These are representative sample records from Science.gov related to your search topic.
For comprehensive and current results, perform a real-time search at Science.gov.
1

Hands-on Activities for Teaching Biology  

NSDL National Science Digital Library

These hands-on, minds-on activities engage students in experiments or simulation activities and incorporate multiple questions designed to foster student understanding of important concepts in the life sciences. Topics covered include biological molecules, diffusion, metabolism, cell division, genetics, molecular biology, evolution, diversity, human physiology and design and interpretation of experiments. These activities were designed for teaching high school or middle school students, but many of these activities can also be used in non-major introductory college biology classes. To accommodate limited budgets, most of these activities can be carried out with minimum equipment and expense for supplies. Additional minds-on activities for teaching biology, including discussion activities, are available at http://serendip.brynmawr.edu/exchange/bioactivities. Most of the activities are described in student handouts and teacher notes; the student handouts are available as Word files for teachers to customize for their students.

Waldron, Ingrid; Doherty, Jennifer

2

A Mentoring Program with Hands-on Laboratory Experiments  

NSDL National Science Digital Library

This article describes a program in which middle-school girls are paired with women undergraduate science majors to carry out hands-on laboratory experiments that relate everyday life. The goal of this science mentoring program is to encourage middle-scho

Nancy E. Lee

1999-09-01

3

Hands-On Activities and Their Influence on Students' Interest  

ERIC Educational Resources Information Center

This study investigates the influence of hands-on activities on students' interest. We researched whether students with experience in specific hands-on activities show higher interest in these activities than students without experience. Furthermore, the relationship between the quality of the hands-on experience and interest in the respective…

Holstermann, Nina; Grube, Dietmar; Bogeholz, Susanne

2010-01-01

4

Hands-on Activities and Their Influence on Students' Interest  

NASA Astrophysics Data System (ADS)

This study investigates the influence of hands-on activities on students’ interest. We researched whether students with experience in specific hands-on activities show higher interest in these activities than students without experience. Furthermore, the relationship between the quality of the hands-on experience and interest in the respective activity was examined. In total, 28 typical hands-on activities of biology education were considered. The activities were divided into the categories experimentation, dissection, work with microscopes, and classification. A total of 141 students from the 11th grade completed questionnaires on interest in the hands-on activities, their experience with each activity, and the quality of the respective experience. Students’ interest in experimenting, working with microscopes, dissecting and classifying tends to benefit from performing hands-on activities. However, findings indicated that the performance of various hands-on activities can influence students’ interest differently. For seven hands-on activities, we identified a positive effect of hands-on experience on interest, while in one case, practical work appeared to have influenced students’ interest negatively. However, for most hands-on activities, no effect of experience on interest was found. The quality of hands-on experiences showed positive correlations with interest in the respective hands-on activities. Therefore, this paper argues in favour of designing biology lessons that allow for experiences with hands-on activities that also interest students. Our findings underline the necessity of investigating the effects of various hands-on activities in a differentiated manner.

Holstermann, Nina; Grube, Dietmar; Bögeholz, Susanne

2010-11-01

5

Hands-on astronomy activities for the elementary school  

SciTech Connect

We held a series of astronomy workshops for local school teachers using astronomy activities from a course we give for Elementary Education majors. The school teachers provide us with feedback about successes and failures. Then we try the revised activities in the classroom. Via this in-service and pre-service feedback, the astronomy laboratory activities in the course have been completely revised over the last three years. The activities we use are almost entirely hands-on. The activities include use of log book (or journal) for describing outside-of-class observations of sunsets, phases of the moon, portable sundial, and the somewhat unique method we use to teach the constellations. In addition, all laboratory activity records are kept in the log book. Laboratory activities cover the use of fists to measure degrees, constellations, phases of the moon, relative distances and size of planets, Invent an Alien, lenses, images and telescopes, and the making of a comet. In our poster, based roughly on the theme of the seasons, we will describe a portable, multi-user sundial, length of the day display using newspaper data, two temperature/season activities, and a model demonstration of why the sundial shadows behave as they do.

Lutz, T.E.; Horne, J.C. [Washington State Univ., Pullman, WA (United States)

1994-12-31

6

Software to Enhance Hands-On Laboratory Experimentation  

NSDL National Science Digital Library

This presentation from MATEC explains the transition from using software to getting hands-on experience in a lab. The laboratory setting in technology related courses is an integral part of the learning experience for the student. It takes the theory that is being learned in the lecture and applies that theory. The text books that are used in the lecture include a copy of either Multi Sim or Electronic Workbench. The software gives the student the ability to "build" the circuits that are under study without the hardware that is found in the lab. The students at Grambling State University are not utilizing the software in the beginning level classes. The students must start utilizing the software earlier in the educational career. To accomplish this, the students are starting to complete the lab assignments with software before going to the lab. By doing this, the students will know what to expect before starting lab. This can and hopefully will remove some confusion that the beginner level circuit student has when constructing a circuit. The next step to improving and enhancing the laboratory experience for the student is to add a computer system to each laboratory station. Each system will contain software and hardware that will connect the test instruments to the computer and perform a multitude of analysis functions. The software that has stimulated some interest is MatLab. MatLab includes curriculum for some of the following: digital signal processing, digital image processing, digital filters, signals and systems, speech processing, computer-controlled systems, applied digital signal processing, dynamic modeling of engineering systems, and continuous-time linear systems. In conclusion, the learning invention for this laboratory is to bring together the lecture and lab through the implementation of software and hardware. This was part of the Learning Invention Labs that MATEC held. Visit the MATEC.org homepage for more information.

Flinders, Shirley

2013-01-01

7

Hands-On Environmental Education Activities for K-6 Teachers.  

ERIC Educational Resources Information Center

This environmental education workbook is aimed at helping kindergarten through 6th-grade teachers and contains hands-on activities directly targeted toward a particular age group, with equal distribution to each grade. Subject area descriptions and several multicultural activities are also included. Each activity lists the title, subject taught,…

Kaufman, Donald G.; Eshbaugh, Stephen H.

8

Fun with Hands-on Science Activities for Elementary Teachers.  

ERIC Educational Resources Information Center

This document contains hands-on activities in science that make use of balloons and are fun and stimulating as well as challenging. By actively participating in these activities, students can develop science process and critical thinking skills as well as technical and measuring skills. Topics include Air as Matter, Pressure, Chemical Change,…

Barry, Dana M.

9

Hands-On Classroom Photolithography Laboratory Module to Explore Nanotechnology  

ERIC Educational Resources Information Center

Nanotechnology is an area of significant interest and can be used as a motivator for students in subject areas including physics, chemistry, and life sciences. A 5X reducer system and associated lesson plan was used to provide students a hands-on exposure to the basic principles of photolithography and microscale circuit fabrication.

Stelick, Scott J.; Alger, William H.; Laufer, Jesse S.; Waldron, Anna M.; Batt, Carl A.

2005-01-01

10

Exploring Planets in the Classroom: Hands-On Activities  

NSDL National Science Digital Library

Provided by the Hawaii Space Grant Consortium, the Exploring Planets in the Classroom: Hands-On Activities Web site offers 25 science activities for students. Categories include an introduction to the solar system, planetary properties, volcanology, impact craters, dynamic earth, gradation, gravity forces and rockets, the moon, remote sensing, and Mars. Just one example of the many quality activities shows students how to build an accelerometer to measure g-forces.

1996-01-01

11

Hands-on laboratory Experience in Teaching-Learning Physiology.  

ERIC Educational Resources Information Center

The results of actual student participation, with organized group discussions, which show that laboratory teaching remains the premiere mechanism for teaching and learning organ-system physiology are discussed. Laboratories using a pithed frog, a turtle heart, an anesthetized rabbit, and noninvasive recordings from students during exercise are…

Randall, Walter C.; Burkholder, Timothy

1990-01-01

12

Curriculum Materials: Hands-On Activities from The Water Sourcebook  

NSDL National Science Digital Library

These curriculum materials are from The Water Sourcebook series, a popular set of hands-on water environment activities. The activities, arranged by grade level, range from construction of a big book about water in the life of a fish for younger students to the exploration of the physics of artesian flow for older learners. Topics include the water cycle, conservation, consumption, contamination, treatment, landfills, rivers, flow dynamics, and detecting radon. Correlations to other subject areas are indicated. Several of the activities are available in Spanish. There are also links to information and a poster about careers in the water environment field.

13

Casting Castings: A Classroom Hands-on Activity  

NSDL National Science Digital Library

This learning activity will provide a useful technique for students to learn casting concepts. The class will be allowed a hands-on experience with casting. Students will make their own fishing sinkers. The lesson plan document includes step by step instructions for the lesson along with photographs.This activity would be appropriate for high school and college level students. The lesson should take about one hour of class time. This document will serve as a framework for instructors and may be downloaded in PDF format.

Johnson, Craig

2012-11-08

14

Development of Hands-On CFD Educational Interface for Undergraduate Engineering Courses and Laboratories  

Microsoft Academic Search

Development described of an educational interface for hands-on student experience with computational fluid dynamics (CFD) for undergraduate engineering courses and laboratories. Project part of a three-year National Science Foundation sponsored Course, Curriculum and Laboratory Improvement - Educational Materials Development project with faculty partners from colleges of engineering at Iowa, Iowa State, Cornell and Howard universities along with industrial (commercial CFD

Fred Stern; Tao Xing; Don Yarbrough; Alric Rothmayer; Ganesh Rajagopalan; Prakash Otta; David Caughey; Rajesh Bhaskaran; Sonya Smith; Barbara Hutchings; Shane Moeykens

2004-01-01

15

Technology and Engineering Education Students' Perceptions of Hands-On and Hands-Off Activities  

ERIC Educational Resources Information Center

Technology and engineering education students responded to a survey regarding hands-on and hands-off activities. First, the students listed hands-on and hands-off activities and what characterized the two types of activities. Activities such as building or assembling something as well as working manually with tools were viewed as hands-on. Passive…

Sianez, David M.; Fugere, Madeleine A.; Lennon, Carter A.

2010-01-01

16

Hands-On and Minds-On Modeling Activities to Improve Students' Conceptions of Microscopic Friction  

E-print Network

Hands-On and Minds-On Modeling Activities to Improve Students' Conceptions of Microscopic Friction of hands-on and minds-on modeling activities geared towards improving students' understanding imply that through a series of carefully designed hands-on and minds-on modeling activities

Zollman, Dean

17

Hands-on Lessons and Activities about Plants  

NSDL National Science Digital Library

This article highlights hands-on or multimedia lesson plans about plant structures, growth and development, seed production, and dispersal. Science lessons are paired with suggested literacy lesson plans. All lessons are aligned to national standards.

Jessica Fries-Gaither

18

Hands On??  

ERIC Educational Resources Information Center

Describes the facilities and programs of two major hands-on learning centers for children: the Capitol Children's Museum in Washington, D.C. and Sesame Place in Bucks County, Pennsylvania. Computer-oriented activities are emphasized. A table describing several other hands-on learning centers accompanies the text. (JL)

Wrege, Rachael

1982-01-01

19

Promoting Female Students' Learning Motivation towards Science by Exercising Hands-On Activities  

ERIC Educational Resources Information Center

The purpose of this study is to design different hands-on science activities and investigate which activities could better promote female students' learning motivation towards science. This study conducted three types of science activities which contains nine hands-on activities, an experience scale and a learning motivation scale for data…

Wen-jin, Kuo; Chia-ju, Liu; Shi-an, Leou

2012-01-01

20

Do Predators Always Win? Starfish versus Limpets: A Hands-On Activity Examining Predator-Prey Interactions  

ERIC Educational Resources Information Center

In this article we propose a hands-on experimental activity about predator-prey interactions that can be performed both in a research laboratory and in the classroom. The activity, which engages students in a real scientific experiment, can be explored not only to improve students' understanding about the diversity of anti-predator behaviors but…

Faria, Claudia; Boaventura, Diana; Galvao, Cecilia; Chagas, Isabel

2011-01-01

21

Hands-On Experience with a Turbojet Engine in the Thermal Science Laboratory Course  

NSDL National Science Digital Library

Thermal Science laboratory is the third course in the sequence of four mechanical engineering laboratories offered by the Department of Mechanical Engineering at North Carolina A&T State University. The course is one credit hour, meeting once a week for two hours. The course includes selected experiments on heat transfer and thermodynamics. In an effort to give students a combination of theoretical background and hands-on experience, a new experiment on gas turbine engine was introduced. This paper describes the experiences the students gained in this experiment. During this laboratory the students actually learned how to operate a turbojet engine, collected and analyzed the output data including thrust and efficiency, and related the experimental result to the theory learned in the thermodynamics course. This experiment complemented the thermal science laboratory course and fully integrated some aspects of thermodynamics and enhanced the students learning process.

Saad, Messiha

2011-04-22

22

The Effects of CAI and Hands-On Activities on Elementary Students' Attitudes and Weather Knowledge.  

ERIC Educational Resources Information Center

The purpose of this study was to determine if a combination of computer assisted instruction (CAI) with hands-on science activities would significantly enhance students' abilities in the cognitive and affective domains. The study consisted of three treatments. Treatment one (47 students) included a hands-on activities emphasis. A second treatment…

Gardner, Catherine; And Others

23

Science Action Labs Part 3: Puzzlers. An Innovative Collection of Hands-On Science Activities and Labs.  

ERIC Educational Resources Information Center

This book contains hands-on science laboratory activities for grades 4 through 9 that use discrepant events to challenge students. All of the "puzzlers" are based upon science principles and include directions for building gadgets that explain the "puzzlers." Topics covered include: volume conservation, magnetic phenomena, optical illusions,…

Shevick, Ed

24

Hands-on Activities That Simulate Polar Science  

NSDL National Science Digital Library

This article highlights science lessons and activities that can help elementary students gain an understanding of the tools and technology involved in polar research. Suggestions for literacy integration are provided, and activities are aligned to national standards.

Jessica Fries-Gaither

25

Hands-On Environmental Science Activities. Teacher's Edition. First Edition.  

ERIC Educational Resources Information Center

The ability of students to go beyond facts and to think critically, while at the same time enjoying and valuing the learning process, is fundamental to science and environmentalism. This book provides enrichment activities for the science curriculum that provide concrete connections with important world events. Each activity is self-contained and…

Kutscher, Eugene

26

Hands-on Activities for understanding Ammonite Sutures  

NSDL National Science Digital Library

There is a lot of primary literature on the origin (and purpose) of complex sutures in ammonites. It is still hotly debated what (if any) benefit complex sutures may have imparted to ammonites. But to start this whole topic (which results in an essay on whether changes in sutures represent a passive or driven trend), I use a set of hands-on exercises that are fun and eye-opening: examining cross-sections through modern nautilus shells, making a play-doh model of an ammonite, and using a Hele-Shaw cell experiment to make complex dendritic shapes. I have found over the years, that students (and my faculty colleagues, too) can easily point out sutures to me on the ammonite fossils in our collection, but they really don't know what they're pointing to (they honestly don't!). So, I split my students (I usually have around 30 in my 200-level Paleobiology course) into teams of three, and we do several things (I do this all in one 4-hour lab, but you could easily do these in separate periods). First, they get an ammonite fossil (always a sediment-filled specimen with the mother of pearl phragmacone at least mostly gone so some of the sutures are clearly visible), and a couple of modern nautilus shells cut in half (I purchase these online from seashellcity.com), and some play-doh (little 2-oz different color tubs I get from Kmart). They have to determine, and then build a model (using play-doh), what they're looking at when they're looking at the ammonite fossils, in particular, the sutures (sans sediment). They are allowed to look stuff up online or in their text. Results are amazing. I've had many teams build a very nice ammonite (usually a tube of play-doh, representing just one chamber with two septal walls at either end of the tube) and then they use a pencil to sketch the sutures on the outside of the phragmacone! I tell them to rethink this and then they work on it more... It's really cool when they finally realize that to make a model of the fossil sutures that they're looking at, they need to peel off their play-doh phragmacone to reveal the sutures (which are just the 1D line at the end of a 2D septal plane) (although the actual 1D 2D thing gets interesting when we delve into the fractal nature of the sutures, see below). Also, the modern nautilus shells beautifully show the difference between growth lines and sutures/septa. So I augment my assessment of their understanding by literally having each student individually trace for me (with their finger) what the suture is on one of the nautilus shells, and what a growth line is (the supplier I use polishes off the periostracum to reveal the mother of pearl with obvious growth lines). I have also taken whole Nautilus shells and buffed off a part of the phragmacone to reveal the edge of the septal wall, which is the exact equivalent of a suture in an ammonite). Then, we run a Hele-Shaw experiment to get viscous fingering (which resembles ammonite sutures). I borrowed this hele-shaw design from the Center for Polymer Studies at Boston University (http://polymer.bu.edu/edu/) Exploring Patterns in Nature. It consists of a pair of ~10-inch square glass plates, one with a hole drilled in it (our Shop makes these for me from standard glass). The hole is a size that fits common plastic tubing (outside diameter) which in turn fits a standard small syringe inside the tubing. The experiment works like this: put a 3 to 5 inch long piece of plastic tube in the hole, but make sure it doesn't stick out the other side (not more than flush), and seal this with some sort of removable sealant; let the sealant stiffen, and clean both plates with windex. Then, on the solid plate, put two stacked thin-section cover slips (I use micro glass little slips) at the corners of the plate, then put the hole-plate with tube up, on top of the cover slips (the inside surfaces need to be very clean), then clip the two plates together with binder clips on each corner. This is a Hele-Shaw cell. Then, with the syringe, inject glycerol between the plates, careful not to put too much in that is squirts out the sides. Then take a syringe with food color in it (darker works better) and inject the food color between the plates. The food coloring injects through the glycerol already in the tube. A beautiful dendrite is created. Compare these with ammonite sutures. You can take it from here. I then stop the exercise and introduce the essay assignment (see uploaded documents).

Cowan, Clint

27

Flower Bulb Science: Activities for the Hands-on Classroom  

NSDL National Science Digital Library

Learn about The Bulb Project, a website for educators full of activities that demonstrate the value and cross-curricular opportunities of growing flower bulbs for the classroom. These activities encourage students to become more ecologically aware, allow for community involvement, and increase student awareness of the environment. Share your ideas as well on this site developed at Cornell University. This seminar features our experts from the Cornell University Department of Horticulture: Marcia Eames-Sheavly of the Garden-Based Learning Program and Craig Cramer, Communications Specialist, with special guest and site developer Elly Cramer from the National Science Digital Library.

Payo, Robert

28

Small Wonders. Hands-On Science Activities for Young Children.  

ERIC Educational Resources Information Center

Children are natural scientists and are constantly questioning and challenging the world around them. This book is designed to help preschool and primary teachers see the science in common things. It is a book of manipulative activities that are designed to nurture a child's natural curiosity as well as integrate science with other areas.…

Perdue, Peggy K.

29

Hands-On and Minds-On Modeling Activities to Improve Students' Conceptions of Microscopic Friction  

NSDL National Science Digital Library

In this paper we discuss the development and validation of hands-on and minds-on modeling activities geared towards improving students' understanding of microscopic friction. We will also present our investigation on the relative effectiveness of the use of the developed instructional material with two lecture formatsâtraditional and videotaped lectures. Results imply that through a series of carefully designed hands-on and minds-on modeling activities, it is possible to facilitate the refinement of students' ideas of microscopic friction.

Corpuz, Edgar D.; Rebello, N. S.

2009-07-06

30

Hands-On in the Non-Laboratory Classroom Reconstructing Plant Phylogenies Using Morphological Characters  

ERIC Educational Resources Information Center

Laboratory components of introductory biology college-level courses are becoming increasingly rare. Due to the absence of laboratory funding and time, instructors at all levels are faced with the problem of implementing inquiry-based projects. In this article, the authors present an activity that they developed for the 50-minute discussion period…

Flory, S. Luke; Ingram, Ella L.; Heidinger, Britt J.; Tintjer, Tammy

2005-01-01

31

Does the Lack of Hands-On Experience in a Remotely Delivered Laboratory Course Affect Student Learning?  

ERIC Educational Resources Information Center

Educators question whether performing a laboratory experiment as an observer (non-hands-on), such as conducted in a distance education context, can be as effective a learning tool as personally performing the experiment in a laboratory environment. The present paper investigates this issue by comparing the performance of distance education…

Abdel-Salam, Tarek; Kauffman, Paul J.; Crossman, Gary

2006-01-01

32

The Art and Science Connection. Hands-On Activities for Primary Students.  

ERIC Educational Resources Information Center

Most people think that the artist and the scientist live in two totally different worlds. However, art and science are only two different ways of understanding and knowing the world. To help primary students make a connection between art and science, a collection of hands-on activities have been developed. By engaging in these activities that…

Tolley, Kimberley

33

Pi in the Sky: Hands-on Mathematical Activities for Teaching Astronomy.  

ERIC Educational Resources Information Center

This book of activities was designed to provide students with the opportunity to create mental models of concepts in astronomy while using simple, homemade tools. In addition, these sequential, hands-on activities are to help students see how scientific knowledge is obtained. The introduction describes the rationale for the book and describes the…

Pethoud, Robert

34

A Hands-On Activity Incorporating the Threefold Representation on Limiting Reactant  

ERIC Educational Resources Information Center

Many students share the common belief that the limiting reactant in a chemical reaction is the reactant in the smallest quantity of material. To help students overcome this difficulty a hands-on activity for the limiting reactant concept was developed. The activity incorporates the three levels of representation (macroscopic, submicroscopic, and…

Gonza´lez-Sa´nchez, Ange´lica M.; Ortiz-Nieves, Edgardo L.; Medina, Zuleikra

2014-01-01

35

Oak Ridge National Laboratory`s (ORNL) ecological and physical science study center: A hands-on science program for K-12 students  

SciTech Connect

In our tenth year of educational service and outreach, Oak Ridge National Laboratory`s Ecological and Physical Science Study Center (EPSSC) provides hands-on, inquiry-based science activities for area students and teachers. Established in 1984, the EPSSC now hosts over 20,000 student visits. Designed to foster a positive attitude towards science, each unit includes activities which reinforce the science concept being explored. Outdoor science units provide field experience at the Department of Energy`s Oak Ridge National Environmental Research Park and outreach programs are offered on-site in area schools. Other programs are offered as extensions of the EPSSC core programs, including on-site student science camps, all-girl programs, outreach science camps, student competitions, teacher in-service presentations and teacher workshops.

Bradshaw, S.P. [Oak Ridge National Lab., TN (United States)

1994-12-31

36

Hands-on-CERN  

NSDL National Science Digital Library

The purpose of the Hands-On CERN project is to increase understanding of the most fundamental processes inside matter, and to explain modern research about particle collisions. The site includes many lab activities, interactive resources, and background information for teachers and learners. CERN is the European Organization for Nuclear Research. It's primary function is to provide the particle accelerators and other infrastructure needed for high-energy physics research. Its laboratory houses the LHC (Large Hadron Collider).

2011-09-13

37

Effects of Combined Hands-on Laboratory and Computer Modeling on Student Learning of Gas Laws: A Quasi-Experimental Study  

ERIC Educational Resources Information Center

Based on current theories of chemistry learning, this study intends to test a hypothesis that computer modeling enhanced hands-on chemistry laboratories are more effective than hands-on laboratories or computer modeling laboratories alone in facilitating high school students' understanding of chemistry concepts. Thirty-three high school chemistry…

Liu, Xiufeng

2006-01-01

38

Effectiveness of Hands-on and Minds-on Activities on Students' Achievement and Attitudes towards Physics  

ERIC Educational Resources Information Center

This research aimed to investigate the effectiveness of hands-on and minds-on activities on ninth grade students' achievement in and attitudes towards simple electric circuits. The study was conducted with 130 students, 70 of which were assigned as experimental group and instructed by hands-on/minds-on activities, while the 60 were assigned as…

Ates, Ozlem; Eryilmaz, Ali

2011-01-01

39

Partnership with informal education learning centers to develop hands-on activities for research outreach efforts  

NASA Astrophysics Data System (ADS)

Outreach informed by scientific research plays an important role in fostering interest in science by making science and scientists accessible, fun, and interesting. Developing an interest in science in young, elementary-aged students through outreach is a rewarding endeavor for researchers, in that audiences are usually receptive, requirements for broader impacts are met, and bonds are formed between researchers and members of their local and surrounding communities. Promoting such interest among young students is imperative not only for an individual researcher's own self interest, but also for the strength of American science and innovation moving forward, and is the responsibility of the current generation of scientists. Developing genuine and successful inquiry-based, hands-on activities for elementary-aged students is outside the expertise of many researchers. Partnering with an informal education learning center (i.e. science museum or after-school program) provides researchers with the expertise they might be lacking in such endeavors. Here, we present a series of polar-, engineering- and microbiology-themed hands-on activities that have been developed by researchers at a government lab in partnership with a local science museum. Through a series of workshops, the science education staff at the museum provided researchers with background and instruction on inquiry and hands-on activities, and then collaborated with the researchers to develop activities which were later demonstrated at the museum to museum-goers. Education staff provided feedback about the presentation of the activities for further refinement. The program provided an opportunity for researchers to develop fun, on-target and age-appropriate science activities for elementary-aged students, an audience for outreach, and enabled general public audiences the chance to interact with researchers and scientists in an informal setting.

Courville, Z.; Haynes, R.; DeFrancis, G.; Koh, S.; Ringelberg, D.

2012-12-01

40

Informal Activities with Lasers, Lights, and Lenses: The Hands-On Optics Project  

NASA Astrophysics Data System (ADS)

The Hands-On Optics project began as a follow-up to the 2001 NSF planning grant "Optics Education -- A Blueprint for the 21st Century", which described the value of informal science programs in addressing the disconnect between the ubiquity of optics in everyday life and the noticeable absence of optics education in K-12 curricula and in informal science education programs. Key partners in the project are NOAO, SPIE-The International Society for Optical Engineering, and the Optical Society of America (OSA). The informal instructional materials created by the project are distributed through science centers nationwide and through the Mathematics, Engineering, Science Achievement Program (MESA) in a number of states, including Arizona, California, Washington, and Maryland. A key part of the project is the involvement, modeled after Project ASTRO, of optics professionals currently engaged in outreach activities and programs. Optics professionals (termed optics resource volunteers) are teamed with MESA and science center educators in implementing the program. These hands-on, high-interest, standards-connected activities and materials provide 6, three-hour-long optics activity modules that can be used in a variety of informal settings. We will describe the techniques used at NOAO to train educators, parents, and optics professionals who will work with the HOO activities as well as the different approaches needed for different informal education programs, ranging from Saturday programs, after-school programs, and science center programs. NOAO is developing the six modules and associated kits as well as competitions that have broad appeal to 12-year olds. Hands-On Optics: Making an Impact with Light (HOO) is a collaborative NSF-funded four-year informal science education program to excite students about science by actively engaging them in optics activities. NOAO is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation.

Pompea, S. M.; Sparks, C. E.; Sparks, R. T.

2005-12-01

41

Designing Blended Inquiry Learning in a Laboratory Context: A Study of Incorporating Hands-On and Virtual Laboratories  

ERIC Educational Resources Information Center

This article reports on the development of a methodology that integrates virtual and hands-on inquiry in a freshman introductory biology course. Using a two time x two order-condition design, an effective combination (blend) of the two environments was evaluated with 39 freshman biology participants. The quantitative results documented no…

Toth, Eva Erdosne; Morrow, Becky L.; Ludvico, Lisa R.

2009-01-01

42

Hands-On Remote Labs: Collaborative Web Laboratories as a Case Study for IT Engineering Classes  

Microsoft Academic Search

The development of a reusable collaborative software framework for the remote control of a large range of laboratory equipments is an interesting topic to teach information technologies in an engineering school. The design and implementation of this kind of framework, in fact, requires the ability to integrate skills about software engineering, computer networks, human-computer interaction, distributed architectures, and remote control

Mario A. Bochicchio; Antonella Longo

2009-01-01

43

Hands-on Activities Tie Science Ed Standards to Space Weather on Windows to the Universe  

NASA Astrophysics Data System (ADS)

The Windows to the Universe project includes a large web site with extensive user traffic as well as program of professional development workshops for teachers. In the past 5 years we have conducted 18 workshops dedicated exclusively to space weather and magnetism serving 573 total attendees. This talk describes our pedagogical approach of blending hands-on activities, covering basic concepts of magnetism, with visually- rich presentations of space weather topics in order to encourage teachers to incorporate space weather themes into their classroom teaching. Basic understanding of physical science themes of magnetism, electricity, forces, and motion are well represented in science education standards. Hands-on activities touching upon these themes simultaneously fulfill a teacher's need to cover topics in the standards and prepare students to comprehend more abstract representations of more complex systems relevant to space weather. Simply put, a student who has traced field lines around a bar magnet using a simple magnetometer is much better equipped to comprehend portrayals (images and animations) of complex magnetic fields associated with space weather phenomena. Thus, one of our main approaches to space weather education has been to encourage students to explore basic physical science concepts (as outlined in education standards) via hands-on activities and then to link those simple principles to more complex and visually captivating representations of space weather phenomena. We employ two other approaches to making the connections between standards-based themes that teachers must cover and concepts that are key to the study of space weather. The first is to tap heavily into "societal impacts" elements of education standards. Space weather presents numerous instances in which phenomena of scientific interest - such as radiation hazards to spacecraft and astronauts, communications disruptions, and surges in electrical power systems - have implications for modern society. The second is to point out space weather "case studies" in which key principles from various scientific disciplines come to bear. Radiation danger associated with space weather provides one such case, bringing together knowledge of energy, forces, and motion from the physical sciences with concepts like mutation, cell repair, and cancer from the life sciences. The aurora present another rich case, combining ideas of spectroscopy and energy transitions in atoms with the chemistry of Earth's atmosphere and Earth science concepts of atmospheric structure.

Russell, R. M.; Johnson, R. M.

2008-12-01

44

Integrating Experiment, Modeling and Design using a Hands on Hydraulic Positioning Laboratory for Mechanical Control Systems Education  

NSDL National Science Digital Library

As part of a laboratory intensive curriculum, Mechanical Engineering students at California Polytechnic State University, San Luis Obispo are required to take a senior level class in Mechanical Control Systems. In addition to three one-hour lectures, students attend a weekly three hour laboratory session where course concepts are reinforced through hands-on modeling and experimentation. This paper describes a newly implemented and innovative laboratory experience which is centered on a hydraulic position control system. Often experiments in Mechanical Controls are heavily influenced by non-linearities such as friction or backlash which cause inexperienced students to lose confidence in linear system modeling as an effective analysis and design tool. A hydraulic system was chosen for this laboratory due to excellent correlation between experimental results and the linear modeling techniques taught in the course. This laboratory experience is designed to integrate linear system modeling techniques, experimentation and data collection, control system design, and design verification through physical testing using a variety of hardware and software tools. The main objectives of the laboratory are to give the students practice and confidence in advanced control system modeling, experience with precision hydraulic positioning systems, practice in designing Proportional-Integral (PI) controllers, exposure to digital control systems and experience and physical understanding of the sometimes dramatic condition of instability. The methodology includes a unique procedure that uses root locus concepts and asks the students to drive the system to instability to determine system parameters. The paper describes the laboratory experience in detail and gives some example results and an assessment of student learning.

Birdsong, Charles

45

Hands-on Lessons and Activities about the Tundra and Ecosystems  

NSDL National Science Digital Library

This article highlights hands-on or multimedia lesson plans about the tundra and ecosystem concepts. Science lessons are paired with suggested literacy lesson plans. All lessons are aligned to national standards.

Fries-Gaither, Jessica

46

Computer Assisted Fluid Power Instruction: A Comparison of Hands-On and Computer-Simulated Laboratory Experiences for Post-Secondary Students  

ERIC Educational Resources Information Center

The primary purpose of this study was to examine the effectiveness of utilizing a combination of lecture and computer resources to train personnel to assume roles as hydraulic system technicians and specialists in the fluid power industry. This study compared computer simulated laboratory instruction to traditional hands-on laboratory instruction,…

Wilson, Scott B.

2005-01-01

47

The Healthy Heart Race: A Short-Duration, Hands-on Activity in Cardiovascular Physiology for Museums and Science Festivals  

ERIC Educational Resources Information Center

The "Healthy Heart Race" activity provides a hands-on demonstration of cardiovascular function suitable for lay audiences. It was field tested during the United States of America Science and Engineering Festival held in Washington, DC, in October 2010. The basic equipment for the activity consisted of lengths of plastic tubing, a hand pump,…

Pressley, Thomas A.; Limson, Melvin; Byse, Miranda; Matyas, Marsha Lakes

2011-01-01

48

Student Responses to a Hands-On Kinesthetic Lecture Activity for Learning about the Oxygen Carrying Capacity of Blood  

ERIC Educational Resources Information Center

This article describes a new hands-on, or "kinesthetic," activity for use in a physiology lecture hall to help students comprehend an important concept in cardiopulmonary physiology known as oxygen carrying capacity. One impetus for designing this activity was to address the needs of students who have a preference for kinesthetic learning and to…

Breckler, Jennifer; Yu, Justin R.

2011-01-01

49

Improving Students' Knowledge and Attitudes of Science through the Use of Hands-On Activities.  

ERIC Educational Resources Information Center

This report documents a program for improving science knowledge, attitudes, and higher order thinking skills through experiential science. The hands-on approach used successfully in the program is described, and evidence of student improvement is also presented. The targeted population consisted of students in the first, third, and fourth grades…

Fisher, Nancy; Gerdes, Karen; Logue, Teresa; Smith, Lorna; Zimmerman, Inge

50

An Educational Device for a Hands-on Activity to Visualize the Effect of Atherosclerosis on Blood Flow  

ERIC Educational Resources Information Center

An educational device was created to develop a hands-on activity to illustrate how atherosclerosis can dramatically reduce blood flow in human vessels. The device was conceived, designed, and built at the University of Coimbra, in response to a request from the Exploratorio Infante D. Henrique Science Centre Museum, where it is presently…

de Almeida, J. P. P. G. L.; de Lima, J. L. M. P.

2013-01-01

51

Square Wheels and Other Easy-To-Build Hands-On Science Activities. An Exploratorium Science Snackbook.  

ERIC Educational Resources Information Center

This book, part of The Exploratorium science "snackbook" series, explains science with a hands-on approach. Activities include: (1) "3-D Shadow"; (2) "Bits and Bytes"; (3) "Circuit Workbench"; (4) "Diamagnetic Repulsion"; (5) "Film Can Racer"; (6) "Fractal Patterns"; (7) "Hoop Nightmares"; (8) "Hydraulic Arm"; (9) "Hyperbolic Slot"; (10) "Light…

Rathjen, Don; Doherty, Paul

52

Hands On Earth Science.  

ERIC Educational Resources Information Center

This publication is a collection of 13 hands-on activities that focus on earth science-related activities and involve students in learning about growing crystals, tectonics, fossils, rock and minerals, modeling Ohio geology, geologic time, determining true north, and constructing scale-models of the Earth-moon system. Each activity contains…

Weisgarber, Sherry L.; Van Doren, Lisa; Hackathorn, Merrianne; Hannibal, Joseph T.; Hansgen, Richard

53

Hands-On Calculus  

ERIC Educational Resources Information Center

In this paper we discuss manipulatives and hands-on investigations for Calculus involving volume, arc length, and surface area to motivate and develop formulae which can then be verified using techniques of integration. Pre-service teachers in calculus courses using these activities experience a classroom in which active learning is encouraged and…

Sutherland, Melissa

2006-01-01

54

Hands-on Herps.  

ERIC Educational Resources Information Center

Presents a hands-on activity to help primary, intermediate, and advanced students learn about and compare the general characteristics of reptiles and amphibians. Suggests "herp stations" to provide experiences. Details materials, background and procedures necessary for using this activity. (CW)

Science Activities, 1987

1987-01-01

55

HANDS-ON ACTIVITIES VERSUS WORKSHEETS IN REINFORCING PHYSICAL SCIENCE PRINCIPLES: EFFECTS ON STUDENT ACHIEVEMENT AND ATTITUDE  

Microsoft Academic Search

A posttest-only control group experimental design with a counter-balanced replication was used to determine the effects on cognitive achievement (both immediate and delayed) and attitude toward the subject matter of a hands-on activity versus a worksheet in reinforcing physical science principles. The experimental results were stable across both replications, regardless of the subject matter (Oh m 's Law or incline

Donald M. Johnson; George W. Wardlow; Timothy D. Franklin

1997-01-01

56

Progress of Systematic Hands on Devices for Active Learning Methods by Visualizing ICT Tools in Physics with Milliseconds Resolution  

NASA Astrophysics Data System (ADS)

We are developing various systematic hands on devices for progress of active learning (AL) to improve students' conceptual understanding in physics laws. We are promoting AL methods in physics education for getting deeper conceptual understanding by using various ICT-based hands on devices and using visualizing ICT tools with milliseconds resolution. Here we investigate AL modules on collisions of big balloon pendulum with another known mass pendulum to get directly the air mass in the big balloon. We also discuss on Newton's laws of blowgun darts systems by using tapioca straws where we get definite works and energy just proportional to the length of the pipes of connected tapioca straws. These AL plans by using modules of big balloon system and blowgun-darts system are shown to be very effective for deeper conceptual understanding of Newton's Laws in almost frictionless worlds.

Kobayashi, Akizo; Okiharu, Fumiko

57

Student responses to a hands-on kinesthetic lecture activity for learning about the oxygen carrying capacity of blood  

NSDL National Science Digital Library

This article describes a new hands-on, or ÃÂkinesthetic,ÃÂ activity for use in a physiology lecture hall to help students comprehend an important concept in cardiopulmonary physiology known as oxygen carrying capacity. One impetus for designing this activity was to address the needs of students who have a preference for kinesthetic learning and to help increase their understanding and engagement during lecture. This activity uses simple inexpensive materials, provides an effective model for demonstrating related pathophysiology, and helps promote active learning. The activity protocol and its implementation are described here in detail. We also report data obtained from student surveys and assessment tools to determine the effectiveness of the activity on student conceptual learning and perceptions. A brief multiple-choice pretest showed that although students had already been introduced to the relevant concepts in lecture, they had not yet mastered these concepts before performing the activity. Two postactivity assessments showed that student performance was significantly improved on the posttest compared with the pretest and that information was largely retained at the end of the course. Survey data showed that one-half of the students stated kinesthetic learning as among their learning preferences, yet nearly all students enjoyed and were engaged in this hands-on kinesthetic activity regardless of their preferences. Most students would recommend it to their peers and expressed a desire for more kinesthetic learning opportunities in the lecture curriculum.

Jennifer Breckler (San Francisco State University Biology)

2011-03-01

58

Hands-On History.  

ERIC Educational Resources Information Center

This paper asserts that interactive exhibits are more than just hands-on activities but utilize a range of techniques. The variety of techniques is explained with examples of various types of exhibits to involve the visitor in learning more about the exhibit. The paper presents several examples that strike a balance between educating in history…

Eldridge, Rachel M.

59

Hands-On Hydrology  

ERIC Educational Resources Information Center

A professional school and university collaboration enables elementary students and their teachers to explore hydrology concepts and realize the beneficial functions of wetlands. Hands-on experiences involve young students in determining water quality at field sites after laying the groundwork with activities related to the hydrologic cycle,…

Mathews, Catherine E.; Monroe, Louise Nelson

2004-01-01

60

Laboratory Activities in Israel  

ERIC Educational Resources Information Center

Laboratory activities have long had a distinctive and central role in the science curriculum, and science educators have suggested that many benefits accrue from engaging students in science laboratory activities. Many research studies have been conducted to investigate the educational effectiveness of laboratory work in science education in…

Mamlok-Naaman, Rachel; Barnea, Nitza

2012-01-01

61

Comparing Student Learning in Mechanics Using Simulations and Hands-on Activities  

E-print Network

1 , Jacquelyn J. Chini1 , N. Sanjay Rebello1 and Sadhana Puntambekar2 1Department of Physics, 116 conceptual physics laboratory sections completed the physical experiment while the other two sections energy more correctly, though neither group was able to offer sound reasoning to support their answers

Zollman, Dean

62

Hands-On Life Science Activities for Middle Schools. Teacher's Edition. First Edition.  

ERIC Educational Resources Information Center

This book provides 50 enrichment activities for the science curriculum that provide concrete connections with important world events. Each activity is self-contained and provides everything the student needs to gain a basic understanding of a concept or to work through a project. The activities include innovative and traditional projects for both…

Newman, Barbara; Kramer, Stephanie

63

Technology Systems. Laboratory Activities.  

ERIC Educational Resources Information Center

This guide contains 43 modules of laboratory activities for technology education courses. Each module includes an instructor's resource sheet and the student laboratory activity. Instructor's resource sheets include some or all of the following elements: module number, course title, activity topic, estimated time, essential elements, objectives,…

Brame, Ray; And Others

64

Hands On or Hands Off? Disgust Sensitivity and Preference for Environmental Education Activities.  

ERIC Educational Resources Information Center

Discusses barriers to environmental education. Middle school students completed a science-activity-preference scale and a disgust-sensitivity scale. Respondents who expressed the lowest interest in activities that required manipulation of organic substances also had the highest disgust-sensitivity scores. (Author/CCM)

Bixler, Robert D.; Floyd, Myron F.

1999-01-01

65

Archive: Flower Bulb Science: Activities for the Hands-on Science Classroom, February 7, 2008  

NSDL National Science Digital Library

This Web Seminar, developed in collaboration with the National Science Digital Library (NSDL) took place on Thursday, February 7, 2008, from 6:30 p.m. to 8:00 p.m. Eastern Time. In this program, the presenters discussed various activities examples and applications of how teachers can use flower bulbs in their teaching. The topics presented included experiments and observations in growing bulbs out of season, altering bulb growing variables, and learning extensions associated with the activities and experiments.

1900-01-01

66

AC 2011-75: ENHANCING STUDENT LEARNING THROUGH HANDS-ON LABORATORY EXPERIMENTS ON RENEWABLE ENERGY SOURCES  

E-print Network

mathematics or physics background. Each laboratory experiment introduced a miniature version of an energy and at the end of the academic term. Each questionnaire consisted of five different types of questions relevant on performance improvements by laboratory type, class level, gender and student major. In more detail, our

67

Comparing Student Learning in Mechanics Using Simulations and Hands-on Activities  

NSDL National Science Digital Library

Often computer simulation environments present students with an idealized version of the real world which can affect students' conceptual understanding. In this study we investigate the effects of completing an experiment in mechanics using this ideal world as compared to an identical experiment in the real world. Students in three of five conceptual physics laboratory sections completed the physical experiment while the other two sections performed the virtual experiment. The experiments were part of a unit on simple machines from the CoMPASS curriculum which integrates hypertext-based concept maps in a design-based context. There was no statistically significant difference between the pre and post data of the students in the two groups. Students who performed the virtual experiment were able to answer questions dealing with work and potential energy more correctly, though neither group was able to offer sound reasoning to support their answers.

Carmichael, Adrian; Chini, Jacquelyn J.; Rebello, N. S.; Puntambekar, Sadhana

2011-01-07

68

Give Me Some Skin: A Hands-On Science Activity Integrating Racial Sensitivity  

NSDL National Science Digital Library

What's the largest, fastest growing, organ in the human body? It's the tough, elastic, flexible, and waterproof covering that helps protect other organs and body parts from such things as germs, heat, cold, and sunlight--skin, of course! This life science activity engages middle school students in an exploration of the structure, function, and variety of skin. They "construct" skin layer by layer using simple materials such as felt, foam padding, yarn, and vinyl in various skin tones. This activity provides an opportunity to discuss racial diversity and to show students that skin color is, quite literally, only skin deep.

Houtz, Lynne E.; Quinn, Thomas H.

2003-02-01

69

Glimpses of Science: Multimedia-Enhanced Hands-On Activities for Primary School Students  

ERIC Educational Resources Information Center

"Glimpses of Science" is the outcome of collaboration between the University of New South Wales and four primary schools in the Sydney metropolitan region. A prototype kit on the topic of sound was developed and demonstrated by the team. This kit formed the basis for further science activities to be designed and produced in conjunction with the…

Hatsidimitris, George; Connor, Rick; Ginges, Jacinda; Wolfe, Joe

2010-01-01

70

Hands-On Meteorology  

NSDL National Science Digital Library

Hands-On Meteorology is a collection of interactive concept models and active learning materials for meteorology instruction. The concept models illustrate conceptually difficult processes in atmospheric science. Users change parameters in the concept models and examine the outcomes of such changes. Concept models allow for student note keeping and data export. Active learning exercises are provided as guided instruction to the concept models and to assist teachers in developing lessons. Active learning exercises are also available for meteorology topics that currently do not have a concept model.

Charlevoix, Donna

2002-01-01

71

The Lifecycle of a Mineral Deposit: A Teache's Guide for Hands-On Mineral Education Activities  

NSDL National Science Digital Library

This teacher's guide provides an introduction to the process of finding or exploring for a mineral deposit, extracting or mining the resource, recovering it, and reclaiming the mined area (sometimes called 'beneficiation' or 'life cycle'). Topics include what a mineral deposit is; how they are identified and measured, how the minerals are extracted; and how the mining site is reclaimed. There is also discussion of how minerals and mineral resources are processed and how they are used in everyday life. The guide includes ten activities that educate students on basic geologic concepts; the processes of finding, identifying, and extracting the resources from a mineral deposit; and the uses of minerals.

72

Hands-On Experiences of Undergraduate Students in Automatics and Robotics Using a Virtual and Remote Laboratory  

ERIC Educational Resources Information Center

Automatics and Robotics subjects are always greatly improved when classroom teaching is supported by adequate laboratory courses and experiments following the "learning by doing" paradigm, which provides students a deep understanding of theoretical lessons. However, expensive equipment and limited time prevent teachers having sufficient…

Jara, Carlos A.; Candelas, Francisco A.; Puente, Santiago T.; Torres, Fernando

2011-01-01

73

Manipulatives-based laboratory for majors biology - a hands-on approach to understanding respiration and photosynthesis.  

PubMed

The first course in our year-long introductory series for Biology majors encompasses four learning units: biological molecules and cells, metabolism, genetics, and evolution. Of these, the metabolism unit, which includes respiration and photosynthesis, has shown the lowest student exam scores, least interest, and lowest laboratory ratings. Consequently, we hypothesized that modeling metabolic processes in the laboratory would improve student content learning during this course unit. Specifically, we developed manipulatives-based laboratory exercises that combined paper cutouts, movable blocks, and large diagrams of the cell. In particular, our novel use of connecting LEGO blocks allowed students to move model electrons and phosphates between molecules and within defined spaces of the cell. We assessed student learning using both formal (content indicators and attitude surveys) and informal (the identification of misconceptions or discussions with students) approaches. On the metabolism unit content exam, student performance improved by 46% over pretest scores and by the end of the course, the majority of students rated metabolism as their most-improved (43%) and favorite (33%) subject as compared with other unit topics. The majority of students rated manipulatives-based labs as very helpful, as compared to non-manipulatives-based labs. In this report, we will demonstrate that students made learning gains across all content areas, but most notably in the unit that covered respiration and photosynthesis. PMID:23653756

Boomer, Sarah M; Latham, Kristin L

2011-01-01

74

Hands-On Universe  

NSDL National Science Digital Library

Hands-On Universe (HOU) is an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology. Using the Internet, HOU participants around the world request observations from an automated telescope, download images from a large image archive, and analyze them with the aid of image processing software. Student resources include a tutorial on finding asteroids in a pair of images and an astronomical tool to find constellations of stars. Teacher resources include a middle school solar system curriculum and teacher courses. There are also activities such as creating a model of the Moon, a star finder, and a flip-book animation of Jupiter.

75

Shifting Gears. Hands-on Activities for Learning Workplace Skills and English as a Second Language. A Teacher's Handbook.  

ERIC Educational Resources Information Center

This curriculum handbook uses a hands-on approach to teaching basic skills and language for the U.S. workplace to students who are not familiar with many common tools and procedures. Although designed for Southeast Asian refugees, the curriculum can be adapted for use with other groups, including older adults or young people. The handbook consists…

World Education, Inc., New York, NY.

76

Simple Protocol for Secondary School Hands-On Activity: Electrophoresis of Pre-Stained Nucleic Acids on Agar-Agar Borate Gels  

ERIC Educational Resources Information Center

An extremely simple, inexpensive, and safe method is presented, which emulates nucleic acids isolation and electrophoretic analysis as performed in a research environment, in the context of a secondary school hands-on activity. The protocol is amenable to an interdisciplinary approach, taking into consideration the electrical and chemical…

Britos, Leticia; Goyenola, Guillermo; Orono, Silvia Umpierrez

2004-01-01

77

The Universe at Your Fingertips 2.0 DVD-ROM: A Collection of Hands-on Activities, Resource Guides, Informational Articles, and Videos for Teaching Astronomy  

NASA Astrophysics Data System (ADS)

A new edition of the ASP's key educational publication The Universe at Your Fingertips has been issued in DVD-ROM format, containing 133 classroom-tested, hands-on activities (organized by subject), 43 articles with background information about topics in astronomy, 9 articles on teaching and learning space science in the 21st century, 17 guides to the best published and web resources on key topics, 12 short instructional videos, and a host of images.

Fraknoi, A.; Kruse, B.; Gurton, S.; Schmitt, A. H.; Proudfit, L.; Schatz, D.

2012-08-01

78

Enhancing laboratory activities in nuclear medicine education.  

PubMed

Hands-on or active learning is important in nuclear medicine education. As more curricula start to require greater standards and as distance education expands, the effective use of laboratories in nuclear medicine education remains important in physics, instrumentation, and imaging but is often overlooked or underutilized. Laboratory exercises are a unique opportunity for nuclear medicine educators to facilitate students' critical thinking and problem-solving skills in a manner that often cannot occur in lectures or during online education. Given the lack of current laboratory tools and publications, there exists a requirement for nuclear medicine educators to develop, enhance, and monitor educational tools for laboratory exercises. Expanding technologies, variations in imaging and measurement systems, and the need to ensure that the taught technology is relevant to nuclear medicine students are issues faced by nuclear medicine educators. This article, based on principles of instructional design, focuses on the components and development of effective and enhanced nuclear medicine laboratories in our current educational environment. PMID:19914977

Grantham, Vesper; Martin, Chris; Schmitz, Casey

2009-12-01

79

Hands-On Research Schools PARTICIPANTS  

E-print Network

the International Centre for Theoretical Physics (Trieste, Italy) U.S. National Science Foundation University (all pro bono) [not all pictured] #12;Hands-on laboratories turbulence chemical reaction #12;Human locomotion laboratory: study a peanut vendor walking #12;Fluid flow laboratory fluid between rotating

Texas at Austin. University of

80

The Amazing Animal Activity Book: Dozens of Hands-on Projects That Teach across the Curriculum. Grades 1-3.  

ERIC Educational Resources Information Center

The activities in this book are designed to encourage children's scientific curiosity as well as their creativity. Activities include puppet making, word scrambles, matching exercises, crossword and jigsaw puzzles, mobiles, games, mini books, coloring activities, Venn diagrams, and plays. These activities are intended as a foundation for children…

Bernard, Robin

81

Engaging Students in Early Exploration of Nanoscience Topics Using Hands-On Activities and Scanning Tunneling Microscopy  

ERIC Educational Resources Information Center

This manuscript reports on efforts to introduce beginning college students to the modern nanoscience field. These include: implementing selected experiments into sequencing core first-year and second-year chemistry laboratory courses; providing students with a first research experience; and engaging them in service learning and outreach programs…

Furlan, Ping Y.

2009-01-01

82

Hands-On Universe  

NASA Astrophysics Data System (ADS)

For the past four years, with support from the National Science Foundation, the Department of Energy, and the Department of Defense, Hands-On Universe (HOU) has developed and piloted an educational program that enables high school students to request their own observations from professional observatories. HOU students download CCD images from automated telescopes to their classroom computers and use the HOU- IP image processing software to visualize and analyze their data. HOU also provides comprehensive curriculum that integrates many of the topics and skills outlined in the national goals for science and math education into open-ended astronomical investigations. Over the next several years HOU will be implemented in undergraduate programs, middle schools, and informal science education centers.

Hoette, V.; Pack, H.; Spuck, T.; Rodriguez, B.; Lohman, R.; Toler, D.; Morin, T.; Pennypacker, C.; Gordon, S.; Marshall, A.; Refling, J.; Asbell-Clarke, J.; Barclay, T.

1996-12-01

83

Communication Systems. Laboratory Activities.  

ERIC Educational Resources Information Center

This communication systems guide provides teachers with learning activities for secondary students. Introductory materials include an instructional planning outline and worksheet, an outline of essential elements, a list of objectives, a course description, and a content outline. The guide contains 32 modules on the following topics: story…

Sutherland, Barbara, Ed.

84

Production Systems. Laboratory Activities.  

ERIC Educational Resources Information Center

This production systems guide provides teachers with learning activities for secondary students. Introductory materials include an instructional planning outline and worksheet, an outline of essential elements, domains and objectives, a course description, and a content outline. The guide contains 30 modules on the following topics: production…

Gallaway, Ann, Ed.

85

Diving into Science. Hands-On Water-Related Experiments. Grades 2-4.  

ERIC Educational Resources Information Center

This book contains hands-on ocean-related laboratory activities. Major chapter hearings are: (1) "Water Experiments" (dealing with the physical nature of water and listing 10 activities); (2) "Ocean-Going Vessels" (studying the principles of boats, with three experiments); (3) "Experiments Using Shells" (containing four activities); (4) "Sand…

Perdue, Peggy K.

86

Hands-on Science.  

ERIC Educational Resources Information Center

Presents activities that teach elementary students how light works by having them make rainbows. A primary-/intermediate- level activity involves conducting a rainbow color survey, and a student page provides a copy of the rainbow color survey. A primary-level activity has students create rainbows using water and a mirror. (SM)

Kepler, Lynne

1996-01-01

87

Research and Development. Laboratory Activities.  

ERIC Educational Resources Information Center

Research and Development is a laboratory-oriented course that includes the appropriate common essential elements for industrial technology education plus concepts and skills related to research and development. This guide provides teachers of the course with learning activities for secondary students. Introductory materials include an…

Gallaway, Ann, Ed.

88

Neuroscience Laboratory and Classroom Activities.  

ERIC Educational Resources Information Center

This publication is part of a larger project involving partnerships between high school biology teachers and neuroscientists. It contains neuroscience laboratories and classroom activities, most of which provide opportunities for students to design and conduct their own experiments. Each lab contains directions for both teachers and students and…

Bellamy, Mary Louise Ed.; Frame, Kathy Ed.

89

Hands-On Thunderstorms.  

ERIC Educational Resources Information Center

Introduces activities published by the National Oceanic and Atmospheric Administration (NOAA) that can be used to explain the physical properties of a thunderstorm. Activities include cloud formation and the first step of thunderstorm development, cycle of a thunderstorm, the nature of lightning, ice in a thunderstorm, and tornado warning. Lists…

Palmer, Mark H.

2000-01-01

90

Active SWIR laboratory testing methodology  

NASA Astrophysics Data System (ADS)

Active Short Wave InfraRed (SWIR) imaging presents unique challenges to laboratory testing. It is always important to have laboratory testing that will directly relate to field performance. This paper will present the modeling and corresponding laboratory testing that was developed for these types of systems. The paper will present the modeling that was used to derive the lab metric used for verification testing of the system and provide details into the design of the lab equipment that was necessary to ensure accurate lab testing. The Noise Limited Resolution (NLR) test, first developed for low light imaging systems in the 1960s, serves as the basic lab metric for the evaluation of the active SWIR system. This test serves well for a quick test (go-no go) and is used to evaluate this system during production testing. The test derivation will be described and shown how it relates to the modeling results. The test equipment developed by Santa Barbara InfraRed (SBIR) for this application allows for accurate uniform radiance levels from an integrating sphere for both 1.06um and 1.57um imaging applications. The source has the ability to directly mimic any laser system and can provide pulsed laser source radiation from 20 nanoseconds to 500 nanoseconds resulting in levels from 0.4 to 85 nJ/cm2/sr, peak radiance levels. The light source can be triggered to replicate a laser return at any range from 100m to 100,000m. Additionally, the source provides the ability to output Mid Wave IR (MWIR) illumination through the use of a small extended area IR source in the integrating sphere. This is useful for boresighting the active SWIR sensor with other sensors such as Forward Looking IR (FLIR).

Webb, Curtis M.; White, Steve; Rich, Brian

2013-06-01

91

Hands-on Science. Exploring Magnification.  

ERIC Educational Resources Information Center

Presents hands-on science activities using inexpensive, hand-held microscopes and slides made from simple, readily available materials. The article describes how to introduce students to microscopes and presents directions for using the microscopes and making slides. A student page investigates fingerprints with microscopes. (SM)

Kepler, Lynne

1993-01-01

92

Hands-on Digital Tech  

ERIC Educational Resources Information Center

Traditionally, only the best-funded schools could afford to offer students the kinds of hands-on science experiences that "real life" scientists perform. However, with the advent of digital technologies and portable, affordable handheld computing devices, real world investigations--that also address science standards--are now broadly accessible to…

Tuttle, Harry Grover

2007-01-01

93

Hands-On Nuclear Physics  

ERIC Educational Resources Information Center

Nuclear science is an important topic in terms of its application to power generation, medical diagnostics and treatment, and national defense. Unfortunately, the subatomic domain is far removed from daily experience, and few learning aids are available to teachers. What follows describes a low-tech, hands-on method to teach important concepts in…

Whittaker, Jeff

2013-01-01

94

Transforming a Traditional Hands-On Activity into an Enquiry Activity to Foster More In-Depth Understanding of the Concept of Density  

ERIC Educational Resources Information Center

Traditional methods used to teach the concept of density that employ solid objects of different masses and volumes can be supplemented by enquiry activities in which students vary the mass-to-volume ratio of the same object to test ideas about density and flotation. A simple substance, Blu-Tack, is an ideal material to use in this case. The…

Lee, Yeung Chung; Kwok, Ping Wai

2010-01-01

95

Carroll County hands-on elementary science  

SciTech Connect

Carroll County Hands-on Elementary Science is a nationally recognized Elementary Science Curriculum which has been disseminated in forty states, Puerto Rico, The Virgin Islands, Saipan, and Samoa. The curriculum is a non-textbook, process-based, constructivist approach to teaching science. Unique features of this curriculum include its teacher-written daily lesson plan format, its complete kit of science supplies, and its complete set of Spanish materials. In order to be included by the National Diffusion Network, Hands-on Elementary Science collected data to support the following claims: the program enhances teacher and student attitudes toward science; the program changes both the amount and the type of science instruction; the program is adaptable and transportable; the teacher training component is effective. The poster display will feature sample activities, data which demonstrates the effectiveness of the staff development plan, and samples which show the degree to which the program supports selected state curriculum frameworks.

Herlocker, H.G.; Dunkleberger, G.L. [Carroll County Public Schools, Westminster, MD (United States)

1994-12-31

96

Acoustics Laboratories: Active Noise Control Demo  

NSDL National Science Digital Library

The Virginia Polytechnic Institute and State University Department of Mechanical Engineering offers the Active Noise Control Experiment. The page contains an explanation of the experiment and the download file to carry it out. The experiment demonstrates how active noise control cancels a sound wave by sending a single frequency wave to the right computer speaker, which represents the noise to be canceled, and a control wave of equal amplitude and opposite phase to the left speaker to cancel the noise. Although younger kids will most likely need help from teachers or parents to set up or understand the experiment, the very interesting hands-on activity will be enjoyed by nearly every aged student.

1969-12-31

97

European Hands-on Universe  

NASA Astrophysics Data System (ADS)

Hands-on Universe is a project born at UC@Berkeley. A project devoted to enrich the teaching of Astronomy within the classroom environment with a different approach, more connected to the new technologies. Its main goals are not only to promote the use of such technologies but also to reawaken on students the taste for STEM (Science, technologies, engineering and math) related issues and also to increase their scientific culture. Eight countries in Europe decided to adopt the method and, funded by MINERVA, formed the European Hands-on Universe. Several resources were produced and a data reduction software developed http://www.euhou.net/.Other European countries are interested and should join this coordinated effort in the near future. At an international level there are 20 countries using this approach. There are plans to develop scientific cooperation among these countries. Pilot scientific research projects in schools are being tested in EU-HOU schools, Russia and USA. There is also a game being developed to be used as a new tool for teaching scientific content in the classroom environment. An effort to develop an international network of scientific / educational collaboration is the next step.

Doran, Rosa; Ferlet, Roger; Gómez de Castro, Ana I.; Hill, Robert; Horellou, Cathy; Mankiewicz, Lech; Melchior, Anne-Laure; Metaxa, Margarita; Zanazzi, Alessandra

2007-08-01

98

Engineering Water Analysis Laboratory Activity.  

ERIC Educational Resources Information Center

The purposes of water treatment in a marine steam power plant are to prevent damage to boilers, steam-operated equipment, and steam and condensate lives, and to keep all equipment operating at the highest level of efficiency. This laboratory exercise is designed to provide students with experiences in making accurate boiler water tests and to…

Schlenker, Richard M.

99

Introducing Basic Molecular Biology to Turkish Rural and Urban Primary School Children via Hands-on PCR and Gel Electrophoresis Activities  

ERIC Educational Resources Information Center

This study includes the results of a 2-day education project titled "Molecular Biology Laboratory Summer School, MoBiLYO." The project was held at a University Research Center by scientists from Department of Pharmacology and graduate students. The project was composed of introductory lectures, model construction, DNA isolation,…

Selli, Cigdem; Yildirim, Gokce; Kaymak, Aysegul; Karacicek, Bilge; Ogut, Deniz; Gungor, Turkan; Erem, Erdem; Ege, Mehmet; Bümen, Nilay; Tosun, Metiner

2014-01-01

100

Introductory Industrial Technology II. Laboratory Activities.  

ERIC Educational Resources Information Center

This guide contains 29 learning modules intended for use by technology teachers and students in grade 8. Each module includes a student laboratory activity and instructor's resource sheet. Each student activity includes the following: activity topic and overview, challenge statement, objectives, vocabulary/concepts reinforced, equipment/supplies,…

Towler, Alan L.

101

Handwashing Laboratory Activities: Bowl Technique  

NSDL National Science Digital Library

In this lab (Activity #2 on page), learners compare bacteria growth on two petri dishes containing nutrient agar. Learners touch the doors, faucets, etc. in bathroom and then immerse their hands in 100 ml sterile water. They place 0.5 ml of this "dirty" water into one petri dish. They repeat this process again but wash their hands before immersing them in 100 ml sterile water. Learners incubate the plates for 24-48 hours and then score the results based on the bacteria growth they observe. Use this activity to emphasize the importance of hand-washing and the effectiveness of soap to disinfect.

Christine L. Case, Ed D.

2009-01-01

102

"Didn't Get Expected Answer, Rectify It." Teaching Science Content in an Elementary Science Classroom Using Hands-On Activities  

ERIC Educational Resources Information Center

The call for inquiry science to be a part of the school science curriculum is popular in many parts of the world. While some research in this area revealed success stories of students' learning when they are engaged in student-directed, open-ended scientific inquiry activities, others are more sceptical about how these activities impact students'…

Tan, Aik-Ling; Wong, Hwei-Ming

2012-01-01

103

Are All Hands-On Activities Equally Effective? Effect of Using Plastic Models, Organ Dissections, and Virtual Dissections on Student Learning and Perceptions  

ERIC Educational Resources Information Center

This study investigated the impact of three commonly used cardiovascular model-assisted activities on student learning and student attitudes and perspectives about science. College students enrolled in a Human Anatomy and Physiology course were randomly assigned to one of three experimental groups (organ dissections, virtual dissections, or…

Lombardi, Sara A.; Hicks, Reimi E.; Thompson, Katerina V.; Marbach-Ad, Gili

2014-01-01

104

Hands-On Physics Activities with Real-Life Applications: Easy-to-Use Labs and Demonstrations for Grades 8-12  

NSDL National Science Digital Library

This comprehensive collection of nearly 200 investigations, mini-labs, and other activities uses everyday examples to make physics concepts easy to understand by providing interaction between interaction between students and their world in a way that encourages scientific reasoning. Topics covered include measurement, motion, force, pressure, energy and momentum, waves, light, and electromagnetism.

Cunningham, James

2007-09-20

105

Hands-On Whole Science.  

ERIC Educational Resources Information Center

Presents classroom activities designed to teach elementary students about soil, seeds, and sprouts and to guide them in gardening. The article also includes extension activities, home projects, and a student journal page. Curriculum materials are listed. (SM)

Markle, Sandra

1991-01-01

106

A New Two-Step Approach for Hands-On Teaching of Gene Technology: Effects on Students' Activities During Experimentation in an Outreach Gene Technology Lab  

NASA Astrophysics Data System (ADS)

Emphasis on improving higher level biology education continues. A new two-step approach to the experimental phases within an outreach gene technology lab, derived from cognitive load theory, is presented. We compared our approach using a quasi-experimental design with the conventional one-step mode. The difference consisted of additional focused discussions combined with students writing down their ideas (step one) prior to starting any experimental procedure (step two). We monitored students' activities during the experimental phases by continuously videotaping 20 work groups within each approach ( N = 131). Subsequent classification of students' activities yielded 10 categories (with well-fitting intra- and inter-observer scores with respect to reliability). Based on the students' individual time budgets, we evaluated students' roles during experimentation from their prevalent activities (by independently using two cluster analysis methods). Independently of the approach, two common clusters emerged, which we labeled as `all-rounders' and as `passive students', and two clusters specific to each approach: `observers' as well as `high-experimenters' were identified only within the one-step approach whereas under the two-step conditions `managers' and `scribes' were identified. Potential changes in group-leadership style during experimentation are discussed, and conclusions for optimizing science teaching are drawn.

Scharfenberg, Franz-Josef; Bogner, Franz X.

2011-08-01

107

Activities of the Jet Propulsion Laboratory  

NASA Technical Reports Server (NTRS)

Work accomplished by the Jet Propulsion Laboratory (JPL) under contract to NASA in 1985 is described. The work took place in the areas of flight projects, space science, geodynamics, materials science, advanced technology, defense and civil programs, telecommunications systems, and institutional activities.

1986-01-01

108

Science Fun: Hands-On Science with Dr. Zed.  

ERIC Educational Resources Information Center

This book presents 65 simple, safe, and intriguing hands-on science activities. In doing these simple experiments, children can make a variety of discoveries that will surprise them. It includes many activities from discovering how people see color and what makes people's hair stand on end, to creating a tornado in a jar or a propeller-driven boat…

Penrose, Gordon

109

Hands-on Science. Why Do Mittens Work?  

ERIC Educational Resources Information Center

This article presents hands-on, experiential science activities that use mittens to teach elementary students about classification and insulation. The first involves children sorting mittens. The second has them find out for themselves why mittens keep their hands warm. Across-the-curriculum activities are also described. (SM)

Kepler, Lynne

1996-01-01

110

Hands-On Whole Science. Pass the Beetles, Please.  

ERIC Educational Resources Information Center

Several hands-on whole science activities help elementary students learn about animals' diets and how they affect other animals. One activity involves identifying animals as carnivores, herbivores, or omnivores. Another has students construct food chains. Two across-the-curriculum ideas involve naming carnivores and preparing imaginary menus for…

Kepler, Lynne

1992-01-01

111

Hands-On Homework for Introductory Science  

NSDL National Science Digital Library

The author and colleagues have designed an Exploration Center to supplement lecture-oriented teaching in large introductory physics courses. At the center, students perform hands-on homework problems derived from lecture demonstrations. The style of explo

Singh, Chandralekha

2002-10-01

112

Integrating Laboratory Activity into a Junior High School Classroom  

ERIC Educational Resources Information Center

This paper presents a wind power system laboratory activity and an outline for evaluating student performance in this activity. The work described here was to design and implement the laboratory to assist teachers in achieving the teaching objective of this activity. The laboratory teaching activities introduce energy sources, wind energy…

Shyr, Wen-Jye

2010-01-01

113

A Hands-On Approach to Maglev for Gifted Students.  

ERIC Educational Resources Information Center

This article discusses how Magnetic Levitation (Maglev) can be taught to gifted students in grades 4-9 using hands-on activities that align to the National Science Standards. Principles of magnetic levitation, advantages of magnetic levitation, construction of a Maglev project, testing and evaluation of vehicles, and presentation of the unit are…

Budd, Raymond T.

2003-01-01

114

Advanced Distance Education Technology and Hands-on Science.  

ERIC Educational Resources Information Center

Describes the general use of two-way video/two-way audio technology to link three remote sites and a studio. Evaluated the instructors' and participants' use of the 22 hours of broadcast material. Determined that hands-on science activities seem to lessen the feeling of distance between remote sites and the studio. (Author/MVL)

Boone, William J.

1996-01-01

115

Not-So-Messy Hands-On Science.  

ERIC Educational Resources Information Center

Presents four elementary hands-on science activities that highlight animal adaptation (how birds' beaks are adapted to suit their habitats), the water cycle (how nature cleans rainwater that seeps into the ground), aquatic ecosystems (changes over time in an aquatic habitat), and animal habitats (all living beings' need for food, water, shelter,…

Bryan, Denise; Denty, Amy

2002-01-01

116

Hands-On Experiences with Buoyant-Less Water  

ERIC Educational Resources Information Center

The phenomenon of weightlessness is known to students thanks to videos of amazing things astronauts do in spaceships orbiting the Earth. In this article we propose two hands-on activities which give students opportunities to infer by themselves the absence of buoyant force in a gravity accelerated system. The system is a free-falling or vertically…

Slisko, Josip; Planinsic, Gorazd

2010-01-01

117

Hands-On Optics in an Informal Setting: Science Camps  

NASA Astrophysics Data System (ADS)

To expose young children to optical phenomena that build scientific literacy, Hands-On Optics camps provide an ideal way to encourage interest in optics before career choices are developed. Here, we provide an outline of our pedagogical approach for the camps, specific optics activities, strategies for cooperative learning and what worked best in the camp setting.

Peruta, C.; Walker, C. E.; Sparks, R. T.; Pompea, S. M.; Dokter, E.

2008-06-01

118

Hands-On Current Electricity: A Professional Development Course  

ERIC Educational Resources Information Center

"Hands-on Current Electricity" gives K-8 teachers the opportunity to experience inquiry learning about current electricity by (1) experimenting with current electricity through a variety of activities, (2) discovering preconceived mental models of electricity used to understand their observations, (3) creating new mental models that have greater…

Gibbons, Patrick C.; McMahon, Ann P.; Wiegers, John F.

2003-01-01

119

Mobile Robotics Activities in DOE Laboratories  

SciTech Connect

This paper will briefly outline major activities in Department of Energy (DOE) Laboratories focused on mobile platforms, both Unmanned Ground Vehicles (UGV’s) as well as Unmanned Air Vehicles (UAV’s). The activities will be discussed in the context of the science and technology construct used by the DOE Technology Roadmap for Robotics and Intelligent Machines (RIM)1 published in 1998; namely, Perception, Reasoning, Action, and Integration. The activities to be discussed span from research and development to deployment in field operations. The activities support customers in other agencies. The discussion of "perception" will include hyperspectral sensors, complex patterns discrimination, multisensor fusion and advances in LADAR technologies, including real-world perception. "Reasoning" activities to be covered include cooperative controls, distributed systems, ad-hoc networks, platform-centric intelligence, and adaptable communications. The paper will discuss "action" activities such as advanced mobility and various air and ground platforms. In the RIM construct, "integration" includes the Human-Machine Integration. Accordingly the paper will discuss adjustable autonomy and the collaboration of operator(s) with distributed UGV’s and UAV’s. Integration also refers to the applications of these technologies into systems to perform operations such as perimeter surveillance, large-area monitoring and reconnaissance. Unique facilities and test beds for advanced mobile systems will be described. Given that this paper is an overview, rather than delve into specific detail in these activities, other more exhaustive references and sources will be cited extensively.

Ron Lujan; Jerry Harbour; John T. Feddema; Sharon Bailey; Jacob Barhen; David Reister

2005-03-01

120

The Adaptive Optics Summer School Laboratory Activities  

NASA Astrophysics Data System (ADS)

Adaptive Optics (AO) is a new and rapidly expanding field of instrumentation, yet astronomers, vision scientists, and general AO practitioners are largely unfamiliar with the root technologies crucial to AO systems. The AO Summer School (AOSS), sponsored by the Center for Adaptive Optics, is a week-long course for training graduate students and postdoctoral researchers in the underlying theory, design, and use of AO systems. AOSS participants include astronomers who expect to utilize AO data, vision scientists who will use AO instruments to conduct research, opticians and engineers who design AO systems, and users of high-bandwidth laser communication systems. In this article we describe new AOSS laboratory sessions implemented in 2006-2009 for nearly 250 students. The activity goals include boosting familiarity with AO technologies, reinforcing knowledge of optical alignment techniques and the design of optical systems, and encouraging inquiry into critical scientific questions in vision science using AO systems as a research tool. The activities are divided into three stations: Vision Science, Fourier Optics, and the AO Demonstrator. We briefly overview these activities, which are described fully in other articles in these conference proceedings (Putnam et al., Do et al., and Harrington et al., respectively). We devote attention to the unique challenges encountered in the design of these activities, including the marriage of inquiry-like investigation techniques with complex content and the need to tune depth to a graduate- and PhD-level audience. According to before-after surveys conducted in 2008, the vast majority of participants found that all activities were valuable to their careers, although direct experience with integrated, functional AO systems was particularly beneficial.

Ammons, S. M.; Severson, S.; Armstrong, J. D.; Crossfield, I.; Do, T.; Fitzgerald, M.; Harrington, D.; Hickenbotham, A.; Hunter, J.; Johnson, J.; Johnson, L.; Li, K.; Lu, J.; Maness, H.; Morzinski, K.; Norton, A.; Putnam, N.; Roorda, A.; Rossi, E.; Yelda, S.

2010-12-01

121

A Handle on Hands-On  

NSDL National Science Digital Library

One of the major obstacles teachers face when trying to implement inquiry-based science teaching is how to handle hands-on materials. This article addresses where to get supplies and how to pay for them, how to organize and store the materials, and how to distribute the materials efficiently during lessons.

Ellen Schiller

2004-07-01

122

Hands On Discovery Place of Birmingham.  

ERIC Educational Resources Information Center

The inquiry approach of Discovery Place of Birmingham, Inc., in Birmingham, Alabama, invites children of all ages to explore the excitement of science, technology, art, and humanities. The educational resource center provides interactive exhibits, hands-on materials, teacher workshops, and family programs. (JDD)

Chancellor, Mindi Long

1989-01-01

123

Interactive Fortran 77 A Hands on Approach  

E-print Network

Interactive Fortran 77 A Hands on Approach Second edition Ian D Chivers Jane Sleightholme © Ian D. Information about the Fortran 90 version is available at http://www.kcl.ac.uk/kis/support/cc/fortran/f90home of this book is to introduce the concepts and ideas involved in problem solving with Fortran 77 using

Shen, Yang

124

Hands-on science and student achievement  

NASA Astrophysics Data System (ADS)

From the late 1950s through today, hands-on science has been promoted as a method of science instruction. Currently, recent national science reform efforts seek to temper its role. However, no consensus has been reached on the relationship of hands-on science to student achievement though this topic has been researched since the turn of the 20th century using various methods. To improve upon the literature, this work addresses three major limitations of past research---the lack of data on performance assessments of student achievement, the need to control for factors affecting both hands-on science and test scores, and the potential for a differential relationship by student ability. This work focuses on three research questions: (1) whether hands-on science is positively related to student achievement as measured by standardized test scores using both multiple choice and performance tests, (2) whether this relationship is stronger when using performance tests, and (3) whether this relationship differs by student ability. We apply regression analysis to two data sources. The primary data set is the 1994 RAND Survey of 1400 8th grade students and their teachers in Southern California which includes multiple choice and performance test scores. A second data source is the nationally representative NELS:88 with a focus on the 8th grade student sample. The initial findings vary by source of report, student or teacher, on the level of hands-on science. When accounting for the quality of the reports, the results show an association between the level of handson science and student test scores for both multiple choice and performance tests. The results find little difference for this relationship by type of test. Nor do they show strong evidence for a differential relationship due to student ability. These findings support the promotion of hands-on science at the middle school/junior high level while raising a concern about current science reform attempts to reduce and redirect its use. They also provide little evidence to support performance test programs on the grounds that they better reflect what is learned though hands-on instruction. Caveats on the findings and further research needs are discussed.

Ruby, Allen Michael

125

Structural health monitoring activities at National Laboratories  

SciTech Connect

Sandia National Laboratories and Los Alamos National Laboratory have on-going programs to assess damage in structures and mechanical systems from changes in their dynamic characteristics. This paper provides a summary of how both institutes became involved with this technology, their experience in this field and the directions that their research in this area will be taking in the future.

Farrar, C.R.; Doebling, S.W. [Los Alamos National Lab., NM (United States); James, G.H.; Simmermacher, T. [Sandia National Labs., Albuquerque, NM (United States)

1997-09-01

126

Hands-On Equations 1 Lite  

NSDL National Science Digital Library

In this iOS app students use the Hands-On Equations method to balance equations and solve for one variable. This app includes three lessons, each with a short one to two minute video, two example problems, and ten exercises. At the first level students solve an equation that is already set up on the scale, in the second level students must set up the equation on the scale before solving, and in the third lesson students must take this one step forward and eliminate variables as they solve.

Borenson, Henry

2013-06-19

127

Hands-On Universe: Meaningful Astronomical Research in the Classroom  

NASA Astrophysics Data System (ADS)

Hands-On Universe (HOU) is an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology. Using the Internet, HOU participants around the world request observations from automated telescopes, download images from a large image archive, and analyze them with the aid of user-friendly image processing software. HOU has developed a comprehensive set of curriculum activities for high school students and is being used in hundreds of high school classes around the world. Currently under development are HOU activities for informal science centers, middle school and undergraduate courses.

Asbell-Clarke, J.; Barclay, T.; Deustua, S.; Gordon, S.; Marshall, A.; Pennypacker, C.; Refling, J.; Hoette, V.; Lohman, R.; Morin, T.; Pack, H.; Rodriguez, B.; Spuck, T.; Toler, D.

1996-12-01

128

SciTech Hands-On Museum: Experiment  

NSDL National Science Digital Library

The Experiment page of the Aurora, Illinois SciTech Hands-On Museum includes several quality science educational activities. The first is a lesson plan that lets kids explore what evaporation is and shows it taking place. The Excite an Atom activity includes an interactive model of a Hydrogen atom that allows students to choose various energy states to see how the atom reacts and then returns to the ground state and emits a photon. Additional features of the site include science fair project ideas and other helpful science links, making it a valuable resource especially for grade school science teachers.

129

Miniaturization and globalization of clinical laboratory activities.  

PubMed

Clinical laboratories provide an invaluable service to millions of people around the world in the form of quality diagnostic care. Within the clinical laboratory industry the impetus for change has come from technological development (miniaturization, nanotechnology, and their collective effect on point-of-care testing; POCT) and the increasingly global nature of laboratory services. Potential technological gains in POCT include: the development of bio-sensors, microarrays, genetics and proteomics testing, and enhanced web connectivity. In globalization, prospective opportunities lie in: medical tourism, the migration of healthcare workers, cross-border delivery of testing, and the establishment of accredited laboratories in previously unexplored markets. Accompanying these impressive opportunities are equally imposing challenges. Difficulty transitioning from research to clinical use, poor infrastructure in developing countries, cultural differences and national barriers to global trade are only a few examples. Dealing with the issues presented by globalization and the impact of developing technology on POCT, and on the clinical laboratory services industry in general, will be a daunting task. Despite such concerns, with appropriate countermeasures it will be possible to address the challenges posed. Future laboratory success will be largely dependent on one's ability to adapt in this perpetually shifting landscape. PMID:21175379

Melo, Murilo R; Clark, Samantha; Barrio, Daniel

2011-04-01

130

Hands-on lessons in ergonomics for youth  

SciTech Connect

Ergonomics risk factors apply to everybody. Numerous adults have experienced disabling injuries related to use of computers and other forms of technology. Now children are using technology even more than adults. Increasingly ergonomics risk factors are being recognized as present in the world of children. Outreach to schools and the surrounding community by employers may help protect the future work force. A growing body of researchers believe that children can benefit from the early introduction of ergonomics awareness and preventative measures. While individual representatives of the educational system may embrace the concept of introducing ergonomics into the classroom, a number of barriers can prevent implementation of integrated programs. Some of the barriers to introducing ergonomics in schools have been absence of a tie to educational standards, the existing demands on teaching hours, and the absence of easily executable lesson plans. Ergonomics is rarely included in teacher training and professional ergonomics expertise is needed for the development of a class-based program. As part of Strategic Vision plan for 2025, a National Laboratory identified community outreach and the future workforces as key areas for initiatives. A series of hands-on interactive modules have been developed by professional ergonomics specialists. They are being tested with elementary, middle and high school students. Where possible, the content has been tied to the educational standards in the State of California in the USA. Currently the modules include grip strength, effective breathing, optimal keyboard and mouse positions, optimizing chairs, posture and movement, backpack safety and safe lifting. Each module takes the students through a related activity or experience. An individual worksheet asks them questions about the experience and guides them to consider implications in their activities of daily living. A module on hearing is under development. The goal is to have a toolkit that teachers can use in classrooms with minimal training. The kit will come with lesson plans, including background material, key points, questions and answers, possible homework assignments and references. It will include instructions and worksheets for students as well as the materials needed for each module. A pre- and posttest will be administered to test the awareness and understanding of the principles introduced in through the modules. This interactive session will offer the opportunity to for attendees to participate in some of the modules that have been developed to provide experiential demonstration of ergonomics principles. Attendees will experience ergonomics in action and be able to evaluate the applicability of the process in their own area in the world of ergonomics. The session will consist of 20 minutes introduction, 40 minutes working with the toolkit, finally another 30 minutes for questions or discussion for a total time of 90 minutes.

Bennett, C; Alexandre, M; Jacobs, K

2005-09-29

131

Teachers' Perspectives on Online Virtual Labs vs. Hands-On Labs in High School Science  

NASA Astrophysics Data System (ADS)

This study of online science teachers' opinions addressed the use of virtual labs in online courses. A growing number of schools use virtual labs that must meet mandated laboratory standards to ensure they provide learning experiences comparable to hands-on labs, which are an integral part of science curricula. The purpose of this qualitative case study was to examine teachers' perceptions of the quality and effectiveness of high school virtual labs. The theoretical foundation was constructivism, as labs provide student-centered activities for problem solving, inquiry, and exploration of phenomena. The research questions focused on experienced teachers' perceptions of the quality of virtual vs. hands-on labs. Data were collected through survey questions derived from the lab objectives of The Next Generation Science Standards . Eighteen teachers rated the degree of importance of each objective and also rated how they felt virtual labs met these objectives; these ratings were reported using descriptive statistics. Responses to open-ended questions were few and served to illustrate the numerical results. Many teachers stated that virtual labs are valuable supplements but could not completely replace hands-on experiences. Studies on the quality and effectiveness of high school virtual labs are limited despite widespread use. Comprehensive studies will ensure that online students have equal access to quality labs. School districts need to define lab requirements, and colleges need to specify the lab experience they require. This study has potential to inspire positive social change by assisting science educators, including those in the local school district, in evaluating and selecting courseware designed to promote higher order thinking skills, real-world problem solving, and development of strong inquiry skills, thereby improving science instruction for all high school students.

Bohr, Teresa M.

132

Enhancing Active Learning in the Student Laboratory  

ERIC Educational Resources Information Center

We previously examined how three approaches to directing students in a laboratory setting impacted their ability to repair a faulty mental model in respiratory physiology (Modell, HI, Michael JA, Adamson T, Goldberg J, Horwitz BA, Bruce DS, Hudson ML, Whitescarver SA, and Williams S. Adv Physiol Educ 23: 82?90, 2000). This study addresses issues…

Modell, Harold I.; Michael, Joel A.; Adamson, Tom; Horwitz, Barbara

2004-01-01

133

Laboratory-Tutorial Activities for Teaching Probability  

ERIC Educational Resources Information Center

We report on the development of students' ideas of probability and probability density in a University of Maine laboratory-based general education physics course called "Intuitive Quantum Physics". Students in the course are generally math phobic with unfavorable expectations about the nature of physics and their ability to do it. We describe a…

Wittmann, Michael C.; Morgan, Jeffrey T.; Feeley, Roger E.

2006-01-01

134

Delivering hands-on technology education  

SciTech Connect

The Science Alliance serves Delaware and borders of neighboring states. A core group of volunteers and a small paid staff coordinate the technology education needs of K-12 students and their teachers, the time and talent donated by volunteers, and the financial support of local business, and government agencies. In five years we facilitated contact between hundreds of technical professionals and thousands of students. We will provide some details on the diverse elements which secured its success, illustrate typical programs offered, and recommend action directions for prospective groups. The Science Alliance`s success is evident from the national publicity it has received, and the large amount of funding it has secured, but most of all by hands-on experience provided by volunteers and science kits we bought and now routinely loan to teachers.

Nelson, R.; Booth, B. [DuPont Co., Wilmington, DE (United States)

1994-12-31

135

Hands-on experiences with buoyant-less water  

NASA Astrophysics Data System (ADS)

The phenomenon of weightlessness is known to students thanks to videos of amazing things astronauts do in spaceships orbiting the Earth. In this article we propose two hands-on activities which give students opportunities to infer by themselves the absence of buoyant force in a gravity accelerated system. The system is a free-falling or vertically tossed bottle filled with water with a small, inflated balloon attached to the bottom by a spring. Practical hints on how to make efficient demonstration experiments are added.

Sliško, Josip; Planinši?, Gorazd

2010-05-01

136

Hands-On Herpetology: Exploring Ecology and Conservation  

NSDL National Science Digital Library

Plentiful, diverse, and readily available, these animals--known in science as "herps"--are also perfect for teaching students about biology, ecology, and conservation, including problems affecting both amphibians and reptiles. This highly readable resource melds rigorous science content with science research. Its five sections cover the animals' biology and handling procedures (including safety tips), provide background information for teachers, offer twenty-one indoor/outdoor activities, and broach critical conservation issues. Hands-On Herpetology: Exploring Ecology and Conservation is ideal for middle and high school teachers, volunteer leaders in 4-H and other clubs, and nature center staff who want to mix serious issues with amazing science.

Krasny, Marianne E.; Schneider, Rebecca L.; Morreale, Stephen J.

2001-01-01

137

TOPS Laboratory Program Management Activities Wisconsin Traffic Operations and Safety (TOPS) Laboratory  

E-print Network

TOPS Laboratory Program Management Activities Wisconsin Traffic Operations and Safety (TOPS Coordination Special Projects (Truck Size and Weight Study, STOC System Manager, Infrastructure Health and Planning Program Management Computer Aided Dispatch Advanced Traffic Management System Interface (Inter

Sheridan, Jennifer

138

Hands-On and Computer Simulations.  

ERIC Educational Resources Information Center

Describes two laboratory exercises corresponding to studies of statics and dynamics to illustrate the concept that the combination of real and simulated laboratory tools, with some real data being recorded in computer-aided form, can result in a very sound understanding of physical principles. (JRH)

Hasson, Brian; Bug, Amy L. R.

1995-01-01

139

A Simple Laboratory Exercise Illustrating Active Transport in Yeast Cells.  

ERIC Educational Resources Information Center

Describes a simple laboratory activity illustrating the chemiosmotic principles of active transport in yeast cells. Demonstrates the energy coupling mechanism of active a-glucoside uptake by Saccaromyces cerevisiae cells with a colorimetric transport assay using very simple equipment. (Contains 22 references.) (Author/YDS)

Stambuk, Boris U.

2000-01-01

140

Chemical Science and Technology Laboratory Page 1 Technical Activities Report  

E-print Network

Chemical Science and Technology Laboratory Page 1 Technical Activities Report Physical & Chemical Properties Division TABLE OF CONTENTS I. PHYSICAL & CHEMICAL PROPERTIES DIVISION (838.................................................................................................9 1. The NIST WebBook: NIST Chemical Reference Data for Industry

Magee, Joseph W.

141

Engaging First-Year Undergraduates in Hands-On Research Experiences: The Upper Green River Barcode of Life Project  

NSDL National Science Digital Library

To improve retention and engagement, first-year college science majors enrolled in University Experience orientation courses participated in a hands-on laboratory research experience: a DNA barcoding project to facilitate species identification. Students

Douglas M. McElroy

2010-01-01

142

Positive Developments in Hands-On Universe  

NASA Astrophysics Data System (ADS)

Over the past decade, with generous support from Elementary, Secondary and Informal Science Education program of the NSF, Hands-On Universe (HOU), has developed and continues to develop small telescopes, user friendly image-processing software, XML-tools for image request within a telescope network, curricula for secondary schools,, teacher training materials and workshops,. HOU curricula should be published within a year, and we are developing HOU Centers across America and the World, to be on-going and self-sustained sites for teachers to learn how to teach and undertake astronomy in their classrooms. HOU is currently developing museum kiosks for image acquisition and processing in science centers, using an on site robotic telescope, and 0.35 meter telescopes around the world in real time. Over 700 teachers around the United States and another 700 teachers from around the world have taken HOU workshops, and about 2/3 use it in their classrooms. A particularly important development is the HOU collaboration with Johns Hopkins University as part of the usage of National Virtual Observatory and SDSS images and data for education. Such data systems are beginning to result in a flood of data, which will soon overwhelm students and teachers, unless we prepare for this onslaught carefully. HOU has met resonance with other astronomers and educators around the world. Global HOU is thriving, and next years Global HOU meeting will be held at NAOC in Beijing, China. We seek astronomers at this meeting who would be happy to help coach a few students on a paper, using our Collaboratory system!

Pennypacker, C. R.; Hands-On Universe; Yerkes Observatory; START Collaboration Team

2004-12-01

143

Using the Laboratory to Enhance Student Learning  

NSDL National Science Digital Library

Typical hands-on, cookbook laboratory experiences do an extremely poor job of making apparent and playing off students' prior ideas, engendering deep reflection, and promoting understanding of complex content. This chapter addresses how to transform traditional laboratory activities into experiences that are more congruent with how people learn, the National Science Education Standards, and the nature of science.

Clough, Michael P.

2002-01-01

144

An Inquiry Laboratory Activity for Biology  

NSDL National Science Digital Library

The "cookbook " style approach to studying biochemical reactions mediated by enzymes is changed to an inquiry approach. Cooperative teams are each given two questions about the types of living materials that contain the enzymes that break down hydrogen peroxide, and under what conditions the enzyme works best. They write hypotheses and design and conduct experiments to test these hypotheses. The activity provides students the opportunity to engage in meaningful scientific inquiry because they must truly understand the problem in order to attempt to solve it, to construct meaning in performing experiments, to practice observational skills, and to communicate in writing and in reporting orally to the class on their group results.

Nancy Contolini (Brookfield High School REV)

1994-07-30

145

Hands-On Science, 680 Hands at a Time: Shrinking the Large Lecture with a Collapsing Can Experiment.  

ERIC Educational Resources Information Center

Explains how hands-on science activities can be done in a class designed as a lecture setting. Uses the collapsing can activity to demonstrate the birth of a black hole. Evaluates student responses to the hands-on approach. (YDS)

Shipman, Harry L.

2001-01-01

146

THE NATIONAL EXPOSURE RESEARCH LABORATORY'S COMPREHENSIVE HUMAN ACTIVITY DATABASE  

EPA Science Inventory

EPA's National Exposure Research Laboratory (NERL) has combined data from nine U.S. studies related to human activities into one comprehensive data system that can be accessed via the world-wide web. The data system is called CHAD-Consolidated Human Activity Database-and it is ...

147

Cognitive Influences of Students' Alternative Conceptions within a Hands-On Gene Technology Module  

ERIC Educational Resources Information Center

In a German out-of-school laboratory, 293 medium-achieving 10th-grade students participated in a lesson unit about gene technology. They were divided into two groups (I-1, I-2), both of which followed the same hands-on lesson procedure. Students within I-2 were additionally confronted with alternative conceptions to central issues of the specific…

Franke, Gaitano; Bogner, Franz X.

2011-01-01

148

MEM 351 Dynamic Systems Lab 1 Hands-on Lab 1  

E-print Network

MEM 351 Dynamic Systems Lab 1 Hands-on Lab 1: LabVIEW ­ NI-DAQ Basics 1 This lab reviews LabVIEW feedback. Specific LabVIEW concepts include: creating a VI (front panel and block diagram), case structures (reference: Bishop p. 66) LabVIEW stands for Laboratory Virtual Instrument Engineering Workbench. In LabVIEW

Oh, Paul

149

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) Code Reference Manual  

Microsoft Academic Search

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer. SAPHIRE is funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory (INL). The INL's primary role in this project is that of software developer. However, the INL

C. L. Smith; K. J. Kvarfordt; S. T. Wood

2008-01-01

150

Systems Analysis Programs for Hands-on Intergrated Reliability Evaluations (SAPHIRE) Summary Manual  

Microsoft Academic Search

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer (PC) running the Microsoft Windows operating system. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory (INL). INL's primary role in this project is

C. L. Smith

2008-01-01

151

Ocean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands-on  

E-print Network

Ocean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands-on opportunities for research in ocean renewable energy, remotely operated vehicles, ocean mapping, ocean acoustics, and coastal processes. The Jere A. Chase Ocean Engineering Laboratory is equipped with state

Pringle, James "Jamie"

152

Calculator-Controlled Robots: Hands-On Mathematics and Science Discovery  

ERIC Educational Resources Information Center

The Calculator Controlled Robots activities are designed to engage students in hands-on inquiry-based missions. These activities address National science and technology standards, as well as specifically focusing on mathematics content and process standards. There are ten missions and three exploration extensions that provide activities for up to…

Tuchscherer, Tyson

2010-01-01

153

Hands On Math Using Colored Rods.  

ERIC Educational Resources Information Center

Students enjoy learning by doing and by manipulating objects. This paper describes classroom activities using rods with various lengths and different colors. The activities included are: (1) preparation of rods; (2) elementary addition and subtraction; (3) fractions; (4) concept of greater than, less than, and equals; (5) simple division and…

Barry, Dana Malloy

154

Hands-on optics: an informal science education initiative  

NASA Astrophysics Data System (ADS)

The project is collaboration between two scientific societies, the Optical Society of America (OSA) and SPIE - The International Society for Optical Engineering and the National Optical Astronomy Observatory (NOAO). The program is designed to bring science education enrichment to thousands of underrepresented middle school students in more than ten states, including female and minority students, who typically have not been the beneficiaries of science and engineering resources and investments. HOO provides each teacher with up to six activity modules, each containing enough materials for up to 30 students to participate in 6-8 hours of hands-on optics-related activities. Sample activities, developed by education specialists at NOAO, include building kaleidoscopes and telescopes, communicating with a beam of light, and a hit-the-target laser beam challenge. Teachers engage in two days of training and, where possible, are partnered with a local optics professional (drawn from the local rosters of SPIE and OSA members) who volunteers to spend time with the teacher and students as they explore the module activities. Through these activities, students gain experience and understanding of optics principles, as well as learning the basics of inquiry, critical thinking, and problem solving skills involving optics, and how optics interfaces with other disciplines. While the modules were designed for use in informal after- school or weekend sessions, the number of venues has expanded to large and small science centers, Boys and Girls Clubs, Girl Scouts, summer camps, family workshops, and use in the classroom.

Johnson, Anthony M.; Pompea, Stephen M.; Arthurs, Eugene G.; Walker, Constance E.; Sparks, Robert T.

2007-09-01

155

Laboratory Directed Research and Development Program Activities for FY 2008.  

SciTech Connect

Brookhaven National Laboratory (BNL) is a multidisciplinary laboratory that maintains a primary mission focus the physical sciences, energy sciences, and life sciences, with additional expertise in environmental sciences, energy technologies, and national security. It is managed by Brookhaven Science Associates, LLC, (BSA) under contract with the U. S. Department of Energy (DOE). BNL's Fiscal year 2008 budget was $531.6 million. There are about 2,800 employees, and another 4,300 guest scientists and students who come each year to use the Laboratory's facilities and work with the staff. The BNL Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) annually in March, as required by DOE Order 413.2B, 'Laboratory Directed Research and Development,' April 19, 2006, and the Roles, Responsibilities, and Guidelines for Laboratory Directed Research and Developlnent at the Department of Energy/National Nuclear Security Administration Laboratories dated June 13, 2006. Accordingly, this is our Annual Report in which we describe the Purpose, Approach, Technical Progress and Results, and Specific Accomplishments of all LDRD projects that received funding during Fiscal Year 2008. BNL expended $12 million during Fiscal Year 2008 in support of 69 projects. The program has two categories, the annual Open Call LDRDs and Strategic LDRDs, which combine to meet the overall objectives of the LDRD Program. Proposals are solicited annually for review and approval concurrent with the next fiscal year, October 1. For the open call for proposals, an LDRD Selection Committee, comprised of the Associate Laboratory Directors (ALDs) for the Scientific Directorates, an equal number of scientists recommended by the Brookhaven Council, plus the Assistant Laboratory Director for Policy and Strategic Planning, review the proposals submitted in response to the solicitation. The Open Can LDRD category emphasizes innovative research concepts with limited management filtering to encourage the creativity of individual researchers. The competition is open to all BNL staff in programmatic, scientific, engineering, and technical support areas. Researchers submit their project proposals to the Assistant Laboratory Director for Policy and Strategic Planning. A portion of the LDRD budget is held for the Strategic LDRD (S-LDRD) category. Projects in this category focus on innovative R&D activities that support the strategic agenda of the Laboratory. The Laboratory Director entertains requests or articulates the need for S-LDRD funds at any time. Strategic LDRD Proposals also undergo rigorous peer review; the approach to review is tailored to the size and scope of the proposal. These Projects are driven by special opportunities, including: (1) Research project(s) in support of Laboratory strategic initiatives as defined and articulated by the Director; (2) Research project(s) in support of a Laboratory strategic hire; (3) Evolution of Program Development activities into research and development activities; and (4) ALD proposal(s) to the Director to support unique research opportunities. The goals and objectives of BNL's LDRD Program can be inferred fronl the Program's stated purposes. These are to (1) encourage and support the development of new ideas and technology, (2) promote the early exploration and exploitation of creative and innovative concepts, and (3) develop new 'fundable' R&D projects and programs. The emphasis is clearly articulated by BNL to be on supporting exploratory research 'which could lead to new programs, projects, and directions' for the Laboratory. We explicitly indicate that research conducted under the LDRD Program should be highly innovative, and an element of high risk as to success is acceptable. To be one of the premier DOE National Laboratories, BNL must continuously foster groundbreaking scientific research. At Brookhaven National Laboratory one such method is through its LDRD Program. This discretionary research and d

Looney,J.P.; Fox, K.

2009-04-01

156

PILOTing Undergraduate Students to Hands-On Teaching and Research Skills†  

PubMed Central

Undergraduate research can make a positive impact on science education. Unfortunately, the one student-one mentor paradigm of undergraduate research generates a wide range of variability in the student’s experience and further limits its availability to a select few students. In contrast, a single faculty member can offer multiple undergraduate teaching positions that provide a consistent experience for the student. We attempted to combine the undergraduate research and teaching experiences in an internship practicum called Peer Instruction and Laboratory Occupational Training (PILOT). Students enrolled in PILOT served as teaching assistants for the upper division Quantitative Biological Methods (QBM) laboratory course. In addition, PILOT students worked on an independent lab project that provided them with hands-on training and supported the QBM course. The development of presentation and teaching skills was also emphasized in PILOT. These activities were designed to improve student communication skills, lab skills, and knowledge of molecular biology content. Here, we describe the PILOT curriculum and report the results of an anonymous assessment survey administered to 75 students who had completed PILOT in the previous five semesters. Our data indicate that PILOT provides an effective format to expand undergraduate opportunities for research and teaching experiences. PMID:23858352

Borgon, Robert A.; Verity, Nicole; Teter, Ken

2013-01-01

157

Teacher's Resource Guide on Acidic Precipitation with Laboratory Activities.  

ERIC Educational Resources Information Center

The purpose of this teacher's resource guide is to help science teachers incorporate the topic of acidic precipitation into their curricula. A survey of recent junior high school science textbooks found a maximum of one paragraph devoted to the subject; in addition, none of these books had any related laboratory activities. It was on the basis of…

Barrow, Lloyd H.

158

Modeling Radial Holoblastic Cleavage: A Laboratory Activity for Developmental Biology.  

ERIC Educational Resources Information Center

Introduces a laboratory activity designed for an undergraduate developmental biology course. Uses Play-Doh (plastic modeling clay) to build a multicellular embryo in order to provide a 3-D demonstration of cleavage. Includes notes for the instructor and student directions. (YDS)

Ellis, Linda K.

2000-01-01

159

WORK PERMIT FOR MAINTENANCE / CONSTRUCTION ACTIVITIES IN LABORATORIES  

E-print Network

WORK PERMIT FOR MAINTENANCE / CONSTRUCTION ACTIVITIES IN LABORATORIES This section to be completed by Facilities Operations to perform work in the following Authorized Work Zone Building: Dept: Room No: Work Start Date: Work Finish Date: Project Title: FacilityFocus No. Specific work

Collins, Gary S.

160

Make Science Matter. Hands on Science.  

ERIC Educational Resources Information Center

Presents class activities to help elementary students learn about changes in the state of matter by making ice cream. In addition to making observations on the changes of state, students can practice measuring and identifying the properties (e.g., color, size, and shape). (SM)

Kepler, Lynne

1992-01-01

161

S'COOL Lesson: Cloud in a Bottle (Hands-on Version)  

NSDL National Science Digital Library

In this lesson plan, students participate in a hands-on activity using a plastic bottle and other simple ingredients to learn the three factors required for cloud formation. Detailed Procedure and materials, vocabulary linked to an on-line glossary, and teacher notes are provided. This activity is related to the NASA CERES Students Cloud Observations Online (S'COOL) project.

162

Hands-On Science: Is It an Acid or a Base? These Colorful Tests Tell All!  

ERIC Educational Resources Information Center

Two hands-on science activities for K-6 students teach them how to determine if something is an acid or a base. The activities require acid/base indicator juice, testing strips, and a base solution. A recipe for making them in the classroom using red cabbage and baking soda is provided. (SM)

VanCleave, Janice

1998-01-01

163

A Low-Cost, Hands-on Module to Characterize Antimicrobial Compounds Using an Interdisciplinary, Biophysical Approach  

PubMed Central

We have developed a hands-on experimental module that combines biology experiments with a physics-based analytical model in order to characterize antimicrobial compounds. To understand antibiotic resistance, participants perform a disc diffusion assay to test the antimicrobial activity of different compounds and then apply a diffusion-based analytical model to gain insights into the behavior of the active antimicrobial component. In our experience, this module was robust, reproducible, and cost-effective, suggesting that it could be implemented in diverse settings such as undergraduate research, STEM (science, technology, engineering, and math) camps, school programs, and laboratory training workshops. By providing valuable interdisciplinary research experience in science outreach and education initiatives, this module addresses the paucity of structured training or education programs that integrate diverse scientific fields. Its low-cost requirements make it especially suitable for use in resource-limited settings. PMID:25602254

Kaushik, Karishma S.; Kessel, Ashley; Ratnayeke, Nalin; Gordon, Vernita D.

2015-01-01

164

A Low-Cost, Hands-on Module to Characterize Antimicrobial Compounds Using an Interdisciplinary, Biophysical Approach.  

PubMed

We have developed a hands-on experimental module that combines biology experiments with a physics-based analytical model in order to characterize antimicrobial compounds. To understand antibiotic resistance, participants perform a disc diffusion assay to test the antimicrobial activity of different compounds and then apply a diffusion-based analytical model to gain insights into the behavior of the active antimicrobial component. In our experience, this module was robust, reproducible, and cost-effective, suggesting that it could be implemented in diverse settings such as undergraduate research, STEM (science, technology, engineering, and math) camps, school programs, and laboratory training workshops. By providing valuable interdisciplinary research experience in science outreach and education initiatives, this module addresses the paucity of structured training or education programs that integrate diverse scientific fields. Its low-cost requirements make it especially suitable for use in resource-limited settings. PMID:25602254

Kaushik, Karishma S; Kessel, Ashley; Ratnayeke, Nalin; Gordon, Vernita D

2015-01-01

165

Developing hands-on ergonomics lessons for youth  

SciTech Connect

By the time students are ready to enter the workforce they have been exposed to up to 20 years of ergonomics risk factors. As technology evolves, it provides more opportunities for intensive repetitive motion and with computers, cell phones, personal digital assistants (PDAs), and electronic games. The average student engages in fewer active physical activities, sit stationary in mismatched furniture in schools for hours and carry heavy backpacks. While long-term effects remain to be identified, increasingly ergonomists and others concerned with musculoskeletal health and wellness, see a need for early ergonomics education. This interactive session provides a hands-on approach to introducing ergonomics to students. Although different approaches may effectively introduce ergonomics at even early stages of development, this program was designed for youth at the middle to high school age. Attendees will participate in four activities designed to introduce ergonomics at an experiential level. The modules focus on grip strength, effective breathing, optimizing your chair, and backpack safety. The workshop will include presentation and worksheets designed for use by teachers with minimal ergonomics training. Feedback from the participants will be sought for further refining the usability and safety of the training package.

Bennett, C; Alexandre, M; Jacobs, K

2006-02-22

166

Laboratory activities involving transmissible spongiform encephalopathy causing agents  

PubMed Central

Since the appearance in 1986 of epidemic of bovine spongiform encephalopathy (BSE), a new form of neurological disease in cattle which also affected human beings, many diagnostic and research activities have been performed to develop detection and therapeutic tools. A lot of progress was made in better identifying, understanding and controlling the spread of the disease by appropriate monitoring and control programs in European countries. This paper reviews the recent knowledge on pathogenesis, transmission and persistence outside the host of prion, the causative agent of transmissible spongiform encephalopathies (TSE) in mammals with a particular focus on risk (re)assessment and management of biosafety measures to be implemented in diagnostic and research laboratories in Belgium. Also, in response to the need of an increasing number of European diagnostic laboratories stopping TSE diagnosis due to a decreasing number of TSE cases reported in the last years, decontamination procedures and a protocol for decommissioning TSE diagnostic laboratories is proposed. PMID:24055928

Leunda, Amaya; Van Vaerenbergh, Bernadette; Baldo, Aline; Roels, Stefan; Herman, Philippe

2013-01-01

167

Oak Ridge National Laboratory Distributed Active Archive Center  

NSDL National Science Digital Library

The Oak Ridge National Laboratory Distributed Active Archive Center for Biogeochemical Dynamics "is a source for biogeochemical and ecological data useful for studying environmental processes. These data have been collected on the ground, from aircraft, or by satellite or have been generated by computer models. The extent of data ranges from site-specific to global, and duration's range from days to years." Information can be searched by a wide range of criteria that include key word, timeline, subject, map, and attribute.

1998-01-01

168

Hands-On Fractals and the Unexpected in Mathematics  

ERIC Educational Resources Information Center

This article describes a hands-on project in which unusual fractal images are produced using only a photocopy machine and office supplies. The resulting images are an example of the contraction mapping principle.

Gluchoff, Alan

2006-01-01

169

Close view of statue showing her right hand on the ...  

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

Close view of statue showing her right hand on the hilt of a sword - U.S. Capitol, Statue of Freedom, Intersection of North, South, & East Capitol Streets & Capitol Mall, Washington, District of Columbia, DC

170

The Hands-On and Far-Out Physics Team: It Starts Out Walking.  

ERIC Educational Resources Information Center

The Hands-On and Far-Out Physics project is part of the Center for Technology, Environment, and Communication (C-TEC), a project-based learning community at Piner High School in Santa Rosa (California). This article introduces the project team, discusses member activities, presents a walking-speed experiment, and describes a Mars Colony course…

Albrecht, Bob; Firedrake, George

1998-01-01

171

Illustrating Probability in Genetics with Hands-On Learning: Making the Math Real  

ERIC Educational Resources Information Center

Probability is an essential tool for understanding heredity and modern genetics, yet many students have difficulty with this topic due to the abstract and quantitative nature of the subject. To facilitate student learning of probability in genetics, we have developed a set of hands-on, cooperative activities that allow students to determine…

Pierce, Benjamin A.; Honeycutt, Brenda B.

2007-01-01

172

Tried and True: Traffic control tips for hands-on labs  

NSDL National Science Digital Library

The following are some tried and true methods of avoiding materials management and traffic problems associated with hands-on activities. While each class has its own personality and each teacher has his or her own style, these tips can be useful and practical in a variety of settings.

Tricia Hill

2004-09-01

173

Build a Band Hands-on Challenge: Investigate Sound with PBS's "Design Squad Nation"[TM  

ERIC Educational Resources Information Center

This article describes "Build a Band" hands-on activity from "Design Squad Nation," which allows kids to use simple materials to build a four-stringed instrument, then tune it and play a song. Kids explore frequency, pitch, and sound energy while following the steps of the engineering design process. By weaving "Design Squad Nation" episodes,…

Feinberg, Lauren

2010-01-01

174

A Hands-On Approach to Teaching Protein Translation & Translocation into the ER  

ERIC Educational Resources Information Center

The process of protein translation and translocation into the endoplasmic reticulum (ER) can often be challenging for introductory college biology students to visualize. To help them understand how proteins become oriented in the ER membrane, I developed a hands-on activity in which students use Play-Doh to simulate the process of protein…

LaBonte, Michelle L.

2013-01-01

175

Connecting Students to Sustainability through Hands-on Learning in the High School Science Classroom  

NSDL National Science Digital Library

This paper from Joe Orzali examines the topic of introducing high school students to sustainability concepts through hands-on learning activities. The paper looks into the importance of teaching student sustainability, and includes a background of typical high school science curriculum and how it could be improved. Methods for incorporating sustainability into high school science classes are then explored.

Orzali, Joe

2012-04-16

176

Building Communities Through Role Models, Mentors, and Hands-on-Science.  

ERIC Educational Resources Information Center

Describes afterschool science program, implemented by a group of women engineers, to provide 18 African American middle-school female students with hands-on science activities related to the manufacture and design of automobiles. Women engineers served as mentors and role models. Program had positive influence on students' attitudes towards math,…

Ferreira, Maria

2001-01-01

177

Paper Table Hands-on Challenge: Explore Structures with PBS's "Design Squad"[TM  

ERIC Educational Resources Information Center

Build a table that's sturdy enough to hold a heavy weight! The catch? Students can only use eight sheets of newspaper, one piece of cardboard, and masking tape. This article describes "Paper Table," a hands-on activity from "Design Squad," in which kids investigate structures while following the steps of the engineering design process. Teachers…

Feinberg, Lauren

2010-01-01

178

LABORATORY DIRECTED RESEARCH AND DEVELOPMENT PROGRAM ACTIVITIES FOR FY2002.  

SciTech Connect

Brookhaven National (BNL) Laboratory is a multidisciplinary laboratory that carries out basic and applied research in the physical, biomedical, and environmental sciences, and in selected energy technologies. It is managed by Brookhaven Science Associates, LLC, under contract with the U. S. Department of Energy. BNL's total annual budget has averaged about $450 million. There are about 3,000 employees, and another 4,500 guest scientists and students who come each year to use the Laboratory's facilities and work with the staff. The BNL Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) annually in March, as required by DOE Order 4 1 3.2A, ''Laboratory Directed Research and Development,'' January 8, 2001, and the LDRD Annual Report guidance, updated February 12, 1999. The LDRD Program obtains its funds through the Laboratory overhead pool and operates under the authority of DOE Order 413.2A. The goals and objectives of BNL's LDRD Program can be inferred from the Program's stated purposes. These are to (1) encourage and support the development of new ideas and technology, (2) promote the early exploration and exploitation of creative and innovative concepts, and (3) develop new ''fundable'' R&D projects and programs. The emphasis is clearly articulated by BNL to be on supporting exploratory research ''which could lead to new programs, projects, and directions'' for the Laboratory. As one of the premier scientific laboratories of the DOE, BNL must continuously foster groundbreaking scientific research. At Brookhaven National Laboratory one such method is through its LDRD Program. This discretionary research and development tool is critical in maintaining the scientific excellence and long-term vitality of the Laboratory. Additionally, it is a means to stimulate the scientific community and foster new science and technology ideas, which becomes a major factor in achieving and maintaining staff excellence and a means to address national needs within the overall mission of the DOE and BNL. The LDRD Annual Report contains summaries of all research activities funded during Fiscal Year 2002. The Project Summaries with their accomplishments described in this report reflect the above. Aside from leading to new fundable or promising programs and producing especially noteworthy research, the LDRD activities have resulted in numerous publications in various professional and scientific journals and presentations at meetings and forums. All Fy 2002 projects are listed and tabulated in the Project Funding Table. Also included in this Annual Report in Appendix A is a summary of the proposed projects for FY 2003. The BNL LDRD budget authority by DOE in FY 2002 was $7 million. The actual allocation totaled $6.7 million. The following sections in this report contain the management processes, peer review, and the portfolio's relatedness to BNL's mission, initiatives and strategic plans. Also included is a metric of success indicators.

FOX,K.J.

2002-12-31

179

A History of Classified Activities at Oak Ridge National Laboratory  

SciTech Connect

The facilities that became Oak Ridge National Laboratory (ORNL) were created in 1943 during the United States' super-secret World War II project to construct an atomic bomb (the Manhattan Project). During World War II and for several years thereafter, essentially all ORNL activities were classified. Now, in 2000, essentially all ORNL activities are unclassified. The major purpose of this report is to provide a brief history of ORNL's major classified activities from 1943 until the present (September 2000). This report is expected to be useful to the ORNL Classification Officer and to ORNL's Authorized Derivative Classifiers and Authorized Derivative Declassifiers in their classification review of ORNL documents, especially those documents that date from the 1940s and 1950s.

Quist, A.S.

2001-01-30

180

Hands-On Science and Literacy Activities about Solar Energy  

NSDL National Science Digital Library

This article features science lesson plans to teach elementary students about the sun's energy, the relationship between light and heat, albedo, and the absorption of different surfaces. National standards and literacy integrations are provided for each lesson.

Fries-Gaither, Jessica

181

Explorations in Algebra: Hands-On Lab Activities.  

ERIC Educational Resources Information Center

This book is a compatible instructional component to any algebra textbook and was developed by University of Hawaii under the Dwight D. Eisenhower Mathematics and Science Education Improvement Act. The tasks align with the content and instructional approach used in daily classes that emphasize standards-based teaching and learning. The tasks…

Dougherty, Barbara J.; Matsumoto, Annette N.; Zenigami, Fay

182

Active control rotor model testing at Princeton's Rotorcraft Dynamics Laboratory  

NASA Technical Reports Server (NTRS)

A description of the model helicopter rotor tests currently in progress at Princeton's Rotorcraft Dynamics Laboratory is presented. The tests are designed to provide data for rotor dynamic modeling for use with active control system design. The model rotor to be used incoporates the capability for Individual Blade Control (IBC) or Higher Harmonic Control through the use of a standard swashplate on a three bladed hub. Sample results from the first series of tests are presented, along with the methodology used for state and parameter identification. Finally, pending experiments and possible research directions using this model and test facility are outlined.

Mckillip, Robert M., Jr.

1988-01-01

183

Increasing Awareness about Antibiotic Use and Resistance: A Hands-On Project for High School Students  

PubMed Central

Background Health-promoting education is essential to foster an informed society able to make decisions about socio-scientific issues based on scientifically sustained criteria. Antibiotic resistance is currently a major public health issue. Considering that irrational antibiotic use has been associated with the development and widespread of antibiotic resistant bacteria, educational interventions to promote prudent antibiotic consumption are required. Methodology/Principal Findings This study focuses on the outcomes of an interventional program implemented at the University of Porto, Portugal, to promote awareness about antibiotic resistance at high school levels (15–17 year old). The project Microbiology recipes: antibiotics à la carte articulates a set of wet and dry lab activities designed to promote the participants’ understanding of concepts and processes underlying antibiotics’ production and activity, such as the notion of mechanisms of action of antibiotics. Following a mix-method approach based on a pre?/post design, the effectiveness of this project was assessed by gathering data from surveys, direct observation and analysis of artifacts of 42 high school students (aged 15 and 16 years). The results indicate that the participants developed a more comprehensive picture of antibiotic resistance. The project was shown to promote more sophisticated conceptualizations of bacteria and antibiotics, increased awareness about the perils of antibiotic resistance, and enhanced consciousness towards measures that can be undertaken to mitigate the problem. The participants regarded their experiences as enjoyable and useful, and believed that the project contributed to improve their understanding and raise their interest about the issues discussed. Furthermore, there were also improvements in their procedural skills concerning the laboratory techniques performed. Conclusions/Significance This study evidences the possibility of increasing high school students’ awareness about the consequences of antibiotic resistance and the importance of judicious antibiotic use. The findings inform about the educational benefits of incorporating hands-on activities in science education programs. PMID:22984544

Fonseca, Maria João; Santos, Catarina L.; Costa, Patrício; Lencastre, Leonor; Tavares, Fernando

2012-01-01

184

Teaching genetics using hands-on models, problem solving, and inquiry-based methods  

NASA Astrophysics Data System (ADS)

Teaching genetics can be challenging because of the difficulty of the content and misconceptions students might hold. This thesis focused on using hands-on model activities, problem solving, and inquiry-based teaching/learning methods in order to increase student understanding in an introductory biology class in the area of genetics. Various activities using these three methods were implemented into the classes to address any misconceptions and increase student learning of the difficult concepts. The activities that were implemented were shown to be successful based on pre-post assessment score comparison. The students were assessed on the subjects of inheritance patterns, meiosis, and protein synthesis and demonstrated growth in all of the areas. It was found that hands-on models, problem solving, and inquiry-based activities were more successful in learning concepts in genetics and the students were more engaged than tradition styles of lecture.

Hoppe, Stephanie Ann

185

Molecular Biology for the Environment: an EC-US hands-on Course in Environmental Biotechnology  

SciTech Connect

One of the central goals of this activity is to bring together young scientists (at the late Ph.D. or early postdoctoral stages of their careers) in a forum that should result in future collaborations. The course is designed to give scientists hands-on experience in modern, up-to-date biotechnological methods at the interface between molecular biology and environmental biotechnology for the analysis of microorganisms and their activities with regard to the remediation of pollutants in the environment.

Victor de Lorenzo; Juan Luis Ramos; Jerome Kukor; Gerben J. Zylstra

2004-02-15

186

Hands-on Space Exploration through High Altitude Ballooning  

NASA Astrophysics Data System (ADS)

The Adler Planetarium's "Far Horizons" high-altitude ballooning effort serves as the focus for a diverse set of educational activities, including middle school summer camps, a high school summer program (the Astro-Science Workshop), school-year internships for high school students, summer internships for undergraduates, a NSF-funded graduate fellowship, and a thriving public volunteer program. The relatively low costs of both the reusable hardware (less than $1000) and expendable supplies (around $150 per launch) allow us to mount frequent missions throughout the year - and make such a program ideal for replication at institutions of any size. The rapid development schedule for each individual mission permits the cradle-to-grave involvement of short-term participants, making it easy to draw in a wide audience. Students are involved literally in a hands-on manner in all aspects of the construction, launch, tracking, and recovery of simple experimental payloads, which typically include sensors for temperature, pressure, light intensity, and radiation. Stunning imagery provided by onboard cameras can attract significant media interest, which can bring outreach efforts to a very broad audience. Future plans include the design and construction of CubeSats - decimeter-sized picosatellites carried to orbit as secondary payloads. Our first satellite will be a relatively simple Earth-imager, built from commercial, off-the-shelf components. As in the ballooning program, students and volunteers will be involved in all stages of this effort. Once operational, imagery and other data from the satellite will be incorporated into a museum exhibit that will allow visitors to submit target requests. This material is based in part upon work supported by the National Science Foundation under Grant No. 0525995.

Hammergren, Mark; Gyuk, G.

2010-01-01

187

Maintaining and Expanding the Hands-On Optics Program  

NASA Astrophysics Data System (ADS)

Hands-On Optics (HOO) was funded by the National Science Foundation Informal Science Education program to bring optics education to traditionally underserved middle school students. We developed a series of six optics modules each covering a different topic in optics. During the four-year grant, we brought the program to the Mathematics, Science and Engineering Achievement (MESA) programs in seven states as well as 8 major science centers. We continue to support our established sites as well as expand our program. One of our expansion efforts involves continuing our partnership with the International Society for Optical Engineering (SPIE). We have been working closely with SPIE to present workshops for student chapter leaders at SPIE meetings. The student chapter leaders use HOO materials in their outreach activities. SPIE has teamed with us to bring HOO to Europe. We have received a grant from the Science Foundation of Arizona to expand HOO in Arizona. This program builds on our successful programs at the South Tucson Boys and Girls Club as well as the Sells Boys and Girls Club by expanding HOO to other sites around the state with an emphasis on rural locations such as Bisbee, Safford, Prescott Valley and the Tohon O'odham Nation. We have been working with a variety of Boys and Girls Clubs around the state. Several programs are underway and we hope to add more sites in the coming year. We continue to host local events at Kitt Peak National Observatory as well as special events for the community and students in the Tucson area. Our events include science nights at local schools, optics festivals and competitions, career days and teacher fairs. We will describe the current state of the program as well as lessons learned as we expand the program in a variety of settings.

Pompea, Stephen M.; Sparks, R. T.; Walker, C. E.

2008-05-01

188

MSLICE Science Activity Planner for the Mars Science Laboratory Mission  

NASA Technical Reports Server (NTRS)

MSLICE (Mars Science Laboratory InterfaCE) is the tool used by scientists and engineers on the Mars Science Laboratory rover mission to visualize the data returned by the rover and collaboratively plan its activities. It enables users to efficiently and effectively search all mission data to find applicable products (e.g., images, targets, activity plans, sequences, etc.), view and plan the traverse of the rover in HiRISE (High Resolution Imaging Science Experiment) images, visualize data acquired by the rover, and develop, model, and validate the activities the rover will perform. MSLICE enables users to securely contribute to the mission s activity planning process from their home institutions using off-the-shelf laptop computers. This software has made use of several plug-ins (software components) developed for previous missions [e.g., Mars Exploration Rover (MER), Phoenix Mars Lander (PHX)] and other technology tasks. It has a simple, intuitive, and powerful search capability. For any given mission, there is a huge amount of data and associated metadata that is generated. To help users sort through this information, MSLICE s search interface is provided in a similar fashion as major Internet search engines. With regard to the HiRISE visualization of the rover s traverse, this view is a map of the mission that allows scientists to easily gauge where the rover has been and where it is likely to go. The map also provides the ability to correct or adjust the known position of the rover through the overlaying of images acquired from the rover on top of the HiRISE image. A user can then correct the rover s position by collocating the visible features in the overlays with the same features in the underlying HiRISE image. MSLICE users can also rapidly search all mission data for images that contain a point specified by the user in another image or panoramic mosaic. MSLICE allows the creation of targets, which provides a way for scientists to collaboratively name features on the surface of Mars. These targets can also be used to convey instrument-pointing information to the activity plan. The software allows users to develop a plan of what they would like the rover to accomplish for a given time period. When developing the plan, the user can input constraints between activities or groups of activities. MSLICE will enforce said constraints and ensure that all mission flight rules are satisfied.

Powell, Mark W.; Shams, Khawaja S.; Wallick, Michael N.; Norris, Jeffrey S.; Joswig, Joseph C.; Crockett, Thomas M.; Fox, Jason M.; Torres, Recaredo J.; Kurien, James A.; McCurdy, Michael P.; Pyrzak, Guy; Aghevli, Arash; Bachmann, Andrew G.

2009-01-01

189

Enhancing Learning Using Modular Wireless Sensor Networking (WSN) Hands-On Experiments  

NASA Astrophysics Data System (ADS)

This paper presents the use of WSN in educational research as a platform for enhanced learning through hands-on modular experiments to illustrate abstract theoretical concepts in diverse courses in Electrical Engineering. The WSN consists of Mica2 motes with on-board sensors, wireless communication antennas, and processors that are programmed using NesC. Three sets of experiments feeding into different courses (e.g., wireless embedded networks, detection and estimation, stochastic processes, probability theory, statistical pattern recognition, and digital signal processing) and illustrating different theoretical concepts are presented in details. These experiments can be used as demos in those courses and/or can be incorporated as hands-on laboratory projects to go hand in hand with the course. Assessment of the experiments as pedagogical tools are also presented through well designed evaluation questionnaires given to the students. Assessment survey shows that both the sensor network platform and the novel experiments built on them are pedagogically successful tools.

Taslidere, Ezgi; Cohen, Fernand S.; Reisman, Fredricka

190

The Bohr Model and the Fifth Grade: A New Standards-Based Hands-On Physics Curriculum  

Microsoft Academic Search

A semester-long, standards-based, hands-on physics curriculum appropriate for the fifth grade was developed. Previously available curricula were successful in using hands-on activities to teach basic fifth-grade physics skills and concepts, but did not attempt to foster understanding of the fundamental underlying physics. We expanded the role of inquiry-based instruction to expose students to the fundamental physics behind electricity, forces, energy,

Jeff Brock; Russell Springer; Bennett Goldberg

2004-01-01

191

PRINCETON PLASMA PHYSICS LABORATORY This publication highlights activities at the Princeton Plasma Physics Laboratory for fiscal year 1996 --1 October  

E-print Network

HIGHLIGHTS PRINCETON PLASMA PHYSICS LABORATORY #12;This publication highlights activities at the Princeton Plasma Physics Laboratory for fiscal year 1996 -- 1 October 1995 through 30 September 1996 Established in 1951, the Princeton Plasma Physics Laborato- ry (PPPL) is dedicated to developing

192

Hands on Weka: Part II Petra Kralj Novak  

E-print Network

Hands on Weka: Part II Petra Kralj Novak 18.11.2013 #12;Exercise 2: CAR dataset · 1728 examples · 6 the data for WEKA - 1 Data in a spreadsheet (e.g. MS Excel) - Rows are examples - Columns are attributes - The last column is the target variable #12;Preparing the data for WEKA - 2 Save as ".csv" - Careful

Novak, Petra Kralj

193

Hands on Weka: Part II Petra Kralj Novak  

E-print Network

Hands on Weka: Part II Petra Kralj Novak 4.12.2012 #12;Exercise 2: CAR dataset · 1728 examples · 6 the data for WEKA - 1 Data in a spreadsheet (e.g. MS Excel) - Rows are examples - Columns are attributes - The last column is the target variable #12;Preparing the data for WEKA - 2 Save as ".csv" - Careful

Novak, Petra Kralj

194

Hands-on teaching of power system dynamics  

Microsoft Academic Search

Knowledge of power system dynamics is essential for any engineer who is to design or operate a modern interconnected power system. System instability and, in the extreme, system collapse are very costly to power utilities and their customers. Power system dynamics is not an easy subject to teach. What is required is a hands-on computer course in which students can

G. Rogers; J. Chow

1995-01-01

195

A Set of Hands-On Exercises on Conformational Analysis  

ERIC Educational Resources Information Center

Conformational analysis is one of the first topics in the organic chemistry curriculum that deals with the crucial problem of viewing and drawing organic molecules. A set of comprehensive exercises is devised that facilitates the students understanding of elementary concepts of conformational analysis with the use of a hands-on approach.

Pellegrinet, Silvina C.; Mata, Ernesto G.

2005-01-01

196

Google Earth for Landowners: Insights from Hands-on Workshops  

ERIC Educational Resources Information Center

Google Earth is an accessible, user-friendly GIS that can help landowners in their management planning. I offered hands-on Google Earth workshops to landowners to teach skills, including mapmaking, length and area measurement, and database management. Workshop participants were surveyed at least 6 months following workshop completion, and learning…

Huff, Tristan

2014-01-01

197

Enhancing Students' Inferential Reasoning: From Hands-On to "Movies"  

ERIC Educational Resources Information Center

Computer simulations and animations for developing statistical concepts are often not understood by beginners. Hands-on physical simulations that morph into computer simulations are teaching approaches that can build students' concepts. In this paper we review the literature on visual and verbal cognitive processing and on the efficacy of…

Arnold, Pip; Pfannkuch, Maxine; Wild, Chris J.; Regan, Matt; Budgett, Stephanie

2011-01-01

198

Hands on CERN: A Well-Used Physics Education Project  

ERIC Educational Resources Information Center

The "Hands on CERN" education project makes it possible for students and teachers to get close to the forefront of scientific research. The project confronts the students with contemporary physics at its most fundamental level with the help of particle collisions from the DELPHI particle physics experiment at CERN. It now exists in 14 languages…

Johansson, K. E.

2006-01-01

199

Hands-On Python A Tutorial Introduction for Beginners  

E-print Network

Hands-On Python A Tutorial Introduction for Beginners Dr. Andrew N. Harrington Computer Science Chapter 1. Beginning With Python 4 1.1. Context 4 1.2. The Python Interpreter and Idle, Part I 6 1 Basics 125 4.2. Composing Web Pages in Python 127 4.3. CGI - Dynamic Web Pages 131 4.4. Summary 137 3 #12

Reluga, Tim

200

Hands-On Reciprocal Teaching: A Comprehension Technique  

ERIC Educational Resources Information Center

Reciprocal teaching is a researched-based technique that utilizes the comprehension strategies of predicting, clarifying, questioning, and summarizing. This article provides methods of incorporating characters, props, and visual and hands-on tools to encourage and motivate students to learn through reciprocal teaching. Teachers are given…

Stricklin, Kelley

2011-01-01

201

Engaging First-Year Undergraduates in Hands-On Research Experiences: The Upper Green River Barcode of Life Project  

ERIC Educational Resources Information Center

To improve retention and engagement, first-year college science majors enrolled in University Experience orientation courses participated in a hands-on laboratory research experience: a DNA barcoding project to facilitate species identification. Students collected arthropods and hypothesized morphology-based species identifications. Then they…

Marcus, Jeffrey M.; Hughes, Tia M.; McElroy, Douglas M.; Wyatt, Robert E.

2010-01-01

202

Low-Speed Active Flow Control Laboratory Developed  

NASA Technical Reports Server (NTRS)

The future of aviation propulsion systems is increasingly focused on the application of control technologies to significantly enhance the performance of a new generation of air vehicles. Active flow control refers to a set of technologies that manipulate the flow of air and combustion gases deep within the confines of an engine to dynamically alter its performance during flight. By employing active flow control, designers can create engines that are significantly lighter, are more fuel efficient, and produce lower emissions. In addition, the operating range of an engine can be extended, yielding safer transportation systems. The realization of these future propulsion systems requires the collaborative development of many base technologies to achieve intelligent, embedded control at the engine locations where it will be most effective. NASA Glenn Research Center s Controls and Dynamics Technology Branch has developed a state-of-the-art low-speed Active Flow Control Laboratory in which emerging technologies can be integrated and explored in a flexible, low-cost environment. The facility allows the most promising developments to be prescreened and optimized before being tested on higher fidelity platforms, thereby reducing the cost of experimentation and improving research effectiveness.

Culley, Dennis E.; Bright, Michelle M.

2005-01-01

203

Educational Activities At The Nuclear Engineering Teaching Laboratory  

NASA Astrophysics Data System (ADS)

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.

Tipping, Tracy N.

2011-06-01

204

Current Reactor Physics Benchmark Activities at the Idaho National Laboratory  

SciTech Connect

The International Reactor Physics Experiment Evaluation Project (IRPhEP) [1] and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) [2] were established to preserve integral reactor physics and criticality experiment data for present and future research. These valuable assets provide the basis for recording, developing, and validating our integral nuclear data, and experimental and computational methods. These projects are managed through the Idaho National Laboratory (INL) and the Organisation for Economic Co-operation and Development Nuclear Energy Agency (OECD-NEA). Staff and students at the Department of Energy - Idaho (DOE-ID) and INL are engaged in the development of benchmarks to support ongoing research activities. These benchmarks include reactors or assemblies that support Next Generation Nuclear Plant (NGNP) research, space nuclear Fission Surface Power System (FSPS) design validation, and currently operational facilities in Southeastern Idaho.

John D. Bess; Margaret A. Marshall; Mackenzie L. Gorham; Joseph Christensen; James C. Turnbull; Kim Clark

2011-11-01

205

Science beyond the Classroom: Hands-On Optics and the Boys and Girls Club  

NASA Astrophysics Data System (ADS)

In Summer and Fall 2006, the Hands-On Optics program of the National Optical Astronomy Observatory (NOAO) teamed up with two local Boys and Girls Clubs in the Tucson area to conduct informal education programs for elementary and middle school aged children. Hands-On Optics (HOO) is a collaborative program funded by NSF to create and sustain a unique, national, informal science education program to excite students about science by actively engaging them in optics activities. The program was designed especially to reach underserved students. In this talk, the successes and challenges of implementing these programs will be discussed, as well as the lessons learned in the process, which may be applied to other partnerships between EPO providers and informal learning venues.

Dokter, Erin F.; Walker, C.; Peruta, C.; Ubach, C.; Sparks, R.; Pompea, S.

2006-12-01

206

An investigation of the impact of selected prereading activities on student content learning through laboratory activities  

NASA Astrophysics Data System (ADS)

This study investigated whether two prereading activities impacted student learning from hands-on science activities. The study was based on constructivist learning theory. Based on the work of Piaget, it was hypothesized that students who activated prior knowledge would learn more from the activities. Based on the work of Vygotsky it was hypothesized that students who talk more and write more would learn more from the activity. The K-W-L chart and anticipation guide strategies were used with eighth grade students at Graves Middle School in Whittier, California before learning about levers and convection currents. D. M. Ogle (1986) created the three-column K-W-L chart to have students activate prior knowledge. In the first column, the students write what they already know about a subject, in the second column, the students write what they want to know about the subject, and the students complete the third column after learning about a subject by writing answers to the questions that they asked in the second column. Duffelmeyer (1994) created the anticipation guide based on Herber's (1978) reasoning guide. In the anticipation guide, the teacher creates three or four sentences that convey the major ideas of the topic and the students either agree or disagree with the statements. After learning about the topic, students revisit their answers and decide if they were correct or incorrect and they must defend their choices. This research used the Solomon (1947) four-square design and compared both the experimental groups to a control group that simply discussed the concepts before completing the activity. The research showed no significant difference between the control group and either of the treatment groups. The reasons for the lack of significant differences are considered. It was hypothesized that since the students were unfamiliar with the prereading activities and did not have much experience with using either writing-to-learn or talking-to-learn strategies, the short-term intervention was not effective. Directions for future study are considered.

Kass, Jesse (Shaya)

207

Inquiry-Based Laboratory Activities in Electrochemistry: High School Students' Achievements and Attitudes  

NASA Astrophysics Data System (ADS)

This study aimed to investigate the effects of inquiry-based laboratory activities on high school students' understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental ( N = 30) and control groups ( N = 32). The experimental group was taught using inquiry-based laboratory activities developed by the researchers and the control group was instructed using traditional laboratory activities. The results of the study indicated that instruction based on inquiry-based laboratory activities caused a significantly better acquisition of scientific concepts related to electrochemistry, and produced significantly higher positive attitudes towards chemistry and laboratory. In the light of the findings, it is suggested that inquiry-based laboratory activities should be developed and applied to promote students' understanding in chemistry subjects and to improve their positive attitudes.

Acar Sesen, Burcin; Tarhan, Leman

2013-02-01

208

Hands-On Solid Modeling Experiences in a Course Project  

NSDL National Science Digital Library

This paper focuses on the hands-on experience of 3-D solid modeling technique and prototyping employed in product design and realization process. Engineering Graphics and CAD/CAM are two of the core courses in the Manufacturing Engineering program. Computer aided design and drafting, as well as solid modeling of parts, are strongly emphasized in the Engineering Graphics curriculum which is taught in the sophomore year. In continuation, both manual and computer aided CNC programming are covered in the CAD/CAM curriculum taught in the junior year. Computer Aided Reverse Engineering of cork opener, gear puller, cell phone case, and cell phone cover were the selected course projects taken by students in the CAD/CAM course. One of the main objectives of the curse project was for the students to extend their knowledge in design process and gain a hands-on experience in the field of solid modeling and product realization. A caliper and a micrometer were used to measure the main dimensions of the parts, and a solid modeling program was used for creating the parts model and assembly as well. This paper describes hands-on solid modeling and prototyping experiences of manufacturing engineering students regarding product realization process at our program.

Ansari, Jahangir

2010-07-29

209

Are Virtual Labs as Effective as Hands-on Labs for Undergraduate Physics? A Comparative Study at Two Major Universities  

NASA Astrophysics Data System (ADS)

Most physics professors would agree that the lab experiences students have in introductory physics are central to the learning of the concepts in the course. It is also true that these physics labs require time and money for upkeep, not to mention the hours spent setting up and taking down labs. Virtual physics lab experiences can provide an alternative or supplement to these traditional hands-on labs. However, physics professors may be very hesitant to give up the hands-on labs, which have been such a central part of their courses, for a more cost and time-saving virtual alternative. Thus, it is important to investigate how the learning from these virtual experiences compares to that acquired through a hands-on experience. This study evaluated a comprehensive set of virtual labs for introductory level college physics courses and compared them to a hands-on physics lab experience. Each of the virtual labs contains everything a student needs to conduct a physics laboratory experiment, including: objectives, background theory, 3D simulation, brief video, data collection tools, pre- and postlab questions, and postlab quiz. This research was conducted with 224 students from two large universities and investigated the learning that occurred with students using the virtual labs either in a lab setting or as a supplement to hands-on labs versus a control group of students using the traditional hands-on labs only. Findings from both university settings showed the virtual labs to be as effective as the traditional hands-on physics labs.

Darrah, Marjorie; Humbert, Roxann; Finstein, Jeanne; Simon, Marllin; Hopkins, John

2014-08-01

210

The first clinical application of a "hands-on" robotic knee surgery system.  

PubMed

The performance of a novel "hands-on" robotic system for total knee replacement (TKR) surgery is evaluated. An integrated robotic system for accurately machining the bone surfaces in TKR surgery is described. Details of the system, comprising an "active constraint" robot, called Acrobot, a "gross positioning" robot, and patient clamps, are provided. The intraoperative protocol and the preoperative, CT-based, planning system are also described. A number of anatomical registration and cutting trials, using plastic bones, are described, followed by results from two preliminary clinical trials, which demonstrate the accuracy achieved in the anatomical registration. Finally, the first clinical trial is described, in which the results of the anatomical registration and bone cutting are seen to be of high quality. The Acrobot system has been successfully used to accurately register and cut the knee bones in TKR surgery. This demonstrates the great potential of a "hands-on" robot for improving accuracy and increasing safety in surgery. PMID:11954064

Jakopec, M; Harris, S J; Rodriguez y Baena, F; Gomes, P; Cobb, J; Davies, B L

2001-01-01

211

Stanford Synchrotron Radiation Laboratory activity report for 1987  

SciTech Connect

During 1987, SSRL achieved many significant advances and reached several major milestones utilizing both SPEAR and PEP as synchrotron radiation sources as described in this report. Perhaps the following two are worthy of particular mention: (1) SPEAR reached an all time high of 4,190 delivered user-shifts during calendar year 1987, highlights of the many scientific results are given; (2) during a 12 day run in December of 1987, PEP was operated in a low emittance mode (calculated emittance 6.4 nanometer-radians) at 7.1 GeV with currents up to 33 mA. A second undulator beam line on PEP was commissioned during this run and used to record many spectra showing the extremely high brightness of the radiation. PEP is now by far the highest brightness synchrotron radiation source in the world. The report is divided into the following sections: (1) laboratory operations; (2) accelerator physics programs; (3) experimental facilities; (4) engineering division; (5) conferences and workshops; (6) SSRL organization; (7) experimental progress reports; (8) active proposals; (9) SSRL experiments and proposals by institution; and (10) SSRL publications.

Robinson, S.; Cantwell, K. [eds.

1988-12-31

212

Planaria Laboratory Activity - Teacher - The Science and Ethics of Stem Cell Research  

NSDL National Science Digital Library

This PDF file is for the teacher to use during the laboratory activity. Please also see the PDF file for use by students and the presentation for use by the teacher, also in the Planaria Laboratory Activity collection. This lab activity may be used in conjunction with the rest of the The Science and Ethics of Stem Cell Research curriculum.

2009-01-01

213

Planaria Laboratory Activity - Student - The Science and Ethics of Stem Cell Research  

NSDL National Science Digital Library

This PDF file is for a student to use during the laboratory activity. Please also see the PDF file and presentation for use by the teacher, also in the Planaria Laboratory Activity collection. This lab activity may be used in conjunction with the rest of the The Science and Ethics of Stem Cell Research curriculum.

2009-01-01

214

Planaria Laboratory Activity - Presentation - The Science and Ethics of Stem Cell Research  

NSDL National Science Digital Library

This PowerPoint presentation is for the teacher to use during the laboratory activity. Please also see the PDF files for use by students and the teacher, also in the Planaria Laboratory Activity collection. This lab activity may be used in conjunction with the rest of the The Science and Ethics of Stem Cell Research curriculum.

2009-01-01

215

Robotic Mission to Mars: Hands-on, minds-on, web-based learning  

NASA Astrophysics Data System (ADS)

Problem-based learning has been demonstrated as an effective methodology for developing analytical skills and critical thinking. The use of scenario-based learning incorporates problem-based learning whilst encouraging students to collaborate with their colleagues and dynamically adapt to their environment. This increased interaction stimulates a deeper understanding and the generation of new knowledge. The Victorian Space Science Education Centre (VSSEC) uses scenario-based learning in its Mission to Mars, Mission to the Orbiting Space Laboratory and Primary Expedition to the M.A.R.S. Base programs. These programs utilize methodologies such as hands-on applications, immersive-learning, integrated technologies, critical thinking and mentoring to engage students in Science, Technology, Engineering and Mathematics (STEM) and highlight potential career paths in science and engineering. The immersive nature of the programs demands specialist environments such as a simulated Mars environment, Mission Control and Space Laboratory, thus restricting these programs to a physical location and limiting student access to the programs. To move beyond these limitations, VSSEC worked with its university partners to develop a web-based mission that delivered the benefits of scenario-based learning within a school environment. The Robotic Mission to Mars allows students to remotely control a real rover, developed by the Australian Centre for Field Robotics (ACFR), on the VSSEC Mars surface. After completing a pre-mission training program and site selection activity, students take on the roles of scientists and engineers in Mission Control to complete a mission and collect data for further analysis. Mission Control is established using software developed by the ACRI Games Technology Lab at La Trobe University using the principles of serious gaming. The software allows students to control the rover, monitor its systems and collect scientific data for analysis. This program encourages students to work scientifically and explores the interaction between scientists and engineers. This paper presents the development of the program, including the involvement of university students in the development of the rover, the software, and the collation of the scientific data. It also presents the results of the trial phase of this program including the impact on student engagement and learning outcomes.

Mathers, Naomi; Goktogen, Ali; Rankin, John; Anderson, Marion

2012-11-01

216

Vectors and Fomites: An Investigative Laboratory for Undergraduates.  

ERIC Educational Resources Information Center

Presents a laboratory model system for introductory microbiology students that involves hands-on studies of bacteria vectored in soil nematodes. Describes a series of experiments designed to demonstrate vector-fomite transmission, bacterial survival, and disinfectant activity. Introduces the concept of genetically engineered microorganisms and the…

Adamo, Joseph A.; Gealt, Michael A.

1996-01-01

217

Safety Teams: An Approach to Engage Students in Laboratory Safety  

ERIC Educational Resources Information Center

We developed and implemented a yearlong safety program into our organic chemistry lab courses that aims to enhance student attitudes toward safety and to ensure students learn to recognize, demonstrate, and assess safe laboratory practices. This active, collaborative program involves the use of student "safety teams" and includes hands-on safety…

Alaimo, Peter J.; Langenhan, Joseph M.; Tanner, Martha J.; Ferrenberg, Scott M.

2010-01-01

218

Argonne National Laboratory: Laboratory Directed Research and Development FY 1993 program activities. Annual report  

SciTech Connect

The purposes of Argonne`s Laboratory Directed Research and Development (LDRD) Program are to encourage the development of novel concepts, enhance the Laboratory`s R&D capabilities, and further the development of its strategic initiatives. Projects are selected from proposals for creative and innovative R&D studies which are not yet eligible for timely support through normal programmatic channels. Among the aims of the projects supported by the Program are establishment of engineering ``proof-of-principle`` assessment of design feasibility for prospective facilities; development of an instrumental prototype, method, or system; or discovery in fundamental science. Several of these projects are closely associated with major strategic thrusts of the Laboratory as described in Argonne`s Five Year Institutional Plan, although the scientific implications of the achieved results extend well beyond Laboratory plans and objectives. The projects supported by the Program are distributed across the major programmatic areas at Argonne as indicated in the Laboratory LDRD Plan for FY 1993.

none,

1993-12-23

219

Current radar responsive tag development activities at Sandia National Laboratories.  

SciTech Connect

Over the past ten years, Sandia has developed RF radar responsive tag systems and supporting technologies for various government agencies and industry partners. RF tags can function as RF transmitters or radar transponders that enable tagging, tracking, and location determination functions. Expertise in tag architecture, microwave and radar design, signal analysis and processing techniques, digital design, modeling and simulation, and testing have been directly applicable to these tag programs. In general, the radar responsive tag designs have emphasized low power, small package size, and the ability to be detected by the radar at long ranges. Recently, there has been an interest in using radar responsive tags for Blue Force tracking and Combat ID (CID). The main reason for this interest is to allow airborne surveillance radars to easily distinguish U.S. assets from those of opposing forces. A Blue Force tracking capability would add materially to situational awareness. Combat ID is also an issue, as evidenced by the fact that approximately one-quarter of all U.S. casualties in the Gulf War took the form of ground troops killed by friendly fire. Because the evolution of warfare in the intervening decade has made asymmetric warfare the norm rather than the exception, swarming engagements in which U.S. forces will be freely intermixed with opposing forces is a situation that must be anticipated. Increasing utilization of precision munitions can be expected to drive fires progressively closer to engaged allied troops at times when visual de-confliction is not an option. In view of these trends, it becomes increasingly important that U.S. ground forces have a widely proliferated all-weather radar responsive tag that communicates to all-weather surveillance. The purpose of this paper is to provide an overview of the recent, current, and future radar responsive research and development activities at Sandia National Laboratories that support both the Blue Force Tracking and Combat ID application.

Plummer, Kenneth W.; Ormesher, Richard C.

2003-09-01

220

Hands-On Optics: An Informal Education Program for Exploring Light and Color  

NASA Astrophysics Data System (ADS)

Hands-On Optics (HOO) is a collaborative four-year program to create and sustain a unique, national, informal science education program to excite students about science by actively engaging them in optics activities. It will reach underrepresented middle school students in after-school programs and at hands-on science centers nationwide. Project partners with NOAO are SPIE-The International Society for Optical Engineering, the Optical Society of America (OSA), and the Mathematics, Engineering, Science Achievement Program (MESA) of California. This program builds on the 2001 National Science Foundation planning grant (number ESI-0136024), Optics Education - A Blueprint for the 21st Century, undertaken to address the disconnect between the ubiquity of optics in everyday life and the noticeable absence of optics education in K-12 curricula and in informal science education. NOAO - with expertise in teaching optics, developing optics kits, and in science-educator partnerships is designing the HOO instructional materials by adapting well-tested formal education activities on light, color, and optical technology for the informal setting. These hands-on, high-interest, standards-connected activities and materials serve as the basis for 6, three-hour-long optics activity modules that will be used in informal education programs at 23 HOO host sites. NOAO also will train the educators, parents, and optics professionals who will work in teams to lead the HOO activities. A key component of the project will be the optics professionals from the two optical societies who currently are engaged in outreach activities and programs. Optics professionals will serve as resource agents teamed with science center and MESA educators, a model very successfully used by the Astronomical Society of the Pacific's Project ASTRO. The six modules and associated challenges and contests address reflection from one or many mirrors, image formation, colors and polarization, ultraviolet and infrared phenomena, and communication over a beam of light. Challenges and contests have also been created to augment the six modules. The Hands On Optics Project is funded by the National Science Foundation ISE program. NOAO is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation.

Pompea, S. M.; Walker, C. E.; Peruta, C. C.; Kinder, B. A.; Aceituno, J. C.; Pena, M. A.

2005-05-01

221

Argonne National Laboratory Annual Report of Laboratory Directed Research and Development Program Activities for FY 1994  

SciTech Connect

The purposes of Argonne's Laboratory Directed Research and Development (LDRD) Program are to encourage the development of novel concepts, enhance the Laboratory's R and D capabilities, and further the development of its strategic initiatives. Projects are selected from proposals for creative and innovative R and D studies which are not yet eligible for timely support through normal programmatic channels. Among the aims of the projects supported by the Program are establishment of engineering proof-of-principle; assessment of design feasibility for prospective facilities; development of an instrumental prototype, method, or system; or discovery in fundamental science. Several of these projects are closely associated with major strategic thrusts of the Laboratory as described in Argonne's Five-Year Institutional Plan, although the scientific implications of the achieved results extend well beyond Laboratory plans and objectives. The projects supported by the Program are distributed across the major programmatic areas at Argonne as indicated in the Laboratory's LDRD Plan for FY 1994. Project summaries of research in the following areas are included: (1) Advanced Accelerator and Detector Technology; (2) X-ray Techniques for Research in Biological and Physical Science; (3) Nuclear Technology; (4) Materials Science and Technology; (5) Computational Science and Technology; (6) Biological Sciences; (7) Environmental Sciences: (8) Environmental Control and Waste Management Technology; and (9) Novel Concepts in Other Areas.

None

1995-02-25

222

Laboratory Directed Research and Development Program Activities for FY 2007.  

SciTech Connect

Brookhaven National Laboratory (BNL) is a multidisciplinary laboratory that carries out basic and applied research in the physical, biomedical, and environmental sciences, and in selected energy technologies. It is managed by Brookhaven Science Associates, LLC, (BSA) under contract with the U. S. Department of Energy (DOE). BNL's Fiscal year 2007 budget was $515 million. There are about 2,600 employees, and another 4,500 guest scientists and students who come each year to use the Laboratory's facilities and work with the staff. The BNL Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) annually in March, as required by DOE Order 413.2B, 'Laboratory Directed Research and Development', April 19, 2006, and the Roles, Responsibilities, and Guidelines for Laboratory Directed Research and Development at the Department of Energy/National Nuclear Security Administration Laboratories dated June 13, 2006. In accordance this is our Annual Report in which we describe the Purpose, Approach, Technical Progress and Results, and Specific Accomplishments of all LDRD projects that received funding during Fiscal Year 2007. The goals and objectives of BNL's LDRD Program can be inferred from the Program's stated purposes. These are to (1) encourage and support the development of new ideas and technology, (2) promote the early exploration and exploitation of creative and innovative concepts, and (3) develop new 'fundable' R&D projects and programs. The emphasis is clearly articulated by BNL to be on supporting exploratory research 'which could lead to new programs, projects, and directions' for the Laboratory. We explicitly indicate that research conducted under the LDRD Program should be highly innovative, and an element of high risk as to success is acceptable. In the solicitation for new proposals for Fiscal Year 2007 we especially requested innovative new projects in support of RHIC and the Light Source and any of the Strategic Initiatives listed at the LDRD web site. These included support for NSLS-II, RHIC evolving to a quantum chromo dynamics (QCD) lab, nanoscience, translational and biomedical neuroimaging, energy and, computational sciences. As one of the premier scientific laboratories of the DOE, BNL must continuously foster groundbreaking scientific research. At Brookhaven National Laboratory one such method is through its LDRD Program. This discretionary research and development tool is critical in maintaining the scientific excellence and long-term vitality of the Laboratory. Additionally, it is a means to stimulate the scientific community and foster new science and technology ideas, which becomes a major factor in achieving and maintaining staff excellence and a means to address national needs within the overall mission of the DOE and BNL.

Newman,L.

2007-12-31

223

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

NSDL National Science Digital Library

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 teachi

Sara Nottingham

2010-05-01

224

Assessing High School Student Learning on Science Outreach Lab Activities  

ERIC Educational Resources Information Center

The effect of hands-on laboratory activities on secondary student learning was examined. Assessment was conducted over a two-year period, with 262 students participating the first year and 264 students the second year. Students took a prequiz, performed a laboratory activity (gas chromatography of alcohols, or photosynthesis and respiration), and…

Thomas, Courtney L.

2012-01-01

225

Fostering Elementary School Students' Understanding of Simple Electricity by Combining Simulation and Laboratory Activities  

ERIC Educational Resources Information Center

Computer simulations and laboratory activities have been traditionally treated as substitute or competing methods in science teaching. The aim of this experimental study was to investigate if it would be more beneficial to combine simulation and laboratory activities than to use them separately in teaching the concepts of simple electricity. Based…

Jaakkola, T.; Nurmi, S.

2008-01-01

226

Student Activities in Meteorology: SAM. Version 2.  

ERIC Educational Resources Information Center

The task of providing hands-on as well as minds-on activities for students in science is one of concern to many scientists and educators. In an effort to inspire student interest in science and technology, scientists from the Forecast Systems Laboratory, a laboratory within the National Oceanic and Atmospheric Administration's (NOAA) Environmental…

Meier, Beverly L.; Passarelli, Elisa

227

Hands on What? The Relative Effectiveness of Physical versus Virtual Materials in an Engineering Design Project by Middle School Children  

ERIC Educational Resources Information Center

"Hands-on" activities play an important, but controversial, role in early science education. In this study we attempt to clarify some of the issues surrounding the controversy by calling attention to distinctions between: (a) type of instruction (direct or discovery); (b) type of knowledge to be acquired (domain-general or domain-specific); and…

Klahr, David; Triona, Lara M.; Williams, Cameron

2007-01-01

228

Educational Science Kits All ages need the opportunity to explore science in a hands-on environment. Educational  

E-print Network

Educational Science Kits All ages need the opportunity to explore science in a hands-on environment of activities to learn about the process of science. The kits contain all the materials needed to complete, fulcrum, and mechanical advantage. Grades: 5-6 Floating and Sinking Kit Students develop their own answers

Wang, Xiaorui "Ray"

229

Hands-On Herpetology: Exploring Ecology and Conservation (e-book)  

NSDL National Science Digital Library

Plentiful, diverse, and readily available, these animals--known in science as "herps"--are also perfect for teaching students about biology, ecology, and conservation, including problems affecting both amphibians and reptiles. This highly readable resource melds rigorous science content with science research. Its five sections cover the animals' biology and handling procedures (including safety tips), provide background information for teachers, offer twenty-one indoor/outdoor activities, and broach critical conservation issues. Hands-On Herpetology: Exploring Ecology and Conservation is ideal for middle and high school teachers, volunteer leaders in 4-H and other clubs, and nature center staff who want to mix serious issues with amazing science.

Morreale, J. S.; Kransy, Marianne E.; Schneider, Rebecca L.

2009-06-09

230

Magnetic Braking Revisited: Activities for the Undergraduate Laboratory  

ERIC Educational Resources Information Center

This paper revisits the demonstration of Lenz by dropping magnets down a non-magnetic tube. Recent publications are reviewed and ideas for undergraduate laboratory investigations are suggested. Finally, an example of matching theory to observation is presented. (Contains 4 tables, 5 figures and 3 footnotes.)

Ireson, Gren; Twidle, John

2008-01-01

231

Argonne National Laboratory Annual Report of Laboratory Directed Research and Development program activities FY 2010.  

SciTech Connect

As a national laboratory Argonne concentrates on scientific and technological challenges that can only be addressed through a sustained, interdisciplinary focus at a national scale. Argonne's eight major initiatives, as enumerated in its strategic plan, are Hard X-ray Sciences, Leadership Computing, Materials and Molecular Design and Discovery, Energy Storage, Alternative Energy and Efficiency, Nuclear Energy, Biological and Environmental Systems, and National Security. The purposes of Argonne's Laboratory Directed Research and Development (LDRD) Program are to encourage the development of novel technical concepts, enhance the Laboratory's research and development (R and D) capabilities, and pursue its strategic goals. projects are selected from proposals for creative and innovative R and D studies that require advance exploration before they are considered to be sufficiently developed to obtain support through normal programmatic channels. Among the aims of the projects supported by the LDRD Program are the following: establishment of engineering proof of principle, assessment of design feasibility for prospective facilities, development of instrumentation or computational methods or systems, and discoveries in fundamental science and exploratory development.

(Office of The Director)

2012-04-25

232

Laboratory Technician: Zane Kraft  

NSDL National Science Digital Library

This is a PDF interview, PowerPoint slide set, and webpage biography of a laboratory technician, detailing the career information for someone who enjoys the hands-on experimentation of working with samples in the lab.

2012-05-02

233

The effect of inquiry-based, hands-on labs on achievement in middle school science  

NASA Astrophysics Data System (ADS)

The purpose of this quasi-experimental study was to measure the difference in science achievement between students who had been taught with an inquiry-based, hands-on pedagogical approach and those who had not. Improving student academic achievement and standardized test scores is the major objective of teachers, parents, school administrators, government entities, and students themselves. One major barrier to this academic success in Georgia, and the entire United States, has been the paucity of success in middle level science classes. Many studies have been conducted to determine the learning approaches that will best enable students to not only acquire a deeper understanding of science concepts, but to equip them to apply that new knowledge in their daily activities. Inquiry-based, hands-on learning involves students participating in activities that reflect methods of scientific investigation. The effective utilization of the inquiry-based learning approach demands inclusion of learners in a self-directed learning environment, the ability to think critically, and an understanding of how to reflect and reason scientifically. The treatment group using an inquiry-based, hands-on program did score slightly higher on the CRCT. However, the results revealed that there was not a significant difference in student achievement. This study showed that the traditionally instructed control group had slightly higher interest in science than the inquiry-based treatment group. The findings of this research study indicated that the NCLB mandates might need to be altered if there are no significant academic gains that result from the use of inquiry-based strategies.

Miller, Donna Kaye Green

234

Hands-on online : towards experiential product design education with online resources  

E-print Network

This pilot study investigates the potential for teaching experiential, hands-on product design online. Specifically, the work is a first attempt to elucidate differences in outcomes between residential, hands-on educational ...

Ramos, Joshua D

2013-01-01

235

Characteristics of Hands-On Simulations with Added Value for Innovative Secondary and Higher Vocational Education  

ERIC Educational Resources Information Center

The intentions with which hands-on simulations are used in vocational education are not always clear. Also, pedagogical-didactic approaches in hands-on simulations are not well conceptualised from a learning theory perspective. This makes it difficult to pinpoint the added value that hands-on simulations can have in an innovative vocational…

Khaled, Anne; Gulikers, Judith; Biemans, Harm; van der Wel, Marjan; Mulder, Martin

2014-01-01

236

Inquiry-Based Laboratory Activities in Electrochemistry: High School Students' Achievements and Attitudes  

ERIC Educational Resources Information Center

This study aimed to investigate the effects of inquiry-based laboratory activities on high school students' understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental (N =…

Sesen, Burcin Acar; Tarhan, Leman

2013-01-01

237

Waste characterization activities at the Lawrence Livermore National Laboratory  

SciTech Connect

Radioactive and hazardous wastes are generated at many national laboratories, military sites, fuel fabrication and enrichment plants, reactors, and many other facilities. At all of these sites, wastes must be separated, categorized, possibly treated, and packed into containers for shipment to waste-storage or disposal sites. Prior to treatment, storage or, shipment, the containers must be characterized to determine the ultimate disposition of the contained waste. Comprehensive and accurate nondestructive evaluation (NDE) and nondestructive assay (NDA) methods can be used to characterize most waste containers in a safe and cost-effective manner without opening them. The Lawrence Livermore National Laboratory (LLNL) is investigating and developing the application of x-ray and {gamma}-ray methods to nonintrusively characterize waste containers and/or items. X-ray NDE methods are being investigated to determine whether they can be used to identify hazardous and nonconforming materials. A {gamma}-ray NDA method is used to identify the radioactive sources within a container and to accurately quantify their strength. In this paper we describe five waste characterization projects being conducted at LLNL that apply both the NDE and NDA methods and present results.

Roberson, G.P.; Martz, H.E.; Haskins, J.J. [and others

1995-06-28

238

Conpendium of solar-thermal collector procurement activities at Sandia Laboratories  

Microsoft Academic Search

This report provides a single compendium of information about three major solar thermal collector procurement cycles and two special sole-source procurements undertaken by Sandia Laboratories. A summary of the experience and lessons learned from these activities is included.

1979-01-01

239

An intensive hands-on course designed to teach molecular biology techniques to physiology graduate students.  

PubMed

To address a growing need to make research trainees in physiology comfortable with the tools of molecular biology, we have developed a laboratory-intensive course designed for graduate students. This course is offered to a small group of students over a three-week period and is organized such that comprehensive background lectures are coupled with extensive hands-on experience. The course is divided into seven modules, each organized by a faculty member who has particular expertise in the area covered by that module. The modules focus on basic methods such as cDNA subcloning, sequencing, gene transfer, polymerase chain reaction, and protein and RNA expression analysis. Each module begins with a lecture that introduces the technique in detail by providing a historical perspective, describing both the uses and limitations of that technique, and comparing the method with others that yield similar information. Most of the lectures are followed by a laboratory session during which students follow protocols that were carefully designed to avoid pitfalls. Throughout these laboratory sessions, students are given an appreciation of the importance of proper technique and accuracy. Communication among the students, faculty, and the assistant coordinator is focused on when and why each procedure would be used, the importance of each step in the procedure, and approaches to troubleshooting. The course ends with an exam that is designed to test the students' general understanding of each module and their ability to apply the various techniques to physiological questions. PMID:11850327

Weston, Andrea D; Stasko, Sasha; Kidder, Gerald M

2002-12-01

240

An Intensive Hands-on Course Designed to Teach Molecular Biology Techniques to Physiology Graduate Students  

NSDL National Science Digital Library

To address a growing need to make research trainees in physiology comfortable with the tools of molecular biology, we have developed a laboratory-intensive course designed for graduate students. This course is offered to a small group of students over a three-week period and is organized such that comprehensive background lectures are coupled with extensive hands-on experience. The course is divided into seven modules, each organized by a faculty member who has particular expertise in the area covered by that module. The modules focus on basic methods such as cDNA subcloning, sequencing, gene transfer, polymerase chain reaction, and protein and RNA expression analysis. Each module begins with a lecture that introduces the technique in detail by providing a historical perspective, describing both the uses and limitations of that technique, and comparing the method with others that yield similar information. Most of the lectures are followed by a laboratory session during which students follow protocols that were carefully designed to avoid pitfalls. Throughout these laboratory sessions, students are given an appreciation of the importance of proper technique and accuracy. Communication among the students, faculty, and the assistant coordinator is focused on when and why each procedure would be used, the importance of each step in the procedure, and approaches to troubleshooting. The course ends with an exam that is designed to test the studentsÂ? general understanding of each module and their ability to apply the various techniques to physiological questions.

Dr. Andrea D. Weston (University of Western Ontario Department of Physiology)

2002-03-01

241

Geoelectrical signatures of microbial activity: A laboratory tank investigation  

NASA Astrophysics Data System (ADS)

Experiments in a 2D static tank (dimensions 145 cm x 85 cm x 6 cm) were performed to assess the effectiveness of various geo-electrical methods (induced polarization [IP], resistivity [R], self potential [SP], electrodic potential [El]) to monitor microbial activity. The tank was filled with coarse sand and saturated with water from the river Lagan (Belfast, UK) diluted with tap water (20:80 ratio). The river water was used to 'seed' microbial activity in the tank. We created 2 separate zones of activity by applying a layer of Hydrogen Release Compound (HRC) and a layer of Oxygen Release Compound (ORC) at the bottom and the middle of the tank respectively. This design aimed to simulate conditions at the oxic - anoxic interface commonly found in contaminated groundwaters. We recorded IP and R signals using a network of 32 electrodes on one side of the tank; the same electrodes were used for El measurements; we recorded the SP signals with 9 Petiau electrodes located at the top of the tank. El measurements provide us with detailed information on the spatial and temporal Eh evolution in the tank, as a result of microbial activity (indirect evidence), whereas the SP measurements are related directly to the microbial activity (direct evidence); IP and R measurements were aimed to provide additional insight on microbial induced fluid conductivity / porosity / mineralization processes expected to occur under our experimental conditions. The combination of El and SP measurements is shown to be a powerful approach for remote monitoring of microbial activity in the subsurface; the methods supplement each other to more accurately describe the microbial evolution. Furthermore , the interpretation of the subsurface conditions are improved when constrained by the fluid conductivity and mineralization changes inferred by the IP and R measurements. The results of this work suggest that a combination of different geo-electrical methods enhance the subsurface monitoring of microbial activity.

Reid, R.; Ntarlagiannis, D.; Doherty, R.; Binley, A.

2008-05-01

242

PAL(TM) 2.0 Human Anatomy Software Tool Use in Community College Traditional and Online Anatomy Laboratory Classes: Student-Perceived Learning Benefits  

ERIC Educational Resources Information Center

Human anatomy courses, with laboratory, are curricular requirements in graduate medical, undergraduate nursing, and all allied health science programs. Anatomy laboratory courses engage students in hands-on activities, including human cadaver or mammalian dissection, supported by photos from textbooks, detailed plastic models or human anatomical…

Kuyatt, Brian Lee

2012-01-01

243

The effects of hands-on-science instruction on the science achievement of middle school students  

NASA Astrophysics Data System (ADS)

Student achievement in the Twenty First Century demands a new rigor in student science knowledge, since advances in science and technology require students to think and act like scientists. As a result, students must acquire proficient levels of knowledge and skills to support a knowledge base that is expanding exponentially with new scientific advances. This study examined the effects of hands-on-science instruction on the science achievement of middle school students. More specifically, this study was concerned with the influence of hands-on science instruction versus traditional science instruction on the science test scores of middle school students. The subjects in this study were one hundred and twenty sixth-grade students in six classes. Instruction involved lecture/discussion and hands-on activities carried out for a three week period. Specifically, the study ascertained the influence of the variables gender, ethnicity, and socioeconomic status on the science test scores of middle school students. Additionally, this study assessed the effect of the variables gender, ethnicity, and socioeconomic status on the attitudes of sixth grade students toward science. The two instruments used to collect data for this study were the Prentice Hall unit ecosystem test and the Scientific Work Experience Programs for Teachers Study (SWEPT) student's attitude survey. Moreover, the data for the study was treated using the One-Way Analysis of Covariance and the One-Way Analysis of Variance. The following findings were made based on the results: (1) A statistically significant difference existed in the science performance of middle school students exposed to hands-on science instruction. These students had significantly higher scores than the science performance of middle school students exposed to traditional instruction. (2) A statistically significant difference did not exist between the science scores of male and female middle school students. (3) A statistically significant difference did not exist between the science scores of African American and non-African American middle school students. (4) A statistically significant difference existed in the socioeconomic status of students who were not provided with assisted lunches. Students with unassisted lunches had significantly higher science scores than those middle school students who were provided with assisted lunches. (5) A statistically significant difference was not found in the attitude scores of middle school students who were exposed to hands-on or traditional science instruction. (6) A statistically significant difference was not found in the observed attitude scores of middle school students who were exposed to either hands-on or traditional science instruction by their socioeconomic status. (7) A statistically significant difference was not found in the observed attitude scores of male and female students. (8) A statistically significant difference was not found in the observed attitude scores of African American and non African American students.

Wiggins, Felita

244

Manufacturing Enterprise Simulation as the Foundation Course and Synergistic Focus of Advanced Course Hands-On Application  

NSDL National Science Digital Library

This paper describes the effective utilization and benefits of a hands-on laboratory-based production enterprise simulation course as the introductory foundation for subsequent IT or IET program major courses. Using the Georgia Southern University B.S.-Manufacturing degree programs nationally recognized enterprise course as a model, the following key outcome-oriented benefits will be presented: "big picture" understanding of the industrial enterprise as a system; provision of a common base of experience which provides motivating synergy of upper-division course content; and a functioning production operation providing the capability to apply time studies, plant layout, lean concepts, tool design, ergonomics, automation and related studies in a tangible, hands-on basis to enhance major courses.

Waldrop, Phil

2009-09-07

245

Harvesting of Lunar Iron: Competitive Hands-on Learning  

NSDL National Science Digital Library

Electromagnets can be used to harvest free iron from lunar soil, known as regolith. Iron is important to the US plans for a lunar outpost. It does not rust in space, making it an excellent construction material. Circumpolar railroad tracks would allow a slowly-moving train to follow the sun, making agriculture possible, and enabling continuous operation of factories producing solar cells and oxygen for life support and propulsion. Designing an iron harvesting apparatus for the unique lunar environment requires that students re-think tacit assumptions about how things work. Within the context of a 33-student summer program, two college interns supervised nine high school upperclassmen in an eight week project to design, test, and evaluate a lunar iron harvester. Under the guidance of high school teachers, a research engineer outlined the constraints and parameters for the project. The college interns developed performance metrics, and the teachers established the framework for the competition. Three teams of three students developed their designs, which were reviewed by professional engineers prior to fabrication. A separate team performed research on the properties of lunar soil and prepared a test bed containing 150 kg of simulated regolith. One team identified a novel means to multiply electromagnet force using a recently-issued patent, creating great excitement between the teams and spurring them all to excel. Electromagnets were fabricated in the Packer Engineering shop, then operated by the students in a standardized competition format. Wearing proper protective gear, each team tested their device to determine the amount of free iron extracted from the regolith simulant. Performance was measured in mass of iron harvested per device mass, yielding surprising results, and powerful insights for the students. Results were published in a local newspaper. In this paper, we describe how this hands-on project fits within an overarching philosophy for engineering education within a paid summer intern program.

Beatty, Matthew; Schubert, Peter

2009-08-21

246

Geoelectrical signatures of microbial activity: A laboratory tank investigation  

Microsoft Academic Search

Experiments in a 2D static tank (dimensions 145 cm x 85 cm x 6 cm) were performed to assess the effectiveness of various geo-electrical methods (induced polarization [IP], resistivity [R], self potential [SP], electrodic potential [El]) to monitor microbial activity. The tank was filled with coarse sand and saturated with water from the river Lagan (Belfast, UK) diluted with tap

R. Reid; D. Ntarlagiannis; R. Doherty; A. Binley

2008-01-01

247

Bring the Poles to Your Classroom & Community Through Linked Hands-on Learning & IPY Data  

NASA Astrophysics Data System (ADS)

Two major legacies of the 4th International Polar Year (IPY 2007-9) are a newly galvanized educational community and an immense volume of polar data collected by the global science community. The tremendous new polar datasets represent a unique opportunity to communicate the nature of the changing poles to student and public audiences through this polar savvy educational community if effective approaches to link data and understanding are employed. We have developed a strategy for polar education that leverages the IPY data resources, linked with the polar education hands-on ‘manipulatives’ (materials that students can manipulate in a dynamic manner). This linked approach leverages the fundamental inquiry based learning but recognizes that particularly in the polar sciences the size of the earth, the remoteness of the poles and the scale of its processes make it difficult for students to explore in a hands-on manner. The linking of polar hands-on ‘manipulatives’ with IPY data provides a bridge between the tangible and the global. Alone manipulative activities can be beneficial in their ability to help students visualize a process or behavior, but without a strong link back to the Earth through data or evidence the understanding of the process is not transferred from the classroom model to the full scale Earth. The use of activities or models is beneficial in connecting the learner to the polar process(es), while the IPY data provides a unique opportunity to ground the polar manipulative experiments in real data. This linked strategy emerged from a series of NSF sponsored IPY Polar Fairs at major science museums that reached in excess of 12,000 people. The design of the fairs was that polar scientists developed activities linking low cost hands-on manipulatives to scientific evidence/data that was displayed in posters, images, and video clips. The participating scientists walked the ‘audience’ through the hands-on manipulative, then discussed their evidence while provided the reasoning. Adjusting this linked manipulative/data approach to the community of teachers will provide a very tangible education outcome to this community from IPY. Our linked manipulative-data strategy ensures polar processes are demonstrated, measured then matched with IPY data sets so that when examined in a guided exploration will provide the student the tools to generate the reasoning. This linked strategy is a powerful way to engage students in Earth science, and provide them with an entry to the wealth of professionally collected data sets that are available from both IPY and the broader science community, all while aligning with National Science Standards. We will demonstrate this approach, and show how the linked manipulative-data approach can be effectively used in community and school events to reach a wider audience.

Turrin, M.; Bell, R. E.; Kastens, K. A.; Pfirman, S. L.

2009-12-01

248

Heat Pipe Solar Receiver Development Activities at Sandia National Laboratories  

SciTech Connect

Over the past decade, Sandia National Laboratories has been involved in the development of receivers to transfer energy from the focus of a parabolic dish concentrator to the heater tubes of a Stirling engine. Through the isothermal evaporation and condensation of sodium. a heat-pipe receiver can efficiently transfer energy to an engine's working fluid and compensate for irregularities in the flux distribution that is delivered by the concentrator. The operation of the heat pipe is completely passive because the liquid sodium is distributed over the solar-heated surface by capillary pumping provided by a wick structure. Tests have shown that using a heat pipe can boost the system performance by twenty percent when compared to directly illuminating the engine heater tubes. Designing heat pipe solar receivers has presented several challenges. The relatively large area ({approximately}0.2 m{sup 2}) of the receiver surface makes it difficult to design a wick that can continuously provide liquid sodium to all regions of the heated surface. Selecting a wick structure with smaller pores will improve capillary pumping capabilities of the wick, but the small pores will restrict the flow of liquid and generate high pressure drops. Selecting a wick that is comprised of very tine filaments can increase the permeability of the wick and thereby reduce flow losses, however, the fine wick structure is more susceptible to corrosion and mechanical damage. This paper provides a comprehensive review of the issues encountered in the design of heat pipe solar receivers and solutions to problems that have arisen. Topics include: flow characterization in the receiver, the design of wick systems. the minimization of corrosion and dissolution of metals in sodium systems. and the prevention of mechanical failure in high porosity wick structures.

Adkins, D.R.; Andraka, C.E.; Moreno, J.B.; Moss, T.A.; Rawlinson, K.S.; Showalter, S.K.

1999-01-08

249

A Real-Time and Hands-On Research Course in Protein Purification and Characterization: Purification and Crystal Growth of Human Inosine Triphosphate Pyrophosphatase  

ERIC Educational Resources Information Center

A new lecture/laboratory course to offer advanced biochemical training for undergraduate and early graduate students has been developed in the Department of Chemistry at the University of Nebraska at Omaha. This unique course offers students an opportunity to work hands-on with modern instrumentation not normally found in a predominately…

Kreiling, Jodi L.; Brader, Kerry; Kolar, Carol; Borgstahl, Gloria E. O.

2011-01-01

250

Circadian Rhythm of Outside-Nest Activity in Wild (WWCPS), Albino and Pigmented Laboratory Rats  

PubMed Central

The domestication process of the laboratory rat has been going on for several hundred generations in stable environmental conditions, which may have affected their physiological and behavioural functions, including their circadian system. Rats tested in our ethological experiments were laboratory-bred wild Norway rats (WWCPS), two strains of pigmented laboratory rats (Brown Norway and Long Evans), and two strains of albino rats (Sprague-Dawley and Wistar). Rats were placed in purpose-built enclosures and their cycle of activity (time spent actively outside the nest) has been studied for one week in standard light conditions and for the next one in round-the-clock darkness. The analysis of circadian pattern of outside-nest activity revealed differences between wild, pigmented laboratory, and albino laboratory strains. During daytime, albino rats showed lower activity than pigmented rats, greater decrease in activity when the light was turned on and greater increase in activity when the light was switched off, than pigmented rats. Moreover albino rats presented higher activity during the night than wild rats. The magnitude of the change in activity between daytime and nighttime was also more pronounced in albino rats. Additionaly, they slept outside the nest more often during the night than during the day. These results can be interpreted in accordance with the proposition that intense light is an aversive stimulus for albino rats, due to lack of pigment in their iris and choroid, which reduces their ability to adapt to light. Pigmented laboratory rats were more active during lights on, not only in comparison to the albino, but also to the wild rats. Since the difference seems to be independent of light intensity, it is likely to be a result of the domestication process. Cosinor analysis revealed a high rhythmicity of circadian cycles in all groups. PMID:23762462

Stryjek, Rafa?; Modli?ska, Klaudia; Turlejski, Krzysztof; Pisula, Wojciech

2013-01-01

251

How to Make a Field Trip a Hands-On Investigative Laboratory: Learning about Marine Invertebrates  

ERIC Educational Resources Information Center

Research has shown that when students are given the opportunity to ask their own questions and design their own experiments, they become more interested in learning the answers. In this article, the author describes an effective method to do a field trip to the beach and gets her students to make observations about marine animals, come up with a…

Burrowes, Patricia A.

2007-01-01

252

Hands-on Training through the University of Florida Living Extension IPM Field Laboratory  

E-print Network

, demonstrating trap crop strategies, providing structures like bat houses, bird houses, snags and brush piles to teaching Integrated Pest Management (IPM). A 25 member, multi-disciplinary team of UF faculty. The demonstration farm reduced the use of insecticides by 50% in year one due to a dramatic increase in the number

Jawitz, James W.

253

Using Laboratory Chemicals to Imitate Illicit Drugs in a Forensic Chemistry Activity  

ERIC Educational Resources Information Center

This forensic chemistry activity utilizes presumptive forensic testing procedures and laboratory chemicals that produce screening results similar to controlled substances. For obvious reasons, obtaining heavily regulated controlled substances to create an undergraduate student activity is not practical for most educational institutions. We were…

Hasan, Shawn; Bromfield-Lee, Deborah; Oliver-Hoyo, Maria T.; Cintron-Maldonado, Jose A.

2008-01-01

254

Laboratory evaluation of prallethrin as an active ingredient of DUET® against Aedes aegypti and Aedes albopictus  

Technology Transfer Automated Retrieval System (TEKTRAN)

Prallethrin, one of the two active ingredients in DUET®, has previously been shown to activate Culex quinquefasciatus females in the laboratory resulting in greater mortality. In this study, formulations of DUET® prepared with and without prallethrin were evaluated in a wind tunnel with unfed and b...

255

Writing Activities Embedded in Bioscience Laboratory Courses to Change Students' Attitudes and Enhance Their Scientific Writing  

ERIC Educational Resources Information Center

We introduced writing activities into a project style third year undergraduate biomolecular science laboratory to assist the students to produce a final report in the form of a journal article. To encourage writing while the experimental work was proceeding, the embedded writing activities required ongoing analysis of experimental data. After…

Lee, Susan E.; Woods, Kyra J.; Tonissen, Kathryn F.

2011-01-01

256

Stanford Synchrotron Radiation Laboratory. Activity report for 1988  

SciTech Connect

For SSRL operations, 1988 was a year of stark contrasts. The first extended PEP parasitic running since the construction of our two beam lines on that storage ring took place in November and December. Four experiments discussed below, were performed and detailed operational procedures which allowed synchrotron radiation an high energy users to coexist were established. SSRL anticipates that there will be significant amounts of beam time when PEP is run again for high energy physics. On the other hand, activity on SPEAR consisted of brief parasitic running on the VUV lines in December when the ring was operated at 1.85 GeV for colliding beam experiments. There was no dedicated SPEAR running throughout the entire calendar year. This is the first time since dedicated SPEAR operation was initiated in 1980 that there was no such running. The decision was motivated by both cost and performance factors, as discussed in Section 1 of this report. Fortunately, SLAC and SSRL have reached an agreement on SPEAR and PEP dedicated time charges which eliminates the cost volatility which was so important in the cancellation of the June-July dedicated SPEAR run. As discussed in Section 2, the 3 GeV SPEAR injector construction is proceeding on budget and on schedule. The injector will overcome the difficulties associated with the SLC-era constraint of only two injections per day. SSR and SLAC have also embarked on a program to upgrade SPEAR to achieve high reliability and performance. As a consequence, SSRL`s users may anticipate a highly effective SPEAR by 1991, at the latest. At that time, SPEAR is expected to be fully dedicated to synchrotron radiation research and operated by SSRL. Also contained in this report is a discussion of the improvements to SSRL`s experimental facilities and highlights of the experiments of the past year.

Cantwell, K. [ed.

1996-01-01

257

Genetic analysis of circadian and ultradian locomotor activity rhythms in laboratory rats  

Microsoft Academic Search

Obvious differences exist in the daily activity patterns of the LEW\\/Ztm and ACI\\/Ztm inbred strains of laboratory rats. The inbred strain ACI\\/Ztm shows a clear 24-h rhythm of locomotor activity. The activity pattern of the LEW\\/Ztm strain, however, is characterized by ultradian rhythms of 4- and 4.8-h periods. Genetic analysis of crosses between the two strains was used to examine

Franziska Wollnik; Klaus Gärtner; Dietmar Büttner

1987-01-01

258

An approach to establish the uncertainty budget of catalytic activity concentration measurements in a reference laboratory.  

PubMed

Abstract Background: Reference laboratories providing reference services recognized by the Joint Committee for Traceability in Laboratory Medicine (JCTLM) must be accredited as calibration laboratories according to ISO 17025 and ISO 15195. These standards require laboratories to establish an uncertainty budget, in which the uncertainty contributions of the relevant uncertainty components are specified. We present a model to estimate the measurement uncertainty of creatine kinase catalytic activity concentration results obtained by IFCC primary reference measurement procedure. Methods: The measurement uncertainty has been estimated by following the next steps: 1) specification of the measurand; 2) identification of the most relevant uncertainty sources; 3) estimation of standard uncertainties by either type A or type B evaluation; 4) estimation of combined uncertainty while taking into account sensitivity coefficients, as well as existence of correlated uncertainty sources; and 5) estimation of expanded uncertainty with a defined coverage probability. Results: The estimated expanded uncertainty was 2.2% (k=2). Uncertainty sources with a significant contribution to the measurement uncertainty were the following: pH adjustment (0.68%), absorbance accuracy (0.48%), wavelength adjustment (0.20%), reaction temperature (0.19%), volume fraction of sample (0.15%) and absorbance linearity (0.06%). Conclusions: The present model is an approach to establish the uncertainty budget of primary reference procedures for the measurement of the catalytic activity concentration of enzymes, and aims at being an example to be followed by other reference laboratories, as well as by laboratories that carry out primary reference measurement procedures. PMID:25283140

Rami, Laura; Canalias, Francesca

2014-10-01

259

An Inquiry-Based Biochemistry Laboratory Structure Emphasizing Competency in the Scientific Process: A Guided Approach with an Electronic Notebook Format  

ERIC Educational Resources Information Center

The laboratory setting is an exciting and gratifying place to teach because you can actively engage the students in the learning process through hands-on activities; it is a dynamic environment amenable to collaborative work, critical thinking, problem-solving and discovery. The guided inquiry-based approach described here guides the students…

Hall, Mona L.; Vardar-Ulu, Didem

2014-01-01

260

Student Understanding of Chromatography: A Hands-On Approach  

NASA Astrophysics Data System (ADS)

This exercise sets up a collaborative activity that challenges students to develop a chromatographic solvent with the appropriate polarity to separate leaf chlorophyll and anthocyanin pigments by TLC. The suggested activity has been tested with both high-school advanced-chemistry students and with undergraduate students in an introductory biochemistry class. It includes a demonstration introducing the basic principles of partitioning and differential distribution based on solubility. For the student activity, the materials to be used are leaves of the variegated Coleus plant, plastic-backed silica TLC plates, 2-propanol, acetone, and methanol. Students may work collaboratively within a set of boundary parameters to optimize the chromatographic solvent through a series of rapid iterations of chromatography. Students can also use these chromatography systems to carry out independent projects.

Curtright, Robert D.; Emry, Randy; Markwell*, John

1999-02-01

261

An Independent Freshman Laboratory.  

ERIC Educational Resources Information Center

Describes a first-year laboratory course designed to fulfill laboratory objectives of reinforcing lecture material, teaching experimental methodology, developing hands-on skills, and imparting a sense of error. The course's six segments examine: digital electronics with students building a photogate timer; error analysis; linear accelerated…

Spencer, C. D.; Seligmann, P. F.

1992-01-01

262

Hands-On Addition and Subtraction with the Three Pigs.  

ERIC Educational Resources Information Center

Presents activities using the Three Pigs to increase students' understanding of addition and subtraction. Argues that addition and subtraction are something that students can view and participate in when using the Three Pigs instead of just the manipulation of numbers. (ASK)

Bartek, Mary Marron

1997-01-01

263

Student Content Knowledge Increases after Participation in a Hands-on Biotechnology Intervention  

ERIC Educational Resources Information Center

Implementing biotechnology education through hands-on teaching methods should be considered by secondary biology teachers. This study is an experimental research design to examine increased student content knowledge in biotechnology after a hands-on biotechnology intervention. The teachers from both school groups participated in, Project Crawfish,…

Bigler, Amber M.; Hanegan, Nikki L.

2011-01-01

264

Hands-On Practice Helps Students Master IT Skills and Succeed  

ERIC Educational Resources Information Center

Students in information technology (IT) need realistic, hands-on experience to master IT skills. When students have the opportunity to train with a hands-on curriculum and prepare to certify in the IT field, they become more deeply engaged in both their education and their career path. This article discusses LabSim, an IT certification training…

Wittman, William

2010-01-01

265

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

PubMed Central

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

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

2009-01-01

266

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) Data Loading Manual  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory. This report is intended to assist the user to enter PRA data into the SAPHIRE program using the built-in MAR-D ASCII-text file data transfer process. Towards this end, a small sample database is constructed and utilized for demonstration. Where applicable, the discussion includes how the data processes for loading the sample database relate to the actual processes used to load a larger PRA models. The procedures described herein were developed for use with SAPHIRE Version 6.0 and Version 7.0. In general, the data transfer procedures for version 6 and 7 are the same, but where deviations exist, the differences are noted. The guidance specified in this document will allow a user to have sufficient knowledge to both understand the data format used by SAPHIRE and to carry out the transfer of data between different PRA projects.

C. L. Smith; K. J. Kvarfordt; S. T. Wood

2006-07-01

267

Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) Data Loading Manual  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory. This report is intended to assist the user to enter PRA data into the SAPHIRE program using the built-in MAR-D ASCII-text file data transfer process. Towards this end, a small sample database is constructed and utilized for demonstration. Where applicable, the discussion includes how the data processes for loading the sample database relate to the actual processes used to load a larger PRA models. The procedures described herein were developed for use with SAPHIRE Version 6.0 and Version 7.0. In general, the data transfer procedures for version 6 and 7 are the same, but where deviations exist, the differences are noted. The guidance specified in this document will allow a user to have sufficient knowledge to both understand the data format used by SAPHIRE and to carry out the transfer of data between different PRA projects.

C. L. Smith; K. J. Kvarfordt; S. T. Wood

2008-08-01

268

A Novel Laboratory Activity for Teaching about the Evolution of Multicellularity  

ERIC Educational Resources Information Center

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…

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

2014-01-01

269

3-Dimensional and Interactive Istanbul University Virtual Laboratory Based on Active Learning Methods  

ERIC Educational Resources Information Center

The purpose of this study is to develop a 3-dimensional interactive multi-user and multi-admin IUVIRLAB featuring active learning methods and techniques for university students and to introduce the Virtual Laboratory of Istanbul University and to show effects of IUVIRLAB on students' attitudes on communication skills and IUVIRLAB. Although…

Ince, Elif; Kirbaslar, Fatma Gulay; Yolcu, Ergun; Aslan, Ayse Esra; Kayacan, Zeynep Cigdem; Alkan Olsson, Johanna; Akbasli, Ayse Ceylan; Aytekin, Mesut; Bauer, Thomas; Charalambis, Dimitris; Gunes, Zeliha Ozsoy; Kandemir, Ceyhan; Sari, Umit; Turkoglu, Suleyman; Yaman, Yavuz; Yolcu, Ozgu

2014-01-01

270

Promoting Science Outdoor Activities for Elementary School Children: Contributions from a research laboratory  

Microsoft Academic Search

The purposes of the study were to analyse the promotion of scientific literacy through practical research activities and to identify children's conceptions about scientists and how they do science. Elementary school children were engaged in two scientific experiments in a marine biology research laboratory. A total of 136 students answered a questionnaire about their previous habits towards science and carried

Diana Boaventura; Cláudia Faria; Isabel Chagas; Cecília Galvão

2011-01-01

271

Los Alamos Scientific Laboratory waste management technology development activities. Summary progress report, 1979  

SciTech Connect

Summary reports on the Department of Energy's Nuclear Energy-sponsored waste management technology development projects at the Los Alamos Scientific Laboratory describe progress for calendar year 1979. Activities in airborne, low-level, and transuranic waste management areas are discussed. Work progress on waste assay, treatment, disposal, and environmental monitoring is reviewed.

Johnson, L.J. (comp.)

1980-10-01

272

Promoting Science Outdoor Activities for Elementary School Children: Contributions from a Research Laboratory  

ERIC Educational Resources Information Center

The purposes of the study were to analyse the promotion of scientific literacy through practical research activities and to identify children's conceptions about scientists and how they do science. Elementary school children were engaged in two scientific experiments in a marine biology research laboratory. A total of 136 students answered a…

Boaventura, Diana; Faria, Claudia; Chagas, Isabel; Galvao, Cecilia

2013-01-01

273

Lawrence Berkeley National Laboratory report LBNL-58751 Active Control for Statistically Stationary Turbulent  

E-print Network

Lawrence Berkeley National Laboratory report LBNL-58751 Active Control for Statistically Stationary Turbulent Premixed Flame Simulations J. B. Bell, M. S. Day, J. F. Grcar, M. J. Lijewski Lawrence Berkeley Symposium includes studies by Sattler et al. [33] of a turbulent V-flame, Shepherd et al. [34] of a swirl

274

Improving chemical education from high school to college using a more hands-on approach  

NASA Astrophysics Data System (ADS)

In this work, various alternative teaching methods and activities for chemical education are developed, presented, and evaluated. In the first study, an original hands-on activity using LEGO® blocks to model ionic chemical formulas is presented together with quantitative and qualitative data regarding its educational effectiveness. Students explore cation to anion ratios using LEGO® blocks to represent trivalent, divalent and monovalent cations and anions. High school chemistry students who participated in the LEGO® lab showed significantly higher post-test scores than other students. The second study grows out of the creation of a computational lab module that is shown to significantly increase student learning in the subject of molecular orbital theory in first semester college General Chemistry. The third and final study presented is a course redesign project for college CHEM 1100, Preparation for General Chemistry. In this project the classroom is “flipped”. Students watch video lectures at home, and spend class time working with peers and the instructor on problem solving activities. The results presented here are one of the first quantitative studies showing the effectiveness of “flipping the classroom”. Students who were taught using the Reverse-Instruction (RI) method had significantly higher success in both the Preparation for General Chemistry course and traditionally taught General Chemistry I the following semester.

Ruddick, Kristie Winfield

275

Teaching a Hands-on Biomedical Instrumentation Course Jointly at Two Institutions  

NSDL National Science Digital Library

The Biomedical Engineering (BME) department at the University of North Carolina at Chapel Hill (UNC) has taught a microcontroller applications course for many years. In this course, students learn how to program a microcontroller and interface it to hardware to develop biomedical instruments, such as a heart rate monitor and temperature sensor. With the development of a joint BME department at UNC and North Carolina State University (NCSU), the faculty realized that it would be beneficial to teach the class jointly at NCSU, as the students there needed more hands-on opportunities in biomedical instrumentation. The class meets twice each week using videoconferencing equipment. Both classrooms are equipped with multiple screens for viewing video of the distant location, as well as sharing a computer desktop. Students work in the laboratory on weekly homework assignments and miniprojects, in which they program microcontrollers and develop biomedical instruments. The laboratories on each campus have equivalent hardware setups, as well as videoconferencing equipment so that faculty can help the students remotely. The primary teacher for this class is based at UNC, and he occasionally travels to NCSU to work with those students directly. In addition, a faculty member at NCSU is present for most classes, and he is available to provide assistance to the NCSU students outside of class. In this manner, the NCSU students have opportunities to get in-person help from a faculty member. Feedback on this experience was measured at mid-semester and at the end of the semester. This experience can serve as a model for teaching courses jointly at our universities as well as elsewhere.

Goldberg, Richard; Lalush, David

2010-03-11

276

STAR Library Education Network: a hands-on learning program for libraries and their communities  

NASA Astrophysics Data System (ADS)

Science and technology are widely recognized as major drivers of innovation and industry (e.g. Rising above the Gathering Storm, 2006). While the focus for education reform is on school improvement, there is considerable research that supports the role that out-of-school experiences can play in student achievement and public understanding of STEM disciplines. Libraries provide an untapped resource for engaging underserved youth and their families in fostering an appreciation and deeper understanding of science and technology topics. Designed spaces, like libraries, allow lifelong, life-wide, and life-deep learning to take place though the research basis for learning in libraries is not as developed as other informal settings like science centers. The Space Science Institute’s National Center for Interactive Learning (NCIL) in partnership with the American Library Association (ALA), the Lunar and Planetary Institute (LPI), and the National Girls Collaborative Project (NGCP) have received funding from NSF to develop a national education project called the STAR Library Education Network: a hands-on learning program for libraries and their communities (or STAR-Net for short). STAR stands for Science-Technology, Activities and Resources. The overarching goal of the project is to reach underserved youth and their families with informal STEM learning experiences. This project will deepen our knowledge of informal/lifelong learning that takes place in libraries and establish a learning model that can be compared to the more established free-choice learning model for science centers and museums. The project includes the development of two STEM hands-on exhibits on topics that are of interest to library staff and their patrons: Discover Earth and Discover Tech. In addition, the project will produce resources and inquiry-based activities that libraries can use to enrich the exhibit experience. Additional resources will be provided through partnerships with relevant professional science and technology organizations (e.g. American Geophysical Union; National Academy of Engineering) that will provide speakers for host library events and webinars. Online and in-person workshops will be conducted for library staff with a focus on increasing content knowledge and improving facilitation expertise. This presentation will report on strategic planning activities for STAR-Net, a Community of Practice model, and the evaluation/research components of this national education program.

Dusenbery, P.

2010-12-01

277

Bioelectrical impedance analysis as a laboratory activity: At the interface of physics and the body  

NASA Astrophysics Data System (ADS)

We present a novel laboratory activity on RC circuits aimed at introductory physics students in life-science majors. The activity teaches principles of RC circuits by connecting ac-circuit concepts to bioelectrical impedance analysis (BIA) using a custom-designed educational BIA device. The activity shows how a BIA device works and how current, voltage, and impedance measurements relate to bioelectrical characteristics of the human body. From this, useful observations can be made including body water, fat-free mass, and body fat percentage. The laboratory is engaging to pre-health and life-science students, as well as engineering students who are given the opportunity to observe electrical components and construction of a commonly used biomedical device. Electrical concepts investigated include alternating current, electrical potential, resistance, capacitance, impedance, frequency, phase shift, device design, and the use of such topics in biomedical analysis.

Mylott, Elliot; Kutschera, Ellynne; Widenhorn, Ralf

2014-05-01

278

Science &Language Teaching in Hands-on Education  

NASA Astrophysics Data System (ADS)

As announced in the paper presented in Toulouse, a trinational teacher training program addressing school teachers from France, Germany and Italy on teaching foreign languages together with science and history through Space related projects has been implemented and launched successfully. Supported by the French Ministry of Education (Académie de Nice), the bigovernmental French-German Youth Office (Office franco- allemand pour la Jeunesse) and the European Space Agency the first session was held in Cannes in October 2001 and brought together 36 language, science and history teachers, 12 from each country. Through different workshops, presentations and visits this five-day training encounter initiated the participants with Space activities and exploration as well as offering them back-up information on astronomy. It gave them furthermore the opportunity of improving their linguistic skills and of exchanging their teaching experience. The program was highly welcomed by all the participants who will meet this year in Germany for the second session devoted to establishing together bi- or trinational projects for future class encounters based on the same subjects. My paper will deal with the results of the program which have been beyond expectation and will encourage us to continue this pluridisciplinary approach of language &science teaching and extend it to other language combinations.

Gehlert, Sylvia

2002-01-01

279

Comparison of laboratory-scale thermophilic biofilm and activated sludge processes integrated with a mesophilic activated sludge process  

Microsoft Academic Search

A combined thermophilic–mesophilic wastewater treatment was studied using a laboratory-scale thermophilic activated sludge process (ASP) followed by mesophilic ASP or a thermophilic suspended carrier biofilm process (SCBP) followed by mesophilic ASP, both systems treating diluted molasses (dilution factor 1:500 corresponding GF\\/A-filtered COD (CODfilt) of 1900±190 mgl?1). With hydraulic retention times (HRTs) of 12–18 h the thermophilic ASP and thermophilic SCBP

J. Suvilampi; A. Lehtomäki; J. Rintala

2003-01-01

280

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

NASA Astrophysics Data System (ADS)

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

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

2012-10-01

281

The Lanzarote Geodynamic Laboratory: new capabilities for monitoring of volcanic activity at Canary Islands  

NASA Astrophysics Data System (ADS)

The volcanic island of Lanzarote is located at the northeastern end of the Canary Islands. Together with Fuerteventura Island, Lanzarote constitutes the emergent part of the East Canary Ridge, which presents a NNE-SSW volcanic alignment. Last eruptive events took place in 1824 and during the period 1730-1736, which is the largest to occur in the archipelago and throw out about 1.3 km3 of volcanic materials. The Lanzarote Geodynamic Laboratory (LGL) was created in 1986 with the idea of making Lanzarote as a natural laboratory to carry out studies in order to acquire more knowledge about its origin, present status and evolution (Vieira et al., 1991; 2006). The LGL has a multidisciplinary scientific purpose and, among others, various objectives are devoted to investigate mass distribution in the Earth system and surface displacements associated to volcanic and/or seismic activity in the island. The influence of LGL is extended throughout the whole geographical area of Lanzarote, including small islands located at the north. The laboratory has 3 observing modules distributed along the island according to its infrastructure and scientific objectives, where more than 70 sensors are recording continuously gravity variations, ground deformations, sea level, seismic activity, meteorological parameters, etc. All these observations are supplemented by periodic measurement of geodetic and geophysical networks that allow us to make studies at local, insular and regional scales. The application of geodetic and geophysical techniques to identify geodynamic signals related to volcanic processes is then a permanent research activity of the laboratory. Nowadays, this fact becomes more interesting due to the ongoing volcanic eruption that is taking place in other island of the Canary Archipelago, El Hierro, since past July 2011. That is, the multidisciplinary research carry on up to now at the LGL allow us to apply multiparameter observations of different kinds of volcanic manifestations at the surface level, and to compare geodynamic processes associated with an active area of the Earth's crust. In turn, the results obtained can provide new inputs for studying precursor of volcanic activity and also contribute to volcanic hazard mitigation. The LGL aims to be a permanent status of renewal, using new technologies for data recording and real time transmission, as well as for testing new sensors, scientific equipment and observational techniques related to monitoring and observation of volcanic activity. All these capabilities are necessary when high-resolution ground based observations must provide us the basis for studying the sources of volcanic deformation. The laboratory is thus open to support and to enhance the collaboration among scientists, as well as national and international institutions involved in research at active volcanic areas.

Arnoso, J.; Vélez, E. J.; Soler, V.; Montesinos, F. G.; Benavent, M.

2012-04-01

282

Metacognitive activity in the physics student laboratory: Is increased metacognition necessarily better?  

NSDL National Science Digital Library

In this study natural-in-action metacognitive activity during the student laboratory in university physics is explored, with an aim towards quantifying the amount of metacognition used by the students. The study investigates whether quantifying natural-in-action metacognition is possible and valuable for examining teaching and learning in these contexts. Video recordings of student groups working during three types of introductory physics laboratories were transcribed and then coded using a coding scheme developed from related research on mathematical problem solving. This scheme identifies a groupâs general behaviour and metacognitive activity. The study recognizes that reliably identifying metacognition is challenging, and steps are taken to improve reliability. Results suggest that a greater amount of metacognition does not appear to improve studentsâ success in the laboratoryâwhat appears to matter is whether the metacognition causes students to change behaviour. This study indicates that it is important to consider the outcome of metacognition, not just the amount.

Kung, Rebecca L.; Linder, Cedric J.

2012-05-28

283

Women in Engineering; Hands-On Classes Jumpstart a Career; Lasers and Photonics  

NSDL National Science Digital Library

The ATETV project delivers web-based videos to connect students to careers in advanced technology. This episode of ATETV examines women in technical fields including engineering and lasers / photonics and how hands-on classwork can lead to more success after graduation. The video can be viewed whole or in three segments: "Women in Technology: Engineering," "Hands-On Classes Jumpstart a Career," and "Women Study Lasers and Photonics." The running time for the full episode is 8:53.

2010-12-01

284

Comparative study of laboratory-scale thermophilic and mesophilic activated sludge processes  

Microsoft Academic Search

Laboratory-scale mesophilic (20–35°C) and thermophilic (55°C) activated sludge processes (ASPs) treating diluted molasses wastewater were compared in effluent quality, removal of different COD fractions, sludge yield, floc size, and sludge settleability. The effect of polyaluminium chloride (PAC) with high cationic charge on sludge settleability and effluent quality was also studied. In the ASPs, the hydraulic retention time was 12h in

J. Suvilampi; A. Lehtomäki; J. Rintala

2005-01-01

285

Overview of the Air Force Research Laboratory laser applications group active imaging programs  

NASA Astrophysics Data System (ADS)

The Air Force Research Laboratory laser applications group, also known as 'Scorp Works' has been developing user specific, active illumination systems for the past 8 years. A survey of some of these programs will be presented. Programs to be included are the covet adjustable laser illuminator, the Coast Guard search and rescue laser systems, a camera automated tracking system, and a 1.5 ?m covert camera and illuminator.

Cooley, William T.; Gurney, Matthew L.; Dodd, Patrick R.; Griffy, Barton W.; Kelly, John M.; Pressnall, Tim A.

1999-07-01

286

Energetic materials research and development activities at Sandia National Laboratories supported under DP-10 programs  

SciTech Connect

This report provides summary descriptions of Energetic Materials (EM) Research and Development activities performed at Sandia National Laboratories and funded through the Department of Energy DP-10 Program Office in FY97 and FY98. The work falls under three major focus areas: EM Chemistry, EM Characterization, and EM Phenomenological Model Development. The research supports the Sandia component mission and also Sandia's overall role as safety steward for the DOE Nuclear Weapons Complex.

Ratzel, A.C. III

1998-09-01

287

UnCommon Knowledge: Projects That Help Middle-School-Age Youth Discover the Science and Mathematics in Everyday Life. Volume One: Hands-On Science Projects.  

ERIC Educational Resources Information Center

This guide contains hands-on science activities to connect middle-school students to the traditional knowledge of their grandparents and elders. Because girls often lose interest in science at the middle-school level, and because women in some communities (especially in rural areas) are seldom involved in work with an obvious science basis, the…

Carter, Carolyn S.; Keyes, Marian; Kusimo, Patricia S.; Lunsford, Crystal

288

UnCommon Knowledge: Projects That Help Middle-School-Age Youth Discover the Science and Mathematics in Everyday Life. Volume Two: Hands-On Math Projects.  

ERIC Educational Resources Information Center

This guide contains hands-on mathematics activities to connect middle-school students to the traditional knowledge of their grandparents and elders. Because girls often lose interest in math at the middle-school level, and because women in some communities (especially in rural areas) are seldom involved in work with an obvious math basis, the…

Carter, Carolyn S.; Cohen, Sara; Keyes, Marian; Kusimo, Patricia S.; Lunsford, Crystal

289

An evaluation of two hands-on lab styles for plant biodiversity in undergraduate biology.  

PubMed

We compared learning cycle and expository formats for teaching about plant biodiversity in an inquiry-oriented university biology lab class (n = 465). Both formats had preparatory lab activities, a hands-on lab, and a postlab with reflection and argumentation. Learning was assessed with a lab report, a practical quiz in lab, and a multiple-choice exam in the concurrent lecture. Attitudes toward biology and treatments were also assessed. We used linear mixed-effect models to determine impacts of lab style on lower-order cognition (LO) and higher-order cognition (HO) based on Bloom's taxonomy. Relative to the expository treatment, the learning cycle treatment had a positive effect on HO and a negative effect on LO included in lab reports; a positive effect on transfer of LO from the lab report to the quiz; negative impacts on LO quiz performance and on attitudes toward the lab; and a higher degree of perceived difficulty. The learning cycle treatment had no influence on transfer of HO from lab report to quiz or exam; quiz performance on HO questions; exam performance on LO and HO questions; and attitudes toward biology as a science. The importance of LO as a foundation for HO relative to these lab styles is addressed. PMID:25185232

Basey, John M; Maines, Anastasia P; Francis, Clinton D; Melbourne, Brett

2014-01-01

290

``Teachers Touch the Sky": A one-week hands on workshop in astronomy  

NASA Astrophysics Data System (ADS)

``Teachers Touch the Sky" (TTS) is a one week, hands-on workshop in astronomy for teachers in grades 4-8. In its fifth year, TTS was developed under the NASA IDEAS program. Offering a comfortable approach to science, the workshop shows the teachers how to enable their students to become "mini-investigators". The week offers a combination of lectures by JPL scientists and engineers and experiments that the teachers practice for classroom use. Many of the experiments are derived from the Great Explorations in Math and Science (GEMS) series developed by the Lawrence Hall of Science of the University of California at Berkeley. This year the themes of the workshop were expanded to include two of NASA's thrusts: Origins and the Exploration of Mars. The workshop in August 1998 was the first to include computer activities. We found that computers can be used successfully in the classroom if two conditions are met. First, computers must be used only as an adjunct to actual experimentation and paper learning. Second, computer programs must be prepared by, and set up by, individuals who are both highly computer literate, and knowledgeable about the background subject. Work funded by NASA.

Buratti, B. J.; Hillier, J.; Tryka, K. A.; Lavely, D.; Nercessian, P.

1998-09-01

291

An Evaluation of Two Hands-On Lab Styles for Plant Biodiversity in Undergraduate Biology  

PubMed Central

We compared learning cycle and expository formats for teaching about plant biodiversity in an inquiry-oriented university biology lab class (n = 465). Both formats had preparatory lab activities, a hands-on lab, and a postlab with reflection and argumentation. Learning was assessed with a lab report, a practical quiz in lab, and a multiple-choice exam in the concurrent lecture. Attitudes toward biology and treatments were also assessed. We used linear mixed-effect models to determine impacts of lab style on lower-order cognition (LO) and higher-order cognition (HO) based on Bloom's taxonomy. Relative to the expository treatment, the learning cycle treatment had a positive effect on HO and a negative effect on LO included in lab reports; a positive effect on transfer of LO from the lab report to the quiz; negative impacts on LO quiz performance and on attitudes toward the lab; and a higher degree of perceived difficulty. The learning cycle treatment had no influence on transfer of HO from lab report to quiz or exam; quiz performance on HO questions; exam performance on LO and HO questions; and attitudes toward biology as a science. The importance of LO as a foundation for HO relative to these lab styles is addressed. PMID:25185232

Maines, Anastasia P.; Francis, Clinton D.; Melbourne, Brett

2014-01-01

292

Assessment of physical activity with the Computer Science and Applications, Inc., accelerometer: laboratory versus field validation.  

PubMed

Our purpose was to compare the validity of the Computer Science and Applications, (CSA) Inc., accelerometer in laboratory and field settings and establish CSA count ranges for light, moderate, and vigorous physical activity. Validity was determined in 60 adults during treadmill exercise, using oxygen consumption (VO2) as the criterion measure, while 30 adults walked and jogged outdoors on a 400-m track. The relationship between CSA counts and VO2 was linear (R2 = .89 SEE = 3.72 ml.kg-1.min-1), as was the relationship between velocity and counts in the field (R2 = .89, SEE = 0.89 mi.hr-1). However, significant differences were found (p < .05) between laboratory and field measures of CSA counts for light and vigorous intensity. We conclude that the CSA can be used to quantify walking and jogging outdoors on level ground; however, laboratory equations may not be appropriate for use in field settings, particularly for light and vigorous activity. PMID:10763519

Nichols, J F; Morgan, C G; Chabot, L E; Sallis, J F; Calfas, K J

2000-03-01

293

DIVERSE ACTIVE WELL NEUTRON COINCIDENCE COUNTER UTILITY AT THE SAVANNAH RIVER NATIONAL LABORATORY  

SciTech Connect

In this paper we describe use of the Aquila active well neutron coincidence counter for nuclear material assays of {sup 235}U in multiple analytical techniques at Savannah River Site (SRS), at the Savannah River National Laboratory (SRNL), and at Argonne West National Laboratory (AWNL). The uses include as a portable passive neutron counter for field measurements searching for evidence of {sup 252}Cf deposits and storage; as a portable active neutron counter using an external activation source for field measurements searching for trace {sup 235}U deposits and holdup; for verification measurements of U-Al reactor fuel elements; for verification measurements of uranium metal; and for verification measurements of process waste of impure uranium in a challenging cement matrix. The wide variety of uses described demonstrate utility of the technique for neutron coincidence verification measurements over the dynamic ranges of 100 g-5000 g for U metal, 200 g-1300 g for U-Al, and 8 g-35 g for process waste. In addition to demonstrating use of the instrument in both the passive and active modes, we also demonstrate its use in both the fast and thermal neutron modes.

Dewberry, R; Saleem Salaymeh, S

2007-01-08

294

An overview of environmental surveillance of waste management activities at the Idaho National Engineering Laboratory  

USGS Publications Warehouse

The Idaho National Engineering Laboratory (INEL), in southeastern Idaho, is a principal center for nuclear energy development for the Department of Energy (DOE) and the U.S. Nuclear Navy. Fifty-two reactors have been built at the INEL, with 15 still operable. Extensive environmental surveillance is conducted at the INEL by DOE's Radiological Environmental Sciences Laboratory (RESL), and the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), EG&G Idaho, Inc., and Westinghouse Idaho Nuclear Company (WINCO). Surveillance of waste management facilities radiation is integrated with the overall INEL Site surveillance program. Air, warer, soil, biota, and environmental radiation are monitored or sampled routinely at INEL. Results to date indicate very small or no impacts from INEL on the surrounding environment. Environmental surveillance activities are currently underway to address key environmental issues at the INEL.

Smith, T.H.; Chew, E.W.; Hedahl, T.G.; Mann, L.J.; Pointer, T.F.; Wiersma, G.B.

1986-01-01

295

Electrocardiograhic findings resulting in inappropriate cardiac catheterization laboratory activation for ST-segment elevation myocardial infarction  

PubMed Central

Background Prompt reperfusion has been shown to improve outcomes in patients with acute ST-segment elevation myocardial infarction (STEMI) with a goal of culprit vessel patency in <90 minutes. This requires a coordinated approach between the emergency medical services (EMS), emergency department (ED) and interventional cardiology. The urgency of this process can contribute to inappropriate cardiac catheterization laboratory (CCL) activations. Objectives One of the major determinants of inappropriate activations has been misinterpretation of the electrocardiogram (ECG) in the patient with acute chest pain. Methods We report the ECG findings for all CCL activations over an 18-month period after the inception of a STEMI program at our institution. Results There were a total of 139 activations with 77 having a STEMI diagnosis confirmed and 62 activations where there was no STEMI. The inappropriate activations resulted from a combination of atypical symptoms and misinterpretation of the ECG (45% due to anterior ST-segment elevation) on patient presentation. The electrocardiographic abnormalities were particularly problematic in African-Americans with left ventricular hypertrophy. Conclusions In this single-center, prospective observational study, nearly half of the inappropriate STEMI activations were due to the misinterpretation of anterior ST-segment elevation and this finding was commonly seen in African-Americans with left ventricular hypertrophy. PMID:25009790

Shamim, Shariq; McCrary, Justin; Wayne, Lori; Gratton, Matthew

2014-01-01

296

Laboratory investigation on the different activation mechanisms for aluminum and zinc anodes in sea water environment  

NASA Astrophysics Data System (ADS)

Cathodic protection (CP) is one practical and economical corrosion control option used to protect steel structures. The common sacrificial anodes used for CP system are aluminum (AL), and zinc (Zn) and their alloys. These three metals and their alloys can provide the starting basis for steel protection in sea water environment. actually many sacrificial anodes (SA) activation processes are widely used to improve the performance protection of steel . Based on the finding and the analysis of the results the aluminum and its alloys should be activated by the activation element rather than by cold working. However, activating the zinc and its alloys provides some improvement in the anode performance and could be considered as a reliable activation mechanism similar to the activation by alloying addition to zinc of similar purity. Finally, this paper discusses the use of cold working as a new activation mechanism, by using extensive laboratory investigation under simulated environmental conditions, and anode current capacity, polarization corrosion rates and protection ability were determined and discussed for this study.

basir, Ali. EL.; Elazhari, Omar A.; Shartel, K.; Esmal, M.

2013-12-01

297

Laboratory demonstration model: Active cleaning technique device. [for removal of contaminants from an optical surface  

NASA Technical Reports Server (NTRS)

The technique which utilizes exposure to a plasma to remove contaminants from a surface was incorporated into a laboratory model which demonstrates active cleaning by both plasma cleaning and ion sputtering modes of operation. The development phase is reported and includes discussion of the plasma tube configuration, device design, and performance tests. A general description of the active cleaning device is provided which includes information on the main power/plasma discharge sensors, and the power, gas supply, and ion accelerator systems. Development of the active cleaning species at high vacuum conditions is described and results indicate that plasma cleaning occurs in the region of a visible plume which extends from the end of the plasma tube. Recommendations are made for research to determine the plasma cleaning mechanism and the plasma species responsible for the cleaning, as well limitations on the type of contaminants that can be removed.

Shannon, R. L.; Gillette, R. B.

1974-01-01

298

The effects on community college student physics achievement and attitudes about learning physics due to inquiry-based laboratory activities versus cookbook laboratory activities  

NASA Astrophysics Data System (ADS)

The purpose of this quasi-experimental study was to determine the effects on community college student physics conceptual achievement and attitudes about learning physics due to the use of inquiry-based laboratory activities versus cookbook laboratory activities. An analysis of covariance (ANCOVA) was performed to test for differences in mean post-test Force Concept Inventory (FCI) score for two different types of physics lab instruction (IL versus CBL). Results of the ANCOVA, F (1, 35) = 0.761, p < 0.389, supported the null hypothesis that no significant difference was found in the post-test FCI scores of the two groups. An ANCOVA was performed to test for differences in mean post-test Mechanics Baseline Test (MBT) score for two different types of physics lab instruction (IL versus CBL)., however, the covariate and the dependent variable were shown to not be linearly related. Therefore, a one-way analysis of variance (ANOVA) was used to compare MBT scores. The results of the ANOVA, F (1, 36) = 0.066, p < 0.798, supported the null hypothesis that there was no significant difference in MBT scores of the two groups. A step-wise multiple linear regression was used to analyze the relationships between the FCI post-test score and the type of instruction, FCI pre-test score, and American College Test (ACT) science reasoning sub-scores. The FCI pre-test score and ACT science score were shown to be the best predictors of FCI post-test score. Another step-wise multiple linear regression was used to analyze the relationships between the MBT post-test score and type of instruction, MBT pre-test score, and ACT science reasoning sub-scores. The ACT Science sub-scores were determined to be the best predictor of MBT post-test score. An independent t-test was used to compare the mean lecture test grades for the lab groups taught using inquiry and cookbook methods. The mean lecture test scores of the inquiry-based lab group (M = 81.39, S.D. = 8.15) were found to be significantly higher, t (36) = -2.021, p < 0.0255, than the cookbook lab group (M = 75.74, S.D. = 9.07). A dependent t-test was used to compare the mean difference in Colorado Learning Attitudes about Science Survey (CLASS) percent favorable scores for the lab groups taught using inquiry and cookbook methods. Results of the t-test, t (36) = 0.897, p < 0.376, failed to reject the null hypothesis that the CLASS scores differed by lab instruction type.

Nock, George Allen Brittingham

299

We are what we do: Examining learner-generated content in the anatomy laboratory through the lens of activity theory.  

PubMed

Video and photography are often used for delivering content within the anatomical sciences. However, instructors typically produce these resources to provide instructional or procedural information. Although the benefits of learner-generated content have been explored within educational research, virtually no studies have investigated the use of learner-generated video and photograph content within anatomy dissection laboratories. This study outlines an activity involving learner-generated video diaries and learner-generated photograph assignments produced during anatomy laboratory sessions. The learner-generated photographs and videos provided instructors with a means of formative assessment and allowed instructors to identify evidence of collaborative behavior in the laboratory. Student questionnaires (n?=?21) and interviews (n?=?5), as well as in-class observations, were conducted to examine student perspectives on the laboratory activities. The quantitative and qualitative data were examined using the framework of activity theory to identify contradictions between student expectations of, and engagement with, the activity and the actual experiences of the students. Results indicate that learner-generated photograph and video content can act as a rich source of data on student learning processes and can be used for formative assessment, for observing collaborative behavior, and as a starting point for class discussions. This study stresses the idea that technology choice for activities must align with instructional goals. This research also highlights the utility of activity theory as a framework for assessing classroom and laboratory activities, demonstrating that this approach can guide the development of laboratory activities. PMID:24415581

Doubleday, Alison F; Wille, Sarah J

2014-01-01

300

Implementation of the 2013 Astro-Science Workshop, a Hands-on High Altitude Ballooning Program at the Adler Planetarium  

NASA Astrophysics Data System (ADS)

For the past 7 years, high school students participating in the Astro-Science Workshop at the Adler Planetarium have been able to access the extreme environment of near space (approximately 30 km altitude) using high altitude balloons. Taking a hands-on approach the program has allowed students to design, build, and launch their own experiments with programming based at the Adler Planetarium. During flight, payloads are subjected to temperatures of around -65° C, atmospheric pressure of only 1% that at sea level, and cosmic radiation levels more than 60 times the surface background. In some ways, conditions at these altitudes are much like those at the surface of Mars, providing students with the opportunity to build and operate real-world analogs of interplanetary probes. We have found that this hands-on, student-driven research-based program is enhanced by implementing classroom and lab activities as well as by incorporating instruction and collaboration with research professionals currently active in the field of astronomy. We present the steps taken to implement the 2013 Astro-Science Workshop at the Adler Planetarium with a focus on daily instruction and operations planning and launch preparation.

Ratliff, Gayle; Martynowycz, M. W.; Hammergren, M.

2014-01-01

301

Behavioral and Activity Assessment of Laboratory Mice (Mus musculus) after Tail Biopsy under Isoflurane Anesthesia  

PubMed Central

Contemporary laboratory animal guidance suggests that tail biopsy of laboratory mice can be performed before 21 d of age without anesthesia, whereas older mice must receive anesthesia before biopsy. Our objective was to determine whether administration of isoflurane anesthesia before tail biopsy produced a measurable effect on the behavior of mice (n = 196). We evaluated C57BL/6 and BALB/c mice at 21 to 24 (weaning), 28 to 31 (delayed weaning), and 42 to 45 (adult) d of age. Mice were observed at the time of biopsy and then twice within the first hour after a sham or tail biopsy. Anxiety-like responses were assessed by using an elevated plus-maze. Activity was evaluated remotely for 120 min. Isoflurane did not diminish acute responses to tail biopsy in mice 31 d or younger compared with sham-biopsied animals but had a significant effect in C57BL/6 biopsied adult mice. In addition, mice of all ages and strains that received anesthesia, regardless of biopsy, spent more time in the enclosed maze arms and had decreased activity up to 5 h after isoflurane exposure. Although tail biopsy should be performed in young mice to avoid transection of distal mature vertebrae, our experimental paradigm indicates that isoflurane anesthesia does not appreciably enhance wellbeing over that of mice biopsied without anesthesia at weaning ages. The influence of inhaled isoflurane was demonstrable and indicated that acute and prolonged alterations in anxiety and activity must be considered when interpreting the impact of anesthesia on tail biopsy across various ages and strains of laboratory mice. PMID:22330716

Hankenson, F Claire; Braden-Weiss, Gillian C; Blendy, Julie A

2011-01-01

302

A College-Level Inquiry-Based Laboratory Activity on Transiting Planets  

NASA Astrophysics Data System (ADS)

We have designed an inquiry-based laboratory activity on transiting extrasolar planets for an introductory college-level astronomy class. The activity was designed with the intent of simultaneously teaching science process skills and factual content about transits and light curves. In the activity, groups of two to four students each formulate a specific science question and design and carry out an investigation using a table-top model of a star and orbiting planet. Each group then presents their findings to other students in their class. In a final presentation, the instructors integrate students' findings with a summary of how measured light curves indicate properties of planetary systems. The activity debuted at Hartnell College in November 2009 and has also been adapted for a lecture-based astronomy course at U.C. Santa Cruz. We present the results of student surveys before and after the astronomy course at Hartnell and discuss how well our activity promotes students' confidence and identity as scientists, relative to traditional lab activities.

McConnell, N. J.; Medling, A. M.; Strubbe, L. E.; Moth, P.; Montgomery, R. M.; Raschke, L. M.; Hunter, L.; Goza, B. K.

2010-12-01

303

A laboratory batch reactor test for assessing nonspeciated volatile organic compound biodegradation in activated sludge.  

PubMed

The relative rates of biodegradation and stripping and volatilization of nonspeciated volatile organic compounds (VOCs) in wastewater treated with aerobic activated-sludge processes can be quantified using a newly developed procedure. This method was adapted from the original aerated draft tube reactor test that was developed to measure biodegradation rate constants for specific volatile pollutants of interest. The original batch test has been modified to include solid-phase microextraction (SPME) fibers for sampling in the gas phase. The experimental procedure using SPME fibers does not require specific identification and quantitation of individual pollutants and can be used to evaluate wastewater with multiple VOCs. To illustrate use of this procedure, laboratory experiments were conducted using biomass and wastewater or effluent from three activated-sludge treatment systems. Each experiment consisted of two trials: a stripping-only trial without biomass and a stripping plus biodegradation trial using biomass from the activated-sludge unit of interest. Data from the two trials were used to quantify the rates of biodegradation by difference. The activated-sludge systems tested were a laboratory diffused-air reactor treating refinery wastewater, a full-scale surface aerated reactor treating a petrochemical wastewater, and a full-scale diffused-air reactor treating a variety of industrial effluents. The biodegradation rate constant data from each laboratory batch experiment were used in model calculations to quantify the fraction emitted (fe) and the fraction biodegraded (fbio) for each system. The fe values ranged from a maximum of 0.01 to a maximum of 0.32, whereas fbio values ranged from a minimum of 0.40 to a minimum 0.95. Two of these systems had been previously tested using a more complicated experimental approach, and the current results were in good agreement with previous results. These results indicate that biodegradation rate constant data from this laboratory method can be successfully used to predict the fate of VOCs in field-scale treatment units, and thus could potentially be used for demonstration of compliance with wastewater VOC emission regulations. PMID:12934828

Cano, M L; Saterbak, A; van Compernolle, R; Williams, M P; Huot, M E; Rhodes, I A; Allen, C C

2003-01-01

304

Introducing Hands-on, Experiential Learning Experiences in an Urban Environmental Science Program at a Minority Serving Institution  

NASA Astrophysics Data System (ADS)

STEM education at New Jersey City University increasingly focuses on experiential, student-centered learning. The Department of Geoscience/Geography plays a significant role in developing and implementing a new Urban Environmental Science Program. The program aims at graduating highly skilled, demographically diverse students (14 % African-American and 18% Hispanic) to be employed in high-growth Earth and Environmental Science career paths, both at a technical (e.g. B.S.) as well as an educational (K-12 grade) (e.g. B.A) level. The core program, including the Earth and Environmental Science curricula is guided by partners (e.g. USDA-NRCS). The program is highly interdisciplinary and 'hands-on', focusing upon the high-tech practical skills and knowledge demanded of science professionals in the 21st century. The focus of the curriculum is on improving environmental quality in northern NJ, centering upon our urban community in Jersey City and Hudson County. Our Department is moving towards a more earth system science approach to learning. Most of our courses (e.g., Earth Surface Processes, Sedimentology/Stratigraphy, Earth Materials, Essential Methods, Historical Geology) have hands-on laboratory and/or field components. Although some of our other courses do not have formal laboratory components, research modules of many such courses (Geochemistry, Urban Environmental Issues and Policy and Environmental Geology) involve strong field or laboratory studies. The department has a wide range of analytical and laboratory capacities including a portable XRF, bench-top XRD and ICP-MS. In spring 2013, Dr. Duzgoren-Aydin was awarded $277K in Higher Education Equipment Leasing Fund monies from the University in order to establish an Environmental Teaching and Research Laboratory. The addition of these funds will make it possible for the department to increase its instrumentation capacity by adding a mercury analyzer, Ion Chromatography and C-N-S analyzer, as well as updating several laboratory facilities. Furthermore, authors have applied to the NSF-TUES grant program to purchase a particle size analyzer. Currently, the grant is pending. We have defined 4 curricular goals to enhance student learning by providing hands-on, inquiry-based learning and research experiences. 1- Develop technical/analytical knowledge and skills by using advanced analytical instrumentation; 2- Improve quantitative reasoning skills to assess the quality of data; 3- Have comprehensive educational training to improve problem solving skills; and 4- use their quantitative reasoning (Goal # 2) and problem solving skills (Goal #3) to evaluate real-world geological and environmental problems. We also give special emphasis to expected measurable outcomes for individual courses. An external evaluator will assess the effectiveness of integrating advance instrumentation into the Earth and Environmental Science curricula. We will work closely with the evaluator to ensure successful implementation of the learning objectives. Examples from the impacted courses will be presented.

Duzgoren-Aydin, N. S.; Freile, D.

2013-12-01

305

Immersive, hands-on, team-based geophysical education at the University of Texas Marine Geology and Geophysics Field Course  

NASA Astrophysics Data System (ADS)

The University of Texas Institute for Geophysics (UTIG), part of the Jackson School of Geosciences, annually offers a unique and intensive three-week marine geology and geophysics field course during the spring/summer semester intersession. Now entering its seventh year, the course transitions students from a classroom environment through real-world, hands-on field acquisition, on to team-oriented data interpretation, culminating in a professional presentation before academic and industry employer representatives. The course is available to graduate students and select upper-division undergraduates, preparing them for direct entry into the geoscience workforce or for further academic study. Geophysical techniques used include high-resolution multichannel seismic reflection, CHIRP sub-bottom profiling, multibeam bathymetry, sidescan sonar, sediment coring, grab sampling, data processing, and laboratory analysis of sediments. Industry-standard equipment, methods, software packages, and visualization techniques are used throughout the course, putting students ahead of many of their peers in this respect. The course begins with a 3-day classroom introduction to the field area geology, geophysical methods, and computing resources used. The class then travels to the Gulf Coast for a week of hands-on field and lab work aboard two research vessels: UTIG's 22-foot, aluminum hulled Lake Itasca; and NOAA's 82-foot high-speed catamaran R/V Manta. The smaller vessel handles primarily shallow, inshore targets using multibeam bathymetry, sidescan sonar, and grab sampling. The larger vessel is used both inshore and offshore for multichannel seismic, CHIRP profiling, multibeam bathymetry, gravity coring, and vibracoring. Field areas to date have included Galveston and Port Aransas, Texas, and Grand Isle, Louisiana, with further work in Grand Isle scheduled for 2014. In the field, students work in teams of three, participating in survey design, instrument set-up, field deployment, data acquisition optimization, quality control, data archival, log-keeping, real-time data processing, laboratory sediment analysis, and even boat-handling. Teams are rotated through the two vessels and the onshore field laboratory to ensure that each student has hands-on experience with each aspect of the process. Although all students work on all data areas in the field, after returning from the field each team is assigned a particular region or geologic problem to interpret. Each team prepares and presents a formal presentation to UTIG researchers and industry representatives, explaining and defending their interpretations. This unique approach to hands-on field training, real-world science, and project-based teamwork helps prepare students for direct entry into the workforce, giving them a leg up on competitors for positions. This course has an impressive success ratio to show, with many students receiving job offers directly as a result of their participation in the course.

Saustrup, S.; Gulick, S. P.; Goff, J. A.; Davis, M. B.; Duncan, D.; Reece, R.

2013-12-01

306

MRI-compatible Hands-on Cooperative Control of a Pneumatically Actuated Robot  

PubMed Central

MRI compatible robots are emerging as useful tools for image guided interventions. A shared control between a user and the MRI compatible robot makes it more intuitive instrument especially during setup phases of interventions. We present a MRI compatible, hands-on cooperative system using Innomotion robotic arm. An economic MRI compatible user input sensor was developed and its functionality was tested under typical application conditions. Performance improvement in phantom tasks shows promise of adding hands-on interface in MRI compatible robots. PMID:21423882

Kapoor, Ankur; Wood, Brad; Mazilu, Dumitru; Horvath, Keith A.; Li, Ming

2011-01-01

307

Safeguards Implementation: Establishment of Indonesian Safeguards Laboratory  

SciTech Connect

Under the International Nuclear Safeguards and Engagement Program (INSEP), U.S. National Laboratories support the Department of Energy (DOE) National Nuclear Security Administration (NNSA) to ''collaborate with international partners to strengthen international safeguards at all stages of nuclear development.'' This engagement in safeguards implementation cooperation is the basis for the security and safeguards arrangement with the Nuclear Energy Regulatory Agency of the Republic of Indonesia (BAPETEN) and includes strengthening of the State System of Accounting for and Control of Nuclear Material (SSAC). There are many components in a robust SSAC. While INSEP carries on its program in a holistic approach, it is more effective and efficient to address individual components, rather than the entire system at one time, with the objective of strengthening the system as a whole. Nuclear material accountancy is one of these components. Nuclear material accountancy necessitates that a State periodically take an inventory of its material and record changes. To better perform these activities, BAPETEN requested assistance with establishing a safeguards laboratory where its staff could perform independent material characterization, maintain nondestructive assay equipment, and facilitate hands-on training of BAPETEN safeguards inspectors. In compliance with International Atomic Energy Agency (IAEA) guidelines and safety series documents, INSEP and BAPETEN opened the BAPETEN Safeguards Laboratory in February 2010 to provide these competencies. BAPETEN showcased these new capabilities in July 2010 at the IAEA-sponsored Regional Workshop on Nuclear Material Accounting and Control at Facilities where hands-on activities were held at BAPETEN's Headquarters in Jakarta using the equipment supplied by INSEP. Discussions have begun on the establishment of a security and safeguards laboratory at the BAPETEN Training Center located in Cisarua. This paper describes the many steps involved with the Safeguards Laboratory Implementation Plan from its drafting in August 2007 to the completion of the laboratory in February 2010.

Shipwash, Jacqueline L [ORNL] [ORNL; Geist, William H. [Los Alamos National Laboratory (LANL)] [Los Alamos National Laboratory (LANL); Smith, Steven E [ORNL] [ORNL; Solodov, Alexander A [ORNL] [ORNL; Suharyanta, Suharyanta [ORNL] [ORNL; Sunaryadi, Dedi [ORNL] [ORNL

2011-01-01

308

Effects of activity and energy budget balancing algorithm on laboratory performance of a fish bioenergetics model  

USGS Publications Warehouse

We evaluated the performance of the Wisconsin bioenergetics model for lake trout Salvelinus namaycush that were fed ad libitum in laboratory tanks under regimes of low activity and high activity. In addition, we compared model performance under two different model algorithms: (1) balancing the lake trout energy budget on day t based on lake trout energy density on day t and (2) balancing the lake trout energy budget on day t based on lake trout energy density on day t + 1. Results indicated that the model significantly underestimated consumption for both inactive and active lake trout when algorithm 1 was used and that the degree of underestimation was similar for the two activity levels. In contrast, model performance substantially improved when using algorithm 2, as no detectable bias was found in model predictions of consumption for inactive fish and only a slight degree of overestimation was detected for active fish. The energy budget was accurately balanced by using algorithm 2 but not by using algorithm 1. Based on the results of this study, we recommend the use of algorithm 2 to estimate food consumption by fish in the field. Our study results highlight the importance of accurately accounting for changes in fish energy density when balancing the energy budget; furthermore, these results have implications for the science of evaluating fish bioenergetics model performance and for more accurate estimation of food consumption by fish in the field when fish energy density undergoes relatively rapid changes.

Madenjian, Charles P.; David, Solomon R.; Pothoven, Steven A.

2012-01-01

309

Characterization of the Activity and Stability of Amylase from Saliva and Detergent: Laboratory Practicals for Studying the Activity and Stability of Amylase from Saliva and Various Commercial Detergents  

ERIC Educational Resources Information Center

This article presents two integrated laboratory exercises intended to show students the role of [alpha]-amylases (AAMYs) in saliva and detergents. These laboratory practicals are based on the determination of the enzymatic activity of amylase from saliva and different detergents using the Phadebas test (quantitative) and the Lugol test…

Valls, Cristina; Rojas, Cristina; Pujadas, Gerard; Garcia-Vallve, Santi; Mulero, Miquel

2012-01-01

310

Activation of Wnt Signaling Using Lithium Chloride: Inquiry-Based Undergraduate Laboratory Exercises  

PubMed Central

Abstract Zebrafish provide researchers and students alike with an excellent model of vertebrate nervous system development due to a high degree of conserved developmental mechanisms and transparent embryos that develop in synchrony. In these laboratory exercises, undergraduate students explore cell biological concepts while performing hypothesis-driven novel research utilizing methodologies such as immunofluorescence, confocal microscopy, image analysis, pharmacology, and basic statistics. In the first block of exercises, students perform anti-acetylated tubulin (anti-AT) immunofluorescence, identify spinal tracts and neuronal subtypes, and perform conventional and confocal microscopy. Building on knowledge acquired in the first block of exercises, during the second block, students subsequently perform pharmacological activation of Wnt signaling through lithium chloride treatments, and assess nervous system integrity through anti-AT immunofluorescence. Students perform various quantitative methods and apply statistics to determine outcomes of Wnt activation. In their final laboratory report, students contextualize their results with foundations of molecular mechanisms of nervous system development. In sum, these exercises offer undergraduate students a model of independent research at the graduate level. PMID:23098089

Ross, Andrew William

2012-01-01

311

9.02 Brain Laboratory, Spring 2002  

E-print Network

Consists of a series of hands-on laboratories designed to give students experience with common techniques for conducting neuroscience research. Included are sessions on anatomical, ablation, neurophysiological, and computer ...

Miller, Earl

312

Developing Physics Concepts through Hands-On Problem Solving: A Perspective on a Technological Project Design  

ERIC Educational Resources Information Center

In a contest featuring hands-on projects, college students were required to design a simple crawling worm using planning, self-monitoring and self-evaluation processes to solve contradictive problems. To enhance the efficiency of problem solving, one needs to practice meta-cognition based on an application of related scientific concepts. The…

Hong, Jon-Chao; Chen, Mei-Yung; Wong, Ashley; Hsu, Tsui-Fang; Peng, Chih-Chi

2012-01-01

313

Systems analysis programs for hands-on integrated reliability evaluations (SAPHIRE), Version 5.0  

Microsoft Academic Search

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) refers to a set of several microcomputer programs that were developed to create and analyze probabilistic risk assessments (PRAs), primarily for nuclear power plants. The Graphical Evaluation Module (GEM) is a special application tool designed for evaluation of operational occurrences using the Accident Sequence Precursor (ASP) program methods. GEM provides

K. D. Russell; K. J. Kvarfordt; C. L. Hoffman

1995-01-01

314

Wrap up final projects Hands-on Unix system administration DeCal  

E-print Network

Lab 11 Wrap up final projects Hands-on Unix system administration DeCal 2012-11-19 Important note more accurately, renting?) and connecting a hard drive inside a physical computer · setting up the installer image -- this is equivalent to putting the OS installer CD inside a physical computer's CD drive

Walker, Matthew P.

315

Nine Performance Procedure Competencies with Which to Analyze, Organize, and Develop Hands-On Performance Evaluation.  

ERIC Educational Resources Information Center

This document contains a number of processes and criteria levels with which the progressive test writer should be familiar in order to measure more than cognitive success. These processes allow test writers to examine existing paper and pencil examinations in order to sound out implications for performance testing. Hands-on performance testing is…

Alvir, Howard P.

316

Scientific visualization hands-on session: discrete surfaces Pascal Frey, Chantal Oberson Ausoni  

E-print Network

Scientific visualization hands-on session: discrete surfaces Pascal Frey, Chantal Oberson Ausoni reconstruction of a portion of a surface associated with a triangle T or a collection of triangles. Then, we on S and : (1) the only information available about S is the list of triangles composing the triangulation

Frey, Pascal

317

Performance Assessments in Science: Hands-On Tasks and Scoring Guides.  

ERIC Educational Resources Information Center

In 1992, RAND received a grant from the National Science Foundation to study the technical quality of performance assessments in science and to evaluate their feasibility for use in large-scale testing programs. The specific goals of the project were to assess the reliability and validity of hands-on science testing and to investigate the cost and…

Stecher, Brian M.; Klein, Stephen P.

318

Hands-on Verification of Mechanics Training: A Cost-Effectiveness Study of Videodisc Simulation.  

ERIC Educational Resources Information Center

This document reports the results of a study on the feasibility of training smog check mechanics in California via hands-on verification of mechanics' ability to inspect and repair vehicles. The reviews of the research literature that compare the learning effectiveness of different delivery media tend to support the position that in learning, the…

Maher, Thomas G.

319

The Microprocessor as a Microcosm: A Hands-On Approach to VLSI Design Education  

E-print Network

The Microprocessor as a Microcosm: A Hands-On Approach to VLSI Design Education David Harris David_Harris@hmc.edu November 2002 Harvey Mudd College Claremont, CA #12;Microprocessor as Microcosm David Harris Page 2 of 19 Conclusion #12;Microprocessor as Microcosm David Harris Page 3 of 19 Introduction Changing face of Very Large

Harris, David Money

320

Improved Student Learning of Microprocessor Systems Through Hands-On and Online Experience  

E-print Network

Improved Student Learning of Microprocessor Systems Through Hands-On and Online Experience Dr is presented to assess and improve the understanding of microprocessor systems for electrical and computer assessed the level of understanding of microprocessor systems on a control group using five learning

LaMeres, Brock J.

321

Implementing Hands-On Science in the Elementary Schools: A District-Wide Approach.  

ERIC Educational Resources Information Center

Describes a National Science Foundation (NSF)-funded project in which hands-on science became the predominant mode of instruction in a school district. Explores the effectiveness of the program and its implications for the future and the science supervisor. (KHR)

Shapley, Kelly S.; Luttrell, H. Dale

1992-01-01

322

Students Doing Chemistry: A Hand-On Experience for K-12  

ERIC Educational Resources Information Center

A hands-on, minds-on inquiry chemistry experiment was developed for use in K-12 schools that enables students to combine the chemicals of their choice and observe the results. The chemistry involved is water based and builds upon acid-base, double displacement, and iodometric detection of starch reactions. Chemicals readily available in the…

Selco, Jodye I.; Bruno, Mary; Chan, Sue

2012-01-01

323

Introduction to Density Functional Theory: Calculations by Hand on the Helium Atom  

ERIC Educational Resources Information Center

Density functional theory (DFT) is a type of electronic structure calculation that has rapidly gained popularity. In this article, we provide a step-by-step demonstration of a DFT calculation by hand on the helium atom using Slater's X-Alpha exchange functional on a single Gaussian-type orbital to represent the atomic wave function. This DFT…

Baseden, Kyle A.; Tye, Jesse W.

2014-01-01

324

Introducing Hands-On Experience to a Massive Open Online Course on openHPI  

E-print Network

Introducing Hands-On Experience to a Massive Open Online Course on openHPI Christian Willems.jasper@student.hpi.uni-potsdam.de Abstract-- Massive Open Online Courses (MOOCs) have be- come the trending topic in e-learning. Many assessment, TCP/IP, e-mail, DNS. I. INTRODUCTION Starting from 2011, a new concept of Massive Open Online

Weske, Mathias

325

Hands-on Learning At CU, students learn by doing. In the department of Civil,  

E-print Network

of faculty-student interactions, both inside and outside the classroom. "The hands-on projects I've done and Management Using technical and management skills, construction engineers turn designs into reality -- on time, and project management. This discipline involves organizing a wide variety of skilled workers and specialists

326

A Hands-On Freshman Survey Course to Steer Undergraduates into Microsystems Coursework and Research  

ERIC Educational Resources Information Center

Full class loads and inflexible schedules can be a significant obstacle in the implementation of freshman survey courses designed to guide engineering students into emerging research areas such as micro- and nanosystems. A hands-on, interactive course was developed to excite freshmen early in their engineering program to pursue research and…

Eddings, M. A.; Stephenson, J. C.; Harvey, I. R.

2009-01-01

327

Lab 04: Package management Hands-on Unix system administration DeCal  

E-print Network

Lab 04: Package management Hands-on Unix system administration DeCal 2012-02-13, due 2012-02-27 Building a Debian package Debian has a robust binary package management system, and in almost all cases more flexibility: · use a newer version of package which is unavailable in the repositories (hasn't yet

Walker, Matthew P.

328

Hands-On Teaching through a Student Field Project in Applied Geophysics.  

ERIC Educational Resources Information Center

Describes the Proffit Mountain project, part of a senior-level class in applied geophysics that provides students with hands-on experience in applying principles and techniques learned in class. Students conduct magnetic, gravity, and radiometric studies over a diabase body which intrudes rhyolite at Proffitt Mountain in southeast Missouri.…

Klasner, John Samuel; Crockett, Jeffrey Jon; Horton, Kimberly Beth; Poe, Michele Daun; Wollert, Matthew Todd

1992-01-01

329

Hands-on Summer Camp to Attract K-12 Students to Engineering Fields  

ERIC Educational Resources Information Center

This paper explains the organization and execution of a summer engineering outreach camp designed to attract and motivate high school students as well as increase their awareness of various engineering fields. The camp curriculum included hands-on, competitive design-oriented engineering projects from several disciplines: the electrical,…

Yilmaz, Muhittin; Ren, Jianhong; Custer, Sheryl; Coleman, Joyce

2010-01-01

330

Hands-On Science Mysteries for Grades 3-6: Standards-Based Inquiry Investigations  

ERIC Educational Resources Information Center

In "Hands-On Science Mysteries for Grades 3-6," the authors connect science to real-world situations by investigating actual mysteries and phenomena, such as the strange heads on Easter Island, the ghost ship "Mary Celeste," and the "Dancing Stones" of Death Valley. The labs are designed to encourage the development of science inquiry, in which…

Taris, James Robert; Taris, Louis James

2006-01-01

331

A Mechanical Apparatus for Hands-On Experience with the Morse Potential  

ERIC Educational Resources Information Center

A simple pulley apparatus is described that gives the student hands-on experience with the Morse potential. Students develop an internalized sense of what a covalent bond would feel like if atoms in a molecule could be manipulated by hand. This kinesthetic learning enhances the student's understanding and intuition of several chemical phenomena.…

Everest, Michael A.

2010-01-01

332

Understanding the Effects of Cognitive Dissonance during Interpretation: Implications for "Hands-On" Programming.  

ERIC Educational Resources Information Center

Describes a field experiment that was designed to test the effects of three different interpretive programs on students' attitudes toward live, nonpoisonous snakes. One of the treatments measured the effectiveness of using "hands-on" interpretive techniques. Direct contact with snakes improved students' attitudes but only slightly. Females'…

Morgan, Mark

1996-01-01

333

International Space Station: K-5 Hands-on Science and Math Lesson Plans.  

ERIC Educational Resources Information Center

The Space Station is already capturing the imaginations of American students, encouraging them to pursue careers in the sciences. The idea of living and working in space continues to spark this renewed interest. The material in this guide was developed to provide hands-on experiences in science and math in the context of an International Space…

Boeing Co., Huntsville, AL.

334

International Space Station: 6-8 Hands-on Science and Math Lesson Plans.  

ERIC Educational Resources Information Center

These lesson plans, designed for grades 6-8, have been developed to provide a guide to hands-on experience in science and math. They focus on an International Space Station and are designed for use with students working in groups. The three lesson plans highlighting the importance of the scientific method are: (1) International Space Station…

Armstrong, Pat

335

SEQUESTRATION OF METALS IN ACTIVE CAP MATERIALS: A LABORATORY AND NUMERICAL EVALUATION  

SciTech Connect

Active capping involves the use of capping materials that react with sediment contaminants to reduce their toxicity or bioavailability. Although several amendments have been proposed for use in active capping systems, little is known about their long-term ability to sequester metals. Recent research has shown that the active amendment apatite has potential application for metals contaminated sediments. The focus of this study was to evaluate the effectiveness of apatite in the sequestration of metal contaminants through the use of short-term laboratory column studies in conjunction with predictive, numerical modeling. A breakthrough column study was conducted using North Carolina apatite as the active amendment. Under saturated conditions, a spike solution containing elemental As, Cd, Co, Se, Pb, Zn, and a non-reactive tracer was injected into the column. A sand column was tested under similar conditions as a control. Effluent water samples were periodically collected from each column for chemical analysis. Relative to the non-reactive tracer, the breakthrough of each metal was substantially delayed by the apatite. Furthermore, breakthrough of each metal was substantially delayed by the apatite compared to the sand column. Finally, a simple 1-D, numerical model was created to qualitatively predict the long-term performance of apatite based on the findings from the column study. The results of the modeling showed that apatite could delay the breakthrough of some metals for hundreds of years under typical groundwater flow velocities.

Dixon, K.; Knox, A.

2012-02-13

336

Systems Analysis Programs for Hands-on Intergrated Reliability Evaluations (SAPHIRE) Summary Manual  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer (PC) running the Microsoft Windows operating system. SAPHIRE is primarily funded by the U.S. Nuclear Regulatory Commission (NRC) and developed by the Idaho National Laboratory (INL). INL's primary role in this project is that of software developer and tester. However, INL also plays an important role in technology transfer by interfacing and supporting SAPHIRE users, who constitute a wide range of PRA practitioners from the NRC, national laboratories, the private sector, and foreign countries. SAPHIRE can be used to model a complex system’s response to initiating events and quantify associated consequential outcome frequencies. Specifically, for nuclear power plant applications, SAPHIRE can identify important contributors to core damage (Level 1 PRA) and containment failure during a severe accident which lead to releases (Level 2 PRA). It can be used for a PRA where the reactor is at full power, low power, or at shutdown conditions. Furthermore, it can be used to analyze both internal and external initiating events and has special features for transforming an internal events model to a model for external events, such as flooding and fire analysis. It can also be used in a limited manner to quantify risk in terms of release consequences to the public and environment (Level 3 PRA). SAPHIRE also includes a separate module called the Graphical Evaluation Module (GEM). GEM is a special user interface linked to SAPHIRE that automates the SAPHIRE process steps for evaluating operational events at commercial nuclear power plants. Using GEM, an analyst can estimate the risk associated with operational events (for example, to calculate a conditional core damage probability) very efficiently and expeditiously. This report provides an overview of the functions available in SAPHIRE and presents general instructions for using the software. Section 1 presents SAPHIRE’s historical evolution and summarizes its capabilities. Section 2 presents instructions for installing and using the code. Section 3 explains the database structure used in SAPHIRE and discusses database concepts. Section 4 explains how PRA data (event frequencies, human error probabilities, etc.) can be generated and manipulated using “change sets.” Section 5 deals with fault tree operations, including constructing, editing, solving, and displaying results. Section 6 presents operations associated with event trees, including rule application for event tree linking, partitioning, and editing sequences. Section 7 presents how accident sequences are generated, solved, quantified, and analyzed. Section 8 discusses the functions available for performing end state analysis. Section 9 explains how to modify data stored in a SAPHIRE database. Section 10 illustrates how to generate and customize reports. Section 11 covers SAPHIRE utility options to perform routine functions such as defining constant values, recovering databases, and loading data from external sources. Section 12 provides an overview of GEM’s features and capabilities. Finally, Section 13 summarizes SAPHIRE’s quality assurance process.

C. L. Smith

2008-08-01

337

An Overview of Science Education and Outreach Activities at the Princeton Plasma Physics Laboratory  

NASA Astrophysics Data System (ADS)

As a Department of Energy Laboratory, the Princeton Plasma Physics Laboratory (PPPL) has an energetic science education program and outreach effort. This overview describes the components of the programs and evaluates this effort during the last several years. The primary goal is to inform the public regarding the fusion and plasma research at PPPL and to excite students so that they can appreciate science and technology. The public's interest in science can be raised by news media publicity, tours, summer research experiences, in-classroom presentations, plasma expos, teacher workshops, printed and web-based materials. The ultimate result of this effort is a better-informed public, as well as an increase in the number of women and minorities who choose science as a vocation. Measuring the results is difficult, but current metrics are reviewed. The science education and outreach programs are supported by a dedicated core group of individuals and supplemented by PPPL staff, friends and family members who help with various outreach and educational activities. Supported by U. S. DOE Contract DE-AC02-76CH03073/ab

Delooper, J.

2005-10-01

338

An Overview of Science Education and Outreach Activities at the Princeton Plasma Physics Laboratory  

NASA Astrophysics Data System (ADS)

As a Department of Energy Laboratory, the Princeton Plasma Physics Laboratory (PPPL) has an energetic science education program and outreach effort. This overview describes the components of the programs and evaluates the changes that have occurred in this effort during the last several years. Efforts have been expanded to reach more students, as well as the public in general. The primary goal is to inform the public regarding the fusion and plasma research at PPPL and to excite students so that they can appreciate science and technology. A student’s interest in science can be raised by tours, summer research experiences, in-classroom presentations, plasma expos, teacher workshops and web-based materials. The ultimate result of this effort is a better-informed public, as well as an increase in the number of women and minorities who choose science as a vocation. Measuring the results is difficult, but current metrics are reviewed. The science education and outreach programs are supported by a dedicated core group of individuals and supplemented by other members of the PPPL staff and consultants who perform various outreach and educational activities. Supported by U. S. DOE Contract DE-AC02-76CH03073

Delooper, John; Demeo, Anthony; Lucas, Pamela; Post-Zwicker, Andrew; Phillips, Carol; Ritter, Christine; Morgan, James; Wieser, Patti; Percival, Autumn

2000-10-01

339

A Comprehensive Approach to Partnering Scientists with Education and Outreach Activities at a National Laboratory  

NASA Astrophysics Data System (ADS)

With the establishment of an Office of Education and Outreach (EO) in 2000 and the adoption of a five-year EO strategic plan in 2001, the University Corporation for Atmospheric Research (UCAR) committed to augment the involvement of AGU scientists and their partners in education and public outreach activities that represent the full spectrum of research in the atmospheric and related sciences. In 2002, a comprehensive program is underway which invites scientists from UCAR, the National Center for Atmospheric Research (NCAR), and UCAR Office of Programs (UOP) into partnership with EO through volunteer orientation workshops, program specific training, skill-building in pedagogy, access to classroom resources, and program and instructor evaluation. Scientists contribute in one or several of the following roles: program partners who bridge research to education through collaborative grant proposals; science content advisors for publications, web sites, exhibits, and informal science events; science mentors for high school and undergraduate students; NCAR Mesa Laboratory tour guides; scientists in the schools; science education ambassadors to local and national community events; science speakers for EO programs, conferences, and meetings of local organization; and science wizards offering demonstrations at public events for children and families. This new EO initiative seeks to match the expertise and specific interests of scientists with appropriate activities, while also serving as a communications conduit through which ideas for new activities and resources can be seeded and eventually developed into viable, fully funded programs.

Foster, S. Q.

2002-12-01

340

Recent upgrade of the in vivo neutron activation facility at Brookhaven National Laboratory  

SciTech Connect

The in vivo neutron activation facility at Brookhaven National Laboratory consists of a delayed- and a prompt-gamma neutron activation (DGNA and PGNA) system and an inelastic neutron scattering (INS) system. The total body contents of several basic elements, including potassium, calcium, chlorine, sodium, and phosphorus are measured at the DGNA system; total body carbon is measured at the INS system; and the nitrogen-tohydrogen ratio is measured at the PGNA system. Based on the elemental composition, body compartments, such as total body fat and total body protein can be computed with additional independently measured parameters, such as total body water, body size, and body weight. Information on elemental and compartmental body composition obtained through neutron activation analysis is useful, if not essential, for research on growth, malnutrition, aging diseases, such as osteoporosis and acquired immunodeficiency syndrome in which the progression of the illness is closely related to changes in major body compartments, such as bone, adipose tissue, and muscle. The DGNA system has been modified and upgraded several times since it was first built. Recently, all three systems underwent major upgrades. This upgrading and some preliminary studies carried out with the modified facilities are reported here.

Ma, R.; Dilmanian, F.A..; Rarback, H.; Meron, M.; Kamen, Y.; Yasumura, S.; Weber, D.A. [Brookhaven National Lab., Upton, NY (United States); Stamatelatos, I.E. [Ioannina Univ. (Greece). Dept. of Medical Physics; Lidofsky, L.J. [Columbia Univ., New York, NY (United States). Dept. of Applied Physics and Nuclear Engineering; Pierson, R.N. Jr. [Saint Luke`s-Roosevelt Body Composition Unit, New York, NY (United States)

1993-10-01

341

On the effectiveness of active-engagement microcomputer-based laboratories  

NSDL National Science Digital Library

One hour active-engagement tutorials using microcomputer-based laboratory (MBL) equipment were substituted for traditional problem-solving recitations in introductory calculus-based mechanics classes for engineering students at the University of Maryland. The results of two specific tutorials, one on the concept of instantaneous velocity and one on Newton's third law were probed by using standard multiple-choice questions and a free-response final exam question. A comparison of the results of 11 lecture classes taught by six different teachers with and without tutorials shows that the MBL tutorials resulted in a significant improvement compared to the traditional recitations when measured by carefully designed multiple-choice problems. The free-response question showed that, although the tutorial students did somewhat better in recognizing and applying the concepts, there is still room for improvement.

Redish, Edward F.; Steinberg, Richard N.; Saul, Jeffrey

2005-11-23

342

"Gone" into Solution: Assessing the Effect of Hands-On Activity on Students' Comprehension of Solubility  

ERIC Educational Resources Information Center

Solubility is challenging for many general chemistry students, and the interactions of aqueous species are difficult to conceptualize. Derived from the pedagogies of Johnstone, Bloom, and Piaget, our primary research questions probe whether students' conceptual understandings of solubility could be enhanced by participation in a concept-building,…

Bruck, Laura B.; Bruck, Aaron D.; Phelps, Amy J.

2010-01-01

343

Access Nature[TM]: 45 Fun, Hands-On Activities for Everyone!  

ERIC Educational Resources Information Center

"Access Nature" is an outdoor science curriculum that focuses on habitats. This curriculum targets students ages 6-14 and aims to develop environmental awareness, environmental leadership skills, and outdoor knowledge and skills. Specific adaptations for disabled students are also considered. Contents include: (1) "Introduction to Habitats"; (2)…

Almeras, Bethe Gilbert; Heath, David

344

Summer Camp to Engage Students in Nutritional Chemistry Using Popular Culture and Hands-On Activities  

ERIC Educational Resources Information Center

Action Potential Science Experience (APSE) is a five-day summer camp offering science opportunities for K-8 students. The focus of the APSE curriculum is to teach science concepts and methods while challenging the participants to solve an overarching problem from the popular-culture context. The participants in the APSE entitled Burger 'N Fries…

Skluzacek, Joanna M.; Harper, Joshua; Herron, Emily; Bortiatynski, Jacqueline M.

2010-01-01

345

FREE Hands-on Science Night for Kids and Their Families Remote Sensing of Active  

E-print Network

), and christine butcher, Education and Outreach Assistant July 7 Physics: It's as sweet as chocolate emmA m Professor of Art and Curator of Fine Arts, University of Alaska Museum of the North July 28 Cultural Sharing: Storyknifing, Yup'ik Dance, and Making a Yup'ik Fish Camp Doll Jerry liPKA, dorA AndreW-ihrKe and evelyn y

Sikes, Derek S.

346

Art Activities about Mesopotamia, Egypt and Islam. Hands-On Ancient People.  

ERIC Educational Resources Information Center

This book features objects of the Mesopotamian, the Egyptian, and Islamic cultures. In exploring important contributions in ancient art, the book presents visuals that are interpretations of authentic artifacts, usually in museum collections, or illustrations from archaeological publications and articles. Historical items (n=55+) have been adapted…

Merrill, Yvonne Y.

347

What Research Says: Activity-Based Elementary Science: A Double Bonus.  

ERIC Educational Resources Information Center

Summarizes changes in student achievement and behavior (cross-racial selections) due to the adoption of an activity-based elementary education program (Harcourt Brace Jovanovich Classroom Laboratories and Elementary Science Study units) in Springfield, Massachusetts. Emphasis of hands-on experience in mixed-race groups was effective in student…

Donnellan, Kathleen M.; Roberts, Gary J.

1985-01-01

348

Laboratory assessment of the molluscicidal and cercariacidal activities of Balanites aegyptiaca  

PubMed Central

Objective To assess the molluscicidal and cercariacidal activities of aqueous extracts of Balanites aegyptiaca (B. aegyptiaca) against Ethiopian Biomphalaria pfeifferi (B. pfeifferi), Lymnaea natalensis (L. natalensis) and Schistosoma mansoni (S. mansoni) cercariae. Methods Extracts of seeds, endocarp, mesocarp, and fruit of B. aegyptiaca were tested for their activities against adult B. pfeifferi and L. natalensis. The cercariacidal activity of the seeds of the plant was also evaluated against S. mansoni. Bioassays were carried out following the methods recommended by WHO. Snail mortalities were compared between each plant part and snail species, and LC50 and LC90 values for the plant parts tested were computed. The cercariacidal activity of the plant was assessed by exposing the mice to the cercariae pre-exposed to aqueous extract of B. aegyptiaca seeds. Results For the molluscicidal activities of seeds, endocarp, mesocarp and whole fruit, the LC50 values against B. pfeifferi were 56.32, 77.53, 65.51 and 66.63 mg/L, respectively, while the respective LC90 values were 77.70, 120.04, 89.50 and 97.55 mg/L. Similarly, the LC50 values for the seeds, endocarp, mesocarp and whole fruit against L. natalensis were 80.33, 92.61, 83.52 and 87.84 mg/L, respectively, while the respective LC90 values were 102.30, 138.21, 115.42 and 127.69 mg/L. B. pfeifferi were found to be more susceptible to B. aegyptiaca than L. natalensis. S. mansoni cercariae exposed to 15 mg/L of extract of seeds were incapable of infecting mice. The mean egg load of tissue was reduced in mice infected with the cercariae exposed to 5 and 10 mg/L of the extract. Conclusions The aqueous extracts of different parts of B. aegyptiaca exhibited reasonable molluscicidal activity against B. pfeifferi and L. natalensis, as well as cercariacidal activity against S. mansoni cercariae. However, comprehensive laboratory evaluation is recommended prior to field tests of the plant parts since their impact on other aquatic biota is not known. PMID:23905025

Molla, Eshetu; Giday, Mirutse; Erko, Berhanu

2013-01-01

349

http://kt.ijs.si/petra_kralj/dmkd.html Hand on Weka  

E-print Network

http://kt.ijs.si/petra_kralj/dmkd.html Hand on Weka 2014/11/11 Petra Kralj Novak Petra.Kralj.Novak@ijs.si #12;http://kt.ijs.si/petra_kralj/dmkd.html Data Mining Tools · Weka http://www.cs.waikato.ac.nz/ml/weka://kt.ijs.si/petra_kralj/dmkd.html Weka (Waikato Environment for Knowledge Analysis) · Collection of machine learning algorithms for data

Novak, Petra Kralj

350

Petra.Kralj@ijs.si Hand on Weka: Just a Taste  

E-print Network

Petra.Kralj@ijs.si Hand on Weka: Just a Taste 2012/11/20 Petra Kralj Novak Petra.Kralj.Novak@ijs.si #12;Petra.Kralj@ijs.si Data Mining Tools · Weka http://www.cs.waikato.ac.nz/ml/weka/ · Orange http://rapid-i.com/content/view/181/196/ · ClowdFlows http://clowdflows.org/ #12;Petra.Kralj@ijs.si Weka (Waikato Environment

Novak, Petra Kralj

351

Petra.Kralj.Novak@ijs.si Hand on Weka: Just a Taste  

E-print Network

Petra.Kralj.Novak@ijs.si Hand on Weka: Just a Taste 2013/11/11 Petra Kralj Novak Petra.Kralj.Novak@ijs.si #12;Petra.Kralj.Novak@ijs.si Data Mining Tools · Weka http://www.cs.waikato.ac.nz/ml/weka/ · Orange.Kralj.Novak@ijs.si Weka (Waikato Environment for Knowledge Analysis) · Collection of machine learning algorithms for data

Novak, Petra Kralj

352

Creating a Hands-On Robot Environment for Teaching Assembly Language Programming  

NSDL National Science Digital Library

Real-world computer applications and assembly language programming are often taught with abstract exercises. To provide hands-on, real-world experience early, we introduce robots into our assembly language class. This paper describes the creation of a bridge from assembly language to a publicly available simulator, programming exercises, and a reconfigurable maze environment compatible with the simulator. This, with other open-source software, provides a complete development environment at no cost to the student.

Rababaah, Haroun R.; Wolfer, James

2010-01-01

353

Lawrence Livermore National Laboratory?s Book of Minimum Detectable Activity for Direct Measurement of Internally Deposited Radionuclides in Radiation Workers  

SciTech Connect

Lawrence Livermore National Laboratory maintains an in vivo measurement program designed to identify and evaluate the activity of radionuclides deposited in the body. Two types of systems are primarily used for the routine monitoring of radiation workers, the lung counting system and the scanning bed whole body counting system. The lung counting system is comprised of two Canberra ACTII detector sets. Each ACTII set contains two planar germanium detectors with carbon composite end windows optimized to measure low energy photon emitting radionuclides. The ACTII detectors are placed on the upper torso over the lungs for the direct measurement of internally deposited radionuclides in the lungs that emit low energy photons. A correction for the thickness of the chest wall is applied to the efficiency. Because the thickness of the chest wall is a key factor in the measurement of low energy photon emitting radionuclides in the lung, the minimum detectable activity is a function of the chest wall thickness. The scanning bed whole body counting system is comprised of a thin air mattress on top of a carbon fiber bed that slowly scans over four high purity germanium detectors. The scanning system is designed to minimize variations in detected activity due to radionuclide distribution in the body. The scanning bed detection system is typically used for the measurement of internally deposited radionuclides that emit photons above 100 to 200 keV. MDAs have been generated for radionuclides that provide energies above 80 keV since the lowest calibration energy for the system is approximately 86 keV. The following charts and table provide best determination of minimum detectable activity using human subjects as controls for the background contributions. A wide variety of radionuclides are used throughout the laboratory and the following pages represent several of the radionuclides that have been encountered at the Whole Body and Spectroscopy Laboratories within Hazards Control.

Hickman, D P

2008-10-08

354

Idaho National Laboratory Cultural Resource Management Office FY 2011 Activity Report  

SciTech Connect

The Idaho National Laboratory (INL) Site is home to vast numbers and a wide variety of important cultural resources representing at least a 13,500 year span of human land use in the region. As a federal agency, the Department of Energy, Idaho Operations Office (DOE-ID) has legal responsibility for the management and protection of the resources and has contracted these responsibilities to Battelle Energy Alliance (BEA). The BEA professional staff is committed to maintaining a cultural resource management program that accepts the challenge of preserving INL cultural resources in a manner reflecting their importance in local, regional, and national history. This report is intended as a stand-alone document that summarizes activities performed by the INL Cultural Resource Management Office (CRMO) staff during fiscal year 2011. This work is diverse, far-reaching and though generally confined to INL cultural resource compliance, also includes a myriad of professional and voluntary community activities. This document is intended to be informative to both internal and external stakeholders, serve as a planning tool for future INL cultural resource management work, and meet an agreed upon legal requirement.

Julie Braun Williams; Brenda R. Pace; Hollie K. Gilbert; Christina L. Olson

2012-09-01

355

"RealTime Physics": Active Learning Labs Transforming the Introductory Laboratory  

ERIC Educational Resources Information Center

Computer-based tools that enable students to collect, display and analyse data in real time have catalysed the design of a laboratory curriculum that allows students to master a coherent body of physics concepts while acquiring traditional laboratory skills. This paper describes "RealTime Physics", a sequenced introductory laboratory curriculum…

Sokoloff, David R.; Laws, Priscilla W.; Thornton, Ronald K.

2007-01-01

356

Cognitive Achievement and Motivation in Hands-On and Teacher-Centred Science Classes: Does an Additional Hands-On Consolidation Phase (Concept Mapping) Optimise Cognitive Learning at Work Stations?  

ERIC Educational Resources Information Center

Our study monitored the cognitive and motivational effects within different educational instruction schemes: On the one hand, teacher-centred versus hands-on instruction; on the other hand, hands-on instruction with and without a knowledge consolidation phase (concept mapping). All the instructions dealt with the same content. For all…

Gerstner, Sabine; Bogner, Franz X.

2010-01-01

357

Patterns of phenoloxidase activity in insecticide resistant and susceptible mosquitoes differ between laboratory-selected and wild-caught individuals  

PubMed Central

Background Insecticide resistance has the potential to alter vector immune competence and consequently affect the transmission of diseases. Methods Using both laboratory isogenic strains and field-caught Culex pipiens mosquitoes, we investigated the effects of insecticide resistance on an important component of the mosquito immune system: the phenoloxidase (PO) activity. As infection risk varies dramatically with the age and sex of mosquitoes, allocation to PO immunity was quantified across different stages of the mosquito life cycle. Results Our results were consistent in showing that larvae have a higher PO activity than adults, females have a higher PO activity than males, and PO activity declines with adult age. We obtained, however, a marked discrepancy between laboratory and field-collected mosquitoes on the effect of insecticide resistance on PO activity. In the laboratory selected strains we found evidence of strong interactions between insecticide resistance and the age and sex of mosquitoes. In particular, 7 and 14 day old esterase-resistant adult females and acetylcholine-esterase resistant males had significantly higher PO activities than their susceptible counterparts. No such effects were, however, apparent in field-caught mosquitoes. Conclusions Combined, the field and laboratory-based approaches employed in this study provide a powerful test of the effect of insecticide resistance on PO-mediated immunity. The use of laboratory-selected insecticide-resistant strains is still the most widely used method to investigate the pleiotropic effects of insecticide resistance. Our results suggest that the outcome of these laboratory-selected mosquitoes must be interpreted with caution and, whenever possible, compared with mosquitoes captured from the field. PMID:24499651

2013-01-01

358

Twenty-first century skills for students: hands-on learning after school builds school and life success.  

PubMed

At the core of the movement for twenty-first century skills are students. The growing efforts to increase programs leveraging out-of-school time are focused on giving American youth everything they need to compete in this increasingly complex world. The author is one of many students who have been well served by initiatives imparting twenty-first century skills during after-school hours. Now a senior at Boston Latin School, the author has been helped along the way by Citizen Schools, an after-school education program focused on hands-on learning apprenticeships and homework help. While enrolled in the program as a middle school student, the author took part in projects that exemplified hands-on, inquiry-based learning that helped her develop twenty-first century skills. For example, along with dozens of other students, she advanced her data analysis skills by analyzing statistics about Boston Public high schools, which also helped her select and enroll in one of the city's premier exam schools. Also, she and her peers worked with corporate attorneys who served as writing coaches and whose expertise the author drew from in producing a published essay and greatly improving her writing skills. The author now finds that the public speaking, leadership, organizational, social, and management abilities she built through her participation in Citizen Schools are a great asset to her in high school. The confidence with which she tackles her responsibilities can also be traced back to her experiences in the program. As she looks toward college, the author reflects and realizes that being actively involved in a quality after-school program put her on track for a successful future. PMID:17017266

Cabral, Leide

2006-01-01

359

Remote Atomic Force Microscopy of Microscopic Organisms: Technological Innovations for Hands-On Science with Middle and High School Students  

ERIC Educational Resources Information Center

This study examined hands-on experiences in the context of an investigation of viruses and explored how and why hands-on experiences may be effective. We sought to understand whether or not touching and manipulating materials and objects could lead to a deeper, more effective type of knowing than that we obtain from sight or sound alone. Four…

Jones, M. G.; Andre, T.; Kubasko, D.; Bokinsky, A.; Tretter, T.; Negishi, A.; Taylor, R.; Superfine, R.

2004-01-01

360

The interdisciplinary effect of hands-on science as measured by the Tennessee Comprehensive Assessment Program (TCAP)  

NASA Astrophysics Data System (ADS)

This study examined the difference in scale scores from Tennessee's standardized test the Tennessee Comprehensive Assessment Program (TCAP). Archival data from the years 2002 and 2005 were compared using ANOVA tests at < .01 and < .05 levels. TCAP/NCE Scale Scores for academic subjects of Science, Math, Social Studies and Reading were used. 3922 student test results were divided into groups based on the number of years the student had a trained hands-on science teacher. Trained hands-on science teachers were identified from Metropolitan Nashville Public Schools (MNPS) Science Department inservice records, which gave information on the teacher's participation in The Hands-on Science Initiative, Biology Gateway and Physical Science training. This information included not only that the teacher had be trained but also the dates of training. The study revealed 1600 students who attended MNPS between the years 2002 and 2005; in grades five through seven that never had a hands-on science trained teacher. About 1600 students in those same years had a hands-on science teacher for only one year, and 588 students had a hands-on science teacher for two of the three years. Lastly of the 3922 students in the study there were 44 students who had a hands-on science teacher for all three years. The results of the ANOVA test showed statistically significant gains in science, math and social studies but not in reading for students who had trained hands-on science teachers for at least one year.

Cherry, Elvis H.

361

AC 2010-415: IMPROVED STUDENT LEARNING OF MICROPROCESSOR SYSTEMS THROUGH HANDS-ON AND ONLINE EXPERIENCE  

E-print Network

AC 2010-415: IMPROVED STUDENT LEARNING OF MICROPROCESSOR SYSTEMS THROUGH HANDS-ON AND ONLINE of Microprocessor Systems Through Hands-On and Online Experience Abstract This paper describes an approach to assess and improve the understanding of microprocessor systems for electrical and computer engineering students

LaMeres, Brock J.

362

Preliminary siting activities for new waste handling facilities at the Idaho National Engineering Laboratory  

SciTech Connect

The Idaho Waste Processing Facility, the Mixed and Low-Level Waste Treatment Facility, and the Mixed and Low-Level Waste Disposal Facility are new waste treatment, storage, and disposal facilities that have been proposed at the Idaho National Engineering Laboratory (INEL). A prime consideration in planning for such facilities is the selection of a site. Since spring of 1992, waste management personnel at the INEL have been involved in activities directed to this end. These activities have resulted in the (a) identification of generic siting criteria, considered applicable to either treatment or disposal facilities for the purpose of preliminary site evaluations and comparisons, (b) selection of six candidate locations for siting,and (c) site-specific characterization of candidate sites relative to selected siting criteria. This report describes the information gathered in the above three categories for the six candidate sites. However, a single, preferred site has not yet been identified. Such a determination requires an overall, composite ranking of the candidate sites, which accounts for the fact that the sites under consideration have different advantages and disadvantages, that no single site is superior to all the others in all the siting criteria, and that the criteria should be assigned different weighing factors depending on whether a site is to host a treatment or a disposal facility. Stakeholder input should now be solicited to help guide the final selection. This input will include (a) siting issues not already identified in the siting, work to date, and (b) relative importances of the individual siting criteria. Final site selection will not be completed until stakeholder input (from the State of Idaho, regulatory agencies, the public, etc.) in the above areas has been obtained and a strategy has been developed to make a composite ranking of all candidate sites that accounts for all the siting criteria.

Taylor, D.D.; Hoskinson, R.L.; Kingsford, C.O.; Ball, L.W.

1994-09-01

363

The plasma dynamics of hypersonic spacecraft: Applications of laboratory simulations and active in situ experiments  

NASA Technical Reports Server (NTRS)

Attempts to gain an understanding of spacecraft plasma dynamics via experimental investigation of the interaction between artificially synthesized, collisionless, flowing plasmas and laboratory test bodies date back to the early 1960's. In the past 25 years, a number of researchers have succeeded in simulating certain limited aspects of the complex spacecraft-space plasma interaction reasonably well. Theoretical treatments have also provided limited models of the phenomena. Several active experiments were recently conducted from the space shuttle that specifically attempted to observe the Orbiter-ionospheric interaction. These experiments have contributed greatly to an appreciation for the complexity of spacecraft-space plasma interaction but, so far, have answered few questions. Therefore, even though the plasma dynamics of hypersonic spacecraft is fundamental to space technology, it remains largely an open issue. A brief overview is provided of the primary results from previous ground-based experimental investigations and the preliminary results of investigations conducted on the STS-3 and Spacelab 2 missions. In addition, several, as yet unexplained, aspects of the spacecraft-space plasma interaction are suggested for future research.

Stone, N. H.; Samir, Uri

1986-01-01

364

Active personal dosemeters in interventional radiology: tests in laboratory conditions and in hospitals.  

PubMed

The work package 3 of the ORAMED project, Collaborative Project (2008-11) supported by the European Commission within its seventh Framework Programme, is focused on the optimisation of the use of active personal dosemeters (APDs) in interventional radiology and cardiology (IR/IC). Indeed, a lack of appropriate APD devices is identified for these specific fields. Few devices can detect low-energy X rays (20-100 keV), and none of them are specifically designed for working in pulsed radiation fields. The work presented in this paper consists in studying the behaviour of some selected APDs deemed suitable for application in IR/IC. For this purpose, measurements under laboratory conditions, both with continuous and pulsed X-ray beams, and tests in real conditions on site in different European hospitals were performed. This study highlights the limitations of APDs for this application and the need of improving the APD technology so as to fulfil all needs in the IR/IC field. PMID:21186215

Clairand, I; Bordy, J-M; Daures, J; Debroas, J; Denozière, M; Donadille, L; Ginjaume, M; Itié, C; Koukorava, C; Krim, S; Lebacq, A-L; Martin, P; Struelens, L; Sans-Mercé, M; Tosic, M; Vanhavere, F

2011-03-01

365

From Creeks to the Classroom: Hands-on Curriculum Units on the Web  

NASA Astrophysics Data System (ADS)

Archway School is in the process of developing 6 curriculum units to teach middle school students about the ecology and environmental science of the San Francisco Bay Area. This is being accomplished through integrated classroom, field trip, and creek restoration project activities. The creek where restoration work takes place becomes an outdoor laboratory for a wide array of classroom lessons tied to both National and California Science Education Standards. The entire curriculum, including all lesson plans, assessments, and examples of student work are being made available, free of charge, to teachers and educators via the Internet. Although the units were initially developed to teach about the natural and geological history of the San Francisco Bay Area, classroom activities are structured such that they could be used at any school and restoration work could be undertaken at any creek in the country. This presentation will showcase the curriculum and provide information so that educators may bring it home to their own institutions. Teachers will get a "tour" of 3 of the 6 curriculum units (Ecology, Watersheds, Earth History) and then have an opportunity to view activities that highlight the strengths of the program.

Salter, I. Y.

2005-12-01

366

LABORATORY AND FIELD STUDIES TO EVALUATE RISKS TO LARVAL FISH FROM PHOTO-ACTIVATED TOXICITY OF PAHS  

EPA Science Inventory

Hazard from photo-activation of PAHs has been well documented in aquatic organisms. Far less certain is the degree to which risk actually occurs in the field. This presentation outlines a series of laboratory and field experiments conducted to better understand the dosimetry and ...

367

Analyzing the Function of Cartilage Replacements: A Laboratory Activity to Teach High School Students Chemical and Tissue Engineering Concepts  

ERIC Educational Resources Information Center

A cartilage tissue engineering laboratory activity was developed as part of the Exciting Discoveries for Girls in Engineering (EDGE) Summer Camp sponsored by the Women In Engineering Program (WIEP) at Purdue University. Our goal was to increase awareness of chemical engineering and tissue engineering in female high school students through a…

Renner, Julie N.; Emady, Heather N.; Galas, Richards J., Jr.; Zhange, Rong; Baertsch, Chelsey D.; Liu, Julie C.

2013-01-01

368

Using Laboratory Activities Enhanced with Concept Cartoons to Support Progression in Students' Understanding of Acid-Base Concepts  

ERIC Educational Resources Information Center

The aim of this study is to examine the effectiveness of an intervention based on a series of laboratory activities enhanced with concept cartoons. The purpose of the intervention was to enhance students' understanding of acid-base chemistry for eight grade students' from two classes in a Turkish primary school. A pretest-posttest non-equivalent…

Ozmen, Haluk; Demircioglu, Gokhan; Burhan, Yasemin; Naseriazar, Akbar; Demircioglu, Hulya

2012-01-01

369

PARK-IT! Elementary School Land Laboratories in Toledo City Parks. Curriculum Activity Guide, Grades 4-6.  

ERIC Educational Resources Information Center

The project PARK-IT! represents a unique partnership between a public elementary school and a city park in which students and teachers utilize a small naturalized area of the park as a Land Laboratory, and in return become its stewards. The project also includes this curriculum activity guide which can assist teachers in using the Land Lab with…

DuFour, Marilyn Berry; Courter, Linda Kothera; Garvin, Dennis M.

370

PARK-IT! Elementary School Land Laboratories in Toledo City Parks. Curriculum Activity Guide, Grades K-1.  

ERIC Educational Resources Information Center

The project PARK-IT! represents a unique partnership between a public elementary school and a city park in which students and teachers utilize a small naturalized area of the park as a Land Laboratory, and in return become its stewards. The project also includes this curriculum activity guide which can assist teachers in using the Land Lab with…

DuFour, Marilyn Berry; Courter, Linda Kothera; Garvin, Dennis M.

371

PARK-IT! Elementary School Land Laboratories in Toledo City Parks. Curriculum Activity Guide, Grades 2-3.  

ERIC Educational Resources Information Center

The project PARK-IT! represents a unique partnership between a public elementary school and a city park in which students and teachers utilize a small naturalized area of the park as a Land Laboratory, and in return become its stewards. The project also includes this curriculum activity guide which can assist teachers in using the Land Lab with…

DuFour, Marilyn Berry; Courter, Linda Kothera; Garvin, Dennis M.

372

Electronic commerce software laboratory  

Microsoft Academic Search

With NSF support we developed a hands-on laboratory to augment our CS453 Electronic Commerce Technologies course. We conducted weekly lab sessions that covered HTML, CSS, JavaScript, Perl, CGI, SQL, ASP, and Flash programming. Each topic was covered over a period of one to three weeks and each topic was supported by 10 to 26 individual programming exercises. Four teaching assistants

Alfred C. Weaver

2004-01-01

373

Current radar-responsive tag development activities at Sandia National Laboratories  

NASA Astrophysics Data System (ADS)

Over the past ten years, Sandia has developed RF radar responsive tag systems and supporting technologies for various government agencies and industry partners. RF tags can function as RF transmitters or radar transponders that enable tagging, tracking, and location determination functions. Expertise in tag architecture, microwave and radar design, signal analysis and processing techniques, digital design, modeling and simulation, and testing have been directly applicable to these tag programs. In general, the radar responsive tag designs have emphasized low power, small package size, and the ability to be detected by the radar at long ranges. Recently, there has been an interest in using radar responsive tags for Blue Force tracking and Combat ID (CID). The main reason for this interest is to allow airborne surveillance radars to easily distinguish U.S. assets from those of opposing forces. A Blue Force tracking capability would add materially to situational awareness. Combat ID is also an issue, as evidenced by the fact that approximately one-quarter of all U.S. casualties in the Gulf War took the form of ground troops killed by friendly fire. Because the evolution of warfare in the intervening decade has made asymmetric warfare the norm rather than the exception, swarming engagements in which U.S. forces will be freely intermixed with opposing forces is a situation that must be anticipated. Increasing utilization of precision munitions can be expected to drive fires progressively closer to engaged allied troops at times when visual de-confliction is not an option. In view of these trends, it becomes increasingly important that U.S. ground forces have a widely proliferated all-weather radar responsive tag that communicates to all-weather surveillance. The purpose of this paper is to provide an overview of the recent, current, and future radar responsive research and development activities at Sandia National Laboratories that support both the Blue Force Tracking and Combat ID application. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company for the United States Departments of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.

Ormesher, Richard C.; Plummer, Kenneth W.; Wells, Lars M.

2004-08-01

374

Hands-on optics: making an impact with light (Invited Paper)  

NASA Astrophysics Data System (ADS)

Hands-On Optics: Making an Impact with Light (HOO) is a three-year informal science program designed to bring optics education to tens of thousands of underserved students nationwide. SPIE-The International Society for Optical Engineering and the Optical Society of America (OSA), along with Mathematics, Engineering, Science Achievement (MESA) and the National Optical Astronomy Observatory (NOAO), were awarded a $1.7 million grant from the U.S. National Science Foundation (NSF) in 2003 to implement this national science enrichment program intended for children in middle school (approximately 11 to 14 years old).

Johnson, Anthony M.; Arthurs, Eugene G.; Pompea, Stephen M.

2005-06-01

375

LABORATORY EVALUATION OF ADULTICIDAL ACTIVITY OF SIXTEEN INSECT REPELLENTS IN AEROSOL SPRAYS AGAINST THREE MOSQUITO SPECIES  

Technology Transfer Automated Retrieval System (TEKTRAN)

Sixteen commercial insect repellents (six natural and 10 chemical products) in spray formulations were evaluated in the laboratory for adult knockdown (KD) and mortality of laboratory-reared female Aedes aegypti, Aedes albopictus and Anopheles quadrimaculatus. All tested products produced significa...

376

A Coastal Environment Field and Laboratory Activity for an Undergraduate Geomorphology Course  

ERIC Educational Resources Information Center

A field and laboratory exercise for an undergraduate geomorphology class is described that focuses on the beach. The project requires one day of fieldwork and two laboratory sessions. In the field, students measure water surface fluctuations (waves) with a pressure sensor, survey beach profiles, collect sediment samples, and observe the beach…

Ellis, Jean T.; Rindfleisch, Paul R.

2006-01-01

377

Active learning: A small group histology laboratory exercise in a whole class setting utilizing virtual slides and peer education.  

PubMed

Histology laboratory instruction is moving away from the sole use of the traditional combination of light microscopes and glass slides in favor of virtual microscopy and virtual slides. At the same time, medical curricula are changing so as to reduce scheduled time for basic science instruction as well as focusing on student-centered learning approaches such as small group active learning and peer-instruction. It is important that medical schools resist the temptation to respond to this conjunction of events by turning histology into a self-study activity. This article describes a lymphoid histology laboratory exercise, occurring in a specially equipped Learning Studio housing an entire medical class that utilizes virtual slides in the context of small group active learning and peer instruction. PMID:22730160

Bloodgood, Robert A

2012-01-01

378

Ancient microbial activity recorded in fracture fillings from granitic rocks (Äspö Hard Rock Laboratory, Sweden).  

PubMed

Fracture minerals within the 1.8-Ga-old Äspö Diorite (Sweden) were investigated for fossil traces of subterranean microbial activity. To track the potential organic and inorganic biosignatures, an approach combining complementary analytical techniques of high lateral resolution was applied to drill core material obtained at -450 m depth in the Äspö Hard Rock Laboratory. This approach included polarization microscopy, time-of-flight secondary ion mass spectrometry (ToF-SIMS), confocal Raman microscopy, electron microprobe (EMP) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The fracture mineral succession, consisting of fluorite and low-temperature calcite, showed a thin (20-100 ?m), dark amorphous layer lining the boundary between the two phases. Microscopic investigations of the amorphous layer revealed corrosion marks and, in places, branched tubular structures within the fluorite. Geochemical analysis showed significant accumulations of Si, Al, Mg, Fe and the light rare earth elements (REE) in the amorphous layer. In the same area, ToF-SIMS imaging revealed abundant, partly functionalized organic moieties, for example, C(x)H(y)?, C(x)H(y)N?, C(x)H(y)O?. The presence of such functionalized organic compounds was corroborated by Raman imaging showing bands characteristic of C-C, C-N and C-O bonds. According to its organic nature and the abundance of relatively unstable N- and O- heterocompounds, the organic-rich amorphous layer is interpreted to represent the remains of a microbial biofilm that established much later than the initial cooling of the Precambrian host rock. Indeed, ?¹³C, ?¹?O and ??Sr/??Sr isotope data of the fracture minerals and the host rock point to an association with a fracture reactivation event in the most recent geological past. PMID:22506979

Heim, C; Lausmaa, J; Sjövall, P; Toporski, J; Dieing, T; Simon, K; Hansen, B T; Kronz, A; Arp, G; Reitner, J; Thiel, V

2012-07-01

379

A Hands-on Education Program on Cyber Physical Systems for High School Students  

NSDL National Science Digital Library

Cyber Physical Systems (CPS) are the conjoining of an entities' physical and computational elements. The development of a typical CPS system follows a sequence from conceptual modeling, testing in simulated (virtual) worlds, testing in controlled (possibly laboratory) environments and finally deployment. Throughout each (repeatable) stage, the behavior of the physical entities, the sensing and situation assessment, and the computation and control options have to be understood and carefully represented through abstraction. The CPS Group at the Ohio State University, as part of an NSF funded CPS project on "Autonomous Driving in Mixed Environments", has been developing CPS related educational activities at the K-12, undergraduate and graduate levels. The aim of these educational activities is to train students in the principles and design issues in CPS and to broaden the participation in science and engineering. The project team has a strong commitment to impact STEM education across the entire K-20 community. In this paper, we focus on the K-12 community and present a two-week Summer Program for high school juniors and se- niors that introduces them to the principles of CPS design and walks them through several of the design steps. We also provide an online repository that aids CPS researchers in providing a similar educational experience.

Gadepally, Vijay; Krishnamurthy, Ashok; Ozguner, Umit

380

Nucleophilic Aromatic Substitution, A Guided Inquiry Laboratory Experiment.  

PubMed

Inquiry-based learning is a unique student-centered alternative to traditional instruction. This form of active learning is ideal for the organic chemistry laboratory as it encourages critical thinking and hands on problem solving to complete an experiment. Electrophilic Aromatic Substitution is immediately associated with the undergraduate organic chemistry course. However, nucleophilic aromatic substitution is not. The N-arylation of aniline derivatives is a useful reaction for implementing nucleophilic aromatic substitution into the undergraduate curriculum. Under the framework of inquiry-based learning, a straightforward procedure has been developed for the undergraduate laboratory. This experiment explores the reaction rate of the nucleophilic aromatic substitution using various electrophiles. The reaction is conducted under microwave irradiation and the experiment is completed in one laboratory setting. PMID:21197138

Winfield, Leyte L

2010-01-01

381

eComLab: remote laboratory platform  

NASA Astrophysics Data System (ADS)

Hands-on experiments with electronic devices have been recognized as an important element in the field of engineering to help students get familiar with theoretical concepts and practical tasks. The continuing increase the student number, costly laboratory equipment, and laboratory maintenance slow down the physical lab efficiency. As information technology continues to evolve, the Internet has become a common media in modern education. Internetbased remote laboratory can solve a lot of restrictions, providing hands-on training as they can be flexible in time and the same equipment can be shared between different students. This article describes an on-going remote hands-on experimental radio modulation, network and mobile applications lab project "eComLab". Its main component is a remote laboratory infrastructure and server management system featuring various online media familiar with modern students, such as chat rooms and video streaming.

Pontual, Murillo; Melkonyan, Arsen; Gampe, Andreas; Huang, Grant; Akopian, David

2011-06-01

382

Characterization of the activity and stability of amylase from saliva and detergent: laboratory practicals for studying the activity and stability of amylase from saliva and various commercial detergents.  

PubMed

This article presents two integrated laboratory exercises intended to show students the role of ?-amylases (AAMYs) in saliva and detergents. These laboratory practicals are based on the determination of the enzymatic activity of amylase from saliva and different detergents using the Phadebas test (quantitative) and the Lugol test (qualitative) under different conditions (e.g. variations in temperature and alkalinity). This work also proposes the study of enzyme stability in the presence of several surfactants and oxidizing agents using the same technical approach. The proposed laboratory exercises promote the understanding of the physiological function of this enzyme and the biotechnological applications of AAMYs in the detergent industry. The exercises also promote the understanding that the enzymatic stability and performance are dependent on the organism of origin, and if necessary, these properties could be modified by genetic engineering. In addition, this article reinforces the development of laboratory skills, problem-solving capabilities, and the ability to write a laboratory report. The exercises are proposed primarily as an undergraduate project for advanced students in the biochemical and biotechnological sciences. These laboratory practicals are complementary to the previously published BAMBED article (Biochemistry and Molecular Biology Education Vol. 39, No. 4, pp. 280-290, 2011) on detergent proteases. PMID:22807429

Valls, Cristina; Rojas, Cristina; Pujadas, Gerard; Garcia-Vallve, Santi; Mulero, Miquel

2012-07-01

383

Oak Ridge National Laboratory's (ORNL) Weigh-In-Motion (WIM) Configuration and Data Management Activities  

SciTech Connect

The Oak Ridge National Laboratory (ORNL) involvement in the Weigh-in-Motion (WIM) research with both government agencies and private companies dates back to 1989. The discussion here will focus on the US Army's current need for an automated WIM system to weigh and determine the center-of-balance for military wheeled vehicles and cargo and the expanded uses of WIM data. ORNL is addressing configuration and data management issues as they relate to deployments for both military and humanitarian activities. The transition from the previous WIM Gen I to the current Gen II system illustrates a configuration and data management solution that ensures data integration, integrity, coherence and cost effectiveness. Currently, Army units use portable and fixed scales, tape measures, and calculators to determine vehicle axle, total weights and center of balance for vehicles prior to being transshipped via railcar, ship, or airlifted. Manually weighing and measuring all vehicles subject to these transshipment operations is time-consuming, labor-intensive, hazardous and is prone to human errors (e.g., misreading scales and tape measures, calculating centers of balance and wheel, axle, and vehicle weights, recording data, and transferring data from manually prepared work sheets into an electronic data base and aggravated by adverse weather conditions). Additionally, in the context of the military, the timeliness, safety, success, and effectiveness of airborne heavy-drop operations can be significantly improved by the use of an automated system to weigh and determine center of balance of vehicles while they are in motion. The lack of a standardized airlift-weighing system for joint service use also creates redundant weighing requirements at the cost of scarce resources and time. This case study can be judiciously expanded into commercial operations related to safety and enforcement. The WIM program will provide a means for the Army to automatically identify/weigh and monitor vehicle characteristics for real-time storage/dissemination to the TC-AIMS II (Transportation Coordinators' - Automated Information for Movement System II) for load planning and for providing asset visibility. The WIM system was developed using COTs products and the Reach Back (WIM-RBC) capability is based on a Web-services architecture implemented through best practices of software design (UML and XML schema). Fielded systems and XML-compliant messages can engage the WIM-RBC to store all measurement data in the repository accessible to authorized users through standard secure protocols.

Abercrombie, Robert K [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL; Schlicher, Bob G [ORNL] [ORNL

2006-01-01

384

Women with PTSD: the psychodynamic aspects of psychopharmacologic and "hands-on" psychiatric management.  

PubMed

The article addresses the psychodynamic issues that influence the psychiatric treatment of women with PTSD. The focus is on the patient's response to the physical and nonverbal elements of treatment including hands-on touch and providing oral medications. The purpose is to help psychiatrists better understand and care for women with PTSD and the better manage the existing barriers to effective treatment. The neuroanatomy and neurobiology of PTSD will be discussed to illustrate the interface between: (1) the neural correlates of physical and sexual abuse and the presence of PTSD in adult women, and (2) the neurophysiologic pathway for healing through therapy aimed at empowering the trauma patient to take constructive action. PMID:12389515

Sageman, Sharon

2002-01-01

385

Acquiring Knowledge of Physics by a Hands-On Approach in Romanian Primary School  

NASA Astrophysics Data System (ADS)

The present work discusses results of a test concerning the progress of learning Natural Science at the end of the primary cycle in the context of current curriculum in Romania. The test is focused on acquiring knowledge of physics. The test is structured into four items: The first one proposes a virtual experiment for establishing the level of mathematics knowledge of students. As the second and third items the test focuses on the degree of learning through experiments described in the student book. The fourth item tests the acquired knowledge by experiments carried out directly by students. All items have two requirements: a) What happens in the experiment? and b) Explain why. Test was applied to a sample of 138 students from grade 4th. The test shows the imperative need to use a Hands-On approach for Assessing Natural Sciences in primary classes.

Niculae, Marcela; Niculae, C. M.; Doncu, Roxana

2010-01-01

386

Exploring the Solar System in the Classroom: A Hands-On Approach  

NASA Technical Reports Server (NTRS)

This final report discusses the development and implementation of several educational products for K-16 teachers and students. Specifically, I received support for: (A) three K-12 Teacher workshops, Exploring the Solar System in the Classroom: A Hands-On Approach, and minimal Support to finish two computer-based tutorials. (B) Contact Light: An Interactive CD-ROM, and (C) Another Look at Taurus Littrow: An Interactive GIS Database. Each of these projects directly supports NASA's Strategic Plan to: "Involve the education community in our endeavors to inspire America's students, create learning opportunities, enlighten inquisitive minds", and, to "communicate widely the content, relevancy, and excitement of NASA's missions and discoveries to inspire and to increase understanding and the broad application of science and technology." Attachment: Appendix A. And also article: "Aristarchus plateau: as potential lunar base site."

Coombs, Cassandra R.

2000-01-01

387

Laboratory directed research and development. FY 1991 program activities: Summary report  

SciTech Connect

The purposes of Argonne`s Laboratory Directed Research and Development (LDRD) Program are to encourage the development of novel concepts, enhance the Laboratory`s R&D capabilities, and further the development of its strategic initiatives. Among the aims of the projects supported by the Program are establishment of engineering ``proof-of-principle``; development of an instrumental prototype, method, or system; or discovery in fundamental science. Several of these project are closely associated with major strategic thrusts of the Laboratory as described in Argonne`s Five Year Institutional Plan, although the scientific implications of the achieved results extend well beyond Laboratory plans and objectives. The projects supported by the Program are distributed across the major programmatic areas at Argonne. Areas of emphasis are (1) advanced accelerator and detector technology, (2) x-ray techniques in biological and physical sciences, (3) advanced reactor technology, (4) materials science, computational science, biological sciences and environmental sciences. Individual reports summarizing the purpose, approach, and results of projects are presented.

Not Available

1991-11-15

388

Argonne National Laboratory, High Energy Physics Division: Semiannual report of research activities, July 1, 1986-December 31, 1986  

SciTech Connect

This paper discusses the research activity of the High Energy Physics Division at the Argonne National Laboratory for the period, July 1986-December 1986. Some of the topics included in this report are: high resolution spectrometers, computational physics, spin physics, string theories, lattice gauge theory, proton decay, symmetry breaking, heavy flavor production, massive lepton pair production, collider physics, field theories, proton sources, and facility development. (LSP)

Not Available

1987-01-01

389

Structural loads testing on the Active Aeroelastic Wing F-18 in the Flight Loads Laboratory at NASA'  

NASA Technical Reports Server (NTRS)

Structural loads testing on the Active Aeroelastic Wing F-18 in the Flight Loads Laboratory at NASA's Dryden flight Research Center, Edwards, California. The heavily modified and instrumented F-18A entered the Loads Lab in mid-March, 2001, for fit checks of loads hardware and instrumentation checkout prior to initiation of actual structural loads testing. The F-18A underwent loads testing on its modified wings for almost six months, followed by extensive systems tests and simulation before flight tests began.

2001-01-01

390

A universal method for measuring functional activity of complement in humans, laboratory, domestic, and agricultural animals, amphibians, and birds.  

PubMed

A new universal method for measuring activity of the serum complement system in humans, laboratory, domestic, agricultural animals, birds and amphibians is based on automated evaluation of the mortality of ciliate Tetrahymena pyriformis under the effect of the complement system. In contrast to the hemolytic method, measured activity of the complement shows no erroneously high results caused by reactive lysis in febrile patients. The method can be used for studies of the complement system in humans and animals without species-specific adaptation. PMID:24952500

Kuleshina, O N; Kozlov, L V; Cheremnykh, E G

2014-06-01

391

Using a PyMOL Activity to Reinforce the Connection between Genotype and Phenotype in an Undergraduate Genetics Laboratory  

PubMed Central

With the purpose of developing an activity that would help clarify genetic concepts related to the connection between genotype and phenotype and the nature of mutations, we designed a three hour teaching module using the PyMol software. The activity starts with two pre-laboratory assignments, one to learn how to use PyMol and the other to read about a specific protein or protein family. During the laboratory students are given instructions where and how to find additional information on a specific disease and its causal mutations in order to prepare a 10-minute, in-class presentation. Using a post activity, anonymous quiz, we found a statistically significant different grade distribution in students that participated in the PyMol activity relative to a control group. We also found a significant improvement in the student’s comprehension when answering questions regarding the nature of mutations and protein structure. This demonstrates the utility of this simulation activity as a vehicle to improve student’s understanding of specific key genetic concepts. PMID:25461967

Simmons, Alexandra D.; Nguyen, Thao K. T.; Follis, Jack L.; Ribes-Zamora, Albert

2014-01-01

392

Passive and active soil gas sampling at the Mixed Waste Landfill, Technical Area III, Sandia National Laboratories/New Mexico  

SciTech Connect

The Environmental Restoration Project at Sandia National Laboratories, New Mexico is tasked with assessing and remediating the Mixed Waste Landfill in Technical Area III. The Mixed Waste Landfill is a 2.6 acre, inactive radioactive and mixed waste disposal site. In 1993 and 1994, an extensive passive and active soil gas sampling program was undertaken to identify and quantify volatile organic compounds in the subsurface at the landfill. Passive soil gas surveys identified levels of PCE, TCE, 1,1, 1-TCA, toluene, 1,1,2-trichlorotrifluoroethane, dichloroethyne, and acetone above background. Verification by active soil gas sampling confirmed concentrations of PCE, TCE, 1,1,1-TCA, and 1,1,2-trichloro-1,2,2-trifluoroethane at depths of 10 and 30 feet below ground surface. In addition, dichlorodifluoroethane and trichlorofluoromethane were detected during active soil gas sampling. All of the volatile organic compounds detected during the active soil gas survey were present in the low ppb range.

McVey, M.D.; Goering, T.J. [GRAM, Inc., Albuquerque, NM (United States); Peace, J.L. [Sandia National Labs., Albuquerque, NM (United States)

1996-02-01

393

Imploding Soda Cans: From Demonstration to Guided-Inquiry Laboratory Activity  

ERIC Educational Resources Information Center

A guided-inquiry exercise conducted in both the lecture and laboratory components of a college introductory chemistry course for non-science majors is described. The exercise gave students the opportunity to independently determine the relationship between the temperature of water in an aluminum soda can and the intensity of implosion upon placing…

Eichler, Jack F.

2009-01-01

394

Research Report The Equine Reproduction Laboratory (ERL) has been an active education, research, outreach, and  

E-print Network

2007-2010 Research Report #12;#12;1 Preface The Equine Reproduction Laboratory (ERL) has been in equine reproduction in the world. The ERL is a unit within the Animal Reproduction and Biotechnology-breaking research in the areas of reproductive physiology, pathology, therapeutics, and management. In the past 5

Stephens, Graeme L.

395

Teaching Hands-On Manufacturing Technology Fundamentals to ME Students at Local Community Colleges  

Microsoft Academic Search

Some Mechanical Engineering departments in the United States currently do not have enough money to support and sustain modern machine shops, composite lay-up rooms, or welding laboratories within their program. Such shops are essential for new mechanical engineering graduates to understand first hand the issues involved in prototyping and product development. These laboratories are expensive to set up and even

Behnam Bahr; Kurt Soschinske; George Gray; Wichita Kansas

2007-01-01

396

Hands-on approach during breastfeeding support in a neonatal intensive care unit: a qualitative study of Swedish mothers' experiences  

PubMed Central

Background Assisting mothers to breastfeed is not easy when babies experience difficulties. In a neonatal intensive care unit (NICU), nurses often help mothers by using hands-on-breast without their permission. Little is known about how mothers feel about this unusual body touching. To gain more knowledge from mothers who lived through this experience, this hands-on practice was studied in a NICU in Sweden. Methods Between January and June 2001, in-depth interviews were conducted with ten mothers of preterm or sick term infants and all of them experienced the hands-on approach. In this research, Radnitzky's seven principles of hermeneutic interpretation were applied in order to interpret the meaning of mothers' responses. This article presents results related to the period of initiation of breastfeeding. This qualitative study was based on a combination of the models of Gustafsson, Orem, and Aarts' Marte Meo. Results Five main themes were identified: Insult to integrity, Manipulating the baby, Understanding and adjustment, Breasts as objects, Alternatives to this practice. Hands-on help in the breastfeeding situation was experienced as unpleasant and the women experienced their breasts as objectified. The mothers accepted the hands-on help given by nursing staff, even though they considered it unpleasant. Most mothers expressed a need for assistance when starting breastfeeding, but could not suggest any alternative to hands-on help such as demonstrating with an artificial breast and a doll. Conclusion The study provides information about how mothers experience unexpected hands-on help with breastfeeding in a NICU, which has not been described previously. Since most mothers in this study regarded this behavior as unpleasant and not helpful mostly because it was unexpected and unexplained, it would be important to either explain beforehand to mothers what type of physical approach could be attempted on their body or better, to avoid this type of approach completely. PMID:17064423

Weimers, Lena; Svensson, Kristin; Dumas, Louise; Navér, Lars; Wahlberg, Vivian

2006-01-01

397

Evaluation of Natural Compounds for Antimicrobial Activity in the Introductory Microbiology Laboratory.  

ERIC Educational Resources Information Center

Presents an experiment that provides students with an opportunity to investigate folk medicine and herbal cures and their accompanying claims. Involves isolating some active compounds from plant materials and demonstrating their antibacterial activity. (JRH)

Finer, Kim R.

1997-01-01

398

The Effect of a Computer Simulation Activity versus a Hands-on Activity on Product Creativity in Technology Education  

Microsoft Academic Search

Computer use in the classroom has become a popular method of instruction for many technology educators. This may be due to the fact that software programs have advanced beyond the early days of drill and practice instruction. With the introduction of the graphical user interface, increased processing speed, and affordability, computer use in education has finally come of age. Software

Kurt Y. Michael

2001-01-01

399

Clinical and Laboratory Parameters of Mast Cell Activation as Basis for the Formulation of Diagnostic Criteria  

Microsoft Academic Search

Mast cell (MC) activation occurs in a number of different pathologic conditions. Acute activation is commonly seen in patients with allergic reactions, with consecutive massive release of vasoactive and proinflammatory mediator substances from MCs, leading to the clinical signs and symptoms of anaphylaxis. In these patients, serum tryptase concentrations usually increase subtantially above baseline levels. Chronic MC activation is more

Peter Valent; Hans-Peter Horny; Massimo Triggiani; Michel Arock

2011-01-01

400

A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms.  

PubMed

Marine chemical ecology is a young discipline, having emerged from the collaboration of natural products chemists and marine ecologists in the 1980s with the goal of examining the ecological functions of secondary metabolites from the tissues of marine organisms. The result has been a progression of protocols that have increasingly refined the ecological relevance of the experimental approach. Here we present the most up-to-date version of a fish-feeding laboratory bioassay that enables investigators to assess the antipredatory activity of secondary metabolites from the tissues of marine organisms. Organic metabolites of all polarities are exhaustively extracted from the tissue of the target organism and reconstituted at natural concentrations in a nutritionally appropriate food matrix. Experimental food pellets are presented to a generalist predator in laboratory feeding assays to assess the antipredatory activity of the extract. The procedure described herein uses the bluehead, Thalassoma bifasciatum, to test the palatability of Caribbean marine invertebrates; however, the design may be readily adapted to other systems. Results obtained using this laboratory assay are an important prelude to field experiments that rely on the feeding responses of a full complement of potential predators. Additionally, this bioassay can be used to direct the isolation of feeding-deterrent metabolites through bioassay-guided fractionation. This feeding bioassay has advanced our understanding of the factors that control the distribution and abundance of marine invertebrates on Caribbean coral reefs and may inform investigations in diverse fields of inquiry, including pharmacology, biotechnology, and evolutionary ecology. PMID:25650625

Marty, Micah J; Pawlik, Joseph R

2015-01-01

401

The laboratory experience in introductory physics courses  

NASA Astrophysics Data System (ADS)

The last two decades or so have witnessed intense efforts to improve the teaching and learning of physics. Scholarly studies have provided the grounding for many projects which reform the structure of introductory courses. A number of these innovations, however, are resource intensive, or depend on the ability to introduce changes in areas which are beyond the control of the faculty (e.g., scheduling), thus inhibiting their implementation. An alternative strategy that overcomes these obstacles is to modify the nature of the laboratory experience (a component that practically nobody disputes is an essential part of the introductory course), to provide hands-on learning opportunities that differ from the traditional "follow-this-recipe-to-verify-this-law" approach. I have chosen to implement a variety of activities that support the overall objectives of the course: developing conceptual understanding and transferable skills, and providing practice in the ways scientists actually do science. Given the audience in this two-semester, algebra-based course, mostly biology majors and pre-professionals (health-related careers, such as medicine, physical therapy, and veterinary), these goals were identified as the most important and lasting contribution that a physics course can make to the students intellectual development. I offer here examples of the types of hands on activities that I have implemented, organized for the sake of this presentation in four rather loose categories, depending on which subset of the course objectives the activities mostly address: self-designed lab activities, discussion of demo-type activities, building concepts from simple to complex, and out-of-lab physical phenomena.

Di Stefano, Maria C.

1997-03-01

402

30 CFR 250.1509 - What must I do when BSEE administers or requires hands-on, simulator, or other types of testing?  

...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...requires you or your contractor to conduct hands-on, simulator, or other types of...

2014-07-01

403

30 CFR 250.1509 - What must I do when BSEE administers or requires hands-on, simulator, or other types of testing?  

Code of Federal Regulations, 2013 CFR

...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...requires you or your contractor to conduct hands-on, simulator, or other types of...

2013-07-01

404

30 CFR 250.1509 - What must I do when BSEE administers or requires hands-on, simulator, or other types of testing?  

Code of Federal Regulations, 2012 CFR

...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...must I do when BSEE administers or requires hands-on, simulator, or other types of testing...requires you or your contractor to conduct hands-on, simulator, or other types of...

2012-07-01

405

30 CFR 250.1509 - What must I do when MMS administers or requires hands-on, simulator, or other types of testing?  

Code of Federal Regulations, 2011 CFR

...must I do when MMS administers or requires hands-on, simulator, or other types of testing...must I do when MMS administers or requires hands-on, simulator, or other types of testing...requires you or your contractor to conduct hands-on, simulator, or other types of...

2011-07-01

406

30 CFR 250.1509 - What must I do when MMS administers or requires hands-on, simulator, or other types of testing?  

Code of Federal Regulations, 2010 CFR

...must I do when MMS administers or requires hands-on, simulator, or other types of testing...must I do when MMS administers or requires hands-on, simulator, or other types of testing...requires you or your contractor to conduct hands-on, simulator, or other types of...

2010-07-01

407

Radiological survey support activities for the decommissioning of the Ames Laboratory Research Reactor Facility, Ames, Iowa  

SciTech Connect

At the request of the Engineering Support Division of the US Department of Energy-Chicago Operations Office and in accordance with the programmatic overview/certification responsibilities of the Department of Energy Environmental and Safety Engineering Division, the Argonne National Laboratory Radiological Survey Group conducted a series of radiological measurements and tests at the Ames Laboratory Research Reactor located in Ames, Iowa. These measurements and tests were conducted during 1980 and 1981 while the reactor building was being decontaminated and decommissioned for the purpose of returning the building to general use. The results of these evaluations are included in this report. Although the surface contamination within the reactor building could presumably be reduced to negligible levels, the potential for airborne contamination from tritiated water vapor remains. This vapor emmanates from contamination within the concrete of the building and should be monitored until such time as it is reduced to background levels. 2 references, 8 figures, 6 tables.

Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Justus, A.L.; Flynn, K.F.

1984-09-01

408

A report on FY06 IPv6 deployment activities and issues at Sandia National Laboratories.  

SciTech Connect

Internet Protocol version 4 (IPv4) has been a mainstay of the both the Internet and corporate networks for delivering network packets to the desired destination. However, rapid proliferation of network appliances, evolution of corporate networks, and the expanding Internet has begun to stress the limitations of the protocol. Internet Protocol version 6 (IPv6) is the replacement protocol that overcomes the constraints of IPv4. IPv6 deployment in government network backbones has been mandated to occur by 2008. This paper explores the readiness of the Sandia National Laboratories' network backbone to support IPv6, the issues that must be addressed before a deployment begins, and recommends the next steps to take to comply with government mandates. The paper describes a joint, work effort of the Sandia National Laboratories ASC WAN project team and members of the System Analysis & Trouble Resolution and Network System Design & Implementation Departments.

Tolendino, Lawrence F.; Eldridge, John M.; Hu, Tan Chang

2006-06-01

409

[Peculiarities of clinical and laboratory characteristics of the activity of streptococcal infection in the patients presenting with tonsillar pathology].  

PubMed

The objective of the present study was to characterize peculiar clinical and laboratory features of trivial tonsillitis for the substantiation of the necessity of prescription of antibacterial therapy. A total of 386 patients presenting with various forms of trivial tonsillitis were available for the determination of anti-streptococcal antibody (ASLO, anti-DN-ase B, ASPH) levels. The results of the measurement were compared based on the Centor scale generally used to estimate the necessity of prescribing antibacterial therapy for the treatment of sore throat. It is concluded that laboratory studies of characteristics of S. ?yogenes activity are needed in all the patients presenting with tonsillitis in order to elucidate the etiological factors responsible for pharyngalgia and the necessity of prescription of antibacterial therapy for the prevention of pyogenic systemic complications of streptococcal infection. PMID:23887368

Kriukov, A I; Aksenova, A V; Shostak, N A; Briko, N I; Gurov, A V; Kle?menov, D A; Guseva, O A; Nabieva, T T

2013-01-01

410

Developing the Next Generation of International Safeguards and Nonproliferation Experts: Highlights of Select Activities at the National Laboratories  

SciTech Connect

With many safeguards experts in the United States at or near retirement age, and with the growing and evolving mission of international safeguards, attracting and educating a new generation of safeguards experts is an important element of maintaining a credible and capable international safeguards system. The United States National Laboratories, with their rich experience in addressing the technical and policy challenges of international safeguards, are an important resource for attracting, educating, and training future safeguards experts. This presentation highlights some of the safeguards education and professional development activities underway at the National Laboratories. These include university outreach, summer courses, internships, mid-career transition, knowledge retention, and other projects. The presentation concludes with thoughts on the challenge of interdisciplinary education and the recruitment of individuals with the right balance of skills and backgrounds are recruited to meet tomorrow's needs.

Reed, J; Mathews, C; Kirk, B; Lynch, P; Doyle, J; Meek, E; Pepper, S; Metcalf, R

2010-03-31

411

Observational Astronomy for Undergraduate Majors: A Hands-On Approach for Learning Professional Techniques  

NASA Astrophysics Data System (ADS)

We present a lab curriculum for undergraduates designed to provide hands-on experience with telescope operation, CCD imaging, and data reduction and analysis with IRAF. Theoretical concepts involving telescope optics, CCD detector characteristics, apparent motions of celestial objects, and photometric properties of stars were introduced in weekly lectures and were central to each lab. The students worked in groups of five using our department 16-inch classical Cassegrain telescope with its new Optomechanics mount and drive which facilitated target aquisition and tracking. Digital images were obtained using a KX260 Apogee CCD camera and read out with a PC running CCDSoft in the dome. Students transfered their data via ethernet to a new computing lab for undergraduates that has IRAF packages installed on PCs running linux. Using these state of the art tools, students learned techniques of data reduction and analysis used by the professional community. The five exercises were field tested during the spring 2000 semester. Students first characterized the telescope and CCD detector, becoming familiar with all aspects of taking data and preparing for an observing run. Later labs involved photometry of standard stars to establish telescope throughput and photometry of cluster stars in M44 to verify distance using measured B-V colors. \

Doppmann, G.; Hemenway, M. K.

2000-12-01

412

Hands-on at a Distance: Evaluation of a Temperature and Heat Distance Learning Course  

NASA Astrophysics Data System (ADS)

The No Child Left Behind Act requires that all teachers be certified within the content areas that they teach. However, attracting and retaining highly qualified science teachers in rural school districts is particularly difficult due to limited resources and geographic and professional isolation. Science professional development programs could help improve inservice teachers' understanding of concepts they are expected to teach, but such programs are often limited in rural areas. This study evaluates a unique distance learning, inquiry-based professional development course in physical science developed to meet the needs of central Appalachian middle school teachers. Instruction through hands-on inquiry investigations distinguishes this program from other distance learning programs. Preliminary findings from the pilot study reported in this paper reveal significant growth in 43 teachers' content knowledge for six of nine temperature and heat concepts assessed in the course. Outcomes from the distance learning project are discussed as they relate to future research goals and implications for science professional development programs in rural regions.

Krall, Rebecca Mcnall; Straley, Joseph P.; Shafer, Sally A.; Osborn, Jeffrey L.

2009-04-01

413

Rapid-Cycling Brassicas (RCB's) in Hands-on Teaching of Plant Biology  

NSDL National Science Digital Library

This peer reviewed article uses Wisconsin Fast Plants to aid in teaching: development, reproduction, genetics, physiology, and ecology. The development of rapid-cycling brassicas (RCB's) as model organisms for research andeducation is profoundly influencing the quality of science education at all levels by bringingdynamic living materials into the classroom. Most biology courses lack convenient living materials;many use animals predominantly. General and advanced courses in biology, botany, scienceeducation and applied plant sciences usually lack suitable living plant material that would permitstudents to explore plant growth and development, physiology, reproduction, genetics, evolutionand ecology. These speedy relatives of mustard are particularly amenable to classroom settingsbecause they show remarkably rapid development, they flower in 13 to 18 days, theyare small, and they can reproduce at high densities (up to 2500 plants per square meter) underfluorescent lighting in a classroom. The ease with which RCB's can be grown and pollinated,together with the wide array of interesting variants available in the rapid-cycling type, make theseplants particularly attractive to teachers and students. RCB's have far-reaching educationalpotential, from kindergarten through college. Teachers at all levels can help students learn moreabout plant biology through hands-on exploration with these rapidly responding plants.

Paul H. Williams (University of Wisconsin at Madison;)

1988-06-06

414

Modeling Lunar Phases in the Classroom: A Hands-On Interactive Lesson  

NASA Astrophysics Data System (ADS)

Using Power-Point technology and hands-on materials, a 45 minute lesson has been created to allow students to explore the cause of lunar phases. Students work in cooperative pairs to model the different phases of the moon. In addition, this lesson does not require a bright light source. Using a partially painted Styrofoam ball, a small cup of Play-dough, a simple, protractor, and a data collection sheet, students observe the lunar phases and measure the angle between the sun and the moon. Students place the moon model in eight different positions simulating its orbit around the earth and record the observed changes. The Power-Point presentation contains three segments. The first section allows the teacher to determine the students’ level of prior knowledge about the moon and to uncover possible misconceptions. The second section facilitates the students’ learning by displaying the proper alignment of the model and the proper viewing position for the students. Finally, the presentation culminates in a review of what the students have just observed. This lesson has been created to meet Georgia Performance Standards (GPS) for 4th grade science regarding the cause of lunar phases. Teacher and student responses to this lesson have been extremely positive.

Sarrazine, Angela R.

2007-12-01

415

Systems Analysis Programs for Hands-On Integrated Reliability Evaluations (SAPHIRE) Technical Reference  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer (PC) running the Microsoft Windows? operating system. Herein information is provided on the principles used in the construction and operation of Version 6.0 and 7.0 of the SAPHIRE system. This report summarizes the fundamental mathematical concepts of sets and logic, fault trees, and probability. This volume then describes the algorithms used to construct a fault tree and to obtain the minimal cut sets. It gives the formulas used to obtain the probability of the top event from the minimal cut sets, and the formulas for probabilities that apply for various assumptions concerning reparability and mission time. It defines the measures of basic event importance that SAPHIRE can calculate. This volume gives an overview of uncertainty analysis using simple Monte Carlo sampling or Latin Hypercube sampling, and states the algorithms used by this program to generate random basic event probabilities from various distributions. Also covered are enhance capabilities such as seismic analysis, cut set "recovery," end state manipulation, and use of "compound events."

C. L. Smith; W. J. Galyean; S. T. Beck

2008-08-01

416

Systems analysis programs for hands-on integrated reliability evaluations (SAPHIRE), Version 5.0  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) refers to a set of several microcomputer programs that were developed to create and analyze probabilistic risk assessments (PRAs), primarily for nuclear power plants. The Graphical Evaluation Module (GEM) is a special application tool designed for evaluation of operational occurrences using the Accident Sequence Precursor (ASP) program methods. GEM provides the capability for an analyst to quickly and easily perform conditional core damage probability (CCDP) calculations. The analyst can then use the CCDP calculations to determine if the occurrence of an initiating event or a condition adversely impacts safety. It uses models and data developed in the SAPHIRE specially for the ASP program. GEM requires more data than that normally provided in SAPHIRE and will not perform properly with other models or data bases. This is the first release of GEM and the developers of GEM welcome user comments and feedback that will generate ideas for improvements to future versions. GEM is designated as version 5.0 to track GEM codes along with the other SAPHIRE codes as the GEM relies on the same, shared database structure.

Russell, K.D.; Kvarfordt, K.J.; Hoffman, C.L. [Idaho National Engineering Lab., Idaho Falls, ID (United States)] [and others

1995-10-01

417

Systems Analysis Programs for Hands-On Integrated Reliability Evaluations (SAPHIRE) Technical Reference Manual  

SciTech Connect

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) is a software application developed for performing a complete probabilistic risk assessment (PRA) using a personal computer (PC) running the Microsoft Windows? operating system. Herein information is provided on the principles used in the construction and operation of Version 6.0 and 7.0 of the SAPHIRE system. This report summarizes the fundamental mathematical concepts of sets and logic, fault trees, and probability. This volume then describes the algorithms used to construct a fault tree and to obtain the minimal cut sets. It gives the formulas used to obtain the probability of the top event from the minimal cut sets, and the formulas for probabilities that apply for various assumptions concerning reparability and mission time. It defines the measures of basic event importance that SAPHIRE can calculate. This volume gives an overview of uncertainty analysis using simple Monte Carlo sampling or Latin Hypercube sampling, and states the algorithms used by this program to generate random basic event probabilities from various distributions. Also covered are enhance capabilities such as seismic analysis, cut set "recovery," end state manipulation, and use of "compound events."

C. L. Smith; W. J. Galyean; S. T. Beck

2006-07-01

418

HTO and OBT activity concentrations in soil at the historical atmospheric HT release site (Chalk River Laboratories).  

PubMed

Tritium is routinely released by the Chalk River Laboratories (CRL) nuclear facilities. Three International HT release experiments have been conducted at the CRL site in the past. The site has not been disturbed since the last historical atmospheric testing in 1994 and presents an opportunity to assess the retention of tritium in soil. This study is devoted to the measurement of HTO and OBT activity concentration profiles in the subsurface 25 cm of soil. In terms of soil HTO, there is no evidence from the past HT release experiments that HTO was retained. The HTO activity concentration in the soil pore water appears similar to concentrations found in background areas in Ontario. In contrast, OBT activity concentrations in soil at the same site were significantly higher than HTO activity concentrations in soil. Elevated OBT appears to reside in the top layer of the soil (0-5 cm). In addition, OBT activity concentrations in the top soil layer did not fluctuate much with season, again, quite in contrast with soil HTO. This result suggests that OBT activity concentrations retained the signature of the historical tritium releases. PMID:22036156

Kim, S B; Bredlaw, M; Korolevych, V Y

2012-01-01

419

Summer Research Internship Program (FY94) Brookhaven National Laboratory  

SciTech Connect

The Summer Research Internship Program is a new program that allows high school teachers to participate and assist scientific staff at national laboratories in specific research assignments. This participation allows the high school teachers to become familiar with new technology and have ``hands-on`` experience with experiments and equipment which utilize both mathematics and science skills. Teachers also have the opportunity to advance their new and well-developed software. This enlightenment and experience is brought back into their schools and classrooms in the hopes that their peers and students will realize the excitement that knowledge and education in the areas of mathematics and science can bring. The Safeguards, Safety and Nonproliferation Division of the Department of Advanced Technology at Brookhaven National Laboratory utilized five high school teachers during FY94 in various projects. The project assignments and internship activities are outlined in this paper.

Toler, L.T.; Indusi, J.P.

1995-02-01

420

Preparation of Buffers. An Experiment for Quantitative Analysis Laboratory  

NASA Astrophysics Data System (ADS)

In our experience, students who have a solid grounding in the theoretical aspects of buffers, buffer preparation, and buffering capacity are often at a loss when required to actually prepare a buffer in a research setting. However, there are very few published laboratory experiments pertaining to buffers. This laboratory experiment for the undergraduate quantitative analysis lab gives students hands-on experience in the preparation of buffers. By preparing a buffer to a randomly chosen pH value and comparing the theoretical pH to the actual pH, students apply their theoretical understanding of the Henderson-Hasselbalch equation, activity coefficients, and the effect of adding acid or base to a buffer. This experiment gives students experience in buffer preparation for research situations and helps them in advanced courses such as biochemistry where a fundamental knowledge of buffer systems is essential.

Buckley, P. T.

2001-10-01

421

Molluscicidal activities of six species of Bignoniaceae from north-eastern Brazil, as measured against Biomphalaria glabrata under laboratory conditions.  

PubMed

The molluscicidal profile and brine-shrimp bio-activity of the ethanolic extracts of plants from the Bignoniaceae family were determined. The six extracts investigated were of the stems of Melloa quadrivalvis and Tabebuia aurea, and whole plants of Adenocalymma comosum, Arrabidaea parviflora, Cuspidaria argentea and Clytostoma binatum. When tested in the laboratory, with Biomphalaria glabrata as the test snail, all six extracts gave median lethal concentrations (9-54 microg/ml) that fell well below the upper threshold, of 100 mug/ml, set for a potential molluscicide by the World Health Organization. PMID:17524251

Silva, T M S; Da Silva, T G; Martins, R M; Maia, G L A; Cabral, A G S; Camara, C A; Agra, M F; Barbosa-Filho, J M

2007-06-01

422

The serum complement system: a simplified laboratory exercise to measure the activity of an important component of the immune system  

NSDL National Science Digital Library

The immune system is a vital physiological component that affords animals protection from disease and is composed of innate and adaptive mechanisms that rely on cellular and dissolved components. The serum complement system is a series of dissolved proteins that protect against a variety of pathogens. The activity of complement in serum can be determined by its ability to lyse red blood cells in vitro. Here, we describe a modification of a standard complement hemolysis assay that makes an interesting and informative laboratory exercise suitable for a variety of courses including physiology.

Kimberley A Radziwon (Stonehill College Biology); Gregory D Maniero (Stonehill College Biology)

2008-12-01

423

A report on IPv6 deployment activities and issues at Sandia National Laboratories:FY2007.  

SciTech Connect

Internet Protocol version 4 (IPv4) has been a mainstay of the both the Internet and corporate networks for delivering network packets to the desired destination. However, rapid proliferation of network appliances, evolution of corporate networks, and the expanding Internet has begun to stress the limitations of the protocol. Internet Protocol version 6 (IPv6) is the replacement protocol that overcomes the constraints of IPv4. As the emerging Internet network protocol, SNL needs to prepare for its eventual deployment in international, national, customer, and local networks. Additionally, the United States Office of Management and Budget has mandated that IPv6 deployment in government network backbones occurs by 2008. This paper explores the readiness of the Sandia National Laboratories network backbone to support IPv6, the issues that must be addressed before a deployment begins, and recommends the next steps to take to comply with government mandates. The paper describes a joint work effort of the Sandia National Laboratories ASC WAN project team and members of the System Analysis & Trouble Resolution, the Communication & Network Systems, and Network System Design & Implementation Departments.

Tolendino, Lawrence F.; Eldridge, John M.; Hu, Tan Chang; Maestas, Joseph H.

2007-06-01

424

Dynamic active telepathology over National Health Laboratory service network, South Africa: feasibility study using Nikon Coolscope  

PubMed Central

Telepathology recently entered a new era with the introduction of digital microscopes combined with Internet technology. The microscope allows viewing real time of whole slide (macro) as well as different chosen fields in four different magnifications. Three Nikon Coolscope were installed in NHLS laboratories in Mthatha, East London and Port Elizabeth. All these microscopes are connected to NHLS server allowing real time viewing of the full slide at any time of the day using Internet browser. Viewing is possible from any PC connected to NHLS Intranet. The challenge was to be able to view slides from other than NHLS computers due to NHLS IT Department network security measures. This was solved by installing NHLS Virtual Private Network server. About 60 cases were viewed by pathologists in Cape Town (Stellenbosh University) and Pretoria (MEDUNSA). All users assessed the system as a helpful tool allowing easy access to cases needing consultation or second opinion. The quality of images was very good. Our experience with Nikon Coolscope is positive. It is an excellent tool for remote small histopathology departments lacking specialists in such areas as dermatopathology, oncology, and haematopathology. Further studies are needed especially in the scope of full utilization of the microscopes installed and impact on laboratory services. PMID:18673517

Banach, Lech; Stepien, Andrzej; Schneider, Johann; Wichrzycka-Lancaster, Elizabeth

2008-01-01

425

Paleomagnetics Laboratory  

NSDL National Science Digital Library

At this website, the California Institute of Technology's Paleomagnetics Laboratory promotes its research of weakly magnetic geologic and biological materials. Users can learn about the facilities such as the biomagnetics lab and the automatic sampler. The website features the laboratory's recent research on many topics including extraterrestrial magnetism, magnetofossils, and historical geomagnetic field behavior. Visitors can find out more about the many laboratory members' research activities through links to their home pages. Researchers can download a selection of the group's publications. Everyone can enjoy the amazing images from recent geologic field trips across the globe.

426

Monitoring Animal Activity Rhythms in the Laboratory: Four Easily Assembled Devices.  

ERIC Educational Resources Information Center

The use of actographs for studying animal activity is discussed. Described are running recorders for rodents, perching and feeding recorders for birds, and tilting box recorders for studying the movement of reptiles, amphibians, and arthropods. (CW)

Merritt, Sheridan V.

1989-01-01

427

Building the Body: Active Learning Laboratories that Emphasize Practical Aspects of Anatomy and Integration with Radiology  

NSDL National Science Digital Library

This article describes the development of active learning techniques to review anatomy material in the context of radiology. Explanations of how the curriculum was designed to integrate knowledge and reemphasize concepts in different contexts is explained.

Kitt Shaffer (Boston University Radiology)

2010-04-23

428

When Is a Laboratory a Laboratory?  

ERIC Educational Resources Information Center

Gives advice on the legal necessity of safety planning for school science (or other) laboratories. Recommends looking into governmental definitions of the term "laboratory" to determine which educational activities should be covered by safety planning. (WRM)

Roy, Ken

1999-01-01

429

Comparative field study: impact of laboratory assay variability on the assessment of recombinant factor IX Fc fusion protein (rFIXFc) activity.  

PubMed

Due to variability in the one-stage clotting assay, the performance of new factor IX (FIX) products should be assessed in this assay. The objective of this field study was to evaluate the accuracy of measuring recombinant FIX Fc fusion protein (rFIXFc) activity in clinical haemostasis laboratories using the one-stage clotting assay. Human haemophilic donor plasma was spiked with rFIXFc or BeneFIX® at 0.80, 0.20, or 0.05 IU/ml based on label potency. Laboratories tested blinded samples using their routine one-stage assay and in-house FIX plasma standard. The mean spike recoveries for BeneFIX (n=30 laboratories) were 121?%, 144?%, and 168?% of expected at nominal 0.80, 0.20, and 0.05 IU/ml concentrations, respectively. Corresponding rFIXFc spike recoveries were 88?%, 107?%, and 132?% of expected, respectively. All BeneFIX concentrations were consistently overestimated by most laboratories. rFIXFc activity was reagent-dependent; ellagic acid and silica gave higher values than kaolin, which underestimated rFIXFc. BeneFIX demonstrated significantly reduced chromogenic assay activity relative to one-stage assay results and nominal activity, while rFIXFc activity was close to nominal activity at three concentrations with better dilution linearity than the typical one-stage assay. In conclusion, laboratory- and reagent-specific assay variabilities were revealed, with progressively higher variability at lower FIX concentrations. Non-parallelism against the FIX plasma standard was observed in all one-stage assays with rFIXFc and BeneFIX, leading to significant overestimation of FIX activity at lower levels and generally high inter-laboratory variability. Compared to the accuracy currently achieved in clinical laboratories when measuring other rFIX products, most laboratories measured rFIXFc activity with acceptable accuracy and reliability using routine one-stage assay methods and commercially available plasma standards. PMID:25144892

Sommer, Jurg M; Buyue, Yang; Bardan, Sara; Peters, Robert T; Jiang, Haiyan; Kamphaus, George D; Gray, Elaine; Pierce, Glenn F

2014-11-01

430

Evaluating Astronomy Laboratories  

NASA Astrophysics Data System (ADS)

A set of non-traditional astronomy laboratories for non-science majors will be presented along with evaluations of lab technicians (these labs were originally developed at the College of Staten Island of the City University of New York). The goal of these labs is twofold: (a) to provide the students with hands-on experiences of scientific methodology and (b) to provoke critical thinking. Because non-science majors are often rather resistant to learning the relevant methodology - and especially to thinking critically - this manual is structured differently. It does not only provide traditional cook-book recipes but also contains several leading questions to make the students realize why they are doing what. The students are encouraged to write full sentences and explain how they reach which conclusions. This poster summarizes the experiences of the laboratory assistants that worked with the instructor and presents how they judge the effectiveness of the laboratories.

Zirbel, E. L.

2002-12-01

431

Application of on-line laboratory computer analysis to fast neutron activation oxygen determinations  

SciTech Connect

The development of an on-line laboratory computer analysis system designed for routine high volume oxygen determinations is discussed. The system is based on the detection of /sup 16/N photopeaks from the /sup 16/O(n,p) /sup 16/N reaction occurring during fast neutron irradiation. A system interface has been designed and constructed which is capable of controlling the Kaman 710 neutron generator, the sample transfer system, switching the BF/sub 3/ beam monitor detector or NaI(T1) detector outputs as required to a multichannel scaling MCA, and proper sequencing of the procedure. In addition, specific software has been developed for the control of the system during acquisition as well as evaluation of the MCS spectra generated.

James, W.D.; Akanni, M.S.

1983-04-01

432

Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles  

NASA Astrophysics Data System (ADS)

Data from both laboratory studies and atmospheric measurements are used to develop an empirical parameterization for the immersion freezing activity of natural mineral dust particles. Measurements made with the Colorado State University (CSU) continuous flow diffusion chamber (CFDC) when processing mineral dust aerosols at a nominal 105% relative humidity with respect to water (RHw) are taken as a measure of the immersion freezing nucleation activity of particles. Ice active frozen fractions vs. temperature for dusts representative of Saharan and Asian desert sources were consistent with similar measurements in atmospheric dust plumes for a limited set of comparisons available. The parameterization developed follows the form of one suggested previously for atmospheric particles of non-specific composition in quantifying ice nucleating particle concentrations as functions of temperature and the total number concentration of particles larger than 0.5 ?m diameter. Such an approach does not explicitly account for surface area and time dependencies for ice nucleation, but sufficiently encapsulates the activation properties for potential use in regional and global modeling simulations, and possible application in developing remote sensing retrievals for ice nucleating particles. A calibration factor is introduced to account for the apparent underestimate (by approximately 3, on average) of the immersion freezing fraction of mineral dust particles for CSU CFDC data processed at an RHw of 105% vs. maximum fractions active at higher RHw. Instrumental factors that affect activation behavior vs. RHw in CFDC instruments remain to be fully explored in future studies. Nevertheless, the use of this calibration factor is supported by comparison to ice activation data obtained for the same aerosols from Aerosol Interactions and Dynamics of the Atmosphere (AIDA) expansion chamber cloud parcel experiments. Further comparison of the new parameterization, including calibration correction, to predictions of the immersion freezing surface active site density parameterization for mineral dust particles, developed separately from AIDA experimental data alone, shows excellent agreement for data collected in a descent through a Saharan aerosol layer. These studies support the utility of laboratory measurements to obtain atmospherically relevant data on the ice nucleation properties of dust and other particle types, and suggest the suitability of considering all mineral dust as a single type of ice nucleating particle as a useful first-order approximation in numerical modeling investigations.

DeMott, P. J.; Prenni, A. J.; McMeeking, G. R.; Sullivan, R. C.; Petters, M. D.; Tobo, Y.; Niemand, M.; Möhler, O.; Snider, J. R.; Wang, Z.; Kreidenweis, S. M.

2015-01-01

433

Environmental Survey preliminary report, Department of Energy (DOE) activities at Santa Susana Field Laboratories, Ventura County, California  

SciTech Connect

This report presents the preliminary findings from the first phase of the Environmental Survey of the United States Department of Energy (DOE) activities at the Santa Susana Field Laboratories Site (DOE/SSFL), conducted May 16 through 26, 1988. The Survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Individual participants for the Survey team are being supplied by an private contractor. The objective of the survey is to identify environmental problems and areas of environmental risk associated with DOE activities at SSFL. The Survey covers all environmental media and all areas of environmental regulation. It is being performed in accordance with the DOE Environmental Survey Manual. This phase of the Survey involves the review of existing site environmental data, observations of the operations performed at SSFL, and interviews with site personnel. 90 refs., 17 figs., 28 tabs.

Not Available

1989-02-01

434

Bacterial Population Dynamics in a Laboratory Activated Sludge Reactor Monitored by Pyrosequencing of 16S rRNA  

PubMed Central

The microbial population in a laboratory activated sludge reactor was monitored for 245 d at 75 time points by pyrosequencing of 16S rRNA. Synthetic wastewater was used as the influent, and the reactor was operated under the same conditions throughout the experiment. The behaviors of different bacterial operational taxonomic units (OTUs) were observed. Multiple OTUs showed periodic propagation and recession. One of the OTUs showed sharp recession, which suggests that cells in the OTU were selectively killed. The behaviors of different phylogenetic lineages of Candidatus ‘Accumulibacter phosphatis’ were also visualized. It was clearly demonstrated that pyrosequencing with barcoded primers is a very effective tool to clarify the dynamics of the bacterial population in activated sludge. PMID:23100021

Satoh, Hiroyasu; Oshima, Kenshiro; Suda, Wataru; Ranasinghe, Purnika; Li, Ning; Gunawardana, Egodaha Gedara Wasana; Hattori, Masahira; Mino, Takashi

2013-01-01

435

Preliminary Results of Gender Equity Variations in a Large Active-Learning Introductory Physics Course Due to Laboratory Activity Instructions  

NSDL National Science Digital Library

In the UC Davis introductory physics course for life science majors, variations in lab activity instructions were introduced to investigate their influence on gender performance differences. Systematic instructions were compared to unguided, open-ended instructions. On preliminary examination, the performance difference between females and males was unaffected by the different instructions. However, there is some evidence that the open-ended instructions did increase students' conceptual understanding in general.

Mckinnon, Mark L.; Potter, Wendell H.

2010-01-18

436

What's the Matter with Food?: A Hands-On Action Research Study on the Effect of Using Food Preparation To Teach Students with Autism about the Three States of Matter  

NASA Astrophysics Data System (ADS)

This investigation studied the effectiveness of using food preparation to teach students with Autism about the three states of matter. A hands-on learning approach was used within the home and careers classroom. One class of five students, three boys and two girls, all diagnosed with Autism, participated in a five day academic unit about the three phases of matter: solid, liquid, and gas. The class received hands-on learning science instruction using food through various differentiated activities. Results indicate that students express focus when using food to learn. In addition, this study acknowledges that hands-on learning in science enhances the learning process of students with Autism. One of the main reasons is that students enjoy learning when this teaching style is used in the classroom, and students that enjoy what they are learning are more likely to be engaged and motivated to learn. After using this approach, all the students in the study increased their scores from the pre-assessments to the post-assessments. Students expressed through actions and words that they enjoyed using hands-on experiences to learn in the classroom. Implications for practice indicate that a variety of manipulatives are needed to teach students with Autism. Future research would help uncover additional information about student motivation and learning in the home and careers classroom.

Diller, Nicole

437

Microseismic activity and fluid fault interactions: some results from the Corinth Rift Laboratory (CRL), Greece  

NASA Astrophysics Data System (ADS)

The Gulf of Corinth, in western-central Greece, is one of the fastest continental rifts in the world. In its western section near the city of Aigion, the previous work has outlined the existence of a shallow dipping seismogenic zone between 5 and 12 km. This seismic activity has been monitored with a network of 12 three-component stations for the period 2000-2007. Three, few months long, seismic swarms have been observed. They mobilize a complex structural fault system that associates both shallow dipping elements and subvertical structures with very different azimuths, some of which extend to depths greater than that of the shallow dipping zone. The swarm activity associates intensely active, short crises (a few days) with more quiescent periods. The long-term growth velocity of the seismically activated domains is compatible with a fluid diffusion process. Its characteristics are discussed in the context of the results from the 1000 m deep AIG10 well that intersects the Aigion Fault at 760 m. The vertical growth directions of the seismically activated volumes outline two different sources for the fluid and imply non-steady pressure conditions within the seismic domain. The diffusivity along the cataclastic zone of the faults is in the order of 1 m2 s-1, while faults act as hydraulic barrier in the direction perpendicular to their strike. If the vertical direction is a principal stress component, the high pore pressure values that must be reached to induce slip on the shallowly dipping planes can result only from transitory dynamic conditions. It is argued that the shallow dipping active seismic zone is only local and does not correspond to a 100 km scale decollement zone. We propose to associate the localization process with deep fluid fluxes that have progressively modified the local stress field and may be the cause for the quiescence of the West Heliki Fault presently observed.

Bourouis, S.; Cornet, F. H.

2009-07-01

438

Fifth Graders' Science Inquiry Abilities: A Comparative Study of Students in Hands-On and Textbook Curricula  

ERIC Educational Resources Information Center

A large number of American elementary school students are now studying science using the hands-on inquiry curricula developed in the 1990s: Insights; Full Option Science System (FOSS); and Science and Technology for Children (STC). A goal of these programs, echoed in the "National Science Education Standards," is that children should gain…

Pine, Jerome; Aschbacher, Pamela; Roth, Ellen; Jones, Melanie; McPhee, Cameron; Martin, Catherine; Phelps, Scott; Kyle, Tara; Foley, Brian

2006-01-01

439

An Experimental Comparison of Two Methods Of Teaching Numerical Control Manual Programming Concepts; Visual Media Versus Hands-On Equipment.  

ERIC Educational Resources Information Center

Accompanying the rapid changes in technology has been a greater dependence on automation and numerical control, which has resulted in the need to find ways of preparing programers for industrial machines using numerical control. To compare the hands-on equipment method and a visual media method of teaching numerical control, an experimental and a…

Biekert, Russell

440

The Chemical Engineering behind How Carbonated Beverages Go Flat: A Hands-On Experiment for Freshmen Students  

ERIC Educational Resources Information Center

A hands-on project was developed to educate new chemical engineering students about the types of problems chemical engineers solve and to improve student enthusiasm for studying chemical engineering. In this project, students studied the phenomenon of carbonated beverages going flat. The project was implemented in 2003 and 2004 at Kansas State…

Hohn, Keith L.

2007-01-01

441

Meteorites: Rocks from Space Bob will share his passion with a hands on presentation on everything you ever wanted to  

E-print Network

Meteorites: Rocks from Space Bob will share his passion with a hands on presentation on everything of meteorites and the special fourth class of "meteorwrongs." He also invites visitors who think they may have found a meteorite to bring it to the festival so he can help determine whether or not it's genuine

442

The Molecular Boat: A Hands-On Experiment to Demonstrate the Forces Applied to Self-assembled Monolayers at Interfaces  

E-print Network

The Molecular Boat: A Hands-On Experiment to Demonstrate the Forces Applied to Self- assembled of the silica in a condensation reaction to form self-assembled monolayers (SAMs) (Fig. 1S). The alterations to the wetting behavior and the floatation are quantified by determining the force of gravity when the forces

Salaita, Khalid

443

Exploding Balloons, Deformed Balls, Strange Reflections and Breaking Rods: Slow Motion Analysis of Selected Hands-On Experiments  

ERIC Educational Resources Information Center

A selection of hands-on experiments from different fields of physics, which happen too fast for the eye or video cameras to properly observe and analyse the phenomena, is presented. They are recorded and analysed using modern high speed cameras. Two types of cameras were used: the first were rather inexpensive consumer products such as Casio…

Vollmer, Michael; Mollmann, Klaus-Peter

2011-01-01

444

Increased Learning of Physical Science Concepts via Multimedia Exhibit Compared to Hands-On Exhibit in a Science Museum.  

ERIC Educational Resources Information Center

The purpose of this study was to determine whether the use of an interactive multimedia exhibit is more effective than a traditional hands-on exhibit in teaching physical science in a museum setting. The Simple Machine exhibit, a permanent display at the East Tennessee Discovery Center, was used as a comparison with an interactive computer…

Ayres, Roberta; Melear, Claudia T.

445

Hands-on teaching of embedded systems design using FPGA-Based tPad development kit  

Microsoft Academic Search

Modern embedded systems design relies on heavy use of Intellectual Property (IP) and involves both hardware and software design. Moreover, three is an increasing unitization of a diverse set of I\\/O ports in embedded systems including video, audio, Ethernet, etc. In order to reflect these trends in education in a hands-on manner, a platform is needed that allows fast integration

Hamid Mahmoodi; Arturo Montoya; Joie du Franco; Chris Rodriguez; Jose Carrillo; Ankita Goel; Cheng Chen; Amelito G. Enriquez; Hao Jiang; Wenshen Pong; Hamid Shanasser

2012-01-01

446

The Molecular Boat: A Hands-On Experiment to Demonstrate the Forces Applied to Self-Assembled Monolayers at Interfaces  

ERIC Educational Resources Information Center

Demonstrating how surface chemistry and self-assembled monolayers (SAMs) control the macroscopic properties of materials is challenging as it often necessitates the use of specialized instrumentation. In this hands-on experiment, students directly measure a macroscopic property, the floatation of glass coverslips on water as a function of…

Chan, Charlene J.; Salaita, Khalid

2012-01-01

447

NOAA COMMUNITY-BASED RESTORATION PROGRAM PORTFOLIO OF SUCCESS Hands on HabitatCELEBRATING 10 YEARS OF COASTAL RESTORATION  

E-print Network

NOAA COMMUNITY-BASED RESTORATION PROGRAM PORTFOLIO OF SUCCESS Hands on HabitatCELEBRATING 10 YEARS OF COASTAL RESTORATION #12;Mission The NOAA Restoration Center restores habitats for the nation's living marine resources. Through partnerships, the Restoration Center restores degraded habitats; advances

448

Interactive Web-Based and Hands-On Engineering Education: A Freshman Aerospace Design Course at MIT.  

ERIC Educational Resources Information Center

"Introduction to Aerospace and Design" is a 3-hour per week freshman elective course at Massachusetts Institute of Technology (MIT) that culminates in a Lighter-Than-Air (LTA) vehicle design competition, exposing freshmen to the excitement of aerospace engineering design typically taught in the junior or senior years. In addition to the hands-on

Newman, Dava J.

449

Integrating science, environmental education, public outreach, conservation, and capacity-building through hands-on bird ecology  

E-print Network

-building through hands-on bird ecology research at the Rio Mesa Center Cagan H. Sekercioglu & Evan R. Buechley of the demographics of the bird communities to determine population trends for resident species. Furthermore and conservation. We welcome and encourage participation by visitors to Rio Mesa in our bird banding operations

Tipple, Brett

450

Maternal Knowledge and Behaviors regarding Discipline: The Effectiveness of a Hands-On Education Program in Positive Guidance  

ERIC Educational Resources Information Center

This study examined which method is most effective in supporting parents to use positive guidance techniques, a lecture-based only parent training series or a lecture-based plus hands-on parent training series. Maternal characteristics of depression, stress level, and attitudes towards positive guidance were explored as possible moderators. In…

Saunders, Rachel; McFarland-Piazza, Laura; Jacobvitz, Deborah; Hazen-Swann, Nancy; Burton, Rosalinda

2013-01-01

451

Fifth graders' science inquiry abilities: A comparative study of students in hands-on and textbook curricula  

NSDL National Science Digital Library

A large number of American elementary school students are now studying science using the hands-on inquiry curricula developed in the 1990s: Insights; Full Option Science System (FOSS); and Science and Technology for Children (STC). A goal of these programs, echoed in the National Science Education Standards, is that children should gain abilities to do scientific inquiry and understanding about scientific inquiry. We have studied the degree to which students can do inquiries by using four hands-on performance assessments, which required one or three class periods. To be fair, the assessments avoided content that is studied in depth in the hands-on programs. For a sample of about 1000 fifth grade students, we compared the performance of students in hands-on curricula with an equal number of students with textbook curricula. The students were from 41 classrooms in nine school districts. The results show little or no curricular effect. There was a strong dependence on students' cognitive ability, as measured with a standard multiple-choice instrument. There was no significant difference between boys and girls. Also, there was no difference on a multiple-choice test, which used items released from the Trends in International Mathematics and Science Study (TIMSS). It is not completely clear whether the lack of difference on the performance assessments was a consequence of the assessments, the curricula, and/or the teaching.

Pine, Jerome; Aschbacher, Pamela; Roth, Ellen; Jones, Melanie; Mcphee, Cameron; Martin, Catherine

2006-06-08

452

How Science Texts and Hands-on Explorations Facilitate Meaning Making: Learning from Latina/o Third Graders  

ERIC Educational Resources Information Center

In this study, we examined opportunities for reasoning and meaning making that read-alouds of children's literature science information books and related hands-on explorations offered to young Latina/o students in an urban public school. Using a qualitative, interpretative framework, we analyzed classroom discourse and children's writing…

Varelas, Maria; Pieper, Lynne; Arsenault, Amy; Pappas, Christine C.; Keblawe-Shamah, Neveen

2014-01-01

453

All Hands on Deck: Involving the Entire Faculty in Teaching Basic Skills.  

ERIC Educational Resources Information Center

The English department at Central College (Pella, Iowa) has implemented a program that involves the entire faculty in the development of students' basic skills. The program's support system for students and faculty includes the following components: a skills laboratory staffed by a full-time skills coordinator and by trained student tutors…

Fassler, Barbara

454

Affordable Hands-On DNA Sequencing and Genotyping: An Exercise for Teaching DNA Analysis to Undergraduates  

ERIC Educational Resources Information Center

In this report, we describe a 5-week laboratory exercise for undergraduate biology and biochemistry students in which students learn to sequence DNA and to genotype their DNA for selected single nucleotide polymorphisms (SNPs). Students use miniaturized DNA sequencing gels that require approximately 8 min to run. The students perform G, A, T, C…

Shah, Kushani; Thomas, Shelby; Stein, Arnold

2013-01-01

455

Solar Collector Design Optimization: A Hands-on Project Case Study  

ERIC Educational Resources Information Center

A solar power collector optimization design project has been developed for use in undergraduate classrooms and/or laboratories. The design optimization depends on understanding the current-voltage characteristics of the starting photovoltaic cells as well as how the cell's electrical response changes with increased light illumination. Students…

Birnie, Dunbar P., III; Kaz, David M.; Berman, Elena A.

2012-01-01

456

Assembly of a Vacuum Chamber: A Hands-On Approach to Introduce Mass Spectrometry  

ERIC Educational Resources Information Center

Although vacuum technology is essential to many aspects of modern physical and analytical chemistry, vacuum experiments are rarely the focus of undergraduate laboratories. We describe an experiment that introduces students to vacuum science and mass spectrometry. The students first assemble a vacuum system, including a mass spectrometer. While…

Bussie`re, Guillaume; Stoodley, Robin; Yajima, Kano; Bagai, Abhimanyu; Popowich, Aleksandra K.; Matthews, Nicholas E.

2014-01-01

457

The Opinions of Turkish Highschool Pupils on Inquiry Based Laboratory Activities  

ERIC Educational Resources Information Center

The purpose of this study is to prepare inquiry based experimental activities on the photosynthesis, thought to be a very difficult subject by pupils, and to determine the pupil's ideas towards this method. This study was made with 24 pupils from Grade 3 at Ataturk Anatolian High school in Turkey. As data gathering material; seven inquiry…

Kilinc, Ahmet

2007-01-01

458

Workout at Work: Laboratory Test of Psychological and Performance Outcomes of Active Workstations.  

PubMed

With growing concerns over the obesity epidemic in the United States and other developed countries, many organizations have taken steps to incorporate healthy workplace practices. However, most workers are still sedentary throughout the day-a major contributor to individual weight gain. The current study sought to gather preliminary evidence of the efficacy of active workstations, which are a possible intervention that could increase employees' physical activity while they are working. We conducted an experimental study, in which boredom, task satisfaction, stress, arousal, and performance were evaluated and compared across 4 randomly assigned conditions: seated workstation, standing workstation, cycling workstation, and walking workstation. Additionally, body mass index (BMI) and exercise habits were examined as moderators to determine whether differences in these variables would relate to increased benefits in active conditions. The results (n = 180) showed general support for the benefits of walking workstations, whereby participants in the walking condition had higher satisfaction and arousal and experienced less boredom and stress than those in the passive conditions. Cycling workstations, on the other hand, tended to relate to reduced satisfaction and performance when compared with other conditions. The moderators did not impact these relationships, indicating that walking workstations might have psychological benefits to individuals, regardless of BMI and exercise habits. The results of this study are a preliminary step in understanding the work implications of active workstations. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:25347682

Sliter, Michael; Yuan, Zhenyu

2014-10-27

459

Building the Body: Active Learning Laboratories that Emphasize Practical Aspects of Anatomy and Integration with Radiology  

ERIC Educational Resources Information Center

Active learning exercises were developed to allow advanced medical students to revisit and review anatomy in a clinically meaningful context. In our curriculum, students learn anatomy two to three years before they participate in the radiology clerkship. These educational exercises are designed to review anatomy content while highlighting its…

Zumwalt, Ann C.; Lufler, Rebecca S.; Monteiro, Joseph; Shaffer, Kitt

2010-01-01

460

Assisting in the Medical Laboratory. Instructor's Guide, Students' Manual, and Student Learning Activities.  

ERIC Educational Resources Information Center

The instructor's guide, the first of three documents in this package, is for a course to help students who are investigating the activities within a hospital, clinic, or physician's office. The material is designed to relate training experience to information studied in the classroom. The course is intended for individualized study and is…

Fair, Helena J.

461

A Hands-on Exercise in Building Darcy Tubes to Improve Student Understanding of Groundwater Flow  

NASA Astrophysics Data System (ADS)

Teaching undergraduate students about sustainability typically includes discussions of water resources and the flow of groundwater in aquifers. Understanding the flow of groundwater is a fundamental step for students, but one that can easily get mired in equations (e.g., Darcy's Law). In an effort to transform Darcy's Law, which describes flow of fluid through a porous medium, from an abstract concept to a hands-on experiment, I had undergraduate students build working "Darcy tubes" and calculate hydraulic conductivity during a three-hour lab period. At the beginning of the lab period, I presented the students with the materials: three pairs of plastic soda bottles with straight sides, glass tubing, pantyhose (for screens), rubber hosing, sieved sand in three grain sizes (1-2 mm, 0.5-1.0 mm, and 0.25-0.5 mm), and various types of tape and adhesive. After we discussed the basic design of a Darcy tube (inlet and outlet, with two piezometers), the students went to work. Real-time problem-solving was an integral (and exciting) part of the exercise. Within two hours, they had built three Darcy tubes, each filled with a different sand size. The students determined the cross-sectional area of each tube (A) and the distance between the two piezometers (L). We then ran the experiments, using tinted water so that we could more easily tell when the sand in the tubes was saturated. We measured discharge (Q) through the tube and marked the height of the water in each piezometer to calculate difference in hydraulic head (?h). With the data we had collected, the students were able to calculate hydraulic conductivity (K) using a simple form of Darcy's Law: Q = -KA (?h/L). Despite the simplicity of the Darcy tubes, the students' K values were reasonable for the sediment types that we used. Student comments on the Darcy tube exercise were overwhelmingly positive. The Darcy tubes could be used in a subsequent lab period for exploration of more advanced concepts, such as breakthrough of contaminants (add water of a different color and collect outflow samples at timed intervals).; One of the Darcy tubes built by undergraduate students.

Smith, J. A.

2012-12-01

462

Assessment of a hands-on method for FAMACHA© system training.  

PubMed

The FAMACHA(©) system is a method for selective anthelmintic treatment comprising early detection of haemonchosis in sheep and goats. In order to evaluate the hands-on training methodology and the learning level of the participants, we analyzed data from 30 training events involving 47 training classes conducted in the State of Paraná, Brazil, from July/2009 to May/2011, during which period a total of 1004 participants did 20,080 FAMACHA(©) classifications. In the practical training sessions, each participant individually evaluated 20 animals with known haematocrit values. Every participant per training event was given a unique number, whereupon each of the animals in a given event was FAMACHA(©) classified by all the trainees involved, in the same trainee number sequence. After each consecutive animal had been evaluated by every one of the participants, its haematocrit and corresponding FAMACHA(©) category were announced before the next animal was presented. The number of persons in training, which ranged from 5 to 39 per session, did not significantly affect the average error of the groups of participants involved (p>0.05). The average error in the classification of the first animal on a scale with a perfect score of zero was 2.5, significantly greater than the error of 0.56 of the twentieth one (p<0.05), indicating an inverse relationship between the error and the cumulative number of animals already evaluated by each trainee involved, with the reduction in mean error per animal in a given training event found by linear regression to be 0.0713. When the same animal was assessed twice in the same training event, the average error of the second evaluation (1.05) was significantly lower than the 1.70 of the first (p<0.05). While the total of 686 sheep used in the training events (73%) was considerably larger than the corresponding number of 254 goats (27%), the average statistical errors, respectively, 1.34 and 1.23, were not significantly different (p>0.05). Similarly, the average errors in FAMACHA(©) classification were not significantly influenced by the occupation or gender of the participants, nor whether there were animals in all five FAMACHA(©) categories or only in categories 1, 2, 3 and 4 per training event (p>0.05). PMID:24332960

Maia, Dhéri; Rosalinski-Moraes, Fernanda; van Wyk, Jan Aucamp; Weber, Saulo; Sotomaior, Cristina Santos

2014-02-24

463

Hands-on earth science with students at schools for the Deaf  

NASA Astrophysics Data System (ADS)

Earth science teachers at schools for the Deaf face a variety of challenges. This community of students has a wide range of language skills, teaching resources can be limited and often teachers are not trained in geosciences. An NSF CAREER grant provided an opportunity to make a difference to this community and foster earth science learning at 8 schools for the Deaf around the country. We designed hands-on deformational sandboxes for the teachers and provided accompanying curriculum materials. The sandbox is a physical model of crustal deformation that students can manipulate to test hypotheses. The visual nature of the sandbox was well-suited for the spatial grammar of American Sign Language used by these students. Furthermore, language skills were enhanced by scaffolded observation, sketch, annotation, discussion, interpretation assignments. Geoscience training of teachers was strengthened with workshops and three 5-day field trips for teachers and selected students to Utah, western New England and southern California. The field trips provided opportunity for students to work as geoscientists observing, interpreting, discussing and presenting their investigations. Between field trips, we set up videoconferences from the UMass experimental lab with the high school earth science classrooms. These sessions facilitated dialog between students and researchers at UMass. While the project set out to provide geoscience learning opportunities for students at Schools for the Deaf, the long lasting impact was the improved geoscience training of teachers, most of whom had limited post-secondary earth science training. The success of the project also rested on the dedication of the teachers to their students and their willingness to try new approaches and experiences. By tapping into a community of 6 teachers, who already shared curriculum and had fantastic leadership, the project was able to have significant impact and exceed the initial goals. The project has led to a manuscript in Science Teacher on the educational benefits of the deformational sandbox. At the 2009 GSA meeting, we ran a workshop on the deformational sandbox that included teachers from hearing schools. The project also highlights the potential for a cognitive science investigation on learning of 3D geologic concepts by people who use a language with spatial grammar, such as ASL.

Cooke, M. L.

2011-12-01

464

A programmable laboratory testbed in support of evaluation of functional brain activation and connectivity.  

PubMed

An important determinant of the value of quantitative neuroimaging studies is the reliability of the derived information, which is a function of the data collection conditions. Near infrared spectroscopy (NIRS) and electroencelphalography are independent sensing domains that are well suited to explore principal elements of the brain's response to neuroactivation, and whose integration supports development of compact, even wearable, systems suitable for use in open environments. In an effort to maximize the translatability and utility of such resources, we have established an experimental laboratory testbed that supports measures and analysis of simulated macroscopic bioelectric and hemodynamic responses of the brain. Principal elements of the testbed include 1) a programmable anthropomorphic head phantom containing a multisignal source array embedded within a matrix that approximates the background optical and bioelectric properties of the brain, 2) integrated translatable headgear that support multimodal studies, and 3) an integrated data analysis environment that supports anatomically based mapping of experiment-derived measures that are directly and not directly observable. Here, we present a description of system components and fabrication, an overview of the analysis environment, and findings from a representative study that document the ability to experimentally validate effective connectivity models based on NIRS tomography. PMID:22438333

Barbour, Randall L; Graber, Harry L; Xu, Yong; Pei, Yaling; Schmitz, Christoph H; Pfeil, Douglas S; Tyagi, Anandita; Andronica, Randy; Lee, Daniel C; Barbour, San-Lian S; Nichols, J David; Pflieger, Mark E

2012-03-01

465

Biodegradation of plastics in soil and effects on nitrification activity. A laboratory approach  

PubMed Central

The progressive application of new biodegradable plastics in agriculture calls for improved testing approaches to assure their environmental safety. Full biodegradation (?90%) prevents accumulation in soil, which is the first tier of testing. The application of specific ecotoxicity tests is the second tier of testing needed to show safety for the soil ecosystem. Soil microbial nitrification is widely used as a bioindicator for evaluating the impact of chemicals on soil but it is not applied for evaluating the impact of biodegradable plastics. In this work the International Standard test for biodegradation of plastics in soil (ISO 17556, 2012) was applied both to measure biodegradation and to prepare soil samples needed for a subsequent nitrification test based on another International Standard (ISO 14238, 2012). The plastic mulch film tested in this work showed full biodegradability and no inhibition of the nitrification potential of the soil in comparison with the controls. The laboratory approach suggested in this Technology Report enables (i) to follow the course of biodegradation, (ii) a strict control of variables and environmental conditions, (iii) the application of very high concentrations of test material (to maximize the possible effects). This testing approach could be taken into consideration in improved testing schemes aimed at defining the biodegradability of plastics in soil. PMID:25566223

Bettas Ardisson, Giulia; Tosin, Maurizio; Barbale, Marco; Degli-Innocenti, Francesco

2014-01-01

466

Ecological risk assessment of substances with suspected estrogenic activity using standard laboratory fish tests  

SciTech Connect

The assessment of risks to the aquatic environment in the European Union is generally based on a comparison of Predicted Environmental Concentrations (PEC) with Predicted No Effect Concentrations (PNEC) for surrogate, or representative, organisms of the receiving waters. Such risk assessments are required for new and priority existing chemicals, pesticides, and, in the near future, biocides; they are dependent on robust in vivo test data. Current strategies for ecological risk assessment were not designed to assess the risk of endocrine disrupters. The selection of suitable fish species and practical in vivo end points for determining endocrine disruption in fish are discussed, including the adaptation of some existing guidelines. This paper is partly based on a series of experiments conducted at the laboratory to look at the effects of a model alkylphenol (4-tert-pentylphenol), an industrial chemical intermediate, acting as a pseudo-estrogen on an all-male population of the common carp, Cyprinus carpio. Exposure to the test substance occurred at critical life stages for endocrine disruption. Biochemical parameters as well as histological parameters were applied, and their suitability to be used in ecological risk assessment is discussed.

Gimeno, S.; Bowmer, C.T.

1999-07-01

467

Biodegradation of plastics in soil and effects on nitrification activity. A laboratory approach.  

PubMed

The progressive application of new biodegradable plastics in agriculture calls for improved testing approaches to assure their environmental safety. Full biodegradation (?90%) prevents accumulation in soil, which is the first tier of testing. The application of specific ecotoxicity tests is the second tier of testing needed to show safety for the soil ecosystem. Soil microbial nitrification is widely used as a bioindicator for evaluating the impact of chemicals on soil but it is not applied for evaluating the impact of biodegradable plastics. In this work the International Standard test for biodegradation of plastics in soil (ISO 17556, 2012) was applied both to measure biodegradation and to prepare soil samples needed for a subsequent nitrification test based on another International Standard (ISO 14238, 2012). The plastic mulch film tested in this work showed full biodegradability and no inhibition of the nitrification potential of the soil in comparison with the controls. The laboratory approach suggested in this Technology Report enables (i) to follow the course of biodegradation, (ii) a strict control of variables and environmental conditions, (iii) the application of very high concentrations of test material (to maximize the possible effects). This testing approach could be taken into consideration in improved testing schemes aimed at defining the biodegradability of plastics in soil. PMID:25566223

Bettas Ardisson, Giulia; Tosin, Maurizio; Barbale, Marco; Degli-Innocenti, Francesco

2014-01-01

468

Human Body Explorations: Hands-On Investigations of What Makes Us Tick.  

ERIC Educational Resources Information Center

This book presents science activities on the human body with materials that can be purchased in a grocery store or pharmacy. Each activity includes an explorer and facilitator guide. Activities include: (1) "Naked Egg"; (2) "Cellular Soap Opera"; (3) "Acid in Your Stomach"; (4) "How Much Do You C?"; (5) "How Sweet It Is"; (6) "Milk Makes Me…

Kalumuck, Karen E.

469

Anti-ulcerogenic and in vitro antioxidant activities of Lagenaria breviflora (LB) whole fruit ethanolic extract in laboratory animals  

PubMed Central

Background: The present study was undertaken to evaluate the anti-ulcer and antioxidant activities of the ethanol extract of Lagenaria breviflora (EELB) whole fruit in laboratory rats. Methods: The anti-ulcer property of the ethanolic extract of the whole fruit of Lagenaria breviflora (LB) was assessed using the cold-restraint stress-induced (CRU) gastric ulcer, pyloric ligation-induced (PL) gastric ulcer, aspirin-induced (ASP) gastric ulcer and alcohol-induced (AL) gastric ulcer models. The scavenging activity of the LB extract was examined with 1, 1-diphenyl-2-picryl-hydrazyl (DPPH), Nitric oxide, Hydroxyl radical and Superoxide anion scavenging models. Results: EELB (50, 100, 150 and 200 mg/kg, b.w.) protected against the CRU gastric ulcer dose dependently. Similarly, 150 mg/kg b.w. of the LB extract protected against the PL gastric ulcer, ASP gastric ulcer and AL gastric ulcer and was comparable to omeprazole (10 mg/kg b.w.) or Suscralfate (500 mg/kg b.w.), respectively. The in vitro antioxidant activity of LB was demonstrated by its ability to quench free radicals generated by nitric oxide and superoxide anion with a concomitant scavenging potential against DPPH-induced radical formation. Conclusion: Taken together, the study showed that the whole fruit extract possess potent anti-ulcer and antioxidant activities. PMID:21731388

Onasanwo, S. A.; Singh, Neetu; Saba, A. B.; Oyagbemi, A. A.; Oridupa, O. A.; Palit, Gautam

2011-01-01

470

Favorite Demonstration: An Evaluation of the Efficacy of a Laboratory Exercise on Cellular Respiration  

NSDL National Science Digital Library

This study is an analysis of the effectiveness of a faculty-designed laboratory experience about a difficult topic, cellular respiration. The activity involves a hands-on model of the cellular-respiration process, making use of wooden ball-and-stick chemistry models and small toy trucks on a table top model of the mitochondrion. Students physically construct, break apart, and move around the glucose and ATP molecules, and transport the electron "sticks" using small trucks. They work through the actions of cellular respiration at their own pace, in the process experiencing opportunities for kinesthetic and group learning.

Scholer, Anne-Marie; Hatton, Mary

2008-09-01

471

Stanford Synchrotron Radiation Laboratory 1991 activity report. Facility developments January 1991--March 1992  

SciTech Connect

SSRL is a national facility supported primarily by the Department of Energy for the utilization of synchrotron radiation for basic and applied research in the natural sciences and engineering. It is a user-oriented facility which welcomes proposals for experiments from all researchers. The synchrotron radiation is produced by the 3.5 GeV storage ring, SPEAR, located at the Stanford Linear Accelerator Center (SLAC). SPEAR is a fully dedicated synchrotron radiation facility which operates for user experiments 7 to 9 months per year. SSRL currently has 24 experimental stations on the SPEAR storage ring. There are 145 active proposals for experimental work from 81 institutions involving approximately 500 scientists. There is normally no charge for use of beam time by experimenters. This report summarizes the activity at SSRL for the period January 1, 1991 to December 31, 1991 for research. Facility development through March 1992 is included.

Cantwell, K.; St. Pierre, M. [eds.

1992-12-31

472

A blended approach to active learning in a physiology laboratory-based subject facilitated by an e-learning component  

NSDL National Science Digital Library

Learning via online activities (e-learning) was introduced to facilitate existing face-to-face teaching to encourage more effective student preparation and then informed participation in an undergraduate physiology laboratory-based course. Active learning was encouraged by hypothesis formation and predictions prior to classes, with opportunities for students to amend their e-learning submissions after classes. Automatic or tutor feedback was provided on student submissions. Evaluation of the course was conducted via student questionnaires, individual student interviews, and analysis of student marks in examinations and of the e-learning component. Student feedback on this entire subject in the university-wide quality of teaching survey was very high by University of Melbourne standards and most encouraging for the first implementation of such a curriculum modification. Results from further detailed surveys of student interactions and engagement and correlation analysis between student responses were also very supportive of the effectiveness of the course. There were no significant differences between examination marks in the new course with e-learning and the previous year without e-learning. However, there was a significant correlation between assessment of student e-learning work and their final examination mark. Correlation analysis between various survey responses helped interpret results and strengthened arguments for e-learning and suggested future improvements for student use of e-learning. This mode of e-learning used to support face-to-face learning activities in the laboratory can be adapted for other disciplines and may assist students in developing a greater appreciation and a deeper approach for learning from their practical class experiences.

Arianne M Dantas (The University of Melbourne Physiology); Dr. Robert E. Kemm (University of Melbourne Department of Physiology)

2007-10-24

473

Neural activation during anticipated peer evaluation and laboratory meal intake in overweight girls with and without loss of control eating.  

PubMed

The interpersonal model of loss of control (LOC) eating proposes that socially distressing situations lead to anxious states that trigger excessive food consumption. Self-reports support these links, but the neurobiological underpinnings of these relationships remain unclear. We therefore examined brain regions associated with anxiety in relation to LOC eating and energy intake in the laboratory. Twenty-two overweight and obese (BMIz: 1.9±0.4) adolescent (15.8±1.6y) girls with LOC eating (LOC+, n=10) and without LOC eating (LOC-, n=12) underwent functional magnetic resonance imaging (fMRI) during a simulated peer interaction chatroom paradigm. Immediately after the fMRI scan, girls consumed lunch ad libitum from a 10,934-kcal laboratory buffet meal with the instruction to "let yourself go and eat as much as you want." Pre-specified hypotheses regarding activation of five regions of interest were tested. Analysis of fMRI data revealed a significant group by peer feedback interaction in the ventromedial prefrontal cortex (vmPFC), such that LOC+ had less activity following peer rejection (vs. acceptance), while LOC- had increased activity (p<.005). Moreover, functional coupling between vmPFC and striatum for peer rejection (vs. acceptance) interacted with LOC status: coupling was positive for LOC+, but negative in LOC- (p<.005). Activity of fusiform face area (FFA) during negative peer feedback from high-value peers also interacted with LOC status (p<.005). A positive association between FFA activation and intake during the meal was observed among only those with LOC eating. In conclusion, overweight and obese girls with LOC eating may be distinguished by a failure to engage regions of prefrontal cortex implicated in emotion regulation in response to social distress. The relationship between FFA activation and food intake supports the notion that heightened sensitivity to incoming interpersonal cues and perturbations in socio-emotional neural circuits may lead to overeating in order to cope with negative affect elicited by social discomfort in susceptible youth. PMID:25550068

Jarcho, Johanna M; Tanofsky-Kraff, Marian; Nelson, Eric E; Engel, Scott G; Vannucci, Anna; Field, Sara E; Romer, Adrienne L; Hannallah, Louise; Brady, Sheila M; Demidowich, Andrew P; Shomaker, Lauren B; Courville, Amber B; Pine, Daniel S; Yanovski, Jack A

2015-03-01

474

Droplet activation, separation, and compositional analysis: laboratory studies and atmospheric measurements  

NASA Astrophysics Data System (ADS)

Droplets produced in a cloud condensation nuclei chamber (CCNC) as a function of supersaturation have been separated from unactivated aerosol particles using counterflow virtual impaction. Residual material after droplets were evaporated was chemically analyzed with an Aerodyne Aerosol Mass Spectrometer (AMS) and the Particle Analysis by Laser Mass Spectrometry (PALMS) instrument. Experiments were initially conducted to verify activation conditions for monodisperse ammonium sulfate particles and to determine the resulting droplet size distribution as a function of supersaturation. Based on the observed droplet size, the counterflow virtual impactor cut-size was set to differentiate droplets from unactivated interstitial particles. Validation experiments were then performed to verify that only droplets with sufficient size passed through the counterflow virtual impactor for subsequent analysis. A two-component external mixture of monodisperse particles was also exposed to a supersaturation which would activate one of the types (hygroscopic salts) but not the other (polystyrene latex spheres or adipic acid). The mass spectrum observed after separation indicated only the former, validating separation of droplets from unactivated particles. Results from ambient measurements using this technique and AMS analysis were inconclusive, showing little chemical differentiation between ambient aerosol and activated droplet residuals, largely due to low signal levels. When employing as single particle mass spectrometer for compositional analysis, however, we observed enhancement of sulfate in droplet residuals.

Hiranuma, N.; Kohn, M.; Pekour, M. S.; Nelson, D. A.; Shilling, J. E.; Cziczo, D. J.

2011-10-01

475

Calculus as a Laboratory Course  

NSDL National Science Digital Library

This site from Duke University features a curriculum development project, which has produced materials for a three-semester reformed calculus course that emphasizes real-world problems, hands-on activities, discovery learning, writing and revision of writing, teamwork, intelligent use of available tools, and high expectations of students. The site provides a materials list, goals, integrated labs and an instructor's guide.

Mathematics, Department O.; University, Duke

476

Critical Issue: Providing Hands-On, Minds-On, and Authentic Learning Experiences in Mathematics  

NSDL National Science Digital Library

Cathy Cook of the North Central Regional Educational Laboratory writes: âÂÂWhen educators begin to see learning as knowledge construction, they change their thinking about curriculum, instruction, and assessment, developing more powerful approaches to connecting thinking and mathematics and designing more mathematically significant instructional learning experiences.â To summarize, she believes a revolution in teaching is necessary in order to keep topics current, students interested, and pedagogy cutting edge. In this article, Cook and the North Central Regional Educational Laboratory present an assessment of mathematics instruction in America today, followed by a series of recommendations for improving and innovating those methods we currently employ. This article would be especially helpful for inexperienced instructors, or those who find a new generation of students are not responding to methods that were effective only a few years ago.

Cook, Cathy

2008-09-10