:04/06, BPS:04/09) over a six-year period, which enabled me to explore factors related to long-term persistence. Astin's Input-Environment-Output (I-E-O) model was used as the framework to examine student inputs and college environmental factors that predict female student persistence (output) in STEM. Chi-square tests revealed significant differences between undergraduate women who entered STEM and non-STEM fields in 2003-2004. Differences in student demographics, prior academic achievement, high school course-taking patterns, and student involvement in college such as participation in study groups and school clubs were found. Notably, inferential statistics showed that a significantly higher proportion of female minority students entered STEM fields than non-STEM fields. These findings challenge the myth that underrepresented female minorities are less inclined to enter STEM fields. Logistic regression analyses revealed thirteen significant predictors of persistence for undergraduate women in STEM. Findings showed that undergraduate women who were younger, more academically prepared, and academically and socially involved in college (e.g., lived on campus, interacted with faculty, participated in study groups, fine arts activities, and school sports) were more likely to persist in STEM

  9. Undergraduate students' perceived academic environmental ...

    African Journals Online (AJOL)

    This study examined the relationship between undergraduates' perception of the academic environment, their attitude to academic work and achievement. A total of 348 undergraduates who formed the sample were drawn from five departments in three universities in Nigeria. The study revealed that four dimensions of the ...

  10. Researching Undergraduate Social Science Research

    Science.gov (United States)

    Rand, Jane

    2016-01-01

    The experience(s) of undergraduate research students in the social sciences is under-represented in the literature in comparison to the natural sciences or science, technology, engineering and maths (STEM). The strength of STEM undergraduate research learning environments is understood to be related to an apprenticeship-mode of learning supported…

  11. Undergraduate Students' Information Search Practices

    Science.gov (United States)

    Nikolopoulou, Kleopatra; Gialamas, Vasilis

    2011-01-01

    This paper investigates undergraduate students' information search practices. The subjects were 250 undergraduate students from two university departments in Greece, and a questionnaire was used to document their search practices. The results showed that the Web was the primary information system searched in order to find information for…

  12. Matrix groups for undergraduates

    CERN Document Server

    Tapp, Kristopher

    2016-01-01

    Matrix groups touch an enormous spectrum of the mathematical arena. This textbook brings them into the undergraduate curriculum. It makes an excellent one-semester course for students familiar with linear and abstract algebra and prepares them for a graduate course on Lie groups. Matrix Groups for Undergraduates is concrete and example-driven, with geometric motivation and rigorous proofs. The story begins and ends with the rotations of a globe. In between, the author combines rigor and intuition to describe the basic objects of Lie theory: Lie algebras, matrix exponentiation, Lie brackets, maximal tori, homogeneous spaces, and roots. This second edition includes two new chapters that allow for an easier transition to the general theory of Lie groups. From reviews of the First Edition: This book could be used as an excellent textbook for a one semester course at university and it will prepare students for a graduate course on Lie groups, Lie algebras, etc. … The book combines an intuitive style of writing w...

  13. Guidelines for the undergraduate psychology major: Version 2.0.

    Science.gov (United States)

    2016-01-01

    The APA Guidelines for the Undergraduate Psychology Major: Version 2.0 (henceforth Guidelines 2.0; APA, 2013) represents a national effort to describe and develop high-quality undergraduate programs in psychology. The task force charged with the revision of the original guidelines for the undergraduate major examined the success of the document's implementation and made changes to reflect emerging best practices and to integrate psychology's work with benchmarking scholarship in higher education. Guidelines 2.0 abandoned the original distinction drawn between psychology-focused skills and psychology skills that enhance liberal arts development. Instead, Guidelines 2.0 describes five inclusive goals for the undergraduate psychology major and two developmental levels of student learning outcomes. Suggestions for assessment planning are provided for each of the five learning goals. (c) 2016 APA, all rights reserved).

  14. Sustainable Fashion Tailoring: An approach for creating a\\ud heightened emotional attachment to garment apparel at\\ud undergraduate level, through pedagogy, story telling, digital\\ud technologies and traditional craftsmanship.

    OpenAIRE

    Morrish, David

    2017-01-01

    Background: \\ud \\ud Higher Education undergraduate programmes of study have a responsibility to educate learners within their discipline bridging the gap between further education and industry. Never before has it been so important to equip students who can adapt and accommodate change within their practice responding to external socio-economic, cultural, political and environmental issues. With sustainability a key issue, high on companies agendas, it is imperative that educational instituti...

  15. The Relationship between Hope, Eustress, Self-Efficacy, and Life Satisfaction among Undergraduates

    Science.gov (United States)

    O'Sullivan, Geraldine

    2011-01-01

    The construct of eustress was studied alongside hope and self-efficacy, to explore how these constructs are related to life satisfaction among undergraduates. Questionnaires were administered to undergraduates to test the hypotheses that (1) as eustress levels increase, so will life satisfaction levels; (2) when eustress, hope, and self-efficacy…

  16. Preparação de argila modificada com cloreto de cetilpiridíneo e avaliação da interação desta com o PVC Preparation of modified clay with cetylpyridinium chloride and evaluation of their interaction with PVC

    Directory of Open Access Journals (Sweden)

    Daniel K. Resende

    2010-09-01

    Full Text Available Foi preparada uma argila modificada com cloreto de cetilpiridíneo a partir da argila sódica por troca de cátions em solução. Foi avaliada a quantidade de agente de modificação em relação à argila sódica e o tempo reacional. Os materiais obtidos foram caracterizados por difração de raio X (XRD, análise termogravimétrica (TGA e ressonância magnética nuclear (RMN de baixo campo. Após a caracterização foi confirmada a modificação da argila e, também, foi verificado que o produto obtido pode ser empregado na preparação de nanocompósitos de PVC, considerando que o início da degradação do material preparado ocorreu em temperatura superior às comumente utilizadas no processamento do polímero. A adição da argila modificada apresentou uma dispersão adequada no PVC e manteve o início da degradação do material em temperatura compatível com o processamento do polímero, gerando um nanocompósito com parte esfoliada e intercalada.A modified silicate with cetylpyridinium was prepared from sodium clay with cation exchange in solution. The amount of modification agent for clay and the reaction time were evaluated. The materials produced were characterized using X ray diffraction (XRD, termogravimetric analysis (TGA and low field nuclear magnetic resonance (NMR. The formation of new organic clay was confirmed, which was introduced in PVC for the formation of nanocomposites. The beginning of degradation of the new clay occurred at temperatures higher than commonly used in the processing of PVC. The nanocomposites were partially exfoliated and partially intercalated.

  17. perception of undergraduates of undergraduates' about computer

    African Journals Online (AJOL)

    eobe

    right and wrong in human puter ethics are the ... lications of artificial intelligence and. ; and workplace ... resources to improve the quality of education at all levels but ... are being provided to teachers and students to utilize these resources ...

  18. Developing Effective Undergraduate Research Experience

    Science.gov (United States)

    Evans, Michael; Ilie, Carolina C.

    2011-03-01

    Undergraduate research is a valuable educational tool for students pursuing a degree in physics, but these experiences can become problematic and ineffective if not handled properly. Undergraduate research should be planned as an immersive learning experience in which the student has the opportunity to develop his/her skills in accordance with their interests. Effective undergraduate research experiences are marked by clear, measurable objectives and frequent student-professor collaboration. These objectives should reflect the long and short-term goals of the individual undergraduates, with a heightened focus on developing research skills for future use. 1. Seymour, E., Hunter, A.-B., Laursen, S. L. and DeAntoni, T. (2004), ``Establishing the benefits of research experiences for undergraduates in the sciences: First findings from a three-year study''. Science Education, 88: 493--534. 2. Behar-Horenstein, Linda S., Johnson, Melissa L. ``Enticing Students to Enter Into Undergraduate Research: The Instrumentality of an Undergraduate Course.'' Journal of College Science Teaching 39.3 (2010): 62-70.

  19. Understanding undergraduate student perceptions of mental health, mental well-being and help-seeking behaviour

    OpenAIRE

    Laidlaw, Anita Helen; McLellan, Julie; Ozakinci, Gozde

    2016-01-01

    Funding: Medical School, University of St Andrews Despite relatively high levels of psychological distress, many students in higher education do not seek help for difficulties. This study explored undergraduate student understanding of the concepts of mental health and mental well-being and where undergraduate students would seek help for mental well-being difficulties. Semi-structured interviews were carried out with 20 undergraduate students from 5 different subject areas. Interviews wer...

  20. Developing Digital Technologies for Undergraduate University Mathematics

    DEFF Research Database (Denmark)

    Triantafyllou, Eva; Timcenko, Olga

    2013-01-01

    Our research effort presented in this paper relates with developing digital tools for mathematics education at undergraduate university level. It focuses specifically on studies where mathematics is not a core subject but it is very important in order to cope with core subjects. For our design, we...... requirements for the development of digital tools that support mathematics teaching and learning at university level....... during lectures and exercise time. During these observations we were able to investigate how the applets were used in practice but also to get insight in the challenges that the students face during mathematics learning. These findings together with student feedback inspire the next round of design...

  1. Integrated Factors Correlating Undergraduate Academic ...

    African Journals Online (AJOL)

    Integrated Factors Correlating Undergraduate Academic Achievement in Bayelsa State, Nigeria. ... AFRREV IJAH: An International Journal of Arts and Humanities ... Thus, it is study investigated the integrated factors determining academic performance of students in public secondary schools in Bayelsa State, Nigeria.

  2. Undergraduate paramedic students cannot do drug calculations

    Science.gov (United States)

    Eastwood, Kathryn; Boyle, Malcolm J; Williams, Brett

    2012-01-01

    BACKGROUND: Previous investigation of drug calculation skills of qualified paramedics has highlighted poor mathematical ability with no published studies having been undertaken on undergraduate paramedics. There are three major error classifications. Conceptual errors involve an inability to formulate an equation from information given, arithmetical errors involve an inability to operate a given equation, and finally computation errors are simple errors of addition, subtraction, division and multiplication. The objective of this study was to determine if undergraduate paramedics at a large Australia university could accurately perform common drug calculations and basic mathematical equations normally required in the workplace. METHODS: A cross-sectional study methodology using a paper-based questionnaire was administered to undergraduate paramedic students to collect demographical data, student attitudes regarding their drug calculation performance, and answers to a series of basic mathematical and drug calculation questions. Ethics approval was granted. RESULTS: The mean score of correct answers was 39.5% with one student scoring 100%, 3.3% of students (n=3) scoring greater than 90%, and 63% (n=58) scoring 50% or less, despite 62% (n=57) of the students stating they ‘did not have any drug calculations issues’. On average those who completed a minimum of year 12 Specialist Maths achieved scores over 50%. Conceptual errors made up 48.5%, arithmetical 31.1% and computational 17.4%. CONCLUSIONS: This study suggests undergraduate paramedics have deficiencies in performing accurate calculations, with conceptual errors indicating a fundamental lack of mathematical understanding. The results suggest an unacceptable level of mathematical competence to practice safely in the unpredictable prehospital environment. PMID:25215067

  3. Undergraduate paramedic students cannot do drug calculations.

    Science.gov (United States)

    Eastwood, Kathryn; Boyle, Malcolm J; Williams, Brett

    2012-01-01

    Previous investigation of drug calculation skills of qualified paramedics has highlighted poor mathematical ability with no published studies having been undertaken on undergraduate paramedics. There are three major error classifications. Conceptual errors involve an inability to formulate an equation from information given, arithmetical errors involve an inability to operate a given equation, and finally computation errors are simple errors of addition, subtraction, division and multiplication. The objective of this study was to determine if undergraduate paramedics at a large Australia university could accurately perform common drug calculations and basic mathematical equations normally required in the workplace. A cross-sectional study methodology using a paper-based questionnaire was administered to undergraduate paramedic students to collect demographical data, student attitudes regarding their drug calculation performance, and answers to a series of basic mathematical and drug calculation questions. Ethics approval was granted. The mean score of correct answers was 39.5% with one student scoring 100%, 3.3% of students (n=3) scoring greater than 90%, and 63% (n=58) scoring 50% or less, despite 62% (n=57) of the students stating they 'did not have any drug calculations issues'. On average those who completed a minimum of year 12 Specialist Maths achieved scores over 50%. Conceptual errors made up 48.5%, arithmetical 31.1% and computational 17.4%. This study suggests undergraduate paramedics have deficiencies in performing accurate calculations, with conceptual errors indicating a fundamental lack of mathematical understanding. The results suggest an unacceptable level of mathematical competence to practice safely in the unpredictable prehospital environment.

  4. Estimativa do teor de argila e do potássio trocável em solos esparsamente amostrados no sul do estado de Mato Grosso

    Directory of Open Access Journals (Sweden)

    E. G. Couto

    2000-03-01

    Full Text Available A determinação da distribuição espacial de propriedades do solo é importante para entender as limitações para a nutrição de plantas e estabelecer o manejo apropriado do recurso solo em áreas recentemente incorporadas ao uso agrícola, principalmente onde os levantamentos de solos disponíveis são do tipo exploratório. Como modelo de estudo, este trabalho enfoca a variabilidade espacial do teor de argila (At e do teor de potássio trocável (Kt por meio de semivariogramas em amostras de solos coletadas em julho de 1994, no sul do estado de Mato Grosso. Métodos geoestatísticos foram usados para descrever a variabilidade espacial e para estimar estas propriedades ao longo de dois transectos cortando diferentes unidades de mapeamento de solos. A técnica de interpolação por Krigagem ordinária estimou apropriadamente os valores em áreas não amostradas, além de identificar os locais onde as amostragens de solos devem-se concentrar nos futuros trabalhos de levantamentos de solos. Os atributos estudados foram influenciados principalmente pelas diferentes classes de solo e apresentaram moderada dependência espacial e anisotropia no horizonte estudado. Levantamentos para avaliar a fertilidade dos solos e informações provenientes de mapas de solos podem ser analisados, por métodos geoestatísticos, pelas instituições de planejamento e assistência técnica, para complementar informações para o planejamento do uso da terra, como também para estimar indicadores da qualidade do solo com base nos princípios da sustentabilidade das terras. Parâmetros dos semivariogramas de At e Kt associados às classes de solos podem ser usados para reduzir o esforço de amostragem destes atributos na área estudada. O uso das informações dos levantamentos de solos permitiu reduzir o esforço de amostragem para a At, em até cerca de sete vezes.

  5. An Undergraduate Research Experience that Integrates Traditional Field Mapping, LiDAR, and 3D Numerical Modeling: Applying Lessons from a Recent Report from the National Academies of Sciences, Engineering, and Medicine in an Intermediate-Level Tectonic Landscapes Course

    Science.gov (United States)

    Reinen, L. A.; Brenner, K.

    2017-12-01

    Ongoing efforts to improve undergraduate education in science, technology, engineering, and mathematics (STEM) fields focus on increasing active student participation and decreasing traditional lecture-based teaching. Undergraduate research experiences (UREs), which engage students in the work of STEM professionals, are an example of these efforts. A recent report from the National Academies of Sciences, Engineering and Medicine (Undergraduate Research Experiences for STEM Students: Successes, Challenges, and Opportunities; 2017) provides characteristics of UREs, and indicates that participation in UREs increases student interest and persistence in STEM as well as provides opportunities to broaden student participation in these fields. UREs offer an excellent opportunity to engage students in research using the rapidly evolving technologies used by STEM professionals. In the fall of 2016, students in the Tectonic Landscapes class at Pomona College participated in a course-based URE that combined traditional field mapping methods with analysis of high-resolution topographic data (LiDAR) and 3D numerical modeling to investigate questions of active local faulting. During the first ten weeks students developed skills in: creation of fault maps from both field observations (GPS included) and high-resolution digital elevation models (DEMs), assessment of tectonic activity through analyses of DEMs of hill slope diffusion models and geomorphic indices, and evaluation of fault geometry hypotheses via 3D elastic modeling. Most of these assignments were focused on a single research site. While students primarily used Excel, ArcMap, and Poly3D, no previous knowledge of these was required or assumed. Through this iterative approach, students used increasingly more complex methods as well as gained greater ownership of the research process with time. The course culminated with a 4-week independent research project in which each student investigated a question of their own

  6. Statistics anxiety among undergraduate students in the faculty of ...

    African Journals Online (AJOL)

    The purpose of the study was to determine the level of statistics anxiety among undergraduate students, and whether the level of influenced by factor e.g gender and age. A sample of 100 third year students who enrolled for basic statistics in the University of Calabar was used for the study. A series of t-tests revealed that the ...

  7. Defining Quality in Undergraduate Education

    Directory of Open Access Journals (Sweden)

    Alison W. Bowers

    2018-01-01

    Full Text Available Objectives: This research brief explores the literature addressing quality in undergraduate education to identify what previous research has said about quality and to offer future directions for research on quality in undergraduate education. Method: We conducted a scoping review to provide a broad overview of existing research. Using targeted search terms in academic databases, we identified and reviewed relevant academic literature to develop emergent themes and implications for future research. Results: The exploratory review of the literature revealed a range of thoughtful discussions and empirical studies attempting to define quality in undergraduate education. Many publications highlighted the importance of including different stakeholder perspectives and presented some of the varying perceptions of quality among different stakeholders. Conclusions: While a number of researchers have explored and written about how to define quality in undergraduate education, there is not a general consensus regarding a definition of quality in undergraduate education. Past research offers a range of insights, models, and data to inform future research. Implication for Theory and/or Practice: We provide four recommendations for future research to contribute to a high quality undergraduate educational experience. We suggest more comprehensive systematic reviews of the literature as a next step.

  8. Obtenção de argilas organofílicas purificadas através de tensoativos iônicos e não iônicos visando uso em fluidos de perfuração base óleo Getting purified organoclays by ionic and non-ionic surfactant aiming use in oil based drilling fluids

    Directory of Open Access Journals (Sweden)

    J. M. R. Costa

    2012-12-01

    Full Text Available Em perfurações de petróleo sensíveis ao contato com água, torna-se necessária a utilização de fluidos de perfuração base óleo. Nestes casos, utilizam-se argilas organofílicas, que são obtidas a partir de argilas bentoníticas purificadas e tratadas com a adição de tensoativos. A utilização do hidrociclone pode representar uma ferramenta eficiente e de custo acessível para purificar argilas naturais em escala industrial. Este trabalho tem por objetivo estudar a purificação de argilas bentoníticas utilizando-se um hidrociclone, visando o desenvolvimento de argilas organofílicas para uso em fluidos de perfuração base óleo. As caracterizações das amostras das argilas estudadas - Brasgel PA e Chocolate - foram efetuadas por meio das técnicas: análise granulométrica por difração de laser, difração de raios X (DRX e análise química por fluorescência de raios X. A caracterização das argilas organofílicas obtidas foi efetuada por meio dos seguintes métodos: DRX e por uma modificação do inchamento de Foster. Os resultados mostram que o processo de purificação foi eficiente na redução de impurezas presentes na bentonita e que a argila organofílica purificada tratada com Praepagen WB e Imidazolina Oléica Vegetal apresenta valores de inchamento de Foster em éster, óleo diesel e parafina superiores aos obtidos com argilas organofílicas sem purificação (natural, e evidenciando maior afinidade com o tensoativo Praepagen WB.Oil drilling in sensitive contact with water, becomes required the use of oil base drilling fluids. In these cases, organoclays are used, which are made from clay bentonite purified and treated with surfactants addition. The use of the hydrocyclone can be a effective tool and affordable for purifying clays in industrial scale. This work aims to study the purification of clays bentonite using a hydrocyclone, aiming to develop organoclays for use in oil base drilling fluids. The

  9. Análise da influência do tratamento de purificação no comportamento de inchamento de argilas organofílicas em meios não aquosos Analysis of the influence of the purification treatment on the swelling behavior in non-aqueous media of organophilic clays

    Directory of Open Access Journals (Sweden)

    H. S. Ferreira

    2008-03-01

    Full Text Available As argilas bentonitas possuem importantes funções em fluidos de perfuração não aquosos. No entanto, impurezas presentes na argila e a escolha inadequada do sal quaternário utilizado no seu processo de organofilização podem comprometer a compatibilidade do sistema argila-fluido. Assim, este trabalho tem por objetivo analisar a influência do tratamento de purificação e dos sais quaternários de amônio no comportamento de inchamento de argilas organofílicas em meios não aquosos. A argila bentonita foi purificada através de procedimento de sedimentação e as argilas organofílicas foram preparadas utilizando-se cloreto de alquil benzil amônio (Dodigen, cloreto de diestearil dimetil amônio (Praepagen, cloreto de cetil trimetil amônio (Genamim e brometo de cetil trimetil amônio (Cetremide. As argilas organofilizadas foram caracterizadas por difração de raios X e determinação da distribuição do tamanho de partículas e, em seguida, submetidas ao ensaio de inchamento de Foster em éster, parafina e óleo diesel. Os resultados mostram que o processo de purificação foi eficiente na redução de impurezas presentes na bentonita e que a argila organofílica purificada tratada com Praepagen e Genamim apresenta valores de inchamento de Foster em éster, óleo diesel e parafina superiores aos obtidos com argilas organofílicas sem purificação (natural e comercial.Bentonite clays play important roles in oil based drilling fluids. However, clay impurities and the wrong choose of the quaternary ammonium salt used in the organophilization process can lead to organoclay-fluid low interactions. Thus, this work has as aim study the influence of the purification process and quaternary ammonium salts on the swelling behavior in oil media of organophilic clays. The bentonite clay was purified using a sedimentation process and organoclay were prepared using alkyl dimethyl benzyl ammonium chloride (Dodigen, distearyl dimethyl ammonium

  10. The Undergraduate ALFALFA Team: A Model for Involving Undergraduates in Major Legacy Astronomy Research

    Science.gov (United States)

    Troischt, Parker; Koopmann, Rebecca A.; Haynes, Martha P.; Higdon, Sarah; Balonek, Thomas J.; Cannon, John M.; Coble, Kimberly A.; Craig, David; Durbala, Adriana; Finn, Rose; Hoffman, G. Lyle; Kornreich, David A.; Lebron, Mayra E.; Crone-Odekon, Mary; O'Donoghue, Aileen A.; Olowin, Ronald Paul; Pantoja, Carmen; Rosenberg, Jessica L.; Venkatesan, Aparna; Wilcots, Eric M.; Alfalfa Team

    2015-01-01

    The NSF-sponsored Undergraduate ALFALFA (Arecibo Legacy Fast ALFA) Team (UAT) is a consortium of 19 institutions founded to promote undergraduate research and faculty development within the extragalactic ALFALFA HI blind survey project and follow-up programs. The collaborative nature of the UAT allows faculty and students from a wide ​range of public and private colleges and especially those with small astronomy programs to develop scholarly collaborations. Components of the program include an annual undergraduate workshop at Arecibo Observatory, observing runs at Arecibo, computer infrastructure, summer and academic year research projects, and dissemination at national meetings (e.g., Alfvin et al., Martens et al., Sanders et al., this meeting). Through this model, faculty and students are learning how science is accomplished in a large collaboration while contributing to the scientific goals of a major legacy survey. In the 7 years of the program, 23 faculty and more than 220 undergraduate students have participated at a significant level. 40% of them have been women and members of underrepresented groups. Faculty, many of whom were new to the collaboration and had expertise in other fields, contribute their diverse sets of skills to ALFALFA ​related projects via observing, data reduction, collaborative research, and research with students. 142 undergraduate students have attended the annual workshops at Arecibo Observatory, interacting with faculty, graduate students, their peers, and Arecibo staff in lectures, group activities, tours, and observing runs. Team faculty have supervised 131 summer research projects and 94 academic year (e.g., senior thesis) projects. 62 students have traveled to Arecibo Observatory for observing runs and 46 have presented their results at national meetings. 93% of alumni are attending graduate school and/or pursuing a career in STEM. Half of those pursuing graduate degrees in Physics or Astronomy are women. This work has been

  11. Undergraduate medical education.

    Science.gov (United States)

    Rees, L; Wass, J

    1993-01-23

    Pressures from students and teachers, from professional bodies, and from changes in the way health care is delivered are all forcing a rethink of how medical students should be taught. These pressures may be more intense in London but are not confined to it. The recommendation the Tomlinson report advocates that has been generally welcomed is for more investment in primary care in London. General practitioners have much to teach medical schools about effective ways of learning, but incentives for teaching students in general practice are currently low, organising such teaching is difficult and needs resources, and resistance within traditional medical school hierarchies needs to be overcome. Likewise, students value learning within local communities, but the effort demanded of public health departments and community organisations is great at a time when they are under greater pressure than ever before. The arguments over research that favour concentration in four multifaculty schools are less clear cut for undergraduate education, where personal support for students is important. An immediate concern is that the effort demanded for reorganising along the lines suggested by Tomlinson will not leave medical schools much energy for innovating.

  12. Panorama da Pesquisa Acadêmica Brasileira em Nanocompósitos Polímero/Argila e Tendências para o Futuro Scenario of the Brazilian Academic Research into Nanocomposites Polymer/Clay and Trends for the Future

    Directory of Open Access Journals (Sweden)

    Priscila Anadão

    2011-01-01

    Full Text Available A pesquisa em nanocompósitos polímero/argila foi iniciada pela Toyota no final dos anos 80. A partir deste marco, a comunidade científica mundial voltou sua atenção para este tipo de material graças às propriedades mecânicas, químicas e térmicas avançadas em comparação com os compósitos tradicionais. Não foi diferente no Brasil, tal atenção pode ser comprovada pelos inúmeros trabalhos científicos sobre nanocompósitos que começaram a despontar no início do século XXI. Assim, o presente artigo objetiva, após discorrer sobre as definições que concernem nanocompósitos polímero/argila, apresentar as pesquisas científicas brasileiras em nanocompósitos de polímeros de uso geral, de polímeros de engenharia e de outros tipos de polímeros, relacionando-os com o método de produção empregado, morfologia final e propriedades decorrentes da formação de nanocompósitos. Por fim, o mapa da pesquisa brasileira em nanocompósitos polímero/argila e sua perspectiva para o futuro são apresentados.The research on polymer/clay nanocomposites was initiated by Toyota in the late 80s. From then on, the world scientific community has turned its attention to this type of material due to the enhanced mechanical, chemical and thermal properties in comparison to traditional composites. In Brazil, it was not different, as can be seen from the countless scientific works on nanocomposites which have emerged in the early 21th century. The aim thus is, after discussing the definitions related to the polymer/ clay nanocomposites, to show Brazilian scientific works on the general use of plastics, engineering plastics and other types of polymers, correlating them with their production method, final morphology and resulting properties. Finally, a map of the Brazilian research into polymer/clay nanocomposites and their future perspective are presented.

  13. Understanding Undergraduate Student Perceptions of Mental Health, Mental Well-Being and Help-Seeking Behaviour

    Science.gov (United States)

    Laidlaw, Anita; McLellan, Julie; Ozakinci, Gozde

    2016-01-01

    Despite relatively high levels of psychological distress, many students in higher education do not seek help for difficulties. This study explored undergraduate student understanding of the concepts of mental health and mental well-being and where undergraduate students would seek help for mental well-being difficulties. Semi-structured interviews…

  14. Undergraduates' Attitudes toward Dating Violence: Its Relationship with Sexism and Narcissism

    Science.gov (United States)

    Erdem, Ahmet; Sahin, Rukiye

    2017-01-01

    In this research, whether the undergraduates' attitude levels towards the dating violence differed in terms of gender, dating relationship status, being exposed to the dating violence and resorting to the dating violence was investigated. The sample of the study was composed of 1171 undergraduates. In the research, "The Attitudes toward…

  15. Interdisciplinary Collaborative Learning: Using Decision Analysts to Enhance Undergraduate International Management Education

    Science.gov (United States)

    Palocsay, Susan W.; White, Marion M.; Zimmerman, D. Kent

    2004-01-01

    This article describes an experiential learning activity designed to promote the development of decision-making skills in international management students at the undergraduate level. Students from an undergraduate management science course in decision analysis served as consultants on a case assigned to teams in an international management class.…

  16. Academic program models for undergraduate biomedical engineering.

    Science.gov (United States)

    Krishnan, Shankar M

    2014-01-01

    There is a proliferation of medical devices across the globe for the diagnosis and therapy of diseases. Biomedical engineering (BME) plays a significant role in healthcare and advancing medical technologies thus creating a substantial demand for biomedical engineers at undergraduate and graduate levels. There has been a surge in undergraduate programs due to increasing demands from the biomedical industries to cover many of their segments from bench to bedside. With the requirement of multidisciplinary training within allottable duration, it is indeed a challenge to design a comprehensive standardized undergraduate BME program to suit the needs of educators across the globe. This paper's objective is to describe three major models of undergraduate BME programs and their curricular requirements, with relevant recommendations to be applicable in institutions of higher education located in varied resource settings. Model 1 is based on programs to be offered in large research-intensive universities with multiple focus areas. The focus areas depend on the institution's research expertise and training mission. Model 2 has basic segments similar to those of Model 1, but the focus areas are limited due to resource constraints. In this model, co-op/internship in hospitals or medical companies is included which prepares the graduates for the work place. In Model 3, students are trained to earn an Associate Degree in the initial two years and they are trained for two more years to be BME's or BME Technologists. This model is well suited for the resource-poor countries. All three models must be designed to meet applicable accreditation requirements. The challenges in designing undergraduate BME programs include manpower, facility and funding resource requirements and time constraints. Each academic institution has to carefully analyze its short term and long term requirements. In conclusion, three models for BME programs are described based on large universities, colleges, and

  17. Introduction to Computational Physics for Undergraduates

    Science.gov (United States)

    Zubairi, Omair; Weber, Fridolin

    2018-03-01

    This is an introductory textbook on computational methods and techniques intended for undergraduates at the sophomore or junior level in the fields of science, mathematics, and engineering. It provides an introduction to programming languages such as FORTRAN 90/95/2000 and covers numerical techniques such as differentiation, integration, root finding, and data fitting. The textbook also entails the use of the Linux/Unix operating system and other relevant software such as plotting programs, text editors, and mark up languages such as LaTeX. It includes multiple homework assignments.

  18. Integrating delegation into the undergraduate curriculum.

    Science.gov (United States)

    Saccomano, Scott J; Zipp, Genevieve Pinto

    2014-01-01

    One of the essential practice skills for registered nurses (RNs) is the delegation of tasks. However, few experiences in RN educational programs directly address the development of delegation skills. Many RNs report not feeling confident in their ability to delegate appropriately upon completing their educational programs. Nurse educators must respond to the need to address delegation in undergraduate nursing curricula. This article describes research evaluating levels of knowledge of and confidence in the delegation process among newly graduated RNs, and explores options for teachable moments about delegation.

  19. Efeito da adição de fonolito na sinterização de argila caulinítica Effect of phonolite addition on sintering kaolinitic clay

    Directory of Open Access Journals (Sweden)

    P. M. Andrade

    2005-12-01

    Full Text Available Este trabalho tem por objetivo avaliar o comportamento de queima de uma argila caulinítica incorporada com fonolito visando à obtenção de revestimento cerâmico prensado do tipo semiporoso. Foram preparadas composições com adição de fonolito a uma argila caulinítica nas proporções de 20 e 40% em peso. Para efeito comparativo, avaliou-se uma massa cerâmica industrial proveniente do pólo cerâmico de Santa Gertrudes. Foram preparados corpos de prova cilíndricos por prensagem uniaxial a 25 MPa para queima em temperaturas variando de 1050 a 1200 ºC. Nas amostras queimadas, foram realizados ensaios tecnológicos para determinação da retração linear e absorção de água em função da temperatura de queima. A avaliação microestrutural das composições estudadas foi realizada por difração de raios X e microscopia eletrônica de varredura. Os resultados mostraram que a adição de fonolito melhora significativamente a sinterização da argila caulinítica, sobretudo, em temperaturas acima de 1150 ºC, onde ocorre uma redução brusca da porosidade. Apesar do maior teor de óxidos alcalinos em comparação com uma massa industrial de revestimento cerâmico, as misturas argila/fonolito só alcançaram uma absorção de água de 10% , máxima para revestimentos semiporosos, em temperaturas cerca de 80 ºC superior à massa industrial.This work had as its objective to evaluate the firing behavior of a kaolinitic clay incorporated with phonolite aiming at semiporous pressed ceramic tiles. Compositions were prepared with addition of 20 and 40 wt.% of phonolite to a kaolinitic clay. For comparison, an industrial ceramic body from Santa Gertrudes, State of S. Paulo, was also evaluated. Cylindrical specimens were prepared by uniaxial pressure at 25 MPa followed by firing at temperatures varying from 1050 to 1200 ºC. The fired specimens were submitted to the following tests: linear shrinkage and water absorption as function of the firing

  20. Learning styles of postgraduate and undergraduate medical students.

    Science.gov (United States)

    Shukr, Irfan; Zainab, Roop; Rana, Mowadat H

    2013-01-01

    To compare learning styles of undergraduate and postgraduate medical students. Observational, comparative study. Department of Medical Education, Army Medical College, NUST, Rawalpindi, Pakistan, during February and March 2012. A total of 170 students were divided into two equal groups of undergraduate students of Army Medical College, and postgraduate students of Armed Forces Post Graduate Medical Institute, Rawalpindi. Learning Style Questionnaire (LSQ) was used to assess and categorize the participants into Honey and Mumford classification of learning styles. The responses of each student ranging from 'very strong,' 'strong', 'moderate', and 'low' preference towards activist, theorist, reflector and pragmatist learning styles were compiled. The two groups were compared using SPSS version 17, using Fisher's exact test and the chi-square test. A p-value of $lt; 0.05 was considered significant. Preferences for all four learning styles were present in both groups. The results reveal an overall statistically significant difference in the 'very strong' preference in learning styles between the two study groups (p=0.002). Among the undergraduate students, 45% had a very strong preference for being an activist, whereas in postgraduate students, 38% had very strong preference for reflector, and 35% for theorist. This was statistically significant for activist, and reflector, and attained a p-value of learning style was pragmatist in both undergraduate and postgraduate students. Diversity of learning styles at undergraduate and postgraduate level of medical education calls for multiplicity of instructional and assessment modalities to match them. The learning styles amongst the undergraduate medical students are different from the postgraduates. The postgraduates commonly have the reflector learning style while the undergraduates are predominantly activists and theorists.

  1. American undergraduate students' value development during the Great Recession.

    Science.gov (United States)

    Park, Heejung; Twenge, Jean M; Greenfield, Patricia M

    2017-02-01

    The Great Recession's influence on American undergraduate students' values was examined, testing Greenfield's and Kasser's theories concerning value development during economic downturns. Study 1 utilised aggregate-level data to investigate (a) population-level value changes between the pre-recession (2004-2006: n = 824,603) and recession freshman cohort (2008-2010: n = 662,262) and (b) overall associations of population-level values with national economic climates over long-term periods by correlating unemployment rates and concurrent aggregate-level values across 1966-2015 (n = 10 million). Study 2 examined individual-level longitudinal value development from freshman to senior year, and whether the developmental trajectories differed between those who completed undergraduate education before the Great Recession (freshmen in 2002, n = 12,792) versus those who encountered the Great Recession during undergraduate years (freshmen in 2006, n = 13,358). Results suggest American undergraduate students' increased communitarianism (supporting Greenfield) and materialism (supporting Kasser) during the Great Recession. The recession also appears to have slowed university students' development of positive self-views. Results contribute to the limited literature on the Great Recession's influence on young people's values. They also offer theoretical and practical implications, as values of this privileged group of young adults are important shapers of societal values, decisions, and policies. © 2016 International Union of Psychological Science.

  2. Polyethersulfone/clay membranes and its water permeability; Membranas de polietersulfona/argila e sua permeabilidade a agua

    Energy Technology Data Exchange (ETDEWEB)

    Cavalho, Thamyres Cardoso de; Medeiros, Vanessa da Nobrega; Araujo, Edcleide Maria de; Lira, Helio Lucena, E-mail: thamyrescc@gmail.com, E-mail: vanismedeiros@gmail.com, E-mail: edcleide.araujo@ufcg.edu.br, E-mail: helio.lira@ufcg.edu.br [Universidade Federal de Campina Grande (UAEMa/CCT/UFCG), PB (Brazil). Unidade Academica de Engenharia de Materiais; Leite, Amanda Melissa Damiao, E-mail: amanda.leite@ect.ufrn.br [Universidade Federal do Rio Grande do Norte (ECT/UFRN), Natal, RN (Brazil). Escola de Ciencia e Tecnologia

    2017-04-15

    Membranes can be considered polymeric or inorganic films that function as a semipermeable barrier to filtration on a molecular scale, separating two phases and restricting, totally or partially, the transportation of one or more chemical species (solute) present in the solution. Therefore, the aim of this work is to produce polyethersulfone membranes (PES) and polyethersulfone/clay by phase inversion technique and evaluate the presence of clay in obtaining membranes for wastewater treatment. The used solvent was dimethylformamide (DMF) and clays were Brasgel PA (MMT) and Cloisite Na (CL Na) in the proportion of 3 to 5% (wt.). By Xray diffraction (XRD), the membranes with 3% of MMT and CL Na clays apparently had partially exfoliated structures. For the composition with 5% of CL Na a small peak was observed, which indicates that this is possibly an intercalated structure or microcomposite. By scanning electron microscopy (SEM), visualizes that the pure surface of the pure PES membrane a structure apparently without pores was observed in the used magnification and without roughness surface when compared to membranes with clay. The measurements of contact angle indicated that the inclusion of clay altered the wetting ability of the membranes. The flow with distilled water for all membranes started high and over time reached a stabilization level. Thus, it can be concluded that the presence and the content of clay altered the morphology of the membrane, contributing to an increase in water flow. (author)

  3. Nível de atividade física e tabagismo em universitários Nivel de actividad física y tabaquismo en universitarios Level of physical activity and smoking in undergraduate students

    Directory of Open Access Journals (Sweden)

    Elizângela Sofia Ribeiro Rodrigues

    2008-08-01

    muestra estudiada incluye 871 universitarios. Para evaluar el nivel de actividad física fue aplicado el cuestionario International Physical Activity Questionnaire-8. El consumo de tabaco fue evaluado por cuestionario modificado de la Organización Mundial de Salud y el grado de dependencia nicotínica de los fumantes por la escala de Fagerström. Las frecuencias, prevalencias y razones de prevalencia de tabaquismo y sedentarismo fueron determinadas aplicando el teste ji-cuadrado pelo método de Yates o el test exacto de Fisher, según grupo general y estratificadas por área, curso, turno y sexo, al nivel de significancia de 5%. RESULTADOS: La media de edad fue 25 (dp±8 años y la media de edad de la primera experiencia tabaquistica fue 17 (dp±4 años. La prevalencia de sedentarismo fue de 29,9% y de tabaquismo 7,2%. La prevalencia general de sedentarios fumantes fue de 8,5% y la de no-fumantes 91,5%; pero sin diferencia en la proporción de sedentarios entre fumantes y no-fumantes. Tabaquismo y sedentarismo fueron más prevalentes en individuos arriba de 25 años (48,6%, p0,05. CONCLUSIONES: Sedentarismo ocurre en fumantes y no-fumantes en la misma proporción, no indicando asociación entre esos dos factores. Las bajas prevalencias de sedentarismo y tabaquismo encontradas pueden estar asociadas a la actuación de programas nacionales, por la aplicación de medidas preventivas y educativas continuas, sendo necesario que sean mantenidas a largo plazo.OBJECTIVE: To evaluate the level of physical activity in undergraduate students and to investigate its potential association with smoking. METHODS: A cross-sectional study with a stratified sample proportional to the total number of students was carried out in Gurupi, Central-West Brazil, in 2005. The sample comprised 871 subjects. The IPAQ-8 short version was applied to assess the level of physical activity. Smoking status was evaluated by a modified World Health Organization (WHO questionnaire and the magnitude of

  4. Knowledge and Attitude Among Undergraduate Students, Burapha University in Becoming the ASEAN Member of Thailand

    Directory of Open Access Journals (Sweden)

    Chitapha Sookplam

    2017-12-01

    Full Text Available The findings show that media exposure about ASEAN, knowledge about ASEAN, attitude in becoming ASEAN member, and self-preparation for becoming ASEAN among undergraduate students’ Burapha University were in a medium level. The difference in college years and majors caused the statistically significant difference at 0.5. level of ASEAN media exposure. The difference in genders, college years, incomes and majors among the undergraduate students led to the statistically significant difference at 0.5 level of knowledge about ASEAN.The difference in genders, college years and majors in the undergraduates caused the statistically significant difference at 0.5 level regarding attitude about becoming ASEAN. The difference in college years, incomes, and majors in the undergraduates caused the statistically significant difference at 0.5 level of preparation for becoming ASEAN. The difference level of ASEAN media exposure among the undergraduates caused the statistically significant difference at 0.5 level of knowledge, attitude, and preparation for becoming ASEAN. The difference level of knowledge about ASEAN in the undergraduates caused the statistically significant difference at 0.5 levels of the attitude and preparation for becoming ASEAN member of Thailand.And it found that higher level of media exposure could lead to higher level knowledge about ASEAN; and then could cause better attitude and self-preparation toward becoming ASEAN member of Thailand.

  5. Water barrier properties of starch-clay nanocomposite films Propriedades de barreira à água de filmes de nanocompósitos de amido e argila

    Directory of Open Access Journals (Sweden)

    Aníbal Marcelo Slavutsky

    2012-09-01

    Full Text Available The functional properties of corn starch based films were improved by incorporating nanoclay (Montmorillonite. Nanoclay was incorporated in the polymer matrix using two different methodologies and the films were formed by casting. The effect of film preparation methodology and of the nanoclay concentration on the physicochemical properties of the films was studied. Depending on film preparation method used, intercalated or exfoliated nanocomposite films were obtained. The FTIR spectra showed a strong interaction between the montmorillonite and the starch molecules. Opacity was dependent on the nanoclay dispersion method used. Water vapor solubility and permeability decreased with increasing montmorillonite content and were affected by the dispersion method. Water diffusion was only dependent on the nanoclay content due to the increase in tortuosity of the diffusion path, caused by the nanoparticles. The results showed that the incorporation of 5% of montmorillonite using an adequate dispersion method, improved the water resistance and barrier properties of corn starch based films. Nanoparticles reduced the damage caused to the properties of these hydrophilic films by the increase in moisture content.As propriedades funcionais de filmes à base de amido de milho foram melhoradas pela incorporação de nanoargila (montmorilonita. Nanoargila foi incorporada na matriz polimérica por meio de duas metodologias diferentes e os filmes foram produzidos por casting. Os efeitos da metodologia de preparação e da concentração de nanoargila nas propriedades físico-químicas dos filmes foram estudados. Conforme os métodos de elaboração, filmes intercalados e esfoliados de nanocompósitos foram obtidos. Os espectros FTIR mostraram uma forte interação entre a argila montmorilonita e as moléculas de amido. A opacidade foi dependente do método utilizado para a dispersão da nanoargila. A solubilidade e a permeabilidade ao vapor de água diminu

  6. The Undergraduate ALFALFA Team: Outcomes for Over 250 Undergraduate Participants

    Science.gov (United States)

    Troischt, Parker; Koopmann, Rebecca A.; Haynes, Martha P.; ALFALFA Team

    2016-01-01

    The NSF-sponsored Undergraduate ALFALFA (Arecibo Legacy Fast ALFA) Team (UAT) is a consortium of 19 institutions founded to promote undergraduate research and faculty development within the extragalactic ALFALFA HI blind survey project and follow-up programs. In this talk we present outcomes for the more than 250 undergraduate students who have who have participated in the program during the 8 years of funding. 40% of these students have been women and members of underrepresented groups. To date 148 undergraduate students have attended annual workshops at Arecibo Observatory, interacting with faculty, graduate students, their peers, and Arecibo staff in lectures, group activities, tours, and observing runs. Team faculty have supervised 159 summer research projects and 120 academic year (e.g., senior thesis) projects. 68 students have traveled to Arecibo Observatory for observing runs and 55 have presented their results at national meetings such as the AAS. Through participation in the UAT, students are made aware of career paths they may not have previously considered. More than 90% of alumni are attending graduate school and/or pursuing a career in STEM. 42% of those pursuing graduate degrees in Physics or Astronomy are women. This work has been supported by NSF grants AST-0724918/0902211, AST-075267/0903394, AST-0725380, and AST-1211005

  7. Academic Resourcefulness, Coping Strategies and Doubting in University Undergraduates

    Science.gov (United States)

    Xuereb, Sharon

    2015-01-01

    This study hypothesised that academic resourcefulness and coping strategies would predict doubting amongst university undergraduates. Doubting refers to the serious consideration of prematurely withdrawing from university. It was predicted that mature students would report higher levels of academic resourcefulness and adaptive coping strategies,…

  8. Culture and gender as predictors of undergraduates' perception of ...

    African Journals Online (AJOL)

    Culture and gender as predictors of undergraduates' perception of gender roles. ... tasks as appropriate for women was found more among the southern female participants than the other three groups. The findings were attributed to differences in levels of urbanization, educational attainment of parents and cultural values.

  9. Can One Undergraduate Course Increase Cross-Cultural Competence?

    Science.gov (United States)

    Spitzer, Lois

    2015-01-01

    The majority of students who took this general education undergraduate course in developing cross-cultural understanding at a state college in the northeastern United States reported that their level of cross-cultural competence and global awareness increased by the end of the course. The primary course objective was to help students better…

  10. Economic Growth and Development in the Undergraduate Curriculum

    Science.gov (United States)

    Acemoglu, Daron

    2013-01-01

    A central theme of this article is that economics instructors should spend more time teaching about economic growth and development at the undergraduate level because the topic is of interest to students, is less abstract than other macroeconomic topics, and is the focus of exciting research in economics. Facts and data can be presented to…

  11. Developing Early Undergraduate Research at a Two-Year College

    Science.gov (United States)

    Sibbernsen, Kendra

    2013-01-01

    Two-year college (TYC) physics teachers are not often required to provide student research experiences as a part of their contracted duties. However, some TYC physics faculty members are interested in developing research opportunities for their freshman- and sophomore-level students, often called "early undergraduate research" (EUR).…

  12. The Undergraduate as Researcher: Selected Studies in Mass Communication.

    Science.gov (United States)

    Felsenthal, Norman A.

    Reporting on a group of class projects undertaken by a series of his college-level "Broadcasting and Society" courses, the author concludes that there is great value in encouraging undergraduates to do their own original research. Among the topics researched by the students are the effect of television on nuns, television news viewing habits of…

  13. What They Learned: Using Multimedia to Engage Undergraduates in Research

    Science.gov (United States)

    Artello, Kristine

    2014-01-01

    Today's employers seek high levels of creativity, communication, and critical thinking, which are considered essential skills in the workplace. Engaging undergraduate students in critical thinking is especially challenging in introductory courses. The advent of YouTube, inexpensive video cameras, and easy-to-use video editors provides…

  14. Greek Undergraduate Physical Education Students' Basic Computer Skills

    Science.gov (United States)

    Adamakis, Manolis; Zounhia, Katerina

    2013-01-01

    The purposes of this study were to determine how undergraduate physical education (PE) students feel about their level of competence concerning basic computer skills and to examine possible differences between groups (gender, specialization, high school graduation type, and high school direction). Although many students and educators believe…

  15. Perception of Undergraduates about Computer and Internet Ethics ...

    African Journals Online (AJOL)

    Computer and internet has brought innovative changes in education all over the world. In the universities of Pakistan, computer and IT related courses have recently been included as compulsory subjects in all disciplines at undergraduate level. Therefore, it was important to know the perceptual understanding and ...

  16. Good Undergraduate Dissertation Supervision: Perspectives of Supervisors and Dissertation Coordinators

    Science.gov (United States)

    Roberts, Lynne D.; Seaman, Kristen

    2018-01-01

    There is a paucity of research, training, and material available to support supervisors of undergraduate dissertation students. This article explores what "good" supervision might look like at this level. Interviews were conducted with eight new supervisors and six dissertation coordinators using a critical incident methodology. Thematic…

  17. What Do Undergraduate Course Syllabi Say about Information Literacy?

    Science.gov (United States)

    McGowan, Britt; Gonzalez, Melissa; Stanny, Claudia J.

    2016-01-01

    Librarians seek opportunities to improve outreach to faculty and promote shared interests in information literacy. A comprehensive review of syllabi for all undergraduate courses offered during one academic term examined course-level learning outcomes and graded assignments to see how well they aligned with the five Association of College and…

  18. Differences in Procrastination and Motivation between Undergraduate and Graduate Students

    Science.gov (United States)

    Cao, Li

    2012-01-01

    Procrastination became increasingly prevalent among students in recent years. However, little research was found that directly compares academic procrastination across different academic grade levels. The present study used a self-regulated learning perspective to compare procrastination types and associated motivation between undergraduate and…

  19. Current Practices in the Delivery of Undergraduate Exercise Physiology Content

    Science.gov (United States)

    Fisher, Michele M.

    2013-01-01

    The purpose of this study was to identify current practices for the delivery of exercise physiology content at the undergraduate level. An anonymous 22-item survey was sent to instructors of exercise physiology to collect information concerning the structure of course offerings and instructional practices. One hundred ten instructors responded to…

  20. Attitudes towards transferable skills in medical undergraduates.

    Science.gov (United States)

    Whittle, S R; Eaton, D G

    2001-02-01

    Changes to the style of medical teaching will place a greater responsibility on individual medical students to manage their own learning, highlighting the need for students to develop good so-called 'transferable' skills at an early stage in their undergraduate career. To assess the attitudes of first year undergraduates towards transferable skills, and investigate the gender difference in these attitudes. To assess the contribution of their first year course to skills development. First year students, enrolled on a traditional-style course. A questionnaire asking the students to consider: (a) the importance of named transferable skills for medicine; (b) their own ability in these areas; and (c) the influence of their first year course. All students, irrespective of gender, regarded transferable skills as very important to medicine, rating organizational skills and self-learning skills as most important. Overall, students have a high level of confidence in their own skills. Male students rated their overall level of skills more highly than women. In particular they rated their information handling, managing self-learning and technical skills more highly. Students feel that their first year course has enhanced their skills in most areas. Our results suggest that students will feel equipped to succeed in a learning system which places the onus on them to take responsibility for their own learning. They clearly believe that they have the necessary skills for independent learning. The study highlights the need to enhance students' self-evaluation skills.

  1. Advanced undergraduate quantum mechanics methods and applications

    CERN Document Server

    Deych, Lev I

    2018-01-01

    This introduction to quantum mechanics is intended for undergraduate students of physics, chemistry, and engineering with some previous exposure to quantum ideas. Following in Heisenberg’s and Dirac’s footsteps, this book is centered on the concept of the quantum state as an embodiment of all experimentally available information about a system, and its representation as a vector in an abstract Hilbert space. This conceptual framework and formalism are introduced immediately, and developed throughout the first four chapters, while the standard Schrödinger equation does not appear until Chapter 5. The book grew out of lecture notes developed by the author over fifteen years of teaching at the undergraduate level. In response to numerous requests by students, material is presented with an unprecedented level of detail in both derivation of technical results and discussion of their physical significance.  The book is written for students to enjoy reading it, rather than to use only as a source of formulas a...

  2. Undergraduate Chemistry Education: A Workshop Summary

    Science.gov (United States)

    Sawyer, Keegan; Alper, Joe

    2014-01-01

    "Undergraduate Chemistry Education" is the summary of a workshop convened in May 2013 by the Chemical Science Roundtable of the National Research Council to explore the current state of undergraduate chemistry education. Research and innovation in undergraduate chemistry education has been done for many years, and one goal of this…

  3. Caracterização da argila bentonítica para utilização na remoção de chumbo de efluentes sintéticos Characterization of smectite clays for application in the removal of lead from synthetic effluents

    Directory of Open Access Journals (Sweden)

    M. G. F. Rodrigues

    2004-09-01

    Full Text Available Este artigo tem como principal objetivo caracterizar argilas esmectíticas chocolate de Boa-Vista, Estado da Paraíba (Brasil na sua forma natural e após tratamento químico, visando a sua utilização na remoção de Pb2+ de efluentes sintéticos. Os métodos de caracterização utilizados foram fluorescência de raios X, difração de raios X, microscopia eletrônica de varredura e espectroscopia de raios X por energia dispersiva. Neste trabalho foi estabelecido o procedimento para remoção de Pb2+ a partir de um efluente inorgânico sintético, utilizando argila natural. Para avaliar a influência dos principais parâmetros, como pH, tratamento e granulometria da argila sobre a remoção do Pb2+, foi utilizado o planejamento fatorial e os melhores resultados obtidos foram: pH 4,5, granulometria entre 35 e 48 mesh, e argila natural.The main objective of this paper is to characterize the Chocolate smectite clays of Boa-Vista, State of Paraíba (Brazil, in their natural form, and after chemical treatment for their application in the removal of Pb2+ from synthetic effluents. The following methods were used: X-ray fluorescence, X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy. In is work the procedures for Pb2+ removal from a synthetic inorganic effluent using a natural clay were established. To evaluate the influence of the main parameters, such as pH, clay treatment and granulometry, on Pb2+ removal, factorial planning was used and the best results obtained were pH 4.5, granulometry in the range of 35 to 48 mesh and natural clay.

  4. Undergraduate Biocuration: Developing Tomorrow's Researchers While Mining Today's Data.

    Science.gov (United States)

    Mitchell, Cassie S; Cates, Ashlyn; Kim, Renaid B; Hollinger, Sabrina K

    2015-01-01

    Biocuration is a time-intensive process that involves extraction, transcription, and organization of biological or clinical data from disjointed data sets into a user-friendly database. Curated data is subsequently used primarily for text mining or informatics analysis (bioinformatics, neuroinformatics, health informatics, etc.) and secondarily as a researcher resource. Biocuration is traditionally considered a Ph.D. level task, but a massive shortage of curators to consolidate the ever-mounting biomedical "big data" opens the possibility of utilizing biocuration as a means to mine today's data while teaching students skill sets they can utilize in any career. By developing a biocuration assembly line of simplified and compartmentalized tasks, we have enabled biocuration to be effectively performed by a hierarchy of undergraduate students. We summarize the necessary physical resources, process for establishing a data path, biocuration workflow, and undergraduate hierarchy of curation, technical, information technology (IT), quality control and managerial positions. We detail the undergraduate application and training processes and give detailed job descriptions for each position on the assembly line. We present case studies of neuropathology curation performed entirely by undergraduates, namely the construction of experimental databases of Amyotrophic Lateral Sclerosis (ALS) transgenic mouse models and clinical data from ALS patient records. Our results reveal undergraduate biocuration is scalable for a group of 8-50+ with relatively minimal required resources. Moreover, with average accuracy rates greater than 98.8%, undergraduate biocurators are equivalently accurate to their professional counterparts. Initial training to be completely proficient at the entry-level takes about five weeks with a minimal student time commitment of four hours/week.

  5. Measuring Science Literacy in College Undergraduates

    Science.gov (United States)

    Impey, Chris David; Buxner, S. R.; Antonellis, J.; King, C.; Johnson, E.; CATS

    2010-01-01

    Initial results from a major study of scientific literacy are presented, involving nearly 10,000 undergraduates in science classes at a large Southwestern Land Grant public university over a 20-year period. The science content questions overlap with those in the NSF's Science Indicators series. About 10% of all undergraduates in the US take a General Education astronomy course, and NSF data and the work of Jon Miller show that the number of college science courses taken is the strongest predictor of civic scientific literacy. Our data show that gains in knowledge on any particular item through the time students graduate are only 10-15%. Among students who have taken most or all of their science requirements, one-in-three think that antibiotics kill viruses as well as bacteria, one-in-four think lasers work by focusing sound waves, one-in-five think atoms are smaller than electrons, and the same fraction is unaware that humans evolved from earlier species of animals and that the Earth takes a year to go around the Sun. The fraction of undergraduates saying that astrology is "not at all” scientific increases from 17% to a still-low 34% as they move through the university. Equally worrying, half of all science majors say that astrology is "sort of” or "very” scientific. Education majors - the cohort of future teachers - perform worse than average on most individual questions and in terms of their overall scientific literacy. Assuming the study institution is representative of the nation's higher education institutions, our instruction is not raising students to the level we would expect for educated citizens who must vote on many issues that relate to science and technology. We acknowledge the NSF for funding under Award No. 0715517, a CCLI Phase III Grant for the Collaboration of Astronomy Teaching Scholars (CATS) Program.

  6. Emotional response of undergraduates to cadaver dissection.

    Science.gov (United States)

    Wisenden, Patricia A; Budke, Katherine J; Klemetson, Chelsea J; Kurtti, Tana R; Patel, Chandi M; Schwantz, Trenda L; Wisenden, Brian D

    2018-03-01

    The most effective way to learn human anatomy is through cadaver dissection. Historically, cadaver dissection has been the provenance of professional schools. Increasingly, cadaver-based courses in human anatomy are shifting to the undergraduate level, which creates both problems and opportunities because of differences between undergraduate and graduate student populations. Anxiety associated with dissecting cadavers can create a barrier to learning, and ultimately, entry into the health and medical sciences for some demographic subpopulations of undergraduates. We surveyed 76 students in 2007 and 51 students in 2009 at four times in the semester to investigate the timing and sociodemographic predictors of anxiety over cadaver dissection. We followed this with a second survey of 44 students in 2014 to test the effect of humanization of cadaver donors (providing information about donor occupation and cause of death) to reduce student anxiety. Students experienced anxiety upon first exposure to cadaver dissection. Female students experienced greater anxiety than male students upon first exposure to cadavers but this effect was short-lived. Self-identified non-white, non-Christian students experienced sustained anxiety throughout the semester, likely because cadaver stress compounded social and financial stressors unique to international students. Humanization was effective in reducing anxiety in non-white, non-Christian students but had the unexpected effect of increasing anxiety in female students. We recommend that humanizing information be offered to students who seek it out, but not forced upon students for whom the information would only add to their stress. Clin. Anat. 31:224-230, 2018. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  7. Undergraduates Discovering Folds in ''Flat'' Strata: An Unusual Undergraduate Geology Field Methods Course

    Science.gov (United States)

    Abolins, Mark

    2014-01-01

    Undergraduates learned to measure, map, and interpret bedding plane attitudes during a semesterlong geology field methods course in a field area where strata dip less than 98. Despite the low dip of the strata, 2011 field course students discovered a half-kilometer-wide structural basin by using digital levels and Brunton pocket transits to…

  8. EERE Resources for Undergraduate Students

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-10-01

    Looking to expand your experience outside of the classroom? The Office of Energy Efficiency and Renewable Energy (EERE) at the U.S. Department of Energy (DOE) has a number of resources available for undergraduate students, including competitions, internships, and career planning information to help you navigate the education to employment pathway in energy.

  9. EERE Resources for Undergraduate Students

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-04-01

    Looking to expand your experience outside of the classroom? The Office of Energy Efficiency and Renewable Energy (EERE) at the U.S. Department of Energy (DOE) has a number of resources available for undergraduate students, including competitions, internships, and career planning information to help you navigate the education to employment pathway in energy.

  10. Undergraduate Training for Industrial Careers.

    Science.gov (United States)

    Stehney, Ann K.

    1983-01-01

    Forty-eight mathematicians in industry, business, and government replied to a questionnaire on the relative merits of the traditional undergraduate curriculum, advanced topics in pure mathematics, computer programing, additional computer science, and specialized or applied topics. They favored programing and applied mathematics, along with a…

  11. A conference experience for undergraduates

    International Nuclear Information System (INIS)

    Collins, L.A.; Magee, N.H.; Bryant, H.C.; Zeilik, M.

    1999-01-01

    Programs launched by many universities and the federal government expose many undergraduate students in the physical sciences to research early in their careers. However, in their research experiences, undergraduates are not usually introduced to the modes by which scientific knowledge, which they may have helped gather, is communicated and evaluated by working scientists. Nor is it always made clear where the research frontiers really lie. To this end, we guided a selected group of undergraduates through a national scientific conference, followed by a week of tutorials and discussions to help them better understand what had transpired. The program complemented the basic undergraduate research endeavors by emphasizing the importance of disseminating results both to other scientists and to society in general. Tutors and discussion leaders in the second week were experts in their fields and included some of the invited speakers from the main meeting. A considerable improvement in the understanding of the issues and prospects for a career in physics was discernible among the students after their two-week experience. copyright 1999 American Association of Physics Teachers

  12. Sexual Values of 783 Undergraduates

    Science.gov (United States)

    Richey, Emily; Knox, David; Zusman, Marty

    2009-01-01

    The sexual values of absolutism (abstinence until marriage), relativism (sexual decisions made in reference to the nature of the relationship), and hedonism ("if it feels good, do it") were assessed in a convenience sample of 783 undergraduate students at a large southeastern university. Results revealed that relativism (62.1%) was the predominate…

  13. Bioinformatics and the Undergraduate Curriculum

    Science.gov (United States)

    Maloney, Mark; Parker, Jeffrey; LeBlanc, Mark; Woodard, Craig T.; Glackin, Mary; Hanrahan, Michael

    2010-01-01

    Recent advances involving high-throughput techniques for data generation and analysis have made familiarity with basic bioinformatics concepts and programs a necessity in the biological sciences. Undergraduate students increasingly need training in methods related to finding and retrieving information stored in vast databases. The rapid rise of…

  14. Undergraduate Students' Attitudes toward Biodiversity

    Science.gov (United States)

    Huang, Hui-Ju; Lin, Yu-Teh Kirk

    2014-01-01

    The study investigated American and Taiwan undergraduate students' attitudes toward biodiversity. The survey questionnaire consisted of statements prompted by the question "To what extent do you agree with the following statements about problems with the biodiversity issues." Students indicated strongly disagree, disagree, agree,…

  15. Astrology Beliefs among Undergraduate Students

    Science.gov (United States)

    Sugarman, Hannah; Impey, Chris; Buxner, Sanlyn; Antonellis, Jessie

    2011-01-01

    A survey of the science knowledge and attitudes toward science of nearly 10000 undergraduates at a large public university over a 20-year period included several questions addressing student beliefs in astrology and other forms of pseudoscience. The results from our data reveal that a large majority of students (78%) considered astrology "very" or…

  16. Undergraduate research: a case study

    NARCIS (Netherlands)

    Koppelman, Hermannus; van Dijk, Elisabeth M.A.G.; van der Hoeven, Gerrit

    This paper describes a one semester research course for undergraduates of computing programs. Students formulate a research proposal, conduct research and write a full paper. They present the results at a one-day student conference. On the one hand we offer the students a lot of structure and

  17. Teaching Economic Forecasting to Undergraduates.

    Science.gov (United States)

    Donihue, Michael R.

    1995-01-01

    Contends that academic departments have come under increasing scrutiny in terms of the scope of curriculum and teaching methods. Describes a senior undergraduate economics course in which the primary objective was to give students opportunities to combine theoretical training with quantitative skills and apply them to real-world problems. (CFR)

  18. Investigação da influência do processamento na dinâmica molecular de nanocompósitos de policarbonato e argila organofílica obtidos via intercalação por fusão

    Directory of Open Access Journals (Sweden)

    Elton J. da R. Rodrigues

    Full Text Available Nanocompósitos baseados em policarbonato e argila organofílica foram obtidos pelo método de intercalação por fusão em câmara de mistura sob diferentes valores de torque e temperatura. A influência desses parâmetros na qualidade da dispersão da argila na matriz polimérica foi investigada por ressonância magnética nuclear (RMN de baixo campo, empregando o tempo de relaxação longitudinal, T1H, e por difração de raios X. As diferenças nos tempos de relaxação longitudinal e nos padrões de difração de raios X foram correlacionadas com a formação de domínios com mobilidades distintas. O nanomaterial formado apresentou morfologia intercalada com afastamento crescente das camadas de argila, conforme as condições de processamento se tornavam mais severas. A RMN ¹H mostrou que tanto o cisalhamento quanto a temperatura afetaram a mobilidade das cadeias poliméricas, explicitando a homogeneidade crescente da distribuição dos domínios de relaxação, de acordo com o aumento do torque e da temperatura.

  19. Prevalence of Depression among Undergraduate Students: Gender and Age Differences

    Directory of Open Access Journals (Sweden)

    Leila Ghaedi

    2014-06-01

    Full Text Available Depressive disorders are the most typical disease affecting many different factors of humanity. University students may be at increased risk of depression owing to the pressure and stress they encounter. Therefore, the purpose of this study is comparing the level of depression among male and female athletes and non-athletes undergraduate student of private university in Esfahan, Iran. The participants in this research are composed of 400 male and female athletes as well as no-athletes Iranian undergraduate students. The Beck depression test (BDI was employed to measure the degree of depression. T-test was used to evaluate the distinction between athletes and non-athletes at P≤0.05. The ANOVA was conducted to examine whether there was a relationship between level of depression among non-athletes and athletes. The result showed that the prevalence rate of depression among non-athlete male undergraduate students is significantly higher than that of athlete male students. The results also presented that level of depression among female students is much more frequent compared to males. This can be due to the fatigue and lack of energy that are more frequent among female in comparison to the male students. Physical activity was negatively related to the level of depression by severity among male and female undergraduate students. However, there is no distinct relationship between physical activity and level of depression according to the age of athlete and nonathlete male and female undergraduate students. This study has essential implications for clinical psychology due to the relationship between physical activity and prevalence of depression.

  20. Organization of an undergraduate research group

    International Nuclear Information System (INIS)

    Hill, J.; Noteboom, E.

    1995-01-01

    Traditionally, research groups consist of senior physicists, staff members, and graduate students. The physics department at Creighton University has formed a Relativistic Heavy Ion physics research group consisting primarily of undergraduate students. Although senior staff and graduate students are actively involved, undergraduate research and the education of undergraduates is the focus of the group. The presentation, given by two undergraduate members of the group, will outline progress made in the group's organization, discuss the benefits to the undergraduate group members, and speak to the balance which must be struck between education concerns and research goals

  1. Promoting self-reflection in clinical practice among Chinese nursing undergraduates in Hong Kong.

    Science.gov (United States)

    Ip, Wan Yim; Lui, May H; Chien, Wai Tong; Lee, Iris F; Lam, Lai Wah; Lee, Diana T

    2012-06-01

    This study evaluated the effect of a structured education programme on improving the self-reflection skills of Chinese nursing undergraduates in managing clinical situations. Johns' Structured Reflection Model was used as a framework for the development of the education programme. Thirty-eight nursing undergraduates attended a 3-hour interactive workshop on reflective skills and were encouraged to practise the skills learned under the guidance of a nurse instructor during their 4-week clinical practicum. The findings indicated that the programme was helpful in improving the undergraduates' reflective skills though only a few of them reached the highest level as critical reflectors. Some undergraduates identified time constraints and the lack of a trusting relationship with their nurse instructor as barriers to their reflective learning. The findings may help nurse educators develop education programmes with structured learning strategies to promote nursing undergraduates' self-refection in clinical practice.

  2. A Tiered Mentoring Model of Exposing and Engaging Students with Research Throughout the Undergraduate Curriculum

    Science.gov (United States)

    Guerard, J.; Hayes, S. M.

    2015-12-01

    Incorporating research into undergraduate curricula has been linked to improved critical thinking, intellectual independence, and student retention, resulting in a graduating population more ready for the workforce or graduate school. We have designed a three-tier model of undergraduate chemistry courses that enable first-year students with no previous research experience to gain the skills needed to develop, fund and execute independent research projects by the close of their undergraduate studies. First-year students are provided with context through a broadly focused introductory class that exposes them to current faculty research activities, and also gives them direct experience with the research process through peer mentored research teams as they participate in faculty-directed projects. Mid-career undergraduate students receive exposure and support in two formats: illustrative examples from current faculty research are incorporated into lessons in core classes, and courses specially designed to foster research independence. This is done by providing content and process mentoring as students develop independent projects, write proposals, and build relationships with faculty and graduate students in research groups. Advanced undergraduates further develop their research independence performing student-designed projects with faculty collaboration that frequently result in tangible research products. Further, graduate students gain experience in mentoring though formal training, as well as through actively mentoring mid-career undergraduates. This novel, integrated approach enables faculty to directly incorporate their research into all levels of the undergraduate curriculum while fostering undergraduates in developing and executing independent projects and empowering mentoring relationships.

  3. Mineralogia e cristalografia da fração argila de horizontes coesos de solos nos tabuleiros costeiros Crystallography and mineralogy of the clay fraction of hardsetting horizons in soils of coastal tablelands in Brazil

    Directory of Open Access Journals (Sweden)

    Neyde Fabíola Balarezo Giarola

    2009-02-01

    Full Text Available A coesão de horizontes de solos do Brasil vem sendo associada, principalmente, a fatores físicos e químicos inter-relacionados, mas a influência das propriedades mineralógicas e cristalográficas dos minerais da fração argila também foi aventada por alguns pesquisadores. Neste trabalho, testou-se a hipótese de que a fração argila de horizontes coesos de solos do Sedimento Barreiras da faixa dos Tabuleiros Costeiros é dominantemente caulinítica e apresenta elevado grau de cristalinidade e ordenamento, o que pode favorecer o ajuste face a face dos cristais. O objetivo deste trabalho foi avaliar as características mineralógicas e cristalográficas dos minerais da fração argila de horizontes coesos provenientes de solos de sedimentos do Grupo Barreiras e uma possível contribuição para a ocorrência do caráter coeso. Para isso, foram analisados cinco horizontes coesos e um não-coeso de solos distribuídos ao longo da faixa dos Tabuleiros Costeiros. Também foi incluída, como referência, uma caulinita com elevado grau de cristalinidade. Todos os perfis foram analisados para classificação taxonômica e localização dos horizontes de interesse. Nas amostras dos horizontes selecionados, foram removidos a matéria orgânica e os óxidos. Após a dispersão de partículas, a fração argila foi individualizada, tratada e analisada por difração de raios X (DRX para determinar os minerais e o grau de ordem/desordem estrutural, segundo o Método Especialista de Plançon & Zacharie (1990. Todos os horizontes coesos apresentaram caulinitas com grau de ordenamento estrutural similar ao do horizonte não-coeso e inferior à caulinita de referência, o que não permitiu associar o empacotamento da fração argila com a manifestação do caráter coeso nos horizontes estudados, a partir das avalioações obtidas pelo método utilizado.The cohesion of hardsetting horizons of Brazilian soils has been mainly associated to inter

  4. Variáveis de acidez em função da mineralogia da fração argila do solo Soil acidity parameters as related to clay mineralogy

    Directory of Open Access Journals (Sweden)

    Valentim da Silva

    2008-04-01

    Full Text Available A acidez do solo e variáveis associadas são muito importantes nos manejos dos solos, especialmente nas regiões tropicais e subtropicais. Com o objetivo de estudar algumas variáveis da acidez do solo e verificar a influência da mineralogia da fração argila sobre a relação entre pH em CaCl2 e grau de saturação por bases (V, amostraram-se os horizontes B e C de diferentes classes de solo no Estado do Paraná: Latossolo Bruno ácrico húmico (LBw-1, Latossolo Bruno distrófico húmico (LBw-2, Latossolo Vermelho distroférrico húmico (LVdf, Cambissolo Háplico alumínico típico (CXa e Cambissolo Húmico distroférrico típico (CHd. A fração argila foi estudada por difratometria de raios X, análise termodiferencial, análise termogravimétrica e análises químicas. As amostras de solo foram incubadas por 60 dias, após terem recebido doses crescentes de óxido de cálcio, para atingir valores preestabelecidos do grau de saturação por bases (natural, 25, 45, 60, 70, 125 e 150 %. Em seguida, determinaram-se os teores de cátions trocáveis e os valores de pH em H2O e solução de CaCl2 1 mol L-1. Os solos apresentaram o seguinte comportamento quanto à mineralogia da fração argila: mais esmectítico/vermiculítico - CXa; mais oxídico, principalmente óxidos de Fe - LVdf e óxidos de Al - LBw1; mais caulinítico, com menores teores de óxidos de Fe e Al - CHd e LBw2. Essa diversidade mineralógica foi determinante na relação pH em CaCl2 e grau de saturação por bases (V dos solos. As curvas que mostraram essa relação foram não lineares, o que significa poder tamponante diferenciado ao longo da faixa de pH em CaCl2 estudada; formato convexo dos solos mais oxídicos e côncavo dos solos cauliníticos e com argila 2:1. O formato convexo das curvas foi conseqüência da formação de cargas negativas e dissociação de H+ preferencialmente a valores elevados de pH em CaCl2 (acima de 5, devido à menor acidez (PCZ mais alto dos

  5. Preparação e Caracterização de Nanofibras de Nanocompósitos de Poliamida 6,6 e Argila Montmorilonita Preparation and Characterization of Nanofibers of Polyamide 66 and Montmorillonite Clay Nanocomposites

    Directory of Open Access Journals (Sweden)

    Camila R. dos Santos

    2011-01-01

    Full Text Available A busca por fibras poliméricas com diâmetros na ordem de nanômetros tem sido alvo dos pesquisadores e das indústrias, sendo que essas fibras possuem diversas aplicações. Estas fibras podem ser produzidas pelo processo de eletrofiação a partir da solução polimérica. Neste trabalho, fibras de nanocompósitos de poliamida 6,6 e argila montmorilonita foram obtidas via mistura no estado fundido, seguida da eletrofiação da solução dessa mistura. Nanocompósitos com três diferentes concentrações de argila, 2, 3 e 4% em peso, foram obtidos via mistura no estado fundido, e soluções desses nanocompósitos em ácido fórmico foram preparadas em diferentes concentrações. A influência da adição de argila, da concentração da solução de nanocompósitos, da variação do campo elétrico aplicado sobre as propriedades das misturas, das soluções e finalmente sobre o diâmetro médio das fibras obtidas foi estudada. Medidas de difração de raios-x a altos ângulos (DRX e de microscopia eletrônica de transmissão (MET comprovaram que o processo de eletrofiação foi eficiente na manutenção da esfoliação da argila das fibras obtidas. Resultados de microscopia eletrônica de varredura (MEV e de calorimetria de varredura diferencial (DSC permitiram concluir que as fibras obtidas possuem diâmetros médios na ordem de nanômetros, são cilíndricas, não porosas, possuem baixo grau de cristalinidade e apresentam solvente residual. A adição de argila aumentou ligeiramente a viscosidade da solução e consequentemente um pequeno aumento do diâmetro médio das nanofibras foi observado. Por outro lado, um aumento do diâmetro médio das nanofibras com o aumento da concentração polimérica foi observado. Em relação ao campo elétrico aplicado notou-se uma tendência na diminuição do diâmetro médio das fibras à medida que este parâmetro diminui.The search for polymeric fibers with diameters in the scale of nanometers has been

  6. Incorporating technical analysis in undergraduate curricula

    Directory of Open Access Journals (Sweden)

    Michael R. Melton

    2017-11-01

    Full Text Available Purpose – The purpose of this paper is to introduce instruction of technical analysis on the undergraduate level that can coincide with traditional teachings of fundamental analysis. Design/methodology/approach – Through examples using the latest in security analysis technology, this paper illustrates the importance of technical security analysis. Findings – This research illustrates how technical analysis techniques may be used to make more significant investment decisions. Originality/value – Kirkpatrick and Dahlquist define technical analysis as a security analysis discipline for forecasting future direction of prices through the study of past market data primarily price and volume This form of analysis has stood in direct contrast to the fundamental analysis approach whereby actual facts of the company its industry and sector may be ignored. Understanding this contrast, much of academia has chosen to continue to focus its finance curricula on fundamental analysis techniques. As more universities implement trading rooms to reflect that of industry, they must recognize that any large brokerage trading group or financial institution will typically have both a technical analysis and fundamental analysis team. Thus, the need to incorporate technical analysis into undergraduate finance curricula.

  7. The Contributions of the WIYN Observatory to Undergraduate Education

    Science.gov (United States)

    Hooper, Eric; Consortium, WIYN

    2014-01-01

    Over its nearly 20 year history the WIYN Observatory has provided crucial data for numerous undergraduate research projects at the partner institutions (University of Wisconsin-Madison, Indiana University, and Yale University) plus others who access the telescope via national time from NOAO. WIYN and its instruments have served both undergraduates who are local to each institution, as well as those who have a temporary tenure as Research Experience for Undergraduates (REU) students. The topics of this work range widely, and only a few examples are listed here. Numerous studies of stars have been undertaken by undergraduates, from rotation velocities of pre-main sequence stars (Rhode et al.) to dynamical heating mechanisms in open clusters (Friel et al.). Extragalactic investigations range from a study of cold ISM in galaxies near the centers of rich clusters (Gallagher & Hooper, et al.) to the stellar populations of post-starburst galaxies hosting low-level AGN (Wolf & Hooper, et al.). Students have made wide use of WIYN's long established suite of facility instruments, which currently includes the Hydra multi-object fiber spectrograph, the SparsePak integral field unit fiber spectrograph, and the WHIRC near-infrared imager. A current undergraduate is a key player in final laboratory testing of two new integral field units that will come to WIYN soon. Finally, the new large format imager pODI currently is in science operation, soon to be followed by an upgrade to nearly four times the current imaging area, a powerful tool that will join the others in contributing to undergraduate research and education. This presentation is a continuation of the overview of WIYN contributions to education that began with a discussion of graduate education at the Indianapolis AAS (Hooper, AAS Meeting #222, #214.23).

  8. Undergraduate Research as a Process for STEM Teaching and Learning Systemic Change: Lessons Learned from the Council on Undergraduate Research NSF CCLI and TUES Projects

    Science.gov (United States)

    Ambos, E. L.; Havholm, K. G.; Malachowski, M.; Osborn, J.; Karukstis, K.

    2013-12-01

    For more than seven years, the Council on Undergraduate Research (CUR), the primary organization supporting programs, services, and advocacy for undergraduate research, has been working with support from the NSF's Division of Undergraduate Education (DUE) to enhance, sustain, and institutionalize undergraduate research in diverse STEM disciplines and higher education settings. The Council on Undergraduate Research comprises more than 9000 individual and 670 institutional members within a divisional structure that includes geosciences, as well as 11 other thematic areas. Through its most recent grant: 'Transformational Learning through Undergraduate Research: Comprehensive Support for Faculty, Institutions, State Systems and Consortia' (NSF DUE CCLI III Award #09-20275), CUR has been collaborating with six higher education systems, each selected after a rigorous national application process in 2010 and 2011. These six systems, which collectively represent 79 individual institutions, are the Council of Public Liberal Arts Colleges (COPLAC), University of Wisconsin System (UWS), California State University System (CSU), City University of New York (CUNY), Great Lakes Colleges Association (GLCA), and Pennsylvania State System of Higher Education (PASSHE). The more than 350 participants of faculty and senior-level administrators from the six systems are engaged in shared multi-faceted and multi-year professional development experiences. Teams from each system attended customized institutes facilitated by CUR experts in 2011-2012, during which the teams developed specific action plans focused on institutionalizing undergraduate research on their campus and within their system. The systems were reconvened as a group a year after the first institute, to chart progress toward achieving their goals. Based on interviews and surveys with participants, campus teams are making substantial progress toward implementation of robust undergraduate research programs, and are making

  9. TRANSITIONING BEYOND UNDERGRADUATE HOSPITALITY EDUCATION; A DIALOGIC ANALYSIS OF FINAL YEAR HOSPITALITY STUDENTS’ NARRATIVES OF EMPLOYABILITY

    OpenAIRE

    Hine, Catherine

    2017-01-01

    Employability has become a key consideration for graduates, and society. Increasingly the trajectory of individuals at age 18 involves the completion of an undergraduate level degree qualification. This thesis presents a sociologically grounded study into the dialogic construction of employability in final year hospitality students and recent hospitality graduates. Drawing on a nationwide sample of UK based hospitality graduates, as they transition beyond undergraduate level higher educati...

  10. Undergraduate Students' Pro-Environmental Behavior in Daily Practice

    Science.gov (United States)

    Dewi, Widiaswati; Sawitri, Dian R.

    2018-02-01

    Pro-environmental behavior is an individual action as a manifestation of one's responsibility to create a sustainable environment. University students as one of the agent of change can adopt pro-environmental behaviors concept, even through simple things to do on daily activities such as ride a bicycle or walk for short distance, reuse the shopping bags, separate waste, learn about environmental issues etc. Many studies have examined pro-environmental behavior from various approaches. However, the study about university students' pro-environmental behavior is lacking. The aim of this paper is to examine the undergraduate students' pro-environmental behaviors level. We surveyed 364 first year undergraduate students from a state university in Semarang. The survey included six aspects of pro-environmental behavior in daily practice which include energy conservation, mobility and transportation, waste avoidance, recycling, consumerism, and vicarious behaviors toward conservation. Findings of this study showed the level of pro-environmental behavior of first year undergraduate students is medium. Recommendations for undergraduate students and future researchers are discussed.

  11. Undergraduate reactor control experiment

    International Nuclear Information System (INIS)

    Edwards, R.M.; Power, M.A.; Bryan, M.

    1992-01-01

    A sequence of reactor and related experiments has been a central element of a senior-level laboratory course at Pennsylvania State University (Penn State) for more than 20 yr. A new experiment has been developed where the students program and operate a computer controller that manipulates the speed of a secondary control rod to regulate TRIGA reactor power. Elementary feedback control theory is introduced to explain the experiment, which emphasizes the nonlinear aspect of reactor control where power level changes are equivalent to a change in control loop gain. Digital control of nuclear reactors has become more visible at Penn State with the replacement of the original analog-based TRIGA reactor control console with a modern computer-based digital control console. Several TRIGA reactor dynamics experiments, which comprise half of the three-credit laboratory course, lead to the control experiment finale: (a) digital simulation, (b) control rod calibration, (c) reactor pulsing, (d) reactivity oscillator, and (e) reactor noise

  12. [Smoking among undergraduate university students].

    Science.gov (United States)

    Barra C, Lisseth; Fernández P, Paola; Granada G, Felipe; Ávila C, Paula; Mallea M, Javier; Rodríguez M, Yeniffer

    2015-10-01

    Smoking is one of the major Public Health problems worldwide. To study the frequency of tobacco smoking among undergraduate students of a Chilean university. An opinion survey was sent by e-mail to all undergraduate students of a university, registering gender, age, study years, study area, smoking behavior, motivation (reason for smoking), intention to quit and tobacco law perception. 1,008 (57% females) out of 11,679 surveys were answered back. Prevalence of active smoking among respondents was 36%, without association with gender, age or years of study. However, students from scientific areas had a lower prevalence. Seventy seven percent of smokers manifested the intention to quit the habit or have started quitting already. Ninety six percent were acquainted with the tobacco law and by 73% agreed with it. Smoking is highly prevalent among university students. It is necessary to develop strategies for smoking cessation within universities that may prevent or reduce tobacco smoking among students.

  13. Enhancing undergraduate students’ communications skills

    DEFF Research Database (Denmark)

    Jørgensen, Merete; Witt, Klaus; Fridorff-Jens, Peter Kindt

    2014-01-01

    ,Monika Bullinger,Matthias Rose, Sylke Andreas.Enhancing medical students' communication skills: development and evaluation of an undergraduate training program.Published online 2012 March 24. doi: 10.1186/1472-6920-12-16 2.William T. Branch, Jr, MD; David Kern, MD; Paul Haidet, MD, MPH; Peter Weissmann, MD......19729 Abstract Title: Enhancing undergraduate students communications skills Abstract Authors: •Merete Jorgensen, Copenhagen University , Family Medicine , Copenhagen •Klaus Witt, Research Unit , Family Medicine , Copenhagen •Peter Kindt Fridorff-Jens, Copenhagen University , IT-unit , Copenhagen...... Abstract Presenter(s): •Merete Jorgensen, Copenhagen University , Family Medicine , Øster Farigmagsgade 5 , 1014 , K , Denmark , mejor@sund.ku.dk Abstract: Background Being teachers in Clinical Course of Family Medicine since 1995, we have developed two schemes for communication analysing purposes called...

  14. APLICACIÓN DE REDES NEURONALES EN LA CLASIFICACIÓN DE ARCILLAS APLICAÇÃO DE REDES NEURONAIS NA CLASSIFICAÇÃO DE ARGILAS APPLICATION OF NEURAL NETWORKS IN CLASSIFICATION OF CLAYS

    Directory of Open Access Journals (Sweden)

    Jairo Gómez

    2012-06-01

    Full Text Available Las arcillas son la materia prima fundamental en la fabricación de productos para el sector constructor tales como baldosas, enchapes, pavimentos y ladrillos. Las pequeñas y medianas industrias ladrilleras por lo general utilizan arcillas de diverso origen mineralógico, clasificadas para formular sus mezclas con base en la experiencia del equipo de personas responsables de la producción; la incertidumbre asociada con este método causa que una parte de sus productos se rechacen después de fabricados, porque sus propiedades no cumplen las especificaciones técnicas. En este artículo se presenta una metodología basada en redes neuronales que permite clasificar, con base en sus propiedades, las arcillas que se van a usar para componer las pastas, con el propósito de disminuir la cantidad de producto rechazado. Se emplearon diversas topologías de red para la clasificación, lo cual permitió encontrar una capaz de predecir las muestras de entrenamiento y prueba con 97,79 % y 94,12 % de precisión, respectivamente.As argilas são a matéria prima fundamental na fabricação de produtos para o setor construtor tais como baldosas, revestimentos, pavimentos e tijolos. As pequenas e médias indústrias de tijolos geralmente utilizam argilas de diversa origem mineralógica, classificadas para formular suas misturas com base na experiência da equipe de pessoas responsáveis pela produção; a incerteza associada com este método causa que uma parte de seus produtos se rejeite depois de fabricados, porque suas propriedades não cumprem as especificações técnicas. Em este artigo apresenta-se uma metodologia baseada em redes neuronais que permite classificar, com base em suas propriedades, as argilas que se vão usar para compor as massas, com o propósito de diminuir a quantidade de produto rejeitado. Empregaram-se diversas topologias de rede para a classificação, o qual permitiu encontrar uma capaz de predizer as mostras de treinamento e

  15. Estudo comparativo das argilas das olarias dos municípios de Alfenas e Areado, MG Comparative study of the clays used in potteries from Alfenas and Areado, MG, Brazil

    Directory of Open Access Journals (Sweden)

    L. A. Gaspar Junior

    2012-09-01

    Full Text Available Os horizontes pedológicos dos perfis de solos desenvolvidos a partir das rochas pré-cambrianas dos municípios de Alfenas, MG e Areado, MG assim como os sedimentos colúvio-aluvionares associados têm sido intensivamente utilizados para fins cerâmicos (em particular em olarias de tijolos sem um estudo detalhado para racionalizar sua utilização na indústria cerâmica. Entretanto apesar da proximidade destes dois municípios, segundo antigos trabalhadores das olarias dessas regiões, as argilas do município de Areado têm apresentado qualidade superior às das argilas do município de Alfenas. Tal fato levou ao desenvolvimento do presente trabalho cujo objetivo foi comparar as propriedades mineralógicas (descrição macroscópica e difração de raios X, químicas (elementos maiores por fluorescência por raios X e análise de carbono orgânico e tecnológicas (distribuição granulométrica de prensagem; granulometria a laser, módulo de ruptura à flexão; absorção de água, porosidade aparente; retração linear de queima; cor de queima, entre outros das argilas destes dois municípios para se conhecer a matéria-prima dessas duas regiões de modo a desenvolver aplicações tecnológicas adequadas. A melhor qualidade da matéria prima originada do município de Areado (Grupo AR é devida à maior presença de argilominerais como a caulinita, illita e esmectita associados a uma granulometria mais fina, que contribuiu para uma melhor sinterização.The pedological horizons of soil profiles developed from pre-cambrian rocks of the municipalities of Alfenas and Areado, MG, Brazil, as well as the alluvial-colluvial sediments associated has been used intensively for ceramic potteries (particularly for bricks but without a detailed study to rationalize their use in the ceramic industry. However, despite the proximity of these cities, according to skilled workers of the brickworks, the raw materials from Areado have shown higher quality than

  16. Undergraduate Research Opportunities in OSS

    Science.gov (United States)

    Boldyreff, Cornelia; Capiluppi, Andrea; Knowles, Thomas; Munro, James

    Using Open Source Software (OSS) in undergraduate teaching in universities is now commonplace. Students use OSS applications and systems in their courses on programming, operating systems, DBMS, web development to name but a few. Studying OSS projects from both a product and a process view also forms part of the software engineering curriculum at various universities. Many students have taken part in OSS projects as well as developers.

  17. VARIABILIDADE ESPACIAL DE ARGILA, SILTE E ATRIBUTOS QUÍMICOS EM UMA PARCELA EXPERIMENTAL DE UM LATOSSOLO ROXO DE CAMPINAS (SP

    Directory of Open Access Journals (Sweden)

    SIDNEY ROSA VIEIRA

    1997-01-01

    Full Text Available A grande maioria dos ensaios de manejo e fertilidade do solo utiliza o método de delineamentos experimentais, segundo o qual as observações devem ser independentes umas das outras e as parcelas experimentais, uniformes quanto aos atributos estudados. A hipótese de independência entre as amostras apenas pode ser satisfeita e verificada na prática, se a amostragem contiver informações geográficas, como, por exemplo, as coordenadas com referências a um eixo arbitrário para possibilitar análises da geoestatística. O objetivo deste trabalho foi estudar a variabilidade espacial de alguns atributos químicos e granulométricos do solo dentro de uma parcela experimental e mostrar o uso da geoestatística para analisar os dados. O campo estudado localiza-se no Centro Experimental de Campinas do Instituto Agronômico, Campinas (SP, em um latossolo roxo distrófico sob preparo convencional nos últimos dez anos. Marcou-se uma parcela de 30 m por 30 m a cada 5 m em duas direções, resultando em um reticulado quadrado de 49 pontos de amostragem. Em cada ponto, coletaram-se amostras de solo das camadas 0-25 cm e 25-50 cm de profundidade, as quais foram levadas ao laboratório, secas ao ar, peneiradas em uma malha de 2 mm e submetidas às análises granulométricas e químicas de rotina para obter teor de argila, teor de silte, delta pH, soma de bases (S, capacidade de troca catiônica (CTC e saturação por bases (V%. Para a análise de variabilidade espacial, utilizou-se a geoestatística. Os coeficientes de variação encontrados são mais altos na camada 0-25 cm do que na 25-50 cm, provavelmente devido à região de maior alteração com cultivo. Foi encontrada dependência espacial para todos os atributos analisados para a camada 0-25 cm, e dependência fraca para a camada 25-50 cm. Considerando que o campo engloba apenas uma área de 30 m por 30 m, conclui-se que a variabilidade encontrada para os atributos químicos do solo foi grande e

  18. Resposta de culturas e disponibilidade de enxofre em solos com diferentes teores de argila e matéria orgânica submetidos à adubação sulfatada

    Directory of Open Access Journals (Sweden)

    Tales Tiecher

    2012-01-01

    Full Text Available Em solos com baixos teores de argila e matéria orgânica pode haver menor disponibilidade de enxofre (S e, por esse motivo, espera-se que a adubação sulfatada incremente a produção das culturas. O trabalho objetivou avaliar a resposta de culturas e a disponibilidade de S em solos com diferentes teores de argila e matéria orgânica, submetidos à adubação sulfatada. O experimento foi realizado em vasos em casa de vegetação no período de agosto de 2004 até janeiro de 2008. Foram realizados nove cultivos sucessivos de plantas em quatro tipos de solos, submetidos à aplicação de quatro doses de S. Avaliou-se a produção de matéria seca e o acúmulo de S na parte aérea das plantas e o teor do elemento disponível no solo das camadas 0 - 10 e 10 - 20 cm. As plantas do primeiro cultivo de milho e aveia preta aumentaram a produção de matéria seca com a aplicação de S, mas o aumento da produção do milho não teve relação com os teores de S disponível da camada 0 - 10 cm nos solos arenosos. Mesmo com teores de S disponível nessa camada abaixo dos níveis de suficiência, não houve resposta do girassol, feijão, soja e mamona à adubação sulfatada. A quantidade de S acumulada na parte aérea das plantas e o teor de S disponível no solo aumentaram com a aplicação do nutriente. Grande parte do S migrou para a camada de 10 - 20 cm, especialmente nos solos arenosos e, assim, o diagnóstico da sua disponibilidade deve ser realizado nas camadas subsuperficiais do solo.

  19. Comportamento dos óxidos de ferro da fração argila e do fósforo adsorvido, em diferentes sistemas de colheita de cana-de-açúcar

    Directory of Open Access Journals (Sweden)

    Diogo Mazza Barbieri

    2013-12-01

    Full Text Available Na agricultura, a obtenção de maiores produtividades das culturas com base no manejo sustentável do solo tem levado a uma busca gradativa do conhecimento das variáveis envolvidas nos sistemas de produção. Determinar as causas da variabilidade dos atributos passa a ser uma etapa do planejamento estratégico no setor sucroenergético. Este trabalho teve por objetivo estudar a variabilidade espacial dos óxidos de ferro da fração argila e sua relação com atributos físicos e químicos do solo, em diferentes sistemas de colheita de cana-de-açúcar na Região de Ribeirão Preto, SP. Duas parcelas de 1 ha foram delimitadas em áreas com sistema de colheitas mecanizada e manual. Foram retiradas, em cada área, amostras de solos em 126 pontos, na profundidade de 0,00-0,25 m. Os resultados das análises mineralógicas e químicas foram submetidos às análises geoestatísticas, obtendo-se a dependência espacial, os semivariogramas e os mapas de krigagem dos atributos estudados. Para analisar a correlação espacial entre os atributos estudados, foram construídos semivariogramas cruzados. A variabilidade espacial dos atributos químicos é maior em áreas com colheita de cana crua, quando comparada com áreas de colheita de cana queimada, ao contrário dos atributos mineralógicos, que apresentaram os maiores alcances na área de cana crua. Os atributos matéria orgânica, diâmetro médio do cristal da goethita apresentaram correlação espacial negativa, enquanto a argila apresentou correlação positiva com a adsorção de fósforo nos dois sistemas de colheita de cana-de-açúcar avaliados.

  20. Music Undergraduates' Usefulness and Importance Expectations: The Bologna Process from an Australian University Perspective.

    Science.gov (United States)

    Harvey, Dominic G; Davidson, Jane W; Nair, Chenicheri S

    2016-01-01

    The Bologna Process model of higher education has been introduced into some Australian universities since 2008. This model promoted university study through a liberal arts philosophy that advanced a worldview approach at the undergraduate level. The model generalized the student experience and eliminated undergraduate specialization. An interesting situation for music undergraduate study thus arose. Expertise and expert performance research has argued an opposing educational approach, namely: Extensive long-term commitment through focused practical engagement and specialized tuition as prerequisites to achieving musical mastery, especially in performance. Motivation research has shown that the majority of this specialized development in pre-university years would be accessed and reinforced predominantly through private music tuition. Drawing on this contextual literature, commencing university music undergraduates would have expectations of their prospective study founded from two historical influences. The first: How undergraduates had accessed pre-university music tuition. The second: How and in what ways undergraduates' pre-university musical activities were experienced and reinforced. Using usefulness and importance measures, the study observed the expectations of students about to commence music undergraduate studies at three representative Australian university music schools. One of these universities operated the Bologna styled model. No other known Australian study has investigated this implementation for any effects upon music undergraduate expectations. How much commencing music undergraduates would draw on their pre-university music instruction and experiences to predict their usefulness and importance expectations formed the basis for this investigation. Strong relationships between usefulness and importance were found across all units of study. Despite strong correlations across all units of study between usefulness and importance, there was a

  1. Music Undergraduates' Usefulness and Importance Expectations: The Bologna Process from an Australian University Perspective

    Science.gov (United States)

    Harvey, Dominic G.; Davidson, Jane W.; Nair, Chenicheri S.

    2016-01-01

    The Bologna Process model of higher education has been introduced into some Australian universities since 2008. This model promoted university study through a liberal arts philosophy that advanced a worldview approach at the undergraduate level. The model generalized the student experience and eliminated undergraduate specialization. An interesting situation for music undergraduate study thus arose. Expertise and expert performance research has argued an opposing educational approach, namely: Extensive long-term commitment through focused practical engagement and specialized tuition as prerequisites to achieving musical mastery, especially in performance. Motivation research has shown that the majority of this specialized development in pre-university years would be accessed and reinforced predominantly through private music tuition. Drawing on this contextual literature, commencing university music undergraduates would have expectations of their prospective study founded from two historical influences. The first: How undergraduates had accessed pre-university music tuition. The second: How and in what ways undergraduates' pre-university musical activities were experienced and reinforced. Using usefulness and importance measures, the study observed the expectations of students about to commence music undergraduate studies at three representative Australian university music schools. One of these universities operated the Bologna styled model. No other known Australian study has investigated this implementation for any effects upon music undergraduate expectations. How much commencing music undergraduates would draw on their pre-university music instruction and experiences to predict their usefulness and importance expectations formed the basis for this investigation. Strong relationships between usefulness and importance were found across all units of study. Despite strong correlations across all units of study between usefulness and importance, there was a

  2. Undergraduate students' goals for chemistry laboratory coursework

    Science.gov (United States)

    DeKorver, Brittland K.

    Chemistry laboratory coursework has the potential to offer many benefits to students, yet few of these learning goals are realized in practice. Therefore, this study seeks to characterize undergraduate students' learning goals for their chemistry laboratory coursework. Data were collected by recording video of students completing laboratory experiments and conducting interviews with the students about their experiences that were analyzed utilizing the frameworks of Human Constructivism and Self-Regulated Learning. A cross-sectional sampling of students allowed comparisons to be made among students with varying levels of chemistry experience and interest in chemistry. The student goals identified by this study were compared to previously described laboratory learning goals of the faculty who instruct these courses in an effort to identify potential avenues to improve laboratory learning.

  3. Scenario-based teaching in undergraduate medical education

    Directory of Open Access Journals (Sweden)

    Patel K

    2016-12-01

    Full Text Available Kunj Patel, Omar El Tokhy Faculty of Medicine, Imperial College London, London, UKWe read with great interest the study by Frost et al1 which highlights the importance of scenario-based teaching (SBT of clinical communication in medical undergraduate pediatrics teaching. SBT involves students navigating a storyline based around a complex problem, running in parallel with case-based learning. We were impressed by the results of the SBT program at Cardiff University School of Medicine. As medical students currently on our pediatric rotation at Imperial College London, we have experienced at first hand the benefits of SBT. Throughout the placement, it continues to help us tackle the complexities which arise when communicating with children and their families. We have noted its particular benefit in breaking bad news to families. Without effective teaching on this particular scenario, a failure to grasp this skill could exacerbate patient and parent concerns. Much like the authors of this study highlight,1 we believe specific teaching on communication skills should be a mandatory part of medical undergraduate education at every institution. Imperial College School of Medicine has developed a similar teaching style which has been unparalleled in its benefit to us during our pediatric rotation. Although there is scant literature available specifically addressing communicating with children and parents at undergraduate level, the use of SBT throughout undergraduate medical teaching should not be underestimated. Read the original paper by Frost et al

  4. Blended learning: how can we optimise undergraduate student engagement?

    Science.gov (United States)

    Morton, Caroline E; Saleh, Sohag N; Smith, Susan F; Hemani, Ashish; Ameen, Akram; Bennie, Taylor D; Toro-Troconis, Maria

    2016-08-04

    Blended learning is a combination of online and face-to-face learning and is increasingly of interest for use in undergraduate medical education. It has been used to teach clinical post-graduate students pharmacology but needs evaluation for its use in teaching pharmacology to undergraduate medical students, which represent a different group of students with different learning needs. An existing BSc-level module on neuropharmacology was redesigned using the Blended Learning Design Tool (BLEnDT), a tool which uses learning domains (psychomotor, cognitive and affective) to classify learning outcomes into those taught best by self-directed learning (online) or by collaborative learning (face-to-face). Two online courses were developed, one on Neurotransmitters and the other on Neurodegenerative Conditions. These were supported with face-to-face tutorials. Undergraduate students' engagement with blended learning was explored by the means of three focus groups, the data from which were analysed thematically. Five major themes emerged from the data 1) Purpose and Acceptability 2) Structure, Focus and Consolidation 3) Preparation and workload 4) Engagement with e-learning component 5) Future Medical Education. Blended learning was acceptable and of interest to undergraduate students learning this subject. They expressed a desire for more blended learning in their courses, but only if it was highly structured, of high quality and supported by tutorials. Students identified that the 'blend' was beneficial rather than purely online learning.

  5. Undergraduate medical academic performance is improved by scientific training.

    Science.gov (United States)

    Zhang, Lili; Zhang, Wei; Wu, Chong; Liu, Zhongming; Cai, Yunfei; Cao, Xingguo; He, Yushan; Liu, Guoxiang; Miao, Hongming

    2017-09-01

    The effect of scientific training on course learning in undergraduates is still controversial. In this study, we investigated the academic performance of undergraduate students with and without scientific training. The results show that scientific training improves students' test scores in general medical courses, such as biochemistry and molecular biology, cell biology, physiology, and even English. We classified scientific training into four levels. We found that literature reading could significantly improve students' test scores in general courses. Students who received scientific training carried out experiments more effectively and published articles performed better than their untrained counterparts in biochemistry and molecular biology examinations. The questionnaire survey demonstrated that the trained students were more confident of their course learning, and displayed more interest, motivation and capability in course learning. In summary, undergraduate academic performance is improved by scientific training. Our findings shed light on the novel strategies in the management of undergraduate education in the medical school. © 2017 by The International Union of Biochemistry and Molecular Biology, 45(5):379-384, 2017. © 2017 The International Union of Biochemistry and Molecular Biology.

  6. Integrating a Discovery-Based Laboratory to Teach Supply Chain Management Fundamentals in an Undergraduate Management Course

    Science.gov (United States)

    Zeng, Amy; Johnson, Sharon

    2009-01-01

    Using experiential simulation games is a commonly used pedagogical method to enrich classroom discussions and to facilitate students' learning in supply chain management education at both undergraduate and graduate levels. However, existing games are inappropriate for undergraduate students that are first-time learners of the subject. In this…

  7. The Impact of Providing Web-Based PowerPoint Slides as Study Guides in Undergraduate Business Classes

    Science.gov (United States)

    Frank, Jonathan; Shaw, Lewis; Wilson, Elizabeth

    2009-01-01

    This study examines undergraduate business students' use of PowerPoint slides provided as a supplement to class attendance, textbook reading, and other traditional course resources. We survey students in 4 diverse (accounting, marketing, management, and information systems) lower-level undergraduate courses in which the instructor provided…

  8. Pattern of Smartphones Utilisation among Engineering Undergraduates

    OpenAIRE

    Muliati Sedek

    2014-01-01

    The smartphones ownership among the undergraduates in Malaysia was recorded as high. However, little was known about its utilization patterns, thus, the focus of this research was to determine the utilisation patterns of smartphones based on the National Education Technology Standard for Students (NETS.S) among engineering undergraduates in Malaysia. This study was based on a quantitative research and the population comprised undergraduates from four Malaysian Technical Universities. A total ...

  9. Obtenção do módulo dinâmico de misturas asfálticas com agregados sintéticos de argila calcinada, utilizando o ensaio de compressão diametral

    Directory of Open Access Journals (Sweden)

    Fábio Roberto Garcia Nunes

    2009-11-01

    Full Text Available

    No Brasil, o módulo dinâmico de misturas asfálticas ainda é pouco utilizado, sobretudo por ser, em regra, obtido por intermédio do estado de compressão ou da tração axial, a necessitar, em razão disso, de corpos de prova com aproximadamente 200 mm de altura, a partir de um compactador giratório. Tal imperativo dificulta os estudos realizados com amostras retiradas diretamente do pavimento. Neste trabalho, determinou-se o citado parâmetro por meio do ensaio de compressão diametral em corpos de prova compactados (Marshall de misturas asfálticas, nas dimensões 101,5 × 63,50 mm. Figuraram como agregados graúdos os agregados sintéticos de argila calcinada (ASAC. Os resultados se mostraram equivalentes entre as misturas asfálticas com ASAC e segundo o ensaio de compressão diametral com aqueles obtidos pelo trabalho de KING (2004, quando utilizado o ensaio de compressão axial.

  10. SPIN-UP and Preparing Undergraduate Physics Majors for Careers in Industry

    Science.gov (United States)

    Howes, Ruth

    2011-03-01

    Seven years ago, the Strategic Programs for Innovations in Undergraduate Physics (SPIN-UP) Report produced by the National Task Force on Undergraduate Physics identified several key characteristics of thriving undergraduate physics departments including steps these departments had taken to prepare students better for careers in industry. Today statistical data from AIP shows that almost 40% of students graduating with a degree in physics seek employment as soon as they graduate. Successful undergraduate physics programs have taken steps to adapt their rigorous physics programs to ensure that graduating seniors have the skills they need to enter the industrial workplace as well as to go on to graduate school in physics. Typical strategies noted during a series of SPIN-UP workshops funded by a grant from NSF to APS, AAPT, and AIP include flexible curricula, early introduction of undergraduates to research techniques, revised laboratory experiences that provide students with skills they need to move directly into jobs, and increased emphasis on ``soft'' skills such as communication and team work. Despite significant success, undergraduate programs face continuing challenges in preparing students to work in industry, most significantly the fact that there is no job called ``physicist'' at the undergraduate level. supported by grant NSF DUE-0741560.

  11. Using a Vaccine Proposal Assignment to Help Students Synthesize Topics Covered in an Undergraduate Immunology Course

    Directory of Open Access Journals (Sweden)

    Rebecca L. Sparks-Thissen

    2015-08-01

    Full Text Available Undergraduate students often have difficulty keeping track of all the pieces of the immune response and how they relate to each other.  To help students synthesize the information in an upper-level, undergraduate immunology course, the students in my course investigate the immune response to pathogen of their choosing and then use that information to design a vaccine to that pathogen.

  12. Is The Healing Force Of Music Far Away From The Undergraduate Music Education Students?

    OpenAIRE

    Erol Demirbatir; Nuran Bayram; Nazan Bilgel

    2012-01-01

    Depression, anxiety and stress are common among undergraduate students and a world-wide phenomenon. In this study we wanted to assess depression, anxiety and stress levels as well as burnout and vigor among undergraduate music education students in one Turkish university and compare the results with the results of medical students from the same institution. We collected data from 160 music education and 928 medical students by self reporting using DASS-42 (Depression-Anxiety-Stress Scale-42),...

  13. Can undergraduate students learn effectuation?

    DEFF Research Database (Denmark)

    Robinson, Sarah; Günzel-Jensen, Franziska

    effectuation it must be considered as a critical element from the initial meeting with the students. Teaching undergraduate students presents a range of challenges and teachers of entrepreneurship need to carefully consider how they approach teaching of effectuation in the classroom. Value....../Originality: This paper makes a two important contributions: First, we add to the literature on entrepreneurship education by informing the gap in our understanding of the mis-match between what we want to achieve and what we actually achieve in our classrooms when teaching effectuation. Second, we contribute...

  14. Teaching undergraduate astrophysics with PIRATE

    Science.gov (United States)

    Brodeur, M. S.; Kolb, U.; Minocha, S.; Braithwaite, N.

    2014-12-01

    PIRATE is a 0.43m semi-autonomous research and teaching observatory owned by The Open University, UK. Since 2010, it has been reserved for several months of each year for teaching astronomy in the OU's undergraduate programme. As students in these courses operate PIRATE remotely rather than travelling to the observatory itself, we chose to investigate whether effective learning was adversely affected by the absence of a more traditional `hands on' experience. We discuss student perspectives on the technologies employed (i.e., remote and virtual investigations), the impact these had on perceived course outcomes, and consider implications for future teaching and outreach.

  15. Mechanics problems in undergraduate physics

    CERN Document Server

    Strelkov, S P

    2013-01-01

    Problems in Undergraduate Physics, Volume I: Mechanics focuses on solutions to problems in physics. The book first discusses the fundamental problems in physics. Topics include laws of conservation of momentum and energy; dynamics of a point particle in circular motion; dynamics of a rotating rigid body; hydrostatics and aerostatics; and acoustics. The text also offers information on solutions to problems in physics. Answers to problems in kinematics, statics, gravity, elastic deformations, vibrations, and hydrostatics and aerostatics are discussed. Solutions to problems related to the laws of

  16. Easy computer assisted teaching method for undergraduate surgery

    OpenAIRE

    Agrawal, Vijay P

    2015-01-01

    Use of computers to aid or support the education or training of people has become commonplace in medical education. Recent studies have shown that it can improve learning outcomes in diagnostic abilities, clinical skills and knowledge across different learner levels from undergraduate medical education to continuing medical education. It also enhance the educational process by increasing access to learning materials, standardising the educational process, providing opportunities for asynchron...

  17. Academic ethical awareness among undergraduate nursing students.

    Science.gov (United States)

    Cho, Ok-Hee; Hwang, Kyung-Hye

    2017-01-01

    Academic ethical awareness is an important aspect especially for nursing students who will provide ethical nursing care to patients in future or try to tread the path of learning toward professional acknowledgement in nursing scholarship. The purpose of this study was to explore academic ethical awareness and its related characteristics among undergraduate nursing students. This study commenced the survey with cross-sectional, descriptive questions and enrolled convenient samples of 581 undergraduate nursing students from three universities in South Korea. It was investigated with structured questionnaires including general characteristics and academic ethical awareness related. Ethical considerations: This study was reviewed and approved by the Institutional Review Board at National University. Academic ethical awareness was the highest regarding behaviors violating the respect or confidentiality of patients and cheating on exams, while it was the lowest for inappropriate behaviors in class. From the result of general characteristics difference, male students showed higher score than female students in relative; first-year students showed higher score than other year students; the higher score was rated from students who were highly satisfied with their major than the other not satisfied with their major; and students with low academic stress showed higher ethical awareness score than persons with higher stress. Personal behaviors were rated with low ethical awareness in relative, but items related to public rules and actual effects on patients or others were rated with higher score. Nursing satisfaction and academic stress are main factors on ethical awareness. To improve overall ethical awareness level of nursing students, it is required to provide more education about the importance of personal behaviors in class and need to improve the understanding of how it will be connected with future situation and effect.

  18. Assessing Student Outcomes of Undergraduate Research with URSSA, the Undergraduate Student Self-Assessment Instrument

    Science.gov (United States)

    Laursen, S. L.; Weston, T. J.; Thiry, H.

    2012-12-01

    graphs, and as raw, downloadable data. Finally, URSSA has high content validity based on its research grounding and rigorous development. We will present examples of how URSSA has been used in evaluations of UR programs. A multi-year evaluation of a university-based UR program shows that URSSA items are sensitive to differences in students' prior level of experience with research. For example, experienced student researchers reported greater gains than did their peers new to UR in understanding the process of research and in coming to see themselves as scientists. These differences are consistent with interview data that suggest a developmental progression of gains as students pursue research and gain confidence in their ability to contribute meaningfully. A second example comes from a multi-site evaluation of sites funded by the National Science Foundation's Research Experience for Undergraduates (REU) program in Biology. This study acquired data from nearly 800 students at some 60 Bio REU sites in 2010 and 2011. Results reveal differences in gains among demographic groups, and the general strength of these well-planned programs relative to a comparison sample of UR programs that are not part of REU. Our presentation will demonstrate the evaluative use of URSSA and its potential applications to undergraduate research in the geosciences.

  19. Undergraduate International Studies and Foreign Language Program

    Science.gov (United States)

    Office of Postsecondary Education, US Department of Education, 2012

    2012-01-01

    The Undergraduate International Studies and Foreign Language Program provides funds to institutions of higher education, a consortia of such institutions, or partnerships between nonprofit organizations and institutions of higher education to plan, develop, and implement programs that strengthen and improve undergraduate instruction in…

  20. Undergraduates Perspectives on Sex Education and Teenage ...

    African Journals Online (AJOL)

    This study examines undergraduates' perspective on sex education and teenage pregnancy in Covenant University, Ota, Ogun State, Nigeria. The study population was 250 undergraduates of Covenant University. Frequency tables, linear regression analysis and analysis of variance were used to analyze the data collected ...

  1. Imitation in Undergraduate Teaching and Learning

    Science.gov (United States)

    Zhou, Jiangyuan; Guo, Wei

    2016-01-01

    Research in developmental psychology and neuroscience has demonstrated the critical role of imitation in human learning. Self-report questionnaires collected from 456 undergraduate students in two U.S. institutions and one Chinese institution demonstrated that undergraduate students from both U.S. and Chinese cultures used various imitations in…

  2. Undergraduate Research as Engaged Student Learning

    Science.gov (United States)

    Wolf, Lorraine W.

    2018-01-01

    This chapter discusses the impact of undergraduate research as a form of engaged student learning. It summarizes the gains reported in post-fellowship assessment essays acquired from students participating in the Auburn University Undergraduate Research Fellowship Program. The chapter also discusses the program's efforts to increase opportunities…

  3. Journal of Undergraduate Research, Volume VIII, 2008

    Energy Technology Data Exchange (ETDEWEB)

    Stiner, K. S.; Graham, S.; Khan, M.; Dilks, J.; Mayer, D.

    2008-01-01

    Th e Journal of Undergraduate Research (JUR) provides undergraduate interns the opportunity to publish their scientific innovation and to share their passion for education and research with fellow students and scientists. Fields in which these students worked include: Biology; Chemistry; Computer Science; Engineering; Environmental Science; General Sciences; Materials Sciences; Medical and Health Sciences; Nuclear Sciences; Physics; Science Policy; and Waste Management.

  4. Students' perspectives of undergraduate research methods ...

    African Journals Online (AJOL)

    Introduction: in this study we used a model of adult learning to explore undergraduate students' views on how to improve the teaching of research methods and biostatistics. Methods: this was a secondary analysis of survey data of 600 undergraduate students from three medical schools in Uganda. The analysis looked at ...

  5. Investigation of Undergraduate Students' Environmental Attitudes

    Science.gov (United States)

    Köse, Sacit; Savran Gencer, Ayse; Gezer, Kudret; Erol, Gül Hanim; Bilen, Kadir

    2011-01-01

    Environmental education has been viewed as an important way to educate students about environmental issues beginning from pre-school to higher education. This study is a part of this field- namely, undergraduate environmental education. The purpose of the study is to explore undergraduate students' attitudes towards environment at the end of the…

  6. A Review of Undergraduate Mentoring Programs

    Science.gov (United States)

    Gershenfeld, Susan

    2014-01-01

    This review summarizes published studies on undergraduate mentoring programs from 2008 to 2012. Twenty studies met the inclusion criteria, which included empirical research on formal mentoring programs with undergraduate students as mentees or mentors. Each study was assessed based on limitations identified in two earlier reviews of the mentoring…

  7. Causes of Sexual Promiscuity Among Female Undergraduate ...

    African Journals Online (AJOL)

    This study investigated causes of sexual promiscuity among female undergraduate students in university of Lagos. The sample comprised 150 female undergraduate students randomly selected from all the five female hostels in University of Lagos. A researcher-constructed questionnaire was administered to test the three ...

  8. Reliability Estimates for Undergraduate Grade Point Average

    Science.gov (United States)

    Westrick, Paul A.

    2017-01-01

    Undergraduate grade point average (GPA) is a commonly employed measure in educational research, serving as a criterion or as a predictor depending on the research question. Over the decades, researchers have used a variety of reliability coefficients to estimate the reliability of undergraduate GPA, which suggests that there has been no consensus…

  9. Music undergraduates' usefulness and importance expectations: The Bologna Process from an Australian university perspective

    Directory of Open Access Journals (Sweden)

    Dominic Harvey

    2016-07-01

    Full Text Available AbstractThe Bologna Process model of higher education has been introduced into some Australian universities since 2008. This model promoted university study through a liberal arts philosophy that advanced a worldview approach at the undergraduate level. The model generalised the student experience and eliminated undergraduate specialisation. An interesting situation for music undergraduate study thus arose. Expertise and expert performance research has argued an opposing educational approach, namely: Extensive long-term commitment through focused practical engagement and specialised tuition as prerequisites to achieving musical mastery, especially in performance. Motivation research has shown that the majority of this specialised development in pre-university years would be accessed and reinforced predominantly through private music tuition. Drawing on this contextual literature, commencing university music undergraduates would have expectations of their prospective study founded from two historical influences. The first: How undergraduates had accessed pre-university music tuition. The second: How and in what ways undergraduates’ pre-university musical activities were experienced and reinforced. Using usefulness and importance measures, the study observed the expectations of students about to commence music undergraduate studies at three representative Australian university music schools. One of these universities operated the Bologna styled model. No other known Australian study has investigated this implementation for any effects upon music undergraduate expectations. How much commencing music undergraduates would draw on their pre-university music instruction and experiences to predict their usefulness and importance expectations formed the basis for this investigation. Strong relationships between usefulness and importance were found across all units of study. Despite strong correlations across all units of study between usefulness and

  10. Undergraduate experiments on statistical optics

    International Nuclear Information System (INIS)

    Scholz, Ruediger; Friege, Gunnar; Weber, Kim-Alessandro

    2016-01-01

    Since the pioneering experiments of Forrester et al (1955 Phys. Rev. 99 1691) and Hanbury Brown and Twiss (1956 Nature 177 27; Nature 178 1046), along with the introduction of the laser in the 1960s, the systematic analysis of random fluctuations of optical fields has developed to become an indispensible part of physical optics for gaining insight into features of the fields. In 1985 Joseph W Goodman prefaced his textbook on statistical optics with a strong commitment to the ‘tools of probability and statistics’ (Goodman 2000 Statistical Optics (New York: John Wiley and Sons Inc.)) in the education of advanced optics. Since then a wide range of novel undergraduate optical counting experiments and corresponding pedagogical approaches have been introduced to underpin the rapid growth of the interest in coherence and photon statistics. We propose low cost experimental steps that are a fair way off ‘real’ quantum optics, but that give deep insight into random optical fluctuation phenomena: (1) the introduction of statistical methods into undergraduate university optical lab work, and (2) the connection between the photoelectrical signal and the characteristics of the light source. We describe three experiments and theoretical approaches which may be used to pave the way for a well balanced growth of knowledge, providing students with an opportunity to enhance their abilities to adapt the ‘tools of probability and statistics’. (paper)

  11. Designing Effective Undergraduate Research Experiences

    Science.gov (United States)

    Severson, S.

    2010-12-01

    I present a model for designing student research internships that is informed by the best practices of the Center for Adaptive Optics (CfAO) Professional Development Program. The dual strands of the CfAO education program include: the preparation of early-career scientists and engineers in effective teaching; and changing the learning experiences of students (e.g., undergraduate interns) through inquiry-based "teaching laboratories." This paper will focus on the carry-over of these ideas into the design of laboratory research internships such as the CfAO Mainland internship program as well as NSF REU (Research Experiences for Undergraduates) and senior-thesis or "capstone" research programs. Key ideas in maximizing student learning outcomes and generating productive research during internships include: defining explicit content, scientific process, and attitudinal goals for the project; assessment of student prior knowledge and experience, then following up with formative assessment throughout the project; setting reasonable goals with timetables and addressing motivation; and giving students ownership of the research by implementing aspects of the inquiry process within the internship.

  12. Efeito de diferentes tipos de argilas e modificadores orgânicos na morfologia e propriedades térmicas dos nanocompósitos de PET Effect of different types of clays and organic modifiers on the morphology and thermal properties of PET nanocomposites

    OpenAIRE

    Itamara Farias Leite; Oscar Loureiro Malta; Claudia M. O. Raposo; Luís Eduardo Canedo; Laura H. de Carvalho; Suédina M. de L. Silva

    2011-01-01

    Argilas bentoníticas natural e purificada (AN e AP) e montmorilonita (MMT), modificadas organicamente com os sais alquil amônio (A), alquil fosfônio (F) e com uma mistura de ambos (A e F), foram incorporadas, em teor de 1% em massa, ao PET pelo processo de fusão. Os híbridos obtidos foram caracterizados por difratometria de raios X (DRX), termogravimetria (TG), calorimetria exploratória diferencial (DSC) e microscopia eletrônica de transmissão (MET). Nanocompósitos com morfologia intercalada ...

  13. Organofilização de argilas bentoníticas com tensoativos não- iônicos visando seu uso em fluidos de perfuração base óleo Nonionic surfactants organophilization bentonite clays aiming their use in oil base drilling fluids

    Directory of Open Access Journals (Sweden)

    I. A. Silva

    2012-09-01

    Full Text Available O uso de tensoativos não iônicos vem substituindo os tradicionais tensoativos iônicos dentre outros motivos pelo seu elevado potencial de resistência a degradação térmica. Assim, este trabalho tem por objetivo o desenvolvimento de argilas organofílicas através da incorporação de tensoativos não iônicos visando seu uso em fluidos de perfuração de poços de petróleo base óleo. Argilas bentoníticas natural, industrializadas e organofilizadas foram caracterizadas por análise química, difração de raios X e análises térmicas. Após a organofilização foi realizado o inchamento de Foster, visando a escolha dos tensoativos mais adequados aos meios líquidos orgânicos dispersantes: éster, diesel e parafina. Com as dispersões obtidas foram determinadas as propriedades reológicas através de viscosidades aparente e plástica. Os resultados evidenciaram que as argilas organofilicas apresentaram um aumento do espaçamento interlamelar e que as dispersões apresentaram propriedades reológicas dentro das especificações da Petrobrás, para uso como argilas organofílicas em fluidos de perfuração em base óleo.The nonionic surfactants use is replacing the traditional ionic surfactants among other reasons because of its high resistance to thermal degradation potential. This work aims the organoclays development through the nonionic surfactants incorporation in order to oil base drilling fluids use. The natural bentonite clay, and industrialized organophilizated were characterized by chemical analysis, X-ray diffraction and thermal analysis. After, the clay organophilization was performed by Foster swelling, seeking the most appropriate choice of surfactants to the liquid media organic dispersants, ester, paraffin and diesel. With the obtained dispersions were determined by plastic and apparent viscosities the rheological properties. The results showed that organoclays increase in the interlayer spacing and that the dispersions

  14. Composição de argilas organofílicas obtida com tensoativo não-iônico para fluidos de perfuração base orgânica Compositions of organoclays obtained with nonionic surfactant for organic base drilling fluids

    Directory of Open Access Journals (Sweden)

    F. K. A. Sousa

    2011-06-01

    Full Text Available Este trabalho tem como objetivo o estudo do efeito da composição de misturas de argilas bentoníticas organofílicas na reologia de fluidos de perfuração base orgânica. As composições foram estudadas por meio de delineamento de misturas, viscosidade aparente, plástica e limite de escoamento e dos testes recomendados pelo Instituto Americano de Petróleo, API (peso específico, estabilidade elétrica e volume de filtrado. Os resultados foram comparados aos obtidos com fluido padrão utilizado pela Petrobrás. Dentre as composições desenvolvidas, duas apresentaram potencial de utilização em fluidos de perfuração base orgânica, atendendo a maioria das propriedades. Foram desenvolvidas composições contendo as argilas de qualidade "inferior" (Bofe e verde-lodo em maior quantidade e o mínimo da argila Chocolate UBM, considerada como a melhor argila da região das minas de Boa Vista, PB, para uso em fluidos de perfuração.This paper aims to study the effect of compositions of bentonite organoclays for drilling fluids containing organic base. The compositions were studied using the mixture design of experiment methodology and their performance evaluated by rheological behavior (flow curves, the initial gel, final gel apparent viscosity, plastic, and flow limit and the tests recommended by API (specific gravity, electrical stability and filtrate volume. Results were compared to those obtained with standard fluid used by Petrobrás. The results showed that among the developed compositions, two compositions showed promising potential for use in organic drilling fluids, achieving most of the limits of the normalization. Compositions containing high amount of low quality clays (Bofe and verde-lodo and a minimum of high quality clay (Chocolate of the mines of Boa Vista PB were developed for using in drilling fluids operation.

  15. Depression in Asian-American and Caucasian undergraduate students.

    Science.gov (United States)

    Young, Christina B; Fang, Daniel Z; Zisook, Sidney

    2010-09-01

    Depression is a serious and often under-diagnosed and undertreated mental health problem in college students which may have fatal consequences. Little is known about ethnic differences in prevalence of depression in US college campuses. This study compares depression severity in Asian-American and Caucasian undergraduate students at the University of California San Diego (UCSD). Participants completed the nine item Patient Health Questionnaire and key demographic information via an anonymous online questionnaire. Compared to Caucasians, Asian-Americans exhibited significantly elevated levels of depression. Furthermore, Korean-American students were significantly more depressed than Chinese-American, other minority Asian-American, and Caucasian students. In general, females were significantly more depressed than males. Results were upheld when level of acculturation was considered. The demographic breakdown of the student population at UCSD is not representative to that of the nation. These findings suggest that outreach to female and Asian-American undergraduate students is important and attention to Korean-American undergraduates may be especially worthwhile. 2010 Elsevier B.V. All rights reserved.

  16. Undergraduate Education with the WIYN 0.9-m Telescope

    Science.gov (United States)

    Pilachowski, Catherine A.

    2017-01-01

    Several models have been explored at Indiana University Bloomington for undergraduate student engagement in astronomy using the WIYN 0.9-m telescope at Kitt Peak. These models include individual student research projects using the telescope, student observations as part of an observational techniques course for majors, and enrichment activities for non-science majors in general education courses. Where possible, we arrange for students to travel to the telescope. More often, we are able to use simple online tools such as Skype and VNC viewers to give students an authentic observing experience. Experiences with the telescope motivate students to learn basic content in astronomy, including the celestial sphere, the electromagnetic spectrum, telescopes and detectors, the variety of astronomical objects, date reduction processes, image analysis, and color image creation and appreciation. The WIYN 0.9-m telescope is an essential tool for our program at all levels of undergraduate education

  17. Introduction of basic obstetrical ultrasound screening in undergraduate medical education.

    Science.gov (United States)

    Hamza, A; Solomayer, E-F; Takacs, Z; Juhasz-Boes, I; Joukhadar, R; Radosa, J C; Mavrova, R; Marc, W; Volk, T; Meyberg-Solomayer, G

    2016-09-01

    Teaching ultrasound procedures to undergraduates has recently been proposed to improve the quality of medical education. We address the impact of applying standardized ultrasound teaching to our undergraduates. Medical students received an additional theoretical and practical course involving hands-on ultrasound screening during their mandatory practical training week in obstetrics and gynecology. The students' theoretical knowledge and fetal image recognition skills were tested before and after the course. After the course, the students were asked to answer a course evaluation questionnaire. To standardize the teaching procedure, we used Peyton's 4-Step Approach to teach the skills needed for a German Society of Ultrasound in Medicine Level 1 ultrasound examiner. The multiple-choice question scores after the course showed statistically significant improvement (50 vs. 80 %; P education that should be further evaluated, standardized, and developed.

  18. Neck Pain Occurrence and Characteristics in Nigerian University Undergraduates

    Directory of Open Access Journals (Sweden)

    Olufunke Patience Iroko

    2010-06-01

    Full Text Available AIM: University students seem to be a high risk group for neck pain which often leads to diminished concentration and academic performance among them. This study examined the occurrence and characteristics of neck pain in undergraduate students from the University of Ibadan, Nigeria. METHOD: One thousand and sixty nine (512 male and 557 female undergraduate students with the mean age of 23.49 ± 2.54 years responded in this cross-sectional survey. An adapted questionnaire that sought information on demographics, occurrence, characteristics and the consequence of neck pain on activities of daily living served as the survey instrument. Data were summarized using descriptive statistics. RESULTS: Lifetime prevalence and current frequency of neck pain among the respondents was 34.9% and 9.8% respectively. Female students had a higher preponderance of lifetime neck pain prevalence than their male counterparts (52.8 vs. 47.2%. There was higher frequency of neck pain after admission into the university than before (68.6 vs. 28.7%. Neck pain increased according to level of study and commoner among clinical students. 20% of the respondents reported chronic neck pain and was commoner in males than females (13% vs. 7% females. Seats without back supports used during lectures (48.0%, long reading hours (31.4%, poor self perpetuating posture (16.6%, and types of pillow used when sleeping (14.2% were the most implicated predisposing factors to neck pain. Reading (49.7% and concentration on school work (27.9% were the most limited activities of daily living. CONCLUSION: Neck pain is common among Nigerian university undergraduate students and affects females than males. The prevalence increased with higher level of study and commoner among clinical students. Neck pain mostly affects reading and concentration on school work among university undergraduate students. [TAF Prev Med Bull 2010; 9(3.000: 167-174

  19. Quality evaluation in distance undergraduate courses in Brazil

    Directory of Open Access Journals (Sweden)

    Carla Netto

    2015-01-01

    of distance-run undergraduate courses (D.Ed.. The data from the instruments were then processed according to Discourse Textual Analysis (DTA. The evaluation process for undergraduate distance education courses in the USA was evaluated by identifying those quality indicators adopted by international accreditation agencies. Based on the analysis of the evaluation process of distance undergraduate courses in Brazil, a further study was carried out about the results and impacts of the Brazilian system, especially the indicators used and the level of confidence that existed when measuring the quality of distance-based undergraduate courses. As a result of this research, our researchers observed there was a real need to establish a quality assurance benchmark in Brazil along these conceptual lines, namely one that represents quality in D.Ed. and includes the usage of indicators that reflect the excellence of the degree course that are offered. This level of excellence is assessed on the basis of the training, experience, knowledge and skills of the evaluators, as well as on clear, precise and transparent criteria for measuring the quality-based distance degree courses. On the other hand, it is also necessary to be equipped with a Bank of Evaluators – not only for those who work in this field, but also for a group of experts that is large enough to implement the Brazilian evaluation system in distance education programs.

  20. Teaching and Research at Undergraduate Institutions

    Science.gov (United States)

    Garg, Shila

    2006-03-01

    My own career path has been non-traditional and I ended up at a primarily undergraduate institution by pure accident. However, teaching at a small college has been extremely rewarding to me, since I get to know and interact with my students, have an opportunity to work with them one-on-one and promote their intellectual growth and sense of social responsibility. One of the growing trends at undergraduate institutions in the past decade has been the crucial role of undergraduate research as part of the teaching process and the training of future scientists. There are several liberal arts institutions that expect research-active Faculty who can mentor undergraduate research activities. Often faculty members at these institutions consider their roles as teacher-scholars with no boundary between these two primary activities. A researcher who is in touch with the developments in his/her own field and contributes to new knowledge in the field is likely to be a more exciting teacher in the classroom and share the excitement of discovery with the students. At undergraduate institutions, there is generally very good support available for faculty development projects in both teaching and research. Often, there is a generous research leave program as well. For those who like advising and mentoring undergraduates and a teaching and learning centered paradigm, I will recommend a career at an undergraduate institution. In my presentation, I will talk about how one can prepare for such a career.

  1. Teaching Culture and Improving Language Skills through a Cinematic Lens: A Course on Spanish Film in the Undergraduate Spanish Curriculum.

    Science.gov (United States)

    Stephens, Julie L.

    2001-01-01

    Explores the role of a course on Spanish cinema in an undergraduate, university-level curriculum in terms of its potential to acquaint students with significant cultural issues and to develop language skills. (Author/VWL)

  2. Eficácia da aromaterapia na redução de níveis de estresse e ansiedade em alunos de graduação da área da saúde: estudo preliminar Effectiveness of aromatherapy in reducing stress and anxiety levels in undergraduate health science students: a preliminary study

    Directory of Open Access Journals (Sweden)

    Cassandra Santantonio de Lyra

    2010-03-01

    Full Text Available Este estudo teve como objetivo verificar a eficácia de aromaterapia na diminuição de níveis de estresse e ansiedade (traço e estado de alunos de graduação de cursos na área da saúde. Participaram do estudo 36 sujeitos, com idade entre 18 e 29 anos, que foram divididos entre os que receberam tratamento (grupo aroma, n=18 e o grupo controle (n=18. Os sujeitos foram avaliados quanto a níveis de estresse e ansiedade antes e após o período de intervenção, pela Lista de Sintomas de Estresse e pelo Inventário de Ansiedade Traço e Estado. O tratamento de aromaterapia consistiu em sete sessões (duas vezes por semana de dez minutos de inalação com uma sinergia de óleos essenciais elaborada especificamente. Os escores de estresse e ansiedade antes e depois do tratamento foram comparados estatisticamente, com nível de significância de 5% (pThe purpose of this study was to assess the efficacy of aromatherapy in decreasing stress and anxiety levels in undergraduate health science students. Thirty-six students aged 18 to 29 were divided into those who received treatment (aroma group, n=18 and a control group (n=18. All subjects were assessed as to stress and anxiety levels before and after the treatment, by means of the List of Stress Symptoms and the State-Trait Anxiety Inventory. The aromatherapy treatment consisted in twice weekly, 10-minute inhalations of a synergy of essential oils made specifically for this study, for a total of 7 sessions. Stress and anxiety scores measured before and after treatment were statistically compared, with significance level set at 5% (p<0.05. The aroma group showed a significant (p<0,05 decrease in stress (less 24% and anxitey (less 13% and 19% levels, while in control group only a significant, though lesser (11% stress level decrease could be noticed. Aromatherapy thus proved effective in reducing stress and anxiety levels in graduate health students, but there is still great need to further studies to

  3. Hillslope curvature, clay mineralogy, and phosphorus adsorption in an Alfisol cultivated with sugarcane Curvaturas de relevo, mineralogia da argila e adsorção de fósforo em Argissolo cultivado com cana-de-açúcar

    Directory of Open Access Journals (Sweden)

    Diogo Mazza Barbieri

    2009-12-01

    Full Text Available Hillslope curvatures are associated with specific environments that correlate to chemical and mineralogical attributes of soil, so determining specific management zones. Phosphorus is one of the main limiting factors to the development and longevity of sugarcane. The type and the mineralogical constitution of the clay fraction play an important role in the phosphorus (P adsorption of soil. High proportion of gibbsite (Gb in soil may be the major responsible for P adsorption. The relationships among spatial variability as a function of hillslope curvature, the proportion of kaolinite (Kt and Gb, and phosphorus adsorption were evaluated in an Alfisol cultivated with sugarcane. Two plots of 1 ha of a concave and a convex hillslope area were selected and 121 samples were collected in each area. The maximum P adsorption was determined in six samples taken randomly in each area. Data were submitted to descriptive statistical and geostatistical analysis. The lowest average values of available phosphorus were found in the convex area. In this area, the proportion of gibbsite, expressed by the values of the ratio [Gb/(Gb + Ct] and the values of maximum adsorption capacity of phosphorus were higher than in the concave area.As curvaturas do relevo promovem pedoambientes específicos que condicionam os atributos químicos e mineralógicos do solo e podem auxiliar na definição de zonas específicas de manejo. O fósforo (P é um dos principais elementos limitantes ao desenvolvimento e longevidade do canavial. O teor e a constituição mineralógica da fração argila assumem papel importante na disponibilidade do P, sendo que a gibbsita (Gb, quando presente em altas proporções no solo, pode ser a principal responsável pela sua adsorção e indisponibilidade. Investigaram-se as relações e a variabilidade espacial da adsorção de P e a ocorrência de caulinita (Ct e gibbsita na fração argila de um Argissolo Vermelho-Amarelo eutrófico originado de

  4. Relação entre o alumínio extraível com KCl e oxalato de amônio e a mineralogia da fração argila, em solos ácidos brasileiros

    Directory of Open Access Journals (Sweden)

    Gabriel Octávio de Mello Cunha

    2014-10-01

    Full Text Available Em solos ácidos de ambiente mais tropical com esmectitas, assim como em solos altamente tamponados de ambiente subtropical, contendo esmectita com hidroxi-Al entrecamadas (EHE e, ou, vermiculita com hidroxi-Al entrecamadas (VHE, os teores de Al-KCl podem ser excepcionalmente altos; entretanto, em alguns casos não se manifestam efeitos fitotóxicos do elemento nas culturas. O Al "trocável" é tradicionalmente quantificado no extrato da solução de KCl 1 mol L-1 (Al-KCl, mas nem sempre esse elemento provém unicamente de formas trocáveis. Este trabalho objetivou investigar relações entre o Al extraído com solução de KCl e de oxalato de amônio com a mineralogia da fração argila. A quantificação do Al nos extratos de KCl e oxalato de amônio foi feita, respectivamente, por titulação com NaOH 0,02 mol L-1 padronizado e por espectrofotometria de absorção atômica. Foram utilizadas amostras de dois horizontes (A e B de 12 perfis de solo de cinco estados brasileiros (AC, PE, BA, RS e SC, com diferentes características mineralógicas, todos com teores de Al-KCl superior a 4 cmol c kg-1 no horizonte B. Dois perfis de SC (Rancho Queimado e Curitibanos, com níveis mais baixos de Al-KCl, foram incluídos para comparação. Os altos teores de Al-KCl evidenciaram-se relacionados com a mineralogia dos solos estudados. Nos solos ácidos com mais esmectitas, drenagem moderada ou imperfeita e oscilação do lençol freático houve evidências morfológicas, confirmadas pelas análises mineralógicas, de que no clima atual ocorre um processo de destruição de argilas, liberando Al que precipita como compostos amorfos. A alta concentração salina da solução de KCl dissolve parcialmente tais compostos, superestimando as formas trocáveis desse elemento, principalmente nos horizontes subsuperficiais. Nos solos ácidos do ambiente subtropical, os teores de Al-KCl também foram altos, embora com valores mais baixos do que nos com predomínio de

  5. Tratamento de águas residuárias de suinocultura em sistemas alagados construídos, com Chrysopogon zizanioides e Polygonum punctatum cultivadas em leito de argila expandida

    Directory of Open Access Journals (Sweden)

    Nilton de Freitas Souza Ramos

    2016-10-01

    Full Text Available RESUMO No presente estudo avaliou-se a remoção de demanda bioquímica de oxigênio (DBO, nitrogênio total (NT e fósforo total (PT da água residuária de suinocultura (ARS em sistemas alagados construídos (SACs de escoamento horizontal subsuperficial, além da contribuição das espécies vegetais cultivadas: Polygonum punctatum (erva-de-bicho e Chrysopogon zizanioides (capim-vetiver. Foram implantados três SACs, utilizando-se argila expandida como meio suporte, sendo um cultivado com P. punctatum (SACE, outro cultivado com C. zizanioides (SACV e um mantido como controle, sem cultivo (SACC. Para um tempo de retenção hidráulica nominal (τ de 3,2 dias, observou-se remoção de DBO, NT e PT, ao longo do período experimental, com eficiências médias de 85, 38 e 51% (SACC, 89, 48 e 69% (SACE e 81, 36 e 45% (SACV, respectivamente. O melhor desempenho foi observado no SACE. Foram obtidas, em termos de matéria seca, produtividades de 2,79 e 1,91 g m-2 d-1 e remoções de NT de 1,54 e 1,01% e de PT de 0,81 e 1,19%, da carga aplicada, para a erva-de-bicho e o capim-vetiver, respectivamente.

  6. Tratamento de águas residuárias de suinocultura em sistemas alagados construídos, com Chrysopogon zizanioides e Polygonum punctatum cultivadas em leito de argila expandida

    Directory of Open Access Journals (Sweden)

    Nilton de Freitas Souza Ramos

    Full Text Available RESUMO No presente estudo avaliou-se a remoção de demanda bioquímica de oxigênio (DBO, nitrogênio total (NT e fósforo total (PT da água residuária de suinocultura (ARS em sistemas alagados construídos (SACs de escoamento horizontal subsuperficial, além da contribuição das espécies vegetais cultivadas: Polygonum punctatum (erva-de-bicho e Chrysopogon zizanioides (capim-vetiver. Foram implantados três SACs, utilizando-se argila expandida como meio suporte, sendo um cultivado com P. punctatum (SACE, outro cultivado com C. zizanioides (SACV e um mantido como controle, sem cultivo (SACC. Para um tempo de retenção hidráulica nominal (τ de 3,2 dias, observou-se remoção de DBO, NT e PT, ao longo do período experimental, com eficiências médias de 85, 38 e 51% (SACC, 89, 48 e 69% (SACE e 81, 36 e 45% (SACV, respectivamente. O melhor desempenho foi observado no SACE. Foram obtidas, em termos de matéria seca, produtividades de 2,79 e 1,91 g m-2 d-1 e remoções de NT de 1,54 e 1,01% e de PT de 0,81 e 1,19%, da carga aplicada, para a erva-de-bicho e o capim-vetiver, respectivamente.

  7. Alterações do nível pressórico e fatores de risco em graduandos de enfermagem Alteraciones del nível de la presión y factores de riesgo en profesionales graduandos en enfermería Risk factors and alterations in blood pressure levels in undergraduate nursing students

    Directory of Open Access Journals (Sweden)

    Alba Lúcia Botura Leite de Barros

    2009-12-01

    y enfermedad cardiovascular. Conclusión: De acuerdo con los resultados, se deben cambiar hábitos y estilo de vida de modo que sean más saludables para los futuros enfermeros.Objectives: To identify risk factors and alterations in blood pressure levels in undergraduate nursing students and to examine the associations between the risk factors and blood pressure levels. Methods: A cross-sectional descriptive study was conducted between November 2006 and May 2007. The sample consisted of 120 undergraduate nursing students from the Federal University of São Paulo. A specific questionnaire on risk factors for high blood pressure was used. Blood pressure measures were taken and recorded. Fisher's exact test was used to determine associations between risk factors and high blood pressure. Results: The majority of participants (92.5% had normal blood pressure levels. A few students had high (4.2% or borderline (3.3% blood pressure levels. Students had some of the risk factors for high blood pressure and cardiovascular diseases. Conclusion: There is a need to emphasize lifestyle changes among those future nurses.

  8. Sources of stress and psychological morbidity among undergraduate physiotherapy students.

    Science.gov (United States)

    Walsh, J M; Feeney, C; Hussey, J; Donnellan, C

    2010-09-01

    Professional education can be a stressful experience for some individuals, and may impact negatively on emotional well-being and academic performance. Psychological morbidity and associated sources of stress have not been investigated extensively in physiotherapy students. This study explored sources of stress, psychological morbidity and possible associations between these variables in undergraduate physiotherapy students. A questionnaire-based survey. The Undergraduate Sources of Stress Questionnaire was used to identify sources of stress, and the General Health Questionnaire-12 (GHQ-12) was used to rate the prevalence of psychological morbidity, using a conservative GHQ threshold of 3 to 4 to determine probable 'cases'. Uni- and multivariate tests of correlation were used to analyse the data. An Irish educational institution. One hundred and twenty-five physiotherapy undergraduate students. More than one-quarter of all students (27%) scored above the GHQ threshold, indicating probable psychological morbidity. This is higher than the level of psychological morbidity reported by the general population. Regression analysis showed that academic (beta=0.31, Pphysiotherapy students, with academic and personal issues being the greatest concern. While personal causes of stress such as stressful events and mood are more difficult to control, manipulation of curricular factors may have positive effects on academic sources of stress. Copyright 2010 Chartered Society of Physiotherapy. Published by Elsevier Ltd. All rights reserved.

  9. Quiz gaming competitions for undergraduate medical students ...

    African Journals Online (AJOL)

    Quiz gaming competitions for undergraduate medical students: Questioning the MediQuiz. ... an audience Studies have shown that such quiz games promote active learning, and provide motivational impetus. ... AJOL African Journals Online.

  10. factors influencing condom use among nigerian undergraduates

    African Journals Online (AJOL)

    2012-12-01

    Dec 1, 2012 ... Nigeria. Study design: Both qualitative (focus group discussions) and quantitative (cross-sectional ... Keywords: Condom, unsafe sex, HIV, gender, undergraduates. ..... QUESTIONS: the following may influence condom.

  11. Prevalence and Severity of Depression among Undergraduate ...

    African Journals Online (AJOL)

    Undergraduate Students in Karachi, Pakistan: A Cross. Sectional Study ... questionnaire to appraise the presence and extent of depression among the participants. Their socio- ..... and disability by cause 1990-2020: Global burden of disease ...

  12. Internet Usage and Academic Performance of Undergraduate ...

    African Journals Online (AJOL)

    Internet Usage and Academic Performance of Undergraduate Students in University of Ilorin, Nigeria. ... PROMOTING ACCESS TO AFRICAN RESEARCH. AFRICAN JOURNALS ... This study adopted descriptive survey method. Six faculties ...

  13. Mentored undergraduate research in the geosciences

    Science.gov (United States)

    Judge, Shelley; Pollock, Meagen; Wiles, Greg; Wilson, Mark

    2012-09-01

    There is little argument about the merits of undergraduate research, but it can seem like a complex, resource-intensive endeavor [e.g., Laursen et al., 2010; Lopatto, 2009; Hunter et al., 2006]. Although mentored undergraduate research can be challenging, the authors of this feature have found that research programs are strengthened when students and faculty collaborate to build new knowledge. Faculty members in the geology department at The College of Wooster have conducted mentored undergraduate research with their students for more than 60 years and have developed a highly effective program that enhances the teaching, scholarship, and research of our faculty and provides life-changing experiences for our students. Other colleges and universities have also implemented successful mentored undergraduate research programs in the geosciences. For instance, the 18 Keck Geology Consortium schools (http://keckgeology.org/), Princeton University, and other institutions have been recognized for their senior capstone experiences by U.S. News & World Report.

  14. Immediate field of intervention: undergraduate college Preparation ...

    Indian Academy of Sciences (India)

    ... field of intervention: undergraduate college Preparation: at research institutes and universities The challenge: to transform the disciplines themselves Make them relevant and responsive. First step: create innovative interactions across the higher education spectrum, between Research Institute-University-College.

  15. Factors influencing undergraduates' self-evaluation of numerical competence

    Science.gov (United States)

    Tariq, Vicki N.; Durrani, Naureen

    2012-04-01

    This empirical study explores factors influencing undergraduates' self-evaluation of their numerical competence, using data from an online survey completed by 566 undergraduates from a diversity of academic disciplines, across all four faculties at a post-1992 UK university. Analysis of the data, which included correlation and multiple regression analyses, revealed that undergraduates exhibiting greater confidence in their mathematical and numeracy skills, as evidenced by their higher self-evaluation scores and their higher scores on the confidence sub-scale contributing to the measurement of attitude, possess more cohesive, rather than fragmented, conceptions of mathematics, and display more positive attitudes towards mathematics/numeracy. They also exhibit lower levels of mathematics anxiety. Students exhibiting greater confidence also tended to be those who were relatively young (i.e. 18-29 years), whose degree programmes provided them with opportunities to practise and further develop their numeracy skills, and who possessed higher pre-university mathematics qualifications. The multiple regression analysis revealed two positive predictors (overall attitude towards mathematics/numeracy and possession of a higher pre-university mathematics qualification) and five negative predictors (mathematics anxiety, lack of opportunity to practise/develop numeracy skills, being a more mature student, being enrolled in Health and Social Care compared with Science and Technology, and possessing no formal mathematics/numeracy qualification compared with a General Certificate of Secondary Education or equivalent qualification) accounted for approximately 64% of the variation in students' perceptions of their numerical competence. Although the results initially suggested that male students were significantly more confident than females, one compounding variable was almost certainly the students' highest pre-university mathematics or numeracy qualification, since a higher

  16. Analyzing the Existing Undergraduate Engineering Leadership Skills

    OpenAIRE

    Hamed M. Almalki; Luis Rabelo; Charles Davis; Hammad Usmani; Debra Hollister; Alfonso Sarmiento

    2016-01-01

    Purpose: Studying and analyzing the undergraduate engineering students' leadership skills to discover their potential leadership strengths and weaknesses. This study will unveil potential ways to enhance the ways we teach engineering leadership. The research has great insights that might assist engineering programs to improve curricula for the purpose of better engineering preparation to meet industry's demands. Methodology and Findings: 441 undergraduate engineering students have been s...

  17. Investigation of Undergraduate Students’ Environmental Attitudes

    OpenAIRE

    Sacit KÖSE; Ayse SAVRAN GENCER; Kudret GEZER; Gül Hanım EROL; Kadir BİLEN

    2011-01-01

    Environmental education has been viewed as an important way to educate students about environmental issues beginning from pre-school to higher education. This study is a part of this field- namely, undergraduate environmental education. The purpose of the study is to explore undergraduate students’ attitudes towards environment after the course “Environment, Human, and Society”. In direction of this basic aim, environmental attitudes of university students were e...

  18. Argumentation in undergraduate chemistry laboratories

    Science.gov (United States)

    Walker, Joi Phelps

    To address the need for reform in undergraduate science education a new instructional model called Argument-Driven Inquiry (ADI) was developed and then implemented in a undergraduate chemistry course at a community college in the southeastern United States (Sampson, Walker, & Grooms, 2009; Walker, Sampson, & Zimmerman, in press). The ADI instructional model is designed to give a more central place to argumentation and the role of argument in the social construction of scientific knowledge. This research investigated the growth in the quality of the student generated arguments and the scientific argumentation that took place over the course of a semester. Students enrolled in two sections of General Chemistry I laboratory at the community college participated in this study. The students worked in collaborative groups of three or four. The students were given a variation of the same performance task three times during the semester in order to measure individual ability to use evidence and justify their choice of evidence with appropriate rationale. Five ADI investigations took place during the semester and the laboratory reports for each were collected from each student and the argument section of each report was scored. All the student groups were video recorded five times during the semester as they generated and evaluated arguments and the quality of the group argumentation was assessed using an instrument called the Assessment of Scientific Argumentation in the Classroom (ASAC) observation protocol. As time was the independent variable in this study a repeated measure ANOVA was used to evaluate the significance of student improvement in each area (argumentation, written argument and performance task) over the course of the semester (Trochim, 1999). In addition, a multiple regression analysis was conducted to evaluate how well the ASAC scores predicted individual scores on both the performance task and the written arguments (Green & Salkind, 2005). There was

  19. Importância das espécies minerais no potássio total da fração argila de solos do Triângulo Mineiro Importance of mineral species in total potassium content of clay fraction in soils of the Triângulo Mineiro, Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    V. F. Melo

    2003-10-01

    Full Text Available Poucos trabalhos relacionam a reserva de K em solos desenvolvidos sob clima tropical úmido com os minerais presentes na fração argila. Com esse propósito, coletaram-se amostras de 19 solos no Triângulo Mineiro, originados de diferentes materiais de origem e estádios de desenvolvimento. Dada a significativa ocorrência, tomou-se maior número de amostras no Grupo Bauru, abrangendo todas as formações geológicas encontradas na região. Os teores totais de K foram determinados após digestão das amostras de terra fina e das frações areia, silte e argila com ácidos concentrados (HF, HNO3 e H2SO4. Para avaliar a contribuição de cada espécie mineral nos teores totais de K, amostras da fração argila saturadas por Na foram submetidas a extrações seqüenciais e seletivas de minerais, na seguinte ordem: extração de Al e óxidos de Fe de baixa cristalinidade; extração de óxidos de Fe mais cristalinos; extração de gibbsita e caulinita; extração de minerais do tipo 2:1; extração de feldspatos e minerais resistentes. A composição mineralógica da fração argila refletiu o intenso grau de intemperismo e lixiviação dos solos do Triângulo Mineiro, com baixos teores de minerais de baixa cristalinidade, predomínio de caulinita e presença de outros minerais secundários resistentes. Mesmo com essa mineralogia, a fração argila apresentou o maior teor de K total, principalmente para os solos mais intemperizados. Considerando a abundância de caulinita na fração argila, este mineral foi uma importante fonte de formas não-trocáveis do nutriente. Por outro lado, a contribuição dos óxidos de Fe e de Al de baixa cristalinidade e dos óxidos de Fe mais cristalinos nos teores totais de K da fração argila foi inexpressiva. Em geral, os minerais primários facilmente intemperizáveis (mica e feldspato contribuíram em grande proporção para o K total da fração argila, principalmente para os solos mais jovens desenvolvidos de

  20. Wellness among Undergraduate Students on Academic Probation: Implications for College Counselors

    Science.gov (United States)

    Young, Tabitha L.; Turnage-Butterbaugh, Ian; Degges-White, Suzanne; Mossing, Susan

    2015-01-01

    This study examined levels of wellness among 403 undergraduate students on academic probation. Total wellness, 5 secondary categories of wellness, and 17 third-level categories of wellness are reported within this article. In addition, this study offers norm-group comparisons and demographic influences of wellness in regard to undergraduate…

  1. Analyzing the Psychological Symptoms of Students in Undergraduate Program in Elementary Mathematics Teaching

    Science.gov (United States)

    Masal, Ercan; Koc, Mustafa; Colak, Tugba Seda; Takunyaci, Mithat

    2013-01-01

    The main purpose of this research is to analyse whether there is a difference or not in levels of having psychological symptoms of the students of undergraduate program in elementary mathematics teaching. Another aim of the research is to determine whether the levels of having psychological symptoms of the students differ or not regarding various…

  2. Self-Directed Learning Readiness among Undergraduate Students at Saudi Electronic University in Saudi Arabia

    Science.gov (United States)

    Alfaifi, Mousa S.

    2016-01-01

    This study aimed to determine the level of self-directed learning readiness (SDLR) among undergraduate students at Saudi Electronic University in Saudi Arabia. Also, investigated were potential relationships between the level of self-directed learning readiness and selected demographic variables such as gender and specific college within the…

  3. Professional values in Korean undergraduate nursing students.

    Science.gov (United States)

    Bang, Kyung Sook; Kang, Jeong Hee; Jun, Myung Hee; Kim, Hyun Sook; Son, Haeng Mi; Yu, Su Jeong; Kwon, Mi Kyung; Kim, Ji Soo

    2011-01-01

    Developing professional values among undergraduate nursing students is important since such values are a significant predictor of quality care, clients' recognition, and therefore nurses' job satisfaction. This study explored South Korean nursing students' perception of nursing professional values (NPV) and compared the NPV scores between groups according to participants' demographic characteristics. The study participants comprised of 529 students, mostly female (96.4%), with a mean age of 22.29years, sampled from six universities throughout the country. The NPV scores, measured with the 29-item Likert scale developed by Yeun et al. (2005), were significantly higher in students who entered nursing schools following their aptitude or desire for professional job than in those who entered the schools just because their entrance exam scores were sufficient. The NPV scores were also higher in students who were planning to pursue graduate study than in those who had not yet decided. The NPV scores were significantly different between the six regions, suggesting needs of in-depth studies to understand the underlying reasons. The NPV scores were not correlated, at the .05 level of significance, with academic year, gender, or academic performance. 2010 Elsevier Ltd. All rights reserved.

  4. Advanced interdisciplinary undergraduate program: light engineering

    Science.gov (United States)

    Bakholdin, Alexey; Bougrov, Vladislav; Voznesenskaya, Anna; Ezhova, Kseniia

    2016-09-01

    The undergraduate educational program "Light Engineering" of an advanced level of studies is focused on development of scientific learning outcomes and training of professionals, whose activities are in the interdisciplinary fields of Optical engineering and Technical physics. The program gives practical experience in transmission, reception, storage, processing and displaying information using opto-electronic devices, automation of optical systems design, computer image modeling, automated quality control and characterization of optical devices. The program is implemented in accordance with Educational standards of the ITMO University. The specific features of the Program is practice- and problem-based learning implemented by engaging students to perform research and projects, internships at the enterprises and in leading Russian and international research educational centers. The modular structure of the Program and a significant proportion of variable disciplines provide the concept of individual learning for each student. Learning outcomes of the program's graduates include theoretical knowledge and skills in natural science and core professional disciplines, deep knowledge of modern computer technologies, research expertise, design skills, optical and optoelectronic systems and devices.

  5. Burnout syndrome in nursing undergraduate students

    Directory of Open Access Journals (Sweden)

    Juliana Inhauser Riceti Acioli Barboza

    2007-09-01

    Full Text Available Objectives: To classify nursing students on a socio-demographic basisin order to check whether they are acquainted with the meaning ofthe term burnout syndrome; to check for the presence of the burnoutsyndrome and assess its levels in undergraduate nurses. Methods:A cross-section study was carried out of 102 students at the NursingSchool of the Hospital Israelita Albert Einstein. A questionnaire wasmade up by the authors and applied along with the Maslachs BurnoutInventory (MBI. Results: Ninety-five percent of students were female,aged 18 to 50 years, 86% were single and 51% reported having jobs.Most of the surveyed subjects were not acquainted with the termburnout syndrome. Out of the total of 39 students, 56.9% classified thedisease as being psychological and caused by professional stress. Asfor the mean MBI subscales, it was found that a relatively high mean(28.6% referred a low feeling of professional accomplishment, a low/moderate mean (23.09% were emotionally exhausted and (9.176%felt depersonalized, which intrinsically proves the absence of burnoutsyndrome in the sample. As for burnout dimensions, the findingsshowed that 73.5% are at a low/moderate level of emotional exhaustion;70.53% suffer from a low/moderate level of depersonalization; and 76%reported a high feeling of professional accomplishment. Conclusion:High means were found at the dimensions of reduced professionalaccomplishment, which calls for the need to intervene in the caseof these students so that they may recall their primary initiativeconcerning their professional choice.

  6. National Undergraduate Medical Core Curriculum in Turkey: Evaluation of Residents

    Directory of Open Access Journals (Sweden)

    Işıl İrem Budakoğlu

    2014-03-01

    Full Text Available Background: There is very little information available on self-perceived competence levels of junior medical doctors with regard to definitions by the National Core Curriculum (NCC for Undergraduate Medical Education. Aims: This study aims to determine the perceived level of competence of residents during undergraduate medical education within the context of the NCC. Study Design: Descriptive study. Methods: The survey was conducted between February 2010 and December 2011; the study population comprised 450 residents. Of this group, 318 (71% participated in the study. Self-assessment questionnaires on competencies were distributed and residents were asked to assess their own competence in different domains by scoring them on a scale of 1 to 10. Results: Nearly half of the residents reported insufficient experience of putting clinical skills into practice when they graduated. In the theoretical part of NCC, the lowest competency score was reported for health-care administration, while the determination of level of chlorine in water, delivering babies, and conducting forensic examinations had the lowest perceived levels of competency in the clinical skills domain. Conclusion: Residents reported low levels of perceived competency in skills they rarely performed outside the university hospital. They were much more confident in skills they performed during their medical education.

  7. The impacts and "best practices" of undergraduate - graduate student mentoring relationships in undergraduate research experiences

    Science.gov (United States)

    Campanile, Megan Faurot

    With the growth of undergraduate research in the U.S., over the past two decades, faculty are more often assigning graduate students to mentor undergraduate students than providing the one-on-one mentoring themselves. A critical gap that exists in the literature is how undergraduate -- graduate student mentoring relationships in undergraduate research influences both students' academic and career paths. The research questions that framed this study were: (1) What, if any, changes occur in the academic and career paths of undergraduate and graduate students who participate in undergraduate research experiences? and (2) Are there variables that constitute "best practices" in the mentoring relationships in undergraduate research experiences and, if so, what are they? The study context was the National Science Foundation Research Experiences for Undergraduates program at Illinois Institute of Technology and the 113 undergraduate researchers and 31 graduate student mentors who participated from 2006 -- 2014. Surveys and interviews were administered to collect pre- and post-program data and follow-up data during the 2014 -- 2015 academic year. Descriptive statistics, content analysis method, and constant comparative method were used to analyze the data. Key findings on the undergraduate researchers were their actual earned graduate degree types (Ph.D. 20%, M.D. 20%, M.S. 48%, other 12%) and fields (STEM 57%, medical 35%, other 8%) and the careers they were pursuing or working in. All the graduate student mentors were pursuing or working in the STEM fields (academia 50%, industry 40%, government 10%). More than 75% of both the undergraduate and graduate students reported that their mentoring relationships had a somewhat to extremely influential impact on their academic and career paths. A set of "best practices" of mentoring were developed for both the undergraduate and graduate students and focused on the mentoring experiences related to learning and teaching about

  8. Efeito de diferentes tipos de argilas e modificadores orgânicos na morfologia e propriedades térmicas dos nanocompósitos de PET Effect of different types of clays and organic modifiers on the morphology and thermal properties of PET nanocomposites

    Directory of Open Access Journals (Sweden)

    Itamara Farias Leite

    2011-01-01

    Full Text Available Argilas bentoníticas natural e purificada (AN e AP e montmorilonita (MMT, modificadas organicamente com os sais alquil amônio (A, alquil fosfônio (F e com uma mistura de ambos (A e F, foram incorporadas, em teor de 1% em massa, ao PET pelo processo de fusão. Os híbridos obtidos foram caracterizados por difratometria de raios X (DRX, termogravimetria (TG, calorimetria exploratória diferencial (DSC e microscopia eletrônica de transmissão (MET. Nanocompósitos com morfologia intercalada ordenada e intercalada desordenada/esfoliada foram obtidos quando manufaturados com as argilas organofilizadas com sal amônio e com a mistura dos sais amônio e fosfônio. A incorporação das argilas organofilizadas com o sal fosfônio ao PET não resultou na formação de nanocompósitos. As argilas organofílicas ANOA, APOF e MMTOF, quando misturadas ao PET, provocaram aumento da sua estabilidade térmica, além de atuarem como agentes nucleantes heterogêneos para o referido polímero, aumentando sua temperatura de cristalização. Este resultado é significativo do ponto de vista industrial, pois a baixa velocidade de cristalização do PET dificulta seu uso na preparação de artefatos injetados. Além disso, como as argilas bentoníticas fornecidas por empresa local apresentaram comportamento semelhante ao da montmorilonita importada, o uso dessa matéria-prima de menor custo, modificada com tecnologia nacional, pode ser uma alternativa atraente para aplicações do PET moldado por injeção onde o custo é um fator primordial.Montmorillonite (MMT, natural (AN and purified (AP bentonite clays modified with alkyl ammonium (A, alkyl phosphonium (F and a mixture of both (A and F salts were incorporated (1% w/w into PET by melt blending. The hybrids thus obtained were characterized by XRD, TG, DSC and TEM. Nanocomposites having intercalated ordered structures and intercalated disordered/exfoliated structures were obtained with the clays modified with the

  9. EVALUACIÓN DEL COMPORTAMIENTO DE ARCILLAS SOMETIDAS A DIFERENTES TIEMPOS DE EXPOSICIÓN A ALTAS TEMPERATURAS AVALIAÇÃO DO COMPORTAMENTO DE ARGILAS SUBMETIDAS A DIFERENTES TEMPOS DE EXPOSIÇÃO A ALTAS TEMPERATURAS BEHAVIOR EVALUATION OF CLAYS SUBJECTED TO DIFFERENT EXPOSURES TIMES AT HIGH TEMPERATURES

    Directory of Open Access Journals (Sweden)

    Hugo Alexánder Rondón

    2011-12-01

    Full Text Available El artículo presenta el cambio que experimentan dos arcillas en sus propiedades índice, de expansión y resistencia a la compresión inconfinada cuando se someten a altas temperaturas (150, 225 y 300 °C durante tres tiempos de exposición (1, 7 y 15 días. Además se estudió si las arcillas recuperan las propiedades mencionadas después de ser sometidas a altas temperaturas y de ser nuevamente expuestas a la temperatura ambiente durante una semana en el laboratorio. El objetivo general de la investigación es evaluar si la aplicación de temperatura puede utilizarse como mecanismo de estabilización de arcillas o fabricación de llenante mineral. Los resultados muestran que la plasticidad, el potencial de expansión y la resistencia a la compresión simple de las arcillas ensayadas disminuyen cuando se eleva la temperatura de las muestras entre 150 ºC y 300 ºC y se incrementa el tiempo de exposición. También se encontró que la recuperación de las propiedades de las arcillas es nula cuando se someten a 300 °C durante 15 días.O artigo apresenta a mudança que experimentam duas argilas em suas propriedades índice, de expansão e resistência à compressão não confinada quando se submetem a altas temperaturas (150, 225 e 300 °C durante três tempos de exposição (1,7 e 15 dias. Ademais estudou-se se as argilas recuperam as propriedades mencionadas, após ser submetidas a altas temperaturas e de ser novamente expostas à temperatura ambiente durante uma semana no laboratório. O objetivo geral da pesquisa é avaliar se a aplicação de temperatura pode ser utilizada como mecanismo de estabilização de argilas ou fabricação de filler mineral. Os resultados mostram que a plasticidade, o potencial de expansão e a resistência à compressão simples das argilas ensaiadas diminuem quando se eleva a temperatura das mostras entre 150 ºC e 300 ºC e se incrementa o tempo de exposição. Também se encontrou que a recuperação das

  10. Estudo da potencialidade da aplicação de uma argila contaminada com calcário na produção de placas cerâmicas Study of the potentiality of the application of a contaminated clay with limestone in the production of ceramic plates

    Directory of Open Access Journals (Sweden)

    R. A. L. Soares

    2012-12-01

    Full Text Available Na região da cidade de Teresina, PI, encontra-se uma grande quantidade de jazidas de argilas de queima vermelha usadas na produção de cerâmica estrutural, sendo o principal motivo da instalação de um pólo cerâmico nesta região. Porém muitas destas jazidas não estão sendo exploradas de forma adequada ou simplesmente abandonadas por causa da contaminação com calcário, sendo este o principal contaminante indesejável pelos ceramistas do pólo teresinense. Assim, esta pesquisa tem como objetivo avaliar a potencialidade de aplicação de uma argila com calcário na produção de placas de revestimento cerâmico de queima vermelha. Para isso foram caracterizadas uma massa cerâmica usada na produção de revestimento semiporoso e uma argila contaminada com calcário. As matérias-primas foram queimadas em forno industrial separadamente e em combinação nas proporções de 25%, 50% e 75% em peso da argila adicionada a massa industrial. Foram realizados nos corpos de prova queimados ensaios tecnológicos de retração linear, absorção de água e resistência mecânica. A microestrutura foi avaliada através de análise por difração de raios X. Os resultados mostraram potencialidade da utilização da argila contaminada com calcário em massa de revestimento cerâmico.In the city of Teresina area, capital of Piauí, Brazil, there is a lot of clay deposits red burning used in the production of structural ceramics, being the main reason for installing a ceramic center in the region. But many of these deposits are not being adequately exploited or simply abandoned because of contamination with limestone, which is the main undesirable contaminant for the ceramic producers pole of Teresina. Thus, this research aims to evaluate the capability of applying some clay with limestone in the production of these plates of red ceramic burning. A ceramic body used in the production of coating semiporous and a contaminated clay with limestone were

  11. [Evidence-based practice competence in undergraduate Nursing Degree students].

    Science.gov (United States)

    Ruzafa-Martínez, María; Molina-Salas, Yolanda; Ramos-Morcillo, Antonio Jesús

    2016-01-01

    Evidence-based practice (EBP) learning has become a key issue for nurses. An EPB subject was included in the 4(th) year in the new syllabus of the Nursing Degree at University of Murcia (UM). To know the competence level in EBP of undergraduate nursing students at UM and compare the results between all four years. Observational descriptive study with a cross-sectional approach. undergraduate nursing students from all four years at Nursing Degree at the Faculty of Social and Healthcare Science at UM in the year 2013-14. EBP evaluation of competence of the nursing students consisted of attitude, skills and knowledge on EBP. A validated questionnaire, the EBP-COQ, was used. The scale range is 1 point «lowest level» to 5 points «higher level».The SPSS 21.0 program has been used to carry out descriptive and bivariate analyses. 144 students were included, 76.4% was female, and the median age was 23 years, 84.7% attended more than 75% class hours. The mean differences in the questionnaire between first and fourth years were 0.58 points in attitude, 0.60 in skills, 1.6 in knowledge and 0.83 in global competence in EBP. Significant differences in mean scores between the fourth and the remaining years in the global competence in EBP were observed, as well as in the three dimensions (p <0.05). The undergraduate-nursing students studied here have acquired an appropriate competence level in EBP, with a gradual increase by year. The biggest increase was in the fourth year students. Copyright © 2015 Elsevier España, S.L.U. All rights reserved.

  12. Undergraduate Students as Climate Communicators

    Science.gov (United States)

    Sharif, H. O.; Joseph, J.; Mullendore, G. L.

    2012-12-01

    The University of Texas at San Antonio (UTSA), San Antonio College (SAC), and the University of North Dakota (UND) are partnering with NASA to provide underrepresented undergraduates from UTSA, SAC, and other community colleges climate-related research and education experiences. The program aims to develop a robust response to climate change by providing K-16 climate change education; enhance the effectiveness of K-16 education particularly in engineering and other STEM disciplines by use of new instructional technologies; increase the enrollment in engineering programs and the number of engineering degrees awarded by showing engineering's usefulness in relation to the much-discussed contemporary issue of climate change; increase persistence in STEM degrees by providing student research opportunities; and increase the ethnic diversity of those receiving engineering degrees and help ensure an ethnically diverse response to climate change. Students will have the opportunity to participate in guided research experiences aligned with NASA Science Plan objectives for climate and Earth system science and the educational objectives of the three institutions. An integral part of the learning process will include training in modern media technology (webcasts), and in using this technology to communicate the information on climate change to others, especially high school students, culminating in production of a webcast about investigating aspects of climate change using NASA data. Content developed is leveraged by NASA Earth observation data and NASA Earth system models and tools. Several departments are involved in the educational program.

  13. Undergraduate medical education in Germany

    Directory of Open Access Journals (Sweden)

    Chenot, Jean-François

    2009-04-01

    Full Text Available The purpose of this article is to give international readers an overview of the organisation, structure and curriculum, together with important advances and problems, of undergraduate medical education in Germany. Interest in medical education in Germany has been relatively low but has gained momentum with the new "Regulation of the Licensing of Doctors" which came into effect in 2003. Medical education had required substantial reform, particularly with respect to improving the links between theoretical and clinical teaching and the extension of interdisciplinary and topic-related instruction. It takes six years and three months to complete the curriculum and training is divided into three sections: basic science (2 years, clinical science (3 years and final clinical year. While the reorganisation of graduate medical education required by the new "Regulation of the Licensing of Doctors" has stimulated multiple excellent teaching projects, there is evidence that some of the stipulated changes have not been implemented. Indeed, whether the medical schools have complied with this regulation and its overall success remains to be assessed systematically. Mandatory external accreditation and periodic reaccreditation of medical faculties need to be established in Germany.

  14. Nanocompósitos de PEAD/PEBDL: avaliação da esfoliação da argila organofílica pela aplicação do modelo de Nielsen e das propriedades mecânicas, ópticas e permeabilidade PEAD/PEBDL composites: evaluation of the exfoliation of organophilic clay using the Nielsen model and of the mechanical, optical and permeability properties

    Directory of Open Access Journals (Sweden)

    Ana R. Morales

    2010-01-01

    Full Text Available Uma blenda de polietileno de alta densidade e polietileno de baixa densidade (PEAD/PEBDL comumente utilizada em filmes de embalagem foi modificada com argila montmorilonita organofílica comercial para obter nanocompósitos com melhores propriedades de barreira. Amostras com 5 e 7,5% de argila (em massa foram estudadas em diferentes condições de processamento. Filmes produzidos com os nanocompósitos foram avaliados quanto à dispersão da argila por difração de raio X e Microscopia Eletrônica de Transmissão. As propriedades de barreira dos filmes foram determinadas pelas medições de permeabilidade ao oxigênio e ao vapor d'água. As propriedades mecânicas e ópticas também foram determinadas. Observou-se uma estrutura com a argila parcialmente esfoliada e intercalada. A permeabilidade ao oxigênio diminuiu significativamente enquanto a permeabilidade à água foi pouco influenciada. As propriedades mecânicas e a transparência dos filmes foram pouco alteradas. O modelo de Nielsen foi aplicado para os dados de permeabilidade relativa e demonstrou ser um ótimo recurso para a avaliação do grau de esfoliação da argila para as diferentes amostras, que foram confirmadas pelas análises realizadas em microscopia eletrônica de transmissão.A typical high density polyethylene and linear low density polyethylene (HDPE/LLDPE blend used in flexible packaging was modified with commercial organophylic montmorilonite clay to obtain nanocomposites with superior barrier properties. Samples with 5 and 7.5% of clay were prepared under different processing conditions. Films produced from the nanocomposites were evaluated in terms of oxygen and water vapor permeation and also by X-ray diffraction and Transmission Electron Microscopy. Tensile and optical properties were also evaluated. The clay showed to be intercalated and partially exfoliated. The oxygen permeation was mainly reduced and the vapor permeation was weakly modified. The mechanical

  15. Radiation protection knowledge in the undergraduate level for physics students

    International Nuclear Information System (INIS)

    Frutos-Baraja, J. M.; Sanchez-Carmona, G.; Hernando-Gonzalez, I.; Cid-Galache, A.; Castillo-Belmonte, A. del; Barrio-Lazo, F. J.; Pereda-Barroeta, N.; Iniguez de la Torre, M. P.; Barquero-Sanz, R.; Lopez-Lara-Martin, F.

    2004-01-01

    Medical physics knowledge and the ionising radiations use with medical purposes are a matter of growing interest among students will be titled in physics University degree. To familiarize to students of Physics University degree with this field is considered important so much so that they relate part of that learned in the curriculum ruled as to show them a possible unknown professional field for many. To detect necessities in this field it is carried out an evaluation of knowledge that it help to program activities with those that to satisfy formative necessities in this field. (Author) 17 refs

  16. Cooperative Learning in a Soil Mechanics Course at Undergraduate Level

    Science.gov (United States)

    Pinho-Lopes, M.; Macedo, J.; Bonito, F.

    2011-01-01

    The implementation of the Bologna Process enforced a significant change on traditional learning models, which were focused mainly on the transmission of knowledge. The results obtained in a first attempt at implementation of a cooperative learning model in the Soil Mechanics I course of the Department of Civil Engineering of the University of…

  17. Framing the Undergraduate Research Experience: Discovery Involvement in Retailing Undergraduate Education

    Science.gov (United States)

    Sternquist, Brenda; Huddleston, Patricia; Fairhurst, Ann

    2018-01-01

    We provide an overview of ways to involve undergraduate business and retailing students in faculty research projects and discuss advantages of these student-faculty collaborations. We use Kolb's experiential learning cycle to provide a framework for creating an effective and engaging undergraduate research experience and use it to classify types…

  18. The Role of Academic Developers in Embedding High-Impact Undergraduate Research and Inquiry in Mainstream Higher Education: Twenty Years' Reflection

    Science.gov (United States)

    Healey, Mick; Jenkins, Alan

    2018-01-01

    The focus of this article is on the role of academic developers in supporting and influencing undergraduate research and inquiry, a high-impact activity. We examine the levels at which academic developers can influence undergraduate research and inquiry practices by distinguishing between staff and student practices; disciplinary and departmental…

  19. Detection of the "cp4 epsps" Gene in Maize Line NK603 and Comparison of Related Protein Structures: An Advanced Undergraduate Experiment

    Science.gov (United States)

    Swope, Nicole K.; Fryfogle, Patrick J.; Sivy, Tami L.

    2015-01-01

    A flexible, rigorous laboratory experiment for upper-level biochemistry undergraduates is described that focuses on the Roundup Ready maize line. The work is appropriate for undergraduate laboratory courses that integrate biochemistry, molecular biology, or bioinformatics. In this experiment, DNA is extracted and purified from maize kernel and…

  20. Self-Esteem, Social Support, Collectivism, and the Thin-Ideal in Latina College Undergraduates

    Science.gov (United States)

    Cordero, Elizabeth D.

    2010-01-01

    Thin-ideal internalization (TII) reflects agreement that thinness equates with beauty. TII is a risk factor for body dissatisfaction and eating pathology; this phenomenon and its correlates, however, are just beginning to be studied in Latina undergraduates. This study examined the ability of self-esteem, social support, and collectivism to predict TII in Latina undergraduates. It was hypothesized that higher levels of self-esteem, social support, and collectivism would predict lower levels of TII. Cross-sectional data were analyzed using multiple regression; the model was significant, p < .01. Although both self-esteem and social support negatively correlated with thin-ideal internalization, only self-esteem accounted for a significant amount of variance. Results indicate that investigations of self-esteem as a protective factor against TII in Latina undergraduates would be fruitful, as would how self-esteem and social support affect the relationship between TII and other variables. Implications and limitations are discussed. PMID:21147052

  1. Proceedings of the ninth national conference on undergraduate research, 1995. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Yearout, R.D. [ed.

    1995-07-01

    The Ninth National Conference on Undergraduate Research (NCUR 95) was held at Union College in Schenectady, New York. This annual celebration of undergraduate scholarly activity continues to elicit strong nation-wide support and enthusiasm among both students and faculty. Attendance was nearly 1,650, which included 1,213 student oral and poster presenters. For the second year in a row, many student papers had to be rejected for presentation at NCUR due to conference size limitations. Thus, submitted papers for presentation at NCUR 95 were put through a careful review process before acceptance. Those students who have been selected to have their paper appear in these Proceedings have been through yet a second review process. As a consequence, their work has been judged to represent an impressive level of achievement at the undergraduate level. Volume 1 contains papers related to Arts and Humanities (52 papers), and Social and Behavioral Sciences (64 papers).

  2. Proceedings of the ninth national conference on undergraduate research, 1995. Volume 2

    Energy Technology Data Exchange (ETDEWEB)

    Yearout, R.D.

    1995-07-01

    The Ninth National Conference on Undergraduate Research (NCUR 95) was held at Union College in Schenectady, New York. This annual celebration of undergraduate scholarly activity continues to elicit strong nation-wide support and enthusiasm among both students and faculty. Attendance was nearly 1,650, which included 1,213 student oral and poster presenters. For the second year in a row, many student papers had to be rejected for presentation at NCUR due to conference size limitations. Thus, submitted papers for presentation at NCUR 95 were put through a careful review process before acceptance. Those students who have been selected to have their paper appear in these Proceedings have been through yet a second review process. As a consequence, their work has been judged to represent an impressive level of achievement at the undergraduate level. Volume 2 contains papers related to Engineering and Mathematics (41 papers) and Physical Science (18 papers).

  3. Proceedings of the ninth national conference on undergraduate research, 1995. Volume 3

    Energy Technology Data Exchange (ETDEWEB)

    Yearout, R.D. [ed.

    1995-07-01

    The Ninth National Conference on Undergraduate Research (NCUR 95) was held at Union College in Schenectady, New York. This annual celebration of undergraduate scholarly activity continues to elicit strong nation-wide support and enthusiasm among both students and faculty. Attendance was nearly 1,650, which included 1,213 student oral and poster presenters. For the second year in a row, many student papers had to be rejected for presentation at NCUR due to conference size limitations. Thus, submitted papers for presentation at NCUR 95 were put through a careful review process before acceptance. Those students who have been selected to have their paper appear in these Proceedings have been through yet a second review process. As a consequence, their work has been judged to represent an impressive level of achievement at the undergraduate level. Volume 3 contains papers related to Biological Sciences (46 papers); Chemical Sciences (21 papers); and Environmental Sciences (7 papers).

  4. Assessment of a new undergraduate module in musculoskeletal medicine.

    Science.gov (United States)

    Queally, Joseph M; Cummins, Fionnan; Brennan, Stephen A; Shelly, Martin J; O'Byrne, John M

    2011-02-02

    Despite the high prevalence of musculoskeletal disorders seen by primary care physicians, numerous studies have demonstrated deficiencies in the adequacy of musculoskeletal education at multiple stages of medical education. The aim of this study was to assess a newly developed module in musculoskeletal medicine for use at European undergraduate level (i.e., the medical-school level). A two-week module in musculoskeletal medicine was designed to cover common musculoskeletal disorders that are typically seen in primary care. The module incorporated an integrated approach, including core lectures, bedside clinical examination, and demonstration of basic practical procedures. A previously validated examination in musculoskeletal medicine was used to assess the cognitive knowledge of ninety-two students on completion of the module. A historical control group (seventy-two students) from a prior course was used for comparison. The new module group (2009) performed significantly better than the historical (2006) control group in terms of score (62.3% versus 54.3%, respectively; p pass rate (38.4% versus 12.5%, respectively; p = 0.0002). In a subgroup analysis of the new module group, students who enrolled in the graduate entry program (an accelerated four-year curriculum consisting of students who have already completed an undergraduate university degree) were more likely to perform better in terms of average score (72.2% versus 57%, respectively; p pass rates (70.9% versus 21.4%, respectively; p paper represents an educational advance at undergraduate (i.e., medical-school) level as demonstrated by the improvement in scores in a validated examination. As pressure on medical curricula grows to accommodate advancing medical knowledge, it is important to continue to improve, assess, and consolidate the position of musculoskeletal medicine in contemporary medical education.

  5. The Physiology undergraduate major in the University of Arizona College of Medicine: past, present, and future.

    Science.gov (United States)

    Henriksen, Erik J; Atwater, Anne E; Delamere, Nicholas A; Dantzler, William H

    2011-06-01

    The American Physiological Society (APS) and APS Council encourage the teaching of physiology at the undergraduate, graduate, and medical school levels to support the continued prominence of this area of science. One area identified by the APS Council that is of particular importance for the development of future physiologists (the "physiology pipeline") is the teaching of physiology and physiology-related topics at the undergraduate level. In this article, we describe the historical development and implementation of an undergraduate program offered through the Department of Physiology, a basic science department in the College of Medicine at the University of Arizona, culminating in a Bachelor of Science in Health Sciences degree with a major in Physiology. Moreover, we discuss the current Physiology curriculum offered at our institution and explain how this program prepares our students for successful entry into a variety of postbaccalaureate professional programs, including medical school and numerous other programs in health professions, and in graduate study in the Masters and Doctoral programs in biomedical sciences. Finally, we cover the considerable challenges that we have faced, and continue to face, in developing and sustaining a successful physiology undergraduate major in a college of medicine. We hope that the information provided on the Physiology major offered by the Department of Physiology in the College of Medicine at the University of Arizona will be helpful for individuals at other institutions who may be contemplating the development and implementation of an undergraduate program in Physiology.

  6. Introducing Science to undergraduate students

    Directory of Open Access Journals (Sweden)

    P. Avila Jr

    2006-07-01

    Full Text Available The knowledge of scientific method provides stimulus and development of critical thinking and logical analysis of information besides the training of continuous formulation of hypothesis to be applied in formal scientific issues as well as in everyday facts. The scientific education, useful for all people, is indispensable for the experimental science students. Aiming at the possibility to offer a systematic learning of the scientific principles, we developed a undergraduate course designed to approximate the students to the procedures of scientific production and publication. The course was developed in a 40 hours, containing two modules: I. Introducing Scientific Articles (papers and II. Writing Research Project. The first module deals with: (1 the difference between scientific knowledge and common sense; (2 scientific methodology; (3 scientific publishing categories; (4 logical principles; (5 deduction and induction approach and (6 paper analysis. The second module includes (1 selection of problem to be solved by experimental procedures; (2 bibliography revision; (3 support agencies; (4 project writing and presentation and (5 critical analysis of experimental results. The course used a Collaborative Learning strategy with each topic being developed through activities performed by the students. Qualitative and quantitative (through Likert questionnaires evaluation were carried out in each step of the course, the results showing great appreciation by the students. This is also the opinion of the staff responsible for the planning and development of the course, which is now in its second and improved version.

  7. Successful Undergraduate Research: Creating Win-Win-Win

    Science.gov (United States)

    Guswa, A. J.; Rhodes, A. L.

    2003-12-01

    Undergraduate involvement in research has the potential to advance science, enhance education, strengthen the research community, and raise general awareness of the importance and impact of scientific understanding. Rather than being competing objectives, these goals are synergistic. Effective research experiences are those that create win-win-win situations: benefits to the student, benefits to the project, and benefits to the scientific community. When structured appropriately, undergraduate research fits into a learner-centered paradigm that puts emphasis on student learning, rather than instructor teaching. Under such a paradigm the student and professor learn together, constructing knowledge by integrating information with critical-thinking and problem-solving skills, and use this knowledge to address issues in real-life contexts. Creating such a learning environment requires that the professor be vested in the outcome of the research, that the student take a meta-cognitive approach to the project and work at a level appropriate to her abilities, and that the student understand how her contribution fits into the project and the larger field. All of these factors lead to greater independence, confidence, and productivity on the part of the student. By providing undergraduates with these experiences, we introduce not only future scientists but also non-scientists to the excitement of discovery and the value of scientific research. Currently, we involve undergraduates in our research on the hydrology and geochemistry of a tropical montane cloud forest in Monteverde, Costa Rica. At the start of each student's involvement, we provide her with the big picture: our project goals, the relevant social issues, and the importance of watershed research. Each student then articulates her own educational and project objectives. Together, we choose tasks that match her skills and interests with our scholarly work. Specific activities range from literature review to

  8. Feasibility and outcomes of paid undergraduate student nurse positions.

    Science.gov (United States)

    Gamroth, Lucia; Budgen, Claire; Lougheed, Mary

    2006-09-01

    An Undergraduate Nurse Employment Demonstration Project (UNDP) was implemented in four Health Service Areas in British Columbia with a concurrent evaluation study. This demonstration project comprised the development and implementation of a new position in the BC healthcare system. The position enabled third- and fourth-year nursing students to be employed at their level of education. The purposes of the evaluation were to explore the feasibility and outcomes of this type of paid undergraduate student nurse employment. The three-year project and evaluation included both implementation and outcome analysis. The implementation evaluation design was descriptive and prospective, involving multiple data sources. The outcome evaluation design was quasi-experimental, with intervention and comparison groups. Learning outcomes for undergraduate nurses were increased confidence, organizational ability, competency and ability to work with a team. Workplace outcomes were increased unit morale, help with workload and improved patient care. New graduates with undergraduate nurse experience reported less time required for orientation and transition than other graduates who did not have this experience, and workplace nurses viewed these new graduates as more job-ready than other new graduates. After 21 months, new graduates with undergraduate nurse experience were less likely to move to other employment than other new graduates. Results from the four Health Service Areas indicated that the paid undergraduate nurse position was feasible and that outcomes benefited students, new graduates and workplaces. The undergraduate nurse position is now being implemented throughout all Health Service Areas in British Columbia.By 2000, concerns in British Columbia about the nursing workforce, workplace and patient safety had escalated to the point where diverse stakeholder groups were prepared to work together in new ways to prepare nursing graduates to be more job-ready, to recruit and retain

  9. Basic abstract algebra for graduate students and advanced undergraduates

    CERN Document Server

    Ash, Robert B

    2006-01-01

    Geared toward upper-level undergraduates and graduate students, this text surveys fundamental algebraic structures and maps between these structures. Its techniques are used in many areas of mathematics, with applications to physics, engineering, and computer science as well. Author Robert B. Ash, a Professor of Mathematics at the University of Illinois, focuses on intuitive thinking. He also conveys the intrinsic beauty of abstract algebra while keeping the proofs as brief and clear as possible.The early chapters provide students with background by investigating the basic properties of groups

  10. Radiochemistry in chemistry and chemistry related undergraduate programmes in Argentina

    International Nuclear Information System (INIS)

    Fornaciari Iljadica, M.C.; Furnari, J.C.; Cohen, I.M.

    2006-01-01

    The evolution of education in Argentina at the university level is described. The detailed search of the educational offer shows that less than half of the universities (35 out of 92) include chemistry and chemistry related undergraduate programmes in their curriculum. The revision of the position of radiochemistry in these programmes reveals that only seven courses on radiochemistry are currently offered. Radiochemistry is included only in few programmes in chemistry and biochemistry. With respect to the programmes in chemical engineering the situation is worse. This offer is strongly concentrated in Buenos Aires and its surroundings. (author)

  11. Predicting intentions to seek help for depression among undergraduates in Sri Lanka.

    Science.gov (United States)

    Amarasuriya, Santushi D; Jorm, Anthony F; Reavley, Nicola J

    2018-05-04

    Studies have found that although there are high rates of depression among university students, their help-seeking practices are poor. It is important to identify students who are less likely to seek the necessary help, to encourage better help-seeking among them. This study, which was conducted among undergraduates in Sri Lanka, examined the associations between personal characteristics of the undergraduates and their intentions to seek help for depression. This was a cross-sectional study in which 4461 undergraduates (Male: n = 1358, 30.4%, Female: n = 3099, 69.5%; Mean age = 22.18; SD = 1.47) indicated their intentions to seek help if personally affected by depression, which was described in a hypothetical vignette about a peer experiencing depression symptomatology. The predictors of the undergraduates' help-seeking intentions, including their sociodemographic characteristics, prior exposure to and recognition of the problem, and their stigma towards those with depression were examined using binary logistic regression analyses models. The undergraduates' ability to recognise the problem was one of the strongest predictors of their intentions to seek professional help. Those with higher levels of stigma were less likely to seek both professional and informal help. While females were less likely to consider professional help, they were more likely to consider the help of informal help-providers and to consider religious strategies. Medical undergraduates and those who had sought help for personal experiences of the problem were also more likely to consider informal help. However, all these associations resulted in small effect sizes, except for those between recognition of the problem and the undergraduates' intentions to seek professional help, where medium to very large effect sizes were observed in the case of some the associations examined. Improvement of problem-recognition may be a key strategy for improving help-seeking among these

  12. The value of reflective journaling in undergraduate nursing education: a literature review.

    Science.gov (United States)

    Epp, Sheila

    2008-09-01

    The purpose of this literature review was to ascertain the evidence for the use of reflective journaling as a tool to promote the pedagogical strategy of reflection for the purpose of learning from practice for practice in undergraduate nursing education. Concept-centric. The literature review involved structured searches of all OVID gateway databases, EBSCO host databases, and Blackwell Synergy. Qualitative and Quantitative Studies from 1992 to 2006 were included if they focused on reflective journaling in undergraduate clinical education. Due to the vast plethora of literature on reflection, keywords were utilized to focus the search. Approximately 150 abstracts were reviewed for primary sources of research. A total of nine studies met the inclusion criteria. The review subsequently divided the literature into four content themes allowing for appraisal and analysis of the findings, followed by summary and key recommendations for nursing education and research. There was evidence that educators struggle to incorporate reflective processes into education; however, the research provided rationale and support for engaging undergraduate students in the reflective process. Researchers found reasonable levels of reflection in undergraduate students' journaling and educators reported students' learning as a result of reflective journaling. Further to this, there was evidence that writing reflectively improved over time; a learned skill also dependent on a good facilitator and trust. Unfortunately, there was a paucity of research that explored the undergraduate nurses' experiences with the process of having to create written communication, with a critical reflective focus on practice. Nursing educators are correct in pursuing the teaching and learning of the reflective process in undergraduate nursing education. Nurse educators need to utilize various tools and strategies for facilitating the growth of undergraduate students into reflective practitioners. Indeed there was

  13. Graduate Students May Need Information Literacy Instruction as Much as Undergraduates

    Directory of Open Access Journals (Sweden)

    Robin Elizabeth Miller

    2014-09-01

    in a library achieved average scores of 79%, in contrast to 69% among those who had not worked in a library. Average scores for undergraduates in the 20-30 age group were 81%, while those in the 30-40 age group averaged 65%. Among both undergraduate and postgraduate students, scores may indicate deficiencies in information literacy skills in several areas, including parsing citations, strategies for locating specific content, and defining an information need. Conclusion – The study concludes that postgraduate students’ information literacy skills may be marginally better than the skills of undergraduates. Age was found to be associated with higher performance among undergraduate students, and a variety of “basic” information literacy skills may elude many respondents. These findings might prompt librarians and instructors to look closely at gaps in information literacy knowledge among students at both the undergraduate and postgraduate level.

  14. The ASM Curriculum Guidelines for Undergraduate Microbiology: A Case Study of the Advocacy Role of Societies in Reform Efforts.

    Science.gov (United States)

    Horak, Rachel E A; Merkel, Susan; Chang, Amy

    2015-05-01

    A number of national reports, including Vision and Change in Undergraduate Biology Education: A Call to Action, have called for drastic changes in how undergraduate biology is taught. To that end, the American Society for Microbiology (ASM) has developed new Curriculum Guidelines for undergraduate microbiology that outline a comprehensive curriculum for any undergraduate introductory microbiology course or program of study. Designed to foster enduring understanding of core microbiology concepts, the Guidelines work synergistically with backwards course design to focus teaching on student-centered goals and priorities. In order to qualitatively assess how the ASM Curriculum Guidelines are used by educators and learn more about the needs of microbiology educators, the ASM Education Board distributed two surveys to the ASM education community. In this report, we discuss the results of these surveys (353 responses). We found that the ASM Curriculum Guidelines are being implemented in many different types of courses at all undergraduate levels. Educators indicated that the ASM Curriculum Guidelines were very helpful when planning courses and assessments. We discuss some specific ways in which the ASM Curriculum Guidelines have been used in undergraduate classrooms. The survey identified some barriers that microbiology educators faced when trying to adopt the ASM Curriculum Guidelines, including lack of time, lack of financial resources, and lack of supporting resources. Given the self-reported challenges to implementing the ASM Curriculum Guidelines in undergraduate classrooms, we identify here some activities related to the ASM Curriculum Guidelines that the ASM Education Board has initiated to assist educators in the implementation process.

  15. Changing Sea Levels

    Science.gov (United States)

    Pugh, David

    2004-04-01

    Flooding of coastal communities is one of the major causes of environmental disasters world-wide. This textbook explains how sea levels are affected by astronomical tides, weather effects, ocean circulation and climate trends. Based on courses taught by the author in the U.K. and the U.S., it is aimed at undergraduate students at all levels, with non-basic mathematics being confined to Appendices and a website http://publishing.cambridge.org/resources/0521532183/.

  16. Membrana cerâmica assimétrica à base de argila para aplicação em processos de microfiltração: influência do tempo de deposição

    Directory of Open Access Journals (Sweden)

    M. C. da Silva

    2014-09-01

    Full Text Available A tecnologia de membranas vem sendo disseminada pelo mundo, em diversos setores onde existe a necessidade de separação de substancias, em diferentes escalas de dimensões e condições de temperatura e pressão. Neste sentido, as membranas cerâmicas vêm sendo exploradas para atuarem em ambientes onde as membranas poliméricas teriam restrições, como por exemplo, na presença de solventes orgânicos, altas pressões e temperaturas, etc. Diante disso, esse trabalho tem como objetivo a obtenção de membrana cerâmica assimétrica formada por uma camada filtrante à base de argila depositada sobre suporte poroso obtido com alumina comercial e bentonita. A camada ativa foi depositada por colagem em tempos de 10, 20 e 30 s para obtenção da membrana assimétrica. As massas cerâmicas para confecção do suporte e para obtenção da membrana foram caracerizadas por distrubuição granulométrica e microscopia eletrônica de varredura. O suporte poroso e a membrana assimétrica foram caracterizados por microscopia eletrônica de varredura, porosimetria por intrusão de mercúrio e foram realizadas análises de fluxo com água. Os resultados mostraram um suporte com diâmetro médio de 0,99 µm e porosidade de 39,25%. A membrana assimétrica foi obtida com sucesso, isenta de defeitos para tempo de colagem de 10 s, atingindo uma espessura de camada depositada de 104 µm, diâmetro médio de poro de 0,25 µm e porosidade de 35%, sendo classificada, portanto, para aplicações em processos de microfiltração, com fluxo permeado estabilizado com água destilada em torno de 100 L/h.m².

  17. BOOK REVIEW: Inverse Problems. Activities for Undergraduates

    Science.gov (United States)

    Yamamoto, Masahiro

    2003-06-01

    This book is a valuable introduction to inverse problems. In particular, from the educational point of view, the author addresses the questions of what constitutes an inverse problem and how and why we should study them. Such an approach has been eagerly awaited for a long time. Professor Groetsch, of the University of Cincinnati, is a world-renowned specialist in inverse problems, in particular the theory of regularization. Moreover, he has made a remarkable contribution to educational activities in the field of inverse problems, which was the subject of his previous book (Groetsch C W 1993 Inverse Problems in the Mathematical Sciences (Braunschweig: Vieweg)). For this reason, he is one of the most qualified to write an introductory book on inverse problems. Without question, inverse problems are important, necessary and appear in various aspects. So it is crucial to introduce students to exercises in inverse problems. However, there are not many introductory books which are directly accessible by students in the first two undergraduate years. As a consequence, students often encounter diverse concrete inverse problems before becoming aware of their general principles. The main purpose of this book is to present activities to allow first-year undergraduates to learn inverse theory. To my knowledge, this book is a rare attempt to do this and, in my opinion, a great success. The author emphasizes that it is very important to teach inverse theory in the early years. He writes; `If students consider only the direct problem, they are not looking at the problem from all sides .... The habit of always looking at problems from the direct point of view is intellectually limiting ...' (page 21). The book is very carefully organized so that teachers will be able to use it as a textbook. After an introduction in chapter 1, sucessive chapters deal with inverse problems in precalculus, calculus, differential equations and linear algebra. In order to let one gain some insight

  18. Journal of Undergraduate Research, Volume IX, 2009

    Energy Technology Data Exchange (ETDEWEB)

    Stiner, K. S.; Graham, S.; Khan, M.; Dilks, J.; Mayer, D.

    2009-01-01

    Each year more than 600 undergraduate students are awarded paid internships at the Department of Energy’s (DOE) National Laboratories. Th ese interns are paired with research scientists who serve as mentors in authentic research projects. All participants write a research abstract and present at a poster session and/or complete a fulllength research paper. Abstracts and selected papers from our 2007–2008 interns that represent the breadth and depth of undergraduate research performed each year at our National Laboratories are published here in the Journal of Undergraduate Research. The fields in which these students worked included: Biology; Chemistry; Computer Science; Engineering; Environmental Science; General Science; Materials Science; Medical and Health Sciences; Nuclear Science; Physics; Science Policy; and Waste Management.

  19. Undergraduate psychiatry in India: A SWOT analysis.

    Science.gov (United States)

    Kumar, Pawan; Jangid, Purushottam; Sethi, Sujata

    2018-03-01

    Psychiatric disorders are highly prevalent and remains a huge burden on the society. In spite of that persons with mental illness are marginalized and mental health is largely being neglected. There is an acute shortage of mental health professionals in India, and also there is inadequate exposure to psychiatry during the medical undergraduate training in India. Moreover, the perception towards psychiatry and psychiatrists is not favorable among medical fraternity and policy makers. This is reflected in the fact that in spite of clearly deficient undergraduate psychiatry curriculum, no steps have been taken towards improving it and recommendations are not being implemented in true spirit. This review tries to identify the gaps in undergraduate curriculum, present a SWOT analysis of current situation and recommend the possible ways to address the deficiencies particularly in India. Copyright © 2018 Elsevier B.V. All rights reserved.

  20. Pathology in Undergraduate Training Program

    Directory of Open Access Journals (Sweden)

    Shiva Raj K.C.

    2018-04-01

    consequence of this is that in many medical schools ‘pathology’ is no longer a recognised subject. In Nepal, pathology is taught in first two years of undergraduate teaching.Despite all these, Pathology is vital and will remain so, to the proper understanding the disease process. If various clinical subjects are the branches of medicine, pathology is the main stem of it. As Sir William Osler says “As is your Pathology, so is your Medicine.” His words are as true today as they were in his time. Pathology teaching may also include multidisciplinary team meeting as one of the key method of teaching. It not only actively involves Pathologists in teaching learning process, but also an important way of exposing interested students to pathology and, in the author’s experience, provides a strong stimulus for eventual choice of pathology as a career.1

  1. Evaluation of use of e-Learning in undergraduate radiology education: a review.

    Science.gov (United States)

    Zafar, Saad; Safdar, Saima; Zafar, Aasma N

    2014-12-01

    The aim of this review is to investigate the evaluative outcomes present in the literature according to Kirkpatrick's learning model and to examine the nature and characteristics of the e-Learning interventions in radiology education at undergraduate level. Four databases (PubMed, MEDLINE, Embase, Eric) are searched for publications related to the application of e-Learning in undergraduate radiology education. The search strategy is a combination of e-Learning and Mesh and non Mesh radiology and undergraduate related terms. These search strategies are established in relation to experts of respective domains. The full text of thirty pertinent articles is reviewed. Author's country and study location data is extracted to identify the most active regions and year's are extracted to know the existing trend. Data regarding radiology subfields and undergraduate year of radiology education is extracted along with e-Learning technologies to identify the most prevalent or suitable technologies or tools with respect to radiology contents. Kirkpatricks learning evaluation model is used to categorize the evaluative outcomes reported in the identified studies. The results of this analysis reveal emergence of highly interactive games, audience response systems and designing of wide range of customized tools according to learner needs assessment in radiology education at undergraduate level. All these initiatives are leading toward highly interactive self directed learning environments to support the idea of life-long independent learners. Moreover, majority of the studies in literature regarding e-Learning in radiology at undergraduate level are based on participant satisfaction followed by participant results or outcomes either before or after an intervention or both. There was no research particularly demonstrating performance change in clinical practice or patient outcome as they may be difficult to measure in medical education. Thus clinical competences and performances are

  2. Investigating Undergraduate Students’ Conceptions of Radiation

    Science.gov (United States)

    Romine, James M.; Buxner, Sanlyn; Impey, Chris; Nieberding, Megan; Antonellis, Jessie C.

    2014-11-01

    Radiation is an essential topic to the physical sciences yet is often misunderstood by the general public. The last time most people have formal instruction about radiation is as students in high school and this knowledge will be carried into adulthood. Peoples’ conceptions of radiation influence their attitude towards research regarding radiation, radioactivity, and other work where radiation is prevalent. In order to understand students’ ideas about radiation after having left high school, we collected science surveys from nearly 12,000 undergraduates enrolled in introductory science courses over a span of 25 years. This research investigates the relationship between students’ conceptions of radiation and students’ personal beliefs and academic field of study.Our results show that many students in the sample were unable to adequately describe radiation. Responses were typically vague, brief, and emotionally driven. Students’ field of study was found to significantly correlate with their conceptions. Students pursuing STEM majors were 60% more likely to describe radiation as an emission and/or form of energy and cited atomic or radioactive sources of radiation twice as often as non-STEM students. Additionally, students’ personal beliefs also appear to relate to their conceptions of radiation. The most prominent misconception shown was that radiation is a generically harmful substance, which was found to be consistent throughout the duration of the study. In particular, non-science majors in our sample had higher rates of misconceptions, often generalized the idea of radiation into a broad singular topic, and had difficulty properly identifying sources.Generalized ideas of radiation and the inability to properly recognize sources of radiation may contribute to the prevalent misconception that radiation is an inexplicably dangerous substance. A basic understanding of both electromagnetic and particulate radiation and the existence of radiation at various

  3. Investigação da influência do processamento na dinâmica molecular de nanocompósitos de policarbonato e argila organofílica obtidos via intercalação por fusão On the influence of processing parameters on the molecular dynamics of melt intercalated polycarbonate-clay nanocomposites

    Directory of Open Access Journals (Sweden)

    Elton J. da R. Rodrigues

    2012-01-01

    Full Text Available Nanocompósitos baseados em policarbonato e argila organofílica foram obtidos pelo método de intercalação por fusão em câmara de mistura sob diferentes valores de torque e temperatura. A influência desses parâmetros na qualidade da dispersão da argila na matriz polimérica foi investigada por ressonância magnética nuclear (RMN de baixo campo, empregando o tempo de relaxação longitudinal, T1H, e por difração de raios X. As diferenças nos tempos de relaxação longitudinal e nos padrões de difração de raios X foram correlacionadas com a formação de domínios com mobilidades distintas. O nanomaterial formado apresentou morfologia intercalada com afastamento crescente das camadas de argila, conforme as condições de processamento se tornavam mais severas. A RMN ¹H mostrou que tanto o cisalhamento quanto a temperatura afetaram a mobilidade das cadeias poliméricas, explicitando a homogeneidade crescente da distribuição dos domínios de relaxação, de acordo com o aumento do torque e da temperatura.Polycarbonate-organofilic clay nanocomposites were obtained via the melt intercalation method in the blending chamber of a torque rheometer, under distinct values of shear and temperature. The influence of those processing parameters on the clay dispersion in the polymer matrix was probed by low-field nuclear magnetic resonance (NMR, using the T1H measurement technique and by wide angle X-ray scattering (WAXS. The differences in longitudinal relaxation times and in the X-ray reflection patterns were correlated with the formation of relaxation domains with particular molecular mobility, as progressively larger intercalated morphologies were found in the nanocomposites due to the increase of shear stress and temperature. ¹H NMR has shown that both shearing and temperature have played a fundamental part on the polymer chains mobility, which explains the increase in the domain´s homogeneity following the increment of those processing

  4. Near-peer mentorship for undergraduate training in Ugandan ...

    African Journals Online (AJOL)

    Near-peer mentorship for undergraduate training in Ugandan medical schools: views of undergraduate students. Godfrey Zari Rukundo, Aluonzi Burani, Jannat Kasozi, Claude Kirimuhuzya, Charles Odongo, Catherine Mwesigwa, Wycliff Byona, Sarah Kiguli ...

  5. South African undergraduate nursing students experience of intra ...

    African Journals Online (AJOL)

    Intra-professional violence is taking its toll on undergraduate nursing students and is ... to leave the profession even before embarking on their new careers. ... The population consisted of undergraduate nursing students registered at nursing ...

  6. Compendium of student papers : 2013 undergraduate transportation scholars program.

    Science.gov (United States)

    2013-11-01

    This report is a compilation of research papers written by students participating in the 2013 Undergraduate Transportation Scholars Program. The 10-week summer program, now in its 23nd year, provides undergraduate students in Civil Engineering the op...

  7. Compendium of student papers : 2011 undergraduate transportation scholars program.

    Science.gov (United States)

    2012-05-01

    This report is a compilation of research papers written by students participating in the 2011 Undergraduate : Transportation Scholars Program. The 10-week summer program, now in its 21st year, provides : undergraduate students in Civil Engineering th...

  8. Compendium of student papers : 2012 undergraduate transportation scholars program.

    Science.gov (United States)

    2013-05-01

    This report is a compilation of research papers written by students participating in the 2012 Undergraduate : Transportation Scholars Program. The 10-week summer program, now in its 22nd year, provides : undergraduate students in Civil Engineering th...

  9. Compendium of student papers : 2008 Undergraduate Transportation Scholars Program.

    Science.gov (United States)

    2008-08-01

    This report is a compilation of research papers written by students participating in the 2008 Undergraduate : Transportation Scholars Program. The ten-week summer program, now in its eighteenth year, provides : undergraduate students in Civil Enginee...

  10. Compendium of student papers : 2009 undergraduate transportation engineering fellows program.

    Science.gov (United States)

    2009-10-01

    This report is a compilation of research papers written by students participating in the 2009 Undergraduate : Transportation Scholars Program. The ten-week summer program, now in its nineteenth year, provides : undergraduate students in Civil Enginee...

  11. Compendium of student papers : 2010 undergraduate transportation scholars program.

    Science.gov (United States)

    2011-06-01

    This report is a compilation of research papers written by students participating in the 2010 Undergraduate : Transportation Scholars Program. The 10-week summer program, now in its 20th year, provides : undergraduate students in Civil Engineering th...

  12. Use of Social Media by Agricultural Undergraduate Students in ...

    African Journals Online (AJOL)

    User

    The study analysed the usage of social media sites by undergraduate agricultural students in ... with friends. Keywords: Social media, Agricultural Undergraduates, Nigeria ..... What we do about social media in tourism? A review. Tourism ...

  13. Selection of software for mechanical engineering undergraduates

    International Nuclear Information System (INIS)

    Cheah, C. T.; Yin, C. S.; Halim, T.; Naser, J.; Blicblau, A. S.

    2016-01-01

    A major problem with the undergraduate mechanical course is the limited exposure of students to software packages coupled with the long learning curve on the existing software packages. This work proposes the use of appropriate software packages for the entire mechanical engineering curriculum to ensure students get sufficient exposure real life design problems. A variety of software packages are highlighted as being suitable for undergraduate work in mechanical engineering, e.g. simultaneous non-linear equations; uncertainty analysis; 3-D modeling software with the FEA; analysis tools for the solution of problems in thermodynamics, fluid mechanics, mechanical system design, and solid mechanics.

  14. Personality and career decision making in undergraduates

    Directory of Open Access Journals (Sweden)

    Cabrera, Lidia

    2011-06-01

    Full Text Available The relationships between personality and career decision making in undergraduates are analyzed in this work. The hypothesis is that efficient personality is associated with the more mature process of career decision making. For this hypothesis, the Questionnaire of Efficient Personality and the Inventory of Career Factors was administered to 497 students in their final year of undergraduate school. The collected data was put under factorial analysis, analysis of differences of averages, and analysis of variance. The results confirm that an effective personality is tied to career decision making based as much on one´s knowledge of oneself as an understanding of the working world.

  15. Selection of software for mechanical engineering undergraduates

    Energy Technology Data Exchange (ETDEWEB)

    Cheah, C. T.; Yin, C. S.; Halim, T.; Naser, J.; Blicblau, A. S., E-mail: ablicblau@swin.edu.au [Swinburne University of Technology, Faculty of Science Engineering and Technology, PO Box 218 Hawthorn, Victoria, Australia, 3122 (Australia)

    2016-07-12

    A major problem with the undergraduate mechanical course is the limited exposure of students to software packages coupled with the long learning curve on the existing software packages. This work proposes the use of appropriate software packages for the entire mechanical engineering curriculum to ensure students get sufficient exposure real life design problems. A variety of software packages are highlighted as being suitable for undergraduate work in mechanical engineering, e.g. simultaneous non-linear equations; uncertainty analysis; 3-D modeling software with the FEA; analysis tools for the solution of problems in thermodynamics, fluid mechanics, mechanical system design, and solid mechanics.

  16. Teaching nuclear and radiochemistry at undergraduate colleges

    International Nuclear Information System (INIS)

    Kinard, W.F.

    1993-01-01

    A large fraction of the potential graduate students in chemistry come from undergraduate colleges. The exposure of these students to the field of nuclear and radiochemistry is limited by the fact that few professionals actively involved in the field teach at these schools. There is also increasing competition for the limited number of chemistry students by other chemical specializations. Innovative approaches such as a short course to introduce students to nuclear and radiochemistry and some of the needs for undergraduate teaching are discussed. (author) 6 refs.; 2 figs

  17. Graduate teaching assistants' perceptions of teaching competencies required for work in undergraduate science labs

    Science.gov (United States)

    Deacon, Christopher; Hajek, Allyson; Schulz, Henry

    2017-11-01

    Many post-secondary institutions provide training and resources to help GTAs fulfil their teaching roles. However, few programmes focus specifically on the teaching competencies required by GTAs who work with undergraduate students in laboratory settings where learning tends to be more active and inquiry based than in classroom settings. From a review of 8 GTA manuals, we identified 20 competencies and then surveyed faculty and lab coordinators (FIS) and GTAs from a Faculty of Science at a comprehensive Canadian university to identify which of those competencies are required of GTAs who work in undergraduate science labs. GTAs and FIS did not significantly differ in the competencies they view as required for GTAs to work effectively in undergraduate labs. But, when comparing the responses of GTAs and FIS to TA manuals, 'Clearly and effectively communicates ideas and information with students' was the only competency for which there was agreement on the level of requirement. We also examined GTAs' self-efficacy for each of the identified competencies and found no overall relationship between self-efficacy and demographic characteristics, including experience and training. Our results can be used to inform the design of training programmes specifically for GTAs who work in undergraduate science labs, for example, programmes should provide strategies for GTAs to obtain feedback which they can use to enhance their teaching skills. The goal of this study is to improve undergraduate lab instruction in faculties of science and to enhance the teaching experience of GTAs by better preparing them for their role.

  18. Using Interactive Data Visualizations for Exploratory Analysis in Undergraduate Genomics Coursework: Field Study Findings and Guidelines

    Science.gov (United States)

    Kumar, Anuj; Nong, Paige; Su, Gang; Meng, Fan

    2016-01-01

    Life scientists increasingly use visual analytics to explore large data sets and generate hypotheses. Undergraduate biology majors should be learning these same methods. Yet visual analytics is one of the most underdeveloped areas of undergraduate biology education. This study sought to determine the feasibility of undergraduate biology majors conducting exploratory analysis using the same interactive data visualizations as practicing scientists. We examined 22 upper level undergraduates in a genomics course as they engaged in a case-based inquiry with an interactive heat map. We qualitatively and quantitatively analyzed students’ visual analytic behaviors, reasoning and outcomes to identify student performance patterns, commonly shared efficiencies and task completion. We analyzed students’ successes and difficulties in applying knowledge and skills relevant to the visual analytics case and related gaps in knowledge and skill to associated tool designs. Findings show that undergraduate engagement in visual analytics is feasible and could be further strengthened through tool usability improvements. We identify these improvements. We speculate, as well, on instructional considerations that our findings suggested may also enhance visual analytics in case-based modules. PMID:26877625

  19. Internet Safety and Malaysian Students: A Study of Female Undergraduates and Their Net Pals

    Directory of Open Access Journals (Sweden)

    Cheong Lee Mei, Dianne

    2007-12-01

    Full Text Available Malaysian female undergraduates are perceived as able to rationally evaluate and estimate risks towards Net pals. Friendship is secured online while deception and fraud are revealed offline. Based on what they have been informed, the female undergraduates may know their Net pals’ likes and dislikes but the invisible cyber veil does not allow them to penetrate the illusion and accurately evaluate a person’s character and personality. This study examined how Malaysian female undergraduates use the Internet, perceive risks in meeting Net pals and the safety awareness surrounding cyber friendship. Responses of 118 female undergraduates (43% from UiTM, 30% from UM, 27% from MMU to a survey indicated that Net pals were befriended through chat rooms and websites. More than half of the female undergraduates would have a face-to-face meeting with their Net pals without the knowledge of relevant parties and have done at least one potentially unsafe behaviour. If the extent and level of Internet safety awareness is known, the problem of Internet deception that might lead to potential social problems such as rape and sexual abuse can be effectively addressed.

  20. An Approach to Integrating Health Disparities within Undergraduate Biomedical Engineering Education.

    Science.gov (United States)

    Vazquez, Maribel; Marte, Otto; Barba, Joseph; Hubbard, Karen

    2017-11-01

    Health disparities are preventable differences in the incidence, prevalence and burden of disease among communities targeted by gender, geographic location, ethnicity and/or socio-economic status. While biomedical research has identified partial origin(s) of divergent burden and impact of disease, the innovation needed to eradicate health disparities in the United States requires unique engagement from biomedical engineers. Increasing awareness of the prevalence and consequences of health disparities is particularly attractive to today's undergraduates, who have undauntedly challenged paradigms believed to foster inequality. Here, the Department of Biomedical Engineering at The City College of New York (CCNY) has leveraged its historical mission of access-and-excellence to integrate the study of health disparities into undergraduate BME curricula. This article describes our novel approach in a multiyear study that: (i) Integrated health disparities modules at all levels of the required undergraduate BME curriculum; (ii) Developed opportunities to include impacts of health disparities into undergraduate BME research projects and mentored High School summer STEM training; and (iii) Established health disparities-based challenges as BME capstone design and/or independent entrepreneurship projects. Results illustrate the rising awareness of health disparities among the youngest BMEs-to-be, as well as abundant undergraduate desire to integrate health disparities within BME education and training.

  1. Research on Improving the Training Quality of Undergraduate Communists in Independent Colleges

    Directory of Open Access Journals (Sweden)

    Lina Jiang

    2014-02-01

    Full Text Available Problems which undergraduate communists have in their motivations, ideal and faith to be members of Chinese Communist Party attach new trend and situation to the education and cultivation of undergraduate communists. The author has surveyed students of 14 departments in Beijing Normal University Zhuhai Campus. The questionnaire which is to learn the problems faced in the recruiting, cultivation and education of undergraduate communists, mainly concentrates on 5 aspects—motivations to be a party member, requirements for a party member, activities in students’ party branches, education of communists and recruiting of party members. At last, based on the analysis of the results and according to different groups, Beijing Normal University Zhuhai Campus, as an independent college, carries on multi-level party classes, delegates the authority of party class teaching and adopts popular mode of party classes. At the same time, she combines the classes with social work, enhances the evaluating work of party members and arouses the awareness of undergraduate communists, and also promotes the training quality of undergraduate communists.

  2. Undergraduate and graduate petroleum engineering education in the U.S

    International Nuclear Information System (INIS)

    Von Gonten, W.D.; Whiting, R.L.

    1992-01-01

    Petroleum Engineering educational programs produce graduates primarily for the upstream sector of the petroleum industry. This paper presents a summary of both the undergraduate and graduate petroleum engineering programs in the United States. The undergraduate portion of the paper will address the curriculum, accreditation, enrollments, student recruitment, faculty, jobs, starting salaries, and a historical perspective. The graduate section will address both master and doctoral level programs including the number and size of programs, curriculum, admission requirements, program administration, jobs, salaries, and a historical perspective

  3. Mental health teaching to UK psychology undergraduates: report of a survey

    OpenAIRE

    Cromby, John; Harper, David J.; Reavey, Paula

    2008-01-01

    One of the limitations on developing more progressive applied psychology\\ud training is the teaching received by students at undergraduate level. In this\\ud study, we focus on the provision of teaching about mental health or its\\ud equivalents (e.g. abnormal psychology and clinical psychology) on UK\\ud undergraduate psychology programmes. Most students who go on to train as\\ud clinical psychologists will have received teaching on modules like these. A\\ud survey questionnaire was sent to 109 u...

  4. Utilization of Oral Health Care Services by University Undergraduates in Lagos, Nigeria.

    Science.gov (United States)

    Makanjuola, J O; Uti, O G; Sofola, O O

    2015-01-01

    Data on the utilization of the available oral health facilities by university undergraduates is scarce in Nigeria. To determine the level of utilization of oral health care services and to identify the barriers to seeking treatment among University of Lagos students. A cross-sectional survey was carried out among University of Lagos undergraduates. Systematic sampling was used to select participants after randomly selecting a male and female hostel. Self-administered questionnaires were distributed to participants and collected immediately. The data was analyzed using Epi info version 6.04 software. Statistical significance was evaluated with chi square test and p-value facilities.

  5. Air, Ocean and Climate Monitoring Enhancing Undergraduate Training in the Physical, Environmental and Computer Sciences

    Science.gov (United States)

    Hope, W. W.; Johnson, L. P.; Obl, W.; Stewart, A.; Harris, W. C.; Craig, R. D.

    2000-01-01

    Faculty in the Department of Physical, Environmental and Computer Sciences strongly believe in the concept that undergraduate research and research-related activities must be integrated into the fabric of our undergraduate Science and Technology curricula. High level skills, such as problem solving, reasoning, collaboration and the ability to engage in research, are learned for advanced study in graduate school or for competing for well paying positions in the scientific community. One goal of our academic programs is to have a pipeline of research activities from high school to four year college, to graduate school, based on the GISS Institute on Climate and Planets model.

  6. Can Personalized Nudges Improve Learning in Hybrid Classes? Experimental Evidence from an Introductory Undergraduate Course

    Science.gov (United States)

    O'Connell, Stephen D.; Lang, Guido

    2018-01-01

    A field experiment was conducted to investigate whether personalized e-mail reminders can improve study consistency and learning outcomes in an introductory-level undergraduate course. By randomly assigning whether nearly 300 students would receive occasional e-mail messages encouraging out-of-class study, we find that these reminders increased…

  7. Correlates of Academic Procrastination and Mathematics Achievement of University Undergraduate Students

    Science.gov (United States)

    Akinsola, Mojeed Kolawole; Tella, Adedeji; Tella, Adeyinka

    2007-01-01

    Procrastination is now a common phenomenon among students, particularly those at the higher level. And this is doing more harm to their academic achievement than good. Therefore, this study examined the correlates between academic procrastination and mathematics achievement among the university mathematics undergraduate students. The study used a…

  8. A Model System for the Study of Gene Expression in the Undergraduate Laboratory

    Science.gov (United States)

    Hargadon, Kristian M.

    2016-01-01

    The flow of genetic information from DNA to RNA to protein, otherwise known as the "central dogma" of biology, is one of the most basic and overarching concepts in the biological sciences. Nevertheless, numerous studies have reported student misconceptions at the undergraduate level of this fundamental process of gene expression. This…

  9. Evaluating Pragmatic Competence in Nigerian Undergraduates' Language Errors within Descriptive ESL Writing

    Science.gov (United States)

    Muhammad, Anas Sa'idu; Nair, Subadrah Madhawa

    2017-01-01

    This study investigates the level of pragmatic competence for ESL writing skills among Nigerian undergraduates. Methodologically, it adopts descriptive research design within the explanatory framework of the QUAN-Qual model. The instruments used are descriptive essay text and focus group interview questions. In writing the descriptive essays, a…

  10. "You're Not Good Enough": Teaching Undergraduate Students about the Sexualization of Girls and Women

    Science.gov (United States)

    Moloney, Mairead Eastin; Pelehach, Lisa

    2014-01-01

    Sociologists have developed compelling pedagogical strategies to focus the undergraduate gaze on problems of gender and sexuality. Nested within the social construction of gender norms, the sexualization of girls and women negatively impacts individual, interpersonal, and societal levels of social interaction. Nevertheless, this important issue…

  11. A Modular Approach to Teaching Mathematical Modeling in Biotechnology in the Undergraduate Curriculum

    Science.gov (United States)

    Larripa, Kamila R.; Mazzag, Borbala

    2016-01-01

    Our paper describes a solution we found to a still existing need to develop mathematical modeling courses for undergraduate biology majors. Some challenges of such courses are: (i) relatively limited exposure of biology students to higher-level mathematical and computational concepts; (ii) availability of texts that can give a flavor of how…

  12. Non-Technical Skills in Undergraduate Degrees in Business: Development and Transfer

    Science.gov (United States)

    Jackson, Denise; Hancock, Phil

    2010-01-01

    The development of discipline-specific skills and knowledge is no longer considered sufficient in graduates of Bachelor level degrees in Business. Higher education providers are becoming increasingly responsible for the development of a generic skill set deemed essential in undergraduates. This required skill set comprises a broad range of…

  13. Who Really Answers the Questions? Using Glasser's Quality School Model in an Undergraduate Classroom

    Science.gov (United States)

    Logan, Jennifer; Plumlee, Gerald L.

    2012-01-01

    The authors discuss the effectiveness of the Quality School model and active learning in an undergraduate classroom setting. They compare performance levels of students in two course sections of Principles of Macroeconomics and two sections of Managerial Communications. Students are given an opportunity to help shape the structure of the…

  14. The Physiology Undergraduate Major in the University of Arizona College of Medicine: Past, Present, and Future

    Science.gov (United States)

    Henriksen, Erik J.; Atwater, Anne E.; Delamere, Nicholas A.; Dantzler, William H.

    2011-01-01

    The American Physiological Society (APS) and APS Council encourage the teaching of physiology at the undergraduate, graduate, and medical school levels to support the continued prominence of this area of science. One area identified by the APS Council that is of particular importance for the development of future physiologists (the…

  15. Introducing Statistical Research to Undergraduate Mathematical Statistics Students Using the Guitar Hero Video Game Series

    Science.gov (United States)

    Ramler, Ivan P.; Chapman, Jessica L.

    2011-01-01

    In this article we describe a semester-long project, based on the popular video game series Guitar Hero, designed to introduce upper-level undergraduate statistics students to statistical research. Some of the goals of this project are to help students develop statistical thinking that allows them to approach and answer open-ended research…

  16. Towards a Sustainable Approach to Nanotechnology by Integrating Life Cycle Assessment into the Undergraduate Engineering Curriculum

    Science.gov (United States)

    Kopelevich, Dmitry I.; Ziegler, Kirk J.; Lindner, Angela S.; Bonzongo, Jean-Claude J.

    2012-01-01

    Because rapid growth of nanotechnology is expected to lead to intentional and non-intentional releases, future engineers will need to minimize negative environmental and health impacts of nanomaterials. We developed two upper-level undergraduate courses centered on life-cycle assessment of nanomaterials. The first part of the course sequence…

  17. Hydrogen Storage Experiments for an Undergraduate Laboratory Course--Clean Energy: Hydrogen/Fuel Cells

    Science.gov (United States)

    Bailey, Alla; Andrews, Lisa; Khot, Ameya; Rubin, Lea; Young, Jun; Allston, Thomas D.; Takacs, Gerald A.

    2015-01-01

    Global interest in both renewable energies and reduction in emission levels has placed increasing attention on hydrogen-based fuel cells that avoid harm to the environment by releasing only water as a byproduct. Therefore, there is a critical need for education and workforce development in clean energy technologies. A new undergraduate laboratory…

  18. What Influences Chinese Undergraduates' Time Management in Online Groupwork? An Empirical Investigation

    Science.gov (United States)

    Xu, Jianzhong; Du, Jianxia; Fan, Xitao

    2017-01-01

    The present investigation examines models of factors influencing time management in online groupwork for Chinese undergraduates. Multilevel findings showed that time management was positively related to five individual-level variables, including online courses taken previously, learning-oriented reasons, arranging the environment, help-seeking and…

  19. "Not Necessarily a Bad Thing ...": A Study of Online Plagiarism amongst Undergraduate Students

    Science.gov (United States)

    Selwyn, Neil

    2008-01-01

    Whilst the copying, falsification and plagiarism of essays and assignments has long been a prevalent form of academic misconduct amongst undergraduate students, the increasing use of the internet in higher education has raised concern over enhanced levels of online plagiarism and new types of "cyber-cheating". Based on a self-report…

  20. The Motivation to Study: An Analysis of Undergraduate Engineering Students at a Caribbean University

    Science.gov (United States)

    Maharaj, Chris; Blair, Erik; Chin Yuen Kee, Sarah

    2018-01-01

    The link between motivation and success is well documented; however, there is still room to problematise motivation in regards to the individual and contextual levels. This study looks at motivation in relation to students studying undergraduate engineering courses at a Caribbean university and seeks to discover the factors that motivate them to…

  1. Commognitive Analysis of Undergraduate Mathematics Students' First Encounter with the Subgroup Test

    Science.gov (United States)

    Ioannou, Marios

    2018-01-01

    This study analyses learning aspects of undergraduate mathematics students' first encounter with the subgroup test, using the commognitive theoretical framework. It focuses on students' difficulties as these are related to the object-level and metalevel mathematical learning in group theory, and, when possible, highlights any commognitive…

  2. Undergraduate Students' Conceptions of Natural and Anthropogenic Climate Change: A Case Study Approach

    Science.gov (United States)

    Trenbath, Thien-Kim Leckie

    2012-01-01

    This dissertation shows the evolution of five undergraduate students' ideas of natural and anthropogenic climate change throughout a lecture hall course on climate change. This research was informed by conceptual change theory and students' inaccurate ideas of climate change. Subjects represented different levels of climate change understanding at…

  3. Testing Plastic Deformations of Materials in the Introductory Undergraduate Mechanics Laboratory

    Science.gov (United States)

    Romo-Kroger, C. M.

    2012-01-01

    Normally, a mechanics laboratory at the undergraduate level includes an experiment to verify compliance with Hooke's law in materials, such as a steel spring and an elastic rubber band. Stress-strain curves are found for these elements. Compression in elastic bands is practically impossible to achieve due to flaccidity. A typical experiment for…

  4. Solution of the Schrodinger Equation for One-Dimensional Anharmonic Potentials: An Undergraduate Computational Experiment

    Science.gov (United States)

    Beddard, Godfrey S.

    2011-01-01

    A method of solving the Schrodinger equation using a basis set expansion is described and used to calculate energy levels and wavefunctions of the hindered rotation of ethane and the ring puckering of cyclopentene. The calculations were performed using a computer algebra package and the calculations are straightforward enough for undergraduates to…

  5. Writing toward a Scientific Identity: Shifting from Prescriptive to Reflective Writing in Undergraduate Biology

    Science.gov (United States)

    Otfinowski, Rafael; Silva-Opps, Marina

    2015-01-01

    Analytical writing enhances retention of science learning and is integral to student-centered classrooms. Despite this, scientific writing in undergraduate programs is often presented as a series of sentence-level conventions of grammar, syntax, and citation formats, reinforcing students' perceptions of its highly prescriptive nature. The authors…

  6. Undergraduate Program Review Processes: A Case Study in Opportunity for Academic Libraries

    Science.gov (United States)

    Costella, John; Adam, Tom; Gray, Fran; Nolan, Nicole; Wilkins, Catherine

    2013-01-01

    How can an academic library most effectively participate and expand its contributions to program reviews at the institutional level? By becoming involved in undergraduate reviews, college and university libraries can articulate new and enhanced roles for themselves on campus. Academic libraries have always contributed to a variety of institutional…

  7. What Effect Does Flipping the Classroom Have on Undergraduate Student Perceptions and Grades?

    Science.gov (United States)

    Molnar, Kathleen K.

    2017-01-01

    There is a lack of consensus of the effects on student perceptions and performance in flipping the classroom and its possible value over the traditional face-to-face (FTF) classroom approach. This research examines the expectation that flipping an undergraduate, introductory level, information concepts and skills class would benefit student…

  8. Comparing Online to Face-To-Face Delivery of Undergraduate Digital Circuits Content

    Science.gov (United States)

    LaMeres, Brock J.; Plumb, Carolyn

    2014-01-01

    This paper presents a comparison of online to traditional face-to-face delivery of undergraduate digital systems material. Two specific components of digital content were compared and evaluated: a sophomore logic circuits course with no laboratory, and a microprocessor laboratory component of a junior-level computer systems course. For each of…

  9. Have You Considered Accounting? Opportunities for Women Are Expanding. Career Options Series for Undergraduate Women.

    Science.gov (United States)

    Rowes, Barbara

    This booklet is part of a set of self-guidance publications prepared by Catalyst, a national nonprofit organization. It is written specifically for undergraduate women to help them bring their aspirations into focus, develop realistic career goals and plan for career options in fields which, at the managerial and professional levels, have been…

  10. Mobile Phone Applications in the University Classroom: Perceptions of Undergraduate Students in Jordan

    Science.gov (United States)

    Ashour, Rateb; Alzghool, Haneen; Iyadat, Yousef; Abu-Alruz, Jamal

    2012-01-01

    The primary purpose of this study is to determine the level of mobile phone applications in university classrooms in Jordan. A sample of 313 undergraduate students participated in the study by completing the researchers' designed questionnaire, which is composed of 13 items. The results of the study indicate that participants perceived a high…

  11. Adaptation to Altitude as a Vehicle for Experiential Learning of Physiology by University Undergraduates

    Science.gov (United States)

    Weigle, David S.; Buben, Amelia; Burke, Caitlin C.; Carroll, Nels D.; Cook, Brett M.; Davis, Benjamin S.; Dubowitz, Gerald; Fisher, Rian E.; Freeman, Timothy C.; Gibbons, Stephen M.; Hansen, Hale A.; Heys, Kimberly A.; Hopkins, Brittany; Jordan, Brittany L.; McElwain, Katherine L.; Powell, Frank L.; Reinhart, Katherine E.; Robbins, Charles D.; Summers, Cameron C.; Walker, Jennifer D.; Weber, Steven S.; Weinheimer, Caroline J.

    2007-01-01

    In this article, an experiential learning activity is described in which 19 university undergraduates made experimental observations on each other to explore physiological adaptations to high altitude. Following 2 wk of didactic sessions and baseline data collection at sea level, the group ascended to a research station at 12,500-ft elevation.…

  12. The Challenges of Incorporating ePortfolio into an Undergraduate Nursing Programme

    Science.gov (United States)

    Haggerty, Carmel; Thompson, Trish

    2017-01-01

    Registered nurses today are required to maintain a portfolio of evidence of their competence to practice. This evidence collection commences at undergraduate level with nursing programmes requiring portfolio's as assessments, which are often submitted in hard copy. This paper describes the outcome when a small group of tutorial staff introduced…

  13. Anthropogenic Climate Change in Undergraduate Marine and Environmental Science Programs in the United States

    Science.gov (United States)

    Vlietstra, Lucy S.; Mrakovcich, Karina L.; Futch, Victoria C.; Stutzman, Brooke S.

    2016-01-01

    To develop a context for program-level design decisions pertaining to anthropogenic climate change, the authors studied the prevalence of courses focused on human-induced climate change in undergraduate marine science and environmental science degree programs in the United States. Of the 86 institutions and 125 programs the authors examined, 37%…

  14. Experiences in Developing an Experimental Robotics Course Program for Undergraduate Education

    Science.gov (United States)

    Jung, Seul

    2013-01-01

    An interdisciplinary undergraduate-level robotics course offers students the chance to integrate their engineering knowledge learned throughout their college years by building a robotic system. Robotics is thus a core course in system and control-related engineering education. This paper summarizes the experience of developing robotics courses…

  15. An Epistemological Inquiry into Organic Chemistry Education: Exploration of Undergraduate Students' Conceptual Understanding of Functional Groups

    Science.gov (United States)

    Akkuzu, Nalan; Uyulgan, Melis Arzu

    2016-01-01

    This study sought to determine the levels of conceptual understanding of undergraduate students regarding organic compounds within different functional groups. A total of 60 students who were enrolled in the Department of Secondary Science and Mathematics Education of a Faculty of Education at a state university in Turkey and who had followed an…

  16. Environmental Literacy of Undergraduate College Students: Development of the Environmental Literacy Instrument (ELI)

    Science.gov (United States)

    Lloyd-Strovas, Jenny; Moseley, Christine; Arsuffi, Tom

    2018-01-01

    As the world population continues to increase and natural resources become limited, environmental education (EE) in universities play an essential role in developing environmentally literate. This study measured the environmental literacy (EL) levels (familiar knowledge, factual knowledge, attitude, behavior) of undergraduate college students.…

  17. An Overview of Undergraduate Training in Cultural Competency and Cross-Cultural Psychiatry

    Science.gov (United States)

    Lyons, Zaza; Laugharne, Jonathan

    2011-01-01

    Multiculturalism is a familiar concept in many developed countries. While cultural competency training is part of most medical curricula, training in cultural psychiatry at the undergraduate level is typically minimal. It is important that medical graduates are both culturally competent and able to respond to the mental health needs of patients…

  18. Graduate and undergraduate students’ reaction to the teaching procedures used in semipresential classes

    Directory of Open Access Journals (Sweden)

    Henry Maia Peixoto

    2013-12-01

    Full Text Available The objective of this study was to investigate the reactions of undergraduate and graduate students to the teaching procedures used in semipresential classes. This exploratory study was performed with a quantitative approach at a public university, with undergraduate and graduate students who had completed semipresential classes on health promotion education. Among the 19 evaluated teaching procedures, 15 (78.9% did not show any statistically significant differences between the two academic levels. The means and medians for most variables, for both undergraduate (78.9% and graduate (89.5% students, were above 7 in a scale ranging between 0 (awful and 10 (excellent. Therefore, it is concluded that both groups showed similar reactions to the teaching procedures and gave satisfactory opinions in this regard. Understanding these aspects can support designing class disciplines that use teaching procedures that are adequate to university students. Descriptors: Education, Distance; Education, Higher; Learning; Educational Measurement.

  19. Adoption Assessment of Internet Usage Amongst Undergraduates In Nigeria Universities -A Case Study Approach

    Directory of Open Access Journals (Sweden)

    Michael Olusesan Awoleye

    2008-04-01

    Full Text Available This study focused on the level of penetration of Internet usage among undergraduate students in Nigeria using Obafemi Awolowo University as a case study. Result showed that about 92% of undergraduate students have embraced the Internet and are using it consistently. The online mean time is 3.5hrs/week while on the average, undergraduate experience of Internet usage is about 4years. We found also that the students use the Internet mostly for e-mail, information search and online chatting; all of these were found to have significant impact on their academics and social life. Further analysis revealed that gender attitude is also an important issue; male students appear to use the Internet more than their female counterparts; just as science based students use it more than the non-science based students. The paper therefore recommends appropriate policies for all higher schools of learning in Nigeria to facilitate further diffusion and use of the Internet.

  20. An exploration of fourth-year undergraduate nurses' knowledge of and attitude towards pressure ulcer prevention.

    Science.gov (United States)

    Cullen Gill, E; Moore, Z

    2013-11-01

    To determine undergraduate nurses' knowledge of and attitudes towards pressure ulcer prevention. A quantitative, cross-sectional survey design was used for this study. Ethical approval was received. A convenience sample of fourth-year undergraduate nurses was selected to participate (n=60). Data were collected using a pre-designed questionnaire. Overall, the participants showed a positive attitude towards pressure ulcer prevention but displayed poor knowledge of pressure ulcer prevention. Interestingly, having a high level of competency corresponded with having a positive attitude towards pressure ulcer prevention, but did not equate to possessing knowledge of pressure ulcer prevention. The findings of this study suggest that fourth-year undergraduates have a positive attitude but lack adequate knowledge on the prevention of pressure ulcers. There were no external sources of funding for this study. The authors have no conflicts of interest to declare.

  1. Intrinsic and extrinsic goals as moderators of stress and depressive symptoms in Chinese undergraduate students: A multi-wave longitudinal study.

    Science.gov (United States)

    Ling, Yu; He, Yushu; Wei, Yong; Cen, Weihong; Zhou, Qi; Zhong, Mingtian

    2016-05-11

    Studies in western countries have examined the specific vulnerability hypothesis of Dykman's theory of goal-orientation predispositions to depression through two-time point designs. The purpose of this prospective longitudinal study was to investigate the moderating effects of intrinsic and extrinsic goals on stress and depressive symptoms in Chinese undergraduate students. A total of 462 undergraduate students [46% female; mean age, 19.06 (range, 17-22) years] completed self-reported measures assessing intrinsic and extrinsic goals, depressive symptoms, and the occurrence of social and academic hassles. Every 3 months over the subsequent 12 months, the undergraduate students completed measures assessing depressive symptoms and the occurrence of daily hassles. Results of hierarchical linear modeling analyses indicated that undergraduate students with low levels of intrinsic goals reported greater depressive symptoms following the occurrence of social and academic hassles than did those with high levels of such goals. However, undergraduate students with high levels of extrinsic goals did not report greater depressive symptoms following the occurrence of social and academic hassles than did those possessing low levels. These findings suggest that intrinsic goals can protect undergraduate students experiencing high levels of social and academic hassles from depressive symptoms. The study findings provide new insight into the course of depressive symptoms among undergraduate students, and offer psychologist and psychiatrists ways to protect individuals from depressive symptoms by building up intrinsic goals.

  2. Flipped Learning With Simulation in Undergraduate Nursing Education.

    Science.gov (United States)

    Kim, HeaRan; Jang, YounKyoung

    2017-06-01

    Flipped learning has proliferated in various educational environments. This study aimed to verify the effects of flipped learning on the academic achievement, teamwork skills, and satisfaction levels of undergraduate nursing students. For the flipped learning group, simulation-based education via the flipped learning method was provided, whereas traditional, simulation-based education was provided for the control group. After completion of the program, academic achievement, teamwork skills, and satisfaction levels were assessed and analyzed. The flipped learning group received higher scores on academic achievement, teamwork skills, and satisfaction levels than the control group, including the areas of content knowledge and clinical nursing practice competency. In addition, this difference gradually increased between the two groups throughout the trial. The results of this study demonstrated the positive, statistically significant effects of the flipped learning method on simulation-based nursing education. [J Nurs Educ. 2017;56(6):329-336.]. Copyright 2017, SLACK Incorporated.

  3. Knowledge of cardiovascular disease in Turkish undergraduate nursing students.

    Science.gov (United States)

    Badir, Aysel; Tekkas, Kader; Topcu, Serpil

    2015-10-01

    Cardiovascular disease is the number one cause of death worldwide. However, there is not enough data exploring student nurses' understanding, knowledge, and awareness of cardiovascular disease. To investigate knowledge of cardiovascular disease and its risk factors among undergraduate nursing students, with an emphasis on understanding of cardiovascular disease as the primary cause of mortality and morbidity, both in Turkey and worldwide. This cross-sectional survey assessed 1138 nursing students enrolled in nursing schools in Istanbul, Turkey. Data were collected using the Cardiovascular Disease Risk Factors Knowledge Level (CARRF-KL) scale and questions from the Individual Characteristics Form about students' gender, age, level of education, and family cardiovascular health history, as well as smoking and exercise habits. Respondents demonstrated a high level of knowledge about cardiovascular disease, with years of education (p healthy, they could improve their practice of health-promoting behaviors. © The European Society of Cardiology 2014.

  4. A Construction of Global Literacy Indicators for Undergraduates

    Directory of Open Access Journals (Sweden)

    Lung-Sheng Lee

    2017-06-01

    Full Text Available In the era of glocalization and logloblization, only university graduates who are globally literate can effectively deal with international affairs or work overseas. Therefore, this study aimed to construct a set of global literacy indicators for undergraduates in Taiwan. The global literacy indicators can be used as a guide to assess undergraduates’ global literacy level and serve as the foundation for developing global education curriculums. Employing a theoretical framework, this study drafted global literacy dimensions and indicators from reviewing related literature, and invited 18 practitioners with international experience to participate in this study. During the item development process, fuzzy Delphi method (FDM and analytic hierarchy process (AHP were applied to select and weight global literacy indicators respectively. Consequently, a set of global literacy indicators for undergraduates were constructed, which include the following four dimensions: communication, context, career development, and culture. “Communication” is the most important dimension among them, while “communicate with foreign languages” and “use information and communication technology (ICT to communicate with others” are the most important indicators and items at the second and third hierarchical levels, respectively.

  5. Negotiating Peer Mentoring Roles in Undergraduate Research Lab Settings

    Science.gov (United States)

    Packard, Becky W.; Marciano, Vincenza N.; Payne, Jessica M.; Bledzki, Leszek A.; Woodard, Craig T.

    2014-01-01

    Undergraduate research is viewed as an important catalyst for educational engagement and persistence, with an emphasis on the faculty mentoring relationship. Despite the common practice of having multi-tiered lab teams composed of newer undergraduates and more seasoned undergraduates serving as peer mentors, less is understood about the experience…

  6. Eating Disorders and Body Image of Undergraduate Men

    Science.gov (United States)

    Ousley, Louise; Cordero, Elizabeth Diane; White, Sabina

    2008-01-01

    Eating disorders and body dissatisfaction among undergraduate men are less documented and researched than are eating disorders and body dissatisfaction among undergraduate women. Objective and Participants: In this study, the authors examined these issues in undergraduate men to identify similarities and differences between this population and…

  7. Undergraduate Origins of Recent Science and Engineering Doctorate Recipients.

    Science.gov (United States)

    Hill, Susan T.; And Others

    Because undergraduate education is the foundation for graduate studies, it is important to know where our Nation's science and engineering (S&E) doctorate recipients are receiving their undergraduate training. Specifically, this report addresses the following broad questions: (1) What are the undergraduate origins of S&E doctorate holders? (2)…

  8. Establishing Common Course Objectives for Undergraduate Exercise Physiology

    Science.gov (United States)

    Simonson, Shawn R.

    2015-01-01

    Undergraduate exercise physiology is a ubiquitous course in undergraduate kinesiology/exercise science programs with a broad scope and depth of topics. It is valuable to explore what is taught within this course. The purpose of the present study was to facilitate an understanding of what instructors teach in undergraduate exercise physiology, how…

  9. A Survey of Campus Coordinators of Undergraduate Research Programs

    Science.gov (United States)

    Hensley, Merinda Kaye; Shreeves, Sarah L.; Davis-Kahl, Stephanie

    2015-01-01

    Interest in supporting undergraduate research programs continues to grow within academic librarianship. This article presents how undergraduate research program coordinators perceive and value library support of their programs. Undergraduate research coordinators from a variety of institutions were surveyed on which elements of libraries and…

  10. Undergraduate Biocuration: Developing Tomorrow’s Researchers While Mining Today’s Data

    Science.gov (United States)

    Mitchell, Cassie S.; Cates, Ashlyn; Kim, Renaid B.; Hollinger, Sabrina K.

    2015-01-01

    Biocuration is a time-intensive process that involves extraction, transcription, and organization of biological or clinical data from disjointed data sets into a user-friendly database. Curated data is subsequently used primarily for text mining or informatics analysis (bioinformatics, neuroinformatics, health informatics, etc.) and secondarily as a researcher resource. Biocuration is traditionally considered a Ph.D. level task, but a massive shortage of curators to consolidate the ever-mounting biomedical “big data” opens the possibility of utilizing biocuration as a means to mine today’s data while teaching students skill sets they can utilize in any career. By developing a biocuration assembly line of simplified and compartmentalized tasks, we have enabled biocuration to be effectively performed by a hierarchy of undergraduate students. We summarize the necessary physical resources, process for establishing a data path, biocuration workflow, and undergraduate hierarchy of curation, technical, information technology (IT), quality control and managerial positions. We detail the undergraduate application and training processes and give detailed job descriptions for each position on the assembly line. We present case studies of neuropathology curation performed entirely by undergraduates, namely the construction of experimental databases of Amyotrophic Lateral Sclerosis (ALS) transgenic mouse models and clinical data from ALS patient records. Our results reveal undergraduate biocuration is scalable for a group of 8–50+ with relatively minimal required resources. Moreover, with average accuracy rates greater than 98.8%, undergraduate biocurators are equivalently accurate to their professional counterparts. Initial training to be completely proficient at the entry-level takes about five weeks with a minimal student time commitment of four hours/week. PMID:26557796

  11. Cooperative learning in the first year of undergraduate medical education

    Directory of Open Access Journals (Sweden)

    Kanthan Rani

    2007-11-01

    Full Text Available Abstract Background Despite extensive research data indicating that cooperative learning promotes higher achievement, the creation of positive relationships, and greater psychological health for students at all levels in their education, cooperative learning as a teaching strategy is still underutilized in undergraduate medical education. Methods A cooperative learning task was introduced as part of the mandatory first Year undergraduate Pathology course. The task was to create an 8.5" × 11" poster summary of pre-assigned content in self-chosen groups of four or five students. On the designated "Poster Day," the posters were displayed and evaluated by the students using a group product evaluation. Students also completed an individual group process reflection survey. An objective evaluation of their understanding was gauged at the midterm examination by specific content-related questions. Results Majority (91–96% of students judged the group products to be relevant, effective, easy-to-understand, and clearly communicated. The majority of the students (90–100% agreed that their group process skills of time management, task collaboration, decision-making and task execution were effective in completing this exercise. This activity created a dynamic learning environment as was reflected in the students' positive, professional discussion, and evaluation of their posters. The content-related questions on the midterm examination were answered correctly by 70–92% of the students. This was a mutually enriching experience for the instructor and students. Conclusion These findings demonstrate that cooperative learning as a teaching strategy can be effectively incorporated to address both content and interpersonal skill development in the early years of undergraduate medical education.

  12. Transforming Undergraduate Education Through the use of Analytical Reasoning (TUETAR)

    Science.gov (United States)

    Bishop, M. P.; Houser, C.; Lemmons, K.

    2015-12-01

    Traditional learning limits the potential for self-discovery, and the use of data and knowledge to understand Earth system relationships, processes, feedback mechanisms and system coupling. It is extremely difficult for undergraduate students to analyze, synthesize, and integrate quantitative information related to complex systems, as many concepts may not be mathematically tractable or yet to be formalized. Conceptual models have long served as a means for Earth scientists to organize their understanding of Earth's dynamics, and have served as a basis for human analytical reasoning and landscape interpretation. Consequently, we evaluated the use of conceptual modeling, knowledge representation and analytical reasoning to provide undergraduate students with an opportunity to develop and test geocomputational conceptual models based upon their understanding of Earth science concepts. This study describes the use of geospatial technologies and fuzzy cognitive maps to predict desertification across the South-Texas Sandsheet in an upper-level geomorphology course. Students developed conceptual models based on their understanding of aeolian processes from lectures, and then compared and evaluated their modeling results against an expert conceptual model and spatial predictions, and the observed distribution of dune activity in 2010. Students perceived that the analytical reasoning approach was significantly better for understanding desertification compared to traditional lecture, and promoted reflective learning, working with data, teamwork, student interaction, innovation, and creative thinking. Student evaluations support the notion that the adoption of knowledge representation and analytical reasoning in the classroom has the potential to transform undergraduate education by enabling students to formalize and test their conceptual understanding of Earth science. A model for developing and utilizing this geospatial technology approach in Earth science is presented.

  13. Scientific Visualization Tools for Enhancement of Undergraduate Research

    Science.gov (United States)

    Rodriguez, W. J.; Chaudhury, S. R.

    2001-05-01

    Undergraduate research projects that utilize remote sensing satellite instrument data to investigate atmospheric phenomena pose many challenges. A significant challenge is processing large amounts of multi-dimensional data. Remote sensing data initially requires mining; filtering of undesirable spectral, instrumental, or environmental features; and subsequently sorting and reformatting to files for easy and quick access. The data must then be transformed according to the needs of the investigation(s) and displayed for interpretation. These multidimensional datasets require views that can range from two-dimensional plots to multivariable-multidimensional scientific visualizations with animations. Science undergraduate students generally find these data processing tasks daunting. Generally, researchers are required to fully understand the intricacies of the dataset and write computer programs or rely on commercially available software, which may not be trivial to use. In the time that undergraduate researchers have available for their research projects, learning the data formats, programming languages, and/or visualization packages is impractical. When dealing with large multi-dimensional data sets appropriate Scientific Visualization tools are imperative in allowing students to have a meaningful and pleasant research experience, while producing valuable scientific research results. The BEST Lab at Norfolk State University has been creating tools for multivariable-multidimensional analysis of Earth Science data. EzSAGE and SAGE4D have been developed to sort, analyze and visualize SAGE II (Stratospheric Aerosol and Gas Experiment) data with ease. Three- and four-dimensional visualizations in interactive environments can be produced. EzSAGE provides atmospheric slices in three-dimensions where the researcher can change the scales in the three-dimensions, color tables and degree of smoothing interactively to focus on particular phenomena. SAGE4D provides a navigable

  14. Undergraduate Researchers and the Poster Session

    Science.gov (United States)

    Johnson, Gail; Green, Raymond

    2007-01-01

    Undergraduates presented original research in classroom poster sessions open to students, faculty, and friends. We assessed the reaction of the students to the experience and their reported change in their interest in presenting at conferences. Students enjoyed the poster session experience and indicated they preferred this method over other…

  15. Undergraduate Seminars: The Poster Session Solution.

    Science.gov (United States)

    Chute, Douglas L.; Bank, Barry

    1983-01-01

    A good alternative to the undergraduate psychology seminar is the poster session. During the course each student wrote a review paper. For use in his/her class presentation, the student provided the following information on poster paper: title, author, abstract, a few graphs or illustrations from the literature, conclusions, and references. (RM)

  16. Obsidian Hydration Dating in the Undergraduate Curriculum.

    Science.gov (United States)

    Manche, Emanuel P.; Lakatos, Stephen

    1986-01-01

    Provides an overview of obsidian hydration dating for the instructor by presenting: (1) principles of the method; (2) procedures; (3) applications; and (4) limitations. The theory of the method and one or more laboratory exercises can be easily introduced into the undergraduate geology curriculum. (JN)

  17. Undergraduate Education: Seeking the Golden Mean.

    Science.gov (United States)

    Brand, Myles

    1992-01-01

    It is not research and undergraduate teaching that are in conflict, but how we perceive and value those activities and organize our institutions to reflect those attitudes. Remedies include renewing faculty and graduate student commitment to home campuses, appropriate evaluation and rewards for excellence in teaching, and institutional…

  18. A Green Marketing Course for Business Undergraduates

    Science.gov (United States)

    Rudell, Fredrica

    2011-01-01

    Since the 1970s, periodic calls have been made for incorporation of sustainability issues into marketing and other business courses. Now more than ever, we need to prepare students for careers in the green economy. This article will describe the author's experience teaching a Green Marketing course to business undergraduates. A review of content,…

  19. University Undergraduate Students, Perceptions of The Wireless ...

    African Journals Online (AJOL)

    The study focused on Uni versity Undergraduate students' perceptions of the use of the wireless internet of Abubakar Tafawa Balewa University, Bauchi, Nigeria. Using emperical and new field data, this exploratory study investigated the students' perceptions of internet use in relation to library use. The study adopted a ...

  20. Internet Use Among Science Undergraduate Students: A ...

    African Journals Online (AJOL)

    The objective of this study was to identify and determine the extent of students\\' access to, and use of the Internet using the Science Undergraduate Students of University of Ibadan and University of Lagos as a case study. The study also aimed at comparing the rate of use among this group of students and determine which ...

  1. Undergraduate students' perception and Utilization of electronic ...

    African Journals Online (AJOL)

    An evaluation of undergraduate students' perception and utilization of electronic information resources and services was carried out. The population of the study consisted of all registered library users in the 2014/2015 academic session. The total population of the study was 4, 211 registered users. Accidental sampling ...

  2. Constructive Learning in Undergraduate Linear Algebra

    Science.gov (United States)

    Chandler, Farrah Jackson; Taylor, Dewey T.

    2008-01-01

    In this article we describe a project that we used in our undergraduate linear algebra courses to help our students successfully master fundamental concepts and definitions and generate interest in the course. We describe our philosophy and discuss the projects overall success.

  3. Principles for Quality Undergraduate Education in Psychology

    Science.gov (United States)

    American Psychologist, 2011

    2011-01-01

    The principles for undergraduate education in psychology presented here are designed for creating a world-class educational system that provides students with the workplace skills needed in this information age; a solid academic background that prepares them for advanced study in a wide range of fields; and the knowledge, skills, and abilities…

  4. Mathematical Modeling in the Undergraduate Curriculum

    Science.gov (United States)

    Toews, Carl

    2012-01-01

    Mathematical modeling occupies an unusual space in the undergraduate mathematics curriculum: typically an "advanced" course, it nonetheless has little to do with formal proof, the usual hallmark of advanced mathematics. Mathematics departments are thus forced to decide what role they want the modeling course to play, both as a component of the…

  5. Leading Undergraduate Research Projects in Mathematical Modeling

    Science.gov (United States)

    Seshaiyer, Padmanabhan

    2017-01-01

    In this article, we provide some useful perspectives and experiences in mentoring students in undergraduate research (UR) in mathematical modeling using differential equations. To engage students in this topic, we present a systematic approach to the creation of rich problems from real-world phenomena; present mathematical models that are derived…

  6. Fourier transform infrared spectrometery: an undergraduate experiment

    International Nuclear Information System (INIS)

    Lerner, L

    2016-01-01

    Simple apparatus is developed, providing undergraduate students with a solid understanding of Fourier transform (FT) infrared (IR) spectroscopy in a hands on experiment. Apart from its application to measuring the mid-IR spectra of organic molecules, the experiment introduces several techniques with wide applicability in physics, including interferometry, the FT, digital data analysis, and control theory. (paper)

  7. Students' Perceptions of Assessment in Undergraduate Mathematics

    Science.gov (United States)

    Iannone, Paola; Simpson, Adrian

    2013-01-01

    A consistent message emerges from research on undergraduate students' perceptions of assessment which describes traditional assessment as detrimental to learning. However this literature has not included students in the pure sciences. Mathematics education literature advocates the introduction of innovative assessment at university. In this…

  8. Dental undergraduate students' knowledge, attitudes and practices ...

    African Journals Online (AJOL)

    Background. Dental students are seen as role-models for promoting good oral health behaviour, yet there is little published evidence in South Africa (SA) that describes student knowledge and attitudes towards their own oral healthcare. Objective. To investigate undergraduate dental therapy and oral hygiene students' ...

  9. NOAA's Undergraduate Scholarship Program Outcomes and Opportunities

    Science.gov (United States)

    Kaplan, M.; Jabanoski, K.; Christenson, T.

    2017-12-01

    NOAA supports about 115 - 150 undergraduates per year through the Ernest F. Hollings Scholarship and the Educational Partnership Program Undergraduate Scholarship. These programs provide tuition support and paid summer internships at NOAA to exceptional students majoring in the geosciences. Multiple methods were used to evaluate program outcomes and track the career trajectories, including mining LinkedIn data and conducting evaluation surveys of recipients as well as students who applied but did not receive the award. Results show more than 75% of scholars continued on to graduate school, primarily in a NOAA mission fields. This compared to only 56% of nonrecipients. More than 60% of alumni had at least one professional record, with the most alumni working in private industry, followed by nongovernmental organizations and federal, state and local government. The evaluation identified 77 other scholarship programs applied to by NOAA scholarship recipients. The most commonly reported program was the NSF Research Experiences for Undergraduates (REU) for which 20% of scholars applied and 46% of applications were successful. Other common scholarships included the Goldwater Scholarship (received by 5% of NOAA scholars) and the Udall Scholarship (received by 4% of scholars). In the most recent class of 118 undergraduate scholars, 24% reported having another research experience by the time they arrived for orientation at the end of their sophomore year. These results suggest coordination across scholarship opportunities may be useful to engage and retain students in geoscience fields.

  10. Student Performance in Undergraduate Economics Courses

    Science.gov (United States)

    Mumford, Kevin J.; Ohland, Matthew W.

    2011-01-01

    Using undergraduate student records from six large public universities from 1990 to 2003, the authors analyze the characteristics and performance of students by major in two economics courses: Principles of Microeconomics and Intermediate Microeconomics. This article documents important differences across students by major in the principles course…

  11. Heat Exchanger Lab for Chemical Engineering Undergraduates

    Science.gov (United States)

    Rajala, Jonathan W.; Evans, Edward A.; Chase, George G.

    2015-01-01

    Third year chemical engineering undergraduate students at The University of Akron designed and fabricated a heat exchanger for a stirred tank as part of a Chemical Engineering Laboratory course. The heat exchanger portion of this course was three weeks of the fifteen week long semester. Students applied concepts of scale-up and dimensional…

  12. Centrifugal Pump Experiment for Chemical Engineering Undergraduates

    Science.gov (United States)

    Vanderslice, Nicholas; Oberto, Richard; Marrero, Thomas R.

    2012-01-01

    The purpose of this paper is to describe a Centrifugal Pump Experiment that provided an experiential learning experience to chemical engineering undergraduates at the University of Missouri in the spring of 2010 in the Unit Operations Laboratory course. Lab equipment was used by senior students with computer-based data and control technology. In…

  13. American Muslim Undergraduates' Views on Evolution

    Science.gov (United States)

    Fouad, Khadija Engelbrecht

    2016-01-01

    A qualitative investigation into American Muslim undergraduates' views on evolution revealed three main positions on evolution: theistic evolution, a belief in special creation of all species, and a belief in special creation of humans with evolution for all non-human species. One can conceive of the manner in which respondents chose their…

  14. sexual promiscuity among female undergraduates in tertiary

    African Journals Online (AJOL)

    Elizabeth Egbochuku

    female undergraduates, the causes and effects of such unhealthy behaviour on healthy living. Hence ... larger scale what they started in secondary schools. Again ... 1, 2010. 103 mostly under the influence of “psychotropic drugs” that put them in a ... the respondents on issues relating to sexual promiscuity and its attendant.

  15. Undergraduate Economics Journals: Learning by Doing

    Science.gov (United States)

    Leekley, Robert M.; Davis-Kahl, Stephanie; Seeborg, Michael C.

    2013-01-01

    Although there are currently only a few undergraduate journals in economics, we expect their numbers to increase substantially in the future because of several developments: (1) research and writing activity is increasing in economics programs, (2) online publication is now more feasible and cost efficient than ever, and (3) students are…

  16. Ethnic Diversity in Geography Undergraduate Programs

    Science.gov (United States)

    Estaville, Lawrence E.; Akiwumi, Fenda A.; Montalvo, Edris J.

    2008-01-01

    The discipline of geography in the United States has not done a good job of attracting people, other than Asians, from underrepresented ethnic groups. This article examines undergraduate geography programs in the United States to understand better the status of their ethnic diversity, particularly regarding Hispanics and African Americans, and to…

  17. Doing Publishable Research with Undergraduate Students

    Science.gov (United States)

    Fenn, Aju J.; Johnson, Daniel K. N.; Smith, Mark Griffin; Stimpert, J. L.

    2010-01-01

    Many economics majors write a senior thesis. Although this experience can be the pinnacle of their education, publication is not the common standard for undergraduates. The authors describe four approaches that have allowed students to get their work published: (1) identify a topic, such as competitive balance in sports, and have students work on…

  18. Guaiacol Peroxidase Zymography for the Undergraduate Laboratory

    Science.gov (United States)

    Wilkesman, Jeff; Castro, Diana; Contreras, Lellys M.; Kurz, Liliana

    2014-01-01

    This laboratory exercise presents a novel way to introduce undergraduate students to the specific detection of enzymatic activity by electrophoresis. First, students prepare a crude peroxidase extract and then analyze the homogenate via electrophoresis. Zymography, that is, a SDS-PAGE method to detect enzyme activity, is used to specifically…

  19. Formative assessment promotes learning in undergraduate clinical ...

    African Journals Online (AJOL)

    Introduction. Clinical clerkships, typically situated in environments lacking educational structure, form the backbone of undergraduate medical training. The imperative to develop strategies that enhance learning in this context is apparent. This study explored the impact of longitudinal bedside formative assessment on ...

  20. Electronic learning readiness assessment of Nigerian Undergraduates

    African Journals Online (AJOL)

    learning. Two hypotheses were evolved to give direction to this study. The study was a pilot study and the University of Lagos was purposively selected. It was targeted at undergraduate students of the University of Lagos. A simple random ...

  1. Introductory Linear Regression Programs in Undergraduate Chemistry.

    Science.gov (United States)

    Gale, Robert J.

    1982-01-01

    Presented are simple programs in BASIC and FORTRAN to apply the method of least squares. They calculate gradients and intercepts and express errors as standard deviations. An introduction of undergraduate students to such programs in a chemistry class is reviewed, and issues instructors should be aware of are noted. (MP)

  2. Factors Influencing Substance Abuse among Undergraduate ...

    African Journals Online (AJOL)

    The study investigated the factors influencing substance abuse amongundergraduate students in Osun State; Nigeria. A sample of 1, 200undergraduate students were randomly selected from three tertiaryinstitution in Osun State. Factors Influencing Substance Abuse Questionnaire (FISA) was developed by the researcher ...

  3. Narrative Constructions of Whiteness among White Undergraduates

    Science.gov (United States)

    Foste, Zak

    2017-01-01

    This critical narrative inquiry was guided by two overarching research questions. First, this study examined how white undergraduates interpreted and gave meaning to their white racial identities. This line of inquiry sought to understand how participants made sense of their white racial selves, the self in relation to people of color, and the…

  4. Bioinformatics in Undergraduate Education: Practical Examples

    Science.gov (United States)

    Boyle, John A.

    2004-01-01

    Bioinformatics has emerged as an important research tool in recent years. The ability to mine large databases for relevant information has become increasingly central to many different aspects of biochemistry and molecular biology. It is important that undergraduates be introduced to the available information and methodologies. We present a…

  5. Engaging Undergraduates through Interdisciplinary Research in Nanotechnology

    Science.gov (United States)

    Goonewardene, Anura U.; Offutt, Christine; Whitling, Jacqueline; Woodhouse, Donald

    2012-01-01

    To recruit and retain more students in all science disciplines at our small (5,000 student) public university, we implemented an interdisciplinary strategy focusing on nanotechnology and enhanced undergraduate research. Inherently interdisciplinary, the novelty of nanotechnology and its growing career potential appeal to students. To engage…

  6. Navigating Disruptive Innovation in Undergraduate Business Education

    Science.gov (United States)

    Behara, Ravi S.; Davis, Mark M.

    2015-01-01

    The undergraduate business education landscape is dramatically changing and will continue to do so for the foreseeable future. Many of the changes are being driven by increasing costs, advances in technology, rapid globalization, and an increasingly diverse workforce and customer base, and are occurring simultaneously in both the business world…

  7. Action Learning in Undergraduate Engineering Thesis Supervision

    Science.gov (United States)

    Stappenbelt, Brad

    2017-01-01

    In the present action learning implementation, twelve action learning sets were conducted over eight years. The action learning sets consisted of students involved in undergraduate engineering research thesis work. The concurrent study accompanying this initiative investigated the influence of the action learning environment on student approaches…

  8. Comparative assessment of university chemistry undergraduate ...

    African Journals Online (AJOL)

    A comparative analysis of the structure of undergraduate chemistry curricula of universities in the southwest of Nigeria with a view to establishing the relative proportion of the different areas of chemistry each curriculum accommodates. It is a qualitative research, involving content analysis with a partial quantitative analysis ...

  9. Undergraduate Student Intentions for Postgraduate Study

    Science.gov (United States)

    Jepsen, Denise Mary; Neumann, Ruth

    2010-01-01

    Little is known of how and when undergraduate students decide to progress to postgraduate studies. This study examined the effect of a single semester on intentions to undertake postgraduate study. The study was conducted twice in two years using approximately 120 students enrolled in a third year "Behaviour in Organisations" unit at a…

  10. Exploring Signature Pedagogies in Undergraduate Leadership Education

    Science.gov (United States)

    Jenkins, Daniel M.

    2012-01-01

    This research explores the instructional strategies most frequently used by leadership educators who teach academic credit-bearing undergraduate leadership studies courses through a national survey and identifies signature pedagogies within the leadership discipline. Findings from this study suggest that class discussion--whether in the form of…

  11. Undergraduates' Text Messaging Language and Literacy Skills

    Science.gov (United States)

    Grace, Abbie; Kemp, Nenagh; Martin, Frances Heritage; Parrila, Rauno

    2014-01-01

    Research investigating whether people's literacy skill is being affected by the use of text messaging language has produced largely positive results for children, but mixed results for adults. We asked 150 undergraduate university students in Western Canada and 86 in South Eastern Australia to supply naturalistic text messages and to complete…

  12. Teaching Undergraduates to Think Like Scientists

    Science.gov (United States)

    Caccavo, Frank, Jr.

    2009-01-01

    The author discusses the importance of incorporating research into undergraduate curricula. Pedagogical approaches include faculty-directed research projects, off-campus internships, and research-oriented courses (R-courses). Examples of R-courses are reviewed, and an introductory microbiology course that teaches first year students "how to do…

  13. Death metaphors in Korean undergraduate nursing students.

    Science.gov (United States)

    Jo, Kae-Hwa; An, Gyeong-Ju

    2012-01-01

    The purpose of this study was to understand the meaning of death metaphors seen by 133 undergraduate nursing students through open questionnaires and collage artworks, using qualitative content analysis in Korea. The 4 themes emerged: "rest-physical," "fear-psychological," "separating-social," and "new life-spiritual."

  14. Advancing Research on Undergraduate Science Learning

    Science.gov (United States)

    Singer, Susan Rundell

    2013-01-01

    This special issue of "Journal of Research in Science Teaching" reflects conclusions and recommendations in the "Discipline-Based Education Research" (DBER) report and makes a substantial contribution to advancing the field. Research on undergraduate science learning is currently a loose affiliation of related fields. The…

  15. Evaluating and Selecting Sport Management Undergraduate Programs.

    Science.gov (United States)

    Cuneen, Jacquelyn; Sidwell, M. Joy

    1998-01-01

    States that the accelerated growth of sport management undergraduate programs that began in the 1980s has continued into the current decade. There are currently 180 sport management major programs in American colleges and universities. Describes the sports management approval process and suggests useful strategies to evaluate sport management…

  16. New Project System for Undergraduate Electronic Engineering

    Science.gov (United States)

    Chiu, Dirk M.; Chiu, Shen Y.

    2005-01-01

    A new approach to projects for undergraduate electronic engineering in an Australian university has been applied successfully for over 10 years. This approach has a number of projects running over three year period. Feedback from past graduates and their managers has confirmed that these projects train the students well, giving them the ability…

  17. Assessment Practices in Undergraduate Accounting Programs

    Science.gov (United States)

    Lusher, Anna L.

    2010-01-01

    This study examined accounting program assessment plans at 102 colleges and universities in the United States. The research focused on identifying assessment practices in undergraduate accounting programs by examining the skills and competencies assessed and determining the methods of assessment used. The study also investigated what course and/or…

  18. Cultures of Undergraduate Teaching at Research Universities.

    Science.gov (United States)

    Serow, Robert C.; Van Dyk, Pamela B.; McComb, Errin M.; Harrold, Adrian T.

    2002-01-01

    Data from five campuses revealed an explicitly oppositional culture among faculty committed to undergraduate teaching, which questions both the Scholarship of Teaching model and the ethos of competitive achievement. The views echo the longstanding populist tradition within U.S. higher education and represent a potential counterforce to the recent…

  19. Undergraduate medical research: the student perspective.

    LENUS (Irish Health Repository)

    Burgoyne, Louise N

    2010-01-01

    Research training is essential in a modern undergraduate medical curriculum. Our evaluation aimed to (a) gauge students\\' awareness of research activities, (b) compare students\\' perceptions of their transferable and research-specific skills competencies, (c) determine students\\' motivation for research and (d) obtain students\\' personal views on doing research.

  20. Determinants of Happiness in Undergraduate University Students

    Science.gov (United States)

    Flynn, Deborah M.; MacLeod, Stephanie

    2015-01-01

    This study explored the relationship between happiness, and six other life domains: Academic Success, Financial Security, Familial Support, Living Environment, Self-Image and Social Relations. Participants were one hundred and ninety- two students from a small undergraduate university. The purpose of the study was to determine which life domain…