Science.gov

Sample records for activities teaching tips

  1. Teaching Tips.

    ERIC Educational Resources Information Center

    Kanervo, Ellen; And Others

    1980-01-01

    Contains teaching ideas from six journalism teachers on the following topics: teaching electronic editing, using minicomputers in an advertising media course, five ways to make grading stories easier, the point and code system of grading, student coverage of state government, and the "guided design" teaching technique. (RL)

  2. Teaching Tips.

    ERIC Educational Resources Information Center

    Queen, Judy; And Others

    1995-01-01

    Includes "How to Talk So Students Will Listen...And Listen So Students Will Talk" (Queen); "Power Teaching" (Adams); "Give Students a Job-Seeking Edge" (Anderton-Lewis, Cooley); "Read All about It--In a Newsletter" (Kisner); and "An Air of Expectation" (Howard). (JOW)

  3. Teaching Tips.

    ERIC Educational Resources Information Center

    Journalism Educator, 1985

    1985-01-01

    Presents a variety of journalism classroom techniques, including an editing scavenger hunt, a discovery method for compiling news sources, intense instruction in news technology, criteria for evaluating ad copy, a course combining print and broadcast journalism, use of the Teletext, and teaching ad forms for the new media. (HTH)

  4. Teaching Tips: Improving College Instruction.

    ERIC Educational Resources Information Center

    McGlynn, Angela Provitera

    Designed to help teachers improve instruction, this handbook provides tips gathered from focus groups of teachers and students at New Jersey's Mercer County Community College, as well as from other teaching resources. The first part focuses on the contribution of faculty-student interaction to student success, listing 21 suggestions for building…

  5. Teaching Tip: Using Activity Diagrams to Model Systems Analysis Techniques: Teaching What We Preach

    ERIC Educational Resources Information Center

    Lending, Diane; May, Jeffrey

    2013-01-01

    Activity diagrams are used in Systems Analysis and Design classes as a visual tool to model the business processes of "as-is" and "to-be" systems. This paper presents the idea of using these same activity diagrams in the classroom to model the actual processes (practices and techniques) of Systems Analysis and Design. This tip…

  6. Timely Teaching Tips: Financial Planning.

    ERIC Educational Resources Information Center

    Keast, Anne C.; Leth, Gwendolyn I.

    This handbook contains teaching ideas for personal and family financial planning courses in senior high schools. Each concept includes the type of activity, an overview of the activity in the form of a generalization, student performance indicators, a plan for implementation, evaluation criteria and materials needed to conduct the activity. Many…

  7. Twelve tips for peer observation of teaching.

    PubMed

    Siddiqui, Zarrin Seema; Jonas-Dwyer, Diana; Carr, Sandra E

    2007-05-01

    This paper outlines twelve tips for undertaking peer observation of teaching in medical education, using the peer review model and the experiences of the authors. An accurate understanding of teaching effectiveness is required by individuals, medical schools, and universities to evaluate the learning environment and to substantiate academic and institutional performance. Peer Observation of Teaching is one tool that provides rich, qualitative evidence for teachers, quite different from closed-ended student evaluations. When Peer Observation of Teaching is incorporated into university practice and culture, and is conducted in a mutually respectful and supportive way, it has the potential to facilitate reflective change and growth for teachers.

  8. Tips on Teaching Report Writing.

    ERIC Educational Resources Information Center

    Hudgins, R. R.

    1987-01-01

    Discusses some of the problems associated with teaching report writing to undergraduate chemical engineering students. Introduces a simplified cribsheet for writing formal reports and describes the Fog Index, which can be used to determine the sophistication of the writing. Includes a checklist for grading report writing. (TW)

  9. Teaching Tip: The Flipped Classroom

    ERIC Educational Resources Information Center

    Mok, Heng Ngee

    2014-01-01

    The flipped classroom has been gaining popularity in recent years. In theory, flipping the classroom appears sound: passive learning activities such as unidirectional lectures are pushed to outside class hours in the form of videos, and precious class time is spent on active learning activities. Yet the courses for information systems (IS)…

  10. Writing IS Teaching Tips: Guidelines for "JISE" Submission

    ERIC Educational Resources Information Center

    Lending, Diane; Vician, Chelley

    2012-01-01

    "JISE" has a lengthy history of inviting the submission of Teaching Tips for publication consideration in the journal. Past submission guidance for Teaching Tips has consisted of asking contributors to document the teaching experience and indicate what has worked, and not worked, in its execution within a journal page constraint of one to five…

  11. ABC's for Tutors: 26 Teaching Tips.

    ERIC Educational Resources Information Center

    Brod, Shirley

    Twenty-six specific classroom activities or procedures are suggested for teaching English as a Second Language (ESL) to individual adults or small groups. These activities include notes on use of visual aids, games and other group activities, out-of-class activities, oral and written language exercises, integration of language skills (listening,…

  12. Ten Timeless Tips for Keeping on Top of Teaching Technology

    ERIC Educational Resources Information Center

    Poling, Devereaux A.; LoSchiavo, Frank M.

    2014-01-01

    We provide tips for helping psychology faculty effectively seek, select, and place new technology into pedagogical practice. We also provide tips to help psychology departments position themselves for a future that includes teaching technologies that have not yet been created. Instead of discussing today's top innovations in teaching (which…

  13. Continuing education module top 10: tips on teaching lamaze classes.

    PubMed

    Lothian, Judith A; Hotelling, Barbara A

    2012-01-01

    Lamaze classes should help women think differently about birth, dispel myths, and ultimately make informed decisions that are right for them. In the current maternity care environment, this is a monumental task. In this column, the authors discuss 10 teaching tips that serve as a guide for teaching childbirth classes and ultimately facilitate learning.

  14. Smart helicopter rotor with active blade tips

    NASA Astrophysics Data System (ADS)

    Bernhard, Andreas Paul Friedrich

    2000-10-01

    The smart active blade tip (SABT) rotor is an on-blade rotor vibration reduction system, incorporating active blade tips that can be independently pitched with respect to the main blade. The active blade tip rotor development included an experimental test program culminating in a Mach scale hover test, and a parallel development of a coupled, elastic actuator and rotor blade analysis for preliminary design studies and hover performance prediction. The experimental testing focussed on a small scale rotor on a bearingless Bell-412 hub. The fabricated Mach-scale active-tip rotor has a diameter of 1.524 m, a blade chord of 76.2 mm and incorporated a 10% span active tip. The nominal operating speed is 2000 rpm, giving a tip Mach number of 0.47. The blade tips are driven by a novel piezo-induced bending-torsion coupled actuator beam, located spanwise in the hollow mid-cell of the main rotor blade. In hover at 2000 rpm, at 2 deg collective, and for an actuation of 125 Vrms, the measured blade tip deflection at the first four rotor harmonics is between +/-1.7 and +/-2.8 deg, increasing to +/-5.3 deg at 5/rev with resonant amplification. The corresponding oscillatory amplitude of the rotor thrust coefficient is between 0.7 · 10-3 and 1.3 · 10-1 at the first four rotor harmonics, increasing to 2.1 · 10-3 at 5/rev. In general, the experimental blade tip frequency response and corresponding rotor thrust response are well captured by the analysis. The flexbeam root flap bending moment is predicted in trend, but is significantly over-estimated. The blade tips did not deflect as expected at high collective settings, because of the blade tip shaft locking up in the bearing. This is caused by the high flap bending moment on the blade tip shaft. Redesign of the blade tip shaft assembly and bearing support is identified as the primary design improvement for future research. The active blade tip rotor was also used as a testbed for the evaluation of an adaptive neural-network based

  15. Tips for Teaching Math to Elementary Students

    ERIC Educational Resources Information Center

    Scarpello, Gary

    2010-01-01

    Since most elementary school teachers do not hold a degree in mathematics, teaching math may be a daunting task for some. Following are a few techniques to help make teaching and learning math easier and less stressful. First, know that math is a difficult subject to teach--even for math teachers. The subject matter itself is challenging. Second,…

  16. Educating generation X and generation Y: teaching tips for librarians.

    PubMed

    Kipnis, Daniel G; Childs, Gary M

    2004-01-01

    This article provides a list of helpful teaching tips for instructional librarians who need to meet the changing generational needs of their patrons. Specific generational qualities and attitudes of Generation X and Generation Y are discussed along with educational techniques and software recommendations. These tips are based on the authors' experiences at Drexel University's Hahnemann Library and Thomas Jefferson University's Scott Memorial Library, both of which are academic health sciences libraries. PMID:15778180

  17. Educating generation X and generation Y: teaching tips for librarians.

    PubMed

    Kipnis, Daniel G; Childs, Gary M

    2004-01-01

    This article provides a list of helpful teaching tips for instructional librarians who need to meet the changing generational needs of their patrons. Specific generational qualities and attitudes of Generation X and Generation Y are discussed along with educational techniques and software recommendations. These tips are based on the authors' experiences at Drexel University's Hahnemann Library and Thomas Jefferson University's Scott Memorial Library, both of which are academic health sciences libraries.

  18. Twelve tips to promote excellence in medical teaching.

    PubMed

    Ramani, Subha

    2006-02-01

    For medical teachers around the world, teaching duties have expanded beyond the classroom and include teaching small groups, assessment, providing instructional materials beyond the syllabus, problem-based learning, learner-centred teaching, clinical teaching on-the-fly--and the list goes on. Faculty development is essential to train medical faculty in essential educational theory and specific teaching skills as well as to encourage a flexible and learner-centred approach to teaching. Finally, self-reflection and critique of teaching techniques are vital to propel medical schools towards promoting and aiming for uncompromising excellence in medical education. The twelve tips described in this article relating to educating teachers, evaluating teaching and eradicating institutional apathy are simple measures that educational leaders can apply to promote excellence in teaching at their parent institutions. The tips introduce a multi-dimensional approach to improving the overall quality of medical education consisting of measures aimed at individual teachers and those aimed at overhauling the teaching climate at medical institutions.

  19. A Dozen Teaching Tips for Diverse Classrooms

    ERIC Educational Resources Information Center

    Fogg, Piper

    2007-01-01

    For the majority of community-college professors, teaching is the most important part of their jobs, and it is not easy. Community-college students are a diverse bunch, but often face a particular set of challenges. Many entering students are not prepared for college-level work. While some students plan to transfer to competitive four-year…

  20. Environmental Education Tips: Weather Activities.

    ERIC Educational Resources Information Center

    Brainard, Audrey H.

    1989-01-01

    Provides weather activities including questions, on weather, heating the earth's surface, air, tools of the meteorologist, clouds, humidity, wind, and evaporation. Shows an example of a weather chart activity. (RT)

  1. Teaching tip: making the most of hospital rounds.

    PubMed

    Lane, India F; Cornell, Karen K

    2013-01-01

    Effective clinical teaching rounds are facilitated by adequate and specific orientation, a positive climate, interpersonal rapport, and dynamic discussions. Using fewer and better-quality questions also promotes effective learning and saves valuable time, while providing multiple opportunities for student engagement and for assessing student performance. This paper provides a brief review of these key points and offers tips and examples for clinicians or other team members leading conference room rounds sessions in veterinary settings. PMID:23697541

  2. Encoding Active Device Elements at Nanowire Tips.

    PubMed

    No, You-Shin; Gao, Ruixuan; Mankin, Max N; Day, Robert W; Park, Hong-Gyu; Lieber, Charles M

    2016-07-13

    Semiconductor nanowires and other one-dimensional materials are attractive for highly sensitive and spatially confined electrical and optical signal detection in biological and physical systems, although it has been difficult to localize active electronic or optoelectronic device function at one end of such one-dimensional structures. Here we report a new nanowire structure in which the material and dopant are modulated specifically at only one end of nanowires to encode an active two-terminal device element. We present a general bottom-up synthetic scheme for these tip-modulated nanowires and illustrate this with the synthesis of nanoscale p-n junctions. Electron microscopy imaging verifies the designed p-Si nanowire core with SiO2 insulating inner shell and n-Si outer shell with clean p-Si/n-Si tip junction. Electrical transport measurements with independent contacts to the p-Si core and n-Si shell exhibited a current rectification behavior through the tip and no detectable current through the SiO2 shell. Electrical measurements also exhibited an n-type response in conductance versus water-gate voltage with pulsed gate experiments yielding a temporal resolution of at least 0.1 ms and ∼90% device sensitivity localized to within 0.5 μm from the nanowire p-n tip. In addition, photocurrent experiments showed an open-circuit voltage of 0.75 V at illumination power of ∼28.1 μW, exhibited linear dependence of photocurrent with respect to incident illumination power with an estimated responsivity up to ∼0.22 A/W, and revealed localized photocurrent generation at the nanowire tip. The tip-modulated concept was further extended to a top-down/bottom-up hybrid approach that enabled large-scale production of vertical tip-modulated nanowires with a final synthetic yield of >75% with >4300 nanowires. Vertical tip-modulated nanowires were fabricated into >50 individually addressable nanowire device arrays showing diode-like current-voltage characteristics. These tip

  3. Teaching Poetry Tips; Teaching English without Desks; A Brief History of Time and the "Red Clock."

    ERIC Educational Resources Information Center

    Reid, Gem; And Others

    1993-01-01

    This issue of "Insights into Open Education" presents three short articles dealing with teaching poetry, English instruction, and the concept of time. The first article, "Teaching Poetry Tips" (Gem Reid), discusses the author's experiences conducting a week-long poetry workshop for a class of 30 second graders. The second article, "Teaching…

  4. TIP-1 Has PDZ Scaffold Antagonist Activity

    PubMed Central

    Alewine, Christine; Olsen, Olav; Wade, James B.

    2006-01-01

    PDZ proteins usually contain multiple protein–protein interaction domains and act as molecular scaffolds that are important for the generation and maintenance of cell polarity and cell signaling. Here, we identify and characterize TIP-1 as an atypical PDZ protein that is composed almost entirely of a single PDZ domain and functions as a negative regulator of PDZ-based scaffolding. We found that TIP-1 competes with the basolateral membrane mLin-7/CASK complex for interaction with the potassium channel Kir 2.3 in model renal epithelia. Consequently, polarized plasma membrane expression of Kir 2.3 is disrupted resulting in pronounced endosomal targeting of the channel, similar to the phenotype observed for mutant Kir 2.3 channels lacking the PDZ-binding motif. TIP-1 is ubiquitously expressed, raising the possibility that TIP-1 may play a similar role in regulating the expression of other membrane proteins containing a type I PDZ ligand. PMID:16855024

  5. Chemical stability of plasmon-active silver tips for tip-enhanced Raman spectroscopy

    NASA Astrophysics Data System (ADS)

    Kalbacova, Jana; Rodriguez, Raul D.; Desale, Vivek; Schneider, Maximilian; Amin, Ihsan; Jordan, Rainer; Zahn, Dietrich R. T.

    2015-01-01

    Silver nanostructures are used in tip- and surface-enhanced Raman spectroscopy due to their high electric field enhancement over almost the entire visible spectral range. However, the low chemical stability of silver, compared to other noble metals, promotes silver sulfide and sulfate formation which decreases its plasmonic activity. This is why silver tips are usually prepared on the same day of the experiments or are disregarded in favour of gold that is chemically more stable. Since silver degradation cannot be avoided, we hypothesized that a protection layer may be able to minimize or control degradation. In this contribution, we report the successful preparation of 4-biphenylthiol and 4'-nitro-4-biphenylthiol self-assembled monolayers on silver tips in order to protect them against tarnishing and to investigate the effect on the life-time of the plasmonic activity. The electrochemically etched wire surface was probed via Raman spectroscopy and scanning electron microscopy. The best long term stability and resistance against corrosion was shown by a monolayer of 4-biphenylthiol formed from dimethylformamide which did not display any degradation of the metallic tip during the observed period. Here, we demonstrate an easy and straightforward approach towards increasing the chemical stability of silver TERS-active probes.

  6. Ten tips for teaching in the theatre tearoom: shifting the focus from teaching to learning.

    PubMed

    Jeffree, Rosalind L; Clarke, Rufus M

    2010-11-01

    Educational encounters between surgeons and trainees are often brief, spontaneous, opportunistic events. In spite of their vast teaching experience, very few surgeons have had educational training that enables them to optimise such opportunities. This article reviews the literature on medical education and adult learning, and makes practical suggestions about how surgeons can best help trainees to learn. The most important ideas, such as creating a supportive learning environment, actively engaging the learner, and providing constructive feedback, are relevant to any teaching and learning, but are particularly applicable to informal, on-the-job educational encounters such as teaching in the theatre tearoom. PMID:20652699

  7. Activities in Teaching Weather

    ERIC Educational Resources Information Center

    Tonn, Martin

    1977-01-01

    Presented is a unit composed of activities for teaching weather. Topics include cloud types and formation, simple weather instruments, and the weather station. Illustrations include a weather chart and instruments. A bibliography is given. (MA)

  8. William James's "Talks to Teachers" (1899) and McKeachie's "Teaching Tips" (1999)

    ERIC Educational Resources Information Center

    McKeachie, Wilbert J.

    2003-01-01

    What has changed and what has stayed the same in the years since the first publication of James's "Talks to Teachers on Psychology: And to Students on some of Life's Ideals" (1899) and the 10 editions of McKeachie's "Teaching Tips"? Although research and theory have given us better understanding of learning, memory, cognition, and motivation, much…

  9. Teaching Introductory Psychology: Tips from "ToP"

    ERIC Educational Resources Information Center

    Griggs, Richard A., Ed.; Jackson, Sherri L., Ed.

    2011-01-01

    This book follows in the footsteps of the first three volumes in the "Handbook for Teaching Introductory Psychology" series. In the prefaces to these volumes, the various editors all stressed two major points relevant to the development of this series. These comments also apply to this book. First, introductory psychology is one of the most…

  10. Toward a Fast-Response Active Turbine Tip Clearance Control

    NASA Technical Reports Server (NTRS)

    Melcher, Kevin J.; Kypuros, Javier A.

    2003-01-01

    This paper describes active tip clearance control research being conducted by NASA to improve turbine engine systems. The target application for this effort is commercial aircraft engines. However, technologies developed for clearance control can benefit a broad spectrum of current and future turbomachinery. The first portion of the paper addresses the research from a programmatic viewpoint. Recent studies that provide motivation for the work, identification of key technologies, and NASA's plan for addressing deficiencies in the technologies are discussed. The later portion of the paper drills down into one of the key technologies by presenting equations and results for a preliminary dynamic model of the tip clearance phenomena.

  11. Family Science Night: Fun Tips, Activities, and Ideas

    ERIC Educational Resources Information Center

    Connell, Shelley S.

    2013-01-01

    At last! A practical, readable guide for teachers, school leaders, and parent/teacher associations that shows how to plan fun, hands-on science nights! Get easy-to-implement, content-rich tips and ideas that will cultivate positive attitudes toward science! Learn how to involve and actively engage families in their children's science education.…

  12. Twelve Tips for teaching medical professionalism at all levels of medical education.

    PubMed

    Al-Eraky, Mohamed Mostafa

    2015-01-01

    Review of studies published in medical education journals over the last decade reveals that teaching medical professionalism is essential, yet challenging. According to a recent Best Evidence in Medical Education (BEME) guide, there is no consensus on a theoretical or practical model to integrate the teaching of professionalism into medical education. The aim of this article is to outline a practical manual for teaching professionalism at all levels of medical education. Drawing from research literature and author's experience, Twelve Tips are listed and organised in four clusters with relevance to (1) the context, (2) the teachers, (3) the curriculum, and (4) the networking. With a better understanding of the guiding educational principles for teaching medical professionalism, medical educators will be able to teach one of the most challenging constructs in medical education.

  13. Active Piezoelectric Structures for Tip Clearance Management Assessed

    NASA Technical Reports Server (NTRS)

    1995-01-01

    Managing blade tip clearance in turbomachinery stages is critical to developing advanced subsonic propulsion systems. Active casing structures with embedded piezoelectric actuators appear to be a promising solution. They can control static and dynamic tip clearance, compensate for uneven deflections, and accomplish electromechanical coupling at the material level. In addition, they have a compact design. To assess the feasibility of this concept and assist the development of these novel structures, the NASA Lewis Research Center developed in-house computational capabilities for composite structures with piezoelectric actuators and sensors, and subsequently used them to simulate candidate active casing structures. The simulations indicated the potential of active casings to modify the blade tip clearance enough to improve stage efficiency. They also provided valuable design information, such as preliminary actuator configurations (number and location) and the corresponding voltage patterns required to compensate for uneven casing deformations. An active ovalization of a casing with four discrete piezoceramic actuators attached on the outer surface is shown. The center figure shows the predicted radial displacements along the hoop direction that are induced when electrostatic voltage is applied at the piezoceramic actuators. This work, which has demonstrated the capabilities of in-house computational models to analyze and design active casing structures, is expected to contribute toward the development of advanced subsonic engines.

  14. GGD NSU: Tips to Teach Students as Young Scientists

    NASA Astrophysics Data System (ADS)

    Rakhmenkulova, I. F.; Zhitova, L.

    2013-12-01

    Novosibirsk State University (NSU) is different from other universities in Russia. The campus is located in Academgorodok, a unique place where more than 30 scientific institutes and Academpark (Technopark) are located. The students are involved in scientific research from the third year of their study (some try to work part-time in scientific institutions even from their first year). All the university professors are highly-qualified scientists working full-time in scientific institutions. Geology and Geophysics Department (GGD) of NSU is currently reforming the education system and policy. The reform involves the following steps: 1. New scientific programs and courses on modern science have been introduced; the priority should be given to courses in English, as the international language. 2. A special annual conference for students and young scientists was organized in August 2013 in Shira (a place where GGD students have their field trips). 3. International scientists are invited to give seminars and teach on a regular basis. 4. International students are welcomed to study at GGD NSU. 5. GGD stuff is creating a new scientific laboratory within the university. All the above-mentioned steps should ';launch' GGD NSU into a new ';orbit': improve the study process and help the university to be integrated into the world's community.

  15. Current activated tip sintering of Ni-Ti intermetallics

    NASA Astrophysics Data System (ADS)

    Sharma, Nitin

    This thesis investigated the current activated tip-sintering of reactive mixtures of nickel and titanium to form Ni-Ti intermetallics. The effect of elemental powder composition, heating profile and micro-jet inert gas pressures on the developed macro- and microstructure was investigated. The heating profile brought upon by selective electric current application was found to have a significant effect on whether the reaction is a volumetric combustion or a self-propagating high temperature one. The best results in terms of homogeneity and Ni-Ti intermetallics yield, were obtained for an inert gas pressure of 4 psi under for the nickel rich composition. In addition, surprising results at the higher inert gas pressures show the formation of hollow products, which can give rise future exploration of this technique for combustion synthesizing hollow products of different shapes.

  16. The Effect of Tip Geometry on Active-Twist Rotor Response

    NASA Technical Reports Server (NTRS)

    Wilbur, Matthew L.; Sekula, Martin K.

    2005-01-01

    A parametric examination of the effect of tip geometry on active-twist rotor system response is conducted. Tip geometry parameters considered include sweep, taper, anhedral, nonlinear twist, and the associated radial initiation location for each of these variables. A detailed study of the individual effect of each parameter on active-twist response is presented, and an assessment offered of the effect of combining multiple tip shape parameters. Tip sweep is shown to have the greatest affect on active-twist response, significantly decreasing the response available. Tip taper and anhedral are shown to increase moderately the active-twist response, while nonlinear twist is shown to have a minimal effect. A candidate tip shape that provides active-twist response equivalent to or greater than a rectangular planform blade is presented.

  17. Activities for Teaching Solar Energy.

    ERIC Educational Resources Information Center

    Mason, Jack Lee; Cantrell, Joseph S.

    1980-01-01

    Plans and activities are suggested for teaching elementary children about solar energy. Directions are included for constructing a flat plate collector and a solar oven. Activities for a solar field day are given. (SA)

  18. Teaching Tip: Developing an Intercollegiate Twitter Forum to Improve Student Exam Study and Digital Professionalism.

    PubMed

    Whiting, Martin; Kinnison, Tierney; Mossop, Liz

    2016-01-01

    #VetFinals has been developed as a novel online Twitter teaching event designed to support intercollegiate veterinary teaching using social media. Previous studies in other fields have suggested that Twitter use within universities may have benefits for undergraduate education. This "teaching tip" paper describes a project using Twitter to host online exam study sessions. The project has been a highly successful collaborative effort between the Royal Veterinary College and Nottingham Veterinary School in the UK. Over 4 years, the #VetFinals project has developed into a long-term, self-sustaining enterprise. This initiative provides a semi-structured means for student exam preparation with direct real-time input from a faculty member. It also creates a network of peers both horizontally across institutions and vertically throughout year groups. Based on similar initiatives in other disciplines, an anticipated outcome of this project was to contribute to student online professionalism. This could help address the veterinary community's recently highlighted problems with professional conduct and appropriate use of social media. Analysis of the success of this endeavor will be available in a future publication.

  19. Tuberoinfundibular peptide of 39 residues (TIP39): molecular structure and activity for parathyroid hormone 2 receptor.

    PubMed

    Della Penna, K; Kinose, F; Sun, H; Koblan, K S; Wang, H

    2003-01-01

    The neuropeptide TIP39 was recently purified from bovine hypothalamus based on the ability of the peptide to activate the parathyroid hormone 2 receptor (PTH2R) ( Nat. Neurosci. 2 (1999) 941). PTH2R is abundantly expressed in the nervous system, and its expression pattern suggests that it may play a role in modulation of pituitary function and in nociception. Towards understanding the physiological role of TIP39 and PTH2R, we cloned human, mouse and rat TIP39 gene. Our results revealed that: (1) the mature peptide is processed from a precursor; (2) TIP39 peptide is highly conserved among species; and (3) TIP39 from all species activates adenylyl cyclase and elevates intracellular calcium levels through PTH2R. We also defined and compared the structure-activity relationship of TIP39 on both activation of adenylyl cyclase and calcium mobilization pathways through PTH2R, finding common and differential determinants of TIP39 that are required for these pathways. Furthermore, we observed that TIP39 elevates intracellular calcium levels in primary dorsal root ganglion neurons whereas the peptide inactive on PTH2R do not, suggesting that TIP39 may activate these neurons important for nociception in vivo through PTH2R-dependent mechanisms.

  20. Phosphorylation regulates the water channel activity of the seed-specific aquaporin alpha-TIP.

    PubMed Central

    Maurel, C; Kado, R T; Guern, J; Chrispeels, M J

    1995-01-01

    The vacuolar membrane protein alpha-TIP is a seed-specific protein of the Major Intrinsic Protein family. Expression of alpha-TIP in Xenopus oocytes conferred a 4- to 8-fold increase in the osmotic water permeability (Pf) of the oocyte plasma membrane, showing that alpha-TIP forms water channels and is thus a new aquaporin. alpha-TIP has three putative phosphorylation sites on the cytoplasmic side of the membrane (Ser7, Ser23 and Ser99), one of which (Ser7) has been shown to be phosphorylated. We present several lines of evidence that the activity of this aquaporin is regulated by phosphorylation. First, mutation of the putative phosphorylation sites in alpha-TIP (Ser7Ala, Ser23Ala and Ser99Ala) reduced the apparent water transport activity of alpha-TIP in oocytes, suggesting that phosphorylation of alpha-TIP occurs in the oocytes and participates in the control of water channel activity. Second, exposure of oocytes to the cAMP agonists 8-bromoadenosine 3',5'-cyclic monophosphate, forskolin and 3-isobutyl-1-methylxanthine, which stimulate endogenous protein kinase A (PKA), increased the water transport activity of alpha-TIP by 80-100% after 60 min. That the protein can be phosphorylated by PKA was demonstrated by phosphorylating alpha-TIP in isolated oocyte membranes with the bovine PKA catalytic subunit. Third, the integrity of the three sites at positions 7, 23 and 99 was necessary for the cAMP-dependent increase in the Pf of oocytes expressing alpha-TIP, as well as for in vitro phosphorylation of alpha-TIP. These findings demonstrate that the alpha-TIP water channel can be modulated via phosphorylation of Ser7, Ser23 and Ser99.(ABSTRACT TRUNCATED AT 250 WORDS) Images PMID:7542585

  1. Prom Health and Safety Tips

    MedlinePlus

    ... Healthy Occasions Autumn Tips Camping Tips Family Reunions Gardening Tips Halloween Tips Healthy Halloween Prom Tips Spring ... ways to stay active, such as walking, dancing, gardening, swimming, and more. Be active for 60 minutes ...

  2. Water-Related Teaching Activities.

    ERIC Educational Resources Information Center

    Coon, Herbert L.; Price, Charles L.

    This publication is designed to provide interested teachers with teaching activities for all grade levels and subject areas that can be used to help students learn about water resources. For each activity, the purpose, level, subject, and concept are given. Activities are organized by grade level. Most of these water related learning activities…

  3. Simply the best: teaching gerontological nursing students to teach evidence-based practice. Creating tip sheets can help achieve the goal of implementing EBP in clinical facilities.

    PubMed

    Schoenfelder, Deborah Perry

    2007-08-01

    This article describes a teaching strategy used in an undergraduate gerontological nursing clinical course to familiarize students with evidence-based practice. Students are required to read and summarize an assigned evidence-based practice guideline published by The University of Iowa Gerontological Nursing Interventions Research Center. They then develop a "tip sheet," based on the assigned guideline, to disseminate to health care staff at their practicum sites, which is either a long-term care facility or a hospital-based skilled nursing facility. Nursing students' reactions to the assignment and nursing staff's responses to the tip sheets are discussed.

  4. Function of the active site lysine autoacetylation in Tip60 catalysis.

    PubMed

    Yang, Chao; Wu, Jiang; Zheng, Y George

    2012-01-01

    The 60-kDa HIV-Tat interactive protein (Tip60) is a key member of the MYST family of histone acetyltransferases (HATs) that plays critical roles in multiple cellular processes. We report here that Tip60 undergoes autoacetylation at several lysine residues, including a key lysine residue (i.e. Lys-327) in the active site of the MYST domain. The mutation of K327 to arginine led to loss of both the autoacetylation activity and the cognate HAT activity. Interestingly, deacetylated Tip60 still kept a substantial degree of HAT activity. We also investigated the effect of cysteine 369 and glutamate 403 in Tip60 autoacetylation in order to understand the molecular pathway of the autoacetylation at K327. Together, we conclude that the acetylation of K327 which is located in the active site of Tip60 regulates but is not obligatory for the catalytic activity of Tip60. Since acetylation at this key residue appears to be evolutionarily conserved amongst all MYST proteins, our findings provide an interesting insight into the regulatory mechanism of MYST activities. PMID:22470428

  5. Compressive strength of dental composites photo-activated with different light tips

    NASA Astrophysics Data System (ADS)

    Galvão, M. R.; Caldas, S. G. F. R.; Calabrez-Filho, S.; Campos, E. A.; Bagnato, V. S.; Rastelli, A. N. S.; Andrade, M. F.

    2013-04-01

    The aim of this study was to evaluate the compressive strength of microhybrid (Filtek™ Z250) and nanofilled (Filtek™ Supreme XT) composite resins photo-activated with two different light guide tips, fiber optic and polymer, coupled with one LED. The power density was 653 mW cm-2 when using the fiber optic light tip and 596 mW cm-2 with the polymer. After storage in distilled water at 37 ± 2 °C for seven days, the samples were subjected to mechanical testing of compressive strength in an EMIC universal mechanical testing machine with a load cell of 5 kN and speed of 0.5 mm min-1. The statistical analysis was performed using ANOVA with a confidence interval of 95% and Tamhane’s test. The results showed that the mean values of compressive strength were not influenced by the different light tips (p > 0.05). However, a statistical difference was observed (p < 0.001) between the microhybrid composite resin photo-activated with the fiber optic light tip and the nanofilled composite resin. Based on these results, it can be concluded that microhybrid composite resin photo-activated with the fiber optic light tip showed better results than nanofilled, regardless of the tip used, and the type of the light tip did not influence the compressive strength of either composite. Thus, the presented results suggest that both the fiber optic and polymer light guide tips provide adequate compressive strength to be used to make restorations. However, the fiber optic light tip associated with microhybrid composite resin may be an interesting option for restorations mainly in posterior teeth.

  6. Recognition of enhancer element-specific histone methylation by TIP60 in transcriptional activation.

    PubMed

    Jeong, Kwang Won; Kim, Kyunghwan; Situ, Alan Jialun; Ulmer, Tobias S; An, Woojin; Stallcup, Michael R

    2011-12-01

    Many co-regulator proteins are recruited by DNA-bound transcription factors to remodel chromatin and activate transcription. However, mechanisms for coordinating actions of multiple co-regulator proteins are poorly understood. We demonstrate that multiple protein-protein interactions by the protein acetyltransferase TIP60 are required for estrogen-induced transcription of a subset of estrogen receptor alpha (ERα) target genes in human cells. Estrogen-induced recruitment of TIP60 requires direct binding of TIP60 to ERα and the action of chromatin-remodeling ATPase BRG1, leading to increased recruitment of histone methyltransferase MLL1 and increased monomethylation of histone H3 at Lys4. TIP60 recruitment also requires preferential binding of the TIP60 chromodomain to histone H3 containing monomethylated Lys4, which marks active and poised enhancer elements. After recruitment, TIP60 increases acetylation of histone H2A at Lys5. Thus, complex cooperation of TIP60 with ERα and other chromatin-remodeling enzymes is required for estrogen-induced transcription. PMID:22081016

  7. Phosphorylation of Tip60 Tyrosine 327 by Abl Kinase Inhibits HAT Activity through Association with FE65

    PubMed Central

    Shin, Sung Hwa; Kang, Sang Sun

    2013-01-01

    The transfer of acetyl groups from acetyl coenzyme A to the ε amino group of internal lysine residues is catalyzed by Tip60, which is in the MYST family of nuclear histone acetyltransferases (HATs). The tyrosine phosphorylation of Tip60 seems to be a unique modification. We present evidence that Tip60 is modified on tyrosine 327 by Abl kinase. We show that this causes functional changes in HAT activity and the subcellular localization of TIP60, which forms a complex with Abl kinase. The Tip60 mutation Y327F abolished tyrosine phosphorylation, reduced the inhibition of Tip60 HAT activity, and caused G0-G1 arrest and association with FE65. Thus, our findings for the first time suggested a novel regulation mechanism of Tip60. Regulation was through phosphorylation of tyrosine 327 by Abl tyrosine kinase and depended on environmental conditions, suggesting that the tyrosine residue of Tip60 is important for the activation process. PMID:24044023

  8. NRP1 Regulates CDC42 Activation to Promote Filopodia Formation in Endothelial Tip Cells.

    PubMed

    Fantin, Alessandro; Lampropoulou, Anastasia; Gestri, Gaia; Raimondi, Claudio; Senatore, Valentina; Zachary, Ian; Ruhrberg, Christiana

    2015-06-16

    Sprouting blood vessels are led by filopodia-studded endothelial tip cells that respond to angiogenic signals. Mosaic lineage tracing previously revealed that NRP1 is essential for tip cell function, although its mechanistic role in tip cells remains poorly defined. Here, we show that NRP1 is dispensable for genetic tip cell identity. Instead, we find that NRP1 is essential to form the filopodial bursts that distinguish tip cells morphologically from neighboring stalk cells, because it enables the extracellular matrix (ECM)-induced activation of CDC42, a key regulator of filopodia formation. Accordingly, NRP1 knockdown and pharmacological CDC42 inhibition similarly impaired filopodia formation in vitro and in developing zebrafish in vivo. During mouse retinal angiogenesis, CDC42 inhibition impaired tip cell and vascular network formation, causing defects that resembled those due to loss of ECM-induced, but not VEGF-induced, NRP1 signaling. We conclude that NRP1 enables ECM-induced filopodia formation for tip cell function during sprouting angiogenesis. PMID:26051942

  9. Test Rig for Active Turbine Blade Tip Clearance Control Concepts: An Update

    NASA Technical Reports Server (NTRS)

    Taylor, Shawn; Steinetz, Bruce; Oswald, Jay; DeCastro, Jonathan; Melcher, Kevin

    2006-01-01

    The objective is to develop and demonstrate a fast-acting active clearance control system to improve turbine engine performance, reduce emissions, and increase service life. System studies have shown the benefits of reducing blade tip clearances in modern turbine engines. Minimizing blade tip clearances throughout the engine will contribute materially to meeting NASA's Ultra-Efficient Engine Technology (UEET) turbine engine project goals. NASA GRC is examining two candidate approaches including rub-avoidance and regeneration which are explained in subsequent slides.

  10. Soybean TIP Gene Family Analysis and Characterization of GmTIP1;5 and GmTIP2;5 Water Transport Activity

    PubMed Central

    Song, Li; Nguyen, Na; Deshmukh, Rupesh K.; Patil, Gunvant B.; Prince, Silvas J.; Valliyodan, Babu; Mutava, Raymond; Pike, Sharon M.; Gassmann, Walter; Nguyen, Henry T.

    2016-01-01

    Soybean, one of the most important crops worldwide, is severely affected by abiotic stress. Drought and flooding are the major abiotic stresses impacting soybean yield. In this regard, understanding water uptake by plants, its utilization and transport has great importance. In plants, water transport is mainly governed by channel forming aquaporin proteins (AQPs). Tonoplast intrinsic proteins (TIPs) belong to the plant-specific AQP subfamily and are known to have a role in abiotic stress tolerance. In this study, 23 soybean TIP genes were identified based on the latest soybean genome annotation. TIPs were characterized based on conserved structural features and phylogenetic distribution. Expression analysis of soybean TIP genes in various tissues and under abiotic stress conditions demonstrated tissue/stress-response specific differential expression. The natural variations for TIP genes were analyzed using whole genome re-sequencing data available for a set of 106 diverse soybean genotypes including wild types, landraces and elite lines. Results revealed 81 single-nucleotide polymorphisms (SNPs) and several large insertions/deletions in the coding region of TIPs. Among these, non-synonymous SNPs are most likely to have a greater impact on protein function and are candidates for molecular studies as well as for the development of functional markers to assist breeding. The solute transport function of two TIPs was further validated by expression in Xenopus laevis oocytes. GmTIP1;5 was shown to facilitate the rapid movement of water across the oocyte membrane, while GmTIP2;5 facilitated the movement of water and boric acid. The present study provides an initial insight into the possible roles of soybean TIP genes under abiotic stress conditions. Our results will facilitate elucidation of their precise functions during abiotic stress responses and plant development, and will provide potential breeding targets for modifying water movement in soybean.

  11. Control of the Water Transport Activity of Barley HvTIP3;1 Specifically Expressed in Seeds.

    PubMed

    Utsugi, Shigeko; Shibasaka, Mineo; Maekawa, Masahiko; Katsuhara, Maki

    2015-09-01

    Tonoplast intrinsic proteins (TIPs) are involved in the transport and storage of water, and control intracellular osmotic pressure by transporting material related to the water potential of cells. In the present study, we focused on HvTIP3;1 during the periods of seed development and desiccation in barley. HvTIP3;1 was specifically expressed in seeds. An immunochemical analysis showed that HvTIP3;1 strongly accumulated in the aleurone layers and outer layers of barley seeds. The water transport activities of HvTIP3;1 and HvTIP1;2, which also accumulated in seeds, were measured in the heterologous expression system of Xenopus oocytes. When they were expressed individually, HvTIP1;2 transported water, whereas HvTIP3;1 did not. However, HvTIP3;1 exhibited water transport activity when co-expressed with HvTIP1;2 in oocytes, and this activity was higher than when HvTIP1;2 was expressed alone. This is the first report to demonstrate that the water permeability of a TIP aquaporin was activated when co-expressed with another TIP. The split-yellow fluorescent protein (YFP) system in onion cells revealed that HvTIP3;1 interacted with HvTIP1;2 to form a heterotetramer in plants. These results suggest that HvTIP3;1 functions as an active water channel to regulate water movement through tissues during the periods of seed development and desiccation.

  12. Tips for Social Studies Teachers: Activities from ERIC.

    ERIC Educational Resources Information Center

    Singleton, Laurel R., Ed.

    Action-oriented learning activities, most drawn from resources in the ERIC system, are designed to stimulate elementary and junior high school students' interest and participation while conveying important social studies content and skills. The activities are organized into six sections. The first section focuses on developing social studies…

  13. Test Rig for Evaluating Active Turbine Blade Tip Clearance Control Concepts

    NASA Technical Reports Server (NTRS)

    Lattime, Scott B.; Steinetz, Bruce M.; Robbie, Malcolm G.

    2003-01-01

    Improved blade tip sealing in the high pressure compressor and high pressure turbine can provide dramatic improvements in specific fuel consumption, time-on-wing, compressor stall margin and engine efficiency as well as increased payload and mission range capabilities of both military and commercial gas turbine engines. The preliminary design of a mechanically actuated active clearance control (ACC) system for turbine blade tip clearance management is presented along with the design of a bench top test rig in which the system is to be evaluated. The ACC system utilizes mechanically actuated seal carrier segments and clearance measurement feedback to provide fast and precise active clearance control throughout engine operation. The purpose of this active clearance control system is to improve upon current case cooling methods. These systems have relatively slow response and do not use clearance measurement, thereby forcing cold build clearances to set the minimum clearances at extreme operating conditions (e.g., takeoff, re-burst) and not allowing cruise clearances to be minimized due to the possibility of throttle transients (e.g., step change in altitude). The active turbine blade tip clearance control system design presented herein will be evaluated to ensure that proper response and positional accuracy is achievable under simulated high-pressure turbine conditions. The test rig will simulate proper seal carrier pressure and temperature loading as well as the magnitudes and rates of blade tip clearance changes of an actual gas turbine engine. The results of these evaluations will be presented in future works.

  14. Twelve tips for use of a white board in clinical teaching: reviving the chalk talk.

    PubMed

    Orlander, Jay D

    2007-03-01

    Little has been written on the art of using a board in clinical teaching. The technological development of the white board appears to have coincided with that of the laptop computer and accompanying LCD projector, so that fewer and fewer teaching sessions appear to utilize the board as an efficient teaching tool. I have observed this most commonly among younger faculty who are most comfortable with technology and who may lack training and experience with a blank board. This paper offers suggestions on using the board in clinical teaching in order to enhance the educational process through better engagement of the learners.

  15. [Providing successful education and further training: 10 tips].

    PubMed

    Brand, Paul L P; Boendermaker, Peter M; Venekamp, Ruud M

    2014-01-01

    Almost all physicians teach or provide postgraduate medical education from time to time. Although many people assume that there are 'born teachers' and 'those who will never learn to teach', teaching is an ability. The knowledge and skills required to teach well can be learned and practised. In this review article, we present 10 tips that will help the busy clinician to teach effectively. The 10 tips, which are based on the principles of adult learning, are: prepare your teaching session, involve the learners actively, connect to the learners' level of competence, define learning objectives, make the subject of your teaching relevant to the learners, use questions, be a good role model, vary your teaching methods, practise your teaching, and limit the amount of material you are teaching in each session.

  16. Ten Tips for Promoting Autonomous Learning and Effective Engagement in the Teaching of Statistics to Undergraduate Medical Students Involved in Short-Term Research Projects

    ERIC Educational Resources Information Center

    MacDougall, Margaret

    2008-01-01

    This article seeks to present some of the key challenges in facilitating autonomous learning and effective engagement in the teaching of statistics to undergraduate medical students involved in short-term research projects. With a view to addressing these challenges, recommendations for good practice are presented in the form of ten tips for…

  17. Root tip-dependent, active riboflavin secretion by Hyoscyamus albus hairy roots under iron deficiency.

    PubMed

    Higa, Ataru; Miyamoto, Erika; ur Rahman, Laiq; Kitamura, Yoshie

    2008-04-01

    Hyoscyamus albus hairy roots with/without an exogenous gene (11 clones) were established by inoculation of Agrobacterium rhizogenes. All clones cultured under iron-deficient condition secreted riboflavin from the root tips into the culture medium and the productivity depended on the number and size of root tips among the clones. A decline of pH was observed before riboflavin production and root development. By studying effects of proton-pump inhibitors, medium acidification with external organic acid, and riboflavin addition upon pH change and riboflavin productivity, we indicate that riboflavin efflux is not directly connected to active pH reduction, and more significantly active riboflavin secretion occurs as a response to an internal requirement in H. albus hairy roots under iron deficiency. PMID:18367404

  18. Active control of the tip vortex: an experimental investigation on the performance characteristics of a model turbine

    NASA Astrophysics Data System (ADS)

    Anik, E.; Abdulrahim, A.; Ostovan, Y.; Mercan, B.; Uzol, O.

    2014-06-01

    This study is part of an on-going experimental research campaign that focuses on the active control of the tip leakage/vortex characteristics of a model horizontal axis wind turbine rotor using tip injection. This paper presents both baseline (no-injection) data as well as data with tip injection, concentrating on the effects of tip injection on power and thrust variations with the Tip Speed Ratio (TSR). The experiments are conducted by placing a specially designed 3-bladed model wind turbine rotor at the exit of a 1.7 m diameter open-jet wind tunnel. The rotor blades are non-linearly twisted and tapered with NREL S826 airfoil profile all along the span. The nacelle, hub and the blades are specifically designed to allow pressurized air to pass through and get injected from the blade tips while the rotor is rotating. Baseline results show that the general trends are as expected for a small wind turbine and the maximum power coefficient is reached at around TSR=4.5. Results with injection show that the tip injection has significant effect on the power and thrust coefficients in comparison to the baseline data, especially at TSR values higher than the max CP TSR value. Both coefficients seem to be significantly increased due to tip injection and the max CP TSR value also gets shifted to a slightly higher TSR value. Tip injection seems to have no significant effect for TSR values less than 3.5.

  19. Tips, Tricks & Techniques: Creating & Teaching with Simple Animation: Making Biology Instruction Come Alive

    ERIC Educational Resources Information Center

    Zanin, Mary K. B.

    2015-01-01

    Over the years, many of my students have reported that they enjoy lectures that include short, simple animations. To keep students engaged, I have developed a small set of teaching animations using PowerPoint and Camtasia Studio software packages. A survey of students who learned four difficult topics with traditional written lessons and with…

  20. O Say, They Can Sing! Teachers Share Their Tips for Teaching the National Anthem

    ERIC Educational Resources Information Center

    Preston, Teresa K.

    2004-01-01

    Teachers who have made "The Star-Spangled Banner" a central part of their students' repertoire have found that students can learn it and take pride in staging this familiar song that even their parents consider too difficult. Many teachers recognize that the first obstacle in teaching the anthem is that students do not know the words or understand…

  1. The Path to Presidency: Tips for Teaching Elementary Students about the Election Process

    ERIC Educational Resources Information Center

    Conrad, Marika

    2016-01-01

    Teaching about presidential elections at the elementary level can seem a bit daunting at times. Students are quick to share their strong opinions on the current candidates running for office. These opinions often involve repeating feelings and phrases shared by parents around the dinner table the night before. For the average seven- or…

  2. What to Teach in Reading: Practical Activities.

    ERIC Educational Resources Information Center

    Porter, Para

    This booklet is written for use in university and college courses on the teaching of reading in the elementary grades. It is also written to assist supervisors, teachers, teacher assistants, and student teachers in knowing what to teach in reading and in planning activities to help children learn to read to their maximum potential. Parents also…

  3. Teaching Activity-Based Taxicab Geometry

    ERIC Educational Resources Information Center

    Ada, Tuba

    2013-01-01

    This study aimed on the process of teaching taxicab geometry, a non-Euclidean geometry that is easy to understand and similar to Euclidean geometry with its axiomatic structure. In this regard, several teaching activities were designed such as measuring taxicab distance, defining a taxicab circle, finding a geometric locus in taxicab geometry, and…

  4. Using Teaching Teams to Encourage Active Learning

    ERIC Educational Resources Information Center

    Gueldenzoph, Lisa E.

    2007-01-01

    This article discusses the use of teaching teams to encourage active learning in a business communication class. The author offers examples of short activities that can be used to help create an active learning environment. Some of these favorite activities include homework reviews, the value line, 3-2-1 processor, and muddiest point. In each of…

  5. Validation of mercury tip-switch and accelerometer activity sensors for identifying resting and active behavior in bears

    USGS Publications Warehouse

    Jasmine Ware,; Rode, Karyn D.; Pagano, Anthony M.; Bromaghin, Jeffrey; Charles T Robbins,; Joy Erlenbach,; Shannon Jensen,; Amy Cutting,; Nicole Nicassio-Hiskey,; Amy Hash,; Owen, Megan A.; Heiko Jansen,

    2015-01-01

    Activity sensors are often included in wildlife transmitters and can provide information on the behavior and activity patterns of animals remotely. However, interpreting activity-sensor data relative to animal behavior can be difficult if animals cannot be continuously observed. In this study, we examined the performance of a mercury tip-switch and a tri-axial accelerometer housed in collars to determine whether sensor data can be accurately classified as resting and active behaviors and whether data are comparable for the 2 sensor types. Five captive bears (3 polar [Ursus maritimus] and 2 brown [U. arctos horribilis]) were fitted with a collar specially designed to internally house the sensors. The bears’ behaviors were recorded, classified, and then compared with sensor readings. A separate tri-axial accelerometer that sampled continuously at a higher frequency and provided raw acceleration values from 3 axes was also mounted on the collar to compare with the lower resolution sensors. Both accelerometers more accurately identified resting and active behaviors at time intervals ranging from 1 minute to 1 hour (≥91.1% accuracy) compared with the mercury tip-switch (range = 75.5–86.3%). However, mercury tip-switch accuracy improved when sampled at longer intervals (e.g., 30–60 min). Data from the lower resolution accelerometer, but not the mercury tip-switch, accurately predicted the percentage of time spent resting during an hour. Although the number of bears available for this study was small, our results suggest that these activity sensors can remotely identify resting versus active behaviors across most time intervals. We recommend that investigators consider both study objectives and the variation in accuracy of classifying resting and active behaviors reported here when determining sampling interval.

  6. TIP list

    SciTech Connect

    Ludwig, M E

    2006-06-22

    Subcontractors and vendors providing services, including the installation of purchased goods, are required to complete a TIP List. This list does not include every Environment, Safety, and Health (ES&H) related concern at LLNL. It is intended to highlight major concerns common to most on-site service activities.

  7. Predicting mountain lion activity using radiocollars equipped with mercury tip-sensors

    USGS Publications Warehouse

    Janis, Michael W.; Clark, Joseph D.; Johnson, Craig

    1999-01-01

    Radiotelemetry collars with tip-sensors have long been used to monitor wildlife activity. However, comparatively few researchers have tested the reliability of the technique on the species being studied. To evaluate the efficacy of using tip-sensors to assess mountain lion (Puma concolor) activity, we radiocollared 2 hand-reared mountain lions and simultaneously recorded their behavior and the associated telemetry signal characteristics. We noted both the number of pulse-rate changes and the percentage of time the transmitter emitted a fast pulse rate (i.e., head up) within sampling intervals ranging from 1-5 minutes. Based on 27 hours of observations, we were able to correctly distinguish between active and inactive behaviors >93% of the time using a logistic regression model. We present several models to predict activity of mountain lions; the selection of which to us would depend on study objectives and logistics. Our results indicate that field protocols that use only pulse-rate changes to indicate activity can lead to significant classification errors.

  8. TAG (Teaching Active Games) for the Holidays

    ERIC Educational Resources Information Center

    Erwin, Heather E.; Bachtel, Amy

    2007-01-01

    Holidays present the perfect opportunity for physical educators to utilize creative TAG (Teaching Active Games) games to offer maximum physical activity opportunities for their students. The TAG ideas in this article offer physical education teachers quick, instant activities that involve very little equipment, time management, or instruction. At…

  9. Favorite Activities for the Teaching of Psychology

    ERIC Educational Resources Information Center

    Benjamin, Ludy T., Jr., Ed.

    2008-01-01

    The most popular activities from APA's successful "Activities Handbooks for the Teaching of Psychology" are gathered together and updated in this book of teachers' favorites. The lesson plans, which encourage active learning and involve the whole class, have stood the test of time and proven themselves to be entertaining, effective, and easy to…

  10. Tip-induced C-H activation and oligomerization of thienoanthracenes.

    PubMed

    Dinca, L E; MacLeod, J M; Lipton-Duffin, J; Fu, C; Ma, D; Perepichka, D F; Rosei, F

    2014-08-14

    The tip of a scanning tunneling microscope (STM) can be used to dehydrogenate freely-diffusing tetrathienoanthracene (TTA) molecules on Cu(111), trapping the molecules into metal-coordinated oligomeric structures. The process proceeds at bias voltages above ~3 V and produces organometallic structures identical to those resulting from the thermally-activated cross-coupling of a halogenated analogue. The process appears to be substrate dependent: no oligomerization was observed on Ag(111) or HOPG. This approach demonstrates the possibility of controlled synthesis and nanoscale patterning of 2D oligomer structures on selected surfaces.

  11. Evaluating Teaching and Research Activities--Finding the Right Balance.

    ERIC Educational Resources Information Center

    Vidal, Javier; Mora, Jose-Gines

    2003-01-01

    Analyzes on a national, regional, and institutional level the evaluation systems used to assess teaching and research activities at Spanish universities. Also examines ways in which evaluation systems orient to promote research activities to the detriment of teaching activities. (SWM)

  12. Teaching about Korea: Elementary and Secondary Activities.

    ERIC Educational Resources Information Center

    Lee, Yong-sook, Ed.; And Others

    The classroom activities in this book focus on teaching about Korean culture and society within the context of larger social science units. Also, some of the lessons may be taught within the context of the humanities and fine arts. An historical overview and a list of suggestions for working with small groups introduces the 18 lessons. The format…

  13. Communicative Activities for Teaching Listening and Speaking.

    ERIC Educational Resources Information Center

    Lanier, Lois Kleinhenn, Ed.

    A collection of classroom activities for teaching listening and speaking skills in English as a Second Language (ESL) is presented. They are designed to be accompanied by a tape (not included here). All were developed by teachers and have been used successfully in ESL classrooms. Topics and skill areas addressed in the games and exercises include:…

  14. Active Learning Strategies in Physics Teaching

    ERIC Educational Resources Information Center

    Karamustafaoglu, Orhan

    2009-01-01

    The purpose of this study was to determine physics teachers' opinions about student-centered activities applicable in physics teaching and learning in context. A case study approach was used in this research. First, semi-structured interviews were carried out with 6 physics teachers. Then, a questionnaire was developed based on the data obtained…

  15. AUTOMATED ACTIN FILAMENT SEGMENTATION, TRACKING AND TIP ELONGATION MEASUREMENTS BASED ON OPEN ACTIVE CONTOUR MODELS.

    PubMed

    Li, Hongsheng; Shen, Tian; Smith, Matthew B; Fujiwara, Ikuko; Vavylonis, Dimitrios; Huang, Xiaolei

    2009-06-28

    This paper presents an automated method for actin filament segmentation and tracking for measuring tip elongation rates in Total Internal Reflection Fluorescence Microscopy (TIRFM) images. The main contributions of the paper are: (i) we use a novel open active contour model for filament segmentation and tracking, which is fast and robust against noise; (ii) different strategies are proposed to solve the filament intersection problem, which is shown to be the main difficulty in filament tracking; and (iii) this fully automated method avoids the need of human interaction and thus reduces required time for the entire elongation measurement process on an image sequence. Application to experimental results demonstrated the robustness and effectiveness of this method.

  16. Tips on Teaching.

    ERIC Educational Resources Information Center

    Journalism Educator, 1987

    1987-01-01

    Discusses how an act assignment exposes students to federal agencies; experts and novices contribute and learn in PR case course; students control in-class PR agency; cabletext service shows good results; advertising focus emphasizes creative writer; writing by number aids story structure; student photo club sells lab supplies, for revenue; and…

  17. Teaching for Tips

    ERIC Educational Resources Information Center

    Saje, Natasha

    2005-01-01

    Waiting tables is filled with decisions like this, moments when servers use their knowledge of people to ease or vex their customers' souls. The server must approach each table and ascertain what the patrons want, or more precisely, what they need. And this includes not just what they want to eat and drink, but also how much they know about food…

  18. Teaching Tips: Mind Magnets

    ERIC Educational Resources Information Center

    Fortenberry, Callie L.; Fowler, Teri W.

    2006-01-01

    Mind magnets are maps to guide instruction and facilitate the comprehension processes. They extend individual comprehension strategy instruction, which does not typically show students how to link application of appropriate strategies to whole texts. The mind magnet framework allows teachers to plan powerful interactions between the reader and the…

  19. High Temperature Investigations into an Active Turbine Blade Tip Clearance Control Concept

    NASA Technical Reports Server (NTRS)

    Taylor, Shawn; Steinetz, Bruce M.; Oswald, Jay J.

    2007-01-01

    System studies have shown the benefits of reducing blade tip clearances in modern turbine engines. Minimizing blade tip clearances throughout the engine will contribute materially to meeting NASA s Ultra-Efficient Engine Technology (UEET) turbine engine project goals. NASA GRC is examining two candidate approaches including rub-avoidance and regeneration which are explained in subsequent slides.

  20. High Temperature Investigations into an Active Turbine Blade Tip Clearance Control Concept

    NASA Technical Reports Server (NTRS)

    Taylor, Shawn C.; Steinetz, Bruce; Oswald, Jay J.

    2008-01-01

    System studies have shown the benefits of reducing blade tip clearances in modern turbine engines. Minimizing blade tip clearances throughout the engine will contribute materially to meeting NASA s Ultra-Efficient Engine Technology (UEET) turbine engine project goals. NASA GRC is examining two candidate approaches including rub-avoidance and regeneration which are explained in subsequent slides.

  1. Teaching for Engagement: Part 3: Designing for Active Learning

    ERIC Educational Resources Information Center

    Hunter, William J.

    2015-01-01

    In the first two parts of this series, ("Teaching for Engagement: Part 1: Constructivist Principles, Case-Based Teaching, and Active Learning") and ("Teaching for Engagement: Part 2: Technology in the Service of Active Learning"), William J. Hunter sought to outline the theoretical rationale and research basis for such active…

  2. A Study on the Requirements for Fast Active Turbine Tip Clearance Control Systems

    NASA Technical Reports Server (NTRS)

    DeCastro, Jonathan A.; Melcher, Kevin J.

    2004-01-01

    This paper addresses the requirements of a control system for active turbine tip clearance control in a generic commercial turbofan engine through design and analysis. The control objective is to articulate the shroud in the high pressure turbine section in order to maintain a certain clearance set point given several possible engine transient events. The system must also exhibit reasonable robustness to modeling uncertainties and reasonable noise rejection properties. Two actuators were chosen to fulfill such a requirement, both of which possess different levels of technological readiness: electrohydraulic servovalves and piezoelectric stacks. Identification of design constraints, desired actuator parameters, and actuator limitations are addressed in depth; all of which are intimately tied with the hardware and controller design process. Analytical demonstrations of the performance and robustness characteristics of the two axisymmetric LQG clearance control systems are presented. Takeoff simulation results show that both actuators are capable of maintaining the clearance within acceptable bounds and demonstrate robustness to parameter uncertainty. The present model-based control strategy was employed to demonstrate the tradeoff between performance, control effort, and robustness and to implement optimal state estimation in a noisy engine environment with intent to eliminate ad hoc methods for designing reliable control systems.

  3. Acquisition of LURE-binding activity at the pollen tube tip of Torenia fournieri.

    PubMed

    Okuda, Satohiro; Suzuki, Takamasa; Kanaoka, Masahiro M; Mori, Hitoshi; Sasaki, Narie; Higashiyama, Tetsuya

    2013-07-01

    Pollen tube guidance is controlled by multiple complex interactions with the female tissues. Here, we show that pollen tubes of Torenia fournieri are regulated by a stylar tissue in a length-dependent manner to receive and respond to attractant LURE peptides secreted from synergid cells. We developed an immunostaining method to visualize LURE peptides bound at the plasma membrane of the tip region of the pollen tube. Using this method, we found that LURE peptides bound specifically to pollen tubes growing through a cut style. The peptides also bound to pollen tubes growing through a shorter style, which were not competent to respond to these peptides. These observations suggested a possibility that acquisition of the LURE peptide reception ability and acquisition of full competency are separable processes. RNA-Seq suggested that the transcription profile of pollen tubes was affected by both the length of the style and the cultivation period, consistently with physiological changes in binding activity and LURE response ability. The database generated from de novo RNA-Seq of Torenia pollen tubes was shown to be useful to identify pollen tube proteins by mass spectrometry. Our studies provide insight and an effective platform for protein identification to understand pollen tube guidance.

  4. EcoTipping Points

    ERIC Educational Resources Information Center

    Marten, Gerald G.; Matthews, Catherine E.

    2009-01-01

    Contrary to what we often hear and teach, there is good news to be found on the environmental front. Environmental success stories show us not only that sustainability is possible, but also how people have made it happen. We can make these stories and their lessons accessible to students with help from the EcoTipping Points Project, which has…

  5. The Macro - TIPS Course Package.

    ERIC Educational Resources Information Center

    Heriot-Watt Univ., Edinburgh (Scotland). Esmee Fairbairn Economics Research Centre.

    The TIPS (Teaching Information Processing System) Course Package was designed to be used with the Macro-Games Course Package (SO 011 930) in order to train college students to apply the tools of economic analysis to current problems. TIPS is used to provide feedback and individualized assignments to students, as well as information about the…

  6. Discrete-Layer Piezoelectric Plate and Shell Models for Active Tip-Clearance Control

    NASA Technical Reports Server (NTRS)

    Heyliger, P. R.; Ramirez, G.; Pei, K. C.

    1994-01-01

    The objectives of this work were to develop computational tools for the analysis of active-sensory composite structures with added or embedded piezoelectric layers. The targeted application for this class of smart composite laminates and the analytical development is the accomplishment of active tip-clearance control in turbomachinery components. Two distinct theories and analytical models were developed and explored under this contract: (1) a discrete-layer plate theory and corresponding computational models, and (2) a three dimensional general discrete-layer element generated in curvilinear coordinates for modeling laminated composite piezoelectric shells. Both models were developed from the complete electromechanical constitutive relations of piezoelectric materials, and incorporate both displacements and potentials as state variables. This report describes the development and results of these models. The discrete-layer theories imply that the displacement field and electrostatic potential through-the-thickness of the laminate are described over an individual layer rather than as a smeared function over the thickness of the entire plate or shell thickness. This is especially crucial for composites with embedded piezoelectric layers, as the actuating and sensing elements within these layers are poorly represented by effective or smeared properties. Linear Lagrange interpolation polynomials were used to describe the through-thickness laminate behavior. Both analytic and finite element approximations were used in the plane or surface of the structure. In this context, theoretical developments are presented for the discrete-layer plate theory, the discrete-layer shell theory, and the formulation of an exact solution for simply-supported piezoelectric plates. Finally, evaluations and results from a number of separate examples are presented for the static and dynamic analysis of the plate geometry. Comparisons between the different approaches are provided when

  7. Active Ways to Teach Health Concepts in the Elementary Setting

    ERIC Educational Resources Information Center

    Gregory, Julie

    2015-01-01

    This article provides three movement-based activities for teaching health concepts to elementary school students. Two activities focus on nutrition concepts and the other focuses on teaching body systems. Diagrams are provided to show the setup of activities, as well as links for accessing materials to help implement the activities.

  8. Intermittent contact-scanning electrochemical microscopy (IC-SECM): a new approach for tip positioning and simultaneous imaging of interfacial topography and activity.

    PubMed

    McKelvey, Kim; Edwards, Martin A; Unwin, Patrick R

    2010-08-01

    A new scanning electrochemical microscopy (SECM) tip positioning method that allows surface topography and activity to be resolved simultaneously and independently is presented. The tip, controlled by a piezoelectric positioner operated in closed loop, is oscillated normal to the substrate surface. Changes in the oscillation amplitude, caused by the intermittent contact (IC) of the tip with the substrate surface, are used as a feedback signal to control the tip height. The method is illustrated with amperometric feedback approach curve measurements to inert (insulating) and active (conducting) substrates using 12.5 and 1 microm radii Pt disk electrodes. Imaging of gold bands on a glass substrate demonstrates the capabilities for simultaneous topography and activity mapping. The prospect for using IC methodology more widely with other types of tips is highlighted briefly.

  9. Technology Tips

    ERIC Educational Resources Information Center

    Mathematics Teacher, 2004

    2004-01-01

    Some inexpensive or free ways that enable to capture and use images in work are mentioned. The first tip demonstrates the methods of using some of the built-in capabilities of the Macintosh and Windows-based PC operating systems, and the second tip describes methods to capture and create images using SnagIt.

  10. MRI active guidewire with an embedded temperature probe and providing a distinct tip signal to enhance clinical safety

    PubMed Central

    2012-01-01

    Background The field of interventional cardiovascular MRI is hampered by the unavailability of active guidewires that are both safe and conspicuous. Heating of conductive guidewires is difficult to predict in vivo and disruptive to measure using external probes. We describe a clinical-grade 0.035” (0.89 mm) guidewire for MRI right and left heart catheterization at 1.5 T that has an internal probe to monitor temperature in real-time, and that has both tip and shaft visibility as well as suitable flexibility. Methods The design has an internal fiberoptic temperature probe, as well as a distal solenoid to enhance tip visibility on a loopless antenna. We tested different tip-solenoid configurations to balance heating and signal profiles. We tested mechanical performance in vitro and in vivo in comparison with a popular clinical nitinol guidewire. Results The solenoid displaced the point of maximal heating (“hot spot”) from the tip to a more proximal location where it can be measured without impairing guidewire flexion. Probe pullback allowed creation of lengthwise guidewire temperature maps that allowed rapid evaluation of design prototypes. Distal-only solenoid attachment offered the best compromise between tip visibility and heating among design candidates. When fixed at the hot spot, the internal probe consistently reflected the maximum temperature compared external probes. Real-time temperature monitoring was performed during porcine left heart catheterization. Heating was negligible using normal operating parameters (flip angle, 45°; SAR, 1.01 W/kg); the temperature increased by 4.2°C only during high RF power mode (flip angle, 90°; SAR, 3.96 W/kg) and only when the guidewire was isolated from blood cooling effects by an introducer sheath. The tip flexibility and in vivo performance of the final guidewire design were similar to a popular commercial guidewire. Conclusions We integrated a fiberoptic temperature probe inside a 0.035” MRI guidewire

  11. A Combination of Diffusion and Active Translocation Localizes Myosin 10 to the Filopodial Tip*

    PubMed Central

    Baboolal, Thomas G.; Mashanov, Gregory I.; Nenasheva, Tatiana A.; Peckham, Michelle; Molloy, Justin E.

    2016-01-01

    Myosin 10 is an actin-based molecular motor that localizes to the tips of filopodia in mammalian cells. To understand how it is targeted to this distinct region of the cell, we have used total internal reflection fluorescence microscopy to study the movement of individual full-length and truncated GFP-tagged molecules. Truncation mutants lacking the motor region failed to localize to filopodial tips but still bound transiently at the plasma membrane. Deletion of the single α-helical and anti-parallel coiled-coil forming regions, which lie between the motor and pleckstrin homology domains, reduced the instantaneous velocity of intrafilopodial movement but did not affect the number of substrate adherent filopodia. Deletion of the anti-parallel coiled-coil forming region, but not the EKR-rich region of the single α-helical domain, restored intrafilopodial trafficking, suggesting this region is important in determining myosin 10 motility. We propose a model by which myosin 10 rapidly targets to the filopodial tip via a sequential reduction in dimensionality. Molecules first undergo rapid diffusion within the three-dimensional volume of the cell body. They then exhibit periods of slower two-dimensional diffusion in the plane of the plasma membrane. Finally, they move in a unidimensional, highly directed manner along the polarized actin filament bundle within the filopodium becoming confined to a single point at the tip. Here we have observed directly each phase of the trafficking process using single molecule fluorescence imaging of live cells and have quantified our observations using single particle tracking, autocorrelation analysis, and kymographs. PMID:27566544

  12. Thermal activation of crack-tip plasticity: The brittle or ductile response of a stationary crack loaded to failure

    NASA Astrophysics Data System (ADS)

    Hartmaier, Alexander; Gumbsch, Peter

    2005-01-01

    Metals with a body centered cubic crystal structure, like tungsten, exhibit a pronounced semibrittle regime at intermediate temperatures. In this regime their fracture toughness strongly depends on loading rate and temperature. Crack-tip plasticity has been studied with two-dimensional numerical simulations on different length scales. The method of discrete dislocation dynamics has been employed to test various assumptions made on the deformation mechanisms and the origin of the strong loading rate and temperature dependence of fracture toughness in this regime. A continuum elasticity-viscoplasticity model capable of describing larger plastic deformations yields complementary information with respect to the discrete dislocation method. Despite of their fundamental differences, both simulations consistently show that crack-tip plasticity can be described as a time-dependent microplastic deformation with well-defined activation energy and that the blunting of the crack tip plays an important role for the transition from semibrittle to ductile behavior. Based on general findings of the numerical simulations an Arrheniuslike relation between loading rate and temperature at points of constant fracture toughness is derived. This scaling relation shows the dominance of dislocation mobility as the rate limiting factor for fracture toughness and for the brittle-to-ductile transition itself. The results of our simulations are also consistent with experimental data gathered on tungsten single crystals. Thus, the proposed scaling relation can be used to predict fracture toughnesses in a wide range of temperatures and loading rates, based on only a small number of experiments.

  13. When Are Beliefs Just "the Tip of the Iceberg"?: Exploring Early Childhood Professionals' Beliefs and Practices about Teaching and Learning

    ERIC Educational Resources Information Center

    Rivalland, Corine M. Patricia

    2007-01-01

    Few research projects have captured the voices of childcare professionals about their personal beliefs in relation to teaching and learning. Using a qualitative case study approach with an emphasis on social constructivism, this descriptive study aimed to understand beliefs and practices as part of an underlying system, rather than as separate…

  14. The Foreign Language Feature Film and Language Teaching Activities.

    ERIC Educational Resources Information Center

    Chappell, Martin

    1986-01-01

    Analysis of foreign language films, featuring consideration of film sequence, image and film analysis, and literary adaptation, is an effective teaching activity with foreign language students. An example illustrates film analysis activities in a first-year French class. (CB)

  15. Tipping Points

    NASA Astrophysics Data System (ADS)

    Hansen, J.

    2007-12-01

    A climate tipping point, at least as I have used the phrase, refers to a situation in which a changing climate forcing has reached a point such that little additional forcing (or global temperature change) is needed to cause large, relatively rapid, climate change. Present examples include potential loss of all Arctic sea ice and instability of the West Antarctic and Greenland ice sheets. Tipping points are characterized by ready feedbacks that amplify the effect of forcings. The notion that these may be runaway feedbacks is a misconception. However, present "unrealized" global warming, due to the climate system's thermal inertia, exacerbates the difficulty of avoiding global warming tipping points. I argue that prompt efforts to slow CO2 emissions and absolutely reduce non-CO2 forcings are both essential if we are to avoid tipping points that would be disastrous for humanity and creation, the planet as civilization knows it.

  16. Tipping Point

    MedlinePlus

    ... Tipping Point by CPSC Blogger September 22 appliance child Childproofing CPSC danger death electrical fall furniture head injury product safety television tipover tv Watch the video in Adobe Flash format. Almost weekly, we see ...

  17. Test Rig for Evaluating Active Turbine Blade Tip Clearance Control Concepts

    NASA Technical Reports Server (NTRS)

    Lattime, Scott B.; Steinetz, Bruce M.; Robbie, Malcolm G.; Erker, Arthur H.

    2004-01-01

    The objectives of the research presented in this viewgraph presentation are to 1) Design a mechanical ACC system for HPT tip seal clearance management; 2) Design a test rig to evaluate ACC system concepts. We have focused our efforts on designing mechanical ACC systems that articulate the seal shroud via mechanical linkages connected to actuators that reside outside the extreme environment of the HPT. We opted for this style of design due to a lack of high temperature/low profile actuators that are presently available. We have also selected multiple hydraulic actuators for this first generation ACC system. Fuel-draulic actuators are already a well established technology.

  18. What Is a Good Activity for Teaching World Literature to High School Students?

    ERIC Educational Resources Information Center

    Razzano, Elaine; Baldwin, Anna E.; Cobbs, Lewis; Whitaker, Sandra; Parker, Jessica; Krajcovic, Frank J.

    2002-01-01

    Presents six educators' ideas for good activities for teaching world literature to high school students. Describes ideas, activities, and experiences with innovative ways to teach World Literature. (SG)

  19. Multisensory Teaching of Basic Language Skills Activity Book. Revised Edition

    ERIC Educational Resources Information Center

    Carreker, Suzanne; Birsh, Judith R.

    2011-01-01

    With the new edition of this activity book--the companion to Judith Birsh's bestselling text, "Multisensory Teaching of Basic Language Skills"--students and practitioners will get the practice they need to use multisensory teaching effectively with students who have dyslexia and other learning disabilities. Ideal for both pre-service teacher…

  20. Low-Threshold Active Teaching Methods for Mathematic Instruction

    ERIC Educational Resources Information Center

    Marotta, Sebastian M.; Hargis, Jace

    2011-01-01

    In this article, we present a large list of low-threshold active teaching methods categorized so the instructor can efficiently access and target the deployment of conceptually based lessons. The categories include teaching strategies for lecture on large and small class sizes; student action individually, in pairs, and groups; games; interaction…

  1. Multibeam investigation of the active North Atlantic plate boundary reorganization tip

    NASA Astrophysics Data System (ADS)

    Hey, Richard; Martinez, Fernando; Höskuldsson, Ármann; Eason, Deborah E.; Sleeper, Jonathan; Thordarson, Sigvaldi; Benediktsdóttir, Ásdís; Merkuryev, Sergey

    2016-02-01

    The previous orthogonal ridge/transform staircase geometry south of Iceland is being progressively changed to the present continuous oblique Reykjanes Ridge spreading geometry as North America-Eurasia transform faults are successively eliminated from north to south. This reorganization is commonly interpreted as a thermal phenomenon, caused by warmer Iceland plume mantle progressively interacting with the ridge, although other diachronous seafloor spreading reorganizations are thought to result from tectonic rift propagation. New marine geophysical data covering our reinterpretation of the reorganization tip near 57°N show successive transform eliminations at a propagation velocity of ∼110 km/Myr, ten times the spreading half rate, followed by abrupt reorganization slowing at the Modred transform as it was converted to a migrating non-transform offset. Neither the simple thermal model nor the simple propagating rift model appears adequate to explain the complicated plate boundary reorganization process.

  2. Elementary teachers committed to actively teaching science and engineering

    NASA Astrophysics Data System (ADS)

    Opperman, Julianne Radkowski

    Committed elementary teachers of science and engineering, members of a professional learning community called Collaborative Conversations in STEM, were studied to elicit their perceptions of experiences that influenced their commitment to, and their pedagogical content knowledge of, STEM teaching and learning. The hermeneutic phenomenological interviews enabled the teachers to express their beliefs in their own words. Data analysis employed a theoretical framework that investigated teacher epistemology and knowledge in light of their experiences. Findings revealed a web of lifelong experiences unique to each individual, and evidential of the committed elementary scientist-teachers' present day values, teaching epistemology, lifelong learning, and emotional and intellectual engagement. Scientist-teachers are individuals whose teaching and learning characteristics reflect those of scientists and engineers. Evidence indicated that no single transformative learning experience resulted in those elementary teachers' commitment to STEM teaching and learning, but recent professional development activities were influential. Formal K-16 STEM learning was not uniformly or positively influential to the teachers' commitment to, or knowledge of, STEM. Findings suggest that ongoing professional development for STEM teaching and learning can influence elementary teachers to become committed to actively teaching STEM. The Collaborative Conversations in STEM provided intellectual and emotional engagement that empowered the teachers to provide STEM teaching and learning for their students and their colleagues overcoming impediments encountered in a literacy-focused curriculum. Elementary teachers actively committed to teaching science and engineering can undergo further transformation and emerge as leaders.

  3. Globular body production, their anatomy, DNase gel analysis and NDP kinase activity in root tips of Poncirus trifoliata L.

    PubMed

    Tzatzani, Thiresia-Teresa; Dimassi-Theriou, Kortessa; Yupsanis, Traianos; Bosabalidis, Artemios; Therios, Ioannis; Sarropoulou, Virginia

    2013-10-01

    Green globular bodies were developed from Poncirus trifoliata L. root tip explants as a response to addition in the substrate of different growth regulators. From the globular bodies, shoots initiated and grew. Median section of the globular bodies reveals that they are composed of parenchyma cells and originate from the pericycle. The activity of DNases during shoot formation from globular bodies was influenced by the type and concentration of plant growth regulators that were added in the nutrient substrate. Peptide bands formation was also influenced by the increase of BA concentration. Consequently, BA, NAA and IAA combination influenced 5'-triphosphonucleosides (NTPs) appearance and activity in the presence of metal. Peptide bands resulted from the electrophoretic analysis of endogenous protein phosphorylation, proved to be catalytic subunits of NDP kinases, as they all phosphorylate diphosphonucleosides. The enzymes DNases and NDP kinases could be used as a scientific tool for the study of shoot formation from P. trifoliata L. green globular bodies.

  4. Technology Tips

    ERIC Educational Resources Information Center

    Santos-Trigo, Manuel

    2004-01-01

    A dynamic program for geometry called Cabri Geometry II is used to examine properties of figures like triangles and make connections with other mathematical ideas like ellipse. The technology tip includes directions for creating such a problem with technology and suggestions for exploring it.

  5. A to Z Teaching Activities for Consumer Education.

    ERIC Educational Resources Information Center

    Bahr, Gladys

    One word was selected for each letter of the alphabet and used to develop a learning activity for teaching consumer education at the high school level. In addition to the word on which the activity is based, other words for each letter are listed which may suggest activities. Ten of the sheets are designed to be duplicated for student use. The…

  6. Designing Technology Activities that Teach Mathematics

    ERIC Educational Resources Information Center

    Silk, Eli M.; Higashi, Ross; Shoop, Robin; Schunn, Christian D.

    2010-01-01

    Over the past three years, the authors have conducted research in middle and high school classrooms in an effort to improve the effectiveness of robotics to teach science, technology, engineering, and mathematics (STEM) education--their focus has been on math. The authors have found that subtle changes in the design and setup of the lesson make a…

  7. Collaborative activities for improving the quality of science teaching and learning and learning to teach science

    NASA Astrophysics Data System (ADS)

    Tobin, Kenneth

    2012-03-01

    I have been involved in research on collaborative activities for improving the quality of teaching and learning high school science. Initially the collaborative activities we researched involved the uses of coteaching and cogenerative dialogue in urban middle and high schools in Philadelphia and New York (currently I have active research sites in New York and Brisbane, Australia). The research not only transformed practices but also produced theories that informed the development of additional collaborative activities and served as interventions for research and creation of heuristics for professional development programs and teacher certification courses. The presentation describes a collage of collaborative approaches to teaching and learning science, including coteaching, cogenerative dialogue, radical listening, critical reflection, and mindful action. For each activity in the collage I provide theoretical frameworks and empirical support, ongoing research, and priorities for the road ahead. I also address methodologies used in the research, illustrating how teachers and students collaborated as researchers in multilevel investigations of teaching and learning and learning to teach that included ethnography, video analysis, and sophisticated analyses of the voice, facial expression of emotion, eye gaze, and movement of the body during classroom interactions. I trace the evolution of studies of face-to-face interactions in science classes to the current focus on emotions and physiological aspects of teaching and learning (e.g., pulse rate, pulse strength, breathing patterns) that relate to science participation and achievement.

  8. Ten Fire Safety Tips for Schools.

    ERIC Educational Resources Information Center

    Lake, James D.

    1999-01-01

    Provides 10 basic tips, compiled from the National Fire Protection Association's Life Safety Code 101, to ensure that educational facilities are fire safe. Tips include use of frequent and unexpected fire drills, limiting wall space of student artwork and teaching materials, being alert to preventing arson, planning speedy and safe emergency…

  9. Being an Effective Teacher Five Tips for Busy Clinicians.

    PubMed

    Szostek, Jason

    2016-01-01

    Teaching is challenging, and most clinicians have little-to-no formal training on how to teach. For many, the extent of their experience has been limited to teaching medical students during residency. Many clinicians would benefit from learning about effective teaching practices. This article offers practical tips to help busy clinicians who teach medical trainees of all levels. PMID:27323523

  10. Tips for Conducting the Pre-Brief for a Simulation.

    PubMed

    Stephenson, Evelyn; Poore, Julie

    2016-08-01

    The pre-brief is an important part of a simulation. It offers participants an orientation to the simulation environment and enables them to reach the intended goals and objectives of the learning activity. This article describes the components of the pre-brief and provides practical tips on how to conduct this step using a simulation. These teaching strategies will help provide a positive learning experience for participants. J Contin Educ Nurs. 2016;47(8):353-355. PMID:27467309

  11. A Guided Inquiry Activity for Teaching Ligand Field Theory

    ERIC Educational Resources Information Center

    Johnson, Brian J.; Graham, Kate J.

    2015-01-01

    This paper will describe a guided inquiry activity for teaching ligand field theory. Previous research suggests the guided inquiry approach is highly effective for student learning. This activity familiarizes students with the key concepts of molecular orbital theory applied to coordination complexes. Students will learn to identify factors that…

  12. Environmental Activities for Teaching Critical Thinking. [Environmental Education Information Report.

    ERIC Educational Resources Information Center

    Howe, Robert W.; Disinger, John F.

    The ability to think critically is essential if individuals are to live, work, and function effectively in our current and changing society. The activities included in this publication were selected to identify a variety of effective strategies for teaching critical thinking skills through environmental education. Activities include library…

  13. Thinking Globally and Acting Locally: Environmental Education Teaching Activities.

    ERIC Educational Resources Information Center

    Mann, Lori D.; Stapp, William B.

    Provided are teaching activities related to: (1) food production and distribution; (2) energy; (3) transportation; (4) solid waste; (5) chemicals in the environment; (6) resource management; (7) pollution; (8) population; (9) world linkages; (10) endangered species; and (11) lifestyle and environment. The activities, designed to help learners…

  14. Genetic Dissection of the Signaling Cascade that Controls Activation of the Shigella Type III Secretion System from the Needle Tip

    PubMed Central

    Murillo, I.; Martinez-Argudo, I.; Blocker, A. J.

    2016-01-01

    Many Gram-negative bacterial pathogens use type III secretion systems (T3SSs) for virulence. The Shigella T3SS consists of a hollow needle, made of MxiH and protruding from the bacterial surface, anchored in both bacterial membranes by multimeric protein rings. Atop the needle lies the tip complex (TC), formed by IpaD and IpaB. Upon physical contact with eukaryotic host cells, T3S is initiated leading to formation of a pore in the eukaryotic cell membrane, which is made of IpaB and IpaC. Through the needle and pore channels, further bacterial proteins are translocated inside the host cell to meditate its invasion. IpaD and the needle are implicated in transduction of the host cell-sensing signal to the T3S apparatus. Furthermore, the sensing-competent TC seems formed of 4 IpaDs topped by 1 IpaB. However, nothing further is known about the activation process. To investigate IpaB’s role during T3SS activation, we isolated secretion-deregulated IpaB mutants using random mutagenesis and a genetic screen. We found ipaB point mutations in leading to defects in secretion activation, which sometimes diminished pore insertion and host cell invasion. We also demonstrated IpaB communicates intramolecularly and intermolecularly with IpaD and MxiH within the TC because mutations affecting these interactions impair signal transduction. PMID:27277624

  15. On the Characterization of the Spatio-Temporal Profiles of Brain Activity Associated with Face Naming and the Tip-of-the-Tongue State: A Magnetoencephalographic (MEG) Study

    ERIC Educational Resources Information Center

    Lindin, Monica; Diaz, Fernando; Capilla, Almudena; Ortiz, Tomas; Maestu, Fernando

    2010-01-01

    The tip-of-the-tongue state (TOT) in face naming is a transient state of difficulty in access to a person's name along with the conviction that the name is known. The aim of the present study was to characterize the spatio-temporal course of brain activation in the successful naming and TOT states, by means of magnetoencephalography, during a…

  16. Internet without Fear! Practical Tips and Activities for the Elementary Classroom.

    ERIC Educational Resources Information Center

    Offutt, Elizabeth Rhodes; Offutt, Charles R.

    This book provides guidelines on how to use the Internet, discusses the educational benefits of the Internet, and includes several activities in seven subject areas for grades K-6. The book is divided into two parts: "Entering a New World" and "Integrating Internet Resources Throughout the Curriculum." The first part provides a glossary of…

  17. Conceptions of Effective Teaching and Perceived Use of Computer Technologies in Active Learning Classrooms

    ERIC Educational Resources Information Center

    Gebre, Engida; Saroyan, Alenoush; Aulls, Mark W.

    2015-01-01

    This paper examined professors' conceptions of effective teaching in the context of a course they were teaching in active learning classrooms and how the conceptions related to the perceived role and use of computers in their teaching. We interviewed 13 professors who were teaching in active learning classrooms in winter 2011 in a large research…

  18. Outside the Classroom and beyond Psychology: A Citation Analysis of the Scientific Influence of Teaching Activities

    ERIC Educational Resources Information Center

    Tomcho, Thomas J.; Foels, Rob; Walter, Mark I.; Yerkes, Kyle; Brady, Brittany; Erdman, Molly; Dantoni, Lindsay; Venables, Megan; Manry, Allison

    2015-01-01

    A primary objective for researchers who publish teaching activities and methods in the "Teaching of Psychology" (ToP) is to inform best practices in classroom teaching. Beyond the learning effect in the classroom, these ToP teaching activity and method articles may also have a "scientific" effect that heretofore researchers…

  19. ELECTROMYOGRAPHIC ACTIVITY AT THE BASE AND TIP OF THE TONGUE ACROSS SLEEP-WAKE STATES IN RATS

    PubMed Central

    Lu, Jackie W.; Kubin, Leszek

    2009-01-01

    Obstructive sleep apnea (OSA) patients have elevated tonic and phasic inspiratory activity in the genioglossus and other upper airway muscles during wakefulness; this protects their upper airway from collapse. In this group, sleep-related decrements of upper airway motor tone result in sleep-related upper airway obstructions. We previously reported that in the rat, a species widely used to study the neural mechanisms of both sleep and breathing, lingual electromyographic activity (EMG) is minimal or absent during slow-wave sleep (SWS) and then gradually increases after the onset of rapid eye movement sleep (REMS) due to the appearance of large phasic bursts. Here, we investigated whether sleep-wake patterns and respiratory modulation of lingual EMG depend on the site of EMG recording within the tongue. In nine chronically instrumented rats, we recorded from 17 sites within the tongue and from the diaphragm across sleep-wake states. We quantified lingual EMG in successive 10 s intervals of continuous 2 h recordings (1–3 pm). We found that sleep-wake patterns of lingual EMG did not differ between the base and tip of the tongue, and that respiratory modulation was extremely rare regardless of the recording site. We also determined that the often rhythmic lingual bursts during REMS do not occur with respiratory rhythmicity. This pattern differs from that in OSA subjects who, unlike rats, have collapsible upper airway, exhibit prominent respiratory-modulation of upper airway motor tone during quiet wakefulness, retain considerable tonic and inspiratory phasic activity during SWS, and show nadirs of activity during REMS. PMID:19539786

  20. Teaching Tips: Plant Tissue Testing.

    ERIC Educational Resources Information Center

    Osborne, Ed

    1991-01-01

    Plant tissue testing can be done to monitor plant nutrition levels during the growing season and diagnose nutrient deficiency problems. They can provide feedback on crop conditions and fertility needs. (Author)

  1. Teaching Tips: For What Purpose?

    ERIC Educational Resources Information Center

    Hedges, Lowell E.; And Others

    1985-01-01

    Suggestions for teachers are presented, involving audiovisual materials, magazines, worksheets, safety reports, computers, bulletin boards, storage, problem solving, computer-assisted job searches, visual aids, motivating techniques, visual communications, engine valve display, computer printouts for stencils, wheel alignment for tractor axles,…

  2. Active Lessons for Active Brains: Teaching Boys and Other Experiential Learners, Grades 3-10

    ERIC Educational Resources Information Center

    James, Abigail Norfleet; Allison, Sandra Boyd; McKenzie, Caitlin Zimmerman

    2011-01-01

    If you're tired of repeating yourself to students who aren't listening, try a little less talk and a lot more action. The authors follow the best-selling "Teaching the Male Brain and Teaching the Female Brain" with this ready-to-use collection of mathematics, language arts, science, and classroom management strategies. Designed for active,…

  3. Learning by Doing: An Empirical Study of Active Teaching Techniques

    ERIC Educational Resources Information Center

    Hackathorn, Jana; Solomon, Erin D.; Blankmeyer, Kate L.; Tennial, Rachel E.; Garczynski, Amy M.

    2011-01-01

    The current study sought to examine the effectiveness of four teaching techniques (lecture, demonstrations, discussions, and in-class activities) in the classroom. As each technique offers different benefits to the instructor and students, each technique was expected to aid in a different depth of learning. The current findings indicated that each…

  4. The Jar Magic--Instructional Activities for Teaching Air Pressure

    ERIC Educational Resources Information Center

    Ku, Bing-Hong; Chen, Chyong-Sun

    2013-01-01

    There are a variety of impressive activities designed for teaching the concept of air pressure to junior high school students. Water, glasses, balloons, plastic bottles, and suction cups are some of the items commonly used in these experiments. For example, if we take a glass of water, cover it with a piece of cardboard, and invert the glass,…

  5. Suggestions, Resources and Activities for Teaching about Japan.

    ERIC Educational Resources Information Center

    Thomas, Paul F.

    This teacher resource packet contains a total of 28 modules for teaching about Japan at the elementary and secondary level. Activities on the Japanese family appropriate for grade 1 focus on similarities and differences, family size, family needs, and family roles. Grade 2 lessons look at the school, neighborhood, roles of children in the…

  6. [A Booklet of Teaching Activities about Japan.] Draft Copy.

    ERIC Educational Resources Information Center

    Hadd, Pauline, Ed.; And Others

    Designed to assist elementary teachers in developing global understanding among their students, this publication contains a collection of activities for teaching about Japan. Material is divided into sections on the Japanese people and way of life, arts, natural features, economy, and transportation and communication. The 25 lessons include…

  7. Instructional Design for Teaching Physical Activities: A Knowledge Structures Approach.

    ERIC Educational Resources Information Center

    Vickers, Joan N.

    This text uses the unique Knowledge Structures (KS) Model developed specifically for those who teach and coach complex physical skills. The KS Model provides the framework for constructing a sport-specific curriculum based on all of the pertinent information needed to perform a sport or activity. The model is cross-disciplinary, integrating…

  8. The Economics of Saving Endangered Species: A Teaching Activity.

    ERIC Educational Resources Information Center

    Schug, Mark C.; Shaw, Jane S.

    1997-01-01

    Argues that well-intentioned government policies, such as the Endangered Species Act, can actually cause harm to endangered species by creating disincentives to preserving the habitat for endangered species. Maintains that the use of incentives can lead to voluntary species protection. Includes instructions for an in-class teaching activity. (MJP)

  9. Activities To Teach Mathematics in the Context of Environmental Studies.

    ERIC Educational Resources Information Center

    Thomson, Barbara S.; Hartog, Martin D.

    The National Council of Teachers of Mathematics' (NCTM) "Curriculum and Evaluation Standards" recommends that mathematical connections be made between mathematics and other disciplines. This book presents 35 activities for middle school students that integrate the teaching of mathematical concepts with environmental concepts. An introduction…

  10. An Activity for Teaching the Effects of Nonverbal Communication

    ERIC Educational Resources Information Center

    Morgan, Whitney Botsford; King, Eden B.

    2012-01-01

    This article describes a novel teaching activity that allows students in diversity, leadership, and communication courses to observe the powerful effects of nonverbal communication. The nonverbal experiences female leaders may encounter as they rise through the ranks of organizations are simulated and consequences discussed. Two student volunteers…

  11. Measurement for Work. Teaching Guide and Sample Learning Activities.

    ERIC Educational Resources Information Center

    Angel, Margo; Bolton, Chris

    This document is intended to help Australian technical and further education instructors in New South Wales (TAFE NSW) identify teaching principles and learning activities that they can use to help adult learners master the mathematics processes, knowledge, and skills needed to perform basic measurement tasks in today's workplace. The materials…

  12. Suggested Activities for Teaching Reading through the Newspaper.

    ERIC Educational Resources Information Center

    Henney, Maribeth

    The 101 activities using the newspaper for teaching reading listed in this document range from such simple tasks as having children write captions for photos from the newspaper to the more advanced and complicated assignments of learning the use of propaganda devices or the five kinds of news stories. In addition, definitions for newspaper terms…

  13. Using Kinesthetic Activities to Teach Ptolemaic and Copernican Retrograde Motion

    ERIC Educational Resources Information Center

    Richards, Ted

    2012-01-01

    This paper describes a method for teaching planetary retrograde motion, and the Ptolemaic and Copernican accounts of retrograde motion, by means of a series kinesthetic learning activities (KLAs). In the KLAs described, the students literally walk through the motions of the planets in both systems. A retrospective statistical analysis shows that…

  14. Detection of active corrosion in reinforced and prestressed concrete: overview of NIST TIP project

    NASA Astrophysics Data System (ADS)

    Gonzalez-Nunez, M. A.; Nanni, A.; Matta, F.; Ziehl, P.

    2011-04-01

    The US transportation infrastructure has been receiving intensive public and private attention in recent years. The Federal Highway Administration estimates that 42 percent of the nearly 600,000 bridges in the Unites States are in need of structural or functional rehabilitation1. Corrosion of reinforcement steel is the main durability issue for reinforced and prestressed concrete structures, especially in coastal areas and in regions where de-icing salts are regularly used. Acoustic Emission (AE) has proved to be a promising method for detecting corrosion in steel reinforced and prestressed concrete members. This type of non-destructive test method primarily measures the magnitude of energy released within a material when physically strained. The expansive ferrous byproducts resulting from corrosion induce pressure at the steel-concrete interface, producing longitudinal and radial microcracks that can be detected by AE sensors. In the experimental study presented herein, concrete block specimens with embedded steel reinforcing bars and strands were tested under accelerated corrosion to relate the AE activity with the onset and propagation stages of corrosion. AE data along with half cell potential measurements and galvanic current were recorded to examine the deterioration process. Finally, the steel strands and bars were removed from the specimens, cleaned and weighed. The results were compared vis-à-vis Faraday's law to correlate AE measurements with degree of corrosion in each block.

  15. Some Techniques for Teaching about the Structure and Function of Chromosomes.

    ERIC Educational Resources Information Center

    Lowery, Roger; Taylor, Neil; Nathan, Subhashni

    2000-01-01

    Presents a teaching activity that uses photographs and diagrams to simulate two microscopic laboratory techniques used to observe the structure of chromosomes. Techniques include observation of squashed onion root tips and the salivary glands of some fruitfly larvae. (WRM)

  16. Math Activities for Teaching about Aging.

    ERIC Educational Resources Information Center

    Doyle, Roberta E.; Pappas, Anthony A.

    By participating in these class activities, students will acquire mathematical skills and at the same time learn about aging. Topics related to aging are often quantitative, and therefore, subject to mathematical analysis and procedures. The activities, which contain teacher suggestions and all student handouts, deal with seven topics. In the…

  17. Wise Water Ways. Teaching Guide. Activity Book.

    ERIC Educational Resources Information Center

    Crites, Alice; And Others

    To increase student's awareness of the need to conserve water and ways they can become personally involved in developing water-saving habits, a water conservation education program was established. The program described contains a series of activities to be presented in the form of discussions, games, and puzzles. Each activity involves the…

  18. Teaching Activities on Horizontal Nuclear Proliferation.

    ERIC Educational Resources Information Center

    Zola, John

    1990-01-01

    Provides learning activities concerning the horizontal proliferation of nuclear weapons. Includes step-by-step directions for four activities: (1) the life cycle of nuclear weapons; (2) nuclear nonproliferation: pros and cons; (3) the nuclear power/nuclear weapons connection; and (4) managing nuclear proliferation. (NL)

  19. Great Activities for Great Science Teaching.

    ERIC Educational Resources Information Center

    Weiner, Esther B.

    1993-01-01

    Presents hands-on spring science activities to help elementary students think and act like scientists. Students use the scientific process to make connections between life, physical, and earth science. Activities look at insects, flowers, trees, the sun, and the earth's rotation around the sun. (SM)

  20. Cost-Benefit Evaluation of Post-DVM Graduate Teaching Activities

    ERIC Educational Resources Information Center

    Wagner, Joseph E.; And Others

    1977-01-01

    The costs and benefits of teaching activities in two Research Animal Diagnostic and Invetigative Laboratories (RADILS) were identified and measured. The question addressed is whether public investments in RADIL teaching activities are justified. (LBH)

  1. Online multiple intelligence teaching tools (On-MITT) for enhancing interpersonal teaching activities

    NASA Astrophysics Data System (ADS)

    Mohamad, Siti Nurul Mahfuzah; Salam, Sazilah; Bakar, Norasiken; Sui, Linda Khoo Mei

    2014-07-01

    The theories of Multiple Intelligence (MI) used in this paper apply to students with interpersonal intelligence who is encouraged to work together in cooperative groups where interpersonal interaction is practiced. In this context, students used their knowledge and skills to help the group or partner to complete the tasks given. Students can interact with each other as they learn and the process of learning requires their verbal and non-verbal communication skills, co-operation and empathy in the group. Meanwhile educators can incorporate cooperative learning in groups in the classroom. On-MITT provides various tools to facilitate lecturers in preparing e-content that applies interpersonal intelligence. With minimal knowledge of Information and Technology (IT) skills, educators can produce creative and interesting teaching activities and teaching materials. The objective of this paper is to develop On-MITT prototype for interpersonal teaching activities. This paper addressed initial prototype of this study. An evaluation of On-MITT has been completed by 20 lecturers of Malaysian Polytechnics. Motivation Survey Questionnaire is used as the instrument to measure four motivation variables: ease of use, enjoyment, usefulness and self-confidence. Based on the findings, the On-MITT can facilitate educators to prepare teaching materials that are compatible for interpersonal learner.

  2. Teaching for Engagement: Part 2: Technology in the Service of Active Learning

    ERIC Educational Resources Information Center

    Hunter, William J.

    2015-01-01

    In the first piece in this series ("Teaching for Engagement: Part 1: Constructivist Principles, Case-Based Teaching, and Active Learning"), William Hunter sought to make the case that a wide range of teaching methods (e.g., case-based teaching, problem-based learning, anchored instruction) that share an intellectual grounding in…

  3. Influence of light guide tip used in the photo-activation on degree of conversion and hardness of one nanofilled dental composite

    NASA Astrophysics Data System (ADS)

    Galvão, M. R.; Costa, S. X. S.; Victorino, K. R.; Ribeiro, A. A.; Menezes, F. C. H.; Rastelli, A. N. S.; Bagnato, V. S.; Andrade, M. F.

    2010-12-01

    The aim of this study was to evaluate the degree of conversion and hardness of a dental composite resin Filtek™ Z-350 (3M ESPE, Dental Products St. Paul, MN) photo-activated for 20 s of irradiation time with two different light guide tips, metal and polymer, coupled on blue LED Ultraled LCU (Dabi Atlante, SP, Brazil). With the metal light tip, power density was of 352 and with the polymer was of 456 mW/cm2, respectively. Five samples (4 mm in diameter and 2mm in thickness—ISO 4049), were made for each Group evaluated. The measurements for DC (%) were made in a Nexus-470 FT-IR, Thermo Nicolet, E.U.A. Spectroscopy (FTIR). Spectra for both uncured and cured samples were analyzed using an accessory of reflectance diffuse. The measurements were recorded in absorbance operating under the following conditions: 32 scans, 4 cm-1 resolution, 300-4000 cm-1 wavelength. The percentage of unreacted carbon double bonds (% C=C) was determined from the ratio of absorbance intensities of aliphatic C=C (peak at 1637 cm-1) against internal standard before and after curing of the sample: aromatic C-C (peak at 1610 cm-1). The Vickers hardness measurements (top and bottom surfaces) were performed in a universal testing machine (Buehler MMT-3 digital microhardness tester Lake Bluff, Illinois USA). A 50 gf load was used and the indenter with a dwell time of 30 s. The data were submitted to the test t Student at significance level of 5%. The mean values of degree of conversion for the polymer and metal light guide tip no were statistically different ( p = 0.8389). The hardness mean values were no statistically significant different among the light guide tips ( p = 0.6244), however, there was difference between top and bottom surfaces ( p < 0.001). The results show that so much the polymer light tip as the metal light tip can be used for the photo-activation, probably for the low quality of the light guide tip metal.

  4. Using active engagement to teach leadership.

    PubMed

    Shanty, Joyce A; Gropelli, Theresa

    2014-12-01

    The current health care climate requires nurses to demonstrate leadership competencies. Incorporating leadership strategies into nursing continuing education is accomplished through methods such as role-play and clinical simulation activities. Simulation helps nurses to care for multiple patients, effectively delegate, consider quality and safety issues, and communicate effectively with health care team members.

  5. Disc Golf: Teaching a Lifetime Activity

    ERIC Educational Resources Information Center

    Eastham, Susan L.

    2015-01-01

    Disc golf is a lifetime activity that can be enjoyed by students of varying skill levels and abilities. Disc golf follows the principles of ball golf but is generally easier for students to play and enjoy success. The object of disc golf is similar to ball golf and involves throwing a disc from the teeing area to the target in as few throws as…

  6. Creative Activities for Teaching about the Environment.

    ERIC Educational Resources Information Center

    Stevens, Lawrence

    This unit contains activities dealing with wastes, the Greenhouse Effect, ozone depletion, energy, deforestation, and species extinction. Each section has a text to explain the issues and a crossword puzzle to reinforce the vocabulary. There are diagrams with questions that can be used as handouts or as transparency masters. (EH)

  7. Teaching Research Methodology through Active Learning

    ERIC Educational Resources Information Center

    Lundahl, Brad W.

    2008-01-01

    To complement traditional learning activities in a masters-level research methodology course, social work students worked on a formal research project which involved: designing the study, constructing measures, selecting a sampling strategy, collecting data, reducing and analyzing data, and finally interpreting and communicating the results. The…

  8. Nuclear Science Teaching Aids and Activities.

    ERIC Educational Resources Information Center

    Woodburn, John H.

    This publication is a sourcebook for science teachers. It provides guides for basic laboratory work in nuclear energy, suggesting various teacher and student demonstrations. Ideas for science clubs, science fairs, and project research seminars are presented. Problem-solving activities for both science and mathematics classes are included, as well…

  9. TECHNICAL NOTE: Active control for stress intensity of crack-tips under mixed mode by shape memory TiNi fiber epoxy composites

    NASA Astrophysics Data System (ADS)

    Shimamoto, A.; Zhao, H.; Azakami, T.

    2007-06-01

    The paper presented the effectiveness of a shape memory alloy hybrid composite. It was designed to actively suppress stress intensity in the vicinity of a crack-tip. A shape memory alloy (SMA) TiNi fiber reinforced epoxy composite was fabricated based on the proposed design concept and its material and mechanical properties were investigated by photoelastic examinations. The stress intensity factors, KI and KII, at a crack-tip decreased temperatures greater than Af under mixed mode. The phenomenon was caused by the recovery force of the TiNi fiber. The relationship of the stress intensity factors with the prestrain in the SMA fiber as well as with the ambient temperature in an isothermal furnace was clarified. On this basis, the active control for stress intensity by a shape memory composite was discussed.

  10. Science Teaching and Learning Activities and Students' Engagement in Science

    NASA Astrophysics Data System (ADS)

    Hampden-Thompson, Gillian; Bennett, Judith

    2013-06-01

    The purpose of this analysis is to describe the variation in students' reports of engagement in science across science teaching and learning activities. In addition, this study examines student and school characteristics that may be associated with students' levels of engagement in science. Data are drawn from the Programme for International Student Assessment 2006 study. The analysis employs a quantitative approach that includes descriptive and inferential statistics to examine three measures of student engagement for a nationally representative sample of approximately 12,000 15-year-old students in the UK. The main results indicate that there is an association between students' motivation towards science, enjoyment of science and future orientation towards science, and the frequency in which various teaching and learning activities take place in the classroom. Understanding student engagement in science and the factors that influence it is essential in addressing the issue of uptake of science after compulsory schooling.

  11. 2D simulation of active species and ozone production in a multi-tip DC air corona discharge

    NASA Astrophysics Data System (ADS)

    Meziane, M.; Eichwald, O.; Sarrette, J. P.; Ducasse, O.; Yousfi, M.

    2011-11-01

    The present paper shows for the first time in the literature a complete 2D simulation of the ozone production in a DC positive multi-tip to plane corona discharge reactor crossed by a dry air flow at atmospheric pressure. The simulation is undertaken until 1 ms and involves tens of successive discharge and post-discharge phases. The air flow is stressed by several monofilament corona discharges generated by a maximum of four anodic tips distributed along the reactor. The nonstationary hydrodynamics model for reactive gas mixture is solved using the commercial FLUENT software. During each discharge phase, thermal and vibrational energies as well as densities of radical and metastable excited species are locally injected as source terms in the gas medium surrounding each tip. The chosen chemical model involves 10 neutral species reacting following 24 reactions. The obtained results allow us to follow the cartography of the temperature and the ozone production inside the corona reactor as a function of the number of high voltage anodic tips.

  12. MIF Promotes Classical Activation and Conversion of Inflammatory Ly6Chigh Monocytes into TipDCs during Murine Toxoplasmosis

    PubMed Central

    Ruiz-Rosado, Juan de Dios; Olguín, Jonadab E.; Juárez-Avelar, Imelda; Saavedra, Rafael; Terrazas, Luis I.; Robledo-Avila, Frank H.; Vazquez-Mendoza, Alicia; Fernández, Jacquelina; Satoskar, Abhay R.; Partida-Sánchez, Santiago; Rodriguez-Sosa, Miriam

    2016-01-01

    Macrophage migration inhibitory factor (MIF) mediates immunity against Toxoplasma gondii infection by inducing inflammatory cytokines required to control the parasite replication. However, the role of this inflammatory mediator in the cell-mediated immune response against this infection is still poorly understood. Here, we used T. gondii-infected WT and Mif−/− mice to analyze the role of MIF in the maturation of CD11b+ and CD8α+ dendritic cells (DCs). We found that MIF promotes maturation of CD11b+ but not CD8α+ DCs, by inducing IL-12p70 production and CD86 expression. Infected Mif−/− mice showed significantly lower numbers of TNF and inducible nitric oxide synthase- (iNOS-) producing DCs (TipDCs) compared to infected WT mice. The adoptive transfer of Ly6Chigh monocytes into infected WT or Mif−/− mice demonstrated that MIF participates in the differentiation of Ly6Chigh monocytes into TipDCs. In addition, infected Mif−/− mice display a lower percentage of IFN-γ-producing natural killer (NK) cells compared to WT mice, which is associated with reducing numbers of TipDCs in Mif−/− mice. Furthermore, administration of recombinant MIF (rMIF) into T. gondii-infected Mif−/− mice restored the numbers of TipDCs and reversed the susceptible phenotype of Mif−/− mice. Collectively, these results demonstrate an important role for MIF inducing cell-mediated immunity to T. gondii infection. PMID:27057101

  13. Meta-Analysis of Group Learning Activities: Empirically Based Teaching Recommendations

    ERIC Educational Resources Information Center

    Tomcho, Thomas J.; Foels, Rob

    2012-01-01

    Teaching researchers commonly employ group-based collaborative learning approaches in Teaching of Psychology teaching activities. However, the authors know relatively little about the effectiveness of group-based activities in relation to known psychological processes associated with group dynamics. Therefore, the authors conducted a meta-analytic…

  14. NOTCH1 Inhibits Activation of ATM by Impairing the Formation of an ATM-FOXO3a-KAT5/Tip60 Complex.

    PubMed

    Adamowicz, Marek; Vermezovic, Jelena; d'Adda di Fagagna, Fabrizio

    2016-08-23

    The DNA damage response (DDR) signal transduction pathway is responsible for sensing DNA damage and further relaying this signal into the cell. ATM is an apical DDR kinase that orchestrates the activation and the recruitment of downstream DDR factors to induce cell-cycle arrest and repair. We have previously shown that NOTCH1 inhibits ATM activation upon DNA damage, but the underlying mechanism remains unclear. Here, we show that NOTCH1 does not impair ATM recruitment to DNA double-strand breaks (DSBs). Rather, NOTCH1 prevents binding of FOXO3a and KAT5/Tip60 to ATM through a mechanism in which NOTCH1 competes with FOXO3a for ATM binding. Lack of FOXO3a binding to ATM leads to the loss of KAT5/Tip60 association with ATM. Moreover, expression of NOTCH1 or depletion of ATM impairs the formation of the FOXO3a-KAT5/Tip60 protein complex. Finally, we show that pharmacological induction of FOXO3a nuclear localization sensitizes NOTCH1-driven cancers to DNA-damage-induced cell death. PMID:27524627

  15. EFL Teaching in the Amazon Region of Ecuador: A Focus on Activities and Resources for Teaching Listening and Speaking Skills

    ERIC Educational Resources Information Center

    Gonzalez, Paul F.; Ochoa, Cesar A.; Cabrera, Paola A.; Castillo, Luz M.; Quinonez, Ana L.; Solano, Lida M.; Espinosa, Franklin O.; Ulehlova, Eva; Arias, Maria O.

    2015-01-01

    Research on teaching listening and speaking skills has been conducted at many levels. The purpose of this study was to analyze the current implementation of classroom and extracurricular activities, as well as the use of educational resources for teaching both skills in public senior high schools in the Amazon region of Ecuador, particularly in…

  16. Using Kinesthetic Activities to Teach Ptolemaic and Copernican Retrograde Motion

    NASA Astrophysics Data System (ADS)

    Richards, Ted

    2012-06-01

    This paper describes a method for teaching planetary retrograde motion, and the Ptolemaic and Copernican accounts of retrograde motion, by means of a series kinesthetic learning activities (KLAs). In the KLAs described, the students literally walk through the motions of the planets in both systems. A retrospective statistical analysis shows that students who participated in these activities performed better on examination questions pertaining to retrograde motion than students who did not. Potential explanations for this result, including the breaking of classroom routine, the effect of body movement on conceptual memory, and egocentric spatial proprioception, are considered.

  17. Teaching with Data: Resources for Designing Effective Activities

    NASA Astrophysics Data System (ADS)

    Manduca, C. A.; Mogk, D. W.

    2004-12-01

    Faculty and teachers understand the power of engaging students directly with data and are tremendously enthusiastic about the possibilities of incorporating data-rich activities in their teaching. This enthusiasm reflects the desire to empower students to solve problems, to place learning in an exciting and authentic real world context that motivates learning, and to illuminate students' understanding of the nature of science. Data-rich activities provide abundant opportunities to motivate students to engage in learning, to integrate learning of facts and skills, and to build on prior knowledge. These are all factors that are identified by research as fundamental to the learning process (How People Learn, 1999, NRC). Data-rich activities can place learning in a context that enhances students' ability to use information in new situations. Seismological data offer many opportunities due to students' familiarity with and interest in earthquakes, and its use to probe the internal structure of the Earth. Three of the most challenging aspects of teaching with data are 1) presenting data with analysis tools that can be quickly mastered, 2) designing learning activities to match the level of student expertise with data analysis and critical thinking, and 3) creating assessments that capture learning beyond factual recall. The Using Data in the Classroom website (serc.carleton.edu/usingdata) helps faculty excel at teaching with data by providing easy access to a wide range of data, discussion of the ways in which data can be effectively used in the classroom, examples of data-rich activities at a variety of educational levels across a range of geoscience topics, and references to pedagogic information. The Earth Exploration Toolbook (serc.Carleton.edu/eet) supports teachers' use of particular datasets and tools by providing step-by-step instructions in the context of an example. The Investigating Earthquakes chapter focuses specifically on use of GIS to analyze USGS

  18. Remembering tips

    MedlinePlus

    ... As you age, it becomes harder for your brain to create a new memory, even while you can remember actions and events ... This helps keep the nerve cells in the brain active, which is very ... them about your memory problems, so they know how to help. If ...

  19. Classroom Tips.

    ERIC Educational Resources Information Center

    Stevens, Jacqueline; And Others

    1993-01-01

    Describes five classroom activities or projects used in Canadian social studies classes. Includes discussions of the use of artifacts, a field trip to Spain, a simulation of the Earth Summit meeting, and the application of mahatma Gandhi's philosophy to current problems. (CFR)

  20. 78 FR 14083 - Agency Information Collection Activities: Direct Loan, FFEL, Perkins and TEACH Grant Total and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ... Agency Information Collection Activities: Direct Loan, FFEL, Perkins and TEACH Grant Total and Permanent... TEACH Grant Total and Permanent Disability Discharge Forms. OMB Control Number: 1845-0065. Type of... Loan, FFEL, or Perkins loan program loans, or TEACH Grant service obligation. The form collects...

  1. A protein array screen for Kaposi's sarcoma-associated herpesvirus LANA interactors links LANA to TIP60, PP2A activity, and telomere shortening.

    PubMed

    Shamay, Meir; Liu, Jianyong; Li, Renfeng; Liao, Gangling; Shen, Li; Greenway, Melanie; Hu, Shaohui; Zhu, Jian; Xie, Zhi; Ambinder, Richard F; Qian, Jiang; Zhu, Heng; Hayward, S Diane

    2012-05-01

    The Kaposi's sarcoma-associated herpesvirus (KSHV) LANA protein functions in latently infected cells as an essential participant in KSHV genome replication and as a driver of dysregulated cell growth. To identify novel LANA protein-cell protein interactions that could contribute to these activities, we performed a proteomic screen in which purified, adenovirus-expressed Flag-LANA protein was incubated with an array displaying 4,192 nonredundant human proteins. Sixty-one interacting cell proteins were consistently detected. LANA interactions with high-mobility group AT-hook 1 (HMGA1), HMGB1, telomeric repeat binding factor 1 (TRF1), xeroderma pigmentosum complementation group A (XPA), pygopus homolog 2 (PYGO2), protein phosphatase 2A (PP2A)B subunit, Tat-interactive protein 60 (TIP60), replication protein A1 (RPA1), and RPA2 proteins were confirmed in coimmunoprecipitation assays. LANA-associated TIP60 retained acetyltransferase activity and, unlike human papillomavirus E6 and HIV-1 TAT proteins, LANA did not reduce TIP60 stability. The LANA-bound PP2A B subunit was associated with the PP2A A subunit but not the catalytic C subunit, suggesting a disruption of PP2A phosphatase activity. This is reminiscent of the role of simian virus 40 (SV40) small t antigen. Chromatin immunoprecipitation (ChIP) assays showed binding of RPA1 and RPA2 to the KSHV terminal repeats. Interestingly, LANA expression ablated RPA1 and RPA2 binding to the cell telomeric repeats. In U2OS cells that rely on the alternative mechanism for telomere maintenance, LANA expression had minimal effect on telomere length. However, LANA expression in telomerase immortalized endothelial cells resulted in telomere shortening. In KSHV-infected cells, telomere shortening may be one more mechanism by which LANA contributes to the development of malignancy. PMID:22379092

  2. Managing Tips for Teachers of the Gifted.

    ERIC Educational Resources Information Center

    Hays, Betsy Bauer; Conley, Jane Bauer

    1993-01-01

    Ten tips are provided to help teachers of gifted students cope with the unique stressors that they face. Tips include making parents allies, putting grades in perspective, and setting realistic goals. Activities are presented for use as introductory "ice-breakers" or concluding activities for workshops for teachers and parents of gifted students.…

  3. Diet and Exercise Tips

    MedlinePlus

    ... Health News & Publications Annual Meeting Calendar Diet and Exercise Tips Diet and Exercise Tips News media interested in covering the latest ... Health Statistics concludes that 35 percent of adults exercise regularly (more than 6 of 10 don’t), ...

  4. Teaching Plate Tectonic Concepts using GeoMapApp Learning Activities

    NASA Astrophysics Data System (ADS)

    Goodwillie, A. M.; Kluge, S.

    2012-12-01

    GeoMapApp Learning Activities ( http://serc.carleton.edu/geomapapp/collection.html ) can help educators to expose undergraduate students to a range of earth science concepts using high-quality data sets in an easy-to-use map-based interface called GeoMapApp. GeoMapApp Learning Activities require students to interact with and analyse research-quality geoscience data as a means to explore and enhance their understanding of underlying content and concepts. Each activity is freely available through the SERC-Carleton web site and offers step-by-step student instructions and answer sheets. Also provided are annotated educator versions of the worksheets that include teaching tips, additional content and suggestions for further work. The activities can be used "off-the-shelf". Or, since the educator may require flexibility to tailor the activities, the documents are provided in Word format for easy modification. Examples of activities include one on the concept of seafloor spreading that requires students to analyse global seafloor crustal age data to calculate spreading rates in different ocean basins. Another activity has students explore hot spots using radiometric age dating of rocks along the Hawaiian-Emperor seamount chain. A third focusses upon the interactive use of contours and profiles to help students visualise 3-D topography on 2-D computer screens. A fourth activity provides a study of mass wasting as revealed through geomorphological evidence. The step-by-step instructions and guided inquiry approach reduce the need for teacher intervention whilst boosting the time that students can spend on productive exploration and learning. The activities can be used, for example, in a classroom lab with the educator present and as self-paced assignments in an out-of-class setting. GeoMapApp Learning Activities are funded through the NSF GeoEd program and are aimed at students in the introductory undergraduate, community college and high school levels. The activities are

  5. Child Transportation Safety Tips.

    ERIC Educational Resources Information Center

    National Highway Traffic Safety Administration (DOT), Washington, DC.

    This document presents nine tips regarding safe infant and child transportation, each tip explained in one to two pages. The tips are as follows: (1) quick safety seat checkup; (2) where should your child ride? (3) how to protect your new baby in the car; (4) what safety seat to use for a big baby or toddler? (5) how should preschool and school…

  6. Strategies to Address Common Challenges When Teaching in an Active Learning Classroom

    ERIC Educational Resources Information Center

    Petersen, Christina I.; Gorman, Kristen S.

    2014-01-01

    This chapter provides practical strategies for addressing common challenges that arise for teachers in active learning classrooms. Our strategies come from instructors with experience teaching in these environments.

  7. Active versus Passive Teaching Styles: An Empirical Study of Student Learning Outcomes

    ERIC Educational Resources Information Center

    Michel, Norbert; Cater, John James, III; Varela, Otmar

    2009-01-01

    This study compares the impact of an active teaching approach and a traditional (or passive) teaching style on student cognitive outcomes. Across two sections of an introductory business course, one class was taught in an active or nontraditional manner, with a variety of active learning exercises. The second class was taught in a passive or…

  8. 8 Assessment Tips: Easy to Implement Ideas for Thematic Units

    ERIC Educational Resources Information Center

    Porello, Eugenia

    2006-01-01

    In this article, the author outlines and describes eight assessment tips for language thematic Units. The tips include: (1) Knowing where you are going (creation of appropriate assessment tools); (2) Having a Plan (setting your communication and language goals); (3) Mapping it Out (teaching in the same way you will assess students); (4) Testing…

  9. Patient Activated Care for Rural Elderly. A Program Development and Teaching Guide for Planners, Facilitators, and Coordinators.

    ERIC Educational Resources Information Center

    Gaarder, Lorin R.; Cohen, Saul

    This guide is an outline for developing and presenting programs in self health care for senior citizens. The guide is presented in two sections. The first section provides background information about elderly self-care and tips on teaching it and developing a program. Sample letters to prospective enrollees and sample news releases are included.…

  10. Arctic climate tipping points.

    PubMed

    Lenton, Timothy M

    2012-02-01

    There is widespread concern that anthropogenic global warming will trigger Arctic climate tipping points. The Arctic has a long history of natural, abrupt climate changes, which together with current observations and model projections, can help us to identify which parts of the Arctic climate system might pass future tipping points. Here the climate tipping points are defined, noting that not all of them involve bifurcations leading to irreversible change. Past abrupt climate changes in the Arctic are briefly reviewed. Then, the current behaviour of a range of Arctic systems is summarised. Looking ahead, a range of potential tipping phenomena are described. This leads to a revised and expanded list of potential Arctic climate tipping elements, whose likelihood is assessed, in terms of how much warming will be required to tip them. Finally, the available responses are considered, especially the prospects for avoiding Arctic climate tipping points.

  11. Student Teachers' Participation in Learning Activities and Effective Teaching Behaviours

    ERIC Educational Resources Information Center

    de Vries, Siebrich; Jansen, Ellen P. W. A.; Helms-Lorenz, Michelle; van de Grift, Wim J. C. M.

    2015-01-01

    Teacher learning is essential to the teaching profession, because it has been strongly linked to improved teaching practices and teacher quality. The source for teacher learning is initial teacher education, a crucial phase in the learning-to-teach continuum. To gain insight into this influential period for student teachers' long-term professional…

  12. Medical Errors: Tips to Help Prevent Them

    MedlinePlus

    ... to Web version Medical Errors: Tips to Help Prevent Them Medical Errors: Tips to Help Prevent Them Medical errors are one of the nation's ... single most important way you can help to prevent errors is to be an active member of ...

  13. Implementing Distance Teaching at a Large Scale in Medical Education: A Struggle between Dominant and Non-Dominant Teaching Activities

    ERIC Educational Resources Information Center

    Pettersson, Fanny; Olofsson, Anders D.

    2015-01-01

    This paper examines possibilities and challenges when implementing distance teaching of theoretical content in a regionalized medical program (RMP). It will be argued that Cultural-Historical Activity Theory (CHAT) and the concepts of dominant and non-dominant activities, including conflicts and transitional actions, can lead to an understanding…

  14. Twelve tips for the effective use of videos in medical education.

    PubMed

    Dong, Chaoyan; Goh, Poh Sun

    2015-02-01

    Videos can promote learning by either complementing classroom activities, or in self-paced online learning modules. Despite the wide availability of online videos in medicine, it can be a challenge for many educators to decide when videos should be used, how to best use videos, and whether to use existing videos or produce their own. We outline 12 tips based on a review of best practices in curriculum design, current research in multimedia learning and our experience in producing and using educational videos. The 12 tips review the advantages of using videos in medical education, present requirements for teachers and students, discuss how to integrate video into a teaching programme, and describe technical requirements when producing one's own videos. The 12 tips can help medical educators use videos more effectively to promote student engagement and learning.

  15. Educational Activities At The Nuclear Engineering Teaching Laboratory

    NASA Astrophysics Data System (ADS)

    Tipping, Tracy N.

    2011-06-01

    The Nuclear Engineering Teaching Laboratory (NETL) at the University of Texas at Austin performs a wide variety of educational activities for students at various levels. Regular on-site courses in the areas of health physics, radiochemistry, and reactor operations are offered for university credit. Along with on-site courses, access to the reactor facility via a remote console connection allows students in an off-site classroom to conduct experiments via a "virtual" control console. In addition to the regularly scheduled courses, other programs, such as the Nuclear Regulatory Commission Summer Nuclear Engineering Institute and Office of Naval Research partnerships with Historically Black Colleges and Universities, provide access to the facility for students from other universities both domestic and foreign. And NETL hosts professional development programs such as training programs for Nuclear Regulatory Commission personnel and International Atomic Energy Agency fellowships.

  16. The Jar Magic -- Instructional Activities for Teaching Air Pressure

    NASA Astrophysics Data System (ADS)

    Ku, Bing-Hong; Chen, Chyong-Sun

    2013-12-01

    There are a variety of impressive activities designed for teaching the concept of air pressure to junior high school students. Water, glasses, balloons, plastic bottles, and suction cups are some of the items commonly used in these experiments. For example, if we take a glass of water, cover it with a piece of cardboard, and invert the glass, amazingly, no water spills out. Further, one may also use balloons and plastic bottles as the components in another experiment. Place a balloon in a plastic bottle and spread the balloon's mouth over the bottle's rim. Inflate the balloon by blowing into it. Students will be astonished at the fact that the balloon remains inflated even though its mouth is open. Making suction cups "stick" to the wall is also an instance of proving how air pressure works.

  17. Teaching Graduate Students about Social Class: Using a Classifying Activity with an Inductive Approach

    ERIC Educational Resources Information Center

    Chennault, Ronald E.

    2010-01-01

    Teaching about social class holds special significance for students who will work in the fields of education and human services. In this article, the author describes how he teaches graduate students about social class using a classifying activity with an inductive approach. He follows this activity with a discussion of course readings that take a…

  18. The Effectiveness of Active and Traditional Teaching Techniques in the Orthopedic Assessment Laboratory

    ERIC Educational Resources Information Center

    Nottingham, Sara; Verscheure, Susan

    2010-01-01

    Active learning is a teaching methodology with a focus on student-centered learning that engages students in the educational process. This study implemented active learning techniques in an orthopedic assessment laboratory, and the effects of these teaching techniques. Mean scores from written exams, practical exams, and final course evaluations…

  19. Collective Digital Storytelling: An Activity-Theoretical Analysis of Second Language Learning and Teaching

    ERIC Educational Resources Information Center

    Kalyaniwala-Thapliyal, Carmenne

    2016-01-01

    This paper describes the collective activity of a group of four students who created a digital story as a teaching resource that was to be used for teaching English as a foreign language. It uncovers and analyzes the actual processes underlining the activity as it unfolds from one stage to another. Four processes, viz., sociocognitive…

  20. Primary Games: Experiential Learning Activities for Teaching Children K-8. The Jossey-Bass Education Series.

    ERIC Educational Resources Information Center

    Sugar, Steve; Sugar, Kim Kostoroski

    This book offers a collection of games for K-8 students that will enliven instruction, boost student motivation, and enhance learning at school or at home. It features in- and out-of-desk activities to motivate and engage students, promote teamwork, build skills, and enhance interactive problem solving. The book includes hundreds of tips on how to…

  1. Teaching for Engagement: Part 1--Constructivist Principles, Case-Based Teaching, and Active Learning

    ERIC Educational Resources Information Center

    Hunter, Bill

    2015-01-01

    In the Winter, 2015, issue of the "College Quarterly," Donovan McFarlane provided some guidelines for the use of case studies in college teaching based in part on his own experience and in part on the published literature. This was not the first time that case-based teaching was the focus of work in the "College Quarterly."…

  2. Teaching Astronomy with an Inquiry Activity on Stellar Populations

    NASA Astrophysics Data System (ADS)

    Rafelski, M.; Foley, M.; Graves, G. J.; Kretke, K. A.; Mills, E.; Nassir, M.; Patel, S.

    2010-12-01

    We describe a new inquiry design aimed at teaching advanced high-school to senior college students the basics of stellar populations. The inquiry is designed to have students come up with their own version of the Hertzsprung-Russell diagram as a tool to understand how stars evolve based on their color, mass, and luminosity. The inquiry makes use of pictures and spectra of stars, which the students analyze and interpret to answer the questions they come up with at the beginning. The students undergo a similar experience to real astronomers, using the same tools and methods to figure out the phenomena they are trying to understand. Specifically, they use images and spectra of stars, and organize the data via tables and plots to find trends that will then enable them to answer their questions. The inquiry also includes a "thinking tool" to help connect the trends students observe to the larger picture of stellar evolution. We include a description of the goals of the inquiry, the activity description, the motivations and thoughts that went into the design of the inquiry, and reflections on how the inquiry activity worked in practice.

  3. Balancing Online Teaching Activities: Strategies for Optimizing Efficiency and Effectiveness

    ERIC Educational Resources Information Center

    Raffo, Deana M.; Brinthaupt, Thomas M.; Gardner, Justin G.; Fisher, Lawanna S.

    2015-01-01

    Increased demands in professional expectations have required online faculty to learn how to balance multiple roles in an open-ended, changing, and relatively unstructured job. In this paper, we argue that being strategic about one's balance of the various facets of online teaching will improve one's teaching efficiency and effectiveness. We…

  4. Teaching Activities for Defensive Living and Emergency Preparedness. Education Modules.

    ERIC Educational Resources Information Center

    Peterson, Grit, Ed.; And Others

    Designed for teaching a generalized program in emergency preparedness education, the eight units of the manual can be used together or alone in any course that teaches human response to emergency preparedness or in physical education, recreation, health, biology, physiology, or science classes. The guide includes an introduction and seven major…

  5. ADHD: Tips to Try

    MedlinePlus

    ... How Can I Help a Friend Who Cuts? ADHD: Tips to Try KidsHealth > For Teens > ADHD: Tips to Try Print A A A Text Size en español TDAH: Consejos que puedes probar ADHD , or attention deficit hyperactivity disorder, is a medical ...

  6. Total Telephone Tips.

    ERIC Educational Resources Information Center

    Corder, Lloyd E.; And Others

    This manual of telephone behavior tips for business and sales professionals offers ways to handle the disgruntled caller and makes suggestions on topics relevant to the telephone. The manual is divided into the following sections and subsections: (1) Common Courtesy (staff tips, answering the telephone, screening calls, transferring calls, taking…

  7. Air Travel Health Tips

    MedlinePlus

    MENU Return to Web version Air Travel Health Tips Air Travel Health Tips How can I improve plane travel? Most people don't have any problems when ... and dosages of all of your medicines. The air in airplanes is dry, so drink nonalcoholic, decaffeinated ...

  8. [Over projected tip].

    PubMed

    Duron, J-B; Nguyen, P S; Levet, Y; Bardot, J; Aiach, G

    2014-12-01

    Overprojected tip is a pretty usual request not easy to manage. Preop analysis is crucial in order to evaluate tip support and skin thickness and ability to retract. For example, if the skin is very thick and has poor chance to retract, the surgeon should be very careful in the tip projection decreasing to avoid a skin pollybeak deformity. In such cases, he has to analyze the facial proportions, especially other areas projection (radix, dorsum and chin) and think about augmenting them to balance the profile rather than decreasing tip projection. Correction should always be conducted incrementally, starting with weakening the tip support mechanisms and, only if necessary, continue with alar cartilage interruption. This can be performed on many areas (lateral cruras, domes, medial cruras) and with several techniques (resection or interruption+overlapping).

  9. The Micro TIPS - Cases - Programmed Learning Course Package.

    ERIC Educational Resources Information Center

    Heriot-Watt Univ., Edinburgh (Scotland). Esmee Fairbairn Economics Research Centre.

    Part of an economic education series, the course package is designed to teach basic concepts and principles of microeconomics and how they can be applied to various world problems. For use with college students, learning is gained through lectures, tutorials, textbooks, programmed text, cases, and TIPS (Teaching Information Processing System).…

  10. Microsituations as an Active-Learning Tool To Teach Endocrine Pharmacology and Problem-Solving Skills.

    ERIC Educational Resources Information Center

    Brandt, Barbara F.; Lubawy, William C.

    1998-01-01

    Microsituations teaching is a case-based, active learning tool developed from cognitive learning theory to teach problem-solving skills to large classes while conserving faculty and other resources. Since implementing this method in an endocrine pharmacology course at the University of Kentucky, student performance on problem-solving examinations…

  11. The Bourgeoisie Dream Factory: Teaching Marx's Theory of Alienation through an Experiential Activity

    ERIC Educational Resources Information Center

    Windsor, Elroi J.; Carroll, Alana M.

    2015-01-01

    Effectively teaching sociological theories to undergraduate students is challenging. Students often enroll in theory courses due to major requirements, not personal interest. Consequently, many students approach the study of theory with anxiety. This study examined the effectiveness of an experiential learning activity designed to teach Karl…

  12. Social Studies Education as a Moral Activity: Teaching towards a Just Society

    ERIC Educational Resources Information Center

    Byrd, Daniel

    2012-01-01

    Many competing ideas exist around teaching "standard" high school social studies subjects such as history, government, geography, and economics. The purpose of this paper is to explore the potential of social studies teaching and learning as a moral activity. I first propose that current high school curriculum standards in the United States often…

  13. TEACHING ENGLISH TO SPEAKERS OF OTHER LANGUAGES, UNITED STATES ACTIVITIES--1966.

    ERIC Educational Resources Information Center

    MCARDLE, LOIS

    THIS REPORT ON NEW PROGRAMS AND ON SIGNIFICANT DEVELOPMENTS IN ONGOING PROGRAMS WAS PREPARED FOR THE INTERNATIONAL CONFERENCE ON SECOND LANGUAGE PROBLEMS (8TH, HEIDELBERG, GERMANY, APRIL 26-29, 1967). PROGRAMS LISTED ARE (1) GENERAL ACTIVITIES, (2) ENGLISH LANGUAGE TEACHING AND TEACHER TRAINING OVERSEAS, (3) ENGLISH LANGUAGE TEACHING AND TEACHER…

  14. Teaching Children To Love: 80 Games & Fun Activities for Raising Balanced Children in Unbalanced Times.

    ERIC Educational Resources Information Center

    Childre, Doc Lew; Paddison, Sara Hatch, Ed.

    Raising children in today's fast-paced society requires love and technique. Ways that parents can teach children to love, teach them values, and help them balance their lives are discussed in this activity book. The text opens with a discussion of heart intelligence (what is sometimes equated with emotional intelligence). Heart intelligence…

  15. Teaching and Learning Activities in Chilean Classrooms: Is ICT Making a Difference?

    ERIC Educational Resources Information Center

    Hinostroza, J. Enrique; Labbe, Christian; Brun, Mario; Matamala, Carolina

    2011-01-01

    This paper presents the results of the analysis of teaching and learning activities in state subsidized schools in Chile. The study is based on the data collected through a national survey applied to all state subsidized schools (census) and a sample of private schools and examines teachers' and students' reported teaching and learning activities…

  16. Factors of Participants and Blogs That Predict Blogging Activeness during Teaching Practice and Induction Year

    ERIC Educational Resources Information Center

    Luik, Piret; Taimalu, Merle

    2016-01-01

    The blog as a type of social software has been used in education for several years, and its positive effect in the field has been asserted in many studies. This study presents the factors of participants and blogs that predict blogging activeness during teaching practice and induction year. During the teaching practice and induction year all…

  17. Incorporating a Video-Editing Activity in a Reflective Teaching Course for Preservice Teachers

    ERIC Educational Resources Information Center

    Fadde, Peter J.; Aud, Susan; Gilbert, Sharon

    2009-01-01

    Research and practice going back to the 1960s support the use of videotaping to facilitate preservice teachers' development of reflective teaching skills. Emerging research suggests that additional video-based activities, including editing video vignettes of teaching, can deepen preservice teachers' reflection. This action research study describes…

  18. How My Daughter Taught Me to Teach: The Importance of Active Communication

    ERIC Educational Resources Information Center

    Hunt-Gierut, Deborah

    2011-01-01

    In this article, the author shares how her daughter, who was diagnosed with a profound hearing loss when she was a year old, taught her to teach, and demonstrates the importance of active communication. Teaching her daughter English as her second language has posed many challenges, but has also revealed successful strategies that the author has…

  19. THE TEACHING OF ENGLISH AS A SECOND OR FOREIGN LANGUAGE, BRITISH ACTIVITIES 1967/68.

    ERIC Educational Resources Information Center

    British Council, London (England).

    THIS REPORT HAS BEEN COMPILED FROM VARIOUS SOURCES BY THE ENGLISH-TEACHING INFORMATION CENTRE OF THE BRITISH COUNCIL FOR THE NINTH INTERNATIONAL CONFERENCE ON SECOND LANGUAGE PROBLEMS, HELD IN TUNIS, APRIL 1968. (SEE "TEACHING ENGLISH TO SPEAKERS OF OTHER LANGUAGES, UNITED STATES ACTIVITIES--1967," PUBLISHED BY THE CENTER FOR APPLIED LINGUISTICS.)…

  20. "Who Do You Talk to about Your Teaching?": Networking Activities among University Teachers

    ERIC Educational Resources Information Center

    Pataraia, Nino; Falconer, Isobel; Margaryan, Anoush; Littlejohn, Allison; Fincher, Sally

    2014-01-01

    As the higher education environment changes, there are calls for university teachers to change and enhance their teaching practices to match. Networking practices are known to be deeply implicated in studies of change and diffusion of innovation, yet academics' networking activities in relation to teaching have been little studied. This paper…

  1. Student Reciprocal Peer Teaching as a Method for Active Learning: An Experience in an Electrotechnical Laboratory

    ERIC Educational Resources Information Center

    Muñoz-García, Miguel A.; Moreda, Guillermo P.; Hernández-Sánchez, Natalia; Valiño, Vanesa

    2013-01-01

    Active learning is one of the most efficient mechanisms for learning, according to the psychology of learning. When students act as teachers for other students, the communication is more fluent and knowledge is transferred easier than in a traditional classroom. This teaching method is referred to in the literature as reciprocal peer teaching. In…

  2. Economics of tipping the climate dominoes

    NASA Astrophysics Data System (ADS)

    Lemoine, Derek; Traeger, Christian P.

    2016-05-01

    Greenhouse gas emissions can trigger irreversible regime shifts in the climate system, known as tipping points. Multiple tipping points affect each other’s probability of occurrence, potentially causing a `domino effect’. We analyse climate policy in the presence of a potential domino effect. We incorporate three different tipping points occurring at unknown thresholds into an integrated climate-economy model. The optimal emission policy considers all possible thresholds and the resulting interactions between tipping points, economic activity, and policy responses into the indefinite future. We quantify the cost of delaying optimal emission controls in the presence of uncertain tipping points and also the benefit of detecting when individual tipping points have been triggered. We show that the presence of these tipping points nearly doubles today’s optimal carbon tax and reduces peak warming along the optimal path by approximately 1 °C. The presence of these tipping points increases the cost of delaying optimal policy until mid-century by nearly 150%.

  3. Round Window Membrane Implantation with an Active Middle Ear Implant: A Study of the Effects on the Performance of Round Window Exposure and Transducer Tip Diameter in Human Cadaveric Temporal Bones

    PubMed Central

    Tringali, Stéphane; Koka, Kanthaiah; Deveze, Arnaud; Holland, N. Julian; Jenkins, Herman A.; Tollin, Daniel J.

    2010-01-01

    Objectives To assess the importance of 2 variables, transducer tip diameter and resection of the round window (RW) niche, affecting the optimization of the mechanical stimulation of the RW membrane with an active middle ear implant (AMEI). Materials and Methods: Ten temporal bones were prepared with combined atticotomy and facial recess approach to expose the RW. An AMEI stimulated the RW with 2 ball tip diameters (0.5 and 1.0 mm) before and after the resection of the bony rim of the RW niche. The RW drive performance, assessed by stapes velocities using laser Doppler velocimetry, was analyzed in 3 frequency ranges: low (0.25–1 kHz), medium (1–3 kHz) and high (3–8 kHz). Results Driving the RW produced mean peak stapes velocities (HEV) of 0.305 and 0.255 mm/s/V at 3.03 kHz, respectively, for the 1- and 0.5-mm tips, with the RW niche intact. Niche drilling increased the HEV to 0.73 and 0.832 mm/s/V for the 1- and 0.5-mm tips, respectively. The tip diameter produced no difference in output at low and medium frequencies; however, the 0.5-mm tip was 5 and 6 dB better than the 1-mm tip at high frequencies before and after niche drilling, respectively. Drilling the niche significantly improved the output by 4 dB at high frequencies for the 1-mm tip, and by 6 and 10 dB in the medium- and high-frequency ranges for the 0.5-mm tip. Conclusion The AMEI was able to successfully drive the RW membrane in cadaveric temporal bones using a classical facial recess approach. Stimulation of the RW membrane with an AMEI without drilling the niche is sufficient for successful hearing outputs. However, the resection of the bony rim of the RW niche significantly improved the RW stimulation at medium and higher frequencies. Drilling the niche enhances the exposure of the RW membrane and facilitates positioning the implant tip. PMID:20150727

  4. Contribution of the Activities Diary to the pediatric teaching

    PubMed Central

    Fernandes, Vitor de Almeida; Scucuglia, Ana Cláudia B.; T.Gonsaga, Ricardo Alessandro; Biscegli, Terezinha Soares

    2013-01-01

    OBJECTIVE To describe the fifth-year medical students' self-evaluation based on the reflexive discourse of the Activities Diaries (portfolio) from the Pediatric Internship I and Child Care Rotations. METHODS Cross sectional, qualitative and descriptive study using the collective subject discourse of the diaries used during the internship of the Medical School, in Catanduva, São Paulo, from January to November, 2011. The registered students' testimonials in the portfolio sections called self-assessment and students' impression were assessed according to their central ideas (discipline organization, breastfeeding outpatient clinic, number of admissions in the pediatric hospital ward and satisfaction with the Child Health training ), related to the teaching of Pediatrics and Child Care. The portfolios with incomplete registers were excluded. RESULTS The testimonials of 47 interns (75% of the students) were analyzed, and 21.3% of them expressed satisfaction with the discipline organization and 27.7% praised the inclusion of the breastfeeding outpatient clinics in the course. For 25.5% of the academics, the number of admissions in the pediatric wards was insufficient for an ideal learning; however, 70.2% were satisfied with the Child Health training. CONCLUSIONS This critical analysis allowed a summary of the reflections, suggestions and critics registered by the interns and can be used as a tool for improvement of the professional cycle. PMID:24142320

  5. A simple wavelength division multiplexing system for active learning teaching

    NASA Astrophysics Data System (ADS)

    Zghal, Mourad; Ghalila, Hassen; Ben Lakhdar, Zohra

    2009-06-01

    The active learning project consists in a series of workshops for educators, researchers and students and promotes an innovative method of teaching physics using simple, inexpensive materials that can be fabricated locally. The objective of the project is to train trainers and inspire students to learn physics. The workshops are based on the use of laboratory work and hands-on activities in the classroom. The interpretation of these experiments is challenging for some students, and the experiments can lead to a significant amount of discussion. The workshops are organized within the framework of the project ``Active Learning in Optics and Photonics" (ALOP) mainly funded by UNESCO, with the support of ICTP (Abdus Salam International Centre for Theoretical Physics) and SPIE. ALOP workshops offer high school, college or university physics teachers the opportunity to improve their conceptual understanding of optics. These workshops usually run for five days and cover several of the topics usually found in any introductory university physics program. Optics and photonics are used as subject matter because it is relevant as well as adaptable to research and educational conditions in many developing countries [1]. In this paper, we will mainly focus on a specific topic of the ALOP workshops, namely optical communications and Wavelength Division Multiplexing technology (WDM). This activity was originally developed by Mazzolini et al [2]. WDM is a technology used in fibre-optic communications for transmitting two or more separate signals over a single fibre optic cable by using a separate wavelength for each signal. Multiple signals are carried together as separate wavelengths of light in a multiplexed signal. Simple and inexpensive WDM system was implemented in our laboratory using light emitting diodes or diode lasers, plastic optical fibres, a set of optical filters and lenses, prism or grating, and photodiodes. Transmission of audio signals using home-made, simple

  6. Teaching Outside the (Cereal) Box: A Molecular Genetics Activity.

    ERIC Educational Resources Information Center

    Byrd, Jeffrey J.

    2000-01-01

    Describes a method for teaching about DNA using looped cereals. Outlines the procedure and concept in detail. Presents several possible concepts that allow the instructor to choose what is the most appropriate for students. (SAH)

  7. Rutherford's Enlarged: A Content-Embedded Activity To Teach about Nature of Science.

    ERIC Educational Resources Information Center

    Abd-El-Khalick, Fouad

    2002-01-01

    Describes an activity that can be used to help middle and secondary school students develop more informed understandings of some important aspects of the nature of science in the context of teaching Rutherford's experiments and atomic structure. (Author/MM)

  8. Impact of a novel teaching method based on feedback, activity, individuality and relevance on students’ learning

    PubMed Central

    Brooks, William S.; Laskar, Simone N.; Benjamin, Miles W.; Chan, Philip

    2016-01-01

    Objectives This study examines the perceived impact of a novel clinical teaching method based on FAIR principles (feedback, activity, individuality and relevance) on students’ learning on clinical placement. Methods This was a qualitative research study. Participants were third year and final year medical students attached to one UK vascular firm over a four-year period (N=108). Students were asked to write a reflective essay on how FAIRness approach differs from previous clinical placement, and its advantages and disadvantages. Essays were thematically analysed and globally rated (positive, negative or neutral) by two independent researchers. Results Over 90% of essays reported positive experiences of feedback, activity, individuality and relevance model.  The model provided multifaceted feedback; active participation; longitudinal improvement; relevance to stage of learning and future goals; structured teaching; professional development; safe learning environment; consultant involvement in teaching. Students perceived preparation for tutorials to be time intensive for tutors/students; a lack of teaching on medical sciences and direct observation of performance; more than once weekly sessions would be beneficial; some issues with peer and public feedback, relevance to upcoming exam and large group sizes. Students described negative experiences of “standard” clinical teaching. Conclusions Progressive teaching programmes based on the FAIRness principles, feedback, activity, individuality and relevance, could be used as a model to improve current undergraduate clinical teaching. PMID:26995588

  9. Baby Boy Jones Interactive Case-Based Learning Activity: A Web-Delivered Teaching Strategy.

    PubMed

    Cleveland, Lisa M; Carmona, Elenice Valentim; Paper, Bruce; Solis, Linda; Taylor, Bonnie

    2015-01-01

    Faced with limited resources, nurse educators are challenged with transforming nursing education while preparing enough qualified nurses to meet future demand; therefore, innovative approaches to teaching are needed. In this article, we describe the development of an innovative teaching activity. Baby Boy Jones is a Web-delivered, case-based learning activity focused on neonatal infection. It was created using e-learning authoring software and delivered through a learning management system.

  10. Tips for labor coaches

    MedlinePlus

    ... some tips for getting prepared. Before the big day arrives Labor coaches should go to childbirth classes ... get through her labor and delivery. When the day arrives You might be at the hospital for ...

  11. Technology Tips: A Potpourri.

    ERIC Educational Resources Information Center

    Cuoco, Albert A.; And Others, Eds.

    1994-01-01

    Contains tips from readers about using technology in the classroom, including notebook computers, classroom sets of calculators, geometry software, LOGO software, publisher discounts, curriculum materials in CD-ROM, and volunteer help in computers and computer networking for schools. (MKR)

  12. Tips for Daily Living

    MedlinePlus

    ... After Stroke Weight Training After Stroke Tips for Improving Fine Motor Skills Functional Tone Management Arm Training Program Constraint-Induced Movement Therapy Emotional & Behavioral Challenges Self-Esteem after Stroke Post-Stroke Mood Disorders One-side ...

  13. Ten Tips for Teachers

    ERIC Educational Resources Information Center

    Mahon, Robert Lee

    2005-01-01

    In this article, the author shares some tips for teachers. His tips are as follows: (1) a teacher should forget his or her education; (2) a teacher should forget the theory (3) a teacher should remember that he or she is a translator, not an originator; (4) a teacher should respect his or her students; (5) a teacher should be true to his or her…

  14. Work activity in food service: The significance of customer relations, tipping practices and gender for preventing musculoskeletal disorders.

    PubMed

    Laperrière, Ève; Messing, Karen; Bourbonnais, Renée

    2017-01-01

    Some evidence shows that food servers are exposed to an elevated risk of musculoskeletal disorders and injuries, and that their work activity varies by gender. Interviews of servers and observations of food service in Québec, Canada, were carried out in three restaurants and a questionnaire was administered to 64 workers from 44 other restaurants. The relationship with the customer has specific effects on work activity and transforms the physical, emotional and cognitive work. Strategies intended to speed service or otherwise related to the customer relationship can involve health risks. Women reported more direct food service (p < 0.01), a tendency to do more "housekeeping" tasks (p < 0.07) and fewer hours of work per week (p < 0.01). Women workers reported experiencing more sites of pain (p < 0.003). This exploratory study suggests that managing the server-customer relationship could be important in preventing musculoskeletal disorders in this population and that women are at particular risk. PMID:27633201

  15. Work activity in food service: The significance of customer relations, tipping practices and gender for preventing musculoskeletal disorders.

    PubMed

    Laperrière, Ève; Messing, Karen; Bourbonnais, Renée

    2017-01-01

    Some evidence shows that food servers are exposed to an elevated risk of musculoskeletal disorders and injuries, and that their work activity varies by gender. Interviews of servers and observations of food service in Québec, Canada, were carried out in three restaurants and a questionnaire was administered to 64 workers from 44 other restaurants. The relationship with the customer has specific effects on work activity and transforms the physical, emotional and cognitive work. Strategies intended to speed service or otherwise related to the customer relationship can involve health risks. Women reported more direct food service (p < 0.01), a tendency to do more "housekeeping" tasks (p < 0.07) and fewer hours of work per week (p < 0.01). Women workers reported experiencing more sites of pain (p < 0.003). This exploratory study suggests that managing the server-customer relationship could be important in preventing musculoskeletal disorders in this population and that women are at particular risk.

  16. Teaching and Assessing Clinical Skills Using a Modified Essay Examination. Teaching Activity Poster.

    ERIC Educational Resources Information Center

    Brown, Stephen W.

    A "modified essay examination" was used to help teach and to assess clinical problem-solving skills with 11 first trimester doctoral students. This examination provided a paper-and-pencil simulation of problems encountered in case management. Students were required to generate hypotheses, formulate questions, discuss issues, and make management…

  17. Teaching Intercultural English Learning/Teaching in World Englishes: Some Classroom Activities in South Korea

    ERIC Educational Resources Information Center

    Lee, Kang-Young

    2012-01-01

    This paper discusses what intercultural English learning/teaching (IELT) is in English as a world Englishes (WEes) and how IELT can contribute to the development of proficiency/competence among WEes and can be fitted into actual WEes classrooms. This is to claim that IELT be a pivotal contextual factor facilitating success in…

  18. Using Active Learning in a Studio Classroom to Teach Molecular Biology

    ERIC Educational Resources Information Center

    Nogaj, Luiza A.

    2013-01-01

    This article describes the conversion of a lecture-based molecular biology course into an active learning environment in a studio classroom. Specific assignments and activities are provided as examples. The goal of these activities is to involve students in collaborative learning, teach them how to participate in the learning process, and give…

  19. Comparison of Selected Outcomes Based on Teaching Strategies that Promote Active Learning in Nursing Education

    ERIC Educational Resources Information Center

    Nicholson, Anita Christine

    2010-01-01

    This study examined differences in the effects of three active-learning teaching strategies (case-based learning, simulation, and simulation with narrative pedagogy) on the outcomes of nursing student performance of intervention activities, performance retention of intervention activities, student satisfaction, self-confidence, and educational…

  20. Electro-hydrodynamics and kinetic modelling of polluted air flow activated by multi-tip-to-plane corona discharge

    NASA Astrophysics Data System (ADS)

    Meziane, M.; Eichwald, O.; Sarrette, J. P.; Ducasse, O.; Yousfi, M.; Marchal, F.

    2013-04-01

    The present paper is devoted to the 2D simulation of an Atmospheric Corona Discharge Reactor (ACDR) involving 10 pins powered by a DC high voltage and positioned 7 mm above a grounded metallic plane. The corona reactor is periodically crossed by thin mono filamentary streamers with a natural repetition frequency of some tens of kHz. The simulation involves the electro-dynamic, chemical kinetic, and neutral gas hydrodynamic phenomena that influence the kinetics of the chemical species transformation. Each discharge stage (including the primary and the secondary streamers development and the resulting thermal shock) lasts about one hundred nanoseconds while the post-discharge stages occurring between two successive discharge phases last one hundred microseconds. The ACDR is crossed by a lateral air flow including 400 ppm of NO. During the considered time scale of 10 ms, one hundred discharge/post-discharge cycles are simulated. The simulation involves the radical formation and thermal exchange between the discharges and the background gas. The results show how the successive discharges activate the flow gas and how the induced turbulence phenomena affect the redistribution of the thermal energy and the chemical kinetics inside the ACDR.

  1. Electro-hydrodynamics and kinetic modelling of polluted air flow activated by multi-tip-to-plane corona discharge

    SciTech Connect

    Meziane, M.; Eichwald, O.; Ducasse, O.; Marchal, F.; Sarrette, J. P.; Yousfi, M.

    2013-04-21

    The present paper is devoted to the 2D simulation of an Atmospheric Corona Discharge Reactor (ACDR) involving 10 pins powered by a DC high voltage and positioned 7 mm above a grounded metallic plane. The corona reactor is periodically crossed by thin mono filamentary streamers with a natural repetition frequency of some tens of kHz. The simulation involves the electro-dynamic, chemical kinetic, and neutral gas hydrodynamic phenomena that influence the kinetics of the chemical species transformation. Each discharge stage (including the primary and the secondary streamers development and the resulting thermal shock) lasts about one hundred nanoseconds while the post-discharge stages occurring between two successive discharge phases last one hundred microseconds. The ACDR is crossed by a lateral air flow including 400 ppm of NO. During the considered time scale of 10 ms, one hundred discharge/post-discharge cycles are simulated. The simulation involves the radical formation and thermal exchange between the discharges and the background gas. The results show how the successive discharges activate the flow gas and how the induced turbulence phenomena affect the redistribution of the thermal energy and the chemical kinetics inside the ACDR.

  2. Teaching Students the Persuasive Message through Small Group Activity

    ERIC Educational Resources Information Center

    Creelman, Valerie

    2008-01-01

    Teaching students to write persuasive messages is a critical feature of any undergraduate business communications course. For the persuasive writing module in the author's course, students write a persuasive message on the basis of the four-part indirect pattern often used for sales or fund-raising messages. The course text she uses identifies…

  3. Teaching a CS Introductory Course: An Active Approach

    ERIC Educational Resources Information Center

    Moura, Isabel C.; van Hattum-Janssen, Natascha

    2011-01-01

    Computer Science (CS) introductory courses that are offered by the Department of Information Systems at the University of Minho (UM), Portugal, seem to abound in non-motivated students. They are characterized by high failure and withdrawal rates and use mainly deductive teaching approaches. Deductive instruction begins with theories and progresses…

  4. Elections: Secondary Teaching Activities in the Participation Series.

    ERIC Educational Resources Information Center

    Schultz, John; Taft-Morales, Hugh

    One of a series of teacher-developed curriculum guides designed to encourage student participation and involvement in important social issues, this secondary level guide helps 7th through 12th grade English and social studies educators teach about the election process. An introductory section suggests practical considerations, means of enlisting…

  5. Learning from the Land: Teaching Ecology through Stories and Activities.

    ERIC Educational Resources Information Center

    Ellis, Brian Fox

    This book strives to combine creative writing, the whole language approach, thinking skills, and problem-solving strategies with an introduction to ecological concepts. It aims to bring scientific facts to life by creating empathy for wild creatures and teach basic science skills by using creative writing and storytelling. This book contains nine…

  6. Transformational teaching and physical activity: a new paradigm for adolescent health promotion?

    PubMed

    Morton, K L; Keith, S E; Beauchamp, M R

    2010-03-01

    Drawing from transformational leadership theory, this research examined adolescent perceptions of transformational teaching within school-based physical education. In Study 1, focus groups with 62 adolescents examined perceptions of physical education teachers' behaviors. In Study 2, follow-up semi-structured interviews were conducted with 18 purposively sampled students. Findings revealed that behaviors within physical education settings can be understood within a conceptual framework that includes transformational teaching. In addition, students who perceived their teachers to utilize transformational behaviors described more adaptive responses. Issues concerning theory development and the application of transformational teaching to physical activity and health promotion settings are considered.

  7. Toward a Descriptive Science of Teaching: How the TDOP Illuminates the Multidimensional Nature of Active Learning in Postsecondary Classrooms

    ERIC Educational Resources Information Center

    Hora, Matthew T.

    2015-01-01

    Detailed accounts of teaching can shed light on the nature and prevalence of active learning, yet common approaches reduce teaching to unidimensional descriptors or binary categorizations. In this paper, I use the instructional systems-of-practice framework and the Teaching Dimensions Observation Protocol (TDOP) to advance an approach to thinking…

  8. Evolving Indications for Tips.

    PubMed

    Smith, Mitchell; Durham, Janette

    2016-03-01

    Transjugular intrahepatic portosystemic shunt creation is a well-established therapy for refractory variceal bleeding and refractory ascites in patients who do not tolerate repeated large volume paracentesis. Experience and technical improvements including covered stents have led to improved TIPS outcomes that have encouraged an expanded application. Evidence for other less frequent indications continues to accumulate, including the indications of primary prophylaxis in patients with high-risk acute variceal bleeding, gastric and ectopic variceal bleeding, primary treatment of medically refractory ascites, recurrent refractory ascites following liver transplantation, hepatic hydrothorax, hepatorenal syndrome, Budd-Chiari syndrome, and portal vein thrombosis. Treatment of patients with high-risk acute variceal bleeding with early TIPS and using transjugular intrahepatic portosystemic shunts as a primary therapy rather than large volume paracentesis for refractory ascites would likely be the 2 circumstances that permit expansion in the frequency of TIPS procedures. The remaining populations discussed above are relatively rare. PMID:26997087

  9. Magnet pole tips

    DOEpatents

    Thorn, Craig E.; Chasman, Chellis; Baltz, Anthony J.

    1984-04-24

    An improved magnet which more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  10. Magnet pole tips

    DOEpatents

    Thorn, C.E.; Chasman, C.; Baltz, A.J.

    1981-11-19

    An improved magnet more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  11. Teaching Plant Reproduction.

    ERIC Educational Resources Information Center

    Tolman, Marvin N., Ed.; Hardy, Garry R., Ed.

    2000-01-01

    Recommends using Amaryllis hippeastrum to teach young children about plant reproduction. Provides tips for growing these plants, discusses the fast growing rate of the plant, and explains the anatomy. (YDS)

  12. Patterns of Teaching Style and Active Teaching: Do They Differ across Subjects in Low and High Performing Primary Schools in Kenya?

    ERIC Educational Resources Information Center

    Ngware, Moses W.; Mutisya, Maurice; Oketch, Moses

    2012-01-01

    This paper focuses on the patterns of teaching styles and active teaching across subjects and between low and high performing schools in an attempt to examine what accounts for differences in performance between schools which are within the same locality. It uses data collected in 72 primary schools spread across six districts in Kenya. Video…

  13. The Effectiveness of Embedded Teaching through the Most-to-Least Prompting Procedure in Concept Teaching to Children with Autism within Orff-Based Music Activities

    ERIC Educational Resources Information Center

    Eren, Bilgehan; Deniz, Jale; Duzkantar, Ayten

    2013-01-01

    The purpose of this study was to demonstrate the effectiveness of embedded teaching through the most-to-least prompting procedure in concept teaching to children with autism in Orff-based music activities. In this research, being one of the single subject research designs, multiple probe design was used. The generalization effect of the research…

  14. Variation in contributions to teaching by meerkats.

    PubMed

    Thornton, Alex

    2008-08-01

    Recent evidence from cooperative insect, bird and mammal societies has challenged the assumption that teaching is restricted to humans. However, little is known about the factors affecting the degree to which individuals in such societies contribute to teaching. Here, I examine variation in contributions to teaching in meerkats, where older group members teach pups to handle difficult prey. I show that investment in teaching varies with characteristics of pups, helpers, groups and ecological conditions. Although prior experience in caring for pups did not significantly influence teaching behaviour, younger helpers, which were still investing in growth, contributed less to teaching than older individuals. This suggests that, in common with other cooperative activities, contributions to teaching vary with the costs experienced by individual group members. However, in contrast to other forms of helping in meerkats, I detected no effects of nutritional state on teaching, suggesting that it carries relatively low costs. In species where individuals can potentially gain direct or indirect fitness benefits from facilitating learning in others, low costs divided among multiple group members may help tip the balance towards selection for teaching.

  15. Variation in contributions to teaching by meerkats.

    PubMed

    Thornton, Alex

    2008-08-01

    Recent evidence from cooperative insect, bird and mammal societies has challenged the assumption that teaching is restricted to humans. However, little is known about the factors affecting the degree to which individuals in such societies contribute to teaching. Here, I examine variation in contributions to teaching in meerkats, where older group members teach pups to handle difficult prey. I show that investment in teaching varies with characteristics of pups, helpers, groups and ecological conditions. Although prior experience in caring for pups did not significantly influence teaching behaviour, younger helpers, which were still investing in growth, contributed less to teaching than older individuals. This suggests that, in common with other cooperative activities, contributions to teaching vary with the costs experienced by individual group members. However, in contrast to other forms of helping in meerkats, I detected no effects of nutritional state on teaching, suggesting that it carries relatively low costs. In species where individuals can potentially gain direct or indirect fitness benefits from facilitating learning in others, low costs divided among multiple group members may help tip the balance towards selection for teaching. PMID:18445555

  16. From Yeast to Hair Dryers: Effective Activities for Teaching Environmental Sciences.

    ERIC Educational Resources Information Center

    Nolan, Kathleen A.

    2001-01-01

    Reports on four experiments and/or activities that were used to stimulate student interest in environmental science. Makes the case that varying classroom activities in the environmental science classroom makes the teaching and learning experience more alive and vital to both instructor and student. (Author/MM)

  17. Place-Based Science Teaching and Learning: 40 Activities for K-8 Classrooms

    ERIC Educational Resources Information Center

    Buxton, Cory A.; Provenzo, Eugene F., Jr.

    2011-01-01

    Grounded in theory and best-practices research, this practical text provides elementary and middle school teachers with 40 place-based activities that will help them to make science learning relevant to their students. This text provides teachers with both a rationale and a set of strategies and activities for teaching science in a local context…

  18. Teaching Primary Science: Emotions, Identity and the Use of Practical Activities

    ERIC Educational Resources Information Center

    Cripps Clark, John; Groves, Susie

    2012-01-01

    This paper uses cultural historical activity theory to examine the interactions between the choices primary teachers make in the use of practical activities in their teaching of science and the purposes they attribute to these; their emotions, background and beliefs; and the construction of their identities as teachers of science. It draws on four…

  19. Active Teaching of Diffusion through History of Science, Computer Animation and Role Playing

    ERIC Educational Resources Information Center

    Krajsek, Simona Strgulc; Vilhar, Barbara

    2010-01-01

    We developed and tested a lesson plan for active teaching of diffusion in secondary schools (grades 10-13), which stimulates understanding of the thermal (Brownian) motion of particles as the principle underlying diffusion. During the lesson, students actively explore the Brownian motion through microscope observations of irregularly moving small…

  20. Eye Openers: Handbook of International Teaching Activities. Some Borrowed...Some New.

    ERIC Educational Resources Information Center

    Bluegrass International Program, Lexington, KY.

    This collection of global activities and teaching strategies, suggested and used by teachers, helps to foster international education in the classroom. There are 32 separate proposals for learning activities, covering a variety of format styles, educational levels, and classroom procedures. Some examples include: (1) "Global ABC's" is a poem…

  1. Activity-Based Approach for Teaching Aqueous Solubility, Energy, and Entropy

    ERIC Educational Resources Information Center

    Eisen, Laura; Marano, Nadia; Glazier, Samantha

    2014-01-01

    We describe an activity-based approach for teaching aqueous solubility to introductory chemistry students that provides a more balanced presentation of the roles of energy and entropy in dissolution than is found in most general chemistry textbooks. In the first few activities, students observe that polar substances dissolve in water, whereas…

  2. Astronomy: Minds-on the Universe. Supplemental Teaching Activities for Grades K-8.

    ERIC Educational Resources Information Center

    Marble, Stephen; Fowler, Marilyn, Ed.

    This teachers guide contains activities and materials created to teach astronomy concepts to children from grades K-8. It is organized into four units: (1) Earth and Stars; (2) Spheres and Orbits; (3) Stars and Gravity; and (4) Scales and Measurement. Activities are arranged within each unit around six content topics: (1) Earth; (2) Solar System;…

  3. Self-Efficacy Theory and the Theory of Planned Behavior: Teaching Physically Active Physical Education Classes

    ERIC Educational Resources Information Center

    Martin, Jeffrey J.; Kulinna, Pamela Hodges

    2004-01-01

    The purpose of this investigation was to examine determinants of teachers' intentions to teach physically active physical education classes (i.e., spend at least 50% of class time with the students engaged in moderate to vigorous physical activity). Based on the theory of planned behavior, a model was examined hypothesizing that teachers'…

  4. Using Arts-Based Activities to Foster Transformative Learning during a Teaching Practicum in Kenya

    ERIC Educational Resources Information Center

    Black, Glenda; Bernardes, Rogerio

    2012-01-01

    This essay explores and presents strategies we, as Canadian faculty facilitators of a teaching practicum in Kenya, used to foster the pre-service teachers' knowledge and understanding of critical reflection and transformative learning processes by using arts-based activities. Participation in the arts-based activities while in Kenya encouraged the…

  5. The Development of Teaching Skills to Support Active Learning in University Science (ALIUS)

    ERIC Educational Resources Information Center

    Bedgood, Danny R., Jr.; Bridgeman, Adam J.; Buntine, Mark; Mocerino, Mauro; Southam, Daniel; Lim, Kieran F.; Gardiner, Michael; Yates, Brian; Morris, Gayle; Pyke, Simon M.; Zadnik, Marjan

    2010-01-01

    This paper describes an Australian Learning and Teaching Council funded project for which Learning Design is encompassed in the broadest sense. ALIUS (Active Learning In University Science) takes the design of learning back to the learning experiences created for students. ALIUS is not about designing a particular activity, or subject, or course,…

  6. A New Comparison of Active Learning Strategies to Traditional Lectures for Teaching College Astronomy

    ERIC Educational Resources Information Center

    LoPresto, Michael C.; Slater, Timothy F.

    2016-01-01

    Although traditional lectures are still the dominant form of undergraduate instruction, there have been relatively few studies comparing various learner-centered and active learning teaching strategies to one another in order to guide professors in making informed instructional decisions. To study the impact of different active learning…

  7. Activities for Teaching the U.S. Constitution in the Elementary Grades.

    ERIC Educational Resources Information Center

    Corbin, Denee J.

    Designed to work with and be integrated into the existing curriculum, this learning packet contains activities that encourage discussion and critical thinking by students about the U.S. Constitution. The first activity teaches fundamental principles of government while the second asks students to explain how the Constitution was written through…

  8. The Activity System of School-Teaching Mathematics and Mathematical Modelling.

    ERIC Educational Resources Information Center

    Julie, Cyril

    2002-01-01

    Focuses on the activity system of school-teaching mathematics and the impact of mathematical modeling. Describes the Applications of and Modeling in School Mathematics Project (AMSMAP) which investigates teachers' mathematical modeling and its relationship to a hypothesized school mathematical modeling activity system. Discusses the notion of an…

  9. Tips and Tools for Teaching Quantum Mechanics

    NASA Astrophysics Data System (ADS)

    Zhu, Guangtian; Singh, Chandralekha

    2009-03-01

    Learning quantum mechanics is challenging -- students usually struggle to master the basic concepts, even though they may perform well on solving quantitative problems. Our group is investigating the difficulties that upper-level students have in learning quantum mechanics. To help improve student understanding of quantum concepts, we are designing quantum interactive learning tutorials (QuILTs) and tools for peer-instruction. Many of the tutorials employ computer simulations to help students visualize and develop better intuition about quantum phenomena. We will discuss the common students' difficulties, share the material we have developed and evaluated to make the quantum mechanics class engaging and useful, and show ways to bridge the gap between quantitative and conceptual aspects of quantum mechanics.

  10. Tips for Teaching Plant Water Relations.

    ERIC Educational Resources Information Center

    Berg, Virginia

    1993-01-01

    Presents two techniques involving simple and inexpensive demonstrations: (1) explains how pressure inside cells gives them mechanical strength, and (2) shows how water can be pulled up stems. Both can be adapted to suit a variety of levels of instruction. (PR)

  11. 13 Tips for Virtual World Teaching

    ERIC Educational Resources Information Center

    Villano, Matt

    2008-01-01

    Multi-user virtual environments (MUVEs) are gaining momentum as the latest and greatest learning tool in the world of education technology. How does one get started with them? How do they work? This article shares 13 secrets from immersive education experts and educators on how to have success in implementing these new tools and technologies on…

  12. Teaching Tips on Current Environmental Problems.

    ERIC Educational Resources Information Center

    Busch, Phyllis S.

    This manual, prepared by the Science Project Related to Upgrading Conservation Education (Project S.P.R.U.C.E.), contains suggestions for introducing elementary school students to current environmental problems. Problems treated are population density, social pollution, visual pollution, air pollution, and water pollution. A background discussion…

  13. Microearthquake activity around Kueishantao island, offshore northeastern Taiwan: Insights into the volcano-tectonic interactions at the tip of the southern Okinawa Trough

    NASA Astrophysics Data System (ADS)

    Konstantinou, K. I.; Pan, C.-Y.; Lin, C.-H.

    2013-05-01

    Kueishantao is a volcanic island located offshore the northeastern coast of Taiwan and lies at the tip of the southern Okinawa Trough which is the back-arc basin of the Ryukyu subduction zone. Its last eruption occurred during the Holocene (~ 7 ka), hence Kueishantao can be considered as an active volcano. In an effort to better understand how magmatic processes may interact with the regional tectonics, a seismic network was installed in the area during early January 2008. This network consisted of 16 three-component seismometers located both on Kueishantao and the coast of northeastern Taiwan. One year of data was analyzed yielding 425 earthquakes whose P and S arrival times were manually picked and each event was located using a nonlinear probabilistic location method. In order to improve the location accuracy, the minimum 1-D velocity model for this dataset was derived and all earthquakes were relocated using this model. The results show a tight cluster of events near Kueishantao while the remaining earthquakes are scattered between the island and mainland Taiwan. The majority of hypocentral depths range between 2.5 and 10 km where the former depth coincides with the bottom of the shallow sedimentary layer and the latter with the ductile lower crust. Waveforms of the three largest events were also inverted for the determination of their deviatoric and full moment tensor. No statistically significant isotropic component was found, while two of the events can be explained by a double-couple source. The third event exhibited a low frequency content (< 10 Hz) and a large non-double-couple component suggesting fluid involvement at its source. A stress inversion of all available focal mechanisms in the area shows that fluid circulation in the upper crust generates a local stress field around Kueishantao facilitating the opening of cracks along the NW-SE direction of regional extension.

  14. Health Tips for Adults

    MedlinePlus

    ... Griffin Rodgers, Director of the NIDDK Clinical Trials Current research studies and how you can volunteer Community Outreach and Health Fairs Science-based information and tips for planning an outreach effort or community event For Health Care Professionals Patient and provider resources ...

  15. TIPs for Technology Integration.

    ERIC Educational Resources Information Center

    Mandell, Susan; Sorge, Dennis H.; Russell, James D.

    2002-01-01

    Discusses the role of the teacher in effectively using technology in education based on the Technology Integration Project (TIP). Topics include why use technology; types of computer software; how to select software; software integration strategies; and effectively planning lessons that integrate the chosen software and integration strategy. (LRW)

  16. Tips for Energy Savers.

    ERIC Educational Resources Information Center

    Department of Energy, Washington, DC.

    According to 1986 U.S. Department of Energy data, 48% of our residential energy is used to heat and cool our homes, 16% goes for heating water, 12% is used to refrigerators and freezers, and the remaining 24% goes into lighting, cooking, and running appliances. This booklet contains tips for saving energy, including sections on: (1) draft-proof…

  17. Kegel Exercise Tips

    MedlinePlus

    ... PDF, 345 KB) Alternate Language URL Español Kegel Exercise Tips Page Content What are Kegel exercises? To do Kegel exercises, you just squeeze your ... help with your bladder control. How do you exercise your pelvic muscles? Find the right muscles. Try ...

  18. Using Students' Science Ideas to Drive Instruction: How Responsive Teaching Shapes Learning Activity

    NASA Astrophysics Data System (ADS)

    Canavesi, Cristina

    Teaching in a way that is responsive to students' science ideas creates opportunities for meaningful, rigorous sense-making in a way that traditional science teaching does not. In this study, the researcher, as a visiting teacher, taught the same three-week circuits unit to one fourth grade class and two fifth grade classes from a responsive teaching stance. The teachers' attention to and incorporation of students' science ideas shifted unit trajectories and uniquely shaped the ongoing learning activity within whole-group discourse. A unit-level analysis of the frequency and category of science concepts present in whole-group discourse shows that all three classes discussed the same science concepts by the end of the unit; however, when these ideas presented themselves within whole group discourse differed across time, even though students were engaged in the same lessons. Tensions and dilemmas of responsive science teaching are discussed.

  19. Texas Intense Positron Source (TIPS)

    NASA Astrophysics Data System (ADS)

    O'Kelly, D.

    2003-03-01

    The Texas Intense Positron Source (TIPS) is a state of the art variable energy positron beam under construction at the Nuclear Engineering Teaching Laboratory (NETL). Projected intensities on the order of the order of 10^7 e+/second using ^64Cu as the positron source are expected. Owing to is short half-life (t1/2 12.8 hrs), plans are to produce the ^64Cu isotope on-site using beam port 1 of NETL TRIGA Mark II reactor. Following tungsten moderation, the positrons will be electrostatically focused and accelerated from few 10's of eV up to 30 keV. This intensity and energy range should allow routine performance of several analytical techniques of interest to surface scientists (PALS, PADB and perhaps PAES and LEPD.) The TIPS project is being developed in parallel phases. Phase I of the project entails construction of the vacuum system, source chamber, main beam line, electrostatic/magnetic focusing and transport system as well as moderator design. Initial construction, testing and characterization of moderator and beam transport elements are underway and will use a commercially available 10 mCi ^22Na radioisotope as a source of positrons. Phase II of the project is concerned primarily with the Cu source geometry and thermal properties as well as production and physical handling of the radioisotope. Additional instrument optimizing based upon experience gained during Phase I will be incorporated in the final design. Current progress of both phases will be presented along with motivations and future directions.

  20. The Games Children Play III: More Comments on Effective Teaching

    ERIC Educational Resources Information Center

    Humphries, Charlotte A.; Ashy, Madge

    2013-01-01

    In the years since the authors published two articles with tips for effective teaching, they have acquired and developed more advice and impressions on teaching. This article presents ideas that can help physical educators become increasingly effective in their teaching.

  1. 14. TIP TOP MINE. TAILINGS LOCATED DIRECTLY WEST FROM TIP ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. TIP TOP MINE. TAILINGS LOCATED DIRECTLY WEST FROM TIP TOP HOUSE. ID-31-C-12 WOODEN STRUCTURE IS VISIBLE IN TOP LEFT. CABLES VISIBLE LEFT AND CENTER OF TAILINGS. HOUSE IS JUST OVER APEX OF TAILINGS. CAMERA POINTED EAST. - Florida Mountain Mining Sites, Tip Top Mine, West face Florida Mountain, approximately 150 feet below summit, Silver City, Owyhee County, ID

  2. Energy Conservation Teaching Activities for Home Economics Classrooms.

    ERIC Educational Resources Information Center

    Jedlicka, Ella, Ed.

    This collection of home economics activities is intended to meet the special needs of home economics teachers who wish to include energy education activities in their curricula. The 45 activities can be used as presented, or can be modified to individual needs or local conditions. Each activity includes: (1) title, (2) objective, (3) activity…

  3. Involving postgraduate's students in undergraduate small group teaching promotes active learning in both

    PubMed Central

    Kalra, Ruchi; Modi, Jyoti Nath; Vyas, Rashmi

    2015-01-01

    Background: Lecture is a common traditional method for teaching, but it may not stimulate higher order thinking and students may also be hesitant to express and interact. The postgraduate (PG) students are less involved with undergraduate (UG) teaching. Team based small group active learning method can contribute to better learning experience. Aim: To-promote active learning skills among the UG students using small group teaching methods involving PG students as facilitators to impart hands-on supervised training in teaching and managerial skills. Methodology: After Institutional approval under faculty supervision 92 UGs and 8 PGs participated in 6 small group sessions utilizing the jigsaw technique. Feedback was collected from both. Observations: Undergraduate Feedback (Percentage of Students Agreed): Learning in small groups was a good experience as it helped in better understanding of the subject (72%), students explored multiple reading resources (79%), they were actively involved in self-learning (88%), students reported initial apprehension of performance (71%), identified their learning gaps (86%), team enhanced their learning process (71%), informal learning in place of lecture was a welcome change (86%), it improved their communication skills (82%), small group learning can be useful for future self-learning (75%). Postgraduate Feedback: Majority performed facilitation for first time, perceived their performance as good (75%), it was helpful in self-learning (100%), felt confident of managing students in small groups (100%), as facilitator they improved their teaching skills, found it more useful and better identified own learning gaps (87.5%). Conclusions: Learning in small groups adopting team based approach involving both UGs and PGs promoted active learning in both and enhanced the teaching skills of the PGs. PMID:26380201

  4. Effect of Child Centred Methods on Teaching and Learning of Science Activities in Pre-Schools in Kenya

    ERIC Educational Resources Information Center

    Andiema, Nelly C.

    2016-01-01

    Despite many research studies showing the effectiveness of teacher application of child-centered learning in different educational settings, few studies have focused on teaching and learning activities in Pre-Schools. This research investigates the effect of child centered methods on teaching and learning of science activities in preschools in…

  5. Reflection of light: a teaching and learning activity with primary school children

    NASA Astrophysics Data System (ADS)

    Varela, Paulo; Abreu, Cátia; Costa, Manuel F. M.

    2014-08-01

    Light and its properties is a subject that strongly attracts children from very early ages. Inquiry-based science teaching although addressed in the curricula of various countries and suggested by some international organizations, continues to have a very low expression in the teaching practices of the majority of primary school teachers and preschool educators. In this sense, we have organized several continuing training courses in order to encourage these education professionals to promote this approach to science teaching in the classroom, with the children. As part of this training process, teachers and educators put into practice, with their students, the didactic knowledge they have developed, in order to become aware of the virtues of an inquiry-based approach to children's learning. Through the implementation of the "Reflection of Light" activity, in this article, we intend to analyze the process of teaching and learning promoted in a 3rd grade class by one of the teachers participating in the training courses. The analysis of the process reveals that the teacher in training carried out a successful didactic integration of the inquiry-based science teaching approach recommended for children. In turn, the children also developed a good understanding of the contents of the activity explored in the classroom.

  6. Active Learning: 101 Strategies To Teach Any Subject.

    ERIC Educational Resources Information Center

    Silberman, Mel

    This book contains specific, practical strategies that can be used for almost any subject matters to promote active learning. It brings together in one source a comprehensive collection of instructional strategies, with ways to get students to be active from the beginning through activities that build teamwork and get students thinking about the…

  7. Sweet! Candy Bar Activity Teaches CAD, Math, and Graphics

    ERIC Educational Resources Information Center

    Granlund, George

    2009-01-01

    By far, the tastiest technology learning activity that the author's students work on is the development of the design of a chocolate candy bar. This article describes how the author implemented the candy bar activity. The activity gives students an opportunity to design a product and to take it from concept through to production.

  8. Environmental Print Activities for Teaching Mathematics and Content Areas.

    ERIC Educational Resources Information Center

    Rule, Audrey C., Ed.; McIntyre, Sandra, Ed.; Ranous, Meg, Ed.

    Twenty-three mathematics activities that use environmental print materials are presented, along with two activities that focus on music education, one that highlights history concepts, and five science activities. The environmental print materials are words and images cut from food or other product packaging and mounted on mat board cards.…

  9. Got Ice? Teaching Ice-Skating as a Lifelong Activity

    ERIC Educational Resources Information Center

    Tarkinton, Brenda C.; Karp, Grace Goc

    2010-01-01

    With today's focus on the importance of lifelong physical activity, educators are increasingly offering a variety of such activities in their classes, as well as in before- and after-school programs. This article describes the benefits of offering ice skating as a challenging and rewarding lifetime activity, either before or after school or in…

  10. Teaching Activities in Environmental Education. Volume III - 1975.

    ERIC Educational Resources Information Center

    Wheatley, John H.; Coon, Herbert L.

    This volume is the third in a series of learning activities designed to supplement a K-12 curriculum. The activities are interdisciplinary in nature and include topics in science, mathematics, social studies, language arts, and fine arts. Besides a division of activities according to grade and subject matter, they are also grouped by environmental…

  11. Twelve tips for successfully implementing logbooks in clinical training

    PubMed Central

    Schüttpelz-Brauns, Katrin; Narciss, Elisabeth; Schneyinck, Claudia; Böhme, Klaus; Brüstle, Peter; Mau-Holzmann, Ulrike; Lammerding-Koeppel, Maria; Obertacke, Udo

    2016-01-01

    Abstract Background: Logbooks are widely used to set learning outcomes and to structure and standardize teaching in clinical settings. Experience shows that logbooks are not always optimally employed in clinical training. In this article, we have summarized our own experiences as well as results of studies into twelve tips on how to successfully implement logbooks into clinical settings. Methods: We conducted both a workshop concerning the importance of logbook training to exchange experiences in teaching practice, organization, didactic knowledge and a literature research to compare our own experiences and add additional aspects. Results: Tips include the process of developing the logbook itself, the change-management process, conditions of training and the integration of logbooks into the curriculum. Conclusions: Logbooks can be a valuable tool for training in clinical settings, especially when multiple sites are involved, when you take our tips into consideration. PMID:26841068

  12. Tips for Working with ADHD Students of All Ages.

    ERIC Educational Resources Information Center

    Robelia, Beth

    1997-01-01

    Tips for working with students who have attention deficit hyperactivity disorder include putting them in charge of something, providing structure, giving feedback, using logical consequences for unwanted behavior, being patient, teaching in novel ways, helping them with their gear, pairing them with another student, allowing blow-out time, and…

  13. Enhancing Leadership Quality. TQ Source Tips & Tools: Emerging Strategies to Enhance Educator Quality

    ERIC Educational Resources Information Center

    National Comprehensive Center for Teacher Quality, 2008

    2008-01-01

    Teaching Quality (TQ) Source Tips & Tools: Emerging Strategies to Enhance Educator Quality is an online resource developed by the TQ Center. It is designed to help education practitioners tap into strategies and resources they can use to enhance educator quality. This publication is based on the TQ Source Tips & Tools topic area "Enhancing…

  14. Smoking - tips on how to quit

    MedlinePlus

    ... Smoking cessation - tips on how to quit; Smokeless tobacco - tips on how to quit; Tobacco cessation - tips; Nicotine cessation - tips ... is hard to stop smoking or using smokeless tobacco, but anyone can do it. Know what symptoms ...

  15. Science Teaching and Learning Activities and Students' Engagement in Science

    ERIC Educational Resources Information Center

    Hampden-Thompson, Gillian; Bennett, Judith

    2013-01-01

    The purpose of this analysis is to describe the variation in students' reports of engagement in science across science teaching and learning activities. In addition, this study examines student and school characteristics that may be associated with students' levels of engagement in science. Data are drawn from the Programme for…

  16. A National Study of Training Content and Activities for Faculty Development for Online Teaching

    ERIC Educational Resources Information Center

    Meyer, Katrina A.; Murrell, Vicki S.

    2014-01-01

    This article presents the results of a national study of 39 higher education institutions that collected information about their practices for faculty development for online teaching and particularly the content and training activities used during 2011-2012. This study found that the most frequently offered training content (97% of the…

  17. Status of the Usage of Active Learning and Teaching Method and Techniques by Social Studies Teachers

    ERIC Educational Resources Information Center

    Akman, Özkan

    2016-01-01

    The purpose of this study was to determine the active learning and teaching methods and techniques which are employed by the social studies teachers working in state schools of Turkey. This usage status was assessed using different variables. This was a case study, wherein the research was limited to 241 social studies teachers. These teachers…

  18. What One Activity Would You Recommend to Teachers Who are Nervous about Teaching Poetry?

    ERIC Educational Resources Information Center

    Johnson, Walter H.; Sottile, Joseph; Witting, Charlotte R.

    2006-01-01

    In this brief column, three teachers submit recommendations on strategies and activities for teaching poetry. Walter H. Johnson suggests that using sonnets as an introduction to poetry can be a rewarding way to combine poetry terminology, a bit of literary history, and the search for meaning in poems. Joseph Sottile describes a classroom activity…

  19. An Active Learning Approach to Teach Advanced Multi-Predictor Modeling Concepts to Clinicians

    ERIC Educational Resources Information Center

    Samsa, Gregory P.; Thomas, Laine; Lee, Linda S.; Neal, Edward M.

    2012-01-01

    Clinicians have characteristics--high scientific maturity, low tolerance for symbol manipulation and programming, limited time outside of class--that limit the effectiveness of traditional methods for teaching multi-predictor modeling. We describe an active-learning based approach that shows particular promise for accommodating these…

  20. Clarity in Teaching and Active Learning in Undergraduate Microbiology Course for Non-Majors

    ERIC Educational Resources Information Center

    Marbach-Ad, Gili; McGinnis, J. Randy; Pease, Rebecca; Dai, Amy H.; Schalk, Kelly A.; Benson, Spencer

    2010-01-01

    We investigated a pedagogical innovation in an undergraduate microbiology course (Microbes and Society) for non-majors and education majors. The goals of the curriculum and pedagogical transformation were to promote active learning and concentrate on clarity in teaching. This course was part of a longitudinal project (Project Nexus) which…

  1. A Proposal for Teaching Undergraduate Chemistry Students Carbohydrate Biochemistry by Problem-Based Learning Activities

    ERIC Educational Resources Information Center

    Figueira, Angela C. M.; Rocha, Joao B. T.

    2014-01-01

    This article presents a problem-based learning (PBL) approach to teaching elementary biochemistry to undergraduate students. The activity was based on "the foods we eat." It was used to engage students' curiosity and to initiate learning about a subject that could be used by the future teachers in the high school. The experimental…

  2. Roles and Relationships in Student Teaching: A Role-Play Activity.

    ERIC Educational Resources Information Center

    Moses, Jeewa R.

    This role-play activity is designed for use by teacher educators in a general or content area methods class to help education majors become knowledgeable of role expectations in the student teaching experience and build good interpersonal role relationships. Students conduct library research and interviews concerning role expectations, use the…

  3. A "Tools for Teachers" Approach for Infusing Social Skills Instruction into Daily Teaching Activities

    ERIC Educational Resources Information Center

    Leffert, James S.; Brady, Mary E.; Siperstein, Gary N.

    2009-01-01

    Students participate in a "social community" of learners. For children with learning problems, mastering the skills needed to actively participate in this community can be a challenge. How can teachers find time to provide social skills instruction, given the pressures to teach academic subjects first and foremost? This article shows school…

  4. Teaching and Learning Activities in the Online Classroom: A Constructivist Perspective.

    ERIC Educational Resources Information Center

    Odin, Jaishree K.

    To establish standards of quality in online courses developed through the University of Hawaii's Asynchronous Learning project funded by the Alfred P. Sloan Foundation, a preliminary study of courses from various disciplines was conducted. The aim of the study was to identify teaching activities that contributed to the creation of a high quality…

  5. An Activity Theory Analysis of Teaching Goals versus Student Epistemological Positions

    ERIC Educational Resources Information Center

    Jaworski, Barbara; Robinson, Carol; Matthews, Janette; Croft, Tony

    2012-01-01

    A teaching innovation for first year engineering students' was designed to involve inquiry-based questions, an electronic graphical medium, small group activity and modifications to assessment. The use of an inquiry approach was intended to encourage students' deeper engagement with mathematics and more conceptual understanding. Data were…

  6. Picture Books: An Annotated Bibliography with Activities for Teaching Writing. [Fifth Edition.

    ERIC Educational Resources Information Center

    Culham, Ruth

    This book presents bibliographic annotations of 202 picture books and 53 activities for teaching writing. The first part of the book is arranged alphabetically by author within categories of six traits of writing in the analytical assessment model: ideas and content (clarity and focus, rich and vivid details, and a clear sense of purpose),…

  7. Active Teaching Strategies for a Sense of Salience: End-of-Life Communication

    ERIC Educational Resources Information Center

    Kopp, Mary L.

    2013-01-01

    This study compared active teaching strategies with passive lecture by evaluating cognitive, affective, and psychomotor learning outcomes, while highlighting end-of-life communication in nursing education. The problem addressed was twofold: First, passive lecture prevents transfer to situational decision-making, or a sense of salience (Benner,…

  8. Booklists for the Teaching of Mathematics in Schools: Practical and Constructional Activities (Ref: P&C).

    ERIC Educational Resources Information Center

    Mathematical Association, Leicester (England).

    Presented is a listing of books recommended by the Mathematical Association of the United Kingdom that deal with practical and constructional teaching activities. The following information on each book is provided: author; title; publisher; cost to the nearest pound; categories of use; and a code that indicates if the book in question is out of…

  9. A Novel Laboratory Activity for Teaching about the Evolution of Multicellularity

    ERIC Educational Resources Information Center

    Ratcliff, William C.; Raney, Allison; Westreich, Sam; Cotner, Sehoya

    2014-01-01

    The evolution of complexity remains one of the most challenging topics in biology to teach effectively. We present a novel laboratory activity, modeled on a recent experimental breakthrough, in which students experimentally evolve simple multicellularity using single-celled yeast ("Saccharomyces cerevisiae"). By simply selecting for…

  10. Activity-Based Teaching in Social Studies Education: An Action Research

    ERIC Educational Resources Information Center

    Akkus, Zekerya

    2015-01-01

    The aim of this study was to determine pre-service social studies teachers' skills to plan and apply the activity-based teaching and contribute to their development of these skills. In the study, the action research design of qualitative research was used. The sample of the study consisted of 6 pre-service teachers who were 4th year students at…

  11. Attending to the Grammatical Errors of Students Using Constructive Teaching and Learning Activities

    ERIC Educational Resources Information Center

    Wornyo, Albert Agbesi

    2016-01-01

    This study was a classroom-based action research. In this study, constructive teaching and learning activities were used to help learners improve on their grammar and usage with a focus on how to help them internalize subject verb agreement rules. The purpose of the research was to assist learners to improve upon their performance in grammar and…

  12. Genome Consortium for Active Teaching: Meeting the Goals of BIO2010

    ERIC Educational Resources Information Center

    Campbell, A. Malcolm; Ledbetter, Mary Lee S.; Hoopes, Laura L. M.; Eckdahl, Todd T.; Heyer, Laurie J.; Rosenwald, Anne; Fowlks, Edison; Tonidandel, Scott; Bucholtz, Brooke; Gottfried, Gail

    2007-01-01

    The Genome Consortium for Active Teaching (GCAT) facilitates the use of modern genomics methods in undergraduate education. Initially focused on microarray technology, but with an eye toward diversification, GCAT is a community working to improve the education of tomorrow's life science professionals. GCAT participants have access to affordable…

  13. Teaching about Food and Hunger: 33 Activities. Environmental Education Series, Volume 1.

    ERIC Educational Resources Information Center

    Otero, George G.; Smith, Gary R.

    Thirty-three supplementary teaching activities are provided to complement existing curricula related to food. Content covers food production and distribution, nutrition, food shortages, food habits, meal planning, and other topics appropriate for secondary and adult programs. Although the objectives are varied for each lesson, taken as a whole…

  14. Student Teaching Performance in English as Measured with Checklist of High School Class Activities.

    ERIC Educational Resources Information Center

    Veal, L. Ramon; Scott, Owen

    The purpose of this investigation was to examine the performance of University of Georgia student teachers in English on the six dimensions of the Checklist of High School Class Activities and to compare this evaluation with student teaching grades, academic grades, and scores on the National Teacher Examinations. The 74-item checklist was…

  15. Using Active Learning to Teach Culturally Relevant Personal Finance to Native American Students

    ERIC Educational Resources Information Center

    Saboe, Lorna

    2014-01-01

    Active learning is a teaching approach that requires students to do something intellectually with course content. This involves examining, questioning, and relating knowledge gained from previous experiences to new knowledge and skills. Native American students have been found to have low financial literacy skills. Family and consumer sciences…

  16. Determinants of Teachers' Intentions To Teach Physically Active Physical Education Classes.

    ERIC Educational Resources Information Center

    Martin, Jeffrey J.; Kulinna, Pamela Hodges; Eklund, Robert C.; Reed, Brett

    2001-01-01

    Investigated elementary and secondary teachers' intentions to teach physically active physical education classes, examining a model hypothesizing that teachers' intentions were determined by subjective norm, attitude, perceived behavioral control, and self-efficacy. Teacher surveys supported the theories of reasoned action and planned behavior.…

  17. Integrating Active Learning, Critical Thinking and Multicultural Education in Teaching Media Ethics across the Curriculum.

    ERIC Educational Resources Information Center

    Brislin, Tom

    This paper presents four teaching strategies, grounded in pedagogical theory, to encourage an active, challenging, creative, and meaningful experience for journalism and mass communication students grappling with moral issues, and developing higher order thinking in ethical decision-making processes. Strategies emphasizing critical thinking and…

  18. Teaching the Common Core Math Standards with Hands-On Activities, Grades 6-8

    ERIC Educational Resources Information Center

    Muschla, Judith A.; Muschla, Gary Robert; Muschla, Erin

    2012-01-01

    The new Common Core State Standards for Mathematics have been formulated to provide students with instruction that will help them acquire a thorough knowledge of math at their grade level, which will in turn enable them to move on to higher mathematics with competence and confidence. "Hands-on Activities for Teaching the Common Core Math…

  19. Factors Influencing Entering Teacher Candidates' Preferences for Instructional Activities: A Glimpse into Their Orientations towards Teaching

    ERIC Educational Resources Information Center

    Talanquer, Vicente; Novodvorsky, Ingrid; Tomanek, Debra

    2010-01-01

    The present study was designed to identify and characterize the major factors that influence entering science teacher candidates' preferences for different types of instructional activities, and to analyze what these factors suggest about teacher candidates' orientations towards science teaching. The study involved prospective teachers enrolled in…

  20. Global Change. Teaching Activities on Global Change for Grades 4-6.

    ERIC Educational Resources Information Center

    Geological Survey (Dept. of Interior), Reston, VA.

    This packet contains a series of teaching guides on global change. The series includes lessons on dendrochronology; land, air, and water; and island living. Included is information such as : laws of straws; where land, air, and water meet; and Earth as home. Each section provides an introductory description of the activity, the purpose of the…

  1. Teaching Assessment and Appraisal: Humanistic Strategies and Activities for Counselor Educators

    ERIC Educational Resources Information Center

    Davis, Keith M.; Chang, Catherine Y.; McGlothlin, Jason M.

    2005-01-01

    This article describes the incorporation of humanistic strategies and interactive activities for counselor educators who teach counseling courses in assessment or appraisal. This information helps demonstrate the utility of practical humanistic knowledge and skills for this important Council for Accreditation of Counseling and Related Educational…

  2. Running Simulations without Ruining Your Life: Simple Ways to Incorporate Active Learning into Your Teaching

    ERIC Educational Resources Information Center

    Glazier, Rebecca A.

    2011-01-01

    Despite the growing availability and popularity of simulations and other active teaching techniques, many instructors may be deterred from using simulations because of the potentially high costs involved. Instructors could spend a preponderance of their time and resources developing and executing simulations, but such an approach is not necessary.…

  3. The Effect of Post-Teaching Activity Type on Vocabulary Learning of Elementary EFL Learners

    ERIC Educational Resources Information Center

    Sadeghi, Karim; Sharifi, Faranak

    2013-01-01

    Considering the significant role of vocabulary in learning a language, and teachers' great responsibility in providing opportunities to facilitate this learning, many studies have focused on the best means of achieving a good knowledge of vocabulary. This study set out to investigate the effect of four post-teaching activities, namely game,…

  4. Jelly Jam, the People Preserver. An Environmental Self-Teaching Activity Book. Bermuda Edition.

    ERIC Educational Resources Information Center

    Friedman, Judi

    Designed for students in grades 2 through 4, this self-teaching, interdisciplinary reading and activity program approaches the environmental conditions, the state of natural resources, and the problems of pollution in Bermuda. A caring little animal named Jelly Jam is used to help children understand how air, water, and land pollution affect their…

  5. Jelly Jam, the People Preserver. An Environmental Self-Teaching Activity Book.

    ERIC Educational Resources Information Center

    Friedman, Judi

    Designed for students in grades 2 through 4, this self-teaching, interdisciplinary reading and activity program comprises a complete supplemental reading, science, and social studies approach to the problems of environmental pollution. Jelly Jam, a caring little animal, helps children understand how air, water, and land pollution affects their own…

  6. Instructional Design, Active Learning, and Student Performance: Using a Trading Room to Teach Strategy

    ERIC Educational Resources Information Center

    Stewart, Alice C.; Houghton, Susan M.; Rogers, Patrick R.

    2012-01-01

    This research used a quasi-experimental design with two conditions to test the impact of active learning in the context of integrated instructional design. The control condition was a traditional approach to teaching an undergraduate strategy capstone class. The intervention condition was an undergraduate strategy capstone class that was designed…

  7. Ben's Perception of Space and Subitizing Activity: A Constructivist Teaching Experiment

    ERIC Educational Resources Information Center

    MacDonald, Beth L.

    2015-01-01

    This 22-session constructivist teaching experiment set out to investigate a preschool student's number understanding relative to his subitizing activity. Subitizing, a quick apprehension of the numerosity of a small set of items, has been found to characterize perceptual and conceptual processes students rely on as their understanding of number…

  8. Active Learning and Just-in-Time Teaching in a Material and Energy Balances Course

    ERIC Educational Resources Information Center

    Liberatore, Matthew W.

    2013-01-01

    The delivery of a material and energy balances course is enhanced through a series of in-class and out-of-class exercises. An active learning classroom is achieved, even at class sizes over 150 students, using multiple instructors in a single classroom, problem solving in teams, problems based on YouTube videos, and just-in-time teaching. To avoid…

  9. Tip-enhanced Raman scattering microscopy: Recent advance in tip production

    NASA Astrophysics Data System (ADS)

    Fujita, Yasuhiko; Walke, Peter; De Feyter, Steven; Uji-i, Hiroshi

    2016-08-01

    Tip-enhanced Raman scattering (TERS) microscopy is a technique that combines the chemical sensitivity of Raman spectroscopy with the resolving power of scanning probe microscopy. The key component of any TERS setup is a plasmonically-active noble metal tip, which serves to couple far-field incident radiation with the near-field. Thus, the design and implementation of reproducible probes are crucial for the continued development of TERS as a tool for nanoscopic analysis. Here we discuss conventional methods for the fabrication of TERS-ready tips, highlighting the problems therein, as well as detailing more recent developments to improve reducibility. In addition, the idea of remote excitation-TERS is enlightened upon, whereby TERS sensitivity is further improved by using propagating surface plasmons to separate the incident radiation from the tip apex, as well as how this can be incorporated into the fabrication process.

  10. Teaching Basic Geographical Skills: Map and Compass Activities.

    ERIC Educational Resources Information Center

    Trussell, Margaret Edith

    1986-01-01

    Presents a unit on map and compass activities which introduces compass direction, magnetic declination and conversion of map measurement to familiar units. Requires four, one-hour class meetings and may be followed by a half-day orienteering activity. (Author/JDH)

  11. WATER: Water Activities Teaching Environmental Responsibility: Teacher Resource, Environmental Science.

    ERIC Educational Resources Information Center

    Kramer, Ed, Ed.; And Others

    This activity book was developed as part of an effort to protect water quality of the Stillwater River, Ohio, through a Watershed Protection Project. It is designed to raise teachers' and students' awareness and trigger a sense of stewardship towards the preservation of water resources. The activities are generally appropriate for elementary age…

  12. Teaching Sociological Theory through Active Learning: The Irrigation Exercise

    ERIC Educational Resources Information Center

    Holtzman, Mellisa

    2005-01-01

    For students, theory is often one of the most daunting aspects of sociology--it seems abstract, removed from the concrete events of their everyday lives, and therefore intimidating. In an attempt to break down student resistance to theory, instructors are increasingly turning to active learning approaches. Active learning exercises, then, appear…

  13. The Learning Activities Questionnaire: A Tool to Enhance Teaching

    ERIC Educational Resources Information Center

    Ager, Richard

    2012-01-01

    This article describes the Learning Activities Questionnaire (LAQ) and how it can be employed to evaluate learning tasks not typically examined in course evaluation instruments such as readings and assignments. Drawing from behavioral theory in its focus on specific activities, this instrument is simple to interpret and provides clear direction…

  14. "Old Dead Guys": Using Activity Breaks to Teach History

    ERIC Educational Resources Information Center

    Holles, Joseph H.

    2009-01-01

    The people and history of chemical engineering surround us: Gibbs free energy, Arrhenius Equation, and Reynolds number. Since these seminal figures appear in almost every classroom lecture, they provide an opportunity for a historically focused activity break. Each activity break provides the students with an image of the historical figure along…

  15. Teaching dental anatomy with light-activated resins.

    PubMed

    Chalkley, Y; Denehy, G E; Schulein, T M

    1984-04-01

    A method has been described in which light-activated resins are incorporated into the dental anatomy laboratory. This procedure is a valuable addition to the anatomy course because students (1) work with a restorative material appropriate for anterior teeth, (2) learn the unique properties of the light-activated resins, and (3) apply the principles of dental anatomy to a clinically relevant task.

  16. Healthy and Creative Tap Dance: Teaching a Lifetime Physical Activity

    ERIC Educational Resources Information Center

    Hernandez, Barbara L. Michiels; Ozmun, Michelle; Keeton, Gladys

    2013-01-01

    As a result of competitive dance television shows, interest in tap dance seems to have increased in the past few years. Tap dance is a challenging and fun lifetime physical activity that is appropriate for people of all ages. It is an excellent activity for K-12 physical education programs, higher education, parks and recreation facilities,…

  17. Using a Pseudoscience Activity to Teach Critical Thinking

    ERIC Educational Resources Information Center

    Adam, Aimee; Manson, Todd M.

    2014-01-01

    In two studies, we assessed the effectiveness of a classroom activity designed to increase students' ability to think critically. This activity involved watching and discussing an infomercial that contained pseudoscientific claims, thus incorporating course material on good research design and critical thinking. In Study 1, we used a…

  18. Multiple Shoot Tip Cultures in Peas.

    ERIC Educational Resources Information Center

    Smith, Robert A.; And Others

    1997-01-01

    Describes an exercise used as a follow-up activity to a lecture presentation exploring the basic methodology and theory of shoot tip cultures. Utilizes a factorial experimental design which allows for the determination of the effects of each factor alone and in combination with each other. Other concepts emphasized include dependent and…

  19. Helping Your Child Learn Math: Math Tips for Parents

    ERIC Educational Resources Information Center

    Nebraska Department of Education, 2010

    2010-01-01

    This paper presents tips, activities, resources, and games that parents can use to help their children become more proficient in math. Some helpful tips offered are: (1) Be positive; (2) Play family games; (3) Avoid stereotypes; (4) Choose gifts that develop problem solving skills; (5) Expand your children's horizons; (6) Buy or borrow library…

  20. Tipping point leadership.

    PubMed

    Kim, W Chan; Mauborgne, Renée

    2003-04-01

    When William Bratton was appointed police commissioner of New York City in 1994, turf wars over jurisdiction and funding were rife and crime was out of control. Yet in less than two years, and without an increase in his budget, Bratton turned New York into the safest large city in the nation. And the NYPD was only the latest of five law-enforcement agencies Bratton had turned around. In each case, he succeeded in record time despite limited resources, a demotivated staff, opposition from powerful vested interests, and an organization wedded to the status quo. Bratton's turnarounds demonstrate what the authors call tipping point leadership. The theory of tipping points hinges on the insight that in any organization, fundamental changes can occur quickly when the beliefs and energies of a critical mass of people create an epidemic movement toward an idea. Bratton begins by overcoming the cognitive hurdles that block organizations from recognizing the need for change. He does this by putting managers face-to-face with operational problems. Next, he manages around limitations on funds, staff, or equipment by concentrating resources on the areas that are most in need of change and that have the biggest payoffs. He meanwhile solves the motivation problem by singling out key influencers--people with disproportionate power due to their connections or persuasive abilities. Finally, he closes off resistance from powerful opponents. Not every CEO has the personality to be a Bill Bratton, but his successes are due to much more than his personality. He relies on a remarkably consistent method that any manager looking to turn around an organization can use to overcome the forces of inertia and reach the tipping point. PMID:12687920

  1. Teaching students to read the primary literature using POGIL activities.

    PubMed

    Murray, Tracey Arnold

    2014-01-01

    The ability to read, interpret, and evaluate articles in the primary literature are important skills that science majors will use in graduate school and professional life. Because of this, it is important that students are not only exposed to the primary literature in undergraduate education, but also taught how to read and interpret these articles. To achieve this objective, POGIL activities were designed to use the primary literature in a majors biochemistry sequence. Data show that students were able to learn content from the literature without separate activities or lecture. Students also reported an increase in comfort and confidence in approaching the literature as a result of the activities.

  2. Using a virtual patient activity to teach nurse prescribing.

    PubMed

    Hurst, Heather M; Marks-Maran, Diane

    2011-05-01

    The Faculty of Health and Social Care Sciences at Kingston University/St George's University of London (KU/SGUL) provides a module to train registered nurses to qualify as independent nurse prescribers. During the programme the participants engage in an online learning activity using a virtual patient (VP). The aim of this VP activity is to enable students to consolidate their learning and to practice the range of skills that the students have been developing related to prescribing. The activity was designed by the module leader and was run as a pilot on two groups of students (n = 34). An evaluative study was undertaken on the value of this blended learning activity to the student and their prescribing practice. This paper presents the development, implementation and evaluation of the VP activity. Findings showed that the VP activity was perceived as being particular useful for helping them to learn the skills of patient history/assessment, decision-making and prescription writing. The VP was also perceived as being helpful in developing their confidence.

  3. Integrated Turbine Tip Clearance and Gas Turbine Engine Simulation

    NASA Technical Reports Server (NTRS)

    Chapman, Jeffryes W.; Kratz, Jonathan; Guo, Ten-Huei; Litt, Jonathan

    2016-01-01

    Gas turbine compressor and turbine blade tip clearance (i.e., the radial distance between the blade tip of an axial compressor or turbine and the containment structure) is a major contributing factor to gas path sealing, and can significantly affect engine efficiency and operational temperature. This paper details the creation of a generic but realistic high pressure turbine tip clearance model that may be used to facilitate active tip clearance control system research. This model uses a first principles approach to approximate thermal and mechanical deformations of the turbine system, taking into account the rotor, shroud, and blade tip components. Validation of the tip clearance model shows that the results are realistic and reflect values found in literature. In addition, this model has been integrated with a gas turbine engine simulation, creating a platform to explore engine performance as tip clearance is adjusted. Results from the integrated model explore the effects of tip clearance on engine operation and highlight advantages of tip clearance management.

  4. An Activity to Teach Students about Schematic Processing

    ERIC Educational Resources Information Center

    Isbell, Linda M.; Tyler, James M.; Burns, Kathleen C.

    2007-01-01

    We designed a classroom activity to foster students' understanding of what schemas are and how they function. We used a video of the instructor as an infant to illustrate how schemas influence gender stereotyping. Before the video, we told students that the baby was either a boy or a girl. After the video, students rated whether the baby would…

  5. Learning Through Movement: Teaching Cognitive Content through Physical Activities.

    ERIC Educational Resources Information Center

    Werner, Peter H.; Burton, Elsie C.

    Action-oriented learning activities are focused on in this book which attempts to outline an approach for stimulating and motivating children to learn through movement. The book is divided into five parts, each dealing with an aspect of the elementary school curriculum. Part one is concerned with the language arts and is divided into three…

  6. Activities for Teaching Positive Psychology: A Guide for Instructors

    ERIC Educational Resources Information Center

    Froh, Jeffrey J., Ed.; Parks, Acacia C., Ed.

    2012-01-01

    Positive psychology is a rapidly expanding area of study that is of great interest to students at the graduate, undergraduate, and high school levels. But the field is so broad that teachers who want to cover all the bases when designing a positive psychology course may have difficulty locating and selecting materials. "Activities for Teaching…

  7. Using an Active-Learning Approach to Teach Epigenetics

    ERIC Educational Resources Information Center

    Colon-Berlingeri, Migdalisel

    2010-01-01

    Epigenetics involves heritable changes in gene expression that do not involve alterations in the DNA sequence. I developed an active-learning approach to convey this topic to students in a college genetics course. I posted a brief summary of the topic before class to stimulate exchange in cooperative groups. During class, we discussed the…

  8. Ezines: A Constructivist Instructional Activity for Teaching Diagnosis and Psychopathology

    ERIC Educational Resources Information Center

    Jones, Karyn Dayle; Granello, Paul F.

    2008-01-01

    Ezines (electronic zines) are independently made, online publications that can provide creative, pedagogical possibilities for constructivist learning in counselor education and, specifically, the diagnosis class. Making ezines about mental disorders and psychopathology allows students to engage in active learning about important topics while…

  9. Using Challenge Course Activities to Teach Organizational Ethics

    ERIC Educational Resources Information Center

    Goltz, Sonia M.; Hietapelto, Amy B.

    2006-01-01

    Few learning experiences give students immediate feedback on ethical and unethical behaviors and provide opportunities to repeatedly practice effective behaviors. This article describes how the authors have used challenge course activities to stimulate students to observe their own and others' ethical and unethical behaviors. Specifically, these…

  10. Developing a Repertoire of Activities for Teaching Physical Science.

    ERIC Educational Resources Information Center

    Cain, Peggy W.

    This activity manual is divided into 15 units which focus on: the nature of science; metric measurements; properties of matter; energy; atomic structure; chemical reactions; acids, bases, and salts; temperature and heat; readioactivity; mechanics; wave motion, sound, and light; static charges and current electricity magnetism and electromagnetism;…

  11. Creative Activities in the Language Experience Approach to Teaching Reading.

    ERIC Educational Resources Information Center

    Brennan, Alison

    This study was conducted to determine the effect that hands-on, creative activity using the Language Experience Approach would have on language usage in students' written stories. Twenty-five fifth grade students were randomly divided into three sample groups. Sample A received hands-on, creative stimulus and art materials; Sample B looked at and…

  12. Teaching Writing. Three Seasonal Activities to Hone Kids' Observation Skills.

    ERIC Educational Resources Information Center

    Power, Brenda

    1997-01-01

    The seasonal activities presented are: observing herbs to encourage use of the senses in writing; watching a jack-o'-lantern wither to learn skills in writing details; and building snowmen to learn to explain a string of events in writing. (SM)

  13. Tips from the Classroom.

    ERIC Educational Resources Information Center

    Mazzillo, Tania Maria; And Others

    1994-01-01

    Records teachers' ideas on several topics. These include becoming a teacher/researcher convert; suggestions for juggling research recordkeeping and teaching; three systems for taking notes in class; turning the lesson plan into a research tool; involving students in self-exploration; students' experience with classroom cheating. (10 references)…

  14. Enhancing Student Engagement and Active Learning through Just-in-Time Teaching and the Use of Powerpoint

    ERIC Educational Resources Information Center

    Wanner, Thomas

    2015-01-01

    This instructional article is about an innovative teaching approach for enhancing student engagement and active learning in higher education through a combination of just-in-time teaching and the use of PowerPoint technology. The central component of this approach was students' pre-lecture preparation of a short PowerPoint presentation in which…

  15. Teaching Programming by Emphasizing Self-Direction: How Did Students React to the Active Role Required of Them?

    ERIC Educational Resources Information Center

    Isomottonen, Ville; Tirronen, Ville

    2013-01-01

    Lecturing is known to be a controversial form of teaching. With massed classrooms, in particular, it tends to constrain the active participation of students. One of the remedies applied to programming education is to use technology that can vitalize interaction in the classroom, while another is to base teaching increasingly on programming…

  16. The Big Jump: A Classroom Guide for Teaching Insurance to Teenagers and Young Adults through Creative Activities.

    ERIC Educational Resources Information Center

    Credit Union National Association, Inc., Madison, WI.

    This kit contains a teaching guide with objectives, answers, and instructions for each activity and spirit masters color coded to correspond with the appropriate chapter in the teaching guide. Five program segments are presented: (1) introduction to insurance; (2) homeowners/renters insurance; (3) automobile and motorcycle insurance; (4) health…

  17. Gas only nozzle fuel tip

    DOEpatents

    Bechtel, William Theodore; Fitts, David Orus; DeLeonardo, Guy Wayne

    2002-01-01

    A diffusion flame nozzle gas tip is provided to convert a dual fuel nozzle to a gas only nozzle. The nozzle tip diverts compressor discharge air from the passage feeding the diffusion nozzle air swirl vanes to a region vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes in the end cap plate of the nozzle tip. In a preferred embodiment, the nozzle gas tip defines a cavity for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings defined in the end cap plate.

  18. Gardening Health and Safety Tips

    MedlinePlus

    ... Health History Parent Information Vaccines & Immunizations Healthy Living Gardening Health and Safety Tips Recommend on Facebook Tweet Share Compartir Gardening can be a great way to enjoy the ...

  19. Implementation of Active Teaching Methods and Emerging Topics in Photogrammetry and Remote Sensing Subjects

    NASA Astrophysics Data System (ADS)

    Kosmatin Fras, M.; Grigillo, D.

    2016-06-01

    Fast technological developments in photogrammetry and remote sensing areas demand quick and steady changes in the education programme and its realization. The university teachers and assistants are faced with ensuring the learning materials, data and software for practical lessons, as well as project proposals for student's team work and bachelor or master thesis. In this paper the emerging topics that already have a considerable impact in the practice are treated mostly from the educational aspect. These relatively new topics that are considered in this paper are unmanned aerial systems for spatial data collection, terrestrial and aerial laser scanning, mobile mapping systems, and novelties in satellite remote sensing. The focus is given to practical implementation of these topics into the teaching and learning programme of Geodesy and Geoinformation at the University of Ljubljana, Faculty of Civil and Geodetic Engineering, and experiences gained by the authors so far. Together with the technological advances, the teaching approaches must be modernized as well. Classical approaches of teaching, where a lecturer gives lecture ex cathedra and students are only listeners, are not effective enough. The didactics science of teaching has developed and proved in the practice many useful approaches that can better motivate students for more active learning. We can use different methods of team work like pro et contra debate, buzzing groups, press conference, moderated discussion etc. An experimental study on active teaching methods in the class of students of the Master programme of Geodesy and Geoinformation has been made and the results are presented. After using some new teaching methods in the class, the students were asked to answer two types of a questionnaire. First questionnaire was the standard form developed by Noel Entwistle, an educational psychologist who developed the Approaches to Studying Inventory (ASI) for identifying deep and surface approaches to

  20. The importance of space policy teaching in communicating space activities to society [rapid communication

    NASA Astrophysics Data System (ADS)

    Reibaldi, G. G.

    2003-12-01

    The governments' priority and budgets for space activities are steadily decreasing and the importance of space activities is not any longer reaching the front pages of the newspaper, as in the 1960s. On the other hand in Europe the people, at large, have shown an important interest and support for space activities. A contribution to bridge the gap between decreasing funding and important support of citizen can come from teaching space policy in universities as well as in special workshops for government, industrial and military circles. The paper will outline a course that fulfils this goal.

  1. Active-Learning Laboratory Session to Teach the Four M's of Diabetes Care

    PubMed Central

    Plake, Kimberly S.; Nash, Christiane L.; Shepler, Brian M.

    2009-01-01

    Objective To implement an active-learning methodology for teaching diabetes care to pharmacy students and evaluate its effectiveness. Design Laboratory instruction was divided into 4 primary areas of diabetes care, referred to by the mnemonic, the 4 M's: meal planning, motion, medication, and monitoring. Students participated in skill-based learning laboratory stations and in simulated patient experiences. A pretest, retrospective pretest, and posttest were administered to measure improvements in students' knowledge about diabetes and confidence in providing care to diabetes patients. Assessment Students knowledge of and confidence in each area assessed improved. Students enjoyed the laboratory session and felt it contributed to their learning. Conclusion An active-learning approach to teaching diabetes care allowed students to experience aspects of the disease from the patient's perspective. This approach will be incorporated in other content areas. PMID:19513160

  2. Some Activities in the Regional Collaborative for Excellence in Science Teaching

    NASA Astrophysics Data System (ADS)

    Roberts, Jim; Crocker, Betty

    2012-10-01

    Select activities that are ``teacher and student engaging,'' will be presented along with a discussion of the goals and objectives of the program. Science and mathematics teachers are recruited from high minority low socio-economic schools to learn science content in an engaging environment of hands-on activities to develop an understanding of basic chemistry, biological cycles, effective teaching strategies, state standards, and how scientific and technological devices work. Participants are taught how to design 5E lesson plans, design pre and post-tests of lessons, and incorporate research based effective teaching models into their class rooms. Prior Collaborative teachers are recruited to act as participants, recruiters, and as mentor teachers for teachers who are joining each cycle of the program.

  3. Activities for Teaching K-6 Math/Science Concepts. Classroom Activities Series - Number 2.

    ERIC Educational Resources Information Center

    Farmer, Walter A.; Farrell, Margaret A.

    This book is a revised edition of one of the products of a project, "Teaching Mathematics and Science Concepts, K-6, funded by the New York State Education Department. The project was a collaborative effort by mathematics and science education faculty at the State University of New York at Albany and representatives of eight school districts in…

  4. Brilliant Writing Tips for Students

    ERIC Educational Resources Information Center

    Copus, Julia

    2010-01-01

    With tips on punctuation, style, grammar and essay structure, this handy guide provides succinct and practical guidance on students most common areas of concern in their written work. Each tip is supplemented by authentic examples of student writing, suggested re-writes, and appropriate self-help exercises. This book contains four parts. Part I:…

  5. Bridging the Macro- and Micro-Divide: Using an Activity Theory Model to Capture Sociocultural Complexity in Mathematics Teaching and Its Development

    ERIC Educational Resources Information Center

    Jaworski, Barbara; Potari, Despina

    2009-01-01

    This paper is methodologically based, addressing the study of mathematics teaching by linking micro- and macro-perspectives. Considering "teaching as activity", it uses "Activity Theory" and, in particular, the "Expanded Mediational Triangle" (EMT) to consider the role of the broader social frame in which classroom teaching is situated.…

  6. Tip cells: master regulators of tubulogenesis?

    PubMed

    Weavers, Helen; Skaer, Helen

    2014-07-01

    The normal development of an organ depends on the coordinated regulation of multiple cell activities. Focusing on tubulogenesis, we review the role of specialised cells or groups of cells that are selected from within tissue primordia and differentiate at the outgrowing tips or leading edge of developing tubules. Tip or leading cells develop distinctive patterns of gene expression that enable them to act both as sensors and transmitters of intercellular signalling. This enables them to explore the environment, respond to both tissue intrinsic signals and extrinsic cues from surrounding tissues and to regulate the behaviour of their neighbours, including the setting of cell fate, patterning cell division, inducing polarity and promoting cell movement and cell rearrangements by neighbour exchange. Tip cells are also able to transmit mechanical tension to promote tissue remodelling and, by interacting with the extracellular matrix, they can dictate migratory pathways and organ shape. Where separate tubular structures fuse to form networks, as in the airways of insects or the vascular system of vertebrates, specialised fusion tip cells act to interconnect disparate elements of the developing network. Finally, we consider their importance in the maturation of mature physiological function and in the development of disease.

  7. Activating a Teaching Philosophy in Social Work Education: Articulation, Implementation, and Evaluation

    ERIC Educational Resources Information Center

    Owens, Larry W.; Miller, J. Jay; Grise-Owens, Erlene

    2014-01-01

    This article describes how to develop a comprehensive teaching philosophy from articulation through implementation to evaluation. Using literature and teaching-learning experiences, we discuss pragmatic steps for using a teaching philosophy to inform, engage, and evaluate teaching-learning. We promote an integrated teaching philosophy to ensure…

  8. Adopting an Active Learning Approach to Teaching in a Research-Intensive Higher Education Context Transformed Staff Teaching Attitudes and Behaviours

    ERIC Educational Resources Information Center

    White, Paul J.; Larson, Ian; Styles, Kim; Yuriev, Elizabeth; Evans, Darrell R.; Rangachari, P. K.; Short, Jennifer L.; Exintaris, Betty; Malone, Daniel T.; Davie, Briana; Eise, Nicole; Mc Namara, Kevin; Naidu, Somaiya

    2016-01-01

    The conventional lecture has significant limitations in the higher education context, often leading to a passive learning experience for students. This paper reports a process of transforming teaching and learning with active learning strategies in a research-intensive educational context across a faculty of 45 academic staff and more than 1,000…

  9. Sirt1 physically interacts with Tip60 and negatively regulates Tip60-mediated acetylation of H2AX

    SciTech Connect

    Yamagata, Kazutsune; Kitabayashi, Issay

    2009-12-25

    Sirt1 appear to be NAD(+)-dependent deacetylase that deacetylates histones and several non-histone proteins. In this study, we identified Sirt1 as a physical interaction partner of Tip60, which is a mammalian MYST-type histone acetyl-transferase that specifically acetylates histones H2A and H4. Although Tip60 also acetylates DNA damage-specific histone H2A variant H2AX in response to DNA damage, which is a process required for appropriate DNA damage response, overexpression of Sirt1 represses Tip60-mediated acetylation of H2AX. Furthermore, Sirt1 depletion by RNAi causes excessive acetylation of H2AX, and enhances accumulation of {gamma}-ray irradiation-induced MDC1, BRCA1, and Rad51 foci in nuclei. These findings suggest that Sirt1 functions as negative regulator of Tip60-mediated acetylation of H2AX. Moreover, Sirt1 deacetylates an acetylated Tip60 in response to DNA damage and stimulates proteasome-dependent Tip60 degradation in vivo, suggesting that Sirt1 negatively regulates the protein level of Tip60 in vivo. Sirt1 may thus repress excessive activation of the DNA damage response and Rad51-homologous recombination repair by suppressing the function of Tip60.

  10. Beyond active learning: a case study of teaching practices in an occupation-centered curriculum.

    PubMed

    Hooper, Barbara

    2006-01-01

    Although occupation-centered curricula are highly promoted, the teaching processes that convey such designs remain unclear. This case study elucidated occupation-centered teaching practices. Interview and observational data were collected over 8 weeks, and analysis involved coding transcriptions, data matrices, concept maps, journaling, and writing. Participants augmented active learning strategies with strategies that linked course topics to the subject of occupation. The use of linking strategies suggested that: (a) course content was treated as two-tiered; (b) neither content nor instructional processes were inherently occupation-centered; and (c) subject-centered education strengthens social learning theories. Although curricula may appear occupation-centered based on a curriculum description and course content, ultimately "linking opportunities" in the classroom constitute an essential feature that demarcates a program as occupation-centered.

  11. A simplified and structured teaching tool for the evaluation and management of pulseless electrical activity.

    PubMed

    Littmann, Laszlo; Bustin, Devin J; Haley, Michael W

    2014-01-01

    Cardiac arrest victims who present with pulseless electrical activity (PEA) usually have a grave prognosis. Several conditions, however, have cause-specific treatments which, if applied immediately, can lead to quick and sustained recovery. Current teaching focuses on recollection of numerous conditions that start with the letters H or T as potential causes of PEA. This teaching method is too complex, difficult to recall during resuscitation, and does not provide guidance to the most effective initial interventions. This review proposes a structured algorithm that is based on the differentiation of the PEA rhythm into narrow- or wide-complex subcategories, which simplifies the working differential and initial treatment approach. This, in conjunction with bedside ultrasound, can quickly point towards the most likely cause of PEA and thus guide resuscitation.

  12. Teaching clinical communication: a mainstream activity or just a minority sport?

    PubMed

    Silverman, Jonathan

    2009-09-01

    This plenary presentation from the EACH International Conference on Communication in Healthcare in Oslo 2008, takes an honest look at the present state of communication teaching and considers how to take the next steps to move communication into the very centre of medical education. Although clinical communication teaching has become increasingly accepted as a formal component of the medical curriculum, there is still a problem to be faced. Communication still often appears in medical education to be a peripheral element rather than a mainstream activity truly perceived by schools and learners as central to all clinical interactions. This presentation explores why clinical communication often appears to be a minority sport in medical education, considers how to overcome this via integration throughout the curriculum, looks at five specific examples of integration in action, presents a new UK consensus statement which helps integrate communication into the mainstream, and finally explores the progression to maturity in communication curricula.

  13. Using Active Learning to Teach Concepts and Methods in Quantitative Biology.

    PubMed

    Waldrop, Lindsay D; Adolph, Stephen C; Diniz Behn, Cecilia G; Braley, Emily; Drew, Joshua A; Full, Robert J; Gross, Louis J; Jungck, John A; Kohler, Brynja; Prairie, Jennifer C; Shtylla, Blerta; Miller, Laura A

    2015-11-01

    This article provides a summary of the ideas discussed at the 2015 Annual Meeting of the Society for Integrative and Comparative Biology society-wide symposium on Leading Students and Faculty to Quantitative Biology through Active Learning. It also includes a brief review of the recent advancements in incorporating active learning approaches into quantitative biology classrooms. We begin with an overview of recent literature that shows that active learning can improve students' outcomes in Science, Technology, Engineering and Math Education disciplines. We then discuss how this approach can be particularly useful when teaching topics in quantitative biology. Next, we describe some of the recent initiatives to develop hands-on activities in quantitative biology at both the graduate and the undergraduate levels. Throughout the article we provide resources for educators who wish to integrate active learning and technology into their classrooms.

  14. Twelve tips to revitalise problem-based learning.

    PubMed

    Wood, Sarah J; Woywodt, Alexander; Pugh, Mark; Sampson, Ian; Madhavi, Paladugu

    2014-11-17

    Abstract The role of the problem-based learning (PBL) facilitator has seen different interpretations ever since PBL first gained widespread use. What has remained unchanged is the challenge for facilitators to use their knowledge and expertise sparingly and to use their interpersonal skills to improve group dynamics. Medical undergraduates attending PBL sessions have also changed in their skill sets, expectations and the use of technology. Based on the published literature and a recent faculty workshop, we provide PBL facilitators and institutions with 12 tips on how to make PBL more vibrant and interesting. We discuss our tips with reference to published literature and International Academy of Medical Education (AMEE) guidance. Our tips help students to engage with PBL, avoid monotony and make this teaching format more vibrant and fun for all involved. Introducing greater variety to the PBL process may also help with group dynamics by catering for a broader audience with different learning styles. PMID:25401407

  15. Tipping the scales.

    PubMed

    1998-12-01

    In the US, the October 1998 murder of a physician who performed abortions was an outward manifestation of the insidious battle against legal abortion being waged by radical Christian social conservatives seeking to transform the US democracy into a theocracy. This movement has been documented in a publication entitled, "Tipping the Scales: The Christian Right's Legal Crusade Against Choice" produced as a result of a 4-year investigation conducted by The Center for Reproductive Law and Policy. This publication describes how these fundamentalists have used sophisticated legal, lobbying, and communication strategies to further their goals of challenging the separation of church and state, opposing family planning and sexuality education that is not based solely on abstinence, promoting school prayer, and restricting homosexual rights. The movement has resulted in the introduction of more than 300 anti-abortion bills in states, 50 of which have passed in 23 states. Most Christian fundamentalist groups provide free legal representation to abortion clinic terrorists, and some groups solicit women to bring specious malpractice claims against providers. Sophisticated legal tactics are used by these groups to remove the taint of extremism and mask the danger posed to US constitutional principles being posed by "a well-financed and zealous brand of radical lawyers and their supporters." PMID:12294553

  16. At the Tipping Point

    SciTech Connect

    Wiley, H. S.

    2011-02-28

    There comes a time in every field of science when things suddenly change. While it might not be immediately apparent that things are different, a tipping point has occurred. Biology is now at such a point. The reason is the introduction of high-throughput genomics-based technologies. I am not talking about the consequences of the sequencing of the human genome (and every other genome within reach). The change is due to new technologies that generate an enormous amount of data about the molecular composition of cells. These include proteomics, transcriptional profiling by sequencing, and the ability to globally measure microRNAs and post-translational modifications of proteins. These mountains of digital data can be mapped to a common frame of reference: the organism’s genome. With the new high-throughput technologies, we can generate tens of thousands of data points from each sample. Data are now measured in terabytes and the time necessary to analyze data can now require years. Obviously, we can’t wait to interpret the data fully before the next experiment. In fact, we might never be able to even look at all of it, much less understand it. This volume of data requires sophisticated computational and statistical methods for its analysis and is forcing biologists to approach data interpretation as a collaborative venture.

  17. Project Activities as a Form of English Language Teaching Based on the Interdisciplinary Approach to Form Intercultural Communicative Competence

    ERIC Educational Resources Information Center

    Redchenko, Nadezhda N.

    2016-01-01

    The authors of this article suggest a thesis about the purpose of teaching a foreign language--it is student's communicative activities, i.e. learning a foreign language in practice. The teacher's task is to encourage activities of every student and to create situations to develop their creative activities in a learning process. New information…

  18. Using Video-Enhanced Activity Schedules and Matrix Training to Teach Sociodramatic Play to a Child with Autism

    ERIC Educational Resources Information Center

    Dauphin, Melissa; Kinney, Elisabeth M.; Stromer, Robert; Koegel, R. L.

    2004-01-01

    We evaluated an intervention package for teaching generative sociodramatic play activities to a young boy with an autism spectrum disorder. In Phase 1, the boy learned computer activity schedules that featured embedded video models of what to say and do. A 3 x 3 instructional matrix defined 9 activities to be performed involving combinations of 3…

  19. A Design Thinking Approach to Teaching Knowledge Management

    ERIC Educational Resources Information Center

    Wang, Shouhong; Wang, Hai

    2008-01-01

    Pedagogies for knowledge management courses are still undeveloped. This Teaching Tip introduces a design thinking approach to teaching knowledge management. An induction model used to guide students' real-life projects for knowledge management is presented. (Contains 1 figure.)

  20. Teaching Gerontology through Distance Education: What We Have Learned.

    ERIC Educational Resources Information Center

    Burrow, James L.; Glass, J. Conrad, Jr.

    2001-01-01

    Outlines issues, teaching tips, things to avoid, problems, and advantages of using video/cable/interactive television for gerontology education. Presents concerns for learners, participation issues, and other factors related to teaching gerontology using the Internet. (SK)

  1. The SERC K12 Educators Portal to Teaching Activities and Pedagogic Approaches

    NASA Astrophysics Data System (ADS)

    Larsen, K.; Kirk, K. B.; Manduca, C. A.; Ledley, T. S.; Schmitt, L.

    2013-12-01

    The Science Education Resource Center (SERC) has created a portal to information for K12 educators to provide high-quality grade level appropriate materials from a wide variety of projects and topics. These materials were compiled across the SERC site, showcasing materials that were created for, or easily adaptable to, K12 classrooms. This resource will help support implementation of Next Generation Science Standards by assisting educators in finding innovative resources to address areas of instruction that are conceptually different than previous national and state science standards. Specifically, the K12 portal assists educators in learning about approaches that address the cross-cutting nature of science concepts, increasing students quantitative reasoning and numeracy skills, incorporating technology such as GIS in the classroom, and by assisting educators of all levels of K12 instruction in using relevant and meaningful ways to teach science concepts. The K12 portal supports educators by providing access to hundreds of teaching activities covering a wide array of science topics and grade levels many of which have been rigorously reviewed for pedagogic quality and scientific accuracy. The portal also provides access to web pages that enhance teaching practices that help increase student's system thinking skills, make lectures interactive, assist instructors in conducting safe and effective indoor and outdoor labs, providing support for teaching energy and climate literacy principles, assisting educators in addressing controversial content, provide guidance in engaging students affective domain, and provides a collection of tools for making teaching relevant in 21st century classrooms including using GIS, Google Earth, videos, visualizations and simulations to model and describe scientific concepts. The portal also provides access to material for specific content and audiences by (1) Supporting AGIs 'Map your World' week to specifically highlight teaching

  2. Student Reciprocal Peer Teaching as a Method for Active Learning: An Experience in an Electrotechnical Laboratory

    NASA Astrophysics Data System (ADS)

    Muñoz-García, Miguel A.; Moreda, Guillermo P.; Hernández-Sánchez, Natalia; Valiño, Vanesa

    2012-10-01

    Active learning is one of the most efficient mechanisms for learning, according to the psychology of learning. When students act as teachers for other students, the communication is more fluent and knowledge is transferred easier than in a traditional classroom. This teaching method is referred to in the literature as reciprocal peer teaching. In this study, the method is applied to laboratory sessions of a higher education institution course, and the students who act as teachers are referred to as "laboratory monitors." A particular way to select the monitors and its impact in the final marks is proposed. A total of 181 students participated in the experiment, experiences with laboratory monitors are discussed, and methods for motivating and training laboratory monitors and regular students are proposed. The types of laboratory sessions that can be led by classmates are discussed. This work is related to the changes in teaching methods in the Spanish higher education system, prompted by the Bologna Process for the construction of the European Higher Education Area

  3. Pearls for Publishing Papers: Tips and Tricks

    PubMed Central

    Ashique, Karalikkattil T; Kaliyadan, Feroze

    2016-01-01

    With the stringent regulations from various academic bodies making it desirable for a post graduate resident to have submitted an original article prior to appearance for their exams or those working in teaching institutions to have published articles to claim credit for applying for promotions and private practitioners to increase their visibility on the academic front, paper, everyone is on a publishing spree. In this article, we attempt to elucidate the processes involved in publication; approaching it in a systematic and practical manner, incorporating some tips and tricks. This collection of pearls is aimed to serve as a beginner's guide to scientific writing and publications. The pearls cover assorted topics like- benefits of publications, collecting resources, various tools available and technical processes related to how a manuscript is processed. PMID:26955091

  4. Pearls for Publishing Papers: Tips and Tricks.

    PubMed

    Ashique, Karalikkattil T; Kaliyadan, Feroze

    2016-01-01

    With the stringent regulations from various academic bodies making it desirable for a post graduate resident to have submitted an original article prior to appearance for their exams or those working in teaching institutions to have published articles to claim credit for applying for promotions and private practitioners to increase their visibility on the academic front, paper, everyone is on a publishing spree. In this article, we attempt to elucidate the processes involved in publication; approaching it in a systematic and practical manner, incorporating some tips and tricks. This collection of pearls is aimed to serve as a beginner's guide to scientific writing and publications. The pearls cover assorted topics like- benefits of publications, collecting resources, various tools available and technical processes related to how a manuscript is processed.

  5. ROP Gtpase–Dependent Dynamics of Tip-Localized F-Actin Controls Tip Growth in Pollen Tubes

    PubMed Central

    Fu, Ying; Wu, Guang; Yang, Zhenbiao

    2001-01-01

    Tip-growing pollen tubes provide a useful model system to study polar growth. Although roles for tip-focused calcium gradient and tip-localized Rho-family GTPase in pollen tube growth is established, the existence and function of tip-localized F-actin have been controversial. Using the green fluorescent protein–tagged actin-binding domain of mouse talin, we found a dynamic form of tip-localized F-actin in tobacco pollen tubes, termed short actin bundles (SABs). The dynamics of SABs during polar growth in pollen tubes is regulated by Rop1At, a Rop GTPase belonging to the Rho family. When overexpressed, Rop1At transformed SAB into a network of fine filaments and induced a transverse actin band behind the tip, leading to depolarized growth. These changes were due to ectopic Rop1At localization to the apical region of the plasma membrane and were suppressed by guanine dissociation inhibitor overexpression, which removed ectopically localized Rop1At. Rop GTPase–activating protein (RopGAP1) overexpression, or Latrunculin B treatments, also recovered normal actin organization and tip growth in Rop1At-overexpressing tubes. Moreover, overexpression of RopGAP1 alone disrupted SABs and inhibited growth. Finally, SAB oscillates and appears at the tip before growth. Together, these results indicate that the dynamics of tip actin are essential for tip growth and provide the first direct evidence to link Rho GTPase to actin organization in controlling cell polarity and polar growth in plants. PMID:11238457

  6. Transjugular Intrahepatic Portosystemic Shunt (TIPS)

    MedlinePlus

    ... ray or ultrasound equipment, a stent, and a balloon-tipped catheter are used. The equipment typically used ... the stent is in the correct position, the balloon is inflated, expanding the stent into place. The ...

  7. Sports Injury Prevention Tip Sheet

    MedlinePlus

    ... Finance Human Resources and Administrative Services Information Technology Marketing and Sales Membership Practice Public Affairs Quality Publishing ... Feedback Recent a a a print email share Facebook Twitter 2016 Sports Injury Prevention Tip Sheet 3/ ...

  8. Search Tips: MedlinePlus

    MedlinePlus

    ... of this page: https://medlineplus.gov/searchtips.html Search Tips To use the sharing features on this page, please enable JavaScript. How do I search MedlinePlus? The search box appears at the top ...

  9. A microfiber coupler tip thermometer.

    PubMed

    Ding, Ming; Wang, Pengfei; Brambilla, Gilberto

    2012-02-27

    A compact thermometer based on a broadband microfiber coupler tip is demonstrated. This sensor can measure a broad temperature interval ranging from room temperature to 1283 °C with sub-200 µm spatial resolution. An average sensitivity of 11.96 pm/°C was achieved for a coupler tip with ~2.5 µm diameter. This is the highest temperature measured with a silica optical fiber device.

  10. Ben's perception of space and subitizing activity: a constructivist teaching experiment

    NASA Astrophysics Data System (ADS)

    MacDonald, Beth L.

    2015-12-01

    This 22-session constructivist teaching experiment set out to investigate a preschool student's number understanding relative to his subitizing activity. Subitizing, a quick apprehension of the numerosity of a small set of items, has been found to characterize perceptual and conceptual processes students rely on as their understanding of number develops. The purpose for this study is to investigate how a preschool student's, Ben, perceptual subitizing activity changed relative to the density of items and the development of his number understanding. Findings indicated that early on in the teaching experiment, Ben's perceptual subitizing activity was influenced by his primary reliance upon the perceived amount of space between items. Shifts in reasoning when perceptually subitizing indicated physiological and experiential development in Ben's number understanding, as Ben described the number of items increasing when the perceived amount of space between items decreased. Number conservation was considered as relevant to these findings because Ben's explanation for why a number could increase or decrease mirrored similar logic when unable to conserve number. Implications of this study suggest nuances in number understanding development which can explain preschool students' reliance upon a more refined set of perceptual subitizing.

  11. Exploring Healthy Eating: Activities for Parents and Children Together.

    ERIC Educational Resources Information Center

    Tufts Univ., Medford, MA. Center on Hunger, Poverty and Nutrition Policy.

    This collection of learning units introduces parents to the role of nutrition in their young child's cognitive development. Designed to be easy to read and useful for families with limited resources, the materials help parents teach their young children good eating habits by offering information, feeding tips, creative activities for parents and…

  12. Lead Poisoning Prevention Tips

    MedlinePlus

    ... CDC.gov . Lead Home Calendar of Events National Lead Poisoning Prevention Week Archived Materials CDC's Childhood Lead Poisoning Prevention Program Advisory Committee (ACCLPP) Current Activities Blood ...

  13. Turbine blade with contoured chamfered squealer tip

    DOEpatents

    Lee, Ching-Pang

    2014-12-30

    A squealer tip formed from a pressure side tip wall and a suction side tip wall extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side tip walls may be positioned along the pressure sidewall and the suction sidewall of the turbine blade, respectively. The pressure side tip wall may include a chamfered leading edge with film cooling holes having exhaust outlets positioned therein. An axially extending tip wall may be formed from at least two outer linear surfaces joined together at an intersection forming a concave axially extending tip wall. The axially extending tip wall may include a convex inner surface forming a radially outer end to an inner cavity forming a cooling system. The cooling system may include one or more film cooling holes in the axially extending tip wall proximate to the suction sidewall, which promotes increased cooling at the pressure and suction sidewalls.

  14. Teach Like a Champ

    ERIC Educational Resources Information Center

    Adams, Caralee

    2011-01-01

    Doug Lemov didn't set out to write a book about the tools of the teaching craft. Working as a managing director of a group of urban charter public schools, he was just trying to get some answers for his teachers. They were hungry for tips on how to really engage kids and solve problems that were getting in the way of their teaching. Lemov observed…

  15. Twitter as a Teaching Practice to Enhance Active and Informal Learning in Higher Education: The Case of Sustainable Tweets

    ERIC Educational Resources Information Center

    Kassens-Noor, Eva

    2012-01-01

    With the rise of Web 2.0, a multitude of new possibilities on how to use these online technologies for active learning has intrigued researchers. While most instructors have used Twitter for in-class discussions, this study explores the teaching practice of Twitter as an active, informal, outside-of-class learning tool. Through a comparative…

  16. Administrators in Action--Managing Public Monies and Processing Emotion in School Activities: A Teaching Case Study

    ERIC Educational Resources Information Center

    Tenuto, Penny L.; Gardiner, Mary E.; Yamamoto, Julie K.

    2015-01-01

    This teaching case describes school administrators in action performing day-to-day leadership tasks, managing public funds in school activities, and interacting with others appropriately. The case focuses on administrative challenges in handling and managing school activity funds. A method for processing emotion is discussed to assist…

  17. Taking a Stand as a Student-Centered Research University: Active and Collaborative Learning Meets Scholarship of Teaching at the University of Alabama

    ERIC Educational Resources Information Center

    Bonner, Judy

    2010-01-01

    This article introduces the University of Alabama, outlines efforts in the scholarship of teaching and active and collaborative learning, and describes plans for continuing the instructional focus as a student-centered research university, where teaching is viewed as a scholarly activity and students are actively engaged in their learning.

  18. Nature Study Tips. Spiders.

    ERIC Educational Resources Information Center

    Mulaik, Stanley B.

    1990-01-01

    Different types of spiders, their ranges and habits are discussed. Activities associated with the study of spiders are suggested. Four references are listed which may be of interest to beginners. (CW)

  19. Self-efficacy theory and the theory of planned behavior: teaching physically active physical education classes.

    PubMed

    Martin, Jeffrey J; Kulinna, Pamela Hodges

    2004-09-01

    The purpose of our investigation was to examine determinants of teachers' intentions to teach physically active physical education classes (i.e., spend at least 50% of class time with the students engaged in moderate to vigorous physical activity). Based on the theory of planned behavior, a model was examined hypothesizing that teachers' intentions were determined by subjective norm, attitude, and perceived behavioral control. Grounded in self-efficacy theory, it was hypothesized that program goal importance and hierarchical and barrier self-efficacy would also predict intention. Using a series of hierarchical regression analyses, the theory of planned behavior was supported by accounting for 59% of the variance in intention due to attitude, perceived behavioral control, and subjective norm. Self-efficacy theory based variables received minimal support.

  20. From Sand to Rock: a teaching activity to introduce beach dynamics.

    NASA Astrophysics Data System (ADS)

    Gravina, Teresita

    2015-04-01

    The Italian coastline is about 7,500 km long; approximately 53% of the coastlines are low or deltaic coastlines, while 3,240 km were mainly composed of sand or gravel beaches. Most of the Italian coastal environment suffers from intense and growing urbanization, tourism and industry pressure, which could partly explain that 42% of Italian beaches experience erosion. Terracina is situated Lazio (Central Italy), a region strongly impacted by coastal erosion, and for this reason we organized a teaching activity, carried out with fourth year high school classes, in order to help students to understand sand beach dynamics, acquisition of geology issues and land conservation and preservation skills. We decided to focus our activity on the mineralogical composition of beach sand in order to relate beach formations with the geological evolution of the territory. Sand beach minerals were used as tracers in order to support students to understand dynamics that influence beach formations. In addition to mineral characteristic recognition, this activity allows us to introduce the beach balance concept and the phenomena that regulate sediment balance, in order to allow students to consider beaches as a resource which needs to be preserved. Sand mineralogical composition data is treated in a worksheet to elaborate simple statistical analysis in order to recognize the mineral composition of Terracina beach sand's rock sources. This exercise allows students to find relationships between regional geology and beach sand's composition. Finally, statistical evidence could be compared with geological maps of the area in order to find the probable provenance of sand's rock source and rocks recognition thanks to related morphologies. Our main purpose was to help students to understand that beaches are dynamic systems subject to anthropogenic pressure and for this reason they needed to be preserved. Proposed teaching activities involve topics related to students' living territory and to

  1. Meta-Teaching: Meaning and Strategy

    ERIC Educational Resources Information Center

    Chen, Xiaoduan

    2013-01-01

    Meta-teaching is the knowledge and reflection on teaching based on meta-ideas. It is the teaching about teaching, a teaching process with practice consciously guided by thinking, inspiring teachers to teach more effectively. Meta-teaching is related to the knowledge, inspection and amendment of teaching activities in terms of their design,…

  2. Root tips moving through soil

    PubMed Central

    Curlango-Rivera, Gilberto

    2011-01-01

    Root elongation occurs by the generation of new cells from meristematic tissue within the apical 1–2 mm region of root tips. Therefore penetration of the soil environment is carried out by newly synthesized plant tissue, whose cells are inherently vulnerable to invasion by pathogens. This conundrum, on its face, would seem to reflect an intolerable risk to the successful establishment of root systems needed for plant life. Yet root tip regions housing the meristematic tissues repeatedly have been found to be free of microbial infection and colonization. Even when spore germination, chemotaxis, and/or growth of pathogens are stimulated by signals from the root tip, the underlying root tissue can escape invasion. Recent insights into the functions of root border cells, and the regulation of their production by transient exposure to external signals, may shed light on long-standing observations. PMID:21455030

  3. Optical fiber meta-tips

    NASA Astrophysics Data System (ADS)

    Principe, Maria; Micco, Alberto; Crescitelli, Alessio; Castaldi, Giuseppe; Consales, Marco; Esposito, Emanuela; La Ferrara, Vera; Galdi, Vincenzo; Cusano, Andrea

    2016-04-01

    We report on the first example of a "meta-tip" configuration that integrates a metasurface on the tip of an optical fiber. Our proposed design is based on an inverted-Babinet plasmonic metasurface obtained by patterning (via focused ion beam) a thin gold film deposited on the tip of an optical fiber, so as to realize an array of rectangular aperture nanoantennas with spatially modulated sizes. By properly tuning the resonances of the aperture nanoantennas, abrupt variations can be impressed in the field wavefront and polarization. We fabricated and characterized several proof-of-principle prototypes operating an near-infrared wavelengths, and implementing the beam-steering (with various angles) of the cross-polarized component, as well as the excitation of surface waves. Our results pave the way to the integration of the exceptional field-manipulation capabilities enabled by metasurfaces with the versatility and ubiquity of fiber-optics technological platforms.

  4. Materials for advanced turbine engines. Volume 1: Advanced blade tip seal system

    NASA Technical Reports Server (NTRS)

    Zelahy, J. W.; Fairbanks, N. P.

    1982-01-01

    Project 3, the subject of this technical report, was structured toward the successful engine demonstration of an improved-efficiency, long-life, tip-seal system for turbine blades. The advanced tip-seal system was designed to maintain close operating clearances between turbine blade tips and turbine shrouds and, at the same time, be resistant to environmental effects including high-temperature oxidation, hot corrosion, and thermal cycling. The turbine blade tip comprised an environmentally resistant, activated-diffussion-bonded, monocrystal superalloy combined with a thin layer of aluminium oxide abrasive particles entrapped in an electroplated NiCr matrix. The project established the tip design and joint location, characterized the single-crystal tip alloy and abrasive tip treatment, and established the manufacturing and quality-control plans required to fully process the blades. A total of 171 blades were fully manufactured, and 100 were endurance and performance engine-tested.

  5. Using Teaching Portfolios.

    ERIC Educational Resources Information Center

    Painter, Bryan

    2001-01-01

    Teaching portfolios are not just scrapbooks of random assignments and student work samples, but represent teachers' evolving reflections and analyses measured against rigorous standards. Thoughtful reflection, not a color printer, is the key to portfolio success. Tips on assembling suitable "artifacts" and handling anxiety and time constraints are…

  6. Tipping Points in Texas Rivers

    NASA Astrophysics Data System (ADS)

    Phillips, Jonathan

    2016-04-01

    Anticipating geomorphic tipping points requires that we learn from the past. Major geomorphic changes in coastal plain rivers of Texas resulting in river metamorphosis or regime shifts were identified, and the major driving factors determined. Nine fluvial tipping points were identified from contemporary observations, historical records, and Quaternary reconstructions. Two of the tipping points (between general aggrading and degrading valley states) are associated with reversals in a fundamental system control (sea-level). One (stable or aggrading vs. degrading channels) is associated with an abrupt change in sediment supply due to dam construction, and two others (changes from meandering to anastomosing channel patterns, and different anastomosis styles) are similarly related to changes in sediment supply and/or transport capacity, but with additional elements of historical contingency. Three tipping points are related to avulsions. One, from a regime dominated to reoccupation of former channels to one dominated by progradation into flood basins, is driven by progressive long term filling of incised valleys. Another, nodal avulsions, are driven by disturbances associated with tectonics or listric faults. The third, avulsions and related valley metamorphosis in unfilled incised valleys, is due to fundamental dynamical instabilities within the fluvial system. This synthesis and analysis suggests that geomorphic tipping points are sometimes associated with general extrinsic or intrinsic (to the fluvial system) environmental change, independent of any disturbances or instabilities. Others are associated with natural (e.g., tectonic) or human (dams) disturbances, and still others with intrinsic geomorphic instabilities. This suggests that future tipping points will be equally diverse with respect to their drivers.

  7. Tips from the Classroom.

    ERIC Educational Resources Information Center

    Pocorobba, Janet; And Others

    1996-01-01

    Presents activities found to be useful in English-as-a-Second-Language (ESL) classes, including a game in which the teacher guesses the meaning of words in students' native tongues; an exercise in which students write predictions, such as weather forecasting, in English; a game in which students explain the meaning of selected idioms in their own…

  8. Tips from the Classroom.

    ERIC Educational Resources Information Center

    Glick, Christopher; Niemeyer, Susan; Rebscher, Mary; Smith, Bryan; Turner, Rebecca Heaton

    1998-01-01

    Five ideas for English-as-a-Second-Language classroom activities are described, including a geography pronunciation drill, a project in which students design retail stores, a real-life business role-playing exercise, student-designed coats of arms, and use of prizes for student motivation, followed by prize-related assignments. (MSE)

  9. Survey on astrobiology research and teaching activities within the United kingdom.

    PubMed

    Dartnell, Lewis R; Burchell, Mark J

    2009-10-01

    While astrobiology is apparently growing steadily around the world, in terms of the number of researchers drawn into this interdisciplinary area and teaching courses provided for new students, there have been very few studies conducted to chart this expansion quantitatively. To address this deficiency, the Astrobiology Society of Britain (ASB) conducted a questionnaire survey of universities and research institutions nationwide to ascertain the current extent of astrobiology research and teaching in the UK. The aim was to provide compiled statistics and an information resource for those who seek research groups or courses of study, and to facilitate new interdisciplinary collaborations. The report here summarizes details gathered on 33 UK research groups, which involved 286 researchers (from undergraduate project students to faculty members). The survey indicates that around 880 students are taking university-level courses, with significant elements of astrobiology included, every year in the UK. Data are also presented on the composition of astrobiology students by their original academic field, which show a significant dominance of physics and astronomy students. This survey represents the first published systematic national assessment of astrobiological academic activity and indicates that this emerging field has already achieved a strong degree of penetration into the UK academic community.

  10. Bulgarian Activities in the Project COSMOS: An Advanced Scientific Repository for Science Teaching and Learning

    NASA Astrophysics Data System (ADS)

    Marchev, D.; Kyurkchieva, D.; Borisov, B.; Radeva, V.

    2010-09-01

    One of the main purposes of the European educational project COSMOS (co-funded by the European Commission under the program eContentplus), is to create an experimental laboratory for the school of tomorrow in order to improve the education in astronomy by expanding the resources for teaching and learning in schools and universities and by providing more challenging and authentic learning experiences for students. A large educational database was created as a result of the project activities made by 15 partner institutions. The unusual electronic "library" offers to students and teachers unique educational resources: learning scenarios, images, presentations, videos and animations (most of them are impossible to produce in any scientific laboratory). It is freely accessible to anyone, anywhere, anytime. Our poster presents the contribution of the Shumen university (the only partner from Bulgaria) in the project: uploading more than 12000 astronomical images in the COSMOS portal; creation of 45 learning scenarios; holding 5 teaching workshops at different places for more than 100 Bulgarian teachers to use the possibilities of the COSMOS portal (including creation of their own learning scenarios). Our analysis of the questionnaires filled-in by the participating teachers shows the necessity of such projects and workshops.

  11. How to conduct a workshop on medical writing: Tips, advice and experience sharing.

    PubMed

    Rathore, Farooq Azam; Mansoor, Sahibzada Nasir

    2015-06-01

    Medical writing has become an essential skill for anybody in academia and engaged in teaching. Workshops on medical writing are an effective way to teach the essential skills of medical writing to students and faculty members. There is a huge demand for these workshops all around the globe. Usually there is no curriculum of medical writing for the undergraduates or dedicated structured training sessions for the faculty members. One of the authors won an Author AID grant to conduct a series of workshops on medical writing. Eight workshops were conducted in three months, benefitting more than 200 students and faculty staff. We share our experience of holding this successful series of workshops with the aim that it might serve as a guide for researchers and faculty members who are eager to share and transfer their skills and knowledge. We also offer lessons learnt during this educational activity, tips to improve the quality and delivery of the content with limited resources and maximizing the impact. Experienced medical writers need to conduct these workshops to transfer their skills and to facilitate their colleagues and students to become better medical writers. Planning, rehearsal, motivation, resource management, good team work, audience analysis and feedback can make a workshop successful. Well prepared workshop content delivered in an interactive way with a variety of activities makes the workshop an engaging and interesting educational activity.

  12. Scanning tip microwave near field microscope

    DOEpatents

    Xiang, X.D.; Schultz, P.G.; Wei, T.

    1998-10-13

    A microwave near field microscope has a novel microwave probe structure wherein the probing field of evanescent radiation is emitted from a sharpened metal tip instead of an aperture or gap. This sharpened tip, which is electrically and mechanically connected to a central electrode, extends through and beyond an aperture in an end wall of a microwave resonating device such as a microwave cavity resonator or a microwave stripline resonator. Since the field intensity at the tip increases as the tip sharpens, the total energy which is radiated from the tip and absorbed by the sample increases as the tip sharpens. The result is improved spatial resolution without sacrificing sensitivity. 17 figs.

  13. Scanning tip microwave near field microscope

    DOEpatents

    Xiang, Xiao-Dong; Schultz, Peter G.; Wei, Tao

    1998-01-01

    A microwave near field microscope has a novel microwave probe structure wherein the probing field of evanescent radiation is emitted from a sharpened metal tip instead of an aperture or gap. This sharpened tip, which is electrically and mechanically connected to a central electrode, extends through and beyond an aperture in an endwall of a microwave resonating device such as a microwave cavity resonator or a microwave stripline resonator. Since the field intensity at the tip increases as the tip sharpens, the total energy which is radiated from the tip and absorbed by the sample increases as the tip sharpens. The result is improved spatial resolution without sacrificing sensitivity.

  14. Blade tip timing (BTT) uncertainties

    NASA Astrophysics Data System (ADS)

    Russhard, Pete

    2016-06-01

    Blade Tip Timing (BTT) is an alternative technique for characterising blade vibration in which non-contact timing probes (e.g. capacitance or optical probes), typically mounted on the engine casing (figure 1), and are used to measure the time at which a blade passes each probe. This time is compared with the time at which the blade would have passed the probe if it had been undergoing no vibration. For a number of years the aerospace industry has been sponsoring research into Blade Tip Timing technologies that have been developed as tools to obtain rotor blade tip deflections. These have been successful in demonstrating the potential of the technology, but rarely produced quantitative data, along with a demonstration of a traceable value for measurement uncertainty. BTT technologies have been developed under a cloak of secrecy by the gas turbine OEM's due to the competitive advantages it offered if it could be shown to work. BTT measurements are sensitive to many variables and there is a need to quantify the measurement uncertainty of the complete technology and to define a set of guidelines as to how BTT should be applied to different vehicles. The data shown in figure 2 was developed from US government sponsored program that bought together four different tip timing system and a gas turbine engine test. Comparisons showed that they were just capable of obtaining measurement within a +/-25% uncertainty band when compared to strain gauges even when using the same input data sets.

  15. Library Management Tips that Work

    ERIC Educational Resources Information Center

    Smallwood, Carol, Ed.

    2011-01-01

    There's no shortage of library management books out there--but how many of them actually tackle the little details of day-to-day management, the hard-to-categorize things that slip through the cracks of a larger handbook? "Library Management Tips that Work" does exactly that, addressing dozens of such issues facing library managers, including: (1)…

  16. Turbine blade tip flow discouragers

    SciTech Connect

    Bunker, R.S.

    2000-02-22

    A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0{degree} to about 60{degree} with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  17. Assigning Effective Homework. Classroom Tips

    ERIC Educational Resources Information Center

    American Federation of Teachers (NJ), 2010

    2010-01-01

    Each new school year brings high hopes, great expectations and challenges for both new and seasoned educators. The American Federation of Teachers (AFT) has developed a series called "Classroom Tips" to help educators start the year right and anticipate the year ahead. Over the past 40 years, most research studies on homework have found that…

  18. Turbine blade tip flow discouragers

    DOEpatents

    Bunker, Ronald Scott

    2000-01-01

    A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  19. Evaluation of nasal tip surgery.

    PubMed

    Friedman, W H; Biller, H F

    1975-09-01

    Nasal tip surgery has been evaluated with respect to correction of the lower lateral cartilages. Indications, techniques, results, and complications related to three generic approaches to the lower lateral cartilages are described. In 673 consecutive rhinoplasties the commonest type of nasal tip surgery was excisional, utilizing either a marginal or cartilage splitting technique. These techniques were utilized: 1. to accomplish debulking, and 2. to accomplish the installation of facets. The excisional technique found its greatest utility in primary rhinoplasties. The version technique, utilizing a change of direction of the thrust of the lower lateral cartilages was utilized in a variety of situations, particularly for the correction of moderately congenitally hypoplastic tip cartilages. It also found great utility in surgery of the Negro or cleft palate nose, increasing tip projection, correcting unacceptable bifidity, and in revision rhinoplasty. Augmentation rhinoplasty, utilizing conchal cartilage as an elastic strut was particularly useful for severe hypoplastic cartilage deficits, the Negro nose, columellar retraction, and alar rim deficits. The overall complication rate of lower lateral rhinoplasty was 17.4 percent. The rate of unacceptable complications related to lower lateral rhinoplasty was 2.7 percent.

  20. Top 10 Staff Survival Tips.

    ERIC Educational Resources Information Center

    O'Brien, Laurie

    1995-01-01

    Tips for camp staff on how to survive summer camp include not giving campers sugary drinks before bedtime, setting behavior limits with campers, setting an example by following camp rules, getting enough rest, being fair and consistent, controlling anger, being accountable for actions, asking questions, and being flexible. (LP)

  1. Teaching chemistry concepts using differentiated instruction via tiered labs and activity menus

    NASA Astrophysics Data System (ADS)

    Collins, Betsy C.

    Today's high school classrooms are composed of students with different levels of knowing and ways of understanding. Differentiating the type of work that they are asked to do to achieve the same objective is one way to meet each student's special circumstances on a somewhat equal playing field. By doing so, students are being challenged at their level rather than just blindly going through the same motions that they see others around them doing. Offering students choices to better understand a concept places the student in the driver seat of their educational journey. The purpose of this research project was to design and implement choice activities within the chemistry classroom to more appropriately teach and assess chemistry concepts and assess understanding of those concepts. These choice activities included tiered-laboratory investigations and activity menus. This project was implemented over the course of two trimesters in a high school chemistry classroom. Topics covered included calculating and interpreting density and applying significant figures, calculating and interpreting percent composition with the mole concept, and stoichiometry. The effectiveness of the tiered-labs and activity menus were evaluated using pre and post test comparisons, student surveys, and general in-class observations. Gains in conceptual understanding and student motivation were documented. These findings indicated that allowing choice and leveling of skills to achieve the same conceptual understanding promoted student learning and the overall enjoyment and motivation for learning.

  2. [ELECTRONIC LOGBOOK: LEARNING TOOL AND TEACHING AID FOR THE EVALUATION OF LEARNING ACTIVITIES].

    PubMed

    Scantamburlo, G; Vierset, V; Bonnet, P; Verpoorten, D; Delfosse, C; Ansseau, M

    2016-04-01

    A LogBook is a learning tool and teaching aid I where clinical settings lived during training courses are provided. A LogBook is basically a journal which evidences learning and skills. LogBook provides a means for monitoring student learning, both for the student and for the instructor. It provides a feedback loop for the evaluation of learning activities. This LogBook has been developed for the student's training in psychiatry but it may be extended to all medical disciplines. The authors have developed an electronic logbook to support learning and assessment. In the context of Europe, it has become necessary to set up a LogBook of uniform learning outcomes to assist medical students. PMID:27295902

  3. Evaluation of the tip-bending response in clinically used endoscopes

    PubMed Central

    Rozeboom, Esther D.; Reilink, Rob; Schwartz, Matthijs P.; Fockens, Paul; Broeders, Ivo A. M. J.

    2016-01-01

    Background and study aims: Endoscopic interventions require accurate and precise control of the endoscope tip. The endoscope tip response depends on a cable pulling system, which is known to deliver a significantly nonlinear response that eventually reduces control. It is unknown whether the current technique of endoscope tip control is adequate for a future of high precision procedures, steerable accessories, and add-on robotics. The aim of this study was to determine the status of the tip response of endoscopes used in clinical practice. Materials and methods: We evaluated 20 flexible colonoscopes and five gastroscopes, used in the endoscopy departments of a Dutch university hospital and two Dutch teaching hospitals, in a bench top setup. First, maximal tip bending was determined manually. Next, the endoscope navigation wheels were rotated individually in a motor setup. Tip angulation was recorded with a USB camera. Cable slackness was derived from the resulting hysteresis plot. Results: Only two of the 20 colonoscopes (10 %) and none of the five gastroscopes reached the maximal tip angulation specified by the manufacturer. Four colonoscopes (20 %) and none of the gastroscopes demonstrated the recommended cable tension. Eight colonoscopes (40 %) had undergone a maintenance check 1 month before the measurements were made. The tip responses of these eight colonoscopies did not differ significantly from the tip responses of the other colonoscopes. Conclusion: This study suggests that the majority of clinically used endoscopes are not optimally tuned to reach maximal bending angles and demonstrate adequate tip responses. We suggest a brief check before procedures to predict difficulties with bending angles and tip responses. PMID:27092330

  4. The Effect of Maternal Teaching Talk on Children's Emergent Literacy as a Function of Type of Activity and Maternal Education Level

    ERIC Educational Resources Information Center

    Korat, Ofra

    2009-01-01

    This study examined the extent to which maternal education affects mothers' teaching talk level as a function of activity (book reading vs. looking at a family photo album), and the contribution of maternal teaching talk level during these activities to 88 five- to six-year old children's emergent literacy. Videotaped mother-child interactions…

  5. Teaching Reading.

    ERIC Educational Resources Information Center

    Ricketts, Mary

    1980-01-01

    Described are five approaches to teaching reading: Language Experience, Modified Alphabet, Linguistic, Programmed, and Basal. It is suggested that a good teacher, well trained, certified in his or her profession, an active participant in professional organizations, can teach reading successfully using almost any approach. (KC)

  6. An aquaporin PvTIP4;1 from Pteris vittata may mediate arsenite uptake.

    PubMed

    He, Zhenyan; Yan, Huili; Chen, Yanshan; Shen, Hongling; Xu, Wenxiu; Zhang, Haiyan; Shi, Lei; Zhu, Yong-Guan; Ma, Mi

    2016-01-01

    The fern Pteris vittata is an arsenic hyperaccumulator. The genes involved in arsenite (As(III)) transport are not yet clear. Here, we describe the isolation and characterization of a new P. vittata aquaporin gene, PvTIP4;1, which may mediate As(III) uptake. PvTIP4;1 was identified from yeast functional complement cDNA library of P. vittata. Arsenic toxicity and accumulating activities of PvTIP4;1 were analyzed in Saccharomyces cerevisiae and Arabidopsis. Subcellular localization of PvTIP4;1-GFP fusion protein in P. vittata protoplast and callus was conducted. The tissue expression of PvTIP4;1 was investigated by quantitative real-time PCR. Site-directed mutagenesis of the PvTIP4;1 aromatic/arginine (Ar/R) domain was studied. Heterologous expression in yeast demonstrates that PvTIP4;1 was able to facilitate As(III) diffusion. Transgenic Arabidopsis showed that PvTIP4;1 increases arsenic accumulation and induces arsenic sensitivity. Images and FM4-64 staining suggest that PvTIP4;1 localizes to the plasma membrane in P. vittata cells. A tissue location study shows that PvTIP4;1 transcripts are mainly expressed in roots. Site-directed mutation in yeast further proved that the cysteine at the LE1 position of PvTIP4;1 Ar/R domain is a functional site. PvTIP4;1 is a new represented tonoplast intrinsic protein (TIP) aquaporin from P. vittata and the function and location results imply that PvTIP4;1 may be involved in As(III) uptake.

  7. Lytic Water Dynamics Reveal Evolutionarily Conserved Mechanisms of ATP Hydrolysis by TIP49 AAA+ ATPases

    PubMed Central

    Afanasyeva, Arina; Hirtreiter, Angela; Schreiber, Anne; Grohmann, Dina; Pobegalov, Georgii; McKay, Adam R.; Tsaneva, Irina; Petukhov, Michael; Käs, Emmanuel; Grigoriev, Mikhail; Werner, Finn

    2014-01-01

    Summary Eukaryotic TIP49a (Pontin) and TIP49b (Reptin) AAA+ ATPases play essential roles in key cellular processes. How their weak ATPase activity contributes to their important functions remains largely unknown and difficult to analyze because of the divergent properties of TIP49a and TIP49b proteins and of their homo- and hetero-oligomeric assemblies. To circumvent these complexities, we have analyzed the single ancient TIP49 ortholog found in the archaeon Methanopyrus kandleri (mkTIP49). All-atom homology modeling and molecular dynamics simulations validated by biochemical assays reveal highly conserved organizational principles and identify key residues for ATP hydrolysis. An unanticipated crosstalk between Walker B and Sensor I motifs impacts the dynamics of water molecules and highlights a critical role of trans-acting aspartates in the lytic water activation step that is essential for the associative mechanism of ATP hydrolysis. PMID:24613487

  8. Teaching Core Content Embedded in a Functional Activity to Students with Moderate Intellectual Disability Using a Simultaneous Prompting Procedure

    ERIC Educational Resources Information Center

    Karl, Jennifer; Collins, Belva C.; Hager, Karen D.; Ault, Melinda Jones

    2013-01-01

    The purpose of this study was to investigate the effects of a simultaneous prompting procedure in teaching four secondary students with moderate intellectual disability to acquire and generalize core content embedded in a functional activity. Data gathered within the context of a multiple probe design revealed that all participants learned the…

  9. Keep Taking the Tablets? Assessing the Use of Tablet Devices in Learning and Teaching Activities in the Further Education Sector

    ERIC Educational Resources Information Center

    Fabian, Khristin; MacLean, Donald

    2014-01-01

    This article summarises the methodology and outcomes of an interventionist/action research project to assess the benefits, and potential pitfalls, of the use of mobile devices in learning and teaching activities in a Further Education environment. A bank of 15 tablet devices were purchased and prepared for classroom use. Staff members were…

  10. Student Teachers' Beliefs about Learning and Teaching and Their Participation in Career-Long Learning Activities

    ERIC Educational Resources Information Center

    de Vries, Siebrich; Jansen, Ellen P. W. A.; Helms-Lorenz, Michelle; van de Grift, Wim J. C. M.

    2014-01-01

    Career-long teacher learning is essential to the teaching profession because it is strongly connected with teacher quality and practices. Student teachers in the first stage of their career-long learning continuum, however, vary in the extent to which they participate in learning activities. This study explores the relationship between beliefs…

  11. Behaviors of Students and Teachers in the Command, Practice, and Inclusion Styles of Teaching: Instruction, Feedback, and Activity Level

    ERIC Educational Resources Information Center

    Byra, Mark; Sanchez, Beth; Wallhead, Tristan

    2014-01-01

    Validating selected theoretical assumptions associated with the Spectrum of Teaching Styles is critical to the pursuit of knowledge about effective instructional strategies. To assess these styles, a total of 77 college-aged students at one university enrolled in four physical activity classes and participated in three 50-minute lessons with…

  12. Testing Models: A Key Aspect to Promote Teaching Activities Related to Models and Modelling in Biology Lessons?

    ERIC Educational Resources Information Center

    Krell, Moritz; Krüger, Dirk

    2016-01-01

    This study investigated biology teachers' (N = 148) understanding of models and modelling (MoMo), their model-related teaching activities and relations between the two. A framework which distinguishes five aspects of MoMo in science ("nature of models," "multiple models," "purpose of models," "testing…

  13. Energy Crisis. Teaching Resources. A Special Publication Suggesting School Activities Which Stress Individual Responsibility Towards Energy Crisis Problems.

    ERIC Educational Resources Information Center

    Curry, Wendell; And Others

    This handbook provides public school teachers and administrators of Oregon with teaching ideas and information about the energy crisis. Suggested activities are intended to inform students (kindergarten through community college) about their responsibility toward the energy crisis and to motivate energy conservation. The handbook is divided into…

  14. Using Computer Networking to Increase Active Teaching in General Education Math Classes Containing Students with Mild Disabilities.

    ERIC Educational Resources Information Center

    Hayden, Melissa; And Others

    1992-01-01

    Three middle school teachers of mainstreamed students with mild disabilities used a computer networking system to check student understanding of math concepts. Results indicated that, with coaching on how to use the data generated by the system, teachers increased the amount of time spent on active teaching and providing feedback. (Author/JDD)

  15. Radon Adsorbed in Activated Charcoal--A Simple and Safe Radiation Source for Teaching Practical Radioactivity in Schools and Colleges

    ERIC Educational Resources Information Center

    Al-Azmi, Darwish; Mustapha, Amidu O.; Karunakara, N.

    2012-01-01

    Simple procedures for teaching practical radioactivity are presented in a way that attracts students' attention and does not make them apprehensive about their safety. The radiation source is derived from the natural environment. It is based on the radioactivity of radon, a ubiquitous inert gas, and the adsorptive property of activated charcoal.…

  16. Fractions: Activities and Exercises for Teaching Fractions in Secondary Schools. Series of Caribbean Volunteer Publications, No. 4.

    ERIC Educational Resources Information Center

    Voluntary Services Overseas, Castries (St. Lucia).

    This document contains materials from a half day workshop held at Petit Secondary School for mathematics teachers at Petit Bordel and Troumaca Ontario Secondary School on the island of St. Vincent in the Caribbean. This book advocates the use of activity-based mathematics as a teaching methodology in secondary schools and demonstrates the use of…

  17. An Epistemological Analysis of the Evolution of Didactical Activities in Teaching-Learning Sequences: The Case of Fluids. Special Issue

    ERIC Educational Resources Information Center

    Psillos, D.; Tselfes, Vassilis; Kariotoglou, Petros

    2004-01-01

    In the present paper we propose a theoretical framework for an epistemological modelling of teaching-learning (didactical) activities, which draws on recent studies of scientific practice. We present and analyse the framework, which includes three categories: namely, Cosmos-Evidence-Ideas (CEI). We also apply this framework in order to model a…

  18. Teaching Sight Word Recognition to Preschoolers with Delays Using Activity-Based Intervention and Didactic Instruction: A Comparison Study

    ERIC Educational Resources Information Center

    Hong, Sung-Jin; Kemp, Coral

    2007-01-01

    An alternating treatments design was used to compare the effectiveness of activity-based intervention and didactic instruction to teach sight word reading to four young children with developmental delays attending an inclusive child care centre. Following the collection of baseline measures, the two interventions, counterbalanced for word lists…

  19. The Relationship between Attitudes toward Participation in Physical Activities and Motives for Choosing Teaching Physical Education as a Career

    ERIC Educational Resources Information Center

    Al-Rawahi, Nasser; Al-Yarabi, Ali

    2013-01-01

    This study aims at investigating the relationship between physical education teachers' attitudes toward participation in physical activity and their motives toward choosing physical education as a teaching profession. Two questionnaires with a sample of 98 participants were employed as a data collection vehicle. The results showed that…

  20. A proposal for teaching undergraduate chemistry students carbohydrate biochemistry by problem-based learning activities.

    PubMed

    Figueira, Angela C M; Rocha, Joao B T

    2014-01-01

    This article presents a problem-based learning (PBL) approach to teaching elementary biochemistry to undergraduate students. The activity was based on "the foods we eat." It was used to engage students' curiosity and to initiate learning about a subject that could be used by the future teachers in the high school. The experimental activities (8-12 hours) were related to the questions: (i) what does the Benedict's Reagent detect? and (ii) What is determined by glucose oxidase (GOD)? We also ask the students to compare the results with those obtained with the Lugol reagent, which detects starch. Usually, students inferred that the Benedict reagent detects reducing sugars, while GOD could be used to detect glucose. However, in GOD assay, an open question was left, because the results could be due to contamination of the sugars (particularly galactose) with glucose. Though not stressed, GOD does not oxidize the carbohydrates tested and all the positive results are due to contamination. The activities presented here can be easily done in the high school, because they are simple and non-expensive. Furthermore, in the case of Benedict reaction, it is possible to follow the reduction of Cu (II) "macroscopically" by following the formation of the brick-orange precipitate. The concrete observation of a chemical reaction can motivate and facilitate students understanding about chemistry of life. PMID:24265175

  1. A proposal for teaching undergraduate chemistry students carbohydrate biochemistry by problem-based learning activities.

    PubMed

    Figueira, Angela C M; Rocha, Joao B T

    2014-01-01

    This article presents a problem-based learning (PBL) approach to teaching elementary biochemistry to undergraduate students. The activity was based on "the foods we eat." It was used to engage students' curiosity and to initiate learning about a subject that could be used by the future teachers in the high school. The experimental activities (8-12 hours) were related to the questions: (i) what does the Benedict's Reagent detect? and (ii) What is determined by glucose oxidase (GOD)? We also ask the students to compare the results with those obtained with the Lugol reagent, which detects starch. Usually, students inferred that the Benedict reagent detects reducing sugars, while GOD could be used to detect glucose. However, in GOD assay, an open question was left, because the results could be due to contamination of the sugars (particularly galactose) with glucose. Though not stressed, GOD does not oxidize the carbohydrates tested and all the positive results are due to contamination. The activities presented here can be easily done in the high school, because they are simple and non-expensive. Furthermore, in the case of Benedict reaction, it is possible to follow the reduction of Cu (II) "macroscopically" by following the formation of the brick-orange precipitate. The concrete observation of a chemical reaction can motivate and facilitate students understanding about chemistry of life.

  2. Tip cap for a rotor blade

    NASA Technical Reports Server (NTRS)

    Kofel, W. K.; Tuley, E. N.; Gay, C. H., Jr.; Troeger, R. E.; Sterman, A. P. (Inventor)

    1983-01-01

    A replaceable tip cap for attachment to the end of a rotor blade is described. The tip cap includes a plurality of walls defining a compartment which, if desired, can be divided into a plurality of subcompartments. The tip cap can include inlet and outlet holes in walls thereof to permit fluid communication of a cooling fluid there through. Abrasive material can be attached with the radially outer wall of the tip cap.

  3. The relationship between transformational teaching and adolescent physical activity: the mediating roles of personal and relational efficacy beliefs.

    PubMed

    Bourne, Jessica; Liu, Yan; Shields, Christopher A; Jackson, Ben; Zumbo, Bruno D; Beauchamp, Mark R

    2015-02-01

    The purpose of this study was to examine the extent to which transformational teaching, exhibited by secondary school physical education teachers, predicts within-class physical activity and leisure-time physical activity among adolescents. The study used a prospective observational design and involved data collected from 874 Grade 10 adolescents (M age = 15.41, (SD) = .61). Through use of structural equation modeling, the results revealed that adolescents' perceptions of transformational teaching were positively related to within-class physical activity and leisure-time physical activity, and these effects were mediated by adolescents' estimation of their teacher's confidence in their abilities (i.e. relation-inferred self-efficacy) and self-efficacy beliefs.

  4. A Picture-Based Activity Schedule Intervention to Teach Adults with Mild Intellectual Disability to Use an iPad during a Leisure Activity

    ERIC Educational Resources Information Center

    Chan, Jeffrey Michael; Lambdin, Lindsay; Graham, Kimberly; Fragale, Christina; Davis, Tonya

    2014-01-01

    Individuals with developmental disabilities have limited opportunities to participate in leisure activities, frequently due to lack of skills. The purpose of the current study was to teach three adults diagnosed with mild intellectual disability to use an iPad in the context of playing the video game Angry Birds. We used an adapted multiple…

  5. Laboratory Activity to Teach about the Proliferation of Salmonella in Vegetables.

    PubMed

    Marvasi, Massimiliano; Choudhury, Manika; Teplitski, Max

    2015-12-01

    We designed a three-week laboratory experience that can complement any microbiology teaching laboratory to expand students' knowledge of the ecology of human enteric pathogens outside of their animal hosts. Through their participation in this laboratory activity, students learned that vegetative and reproductive plant parts could be a natural habitat for enteric bacteria such as non-typhoidal strains of Salmonella enterica. This field was recently brought to the forefront of the scientific community and public interest by outbreaks of human illness linked to the consumption of fresh fruits and vegetables. Students were encouraged to develop their own testable hypotheses to compare proliferation of Salmonella enterica sv Typhimurium LT2 in different vegetables: cherry and regular-size tomatoes, onions, lettuce, and yellow and red bell peppers (Escherichia coli can be substituted for BSL1 laboratories). Upon completion of the laboratory experience, students were able to: 1) Develop testable hypotheses addressing the ability of a human pathogen, Salmonella enterica, to colonize and proliferate in vegetables; 2) Determine that different vegetables support the growth of Salmonella to different extents; 3) Conduct statistical analysis and identify any significant differences. The teaching-learning process was assessed with a pre-/posttest, with an average increase in content understanding from ~15% to 85%. We also measured students' proficiency while conducting specific technical tasks, revealing no major difficulties while conducting the experiments. Students indicated satisfaction with the organization and content of the practices. All of the students (100%) agreed that the exercises improved their knowledge of this subject. PMID:26753031

  6. Injector tip for an internal combustion engine

    DOEpatents

    Shyu, Tsu Pin; Ye, Wen

    2003-05-20

    This invention relates to a the tip structure of a fuel injector as used in a internal combustion engine. Internal combustion engines using Homogeneous Charge Compression Ignition (HCCI) technology require a tip structure that directs fuel spray in a downward direction. This requirement necessitates a tip design that is capable of withstanding mechanical stresses associated with the design.

  7. 29 CFR 531.54 - Tip pooling.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAGE PAYMENTS UNDER THE FAIR LABOR STANDARDS ACT OF 1938 Interpretations Payment of Wages to Tipped Employees § 531.54 Tip... his tips for purposes of the Act....

  8. 29 CFR 531.54 - Tip pooling.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAGE PAYMENTS UNDER THE FAIR LABOR STANDARDS ACT OF 1938 Tipped Employees § 531.54 Tip pooling. Where employees practice... received and retained by each individual as his own are counted as his tips for purposes of the...

  9. 29 CFR 531.54 - Tip pooling.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAGE PAYMENTS UNDER THE FAIR LABOR STANDARDS ACT OF 1938 Tipped Employees § 531.54 Tip pooling. Where employees practice... received and retained by each individual as his own are counted as his tips for purposes of the...

  10. 29 CFR 531.54 - Tip pooling.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAGE PAYMENTS UNDER THE FAIR LABOR STANDARDS ACT OF 1938 Tipped Employees § 531.54 Tip pooling. Where employees practice... received and retained by each individual as his own are counted as his tips for purposes of the...

  11. 29 CFR 531.54 - Tip pooling.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR REGULATIONS WAGE PAYMENTS UNDER THE FAIR LABOR STANDARDS ACT OF 1938 Tipped Employees § 531.54 Tip pooling. Where employees practice... received and retained by each individual as his own are counted as his tips for purposes of the...

  12. Teaching Criminology.

    ERIC Educational Resources Information Center

    Rogers, Joseph W.

    1986-01-01

    This article surveys information resources, contemporary issues and trends, and selected instructional strategies useful in teaching undergraduate criminology. Instructional resources reviewed include textbooks, professional journals, and reference works. Twelve issues and trends are identified and three exemplary learning activities are…

  13. Integrator element as a promoter of active learning in engineering teaching

    NASA Astrophysics Data System (ADS)

    Oliveira, Paulo C.; Oliveira, Cristina G.

    2014-03-01

    In this paper, we present a teaching proposal used in an Introductory Physics course to civil engineering students from Porto's Engineering Institute/Instituto Superior de Engenharia do Porto (ISEP). The proposal was born from the need to change students' perception and motivation for learning physics. It consists in the use of an integrator element, called the physics elevator project. This integrator element allows us to use, in a single project, all the content taught in the course and uses several active learning strategies. In this paper, we analyse this project as: (i) a clarifying element of the contents covered in the course; (ii) a promoter element of motivation and active participation in class and finally and (iii) a link between the contents covered in the course and the 'real world'. The data were collected by a questionnaire and interviews to students. From the data collected, it seems that the integrator element improves students' motivation towards physics and develops several skills that they consider to be important to their professional future. It also acts as a clarifying element and makes the connection between the physics that is taught and the 'real world'.

  14. Student-inspired activities for the teaching and learning of engineering ethics.

    PubMed

    Alpay, E

    2013-12-01

    Ethics teaching in engineering can be problematic because of student perceptions of its subjective, ambiguous and philosophical content. The use of discipline-specific case studies has helped to address such perceptions, as has practical decision making and problem solving approaches based on some ethical frameworks. However, a need exists for a wider range of creative methods in ethics education to help complement the variety of activities and learning experiences within the engineering curriculum. In this work, a novel approach is presented in which first-year undergraduate students are responsible for proposing ethics education activities of relevance to their peers and discipline area. The students are prepared for the task through a short introduction on engineering ethics, whereby generic frameworks for moral and professional conduct are discussed, and discipline and student-relevance contexts provided. The approach has been used in four departments of engineering at Imperial College London, and has led to the generation of many creative ideas for wider student engagement in ethics awareness, reflection and understanding. The paper presents information on the premise of the introductory sessions for supporting the design task, and an evaluation of the student experience of the course and task work. Examples of proposals are given to demonstrate the value of such an approach to teachers, and ultimately to the learning experiences of the students themselves.

  15. Teaching reactions and stoichiometry: A comparison of guided inquiry and traditional laboratory activities

    NASA Astrophysics Data System (ADS)

    Meister Thomas, Lynn

    There is a major movement in science education towards the inclusion of science inquiry and process. Guided-inquiry instruction is expected to have a positive impact on students' concrete and conceptual knowledge along with their ability to engage in the practices of science. This study examined the impact of inquiry-based teaching on student achievement. The topics of reactions and stoichiometry were taught in two different periods of first-year secondary honors chemistry. Both classes received the same lectures and assignments for this curriculum and both classes performed the same laboratory activities. However, one class received traditional, step-by-step (often called "cookbook") laboratory instructions while the other class developed their own procedures and made decisions about data to complete the laboratory activities. Pre- and post-tests were given to each class, followed by a test of retention after ten weeks. The results of this study indicate that inquiry-based instruction has a positive impact on student achievement. A significant increase between pre- and post- test scores for the experimental group as opposed to the scores for the control group suggests that achievement was correlated with guided inquiry instruction methods. Additionally, a notable trend suggested that guided inquiry instruction has a positive effect on learning retention.

  16. Alternating tip splitting in directional solidification.

    PubMed

    Utter, B; Ragnarsson, R; Bodenschatz, E

    2001-05-14

    We report experimental results on the tip splitting dynamics of seaweed growth in directional solidification of succinonitrile alloys. Despite the random appearance of the growth, a tip splitting morphology was observed in which the tip alternately splits to the left and to the right. The tip splitting frequency f was found to be related to the growth velocity V as a power law f~V1.5. This finding is consistent with the predictions of a tip splitting model that is also presented. Small anisotropies are shown to lead to different kinds of seaweed morphologies.

  17. Coated fiber tips for optical instrumentation

    NASA Astrophysics Data System (ADS)

    Barton, John B.; Chanda, Sheetal; Locknar, Sarah A.; Carver, Gary E.

    2016-03-01

    Compact optical systems can be fabricated by integrating coatings on fiber tips. Examples include fiber lasers, fiber interferometers, fiber Raman probes, fiber based spectrometers, and anti-reflected endoscopes. These interference filters are applied to exposed tips - either connectorized or cleaved. Coatings can also be immersed within glass by depositing on one tip and connecting to another uncoated tip. This paper addresses a fiber spectrometer for multispectral imaging - useful in several fields including biomedical scanning, flow cytometry, and remote sensing. Our spectrometer integrates serial arrays of reflecting fiber tips, delay lines between these elements, and a single element detector.

  18. Teaching high-school Geoscience through a group-based activity: the Geotrivia experiment

    NASA Astrophysics Data System (ADS)

    Bakopoulou, Athanasia

    2015-04-01

    Geotrivia is an educational game which aims at the enhancement of geoscience teaching in secondary education, through an interactive group-based activity. As behavioural teaching methods no longer excite students in a multitask society, new approaches should be implemented to keep up with novel learning methodologies and team-based techniques. Thus, the main aim of the experiment was to come up with an alternative learning process on geology and geography in order to upgrade and attract more students to Geosciences. Geotrivia is based on the techniques of motivation (competition to be the winner) and enjoyable educational time (it is funny to play a game) in terms of team-based student collaboration. Pedagogical aims of Geotrivia consist of team-based work, independency, autonomy and initiative, active participation, student self-evaluation and metacognition. Geotrivia is a card game, consisting of about 150 playing cards, a whistle and an hourglass. Each playing card contains a geology- or geography-related question and the answer to the question is given in the lower part of the card. Class students are divided in about 4 groups of about 5 students each. The aim of each group is to collect as many cards as possible. The hourglass is flipped and a member of the team takes the pack of cards and uses it to ask questions to his team; the other members have to answer as many questions. The team wins a card when they give a correct answer. The game is played at the end of each curriculum unit; a comprehensive version of the game is held at end of the school year. Most -but not all- questions are based on the course syllabus, which deals with the geology and geography of Europe at junior high school level (e.g. what is the cause of high seismicity in Greece?). Accordingly, Geotrivia questions can be adjusted to each country school book of geology - geography at any grade. To evaluate the results of Geotrivia, we used the methodology of pretest and posttest, an

  19. Practical Tips to Help the Collaborative Process Work More Effectively in the School Library Media Program

    ERIC Educational Resources Information Center

    Collett, Amy

    2008-01-01

    In this article, the author presents six tips to help school library media specialists achieve effective collaboration with teachers: (1) Schedule a set time for collaboration meetings and use a meeting log; (2) Be flexible; (3) Be an advocate for collaboration; (4) Co-plan, co-teach, and co-access; (5) Be positive; and (6) Keep a meeting log, log…

  20. Effects of the TIP Strategy on Problem Solving Skills of Young Adults with Intellectual Disability

    ERIC Educational Resources Information Center

    Hua, Youjia; Woods-Groves, Suzanne; Kaldenberg, Erica R.; Lucas, Kristin G.; Therrien, William J.

    2015-01-01

    The purpose of the study was to investigate the effectiveness of teaching a three-step cognitive strategy (TIP) using the schema broadening procedures on functional mathematical problem solving skills of young adults with intellectual disability (ID). We randomly assigned 14 learners with ID to the control and experimental group before the…

  1. The Nitty-Gritty Classroom and Behavior Management Resource: Strategies, Reproducibles, and Tips for Teachers

    ERIC Educational Resources Information Center

    Tetteris, Belinda Christine

    2006-01-01

    This book will help teachers better relate to, understand, and love their job. This is a professional resource that contains innovative ideas, visuals, and reproducibles that can be referenced quickly to help make the job easier. This comprehensive resource offers practical teaching techniques, solutions, and tips on: (1) Planning and designing…

  2. The Nitty-Gritty Classroom and Behavior Management Resource: Strategies, Reproducibles, and Tips for Teachers

    ERIC Educational Resources Information Center

    Tetteris, Belinda Christine

    2006-01-01

    This book will help teachers better relate to, understand, and love their job by providing a professional resource that contains innovative ideas, visuals, and reproducibles that can be referenced quickly to help make the job easier. This comprehensive resource offers practical teaching techniques, solutions, and tips on: (1) Planning and…

  3. Screening and Assessing Adolescents for Substance Use Disorders. Treatment Improvement Protocol (TIP) Series 31.

    ERIC Educational Resources Information Center

    Substance Abuse and Mental Health Services Administration (DHHS/PHS), Rockville, MD. Center for Substance Abuse Treatment.

    This TIP is designed to teach juvenile justice, health services, education, and substance abuse treatment personnel about how to identify, screen, and assess people 11-to-21 years old who may be experiencing substance-related problems. It details warning signs of substance use disorders, when to screen, when to assess, what domains besides…

  4. Twelve tips for the development of electronic study guides.

    PubMed

    Montemayor, Luz Leticia Elizondo

    2002-09-01

    With recent advances in technology, electronic study guides are becoming extraordinary management, learning and assessment tools in the teaching-learning process, replacing printed study guides. The educational advantages they offer are listed here. During the elaboration of an electronic study guide, there are important issues to consider, such as the student's capabilities in the use of electronic media, the type of software to be used, proper authorizations and accessibility, the inclusion of all information and links needed, as well as a clear explanation on the use of the software. This paper offers twelve useful tips for the development of electronic study guides. PMID:12450466

  5. Reconceptualizing context from a situated perspective: Teacher beliefs and the activity of teaching within the context of science reform

    NASA Astrophysics Data System (ADS)

    Smith, Leigh K.

    An increasing interest in illuminating the relationships between context and educational reform has led researchers to examine the various interconnected factors that constitute different teaching contexts and the relationships between these elements and teachers' beliefs. The challenge is to identify those aspects of context that facilitate change in teachers' thinking and the way they approach science instruction. This study investigated the relationships between elementary teachers' science-related beliefs and the external forces within the context of their teaching. Using a situated perspective from which to view context, the activity of teaching and the related beliefs of 2 elementary teachers was examined in an effort to better understand the role of context in teachers' thinking about what science is, what it means to teach and learn science, what is involved in reform-based practices, and what science instruction might look like in their classrooms based on their interpretation of reform. Comparative case studies were developed and analyzed using a constant comparative method of analysis. Cross-ease analyses revealed a number of major themes: (a) teachers' science-related beliefs vary in level of commitment; (b) more deeply held beliefs about what it means to teach and learn science, or guiding beliefs, are profoundly resistant to change and are derived primarily from teachers' personal histories both in and outside of schools; (c) guiding beliefs are also shaped by science methods courses, teacher development, and practical classroom experience; (d) less deeply held beliefs, or perceptions of control, are teachers' beliefs about their ability to teach science according to their guiding beliefs in the presence of physical, social, or structural factors within the context of their teaching; (e) guiding beliefs are likely to override perceptions of control, enabling teachers to adapt their teaching contexts; and (f) although all aspects of context impact

  6. Activities to Promote Critical Thinking. Classroom Practices in Teaching English, 1986.

    ERIC Educational Resources Information Center

    National Council of Teachers of English, Urbana, IL.

    Intended to involve students in language and communication study in such a way that significant thinking occurs, this collection of teaching ideas outlines ways to teach literature and composition that engage the students in such thinking processes as inferring, sequencing, predicting, classifying, problem solving, and synthesizing. The activities…

  7. "But Aren't Cults Bad?": Active Learning, Productive Chaos, and Teaching New Religious Movements

    ERIC Educational Resources Information Center

    Zeller, Benjamin E.

    2015-01-01

    This article considers the challenges inherent when teaching about new religious movements ("cults"), how successful instructors have surmounted them, and how teacher-scholars in other fields of religious studies can benefit from a discussion of the successful teaching of new religions. I note that student-centered pedagogies are crucial…

  8. Establishing "Fields of Care": Teaching Settings as Active Participants in Science Education

    ERIC Educational Resources Information Center

    Blatt, Erica N.

    2014-01-01

    In their article, "Space, relations, and the learning of science," Wolff-Michael Roth and Pei-Ling Hsu draw our attention to the importance of field in the teaching and learning of science. While the Roth and Hsu study is focused on the scientific research laboratory as an internship setting for the teaching of science, this response to…

  9. From Direct Instruction to Active Construction: Teaching and Learning Basic Facts

    ERIC Educational Resources Information Center

    Tait-McCutcheon, Sandi; Drake, Michael; Sherley, Brenda

    2011-01-01

    This paper builds from a prior study into the teaching and learning of basic number facts in New Zealand. It reports the changes in practice of one teacher that were brought about by her reflection on the effectiveness of her teaching and learning programme. It details how this teacher created a process which helped make the learning of basic…

  10. University Efficiency: Complementariness versus Trade-Off between Teaching, Research and Administrative Activities

    ERIC Educational Resources Information Center

    Sellers-Rubio, Ricardo; Mas-Ruiz, Francisco J.; Casado-Diaz, Ana B.

    2010-01-01

    University managers should be aware of the importance that efficiency has for their own universities, orientating their actions towards research and teaching excellence. This study estimates teaching and research efficiency of the different departments of a university and tests the complementariness versus trade-off between them. The results…

  11. Energy, Economics, and the Environment: Case Studies and Teaching Activities for Middle School.

    ERIC Educational Resources Information Center

    Indiana State Dept. of Education, Indianapolis. Center for School Improvement and Performance.

    Educators are faced with the task of teaching students to be responsible stewards of the world's natural resources. This curriculum focuses on three interrelated topics in this area: energy, economics, and the environment. The goal of this book is to: (1) teach students basic knowledge and concepts about energy, the environment, and economics; (2)…

  12. Parametric tip effects for conformable rotor applications

    NASA Technical Reports Server (NTRS)

    Mantay, W. R.; Yeager, W. T., Jr.

    1983-01-01

    A research study was initiated to systematically determine the impact of selected blade tip geometric parameters on aeroelasticity conformable rotor performance and loads characteristics. The model articulated rotors included baseline and torsionally soft blades with interchangeable tips. Seven blade tip designs were evaluated on the baseline rotor and three tip designs were tested on the torsionally soft blades. The designs incorporated a systematic variation in three geometric parameters: sweep, taper, and anhedral. The rotors were evaluated in the NASA Langley Transonic Dynamics Tunnel at several advance ratios, lift and propulsive force values, and tip Mach numbers. Based on the test results, tip parameter variations generated significant rotor performance and loads difference for both baseline and torsionally soft blades. Azimuthal variation of elastic twist generated by the tip parameters strongly correlated with rotor performance and loads, but the magnitude of advancing blade elastic twist did not correlate.

  13. Advanced turbine blade tip seal system

    NASA Technical Reports Server (NTRS)

    Zelahy, J. W.

    1981-01-01

    An advanced blade/shroud system designed to maintain close clearance between blade tips and turbine shrouds and at the same time, be resistant to environmental effects including high temperature oxidation, hot corrosion, and thermal cycling is described. Increased efficiency and increased blade life are attained by using the advanced blade tip seal system. Features of the system include improved clearance control when blade tips preferentially wear the shrouds and a superior single crystal superalloy tip. The tip design, joint location, characterization of the single crystal tip alloy, the abrasive tip treatment, and the component and engine test are among the factors addressed. Results of wear testing, quality control plans, and the total manufacturing cycle required to fully process the blades are also discussed.

  14. Compressor Stall Recovery Through Tip Injection Assessed

    NASA Technical Reports Server (NTRS)

    Suder, Ken L.

    2001-01-01

    Aerodynamic stability is a fundamental limit in the compressor design process. The development of robust techniques for increasing stability has several benefits: enabling higher loading and fewer blades, increasing safety throughout a mission, increasing tolerance to stage mismatch during part-speed operation and speed transients, and providing an opportunity to match stages at the compressor maximum efficiency point, thus reducing fuel burn. Mass injection upstream of the tip of a high-speed axial compressor rotor is a stability enhancement approach known to be effective in suppressing stall in tip-critical rotors if the injection is activated before stall occurs. This approach to stall suppression requires that a reliable stall warning system be available. Tests have recently been performed to assess whether steady injection can also be used to recover from fully developed stall. If mass injection is effective in recovering from stall quickly enough to avoid structural damage or loss of engine power, then a stall warning system may not be required. The stall recovery tests were performed on a transonic compressor rotor at its design tip speed of 1475 ft/sec using four injectors evenly spaced around the compressor case upstream of the rotor. The injectors were connected to an external air source. In an actual engine application, the injected air would be supplied with compressor bleed air. The injectors were isolated from the air source by a fast-acting butterfly valve. With the injectors turned off, the compressor was throttled into stall. Air injection was then activated with no change in throttle setting by opening the butterfly valve. The compressor recovered from stall at a fixed throttle setting with the aid of tip injection. The unsteady operating characteristic of the rotor was measured during these tests using high-response pressure sensors located upstream and downstream of the rotor. The figure shows the results, where the unsteady pressure and mass

  15. Students' Perceptions of Teaching in Context-based and Traditional Chemistry Classrooms: Comparing content, learning activities, and interpersonal perspectives

    NASA Astrophysics Data System (ADS)

    Overman, Michelle; Vermunt, Jan D.; Meijer, Paulien C.; Bulte, Astrid M. W.; Brekelmans, Mieke

    2014-07-01

    Context-based curriculum reforms in chemistry education are thought to bring greater diversity to the ways in which chemistry teachers organize their teaching. First and foremost, students are expected to perceive this diversity. However, empirical research on how students perceive their teacher's teaching in context-based chemistry classrooms, and whether this teaching differs from traditional chemistry lessons, is scarce. This study aims to develop our understanding of what teaching looks like, according to students, in context-based chemistry classrooms compared with traditional chemistry classrooms. As such, it might also provide a better understanding of whether teachers implement and attain the intentions of curriculum developers. To study teacher behaviour we used three theoretical perspectives deemed to be important for student learning: a content perspective, a learning activities perspective, and an interpersonal perspective. Data were collected from 480 students in 24 secondary chemistry classes in the Netherlands. Our findings suggest that, according to the students, the changes in teaching in context-based chemistry classrooms imply a lessening of the emphasis on fundamental chemistry and the use of a teacher-centred approach, compared with traditional chemistry classrooms. However, teachers in context-based chemistry classrooms seem not to display more 'context-based' teaching behaviour, such as emphasizing the relation between chemistry, technology, and society and using a student-centred approach. Furthermore, students in context-based chemistry classrooms perceive their teachers as having less interpersonal control and showing less affiliation than teachers in traditional chemistry classrooms. Our findings should be interpreted in the context of former and daily experiences of both teachers and students. As only chemistry is reformed in the schools in which context-based chemistry is implemented, it is challenging for both students and teachers to

  16. "To Market, to Market": Exploring the Teaching-Learning Interface in Developing Intercultural Interactions from Textbook Activities--Crossing Languages and Cultures

    ERIC Educational Resources Information Center

    Morgan, Anne-Marie; Mercurio, Nives

    2011-01-01

    In this paper we consider what happens at the "teaching-learning interface" in some Indonesian and Italian examples of classroom interactions within an intercultural orientation to languages teaching and learning. Using activities from textbooks as a starting point, we identify the underlying linguistic, cultural, and intercultural concepts with…

  17. Assessing a Broad Teaching Approach: The Impact of Combining Active Learning Methods on Student Performance in Undergraduate Peace and Conflict Studies

    ERIC Educational Resources Information Center

    Sjöstedt, Roxanna

    2015-01-01

    Teaching introductory International Relations (IR) and peace and conflict studies can be challenging, as undergraduate teaching frequently involves large student groups that limit student activity to listening and taking notes. According to pedagogic research, this is not the optimal structure for learning. Rather, although a teacher can pass on…

  18. A Comparison of the Effectiveness of a Game Informed Online Learning Activity and Face to Face Teaching in Increasing Knowledge about Managing Aggression in Health Settings

    ERIC Educational Resources Information Center

    McKenzie, Karen

    2013-01-01

    The present study compared the impact of face to face teaching with a short online game informed learning activity on health participants' knowledge about, and confidence in, managing aggressive situations. Both forms of teaching resulted in a significant increase in participants' knowledge and confidence. Face to face training led to…

  19. Proteomic analyses of soybean root tips during germination.

    PubMed

    Komatsu, Setsuko; Oh, Myeong W; Jang, Hee Y; Kwon, Soo J; Kim, Hye R; Ko, Jung H; Woo, Sun H; Nanjo, Yohei

    2014-01-01

    Plant root systems form complex networks with the surrounding soil environment and are controlled by both internal and external factors. To better understand the function of root tips of soybean during germination, three proteomic techniques were used to analyze the protein profiles of root tip cells. Proteins were extracted from the root tips of 4-day-old soybean seedlings and analyzed using two-dimensional (2D) gel electrophoresis-based proteomics, SDS-gel based proteomics, and gel-free proteomics techniques. A total of 121, 862, and 341 proteins were identified in root tips using the 2D gel-based, SDS gel-based, and gel-free proteomic techniques, respectively. The proteins identified by 2D gel-based proteomic analysis were predominantly localized in the cytoplasm, whereas nuclear-localized proteins were most commonly identified by the SDS gel-based and gel-free proteomics techniques. Of the 862 proteins identified in the SDS gel-based proteomic analysis, 190 were protein synthesis-related proteins. Furthermore, 24 proteins identified using the 2D-gel based proteomic technique shifted between acidic and basic isoelectric points, and 2 proteins, heat shock protein 70.2 and AAA-type ATPase, displayed two different molecular weights at the same isoelectric point. Taken together, these results suggest that a number of proteins related to protein synthesis and modification are activated in the root tips of soybean seedlings during germination.

  20. Comparison of Various Supersonic Turbine Tip Designs to Minimize Aerodynamic Loss and Tip Heating

    NASA Technical Reports Server (NTRS)

    Shyam, Vikram; Ameri, Ali

    2012-01-01

    The rotor tips of axial turbines experience high heat flux and are the cause of aerodynamic losses due to tip clearance flows, and in the case of supersonic tips, shocks. As stage loadings increase, the flow in the tip gap approaches and exceeds sonic conditions. This introduces effects such as shock-boundary layer interactions and choked flow that are not observed for subsonic tip flows that have been studied extensively in literature. This work simulates the tip clearance flow for a flat tip, a diverging tip gap and several contoured tips to assess the possibility of minimizing tip heat flux while maintaining a constant massflow from the pressure side to the suction side of the rotor, through the tip clearance. The Computational Fluid Dynamics (CFD) code GlennHT was used for the simulations. Due to the strong favorable pressure gradients the simulations assumed laminar conditions in the tip gap. The nominal tip gap width to height ratio for this study is 6.0. The Reynolds number of the flow is 2.4 x 10(exp 5) based on nominal tip width and exit velocity. A wavy wall design was found to reduce heat flux by 5 percent but suffered from an additional 6 percent in aerodynamic loss coefficient. Conventional tip recesses are found to perform far worse than a flat tip due to severe shock heating. Overall, the baseline flat tip was the second best performer. A diverging converging tip gap with a hole was found to be the best choice. Average tip heat flux was reduced by 37 percent and aerodynamic losses were cut by over 6 percent.

  1. Dynamic OCT of sweat glands of human finger tip

    NASA Astrophysics Data System (ADS)

    Haruna, Masamitsu; Ueda, Yoshihiro; Ohmi, Masato; Fuji, Toshie

    2006-02-01

    Dynamic optical coherence tomography (OCT) is demonstrated for dynamic study of sweat glands of human finger tip using the all-optical-fiber imaging system. Stress-induced and physical activation of sweat glands can be observed clearly in time-sequential OCT images. The method for image data acquisition is presented as well as the experimental results.

  2. Reducing Your Impact: Tips for Treading Softly on Mother Earth.

    ERIC Educational Resources Information Center

    Henchey, Kathy; Carvajal, Michelle

    2000-01-01

    As more people use wilderness areas, the need to protect pristine areas increases. Tips for minimizing impact include advance planning, knowing the rules of the area being used, packing properly, dispersing impacts when off-trail, leaving no garbage, taking nothing from the site, and conducting activities away from water sources and trails. Three…

  3. Mentoring and Coaching Tips: How Educators Can Help Each Other

    ERIC Educational Resources Information Center

    Waterman, Sheryn Spencer

    2013-01-01

    This book is for educators at all levels and is packed with creative, use-now tips and activities to support new and struggling teachers. Combining real-life scenarios with current research, the author demonstrates how educators can get the most out of available resources, promote a school culture devoted to helping and caring, and meet common…

  4. Reduction of TIP30 in esophageal squamous cell carcinoma cells involves promoter methylation and microRNA-10b

    SciTech Connect

    Dong, Wenjie; Shen, Ruizhe; Cheng, Shidan

    2014-10-31

    Highlights: • TIP30 expression is frequently suppressed in ESCC. • TIP30 was hypermethylated in ESCC. • Reduction of TIP30 was significantly correlated with LN metastasis. • miR-10b is a direct regulator of TIP30. - Abstract: TIP30 is a putative tumor suppressor that can promote apoptosis and inhibit angiogenesis. However, the role of TIP30 in esophageal squamous cell carcinoma (ESCC) biology has not been investigated. Immunohistochemistry was used to investigate the expression of TIP30 in 70 ESCC. Hypermethylation of TIP30 was evaluated by the methylation specific PCR (MSP) method in ESCC (tumor and paired adjacent non-tumor tissues). Lost expression of TIP30 was observed in 50 of 70 (71.4%) ESCC. 61.4% (43 of 70) of primary tumors analyzed displayed TIP30 hypermethylation, indicating that this aberrant characteristic is common in ESCC. Moreover, a statistically significant inverse association was found between TIP30 methylation status and expression of the TIP30 protein in tumor tissues (p = 0.001). We also found that microRNA-10b (miR-10b) targets a homologous DNA region in the 3′untranslated region of the TIP30 gene and represses its expression at the transcriptional level. Reporter assay with 3′UTR of TIP30 cloned downstream of the luciferase gene showed reduced luciferase activity in the presence of miR-10b, providing strong evidence that miR-10b is a direct regulator of TIP30. These results suggest that TIP30 expression is regulated by promoter methylation and miR-10b in ESCC.

  5. Tips to Help You Get Active

    MedlinePlus

    ... watching your kids, or working out with you. Weather. Wear the right gear . A rain jacket, sunhat ... or winter clothes will help you beat the weather. Find a place to exercise indoors. Walk in ...

  6. A detailed analysis of theatre training activity in a UK teaching hospital.

    PubMed

    McIndoe, A K; Underwood, S M

    2000-05-01

    We examined the placement of anaesthetists in our department over a 2 yr period. Data were collected from an in-theatre system to provide details of caseload and supervision for 34,856 operations. There was wide variation between anaesthetic sub-specialties with overall supervision levels of 35% of cases for senior house officers (SHOs) and 32% for specialist registrars (SpRs). The consultant data showed the size and areas of teaching reserve in the department. We then examined individual logbooks in order to validate our data, and departmental rotas to put these data into perspective with previous attempts to quantify trainee supervision. Supervision data derived from the rota allocations showed that 86% of SHO lists and 62% of SpR lists were scheduled to be supervised. This study has described our training activity and facilitated departmental changes, as well as highlighting the need for great care in interpreting trainee supervision data acquired from different sources, particularly when comparisons are being made.

  7. Utilization of recycled neutron source to teach prompt gamma analysis activation-PGNA

    NASA Astrophysics Data System (ADS)

    Delgado-Correal, Camilo; Munera, Hector

    2008-03-01

    Neutron activation analysis based on prompt gamma ray emission has significantly developed during the past twenty years. The technique is particularly suited for the identification of low atomic number elements, as nitrogen that is a main component of drugs and explosives. Identification of these substances is important in the context of humanitarian demining, and in the control of illicit traffic of drugs and explosives. As a good example of recycling of radioactive sources, a ^241Am-Be neutron source emitting 10^7neutron/s, that was not longer in use for other purposes at Ingeominas, was used to build a neutron irradiator that can be used to teach prompt gamma ray analysis, and other nuclear techniques. We irradiated individual samples, each about 4 gram, of three different elements: nitrogen in urea, silicon in milled rock, and cadmium in cadmium oxide. The prompt gamma rays emitted in the nuclear reactions ^112Cd (neutron,gamma) ^113Cd, ^28Si (neutron,gamma) ^29Si and ^14N (neutron,gamma) ^15N were identified using a well-type NaI (Tl) detector, connected to a multi-channel analyzer.

  8. Genome Consortium for Active Teaching: Meeting the Goals of BIO2010

    PubMed Central

    Ledbetter, Mary Lee S.; Hoopes, Laura L.M.; Eckdahl, Todd T.; Heyer, Laurie J.; Rosenwald, Anne; Fowlks, Edison; Tonidandel, Scott; Bucholtz, Brooke; Gottfried, Gail

    2007-01-01

    The Genome Consortium for Active Teaching (GCAT) facilitates the use of modern genomics methods in undergraduate education. Initially focused on microarray technology, but with an eye toward diversification, GCAT is a community working to improve the education of tomorrow's life science professionals. GCAT participants have access to affordable microarrays, microarray scanners, free software for data analysis, and faculty workshops. Microarrays provided by GCAT have been used by 141 faculty on 134 campuses, including 21 faculty that serve large numbers of underrepresented minority students. An estimated 9480 undergraduates a year will have access to microarrays by 2009 as a direct result of GCAT faculty workshops. Gains for students include significantly improved comprehension of topics in functional genomics and increased interest in research. Faculty reported improved access to new technology and gains in understanding thanks to their involvement with GCAT. GCAT's network of supportive colleagues encourages faculty to explore genomics through student research and to learn a new and complex method with their undergraduates. GCAT is meeting important goals of BIO2010 by making research methods accessible to undergraduates, training faculty in genomics and bioinformatics, integrating mathematics into the biology curriculum, and increasing participation by underrepresented minority students. PMID:17548873

  9. A detailed analysis of theatre training activity in a UK teaching hospital.

    PubMed

    McIndoe, A K; Underwood, S M

    2000-05-01

    We examined the placement of anaesthetists in our department over a 2 yr period. Data were collected from an in-theatre system to provide details of caseload and supervision for 34,856 operations. There was wide variation between anaesthetic sub-specialties with overall supervision levels of 35% of cases for senior house officers (SHOs) and 32% for specialist registrars (SpRs). The consultant data showed the size and areas of teaching reserve in the department. We then examined individual logbooks in order to validate our data, and departmental rotas to put these data into perspective with previous attempts to quantify trainee supervision. Supervision data derived from the rota allocations showed that 86% of SHO lists and 62% of SpR lists were scheduled to be supervised. This study has described our training activity and facilitated departmental changes, as well as highlighting the need for great care in interpreting trainee supervision data acquired from different sources, particularly when comparisons are being made. PMID:10844835

  10. Genome Consortium for Active Teaching: meeting the goals of BIO2010.

    PubMed

    Campbell, A Malcolm; Ledbetter, Mary Lee S; Hoopes, Laura L M; Eckdahl, Todd T; Heyer, Laurie J; Rosenwald, Anne; Fowlks, Edison; Tonidandel, Scott; Bucholtz, Brooke; Gottfried, Gail

    2007-01-01

    The Genome Consortium for Active Teaching (GCAT) facilitates the use of modern genomics methods in undergraduate education. Initially focused on microarray technology, but with an eye toward diversification, GCAT is a community working to improve the education of tomorrow's life science professionals. GCAT participants have access to affordable microarrays, microarray scanners, free software for data analysis, and faculty workshops. Microarrays provided by GCAT have been used by 141 faculty on 134 campuses, including 21 faculty that serve large numbers of underrepresented minority students. An estimated 9480 undergraduates a year will have access to microarrays by 2009 as a direct result of GCAT faculty workshops. Gains for students include significantly improved comprehension of topics in functional genomics and increased interest in research. Faculty reported improved access to new technology and gains in understanding thanks to their involvement with GCAT. GCAT's network of supportive colleagues encourages faculty to explore genomics through student research and to learn a new and complex method with their undergraduates. GCAT is meeting important goals of BIO2010 by making research methods accessible to undergraduates, training faculty in genomics and bioinformatics, integrating mathematics into the biology curriculum, and increasing participation by underrepresented minority students.

  11. Endoscopic septoplasty: Tips and pearls.

    PubMed

    Pons, Y; Champagne, C; Genestier, L; Ballivet de Régloix, S

    2015-12-01

    This article is designed to provide a step-by-step description of our endoscopic septoplasty technique and discuss its difficulties and technical tips. Endoscopic septoplasty comprises 10 steps: diagnostic endoscopy, subperichondral infiltration, left mucosal incision, dissection of the left subperichondral flap, cartilage incision (0.5 centimetre posterior to the mucosal incision), dissection of the right subperichondral flap, anterior cartilage resection, perpendicular plate dissection, dissection and resection of the maxillary crest, endoscopic revision, mucosal suture and Silastic stents. A satisfactory postoperative result was observed at 3 months in 97% of cases in this series. The main contraindication to endoscopic septoplasty is anterior columellar deviation of the nasal septum requiring a conventional procedure.

  12. Advertising and the Economy: A Teaching Package.

    ERIC Educational Resources Information Center

    Proctor and Gamble Co., Cincinnati, OH.

    This teaching packet is designed to enrich lessons and motivate students, and is based on real-life marketing problems. The packet includes a booklet containing background for instructors on advertising's crucial economic role and its history in the United States, eight reproducible lessons, and teaching tips for each lesson. The packet also…

  13. Teaching About Nuclear Power: A Simulation.

    ERIC Educational Resources Information Center

    Maxey, Phyllis F.

    1980-01-01

    Recommends that simulation games be used to teach high school students in social studies courses about contemporary and controversial issues such as nuclear power. A simulation is described which involves students in deciding whether to build a nuclear power plant in the California desert. Teaching and debriefing tips are also provided. (DB)

  14. Seen and Heard: Teaching Kids To Stand Up for Themselves.

    ERIC Educational Resources Information Center

    Hess, Lisa Lawmaster

    1997-01-01

    Presents a framework for teaching upper elementary students about assertiveness: teaching them differences between passive, aggressive, and assertive behavior; encouraging role playing; discussing when assertive behavior is appropriate; constantly reinforcing the lessons; and teaching alternatives. Tips for assertive communication are provided.…

  15. Teaching as a Sensory Activity: Making the Maya Come to Life.

    ERIC Educational Resources Information Center

    Banks, Dennis; Gallagher, Deborah

    1993-01-01

    Presents an interdisciplinary instructional unit focusing on the Mayan Civilization. Describes the use of interactive story telling and guided imagery to heighten student interest and involvement. Provides suggestions for using these methods to teach about other countries or civilizations. (CFR)

  16. Using problem-based learning in staff development: strategies for teaching registered nurses and new graduate nurses.

    PubMed

    Chunta, Kristy S; Katrancha, Elizabeth D

    2010-12-01

    Problem-based learning, described as an active teaching strategy, provides a framework for the development of self-directed learning, self-evaluation, interpersonal communication, critical thinking, and access and retrieval of information. This teaching method can be modified to fit almost any situation. Problem-based learning provides an opportunity to actively engage staff members in learning situations, making it a great asset for teaching in staff development. This article describes the use of problem-based learning for teaching registered nurses and new graduate nurses. It provides a scenario and facilitator guide pertaining to a real patient situation on an inpatient telemetry unit and offers general tips for implementing problem-based learning in staff education.

  17. Blade Tip Rubbing Stress Prediction

    NASA Technical Reports Server (NTRS)

    Davis, Gary A.; Clough, Ray C.

    1991-01-01

    An analytical model was constructed to predict the magnitude of stresses produced by rubbing a turbine blade against its tip seal. This model used a linearized approach to the problem, after a parametric study, found that the nonlinear effects were of insignificant magnitude. The important input parameters to the model were: the arc through which rubbing occurs, the turbine rotor speed, normal force exerted on the blade, and the rubbing coefficient of friction. Since it is not possible to exactly specify some of these parameters, values were entered into the model which bracket likely values. The form of the forcing function was another variable which was impossible to specify precisely, but the assumption of a half-sine wave with a period equal to the duration of the rub was taken as a realistic assumption. The analytical model predicted resonances between harmonics of the forcing function decomposition and known harmonics of the blade. Thus, it seemed probable that blade tip rubbing could be at least a contributor to the blade-cracking phenomenon. A full-scale, full-speed test conducted on the space shuttle main engine high pressure fuel turbopump Whirligig tester was conducted at speeds between 33,000 and 28,000 RPM to confirm analytical predictions.

  18. Tipping elements in the Earth's climate system

    SciTech Connect

    Lenton, T.M.; Held, H.; Lucht, W.; Rahmstorf, S.; Kriegler, E. |; Hall, J.W.; Schellnhuber, H.J. |

    2008-02-12

    The term 'tipping point' commonly refers to a critical threshold at which a tiny perturbation can qualitatively alter the state or development of a system. Here the authors introduce the term 'tipping element' to describe large-scale components of the Earth system that may pass a tipping point. They critically evaluate potential policy-relevant tipping elements in the climate system under anthropogenic forcing, drawing on the pertinent literature and a recent international workshop to compile a short list, and they assess where their tipping points lie. An expert elicitation is used to help rank their sensitivity to global warming and the uncertainty about the underlying physical mechanisms. Then the authors explain how, in principle, early warning systems could be established to detect the proximity of some tipping points.

  19. Measuring phacoemulsification groove depth using probe tip dimensions and biometry lens thickness readings

    PubMed Central

    Dunne, Kevin; Buller, Alex J

    2016-01-01

    Aim To describe a useful technique utilizing lens thickness from biometric data as well as phacoemulsification (phaco) probe tip dimensions, in order to more accurately determine safe groove depth during divide and conquer techniques for cataract surgery. Methods Single center, selection of patients for cataract surgery deemed low risk and suitable for surgical teaching cases. Individual lens thickness measurements from biometry were calculated with known phaco tip dimensions to give an individualized safe number of phaco tip depths for grooving during divide and conquer. This technique was then applied during cataract surgery. Results Utilization of this technique allows calculation and determination of an appropriate number of phaco tip depths of grooving for each individual patient. This technique was applied as a teaching tool for surgical trainees, with subsequent successful safe cataract surgeries completed. No posterior capsule ruptures were noted for these cases. Conclusion By combining the biometric measurements of an individual patient’s lens thickness together with known phaco tip dimensions, individualized safe groove depths can be theoretically determined and applied during divide and conquer cataract surgery. PMID:27574395

  20. An investigation of counterrotating tip vortex interaction

    NASA Technical Reports Server (NTRS)

    Majjigi, R. K.; Uenishi, K.; Gliebe, P. R.

    1989-01-01

    A tip vortex interaction model originally developed for compressors has been extended and adapted for use with counterrotating open rotors. Comparison of available acoustic data with predictions (made with and without the tip vortex model included) illustrate the importance of this interaction effect. This report documents the analytical modeling, a limited experimental verification, and certain key parametric studies pertaining to the tip vortex as a noise source mechanism for the unsteady loading noise of counterrotating properllers.

  1. Advanced optical blade tip clearance measurement system

    NASA Technical Reports Server (NTRS)

    Ford, M. J.; Honeycutt, R. E.; Nordlund, R. E.; Robinson, W. W.

    1978-01-01

    An advanced electro-optical system was developed to measure single blade tip clearances and average blade tip clearances between a rotor and its gas path seal in an operating gas turbine engine. This system is applicable to fan, compressor, and turbine blade tip clearance measurement requirements, and the system probe is particularly suitable for operation in the extreme turbine environment. A study of optical properties of blade tips was conducted to establish measurement system application limitations. A series of laboratory tests was conducted to determine the measurement system's operational performance characteristics and to demonstrate system capability under simulated operating gas turbine environmental conditions. Operational and environmental performance test data are presented.

  2. Is there a magnitude effect in tipping?

    PubMed

    Green, Leonard; Myerson, Joel; Schneider, Rachel

    2003-06-01

    The present study examined nearly 1,000 tips recorded for two taxicabs, two hair salons, and two restaurants. In each of the six cases, amount of tip increased linearly as a function of the amount of the bill. Contrary to standard microeconomic theory, there was a magnitude effect in that as the amount of the bill increased, the percent tip tended to decrease. The present results extend the findings of Chapman and Winquist (1998), obtained using hypothetical scenarios, to real-world tipping behavior. Chapman and Winquist argued that a magnitude effect in tipping reflects the shape of the utility function for money. We suggest, however, that the magnitude effect may be the mathematical consequence of replotting the fundamental relationship between tip and bill amounts in terms of percent tip, given that the observed linear relation between tip and bill amounts has a positive intercept. We suggest further that the positive intercept arises because a tip represents a judgment as to what constitutes a fair or equitable wage, and part of what constitutes a fair wage is independent of the amount of the bill, reflecting compensation for simply being there when needed. The present account implies that different explanations may be needed for magnitude effects observed in different domains.

  3. RANS computations of tip vortex cavitation

    NASA Astrophysics Data System (ADS)

    Decaix, Jean; Balarac, Guillaume; Dreyer, Matthieu; Farhat, Mohamed; Münch, Cécile

    2015-12-01

    The present study is related to the development of the tip vortex cavitation in Kaplan turbines. The investigation is carried out on a simplified test case consisting of a NACA0009 blade with a gap between the blade tip and the side wall. Computations with and without cavitation are performed using a R ANS modelling and a transport equation for the liquid volume fraction. Compared with experimental data, the R ANS computations turn out to be able to capture accurately the development of the tip vortex. The simulations have also highlighted the influence of cavitation on the tip vortex trajectory.

  4. Turbine blade tip with offset squealer

    DOEpatents

    Bunker, Ronald Scott

    2001-01-01

    An industrial turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationary shroud. The rotating blade includes a root section, an airfoil having a pressure sidewall and a suction sidewall defining an outer periphery and a tip portion having a tip cap. An offset squealer is disposed on the tip cap. The offset squealer is positioned inward from the outer periphery of the rotating blade. The offset squealer increases the flow resistance and reduces the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  5. Teaching Drama Via Trials.

    ERIC Educational Resources Information Center

    Mansour, Wisam

    1998-01-01

    Suggests using a court trial as an activity for teaching drama to English-as-a-foreign-language (EFL) students. Describes use of a court trial for teaching Macbeth to EFL students in Jordan. (Author/VWL)

  6. Tip60 HAT Action Mediates Environmental Enrichment Induced Cognitive Restoration

    PubMed Central

    Xu, Songjun; Panikker, Priyalakshmi; Iqbal, Sahira; Elefant, Felice

    2016-01-01

    Environmental enrichment (EE) conditions have beneficial effects for reinstating cognitive ability in neuropathological disorders like Alzheimer’s disease (AD). While EE benefits involve epigenetic gene control mechanisms that comprise histone acetylation, the histone acetyltransferases (HATs) involved remain largely unknown. Here, we examine a role for Tip60 HAT action in mediating activity- dependent beneficial neuroadaptations to EE using the Drosophila CNS mushroom body (MB) as a well-characterized cognition model. We show that flies raised under EE conditions display enhanced MB axonal outgrowth, synaptic marker protein production, histone acetylation induction and transcriptional activation of cognition linked genes when compared to their genotypically identical siblings raised under isolated conditions. Further, these beneficial changes are impaired in both Tip60 HAT mutant flies and APP neurodegenerative flies. While EE conditions provide some beneficial neuroadaptive changes in the APP neurodegenerative fly MB, such positive changes are significantly enhanced by increasing MB Tip60 HAT levels. Our results implicate Tip60 as a critical mediator of EE-induced benefits, and provide broad insights into synergistic behavioral and epigenetic based therapeutic approaches for treatment of cognitive disorder. PMID:27454757

  7. Ten Tips for Engaging the Millennial Learner and Moving an Emergency Medicine Residency Curriculum into the 21st Century

    PubMed Central

    Toohey, Shannon L.; Wray, Alisa; Wiechmann, Warren; Lin, Michelle; Boysen-Osborn, Megan

    2016-01-01

    Introduction Millennial learners are changing the face of residency education because they place emphasis on technology with new styles and means of learning. While research on the most effective way to teach the millennial learner is lacking, programs should consider incorporating educational theories and multimedia design principles to update the curriculum for these new learners. The purpose of the study is to discuss strategies for updating an emergency medicine (EM) residency program’s curriculum to accommodate the modern learner. Discussion These 10 tips provide detailed examples and approaches to incorporate technology and learning theories into an EM curriculum to potentially enhance learning and engagement by residents. Conclusion While it is unclear whether technologies actually promote or enhance learning, millennials use these technologies. Identifying best practice, grounded by theory and active learning principles, may help learners receive quality, high-yield education. Future studies will need to evaluate the efficacy of these techniques to fully delineate best practices. PMID:27330668

  8. Nanostar probes for tip-enhanced spectroscopy

    NASA Astrophysics Data System (ADS)

    Kim, Woong; Kim, Nara; Park, Joon Won; Kim, Zee Hwan

    2015-12-01

    To overcome the current limit of tip-enhanced spectroscopy that is based on metallic nano-probes, we developed a new scanning probe with a metallic nanostar, a nanoparticle with sharp spikes. A Au nanoparticle of 5 nm was first attached to the end of a tip through DNA-DNA hybridization and mechanical pick-up. The nanoparticle was converted to a nanostar with a core diameter of ~70 nm and spike lengths between 50 nm and 80 nm through the reduction of Au3+ with ascorbic acid in the presence of Ag+. Fabrication yields of such tips exceeded 60%, and more than 80% of such tips showed a mechanical durability sufficient for use in scanning microscopy. Effectiveness of the new probes for tip-enhanced Raman scattering (TERS) and tip-enhanced fluorescence (TEF) was confirmed. The probes exhibited the necessary enhancement for TEF, and the tip-on and tip-off ratios varied between 5 and 100. This large tip-to-tip variability may arise from the uncontrolled orientation of the apexes of the spike with respect to the sample surface, which calls for further fabrication improvement. The result overall supports a new fabrication approach for the probe that is effective for tip-enhanced spectroscopy.To overcome the current limit of tip-enhanced spectroscopy that is based on metallic nano-probes, we developed a new scanning probe with a metallic nanostar, a nanoparticle with sharp spikes. A Au nanoparticle of 5 nm was first attached to the end of a tip through DNA-DNA hybridization and mechanical pick-up. The nanoparticle was converted to a nanostar with a core diameter of ~70 nm and spike lengths between 50 nm and 80 nm through the reduction of Au3+ with ascorbic acid in the presence of Ag+. Fabrication yields of such tips exceeded 60%, and more than 80% of such tips showed a mechanical durability sufficient for use in scanning microscopy. Effectiveness of the new probes for tip-enhanced Raman scattering (TERS) and tip-enhanced fluorescence (TEF) was confirmed. The probes exhibited

  9. Could hands-on activities and smartphone in science CLIL teaching foster motivation and positive attitudes in students?

    NASA Astrophysics Data System (ADS)

    Ercolino, Immacolata; Maraffi, Sabina; Sacerdoti, Francesco M.

    2016-04-01

    Motivating students is one of the most challenging things we do as educators. We know that students need to be engaged to fully appreciate and learn what has been taught; the secret consists in nurturing student engagement. One of the newer ways to involve students and foster motivation in their Science learning consists in focusing on their usage and on applying knowledge and skills in their real-life. Students usually are engaged in authentic teaching pathway. Learning focusing on the experience helps teachers to improve classroom management by gathering students around a common organized activity. Hands-on activities support problem-based approaches to learning by focusing on the experience and process of investigating, proposing and creating solutions developing critical thinking skills and enlarge student's scientific glossary. We utilized in our classroom some lab activities that we learned at an ESA/GTTP Teacher training Workshop 2014 program at the Lorentz Center Leiden, Netherlands. "Cooking a comet - Ingredients for life" "Demonstration of the second Kepler's law using marbles" New media equipment, as student's own smartphones, can increase the teaching impact speaking the same language used by the students every day. They can measure magnetic fields, their GPS coordinates (longitude and latitude), and so on. In this way we can measure distances as parallax using mobile devices and simulating distance measurements in the classroom, on the school campus. The smartphone is the device with which the students answer questions, take decisions, and solve quests. Students infact can observe the Universe from their classroom and scientifically they can watch the Sun with "Google sky map" or "Star walk" are excellent tools to learn your way around the night sky .As teachers we used these apps in the classroom when Sun goes through the constellations so our students don't believe in horoscopes. This paper is focused on hands on activities and the effects of the

  10. A comparison of the effectiveness of a game informed online learning activity and face to face teaching in increasing knowledge about managing aggression in health settings.

    PubMed

    McKenzie, Karen

    2013-12-01

    The present study compared the impact of face to face teaching with a short online game informed learning activity on health participants' knowledge about, and confidence in, managing aggressive situations. Both forms of teaching resulted in a significant increase in participants' knowledge and confidence. Face to face training led to significantly greater increases in knowledge but was equivalent in terms of confidence. Both forms of teaching were rated positively, but face to face teaching received significantly higher ratings than the online activity. The study suggests that short online game informed learning activities may offer an effective alternative for health professional training where face to face training is not possible. Further research is needed on the longer term impact of both types of training on practice. PMID:23184436

  11. Linking Learning Activities and Assessment Activities to Learning Outcomes and Assessment Standards When Teaching Technology: A Case Study

    ERIC Educational Resources Information Center

    Potgieter, Calvyn

    2013-01-01

    In this article the results of a critical reflection on the analysis of 564 technology education lesson plans are discussed. The critical reflection draws on the responses of approximately 120 South African technology education teachers in a teaching practice workbook where they had to choose a project and base five lessons on the project. The…

  12. Lateral Tip Control Effects in CD-AFM Metrology: The Large Tip Limit

    PubMed Central

    Dixson, Ronald G.; Orji, Ndubuisi G.; Goldband, Ryan S.

    2016-01-01

    Sidewall sensing in critical dimension atomic force microscopes (CD-AFMs) usually involves continuous lateral dithering of the tip or the use of a control algorithm and fast response piezo actuator to position the tip in a manner that resembles touch-triggering of coordinate measuring machine (CMM) probes. All methods of tip position control, however, induce an effective tip width that may deviate from the actual geometrical tip width. Understanding the influence and dependence of the effective tip width on the dither settings and lateral stiffness of the tip can improve the measurement accuracy and uncertainty estimation for CD-AFM measurements. Since CD-AFM typically uses tips that range from 15 nm to 850 nm in geometrical width, the behavior of effective tip width throughout this range should be understood. The National Institute of Standards and Technology (NIST) has been investigating the dependence of effective tip width on the dither settings and lateral stiffness of the tip, as well as the possibility of material effects due to sample composition. For tip widths of 130 nm and lower, which also have lower lateral stiffness, the response of the effective tip width to lateral dither is greater than for larger tips. However, we have concluded that these effects will not generally result in a residual bias, provided that the tip calibration and sample measurement are performed under the same conditions. To validate that our prior conclusions about the dependence of effective tip width on lateral stiffness are valid for large CD-tips, we recently performed experiments using a very large non-CD tip with an etched plateau of approximately 2 μm width. The effective lateral stiffness of these tips is at least 20 times greater than typical CD-AFM tips, and these results supported our prior conclusions about the expected behavior for larger tips. The bottom-line importance of these latest observations is that we can now reasonably conclude that a dither slope of 3 nm

  13. Effect of inflow cannula tip design on potential parameters of blood compatibility and thrombosis.

    PubMed

    Wong, Kai Chun; Büsen, Martin; Benzinger, Carrie; Gäng, René; Bezema, Mirko; Greatrex, Nicholas; Schmitz-Rode, Thomas; Steinseifer, Ulrich

    2014-09-01

    During ventricular assist device support, a cannula acts as a bridge between the native cardiovascular system and a foreign mechanical device. Cannula tip design strongly affects the function of the cannula and its potential for blood trauma. In this study, the flow fields of five different tip geometries within the ventricle were evaluated using stereo particle image velocimetry. Inflow cannulae with conventional tip geometries (blunt, blunt with four side ports, beveled with three side ports, and cage) and a custom-designed crown tip were interposed between a mixed-flow rotary blood pump and a compressible, translucent silicone left ventricle. The contractile function of the failing ventricle and hemodynamics were reproduced in a mock circulation loop. The rotary blood pump was interfaced with the ventricle and aorta and used to fully support the failing ventricle. Among these five tip geometries, high-shear volume ( γ ˙ ≥ 2778 / s , potential parameter of platelet activation) was found to be the greatest in the blunt tip. The cage tip was observed to have the highest low-shear volume and recirculation volume ( γ ˙ ≤ 100 / s and Vz  > 0, respectively; potential parameters of thrombus formation). The crown tip, together with conventional tip geometries with side ports (blunt with four side ports and beveled with three side ports) showed no significant difference in either high-shear volume or low-shear volume. However, recirculation volume was reduced significantly in the crown tip. Despite limited generalizability to clinical situations, these transient-state measurements supported the potential mitigation of complications by changing the design of conventional cannula tip geometries.

  14. The use of parent involved take-home science activities during student teaching: Understanding the challenges of implementation

    NASA Astrophysics Data System (ADS)

    Zarazinski, Jill

    The purpose of this study was to identify student teachers use and implementation of Science in a Bag when it was no longer a required course-based assessment. This take-home science activity acted as the elaboration component of the 5Es lesson teacher candidates designed and taught in the classroom, utilized household items, and directly involved parents in their child's education. The purposeful sample was comprised of six teacher candidates during their student teaching practicum, the last semester of the childhood education teacher certification program. This collective case study centered on student teachers' use of the focused activity, Science in a Bag, in order to gain knowledge of challenges faced in applying take-home science kits and working with parents. Data collection was comprised of student teacher and parent interviews, candidate reflections, as well as in-class observations and discussions carried out during weekly seminars. Data collection occurred throughout the seven-week student teaching practicum. The four research questions were: 1) What factors do teacher candidates identify as interfering with their ability to implement Science in a Bag during student teaching placements? 2) What factors do teacher candidates identify as enhancing their ability to carry out Science in a Bag? 3) What forms of support do teacher candidates believe are important to their success in implementing Science in a Bag during student teaching? 4) How do teacher candidates deal with obstacles when implementing Science in a Bag? Despite the fact that no student teacher was prohibited from implementing Science in a Bag, the level to which candidates valued and utilized this instructional strategy varied compared to how they were taught and practiced it during the science methods course. Some student teachers attempted to hide their feelings toward Science in a Bag, however their actions revealed that they were simply carrying out the instructional strategy because they

  15. Mersilene tip implants in rhinoplasty: a review of 98 cases.

    PubMed

    Fanous, N

    1991-04-01

    Reshaping the nasal tip is the most difficult part of a rhinoplasty, particularly in certain types of nasal tip deformities, such as the recessed tip, the thick-skin tip, the boxy tip, the asymmetrical tip, the thin-skin tip, the bifid tip, the turned-up tip, and the turned-down tip. A new approach is introduced regarding the use of Mersilene tip implants. Guidelines for preoperative evaluation and surgical technique are outlined. The so-called "PEPSI" rule (pocket, experience, positioning, shape and size, and incision) is emphasized. The advantages and disadvantages of the Mersilene tip implant are discussed. The Mersilene implant was used in the tip region in a total of 98 patients, and the results are satisfactory.

  16. The Tipping Point in School Culture

    ERIC Educational Resources Information Center

    Nelsen, Jeff; Hill, Bob

    2009-01-01

    Once changes or innovations reach the tipping point, they spread throughout an organization and become entrenched as part of the culture, becoming "just the way we do things around here." These authors see the tipping point at play with systemic improvement in two urban school districts with which they have worked. Here, they describe the lessons…

  17. News: Tripping over tipping points/elements

    EPA Science Inventory

    The term “tipping point” has been used to identify a critical threshold susceptible to a tiny perturbation that can qualitatively alter the state or development of a system. “Tipping element” has been introduced to describe large-scale components of the Earth system that may pass...

  18. Tip cell-derived RTK signaling initiates cell movements in the Drosophila stomatogastric nervous system anlage.

    PubMed

    González-Gaitán, M; Jäckle, H

    2000-10-01

    The stomatogastric nervous system (SNS) of Drosophila is a simply organized neural circuitry that innervates the anterior enteric system. Unlike the central and the peripheral nervous systems, the SNS derives from a compact epithelial anlage in which three invagination centers, each giving rise to an invagination fold headed by a tip cell, are generated. Tip cell selection involves lateral inhibition, a process in which Wingless (Wg) activity adjusts the range of Notch signaling. Here we show that RTK signaling mediated by the Drosophila homolog of the epidermal growth factor receptor, DER, plays a key role in two consecutive steps during early SNS development. Like Wg, DER signaling participates in adjusting the range of Notch-dependent lateral inhibition during tip cell selection. Subsequently, tip cells secrete the DER ligand Spitz and trigger local RTK signaling, which initiates morphogenetic movements resulting in the tip cell-directed invaginations within the SNS anlage.

  19. 'Oxide-free' tip for scanning tunneling microscopy

    NASA Technical Reports Server (NTRS)

    Colton, R. J.; Baker, S. M.; Baldeschwieler, J. D.; Kaiser, W. J.

    1987-01-01

    A new tip for scanning tunneling microscopy and a tip repair procedure that allows one to reproducibly obtain atomic images of highly oriented pyrolytic graphite with previously inoperable tips are reported. The tips are shown to be relatively oxide-free and highly resistant to oxidation. The tips are fabricated with graphite by two distinct methods.

  20. Physical Education for Students with Autism: Teaching Tips and Strategies

    ERIC Educational Resources Information Center

    Menear, Kristi Sayers; Smith, Shannon

    2008-01-01

    Students with autism have needs during physical education that resemble their needs throughout other parts of the day. Many students with autism work with a structured and consistent routine, visual boundaries, and reduced negative sensory stimulation. Meeting these needs requires much effort on the part of physical educator because the physical…