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1

Particle Probe Investigations on the Helicon Plasma Experiment (HPX)  

NASA Astrophysics Data System (ADS)

A small Helicon Plasma Experiment (HPX) has been constructed at the Coast Guard Academy Plasma Lab (CGAPL) to utilize the reputed high densities at low pressure (.01 T) [1], in high temperature and density diagnostic development for future laboratory investigations. With the initial construction phase complete, HPX has produced its first plasmas. Efforts to develop and enhance the high temperature and density (10^13 cm-3 and higher) helicon plasmas at low pressures (.01 T) reported by Toki, Shinohara, et. al. continue. Currently, particle probes to measure plasmas' temperatures and densities, necessary to discern the plasma mode transitions, are in development. Construction of independent mach and triple probes for single point surface investigations are underway and once installed, they will be followed by a triple probe array to produce a more comprehensive density and surface view. Progress on the construction and findings of these probes on HPX will be reported.

Sherman, Justin; James, R. W.; Lopez, M.; Nolan, S.; Page, E. L.; Schlank, C.; Stutzman, B. S.; Zuniga, J.

2012-10-01

2

Pre-Stage Magnetic Coil to Enhance Helicon Mode Excitation on a Small Helicon Plasma Experiment (HPX)  

NASA Astrophysics Data System (ADS)

Small helicon plasmas have been employed in various capacities from industry to spacecraft propulsion. At the Coast Guard Academy Plasma Lab (CGAPL), a small Helicon Plasma Experiment (HPX) is being developed to utilize the reputed high density (10^13 cm-3 and higher) at low pressure (.01 T) [1] Helicon Mode Plasmas. HPX will become a high temperature and density diagnostic development test-bed for future laboratory investigations in addition to becoming a tool for future spacecraft propulsion devices. HPX Plasmas are created by imparting directed energy into a Pyrex tube preloaded with Ar gas with fill pressures on the order of 10^4 mTorr utalizing a power supply and matching box can deliver up 250 W of power in a 20 MHz to 100 MHz frequency range. It has been demonstrated [1] that a uniform magnetic field in lower energy level plasmas can facilitate a decrease in inertial effects, which promotes energy conservation within the plasma and provids the necessary external energy in the plasma's magnetic field to reach the Helicon Mode. HPX employes an electromagnet to establish this uniform field. An acceleration coil, currently under construction, will be used to increase the plasma velocity to facilitate partcle and optical probing within the vacuum chamber for experimental analysis. Initial accuracy and calibration measurements of the relative magnetic fields created by both electromagnets will be reported.[0pt][1] K. Toki, et al., Thin Solid Films 506-507 (2005).

Schlank, Carter; James, Royce; Thayer, Nicholas; Sherman, Justin; Nolan, Stephen; Lopez, Michael

2012-10-01

3

Long conduction time plasma opening switch experiments at Sandia National Labs  

NASA Astrophysics Data System (ADS)

Sandia National Labs has undertaken an ambitious program to reduce the size and cost of large pulsed power drivers. The program basis is inductive energy storage and Plasma Opening Switches (POS). Inductive energy storage has well known advantages, including increased efficiency and reduced stress on the vacuum interface. The Sandia approach is to retain the reliable and efficient Marx generator and the temporal pulse compression of the water dielectric capacitor. A triggered closing switch, developed at Sandia, transfers the capacitor charge into the energy storage inductor. This approach has several advantages, including relaxed requirements on Marx jitter and inductance, and must faster current risetime in the energy storage inductor. The POS itself is the key to the Sandia program. The switch design uses an auxiliary magnetic field to inject the plasma and hold it in place during conduction. After opening begins, the self magnetic field of the power pulse pushes on the plasma to increase the opened gap. We use magnetic pressure because we desire POS gaps of several cm. Erosion POS devices typically open much less than that. Improved opening allows more efficient energy transfer to loads.

Savage, M. E.; Simpson, W. W.; Cooper, G. W.; Usher, M. A.

1992-01-01

4

Automation of a remote plasma-enhanced chemical vapor deposition system using LabVIEW  

NASA Astrophysics Data System (ADS)

The remote plasma-enhanced chemical vapor deposition (RPCVD) system is an experimental low temperature Si/Si-Ge epitaxy system. This paper describes an integrated hardware/software automation package developed for the RPCVD system. Aspects of the system controlled by the package include pneumatic gas valves, mass flow controllers (MFCs), and a temperature controller. The package was developed on an Apple Quadra 950 platform using LabVIEWTM 3.1 and associated data acquisition and control hardware supplied by National Instruments and other vendors. The software interface allows the user to operate the system through a virtual control panel which displays critical system parameters such as chamber pressure, chamber temperature and gas flow rates, along with the states of the gas valves and the MFCs. The system can also be run in the recipe mode, in which a sequence of steps are read in from an ExcelTM file. A simulation routine scans each recipe for possible errors such as violation of valve interlocks while the recipe is being loaded. All actions, whether in the manual mode or the recipe mode, are recorded in a log file. Finally, since many of the gases used in the RPCVD process are toxic and/or flammable, there is an emphasis on safety in the entire control scheme. A safety monitor routine constantly checks for valve interlocks and pressure-valve interlocks. Upon detecting an illegal state, it automatically takes necessary action to bring the system into a safe state. In addition to these software safety features, there are also hardware interlocks to deal with such situations as power outages.

Sharma, Rajan; Fretwell, John L.; Vaihinger, Jochen; Banerjee, Sanjay K.

1997-08-01

5

Lab-on-CD microfluidic platform for rapid separation and mixing of plasma from whole blood.  

PubMed

Traditional clinical methods for separating whole blood into blood cells and cell-free plasma are labor intensive and time consuming. Accordingly, the present study proposes a simple compact disk (CD) microfluidic platform for the rapid separation of plasma from whole human blood and the subsequent mixing of the plasma with a suitable reagent. The performance of three CD microfluidic platforms incorporating square-wave mixing channels with different widths is evaluated both numerically and experimentally. The results show that given an appropriate specification of the microchannel geometry and a CD rotation speed of 2000 rpm, a separation efficiency of 95 % can be achieved within 5?~?6 s given a diluted blood sample with a hematocrit concentration of 6 %. Moreover, a mixing efficiency of more than 96 % can be obtained within 5 s given a CD rotation speed of 2200 rpm. The practical feasibility of the proposed device is demonstrated by performing a prothrombin time (PT) test. It is shown that while the time required to perform the PT test using a conventional bench top system is around 15 min, the proposed CD microfluidic platform allows the test to be completed within 1 min. PMID:24647859

Kuo, Ju-Nan; Li, Bo-Shiun

2014-08-01

6

The BErkeley Lab Laser Accelerator (BELLA): A 10 GeV Laser Plasma Accelerator  

SciTech Connect

An overview is presented of the design of a 10 GeV laser plasma accelerator (LPA) that will be driven by a PW-class laser system and of the BELLA Project, which has as its primary goal to build and install the required Ti:sapphire laser system for the acceleration experiments. The basic design of the 10 GeV stage aims at operation in the quasi-linear regime, where the laser excited wakes are largely sinusoidal and offer the possibility of accelerating both electrons and positrons. Simulations show that a 10 GeV electron beam can be generated in a meter scale plasma channel guided LPA operating at a density of about 1017 cm-3 and powered by laser pulses containing 30-40 J of energy in a 50- 200 fs duration pulse, focused to a spotsize of 50-100 micron. The lay-out of the facility and laser system will be presented as well as the progress on building the facility.

Leemans, W.P.; Duarte, R.; Esarey, E.; Fournier, S.; Geddes, C.G.R.; Lockhart, D.; Schroeder, C.B.; Toth, C.; Vay, J.-L.; Zimmermann, S.

2010-06-01

7

One-dimensional electromagnetic relativistic PIC-hydrodynamic hybrid simulation code H-VLPL (hybrid virtual laser plasma lab)  

Microsoft Academic Search

In this paper we present a new one dimensional full electromagnetic relativistic hybrid plasma model. The full kinetic particle-in cell (PIC) and hydrodynamic model have been combined in the single hybrid plasma code H-VLPL (hybrid virtual laser plasma laboratory). The semi-implicit algorithm allows to simulate plasmas of arbitrary densities via automatic reduction of the highest plasma frequencies down to the

Jalo Liljo; Anupam Karmakar; A. Pukhov; M. Hochbruck

2008-01-01

8

Rocket Lab  

NSDL National Science Digital Library

This activity is lab based competition. The students engineer a 2-litter rocket to have the maximum hang time. After the initial launch, the students are given an opportunity to re-engineer to produce a better time. The activity finishes with a lab write-up.

9

USMES Design Lab Manual.  

ERIC Educational Resources Information Center

The Design Lab Manual provides a detailed description of various types of Design Labs used in the USMES program. Chapters cover the USMES Design Lab concept; tone of Design Lab activities; in-class Design Lab; portable Design Lab; the Design Lab room; cost/scrounging; staffing and scheduling a Design Lab; Design Lab training for teachers; Design…

Education Development Center, Inc., Newton, MA.

10

Computer Lab  

USGS Multimedia Gallery

USGS geologists Peter Triezenberg and William Danforth sit with WHOI/LDEO Computer Technician Tom Bolmer in the Healy computer lab. This was during a scientific expedition to map the Arctic seafloor....

2009-01-28

11

Large scale dynamics of laboratory and astrophysical plasmas: bridging the lab/astro scale gaps and its limitations  

NASA Astrophysics Data System (ADS)

Large scale dynamics in a high temperature plasma tend to produce strong, large scale magnetic fields in the laboratory and astrophysical settings. It underlies two types of theory. The first is the conventional magnetic dynamo, which explains how plasma energy can be transformed into large scale magnetic energy. The second is the so-called magnetic self-organization, which explains how magnetic helicity introduced at a small scale source can be self-organized into system-scale magnetic fields. Examples of the first kind include the self-generated magnetic field in an inertially confined (ICF) plasma and the magnetic field in the accretion disk of stellar objects. The second kind includes the dramatic example of the megaparsec-scale radio lobe magnetic fields which are powered by the parsec-scale accretion disk of supermassive black holes, and the laboratory formation of spheromak and reversed field pinch by electrostatic helicity injection. Despite the huge scale separation between laboratory and astrophysical cases, the underlying physics appear to be surprisingly robust. Here I will first describe the theory of magnetic self-organization, and illustrate how a radio lobe can be formed and how it relates to the spheromak experiment. Specifically, the required extremely high efficiency in transferring gravitational infall energy into large scale radio lobe magnetic fields will be understood as the result of a resonant coupling between accretion disk and radio lobe plasmas, similar to a driven oscillator. The second part of the talk concerns a new form of kinetic magnetic dynamo, which is the result of anisotropic transport when hot plasmas meet a colder boundary. I will describe the underlying physical mechanisms and its laboratory and astrophysical implications. Since kinetic transport physics plays a decisive role in determining large scale dynamics, we are confounded with the interesting and difficult question of how to most effectively incorporate such physics in macro-modeling, especially in the case of nearly collisionless astrophysical plasmas. )

Tang, Xianzhu

2010-02-01

12

Virtual Labs  

NSDL National Science Digital Library

These virtual labs from the Howard Hughes Medical Institute allow students to experience laboratory procedures as if they were a professional scientist. Students can isolate and analyze bacterial DNA sequences, examine cardiac patients, dissect a leech, or diagnose diseases by detecting the presence of antibodies. These virtual labs include animated steps that must be performed, along with textual instructions and explanations so that students understand not only what they are doing, but also why they are doing it. This is an extensive Web site that offers a lot to learn, and a chance to have fun in the process.

1969-12-31

13

Echolocation Lab  

NSDL National Science Digital Library

In this lab students experience how dolphins and other echolocating animals use their senses to locate and identify objects with out using their sense of sight. A blindfold removes students sight and a stream of water replaces the sound waves. Students observe the effect of changing distance on echolocation.

BEGIN:VCARD VERSION:2.1 FN:Donald Mills N:Mills;Donald ORG:Cumberland Regional High School REV:2005-04-09 END:VCARD

1995-06-30

14

Labs: 1987.  

ERIC Educational Resources Information Center

This article presents a variety of topics discussed in this column and at a biology teachers' workshop concerning the quality and value of lab techniques used for teaching high school biology. Topics included are Drosophila salivary glands, sea urchins, innovations, dyes and networking. (CW)

Igelsrud, Don, Ed.

1988-01-01

15

Biodiesel Lab  

NSDL National Science Digital Library

The Advanced Technology Environmental and Energy Center (ATEEC) provides this biodiesel production lab overview. The materials include a general introduction to biodiesel fuels, as well as explanations of free fatty acid & acid value titration, "homebrew" oil titration and residual catalyst & soap titration.Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

Mcmahan, Andrew

2011-05-10

16

Bead injection extraction chromatography using high-capacity lab-on-valve as a front end to inductively coupled plasma mass spectrometry for urine radiobioassay.  

PubMed

A novel bead injection (BI) extraction chromatographic microflow system exploiting a high-capacity lab-on-valve (LOV) platform coupled with inductively coupled plasma mass spectrometric detection is developed for rapid and automated determination of plutonium in human urine. A column attached to the LOV processing unit is loaded online with a metered amount of disposable extraction chromatographic resin (up to 330 mg of TEVA (abbreviation for tetravalent actinides)) through programmable beads transport. Selective capture and purification of plutonium onto the resin beads is then performed by pressure driven flow after preliminary sample pretreatment. The analytical results demonstrate the large capacity of bead surfaces for uptake of Pu within the tailor-made LOV platform that fosters processing of large-sized biological samples, e.g., 1 L of human urine, along with good reproducibility for automatic column renewal (0.319 ± 0.004 g, n = 5). The chemical yields of plutonium were averagely better than 90% under the optimal experimental conditions, and the entire analytical procedure could be accomplished within a short time frame (<3 h) as compared to manual counterparts (1-2 days). Therefore, the developed system is well suited for expedient analysis of low-level plutonium in urine of exposed individuals as required in emergency situations. PMID:23339705

Qiao, Jixin; Hou, Xiaolin; Roos, Per; Miró, Manuel

2013-03-01

17

The Lab  

NSDL National Science Digital Library

The Lab is the Australian Broadcasting Corporation's online gateway to science information. Visitors will find a daily science news service (with articles from Australia and around the world), special learning features such as the interesting exploring dinosaurs and fossils link, Karl's great moments in science section, various science games for kids of all ages, and more. As a layperson-friendly informational resource on science, this site is a great place to visit time to time to get up to date science news and information presented in a fun and non-technical format.

2003-01-01

18

Hands-On Labs  

Microsoft Academic Search

This chapter includes eight labs using the Silicon Labs Microcontroller Development Kit (C8051F005): Lab 1: Getting Started\\u000a with the 8051 (reading and writing ports). Lab 2: Intro to the 7-segment LED (direct driven and decoded). Lab 3: Intro to\\u000a A\\/D conversion using a light sensor (start using ISRs). Lab 4: Intro to the keypad. Lab 5: Intro to D\\/A conversion

Kai Qian; David Haring; Li Cao

19

Decisions Shape a Lab (Lab Notes).  

ERIC Educational Resources Information Center

Offers questions to guide both initial and ongoing development of a computer writing lab. Discusses ways mobile workstations (consisting of a computer, printer, overhead, and a LCD projection unit) will extend the writing lab. (SR)

Porter, Bernajean

1992-01-01

20

Using Field Labs  

NSDL National Science Digital Library

Written by Mary Savina of Carleton College Students love field labs! They enjoy being outside and they appreciate the fact that geoscience field labs are unusually tactile and bring them into contact with real, ...

Savina, Mary

21

Nanotechnology Research Labs  

NSDL National Science Digital Library

This web site has a list of links to various nano research labs. The first section of links includes academic, government and corporate labs, which do research but do not make their facilities available to outside researchers. The second set of links includes labs that accept outside researchers, such as the National Institute of Standards.

2013-07-12

22

Supporting Lab Report Writing in an Introductory Materials Engineering Lab  

Microsoft Academic Search

This paper will describe the development and implementation of a web-based support site for helping students write and reflect on lab reports in an undergraduate Materials Science lab. This project, part of a larger NSF project to support undergraduate lab report writing, details the specific challenges of implementing lab report writing support materials for engineering labs. The lab report writing

Eric N. Wiebe; Thomas M. Hare; Michael Carter; Yusef Fahmy; Roger Russell; Miriam Ferzli

2001-01-01

23

Bringing part of the lab to the field: On-site chromium speciation in seawater by electrodeposition of Cr(III)/Cr(VI) on portable coiled-filament assemblies and measurement in the lab by electrothermal, near-torch vaporization sample introduction and inductively coupled plasma-atomic emission spectrometry  

NASA Astrophysics Data System (ADS)

A field-deployable electrochemical approach to preconcentration, matrix clean up and selective electrodeposition of Cr(III) and Cr(III) + Cr(VI) in seawater is described. Using portable, battery-operated electrochemical instrumentation, Cr species in seawater were electrodeposited in the field on portable coiled-filament assemblies made from Re. Assemblies with dried residues of Cr(III) or Cr(III) + Cr(VI) on them were transported to the lab for concentration determination by electrothermal, near-torch vaporization (NTV) sample introduction and inductively coupled plasma-atomic emission spectrometry (ICP-AES). Electrodeposition offers selective species deposition, preconcentration and matrix clean up from seawater samples. For selective deposition, free Cr(VI) was electrodeposited at - 0.3 V and Cr(III) + Cr(VI) at - 1.6 V (both vs Ag/AgCl). Interestingly, at 0 V (vs Ag/AgCl) and in the absence of an electrodeposition potential only Cr(VI) was spontaneously and selectively adsorbed on the coil and reasons for this are given. Due to preconcentration afforded by electrodeposition, the detection limits obtained after a 60 s electrodeposition at the voltages stated above using buffered (pH = 4.7) artificial seawater spiked with either Cr(III) or Cr(VI) were 20 pg/mL for Cr(III) and 10 pg/mL for Cr(VI). For comparison, the detection limit for Cr obtained by pipetting directly on the coil 5 ?L of diluted standard solution was 500 pg/mL, thus it was concluded that electrodeposition offered 40 to 60 fold improvements. Matrix clean up is required due to the high salt content of seawater and this was addressed by simply rinsing the coil with 18.2 M? water without any loss of Cr species. Reasons for this are provided. The method was validated in the lab using buffered artificial seawater and it was used in the field for the first time by sampling seawater, buffering it and immediately electrodepositing Cr species on portable assemblies on-site. Electrodeposition in the field addressed species transformation during sample pre-treatment. Such transformations occur due to sample acidification and may take place during transport and possibly storage prior to analysis. Thus, electrodeposition in the field is more reflective of Cr species concentration at the environmental conditions (e.g., temperature) at the time of sampling. It also opens up the possibility for shipping to the lab portable assemblies with Cr species on them rather than shipping large volumes of sample to the lab, thus also reducing shipping, handling and storage costs.

Badiei, Hamid R.; McEnaney, Jennifer; Karanassios, Vassili

2012-12-01

24

caNanoLab  

Cancer.gov

Welcome to the cancer Nanotechnology Laboratory (caNanoLab) portal. caNanoLab is a data sharing portal designed to facilitate information sharing in the biomedical nanotechnology research community to expedite and validate the use of nanotechnology in biomedicine. caNanoLab provides support for the annotation of nanomaterials with characterizations resulting from physico-chemical and in vitro assays and the sharing of these characterizations and associated nanotechnology protocols in a secure fashion.

25

Stanford Humanities Lab  

NSDL National Science Digital Library

Started in 2000, the Stanford Humanities Lab (SHL) discovers "fascinating futures to be explored in ignoring and crossing disciplinary borders." The Lab engages in a number of research projects that are collaborative, co-creative, and team-based. These projects have resulted in new media projects, interactive archives, predictive models of social changes, and exhibitions. Users can browse the lab's groups and their work on this site.

26

Computer Lab Configuration.  

ERIC Educational Resources Information Center

Describes the layout and elements of an effective school computer lab. Includes configuration, storage spaces, cabling and electrical requirements, lighting, furniture, and computer hardware and peripherals. (PKP)

Wodarz, Nan

2003-01-01

27

Reifenberger Nanophysics Lab  

NSDL National Science Digital Library

The Reifenberger Nanophysics Lab "uses innovative experimental techniques to examine the physical properties of objects in the nanoscale size range." This website describes the problems the lab is currently investigating including molecular conduction, environmental noise characterization, and new techniques using scanning probe microscopes (SPMs). Users can view an assorted collection of scanning probe images and schematic diagrams of the lab's equipment. Students and researchers can find a video discussing the research applications, lists of the lab's publications since 1992, and numerous links to online journals.

28

A Museum Learning Lab  

ERIC Educational Resources Information Center

The "Learning Lab: The Cell" exhibit was developed by the Massachusetts Institute of Technology (MIT) Museum and the MIT Center for Environmental Health Sciences (CEHS). Specially designed for middle and high school students, the Learning Lab provides museum visitors of all ages with fascinating insights into how our living cells work. The…

Vandiver, Kathleen M.; Bijur, Jon Markowitz; Epstein, Ari W.; Rosenthal, Beryl; Stidsen, Don

2008-01-01

29

Metamorphic Rocks Lab  

NSDL National Science Digital Library

Students each obtain 2 rock samples from a collection of 20 for the lab. Students complete a data form for observations concerning metamorphic features. Each student identifies the 2 samples and describes the metamorphic parent rock. When everyone in the lab has finished, the group matches all the non-metamorphic samples to the metamorphic samples in a large rock cycle puzzle.

Hadley, Ann C.

30

Physics Labs with Flavor  

ERIC Educational Resources Information Center

This paper describes my attempts to look deeper into the so-called "shoot for your grade" labs, started in the '90s, when I began applying my teaching experience in Russia to introductory physics labs at the College of Charleston and other higher education institutions in South Carolina. The term "shoot for your grade" became popular among…

Agrest, Mikhail M.

2009-01-01

31

Lab Report Blues  

ERIC Educational Resources Information Center

For middle school students, writing a formal lab report can be challenging. For middle level teachers, reading students lab reports can be overwhelming. After grading report after report with incomplete procedures, incorrect graphs, and missing conclusions, the author's frustration level was at an all-time high. Ready to try anything, he thought,…

Diaz, Andrew

2004-01-01

32

Reforming Cookbook Labs  

ERIC Educational Resources Information Center

Deconstructing cookbook labs to require the students to be more thoughtful could break down perceived teacher barriers to inquiry learning. Simple steps that remove or disrupt the direct transfer of step-by-step procedures in cookbook labs make students think more critically about their process. Through trials in the author's middle school…

Peters, Erin

2005-01-01

33

SenseLab  

PubMed Central

This article presents the latest developments in neuroscience information dissemination through the SenseLab suite of databases: NeuronDB, CellPropDB, ORDB, OdorDB, OdorMapDB, ModelDB and BrainPharm. These databases include information related to: (i) neuronal membrane properties and neuronal models, and (ii) genetics, genomics, proteomics and imaging studies of the olfactory system. We describe here: the new features for each database, the evolution of SenseLab’s unifying database architecture and instances of SenseLab database interoperation with other neuroscience online resources.

Crasto, Chiquito J.; Marenco, Luis N.; Liu, Nian; Morse, Thomas M.; Cheung, Kei-Hoi; Lai, Peter C.; Bahl, Gautam; Masiar, Peter; Lam, Hugo Y.K.; Lim, Ernest; Chen, Huajin; Nadkarni, Prakash; Migliore, Michele; Miller, Perry L.; Shepherd, Gordon M.

2009-01-01

34

Jefferson Lab Virtual Tour  

ScienceCinema

Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

None

2014-05-22

35

Sand Analysis Lab Activity  

NSDL National Science Digital Library

An inclass introductory level activity for science and nonscience majors that explores the properties of sand in order to identify depositional environments. Sand Analysis Lab (Microsoft Word 71kB May18 12)

Weiss, Tarin

36

TOPS Amylase Lab  

NSDL National Science Digital Library

In this advanced high school lab, students gain a greater understanding of the activity of enzymes, which are of fundamental importance to many of the chemical reactions that take place in living organisms.

Chris L. Craney (Occidental College;)

2010-06-18

37

TOPS Fish Protein Lab  

NSDL National Science Digital Library

This lab helps high school students compare the proteins in various fish products using SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis), a versatile technique widely used to separate proteins solely by their size.

Chris L.Craney (Program Director) Occidental College faculty and high school teachers in the TOPS program (Occidental College;)

2010-06-18

38

NI LabVIEW  

NSDL National Science Digital Library

LabVIEW is a graphical programming environment used to develop measurement, test, and control systems using graphical icons and wires. The program is used for a wide range of applications in industry and the laboratory.

2003-10-10

39

The Mixtures Lab  

NSDL National Science Digital Library

The representation illustrates the separation of mixtures using physical properties. The interactive simulation allows "lab attendants" to separate mixtures using virtual tools. Separation mechanisms are chosen based upon substances' physical properties, and findings are recorded in a chart.

40

LABS Foundational Technology  

SciTech Connect

They are the inventors of our generation dedicated to exceptional science, advancing the technologies of tomorrow. CO-LABS honors the outstanding achievements of researchers and their impact on the world.

None

2012-01-01

41

Science Nation: Fab Labs  

NSDL National Science Digital Library

In the Center for Bits and Atoms at the Massachusetts Institute of Technology (MIT) in Cambridge, Mass., you'll find a small tool shop but this is no ordinary tool shop! The tools make up a fabrication lab, or "fab lab" for short. In general, operating a fab lab is a matter of creating a design on computer software, and then having the computer tell the tools in the lab what to do with materials you provide. With help from the National Science Foundation (NSF), the Center for Bits and Atoms created an outreach program in diverse locations from rural Africa and rural Norway to inner city Boston and San Diego and Chicago.

42

Jefferson Lab Virtual Tour  

SciTech Connect

Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

None

2013-07-13

43

NIGMS's Living Labs  

MedlinePLUS

... similar to ours. Worm Harmless roundworms found in soil now live in lab dishes, helping scientists discover ... NIGMS Alison Davis, Ph.D., is an NIH science writer and editor. Summer 2007 Issue: Volume 2 ...

44

DNA Extraction Virtual Lab  

NSDL National Science Digital Library

This virtual lab from the Genetic Science Learning Center at the University of Utah provides a simple overview of DNA extraction, including what it's used for, illustrations, and an activity using cheek cells and laboratory equipment to isolate DNA. The lab is followed by a classroom activity that allows students and teachers to Extract DNA from Anything Living, using household items like spinach but not little sister's big toe.

2006-01-01

45

Dauphin Island Sea Lab  

NSDL National Science Digital Library

Dauphin Island Sea Lab is Alabama's marine education and research center. Lab also provides a public aquarium that focuses solely on the native eco-systems of the Mobile Bay estuary. Site provides information on graduate programs, undergraduate opportunities, faculty, facilities, and news and events. Explore the Education and Aquarium sections for teacher resources and information on workshops, student summer camps, and academic-year programs.

46

DNA Fingerprint: Alu Lab  

NSDL National Science Digital Library

This online activity features molecular genotyping using polymerase chain reaction (PCR) to provide data to study population genetics and human evolution. In this activity, which supplements a hands-on lab at the Dolan DNA Learning Center's Harlem DNA Lab, students learn how to collect their own DNA, use PCR to amplify a region of DNA from chromosome 16, and analyze the amplified DNA with gel electrophoresis.

David Micklos (Cold Spring Harbor;)

2010-05-27

47

Lunar Phases Lab  

NSDL National Science Digital Library

The NAAP Lunar Phases Lab demonstrates how the earth-sun-moon geometry gives rise to the phases of the moon as seen from earth. A distant view of an observer looking down on earth as well as a perspective of an observer looking into the sky are used in the the simulator. This lab provides resources which include demonstration guides, in-class worksheets, technical documents and assessment pre- and post- tests.

48

An innovative high-power constant-current pulsed-arc power-supply for a high-density pulsed-arc-plasma ion-source using a LaB6-filament  

NASA Astrophysics Data System (ADS)

An innovative high-power constant-current (CC) pulsed-arc (PA) power-supply (PS) indispensable for a high-density PA plasma ion-source using a lanthanum hexaboride (LaB6) filament was devised by combining a constant-voltage (CV) PA-PS, which is composed of an insulated gate bipolar transistor (IGBT) switch, a CV direct-current (dc) PS and a 270 mF capacitor with a CC-PA-PS, which is composed of an IGBT-switch, a CC-dc-PS and a 400 ?H inductor, through the inductor. The hybrid-CC-PA-PS succeeded in producing a flat arc-pulse with a peak power of 56 kW (400 A×140 V) and a duty factor of more than 1.5% (600 ?s×25 Hz) for Japan Proton Accelerator Research Complex (J-PARC) H- ion-source stably. It also succeeded in shortening the 99% rising-time of the arc-pulse-current to about 20 ?s and tilting up or down the arc-pulse-current arbitrarily and almost linearly by changing the setting voltage of its CV-dc-PS.

Ueno, A.; Oguri, H.; Ikegami, K.; Namekawa, Y.; Ohkoshi, K.; Tokuchi, A.

2010-02-01

49

An innovative high-power constant-current pulsed-arc power-supply for a high-density pulsed-arc-plasma ion-source using a LaB6-filament.  

PubMed

An innovative high-power constant-current (CC) pulsed-arc (PA) power-supply (PS) indispensable for a high-density PA plasma ion-source using a lanthanum hexaboride (LaB(6)) filament was devised by combining a constant-voltage (CV) PA-PS, which is composed of an insulated gate bipolar transistor (IGBT) switch, a CV direct-current (dc) PS and a 270 mF capacitor with a CC-PA-PS, which is composed of an IGBT-switch, a CC-dc-PS and a 400 microH inductor, through the inductor. The hybrid-CC-PA-PS succeeded in producing a flat arc-pulse with a peak power of 56 kW (400 A x 140 V) and a duty factor of more than 1.5% (600 micros x 25 Hz) for Japan Proton Accelerator Research Complex (J-PARC) H(-) ion-source stably. It also succeeded in shortening the 99% rising-time of the arc-pulse-current to about 20 micros and tilting up or down the arc-pulse-current arbitrarily and almost linearly by changing the setting voltage of its CV-dc-PS. PMID:20192388

Ueno, A; Oguri, H; Ikegami, K; Namekawa, Y; Ohkoshi, K; Tokuchi, A

2010-02-01

50

Labs of the World, Unite  

Microsoft Academic Search

Abstract: eScience is rapidly changing the way we do ,re- search. As a result, many research labs now need non- trivial computational power. Grid and voluntary computing are well established solutions for this issue. However, not all labs can effectively benefit from these technologies. In particular, small and medium research labs (which are the majority of the labs in the

Walfredo Cirne; Francisco Vilar Brasileiro; Nazareno Andrade; Lauro B. Costa; Alisson Andrade; Reynaldo Novaes; Miranda Mowbray

2006-01-01

51

USC: The Interaction Lab  

NSDL National Science Digital Library

The Interaction Lab at the University of Southern California is part of the Center for Robotics and Embedded Systems (CRES) and the USC Robotics Labs. Its work involves "using a behavior-based approach to control, favoring solutions that are distributed, scalable, and robust" and when possible, validating algorithms in embodied domains. Areas of study include: Multi-Robot Coordination and Learning, Humanoid Robot Control and Learning, Learning by Imitation, Assistive Human-Robot Interaction, and Activity Modeling. The website provides short descriptions and research goals for each of these areas and related projects. Several publications and videos resulting from these projects are also posted online. The "fun" section offers a glimpse of the good times shared by the lab researchers.

52

Poverty Action Lab  

NSDL National Science Digital Library

Many laboratories focus their attention on topics like Alzheimer's research, but this laboratory at MIT focuses on poverty. The objective of their work at the Poverty Action Lab is "to improve the effectiveness of poverty programs by providing policy makers with clear scientific results that help shape successful polices to combat poverty." The Lab was started in June 2003 by a group of professors at MIT and their collaborators. Visitors to the site will note that the materials here are divided into sections that include "Research", "People", "News", and "Courses". The "Research" section is a great place to start as policy makers and others can look over their completed projects (such as "Discrimination in the Job Market") and their publications. Moving on, visitors can click on the "People" section to learn more about their staff and directors. Finally, those who are curious about the reach of the Poverty Lab's work will want to look at their media features in the "News" section.

53

Biology: Online Labs  

NSDL National Science Digital Library

Like many other academic publishers, McGraw Hill often creates supplementary online materials to be used in conjunction with their various publications. This particular collection of online materials is meant to be used with one of their recent biology textbooks, but they can certainly be used as stand-alone educational resources for persons interested in the biological sciences. This particular site contains 31 virtual labs that cover topics like evolution, regulatory genes, iron stress in diatoms, and gene technology. These labs are recreations of actual scientific experiments, and visitors are given background information on a topic, an explanation of the researcher's observation, and an overview of how they set up their experiment. The goal of these labs is to help make students and others more comfortable working with primary sources. Finally, the site also includes interviews with principal investigators from the University of Michigan, the University of Albert, and Auburn University.

2009-10-26

54

MEMS Accelerometer Lab Activity  

NSDL National Science Digital Library

The MEMS Accelerometer Lab Activity was developed by Ui Luu as part of NetWorks National Externship Program for faculty. The lab activity studies the force and impact data collected from a MEMS Accelerometer, same as the device used in automobiles to launch a safety airbag. Upon completion of this activity, students will be able to define: acceleration, force, mass, Newton's Second Law of Motion, and Newton's Third Law of Motion. They will also be able to run data acquisition systems and use graphing tools to perform data analysis. This is a great resource for student and educators in a physics and simply science classroom.

Luu, Ui

2010-06-15

55

Jefferson Lab: Science Education  

NSDL National Science Digital Library

Jefferson Lab carries out its long-term commitment to science education by providing a host of teacher resources, games, and science lessons. Students can find a periodic table offering physical characteristics and information on the history and uses of each element. The Student Zone contains a virtual lab tour, glossary of scientific terms, and materials on internships. Teachers can locate pdf downloads of many hands-on activities on many science subjects such as microscopes, magnets, and measuring. The website introduces educational events and educational programs for both teachers and students.

56

UC Berkeley Lab Notes  

NSDL National Science Digital Library

The University of California at Berkeley College of Engineering publishes Lab Notes, a newsletter from the Public Affairs Office. The mission is "to illuminate groundbreaking research underway today at the College of Engineering that will dramatically change our lives tomorrow." Lab Notes is available online free of charge. Articles in the November 2004 issue highlight robot technology, satellite communications, and a radio observatory project. Each short article includes images or videos and links to related articles and researchers' websites. Previous issues are saved in an online archive.

57

Greenhouse Effect Lab  

NSDL National Science Digital Library

In this simple lab, students collect data to demonstrate basic atmospheric science concepts. Groups of students measure the effect of carbon dioxide on temperature using soda bottles with thermometers inserted. One bottle is filled with air and capped. The second bottle is filled with carbon dioxide using a specific procedure. To conduct the experiment, both bottles are placed under a lamp while students record the increase in temperature over five minutes. The bottle containing carbon dioxide has a greater increase in temperature than the bottle containing air. This lab demonstrates the fundamental concept that underlies climate change science by providing data that are easy for students to interpret.

Larsen, Krista

58

Nanotechnology Lab Visit  

NSDL National Science Digital Library

Teachers' Domain presents this video as part of a series on advanced technological education. This segment shows what goes on in a nanofabrication lab, as well as the basics of the nanotechnology industry. The top-down fabrication process of photolithography is shown, as well as the protective measures required to work in a nanofabrication lab. The video may be viewed online or downloaded. To download the clip, users must create a free login for Teachers' Domain. Running time for this Quick Time video is 3:53. Educators will also find a background essay, discussion questions, and standards alignment for the material.

2010-09-30

59

RiskLab Toronto  

NSDL National Science Digital Library

One of an international network of math laboratories in the field of risk modelling. Originally intended to model financial risk, the field has grown to encompass a number of other areas. Site provides summaries of the lab's research (including some downloadable papers), news items, contact information, and links.

2007-02-22

60

Modifying Cookbook Labs.  

ERIC Educational Resources Information Center

Modifies an extended lab activity from a cookbook approach for determining the percent mass of water in copper sulfate pentahydrate crystals to one which incorporates students' prior knowledge, engenders active mental struggling with prior knowledge and new experiences, and encourages metacognition. (Contains 12 references.) (ASK)

Clark, Robert, L.; Clough, Michael P.; Berg, Craig A.

2000-01-01

61

Rainbow Challenge Lab  

NSDL National Science Digital Library

In this inquiry lab activity, the students will attempt to layer 6 different kinds of soda pops in a large test tube. The students will have to use prior knowledge of the physical properties of liquids, in particular density, to accomplish this task.

62

Spectroscopy Lab Suite  

NSDL National Science Digital Library

The Spectroscopy Lab Suite contains 10 simulations that illustrate optical emission and absorption from atoms and solids. These illustrations show bound state energy levels, electronic transitions, spectra, and illustrations of the physical systems being modeled. Instructions on using the simulations are provided with each.

Zollman, Dean

2010-08-10

63

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Search Protocols Help

64

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Basic Sample Search Advanced

65

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Search Publications Help

66

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Unexpected Exception:

67

DNA Dry Lab  

NSDL National Science Digital Library

This paper, pencil and scissors lab illustrates how the order of nucleotides in DNA determines the order of amino acids in proteins. It reinforces the concept that any change in the order of nucleotides can change the order of amino acids in proteins. Questions allow students to work through excercise at their own pace without missing key points.

BEGIN:VCARD VERSION:2.1 FN:Susan Offner N:Offner;Susan ORG:Milton High School REV:2005-04-14 END:VCARD

1995-06-30

68

STAT LABS: Data  

NSDL National Science Digital Library

These datasets come from the book "STAT LABS: Mathematical Statistics Through Applications." Below the link for each dataset are descriptions of the variables for that dataset. Datasets are in text format and address topics such as maternal smoking and infant health, video games, radon, cytomegalovirus DNA, HIV, crab molting, voting, snow gauge calibration, down syndrome, and tape drive quality.

Nolan, Deb; Speed, Terry

2009-01-20

69

Inside Linden Lab  

ERIC Educational Resources Information Center

In this article, the author provides an overview of Second Life[trademark], or simply SL, which was developed at Linden Lab, a San Francisco-based corporation. SL is an online society within a threee-dimensional virtual world entirely built and owned by its residents, where they can explore, build, socialize and participate in their own economy.…

Atkinson, Tom

2008-01-01

70

Corn Wet Milling Lab  

NSDL National Science Digital Library

Description: Wet Corn Milling is an industrial process that that converts corn to a wide variety of by-products. The wet milling industry is the largest non-feed user of corn, using approximately 1 billion bushels annually. This lab looks at the separation steps in the industrial processing of corn.

Olson, Eric; Warren, Noreen

2008-10-27

71

Electrolysis Lab 1  

NSDL National Science Digital Library

This lab exercise will introduce the process of electrolysis to your students. The class will use a Hoffman electrolysis apparatus. The procedure for the experiment is explained step by step in this lesson plan; a graphic representation of the device is also provided. Student worksheets and discussion questions are included. This document may be downloaded in PDF file format.

2012-05-03

72

Electrolysis Lab 2  

NSDL National Science Digital Library

This lab exercise will further introduce the process of electrolysis to your students. The class will use a Hoffman electrolysis apparatus. The procedure for the experiment is explained step by step in this lesson plan; a graphic representation of the device is also provided. Student worksheets and discussion questions are included. This document may be downloaded in PDF file format.

2012-05-02

73

Lab 3 - Advanced VHDL  

NSDL National Science Digital Library

This lab activity from the Digital Logic Project demonstrates many advanced VHDL techniques and how they can be used to your advantage to create efficient VHDL code. Topics include operator balancing, resource sharing, preventing unwanted latches, and state machine encoding schemes.

2012-07-10

74

Crater Counting Lab exercise  

NSDL National Science Digital Library

This lab focuses on the identification of impact features, and how they can used to estimate the age of planetary surfaces. Key comcepts include understanding how the crater process has changed over geologic time; how those changes manifest themselves in the surficial record of planetary landforms; how other planetary processes modify surficial landforms; how the conditions of the Solar System have changed over time.

Mullins, Kevin

75

caNanoLab  

Cancer.gov

QUICK LINKS NCI caNanoLab Wiki NCI CBIIT Home NCL Home NCL CSN Home NCI Nano Alliance Home NCI Home EXTERNAL  Disclaimer NBI NIOSH NIL InterNano nanoHUB ICON SAFENANO HOME PROTOCOLS SAMPLES PUBLICATIONS HELP GLOSSARY LOGIN Advanced Sample Search Basic

76

Lab 3: Land Ice  

NSDL National Science Digital Library

In the first part of this lab, students learn about land ice and the processes and timescales involved in glaciation. In Part B, they use an online interactive to explore how glaciers provide scientists with evidence for climate change. Finally, students use image processing software to measure how much area a real glacier has lost over time due to rising temperatures.

77

Labs of Unlimited Scope  

ERIC Educational Resources Information Center

Describes four experiments at the college freshman and sophomore levels which incorporate pre-lab viewing of visual aids, open-ended laboratory experiences, and use of the low-cost digital computer in both CAI and computational modes. (Author/DS)

Reid, W. M.; Arseneau, D. F.

1971-01-01

78

Fault rocks lab  

NSDL National Science Digital Library

This lab is intended to give students some hands on experience looking at fault rocks with a suite of cataclasites and mylonites I have collected. The focus is on identifying key textural features in both hand sample and thin section and understanding how deformation within a fault zone varies with depth.

Singleton, John

79

Elemental Chem Lab  

ERIC Educational Resources Information Center

This educative material uses the symbols of 45 elements to spell the names of 32 types of laboratory equipment usually found in chemical labs. This teaching material has been divided into three puzzles according to the type of the laboratory equipment: (i) glassware as reaction vessels or containers; (ii) glassware for measuring, addition or…

Franco Mariscal, Antonio Joaquin

2008-01-01

80

Algebra Lab: Inverse Variation  

NSDL National Science Digital Library

This lesson from Algebra Lab demonstrates "how to write equations of quantities which vary inversely." The lesson includes an example of a graph of this type of equation, and several example problems. This supporting material would be best used following some in-class instruction explaining how to solve inverse variation equations.

2012-01-01

81

Why national labs?  

SciTech Connect

Biologists are defined by both their field of investigation and where they work. When I was a tenured university professor in the pathology department of a medical school, my colleagues scientists seemed to understand what I did for a living. Now that I work at a national laboratory, I am more likely to be greeted with blank stares. The questions that I do get, such as whether I need to write research grants (I do) or whether I work on the energy problem (I don’t), indicates a pervasive lack of understanding of the nature of national labs and their important roles in biological research. The national labs were largely responsible for a new phase of biology. DOE started the Human Genome Project to understand the molecular basis of radiation damage. GenBank began at Los Alamos National Laboratory in the early 1980s to manage the increasing amounts of DNA sequence data. The high-intensity x-ray sources found at national labs began being used to rapidly solve protein structures. These projects required a level of technical sophistication and scale that were well beyond most universities. This, together with a lack of departmental boundaries and a tradition of multidisciplinary teamwork, made national labs an excellent environment for tackling challenging problems in biology. I believe that most academic scientists are unaware of the research that goes on at national labs, mostly due to our small size and general focus on advanced technology. Biology has traditionally been more labor intensive than technology dependent, which plays to the natural strengths of universities. However, this is likely to change in the next several years.

Wiley, H. S.

2008-06-01

82

Sea Urchin Embryology: Core Lab  

NSDL National Science Digital Library

Lab directions for 2 50 minute labs plus several days of brief observations to allow for development. Includes set up information, materials, procedure, troubleshooting, thought-provoking questions and an assessment.

PhD David Epel (Stanford U. Hopkins Marine Station)

2006-12-19

83

Nuclear Medicine at Berkeley Lab  

SciTech Connect

Thomas Budinger, head of Berkeley Lab's Center for Functional Imaging, discusses Berkeley Lab's rich history pioneering the field of nuclear medicine, from radioisotopes to medical imaging. His talk was presented July 5, 2006.

Thomas Budinger

2008-03-04

84

Nuclear Medicine at Berkeley Lab  

ScienceCinema

Thomas Budinger, head of Berkeley Lab's Center for Functional Imaging, discusses Berkeley Lab's rich history pioneering the field of nuclear medicine, from radioisotopes to medical imaging. His talk was presented July 5, 2006.

Thomas Budinger

2010-01-08

85

Nuclear Medicine at Berkeley Lab  

ScienceCinema

Thomas Budinger, head of Berkeley Lab's Center for Functional Imaging, discusses Berkeley Lab's rich history pioneering the field of nuclear medicine, from radioisotopes to medical imaging. His talk was presented July 5, 2006.

Thomas Budinger

2013-06-12

86

Science Sampler: Lab report blues  

NSDL National Science Digital Library

For middle school students, writing a formal lab report can be challenging. For middle level teachers, reading students' lab reports can be overwhelming. As a solution, why not try peer editing? By having students critique each other in a constructive, nonverbal manner, they will be able to produce better lab reports while simultaneously engaging in the process of scientific inquiry.

Diaz, Andrew

2004-10-01

87

Mississippi State Physics Labs: Graphs  

NSDL National Science Digital Library

This inquiry-based lab for introductory physics courses explores the purpose of graphs. Students measure simple circular objects and blocks, graph the data, and look for relationships in the graphs. The lab was designed to help students discover the advantage of using graphical representations to understand numerical relationships. This material is part of a larger collection of introductory physics labs.

Ferguson, Joe; Denson, Jack

2008-09-08

88

Jefferson Lab: Science Education  

NSDL National Science Digital Library

This is the homepage of the Office of Science Education of the Thomas Jefferson National Accelerator Facility (Jefferson Lab). The aim of the site is to aid Jefferson Lab's long-term commitment to science education by increasing the number of teachers with a substantial background in math and science, strengthening the motivation and preparation of all students, especially minorities and females, and addressing the serious under-representation of minorities and females in science, math, engineering and technology careers. The page offers links to teacher resources, a student zone, games and puzzles, and programs and events. The site focuses on physical science, but some sections are useful to students and teachers of the earth system sciences.

89

ChemLab  

NSDL National Science Digital Library

Dartmouth College's introductory chemistry course program has a Web site that is worth a look by students and professors of chemistry at other institutions. Visitors to the site can ignore the exam and grading sections and head straight to the Java applets. With these nine, nifty mini-tutorials, students can create a custom periodic table, play fill-in-the-blank periodic table puzzles, run virtual labs on anions and cations, construct a visible spectrum, practice least-squares regressions, and much more. Visitors to the site will also find the "Chemistry and Background" portions of the online laboratory manuals (filed under Chem 3/5 and Chem 6) useful and also should review the section on how and why to keep a chemistry lab notebook.

2007-05-03

90

RiskLab  

NSDL National Science Digital Library

Founded in 1994, RiskLab is a Swedish "inter-university research institute, concentrating on precompetitive, applied research in the general area of (integrated) risk management for finance and insurance." Featured on the site is RiskLab's tremendous body of research and writing. From clearly-marked links, users have access to working papers, speech presentations, and projects. Papers are fully cataloged and available in a variety of formats including in full text in PostScript, compressed PostScript, and .pdf, and many of the papers are accompanied by online slide presentations of the work. This site will be valuable to anyone interested in risk management as it pertains to finance and insurance.

91

Lab Safety Training Guide  

NSDL National Science Digital Library

Created by Princeton University's Environmental Health & Safety division, this extensive lab safety training guide provides basic information for working safely with laboratory chemicals and equipment. The "Introduction" to the site contains information specific to doing such work at Princeton, so visitors should direct their attention over to the left-hand side of the page. Here they will find sections that cover basic procedures regarding the use of flammable liquids, compressed gases, fume hoods, peroxides, and about a dozen other things that one might encounter in such a setting. Along with offering some lists of instructions, each area also has some helpful graphics that will help those just getting started in a lab identify key procedures and commonly-encountered pieces of equipment.

92

British Library Labs  

NSDL National Science Digital Library

Funded by the Andrew W. Mellon Foundation, the British Library Labs offer up interactive digital collections and apps based on the holdings of this remarkable library. First-time visitors can navigate to the left-hand side of the page to look over datasets, maps, images, sounds, and multimedia materials. Within Digital Collections, the Images area features the Endangered Archives Programme (EAP), which is concerned with the preservation of archival material in danger of destruction, neglect, or physical deterioration world-wide. Visitors can look through four different collections in the Music area, including Early Music Online which features over 320 volumes of 16th-century music from the British Library. Users can also look over the Digital Scholarship Blog that offers up thoughtful meditations on the Labsâ ongoing activities and projects.

93

Galvanized Sheet Metal Lab  

NSDL National Science Digital Library

This module, created by Jamie Acker of Olympic High School in Bremerton, Washington, provides a look into an entry-level lab on galvanized metal. The introduction states, "This simple lab visually shows the effects of removing zinc from a galvanized piece of sheet metal and provides students an opportunity to mathematically calculate the reduction in thickness of the zinc and number of atoms lost, based on the change in mass." The module features an abstract, objective, curriculum overview, procedures, mathematical calculations and references. Students should gain knowledge taking measurements using a micrometer/beam balance, how to safely handle strong acids and use algebra to rearrange equations to balance equations. This is a great resource to either enhance or create new curriculum for instructors.

Acker, Jamie

2009-09-30

94

The LabWrite Project: Experiences reforming lab report writing practice in undergraduate lab courses  

Microsoft Academic Search

Laboratory reports have always been a part of the modern science and engineering curricula. However, it has also often been the least liked part of a students' (and instructors') laboratory experience. Despite research demonstrating the importance of lab reports to the undergraduate science and engineering lab experience, instructors are likely to minimize their use. Lab reports have been replaced with

Eric N. Wiebe; Catherine E. Brawner; Michael Carter; Miriam G. Ferzli

2005-01-01

95

Physics Lab Online  

NSDL National Science Digital Library

This collection for high school physics integrates lessons, labs, practice problems, assessments, AP review exercises, simulations, and quizzes in one easily-searched location. Initial development began in 1997, with continual updating and expansion occurring since then. Of special note is the section Amusing Problems, consisting of real-life applications designed to make learners think andlaugh. Each problem provides access to solutions for self-evaluation. Course levels addressed in the collection include algebra-based physics, honors physics, and AP physics.

Colwell, Cathy

2011-09-01

96

Fourth Grade Lab Activities  

NSDL National Science Digital Library

These are a collection of sites related to the Fourth Grade CORE, to be explored in the computer lab. For SCIENCE explorations click below. 1. Clouds and the water cycle at the Enchanted Learning site. 2. Look at the Cloud Man&s pictures of clouds. 3. Cloud Types 4. Clouds and Precipitation: online meteorology guide 5. The Dirt on Soil 6. The Dirt on Soil 7. Soil Horizons For MATH activities click below. Math activities "A" ...

Boissonnault, Ms.

2005-06-23

97

Introducing ADS Labs  

NASA Astrophysics Data System (ADS)

ADS Labs is a platform that ADS is introducing in order to test and receive feedback from the community on new technologies and prototype services. Currently, ADS Labs features a new interface for abstract searches, faceted filtering of results, visualization of co-authorship networks, article-level recommendations, and a full-text search service. The streamlined abstract search interface provides a simple, one-box search with options for ranking results based on a paper relevancy, freshness, number of citations, and downloads. In addition, it provides advanced rankings based on collaborative filtering techniques. The faceted filtering interface allows users to narrow search results based on a particular property or set of properties ("facets"), allowing users to manage large lists and explore the relationship between them. For any set or sub-set of records, the co-authorship network can be visualized in an interactive way, offering a view of the distribution of contributors and their inter-relationships. This provides an immediate way to detect groups and collaborations involved in a particular research field. For a majority of papers in Astronomy, our new interface will provide a list of related articles of potential interest. The recommendations are based on a number of factors, including text similarity, citations, and co-readership information. The new full-text search interface allows users to find all instances of particular words or phrases in the body of the articles in our full-text archive. This includes all of the scanned literature in ADS as well as a select portion of the current astronomical literature, including ApJ, ApJS, AJ, MNRAS, PASP, A&A, and soon additional content from Springer journals. Fulltext search results include a list of the matching papers as well as a list of "snippets" of text highlighting the context in which the search terms were found. ADS Labs is available at http://adslabs.org

Accomazzi, Alberto; Henneken, E.; Grant, C. S.; Kurtz, M. J.; Di Milia, G.; Luker, J.; Thompson, D. M.; Bohlen, E.; Murray, S. S.

2011-05-01

98

Teaching Science: Lab Safety  

NSDL National Science Digital Library

Before entering the world of pipettes and Geiger counters, budding scientists will need to know about lab safety. Science educators will benefit from this laboratory safety site, developed by Professor Norman Herr, who teaches at California State University, Northridge. On his site, Professor Herr provides topically organized links that fall into the areas of safety standards, chemical hazards, chemical storage, and five other relevant topics. Within each section, visitors will find links to state safety standards, sample laboratory safety contracts, and fact sheets on chemical hazards. One potentially delightful classroom activity is the laboratory safety "scavenger hunt". Through this activity, students will learn about storage requirements, chemical risks, and other potential delicate matters.

99

Annenberg Media: Teachers' Lab  

NSDL National Science Digital Library

This small collection from Learner.org provides a unique digital lab for teachers to explore new ideas in learning. The activities are designed around four strands: patterns in mathematics, seasonal changes and moon phases, geometry, and the nature of light. Each section features interactive exercises to challenge teachers' thinking about logic, pattern recognition, shape and structure, symbolic relationships, and mathematical reasoning. The authors then delve into the learning theory behind the activities and how it can be extended to learners of different ages and abilities. Each module provides links to hands-on activities for the classroom.

2012-11-30

100

Plymouth Wave Lab  

NSDL National Science Digital Library

The Plymouth Wave Lab is a series of movies of waves on a string intended for middle school students. The reference material at the site explains the relationship between the behavior of the string in the six examples and the behavior of a tsunami. The December 26, 2004 tsunami that was generated from the M9.0 Sumatra earthquake has raised public awareness worldwide of the disastrous consequences of tsunami waves. Thus the Marine Seismology and Geoacoustics Group of the Woods Hole Oceanographic Institute offers, within the context of a middle school curriculum on waves, five lessons that can be learned from tsunamis.

101

Outcrop Documentation Lab Exercise  

NSDL National Science Digital Library

Stratigraphy students are tasked with documenting an outcrop (sketches, photographs, and rock descriptions) and providing a three panel display of the results. Students work on the lab in class and receive direct mentoring in rock and outcrop description, then for homework they craft digital professional quality reports to present the data to others. These reports are graded, then returned to everyone simultaneously so they can be placed side by side. Students directly observe how others interpreted the same deposits, which underscores the concepts of sound data documentation, and separating data from interpretations.

Evans, Thomas

102

Adapting Labs and Troubleshooting  

NSDL National Science Digital Library

A great deal of information is available on how children learn--brain research, multiple intelligence aspects, concrete versus abstract thinking, environmental stimuli, and so on--but one key feature can be gleaned from all of the studies, and that is the importance of hands-on learning. No matter what method students use to garner information, the learning process can be augmented with the inclusion of labs, activities, or simulations that mimic real-life experiences. This is especially true in the middle school science classroom.

2003-01-01

103

Lab 5: Gone Fishing  

NSDL National Science Digital Library

This lab activity introduces students to overfishing, using Georges Bank groundfish as a case study. In Part A, students learn about overfishing by examining trends in annual haddock landings and mortality in Georges Bank from 1969-2004. In Part B, they learn about what it means for a species to be overfished by examining trends in Georges Bank Atlantic cod recruitments and biomass from 1978-2004. In Part C, students explore whether or not it is possible to reverse the effects of overfishing through ecosystem and fisheries management.

104

LabVelocity  

NSDL National Science Digital Library

Geared mainly toward biotechnology researchers, this commercial site provides a wealth of laboratory information such as technique protocols, tools and tables, and a catalog of equipment and literature. The Tools and Tables section gives sizes and weights of genomes and molecules, a buffer calculator, protein affinity tables, and much more. Protocols such as in vitro transcription/translation, expression arrays, and protein assays are available for free download in .pdf format. Certain instrumentation, software, and laboratory product user manuals can be similarly downloaded. Other highlights of the site are the "lab manager," allowing users to create a personalized archive of scientific literature, protocols, product lists, and references; free access to Medline, the National Library of Medicine's searchable database; and a customizable news page. Because LabVelocity is a for-profit venture, a vast array of products are available for purchase from the site. These are subcategorized (e.g., Antibodies, Chromatography, Electrophoresis, Immunology) for easy access. Registration is requested but not required.

105

Lab at Home: Hardware Kits for a Digital Design Lab  

ERIC Educational Resources Information Center

An innovative laboratory methodology for an introductory digital design course is presented. Instead of having traditional lab experiences, where students have to come to school classrooms, a "lab at home" concept is proposed. Students perform real experiments in their own homes, using hardware kits specially developed for this purpose. They…

Oliver, J. P.; Haim, F.

2009-01-01

106

Advanced LabVIEW Labs; Physics Today (review).  

National Technical Information Service (NTIS)

There have been approximately fifteen books concerning LabVIEW, but Professor Essick's treatise takes on a completely different tack than all of the previous discussions. LabVIEW is written in 'G' a graphical programming language developed by National Ins...

E. D. Jones

1999-01-01

107

Iceland Lavas Lab  

NSDL National Science Digital Library

The purpose of this exercise is to link volcanic rock petrology (hand samples and thin sections) with volcanic rock analytical data to hypothesize on crystal fractionation/accumulation control on lava composition. This lab exercise starts with thin section and hand sample sets of Iceland lavas. To the extent possible, each set has a range of lava compositions including picrites, multiply saturated basalts, and silicic lavas. Also provided is a spreadsheet table of Iceland lava chemical compositions and phenocryst compositions. During the lab, students first identify phenocryst and other phases in their sample set, and compile a table of lava mineralogy. The students then take the spreadsheet of chemical analyses and plot them according to location: Rekjaness, Askja, and Hekla, and they also plot the phenocryst compositions (phenocryst composition changes with magma evolution are ignored. Students then use the rock-derived phenocryst information and phase diagrams (looked at elsewhere in class) to decide which lavas were probably precipitating which phenocryst phases. They then draw crystal fractionation/accumulation control lines on their graphs to illustrate hypothetical controls on magma evolution. They also look at the continuity of data to decide if silicic rocks are related to the basalts by a continuum process (like crystal fractionation, e.g., Hekla) or by a non-continuum process (like partial melting of a different source rock, e.g., Askja). This exercise has proven useful in my course to strengthen the link between rock petrology and rock suite chemical variation. Without something of this sort, I have found that most students have a hard time understanding the meaning of chemical variation diagrams of an igneous suite. This lab follows a phase diagram study of igneous rocks, particulary Fo-An-Di which is most pertinent to the Iceland lavas. It also directly follows an introduction to control lines that is based on a series of Kilauea lavas (illustrated in another submission to this archive). Note that crystal fractionation and accumulation are certainly not the only processes that control these Iceland magma compositions. This exercise is illustrative only of these processes, however.

Hollocher, Kurt

108

Forensic Chemistry Lab Manual  

NSDL National Science Digital Library

Any aspect of forensic science can be quite tricky, and educators will be delighted to learn about this helpful educational resource designed just for them. Created by Professor Robert Thompson of Oberlin College this online forensic chemistry lab manual is designed to help chemistry faculty in developing forensic chemistry project laboratories for both undergraduate and graduate courses. In this manual, visitors will find sample preparations, procedural details, instructions for students, and typical results in a variety of formats. Along the left-hand side of the homepage, visitors can look through the forensic chemistry analyses, which include explosives, fabric, glass, and arson. The site is rounded out by a selection of "Stories", which are meant to provide the background for chemical analyses of crime scene samples.

Thompson, Robert

109

Counterpane Labs: Password Safe  

NSDL National Science Digital Library

Tired of trying to memorize numerous computer passwords? Password Safe is a free Windows 9x/2000 utility that provides users the opportunity to keep their passwords securely encrypted on their computers and provides a single Safe Combination that unlocks all passwords. Password Safe "protects passwords with the Blowfish encryption algorithm, a fast, free alternative to DES." The program's security has been thoroughly verified by Counterpane Labs under the supervision of Bruce Schneier, author of Applied Cryptography and creator of the Blowfish algorithm. Password Safe features a simple, intuitive interface that lets users set up their password database in minutes. One can copy a password just by double clicking and pasting it directly into his/her application. Best of all, Password Safe is completely free: no license requirements, shareware fees, or other strings attached.

2001-01-01

110

Experiences Building PlanetLab  

Microsoft Academic Search

This paper reports our experiences building PlanetLab over the last four years. It identifies the re- quirements that shaped PlanetLab, explains the design decisions that resulted from resolving conflicts among these requirements, and reports our experience imple- menting and supporting the system. Due in large part to the nature of the \\

Larry L. Peterson; Andy C. Bavier; Marc E. Fiuczynski; Steve Muir

2006-01-01

111

Physics Labs with Flavor II  

ERIC Educational Resources Information Center

This paper was inspired by the numerous requests from "TPT" readers to expand the number of examples of "recurrent study" lab exercises described in my previous paper "Physics Labs with Flavor." I recommend that readers examine it first in order to better understand this one as my attempt here is to be brief. In that paper, one can find details…

Agrest, Mikhail M.

2011-01-01

112

The Problem with Organic Chemistry Labs  

ERIC Educational Resources Information Center

The problem with organic chemistry labs is that the educational objectives of lab instructions are often vague and seldom stated. The great majority of organic chemistry labs in American colleges and universities are based on verification experiments.

Mohrig, Jerry R.

2004-01-01

113

Duke University: The Clark Lab  

NSDL National Science Digital Library

Based at Duke University, the Clark Lab "conducts research in plant community ecology, paleoclimate and fire ecology." The lab website contains brief descriptions of various research projects on Forest Dynamics and Environmental Change, Dispersal and Tree Population Migration, Molecular Biogeography, and New Computational Approaches for Forest Dynamics, to name a few. Notably, the site contains a nice selection of downloadable articles that have appeared in such publications as _Ecology_, _Forest Ecology and Management_, _Ecological Monographs_, _Nature_, and _Canadian Journal of Forest Research_. The site also offers brief information about several lab members including email addresses.

114

Neutron Transversity at Jefferson Lab  

SciTech Connect

Nucleon transversity and single transverse spin asymmetries have been the recent focus of large efforts by both theorists and experimentalists. On-going and planned experiments from HERMES, COMPASS and RHIC are mostly on the proton or the deuteron. Presented here is a planned measurement of the neutron transversity and single target spin asymmetries at Jefferson Lab in Hall A using a transversely polarized {sup 3}He target. Also presented are the results and plans of other neutron transverse spin experiments at Jefferson Lab. Finally, the factorization for semi-inclusive DIS studies at Jefferson Lab is discussed.

Jian-Ping Chen; Xiaodong Jiang; Jen-chieh Peng; Lingyan Zhu

2005-09-07

115

ConsumerLab.com  

NSDL National Science Digital Library

It may be difficult for the average consumer to evaluate the sometimes grandiose claims that various supplements, vitamins, and other such products make on their labels and such. One way to learn about products is ConsumerLab.com, which provides independent test results and information in order to assist consumers and healthcare professionals to evaluate such products. The casual visitor will want to begin by looking over the âÂÂLatest Resultsâ area on the homepage, which provides some information on their recent tests on melatonin sleep supplements and other related nostrums. Visitors looking for information on specific products will want to direct their mouse to the âÂÂLaboratory Test Resultsâ area. Here they can look through a list of product evaluations that include nutrition bars, ginkgo biloba, and the ever-popular echinacea. The site is rounded out by a very nice area on âÂÂRecalls and Warnings, which (as its name suggests) includes information on recent notices posted by the Federal Trade Commission and other such agencies.

116

Hospital labs go under microscope.  

PubMed

Financial pressures are hitting hospital clinical labs on both the inpatient and outpatient sides. To control expenses, hospitals are teaming up to buy supplies, centralizing services and improving blood management. PMID:24933871

Aston, Geri

2014-05-01

117

State of the Lab 2012  

SciTech Connect

Ames Laboratory Director Alex King delivers the annual State of the Lab address on Thursday, May 17, 2012, the 65th Anniversary of the founding of The Ames Laboratory. This video contains highlights from the address.

King, Alex

2012-01-01

118

State of the Lab 2012  

ScienceCinema

Ames Laboratory Director Alex King delivers the annual State of the Lab address on Thursday, May 17, 2012, the 65th Anniversary of the founding of The Ames Laboratory. This video contains highlights from the address.

King, Alex

2013-03-01

119

Intro PendulumLab Model  

NSDL National Science Digital Library

The Introductory Physics Pendulum Lab program asks students to develop a model for a pendulum. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_PendulumLab.jar file will run the program if Java is installed. In order to modify this simulation (and see how it is designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: http://www.um.es/fem/Ejs/. The Intro Pendulum Lab program is one of a suite of Easy Java Simulations (Ejs) models used in Introductory Physics Labs. Ejs, a part of the Open Source Physics Project, and is designed to make it easier to access, modify and generate computer models. Additional models can be found by searching ComPADRE for Ejs.

Cox, Anne; Christian, Wolfgang; Belloni, Mario; Brock, Jacob

2008-05-30

120

High School Photonics Lab Manual  

NSDL National Science Digital Library

This pdf from OP-TEC, the National Center for Optics and Photonics Education, features the High School Photonics Lab Manual. This free 76 page pdf document is the lab manual for the course Fundamentals of Light and Lasers. This course contains the basicprinciples of light, lasers and laser safety that are needed to study specific types of laser systems,advanced geometric and physical optics, fiber optics and optical measurements.

2011-10-11

121

Density Column Lab - Part 1  

NSDL National Science Digital Library

In this first part of a two-part lab activity, students use triple balance beams and graduated cylinders to take measurements and calculate the densities of several common, irregularly shaped objects with the purpose to resolve confusion about mass and density. After this activity, conduct the associated Density Column Lab - Part 2 activity before presenting the associated Density & Miscibility lesson for discussion about concepts that explain what students have observed.

GK-12 Program,

122

Lab 3: Building a Reef  

NSDL National Science Digital Library

During this lab, students learn about the life cycle of corals, including how they grow and reproduce. Students consider the chemistry of seawater and the importance of the symbiotic relationship between corals and zooxanthellae in the formation of coral reefs. They blow CO2 through calcium hydroxide (limewater) to model how respiration assists coral in precipitating calcium carbonate. Students also build on the coral polyp models they made in Lab 2 to demonstrate coral growth, reproduction, and reef formation.

123

Practical Lessons from Place Lab  

Microsoft Academic Search

The creators of Place Lab, a location-enhanced mobile computing system, share lessons learned about leading the project and real-world deployment. Place Lab lets a device estimate its location by scanning for fixed radio beacons, such as nearby 802.11 access points and GSM (Global System for Mobile Communications) cell towers and referencing the beacons' positions cached in the mobile device's database.

Jeffrey Hightower; Anthony Lamarca; Ian E. Smith

2006-01-01

124

THE LAB@FUTURE PROJECT \\  

Microsoft Academic Search

This paper presents Lab@Future1, an advanced e-learning platform that uses novel Information and Communication Technologies to support and expand laboratory teaching practices. For this purpose, Lab@Future uses real and computer-generated objects that are interfaced using mechatronic systems, augmented reality, mobile technologies and 3D multi user environments. The main aim is to develop and demonstrate technological support for practical experiments in

Veronique Baudin; Martin Faust; Hannes Kaufmann; Vivian Litsa; Daisy Mwanza; Arnaud Pierre; Alexandra Totter

125

Probiotic Spectra of Lactic Acid Bacteria (LAB)  

Microsoft Academic Search

Lactic acid bacteria (LAB) and their probio-active cellular substances exert many beneficial effects in the gastrointestinal tract. LAB prevent adherence, establishment, and replication of several enteric mucosal pathogens through several antimicrobial mechanisms. LAB also release various enzymes into the intestinal lumen and exert potential synergistic effects on digestion and alleviate symptoms of intestinal malabsoption. Consumption of LAB fermented dairy products

A. S. Naidu; W. R. Bidlack; R. A. Clemens

1999-01-01

126

Mississippi State Physics Labs: Light-Lenses  

NSDL National Science Digital Library

This item is an introductory lab that explores lenses and optical images. In this lab students experiment with different kinds of lenses to investigate real and virtual images. The lab requires four lenses: +50mm, +120mm, +440mm, and -53mm. This item is part of a larger collection of online physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-07-19

127

Lunar Farside Radio Lab  

NASA Astrophysics Data System (ADS)

It is proposed that the Farside of the Moon should be protected legally against man-made radio pollution and uncontrolled exploitation. In fact, only by establishing a radiotelescope on the Farside of the Moon it will finally be possible to cope with the Radio Frequency Interference (RFI) that is now increasingly plaguing all of Radioastronomy, Bioastronomy and Search for Extraterrestrial Intelligence (SETI) Searches done from the surface of the Earth. It is suggested to partition the Farside into 3 sectors, each 60°wide, to ensurethe creation of a future “Lunar Farside Radio Lab” inside crater Daedalus (at 180°E) with our planned Radiotelescope (in practice a Phased Array),complete freedom to exploit the Nearside as well as the four Lagrangian points L1, L3, L4 and L5 of the Earth Moon system by allowing even some International Space Stations to be located there. It is also claimed, however, thatthe “opposite” Lagrangian point L2 should possibly be kept free of spacecrafts that would flood the Farside by the RFI they produce. Realistically, it might be difficult to comply with the latter request in view of the far-future development of a Space Base located there in order to depart towards the Asteroids and the Outer Planets at very reduced fuel consumption. A more reasonable request about any future space station located at the Earth Moon L2 point is thus that this future space station should be shielded to prevent its RFI from reaching the Farside of the Moon.A number of further astrophysical, astronautical and technical issues could just be highlighted in this study and deserve much more elaboration. To mention a few:the precise size of the “Quiet Cone” extending into space above the Farside of the Moon. Also, the experimental measurement of how quiet this Cone actually is by letting a radiometer orbit the Moon (see the web site www.rli.it);the mathematical modelling of the weak ionosphere of the Moon and its possible diffraction effects at very low frequencies. In other words, exploring the radio spectrum below 15 MHz (impossible from Earth) might open up a new era in Cosmology and Astrophysics in general;last, but not the least, the political problems involved with the future international exploitation of the Moon Farside. The IISL supported this author in this regard, but much more serious action should be undertaken, especially in conjunction with the United Nations. The protection of at least part of the Farside against wild commercial and military exploitation is regarded as the #1 priority of this study.

Maccone, Claudio

2005-03-01

128

Fourier Transform Mass Spectrometry Lab  

NSDL National Science Digital Library

This Web site discusses Boston University's Fourier Transform Mass Spectrometry (FTMS) Lab's devotion to the improvement of FTMS instrumentation and methods for its everyday biochemical functions. After discovering the importance of FTMS, visitors can find out about the lab's work in the enhancement of electrospray ion source and Cryogenic FTMS. Students can learn about the modern biochemistry's utilization of both traditional instrumentation such as gel electrophoresis and the latest devices including high performance chromatography, nuclear magnetic resonance, and X-ray crystallography. By downloading the Boston University Data Analysis (B.U.D.A.), researchers can participate in the development of analysis software for FTMS.

129

LabWrite: Transforming Lab Reports from Busy Work to Meaningful Learning Opportunities  

NSDL National Science Digital Library

Lab reports are the dreaded assignments of the laboratory course. Students dislike them, because they can be tedious and time-consuming. Instructors dislike them, because they significantly increase the grading load. For this reason, lab reports are often omitted or replaced by alternatives such as responses to lab questions, fill-in-the-blank lab manual exercises, or lab quizzes. Despite its negative associations, the lab reports can help students learn how to write scientifically using an authentic scientific writing genre that allows them to formulate hypotheses, make inferences based on findings, and develop scientific arguments--cornerstones of scientific literacy. Students are also more apt to revisit the lab procedure and reflect on the experiment when writing lab reports. Reflecting on the lab in conjunction with putting the lab in their own words provides students a very effective tool for learning the science of the lab.

Wiebe, Eric; Carter, Michael; Ferzli, Miriam

2005-11-01

130

State of the Lab Address  

ScienceCinema

In his third-annual State of the Lab address, Ames Laboratory Director Alex King called the past year one of "quiet but strong progress" and called for Ames Laboratory to continue to build on its strengths while responding to changing expectations for energy research.

131

The Mobile Math Lab Project.  

ERIC Educational Resources Information Center

Describes a mobile computer lab set up in a converted bus that is used by fourth graders as part of the math curriculum. The program, which emphasizes problem solving and spatial visualization, also addresses gender differences and in-service teacher training. The physical arrangements, including provisions for computer security, are described.…

Gray, Elaine

1991-01-01

132

Physical Therapist Assistant Fitness Lab.  

ERIC Educational Resources Information Center

Colby Community College's (CCC) Fitness Lab was established to provide the Physical Therapist Assistant (PTA) Program with a learning laboratory in which students can practice classroom-acquired skills, while at the same time promoting the physical, emotional, social, and intellectual well-being of CCC students and staff, and community members. A…

Backstrom, Kurt; And Others

133

A Lab for All Reasons.  

ERIC Educational Resources Information Center

Described is a demonstration science laboratory at the University of Florida. Discussed is laboratory design, including instructional space, lab stations, sink areas, safety areas, and a storage and distribution area. The impact of this type of design is cited. Diagrams and photographs are included. (CW)

Cronin-Jones, Linda L.

1990-01-01

134

State of the Lab Address  

ScienceCinema

In his third-annual State of the Lab address, Ames Laboratory Director Alex King called the past year one of "quiet but strong progress" and called for Ames Laboratory to continue to build on its strengths while responding to changing expectations for energy research.

King, Alex

2013-03-01

135

Editor's Corner: National Lab Day  

NSDL National Science Digital Library

In November 2009, President Obama helped launch National Lab Day (NLD)--an initiative that promises to become the most ambitious science-education partnership project ever in the United States. NLD is a nationwide movement to "build local communities of su

Metz, Steve

2010-04-01

136

Pre-Lab Questions: Magnetism  

NSDL National Science Digital Library

A series of simulation based interactive questions that were used as pre-lab questions at Kennesaw State University. The simulations in this case are based on Davidson's College Physlets. These particular questions focus on magnetism. Magnetism due to a bar magnet, a wire, a loop and a solenoid are explored.

Mzoughi, Taha

2008-07-19

137

Logistics in the Computer Lab.  

ERIC Educational Resources Information Center

Discusses ways to provide good computer laboratory facilities for elementary and secondary schools. Topics discussed include establishing the computer lab and selecting hardware; types of software; physical layout of the room; printers; networking possibilities; considerations relating to the physical environment; and scheduling methods. (LRW)

Cowles, Jim

1989-01-01

138

Plasma Dynamo Experiments  

NASA Astrophysics Data System (ADS)

The Madison Plasma Dynamo Experiment (MPDX) is under construction to explore the self-excitation processes of a range of astrophysical dynamos. Numerical simulations of von K'arm'an flow have shown that a two-vortex flow can produce a dynamo when the magnetic Reynolds number is sufficiently high, which, for a plasma, requires a large, hot, flowing and unmagnetized plasma. This poster discusses experimental plans for von K'arm'an flow in MPDX as well as prototype experiments on the Plasma Couette Experiment (PCX). The PCX is a cylindrical plasma experiment currently being used to optimize a multi-cusp magnetic confinement scheme for experiments on the magnetorotational instability. It also provides a platform for prototyping two types of plasma sources (electron cyclotron heating and LaB6 cathode) as well as an ExB stirring mechanism, diagnostics, and future MPDX dynamo scenarios. This poster will review recent findings from PCX involving the fabrication and operation of a new LaB6 electron source and its use in driving Dean flow. While currently attainable densities (ne 10^17 m-3, using electron cyclotron heating) require Hall MHD in calculating the plasma response to various flow profiles, the new LaB6 electron source may allow high enough densities to place the plasma in a purely MHD regime. Work supported by NSF.

Weisberg, David; Collins, Cami; Katz, Noam; Wallace, John; Khalzov, Ivan; Jara-Almonte, Jonathan; Forest, Cary

2011-11-01

139

Lab Oversight: A Building Block of Trust  

MedlinePLUS

... of this website will be limited. Search Help? Lab Oversight: A Building Block of Trust Share this ... patient in my practice who hasn't had lab tests," says Dr. Scott Luria, an internal medicine ...

140

Environment monitoring using LabVIEW.  

National Technical Information Service (NTIS)

A system has been developed for electronically recording and monitoring temperature, humidity, and other environmental variables at the Silicon Detector Facility located in Lab D. The data is collected by LabVIEW software, which runs in the background on ...

J. Hawtree

1995-01-01

141

The Development of MSFC Usability Lab  

NASA Technical Reports Server (NTRS)

This conference poster reviews the development of the usability lab at Marshall Space Flight Center. The purpose of the lab was to integrate a fully functioning usability laboratory to provide a resource for future human factor assessments. and to implement preliminary usability testing on a MSFC website to validate the functionality of the lab.

Cheng, Yiwei; Richardson, Sally

2010-01-01

142

Jefferson Lab Hands-on Activities  

NSDL National Science Digital Library

These are some of the hands-on activities used in Jefferson Lab's BEAMS program. In BEAMS, classes of 6th, 7th and 8th grade students are exposed to the Lab's scientific environment. For five consecutive days during school hours, classes of 6th grade students and their teachers participate in these science and math activities conducted with Jefferson Lab staff.

Education, Thomas J.

143

Ejs Intro Mechanics Lab Package  

NSDL National Science Digital Library

The Introductory Physics Lab package contains Easy Java Simulations (Ejs) models used in Introductory Physics Laboratories which ask students to develop a series of models for simple mechanical systems. Ejs, a part of the Open Source Physics Project, is designed to make it easier to access, modify and generate computer models. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_lab.jar file will run the program if Java is installed. In order to modify the simulations (and see how they are designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: http://www.um.es/fem/Ejs/. Additional models (including independent copies of each of the exercises contained in this package) can be found by searching ComPADRE for Ejs.

Cox, Anne; Christian, Wolfgang; Belloni, Mario

2008-06-03

144

Jefferson Lab. FEL user facility  

NASA Astrophysics Data System (ADS)

Jefferson Lab's IR Demo FEL Facility includes an associated 600 m2 user facility containing six separate laboratory areas. In the summer of 1999 we began delivery of beam int two of these labs as part of our commissioning of the FEL optical transport and laser safety systems. The high average power capability in the mid-IR, along with an ultrafast high PRF temporal structure makes this laser a unique source for both applied and basic research. While commissioning, we conducted several test, primarily of laser-materials interactions that take advantage of the unique characteristics of this FEL. An overview of the FEL facility and its current performance, along with a synopsis of current and future experiments, will be presented.

Shinn, Michelle D.; Benson, Stephen V.; Biallas, George; Bohn, Courtlandt L.; Douglas, David; Dylla, F.; Evans, Richard; Fugitt, Jock; Gubeli, J.; Hill, Richard; Jordan, Kevin; Krafft, Geoffrey; Li, Rui; Merminga, Lia; Neil, George R.; Oepts, Dick; Piot, Phillipe; Preble, Joe; Siggins, Tim; Walker, Richard; Yunn, Byung

2000-03-01

145

PBS Learning Media: Forces Lab  

NSDL National Science Digital Library

This four-part interactive simulation explores some of the most important forces to be considered in structural engineering. It's a fun way for kids in Grades 4-8 to learn about compression, tension, torque, and shear -- and then apply this knowledge to further explore structural load. In the "Materials Lab" section, they stretch and compress 8 different types of building materials: wood, plastic, aluminum, brick, concrete, reinforced concrete, cast iron, and steel. Last, in the "Shapes Lab", they choose from rectangular, arched, and triangular shapes and test their stability. PBS Learning Media is a collection of 10,000+ videos, lessons, and activities compiled by researchers and experienced teachers to promote use of digital resources in the classroom.

2011-10-04

146

Design labs: Students' expectations and reality  

NASA Astrophysics Data System (ADS)

In a study reported in PERC 2004 the authors described how introductory physics labs in which students design their own experiments help them develop scientific abilities. These include the ability to design an experiment to solve a problem, to collect and analyze data and to communicate the details of the experimental procedure. The goal of the present study is to investigate the social aspect of student learning in these labs: whether students' expectations are consistent with the goals of the labs, whether student assessment of their learning in the labs matches the goals, and whether students perceive the labs as helpful in learning useful skills.

Etkina, Eugenia; Murthy, Sahana

2006-02-01

147

Design labs: Students' expectations and reality  

NSDL National Science Digital Library

In a study reported in PERC 2004 the authors described how introductory physics labs in which students design their own experiments help them develop scientific abilities. These include the ability to design an experiment to solve a problem, to collect and analyze data and to communicate the details of the experimental procedure. The goal of the present study is to investigate the social aspect of student learning in these labs: whether students' expectations are consistent with the goals of the labs, whether student assessment of their learning in the labs matches the goals, and whether students perceive the labs as helpful in learning useful skills.

Etkina, Eugenia; Murthy, Sahana

2009-07-13

148

Sea Scallop Shell Lab Handout  

NSDL National Science Digital Library

Used in combination with the Sea Scallop Shell Lab teacher's guide, students will examine sea scallop shells to figure out as much as possible about the scallops living on the sea floor in one three important fishery grounds, Hudson Canyon, off New Bedford, MA, and George's Bank. The activity emphasizes observation, measurements, and basic calculations. The teacher's guide is available from the COSEE-NE OSEI resource site.

149

Lab 3: Discovering Local Data  

NSDL National Science Digital Library

In Labs 1 and 2 students combined their observations at the study site with life experience and reasoning as they made a list of the ways in which components and elements of the Earth system are interconnected. In this investigation they analyze data that suggest some of the same kinds of interconnectedness but that also raise some questions. Their life experiences and reasoning skills continue to be essential as they attempt to address the mysteries.

150

New Features in ADS Labs  

NASA Astrophysics Data System (ADS)

The NASA Astrophysics Data System (ADS) has been working hard on updating its services and interfaces to better support our community's research needs. ADS Labs is a new interface built on the old tried-and-true ADS Abstract Databases, so all of ADS's content is available through it. In this presentation we highlight the new features that have been developed in ADS Labs over the last year: new recommendations, metrics, a citation tool and enhanced fulltext search. ADS Labs has long been providing article-level recommendations based on keyword similarity, co-readership and co-citation analysis of its corpus. We have now introduced personal recommendations, which provide a list of articles to be considered based on a individual user's readership history. A new metrics interface provides a summary of the basic impact indicators for a list of records. These include the total and normalized number of papers, citations, reads, and downloads. Also included are some of the popular indices such as the h, g and i10 index. The citation helper tool allows one to submit a set of records and obtain a list of top 10 papers which cite and/or are cited by papers in the original list (but which are not in it). The process closely resembles the network approach of establishing "friends of friends" via an analysis of the citation network. The full-text search service now covers more than 2.5 million documents, including all the major astronomy journals, as well as physics journals published by Springer, Elsevier, the American Physical Society, the American Geophysical Union, and all of the arXiv eprints. The full-text search interface interface allows users and librarians to dig deep and find words or phrases in the body of the indexed articles. ADS Labs is available at http://adslabs.org

Accomazzi, Alberto; Kurtz, M. J.; Henneken, E. A.; Grant, C. S.; Thompson, D.; Di Milia, G.; Luker, J.; Murray, S. S.

2013-01-01

151

Rice Virtual Lab in Statistics  

NSDL National Science Digital Library

This site provides resources to assist students in understanding introductory statistics. Multimedia instruction, demonstrations, case studies and an analysis lab are provided. Topics covered include analysis of variance, boxplot, confidence interval, contrast among means, correlated t-test, correlation, histogram, independent groups t-test, regression, and a repeated measures ANOVA. The simulations/demonstrations are free JAVA applets in the public domain. Simulations and demonstrations and JBuilder source code are available for download.

2008-12-31

152

Robotics Sensor Based Planning Lab  

NSDL National Science Digital Library

The Robotics Sensor Based Planning Lab at Carnegie Mellon University conducts research into robotics motion planning, coverage, sensor-based planning, and visibility. Their site informs visitors about the research projects and researchers and provides postscript copies of related papers. Short demonstration videos, available under Projects, show sensorless and sensor-based applications. CMU's Distributed Robotics and Manipulation Reading Group also posts postscript files of their reading list.

1998-01-01

153

Physics Lab Online: Practice Problems  

NSDL National Science Digital Library

This collection of student practice problems addresses topics typically covered in an algebra-based physics course. The values in the problems are randomly generated to give students the opportunity to work independently and to repeat a problem set as needed. Students can check answers as they do the problems. This page is part of a larger set of curriculum materials by the same author. It contains syllabi, lessons, hands-on labs, AP review exercises, and assessments.

2011-06-22

154

Out-of-plane microvalves for whole blood separation on lab-on-a-CD  

NASA Astrophysics Data System (ADS)

The emergence of lab-on-a-CD technology provides a centrifugal and compact platform for high throughput blood analysis in point-of-care (POC) diagnostics. Blood separation of the whole blood is the first step for clinical blood diagnosis. This paper describes a novel design of an out-of-plane microvalve that enables high performance of whole blood separation on lab-on-a-CD centrifugal devices. In our lab-on-a-CD design, blood cells and plasma are redistributed into a downstream sedimentation reservoir and an upstream supernatant reservoir, respectively, when the device spins. By tuning the rotational speed, the 'close' or 'open' status of an out-of-plane microvalve embedded in the lab-on-a-CD device is controlled to isolate these two reservoirs. Compared with a similar design but without the out-of-plane microvalve, this novel microvalve structure can effectively prevent blood cells from diffusing back to the supernatant reservoir containing pure plasma, and thus improve the performance of blood separation as well as subsequent blood analysis. We demonstrate that the lab-on-a-CD device with out-of-plane microvalves can achieve 99.9% plasma purity and 96 ± 0.5% plasma yield for the whole blood. Because of its simple structure and easily controlled working mechanism, the out-of-plane microvalve not only leads to high performance of whole blood separation, but also makes the manufacturing of this type of lab-on-a-CD device easy and inexpensive. If integrated into some existing lab-on-a-CD devices, the out-of-plane microvalve may also help improve their performance.

Li, Tingjie; Zhang, Limin; Leung, Kar Man; Yang, Jun

2010-10-01

155

Mag Lab U: Georg Ohm  

NSDL National Science Digital Library

This is a short biography of George Ohm, the 19th-century German physicist who formulated Ohm's Law, which describes the mathematical relationship between electrical current, resistance, and voltage. Unlike most German scientists at the time, Ohm took a mathematical approach to electricity and magnetism. Read about his perseverance in the face of significant adversity and initial poor reception to his theory by scientific peers. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

Neaves, Shannon

2010-05-26

156

IOL: InterOperability Lab  

NSDL National Science Digital Library

The University of New Hampshire has compiled this excellent collection of resources on networking and computer technology. Over twenty categories are represented, including emerging technologies such as 10 Gigabit Ethernet, Very high rate Digital Subscriber Line (VDSL), and wireless standards. Many of the resources are papers or tutorials written by researchers at the UNH InterOperability Lab, while others are links to various academic and industry efforts. The site is suitable for a broad audience, as it has basic introductory information as well as more advanced white papers.

157

Polarized Positrons at Jefferson Lab  

SciTech Connect

A novel concept for producing polarized positrons at Jefferson Lab using the CEBAF polarized electron photo-injector is presented. This approach relies on the polarization transfer from low energy highly polarized electrons to positrons via bremsstrahlung followed by pair production in a conversion target. An experiment to test this concept is discussed on the basis of GEANT4 simulations. It is shown that this low energy approach, which benefits from recent advances in high current high polarization electron sources, can yield positron longitudinal polarization up to 40%.

Dumas, Jonathan; Grames, Joseph; Voutier, Eric

2009-01-01

158

Polarized Positrons at Jefferson Lab  

SciTech Connect

A novel concept for producing polarized positrons at Jefferson Lab using the CEBAF polarized electron photo-injector is presented. This approach relies on the polarization transfer from low energy highly polarized electrons to positrons via bremsstrahlung followed by pair production in a conversion target. An experiment to test this concept is discussed on the basis of GEANT4 simulations. It is shown that this low energy approach, which benefits from recent advances in high current high polarization electron sources, can yield positron longitudinal polarization up to 40%.

J. Dumas, J. Grames, E. Voutier

2009-08-01

159

Polarized Positrons at Jefferson Lab  

SciTech Connect

A novel concept for producing polarized positrons at Jefferson Lab using the CEBAF polarized electron photo-injector is presented. This approach relies on the polarization transfer from low energy highly polarized electrons to positrons via bremsstrahlung followed by pair production in a conversion target. An experiment to test this concept is discussed on the basis of GEANT4 simulations. It is shown that this low energy approach, which benefits from recent advances in high current high polarization electron sources, can yield positron longitudinal polarization up to 40%.

Dumas, J. [Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS-Universite Joseph Fourier-INP 53, rue des Martyrs, 38026 Grenoble Cedex (France); Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue, Newport News, VA 23606 (United States); Grames, J. [Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue, Newport News, VA 23606 (United States); Voutier, E. [Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS-Universite Joseph Fourier-INP 53, rue des Martyrs, 38026 Grenoble Cedex (France)

2009-08-04

160

Jefferson Lab phenomenology: selected highlights  

SciTech Connect

An overview of recent experimental highlights from Jefferson Lab is presented. We review the status of baryon spectroscopy, including the search for pentaquarks, as well as measurements of electromagnetic form factors of the nucleon, featuring the proton G{sub E}/G{sub M} ratio and the determination of the strangeness form factors. In inclusive scattering, we describe recent studies of quark-hadron duality in structure functions in the resonance-scaling transition region, and outline future physics plans at an energy upgraded 12 GeV facility.

Wolodymyr Melnitchouk

2005-07-07

161

Mississippi State Physics Labs: Electricity and Magnetism  

NSDL National Science Digital Library

This item is an introductory lab that examines several aspects of electricity and magnetism. The lab contains three sections that explore the basic properties of magnets, how electromagnets work, how simple electric motors work, and a take home activity in which students create a circuit diagram of their home. Materials are inexpensive and readily available. This item is part of a larger collection of online physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-01-26

162

Rock cycle in chocolate lab  

NSDL National Science Digital Library

In this lab students receive two small blocks (1 cm3) of chocolate (white and dark), and follow it through the entire rock cycle. The chocolate blocks are melted on a hot plate, with different melting temperatures and rheologies due to compositional differences. The "magma" is then cooled either slowly or quickly, and the resulting textures are examined and compared to granite and basalt hand samples. The "igneous" chocolate is then ground and abraded to show erosion, and the eroded material is pressure-lithified to form "sedimentary" chocolate. The sedimentary chocolate then undergoes greater pressure to mimic metamorphism, and additional heat re-melts the chocolate back into magma. Students compare the chocolate "rocks" in each of these stages with real rock samples. The final assignment is to describe the "life story" of complex conglomerate rock sample. The lab is a bit messy and takes a bit of preparation, but students come away with a significantly better understanding of the rock cycle as a whole and each of its component parts.

Stelling, Pete

163

USC Institute for Creative Technologies: Graphics Lab  

NSDL National Science Digital Library

The Graphics Lab is part of the University of Southern California's Institute for Creative Technologies. The lab performs research on computer graphics and modeling techniques such as image-based lighting, range scanning, and animation. This is all made possible by a U.S. Army contract "to advance the state of immersive training simulation." The Lab's homepage offers many details on the various projects within each research area; there are several publications that can be downloaded to complement this background material. Some software, such as HDRShop (used for High-Dynamic Range Image Editing), and data are also available on the Lab's Web site.

2002-01-01

164

MatLab Script and Functional Programming  

NASA Technical Reports Server (NTRS)

MatLab Script and Functional Programming: MatLab is one of the most widely used very high level programming languages for scientific and engineering computations. It is very user-friendly and needs practically no formal programming knowledge. Presented here are MatLab programming aspects and not just the MatLab commands for scientists and engineers who do not have formal programming training and also have no significant time to spare for learning programming to solve their real world problems. Specifically provided are programs for visualization. The MatLab seminar covers the functional and script programming aspect of MatLab language. Specific expectations are: a) Recognize MatLab commands, script and function. b) Create, and run a MatLab function. c) Read, recognize, and describe MatLab syntax. d) Recognize decisions, loops and matrix operators. e) Evaluate scope among multiple files, and multiple functions within a file. f) Declare, define and use scalar variables, vectors and matrices.

Shaykhian, Gholam Ali

2007-01-01

165

Lab Set-Up and Safety  

NSDL National Science Digital Library

Whether your assigned classroom is for science labs or there is a specific lab area shared among several teachers, you need to set up properly for group experiments and other hands-on activities. There are several ways to set up lab groups in various combinations, depending upon class size, available materials, and storage space. Some schools have spacious rooms with desks and lab areas that include cabinets, sinks, and an adjoining teacher prep/storage room, while others may have one sink, little storage space, and desks or tables with stools or chairs.

Swango, C. J.; Steward, Sally B.

2003-01-01

166

Inkjet printed structures for smart lab-on-chip systems  

NASA Astrophysics Data System (ADS)

Inkjet printing is a digital printing technique that is capable of depositing not only inks, but functional materials onto different substrates in an additive way. In this paper, applications of inkjet printed structures for microfluidic lab-on-chip systems are discussed. Such systems are promising for different chemical or biochemical analysis tasks carried out at the Point-of-Care level and therefore due to cost reasons are often fabricated from polymers. The paper discusses inkjetprinted wiring structures and electroactive polymer (EAP) actuators for use in microfluidic lab-on-chip systems. Silver and gold wirings are shown that are fabricated by printing metal nanoparticle inks onto polymer substrates. After printing the structures are sintered using argon plasma sintering, a low-temperature sintering process that is compatible with polymer substrates. The wirings consist of several electrode like structures and contact pads and feature minimum structure sizes of approximately 70 ?m. They can be used for electrodes, fluid presence detectors and localized ohmic heaters in lab-on-chip systems. Based on that an all inkjet-printed EAP actuator then is discussed. Membrane-type bending actuators generate deflections of approximately 5 ?m when being driven at a resonance frequency of 1.8 kHz with 110 V. Derived from that and assuming passive valves on-chip pumping rates in the range of 0.5 ml/min can be estimated.

Beckert, E.; Eberhardt, R.; Pabst, Oliver; Kemper, Falk; Shu, Zhe; Tünnermann, Andreas; Perelaer, Jolke; Schubert, Ulrich; Becker, Holger

2013-03-01

167

Improving the Quality of Lab Reports by Using Them as Lab Instructions  

ERIC Educational Resources Information Center

Lab exercises are quite popular in teaching science. Teachers have numerous goals in mind when teaching science laboratories. Nevertheless, empirical research draws a heterogeneous picture of the benefits of lab work. Research has shown that it does not necessarily contribute to the enhancement of practical abilities or content knowledge. Lab

Haagen-Schuetzenhoefer, Claudia

2012-01-01

168

SLAC All Access: Laser Labs  

ScienceCinema

From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

Minitti, Mike; Woods Mike

2014-06-03

169

Jefferson Lab Experimental Hall A  

NASA Astrophysics Data System (ADS)

Jefferson Lab's Hall A has a pair of thirty-meter long, high-resolution (10-4), 4 GeV/c superconducting spectrometers. Most Hall A experiments will use these spectrometers in coincidence, with one detecting scattered electrons and the other protons or pions. The proton spectrometer includes a focal plane polarimeter. Planned experiments include: high-precision nucleon form factor measurements using polarization transfer; investigations of weak neutral currents via parity violation; systematic studies of few nucleon systems; and measurements of the nuclear response at small inter-nucleon distances and of the effect of the nuclear medium on nucleon structure. This paper will review the design of the spectrometers, detection systems, and beam line, and present the results of early measurements of the characteristics of the equipment. The planned experimental program will also be discussed. Additional information is available at URL http://www.cebaf.gov/halla/halla.html.

Cardman, Lawrence S.

1996-10-01

170

Jefferson Lab Experimental Hall C  

NASA Astrophysics Data System (ADS)

Jefferson Lab's Hall C went into initial operation in November 1995. The hall has a short orbit spectrometer (SOS) for short-lived particles such as pions and kaons and a high-momentum spectrometer (HMS) usually used for electrons. The SOS can also be used for protons. The HMS can range to 7 GeV/c. Both the SOS and HMS have typical resolutions of (10-3). Experiments for this hall range from measuring the neutron electric form factor, to color transparency, to creating strange nuclei. This paper will present the optical capabilities of the spectrometers, the parameters of the detection systems, and the overall beam line characteristics of the hall as determined from the results from the recent physics experiments along with the upcoming experimental schedule. Additional information is available at URL http://www.cebaf.gov/hallc.html.

Carlini, Roger D.

1996-10-01

171

SLAC All Access: Laser Labs  

SciTech Connect

From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

Minitti, Mike; Woods Mike

2013-03-01

172

Space Science Lab at PARI  

NASA Astrophysics Data System (ADS)

Native American, Hispanic, African American, and other underrepresented high school students in rural Western North Carolina have unprecedented opportunity as researchers in the Space Science Lab to conduct visible and radio observations of the Sun. The program involves 90 students over a three year period. The students conduct their own research and also interact with scientists around the world. The primary goal is to reach students who otherwise would not have this opportunity and motivate them to develop the critical thinking skills necessary for objective scientific inquiry. Students develop skills in electronics, computer sciences, astronomy, physics and earth sciences. Equally important is the hope that the students will become interested in pursuing careers in research or other science-related areas. The program objectives are aligned with the North Carolina Standard Course of Study for grades 9-12 in the areas of Earth/Environmental Science, Physical Science and Physics. The first group of 27 students spent a week in the Space Science Lab located on the campus of the Pisgah Astronomical Research Institute (PARI) during the Summer 2006. Students constructed their own JOVE radio telescopes that they took home to continue their observations. They share their results during four follow-up sessions throughout the school year. The students also have Internet access to radio telescopes and solar monitoring equipment at PARI. We expect their enthusiasm for science will increase by experiencing research investigations that are fun and relevant to their understanding of the world around them. We gratefully acknowledge support from the Burroughs Wellcome Fund Student Science Enrichment Program.

Castelaz, Michael W.; Blake, M.; Clavier, D.; Whitworth, C.; Cline, J. D.

2006-12-01

173

A Web Lab for Mobile Robotics Education  

Microsoft Academic Search

This paper presents an architecture for building remote access laboratories (or Web labs) following the service-oriented computing approach. In this architecture the application's building blocks are services that can be recursively composed resulting in more comprehensive services. Remote access laboratories can benefit of this approach. Every lab resource (physical or logical) is modeled and implemented as a service (in our

Paulo R. S. L. Coelho; Rodrigo F. Sassi; Eleri Cardozo; Eliane G. Guimarăes; Luis F. Faina; Alex Z. Lima; Rossano P. Pinto

2007-01-01

174

Converting Your Lab from Verification to Inquiry  

NSDL National Science Digital Library

This chapter offers insight into how to create laboratories that provide students with research experiences within the constraints of time, resources, and course formats that most faculty face. It provides a research-based rationale for investigative or inquiry-based labs; an example of their implementation in a large-enrollment, introductory course for mixed majors; and recommendations for converting labs.

Russell, Connie P.; French, Donald P.

2006-01-01

175

SPARC_LAB present and future  

NASA Astrophysics Data System (ADS)

A new facility named SPARC_LAB has been recently launched at the INFN National Laboratories in Frascati, merging the potentialities of the former projects SPARC and PLASMONX. We describe in this paper the status and the future perspectives at the SPARC_LAB facility.

Ferrario, M.; Alesini, D.; Anania, M.; Bacci, A.; Bellaveglia, M.; Bogdanov, O.; Boni, R.; Castellano, M.; Chiadroni, E.; Cianchi, A.; Dabagov, S. B.; De Martinis, C.; Di Giovenale, D.; Di Pirro, G.; Dosselli, U.; Drago, A.; Esposito, A.; Faccini, R.; Gallo, A.; Gambaccini, M.; Gatti, C.; Gatti, G.; Ghigo, A.; Giulietti, D.; Ligidov, A.; Londrillo, P.; Lupi, S.; Mostacci, A.; Pace, E.; Palumbo, L.; Petrillo, V.; Pompili, R.; Rossi, A. R.; Serafini, L.; Spataro, B.; Tomassini, P.; Turchetti, G.; Vaccarezza, C.; Villa, F.; Dattoli, G.; Di Palma, E.; Giannessi, L.; Petralia, A.; Ronsivalle, C.; Spassovsky, I.; Surrenti, V.; Gizzi, L.; Labate, L.; Levato, T.; Rau, J. V.

2013-08-01

176

Hydrogel Beads: The New Slime Lab?  

ERIC Educational Resources Information Center

Creating slime fascinates students. Unfortunately, though intrigue is at its peak, the educational aspect of this activity is often minimal. This article describes a chemistry lab that closely relates to the slime lab and allows high school students to explore the concepts of chemical bonding, properties, and replacement reactions. It involves the…

Brockway, Debra; Libera, Matthew; Welner, Heidi

2011-01-01

177

Eliminating Mercury Thermometers from the Lab  

Microsoft Academic Search

This brief laboratory safety note describes how electronic cooking thermometers can be used to replace standard mercury thermometers in the undergraduate organic chemistry lab. Various factors, including safety, cost, and ease of use, were considered. The stainless steel thermometer probe connected to a LCD display unit adequately serves multiple purposes in the organic lab while eliminating the hazards associated with

T. Stephen Everett

1997-01-01

178

Teaching Chemistry Lab Safety through Comics  

Microsoft Academic Search

As a means for raising students' interest in aspects pertaining to chemistry lab safety, this article presents a novel approach to teaching this important subject. Comic book lab scenes that involve fictional characters familiar to many students are presented and discussed as to the safety concerns represented in those images. These are discussed in a safety prelab session. For the

Pasquale di Raddo

2006-01-01

179

A design lab for statistical signal processing  

Microsoft Academic Search

In the spring of 1991 a software laboratory was added to the graduate statistical signal processing class at Berkeley. The emphasis of this lab was on high-level experimentation with signal processing algorithms. A separate course on design methodology for signal processing covers VLSI design and programmable digital signal processors (DSPs), so this particular lab steered clear of these issues. A

Edward A. Lee

1992-01-01

180

Conducting First Quarter Labs with Few Chemicals.  

ERIC Educational Resources Information Center

Outlines chemistry labs used during the first quarter of study and advises about framing the course for students. Topics of the labs include observation; blind observation; measurement, determination of conversion factors, and percent error; taking and reporting data over time; and density. (DDR)

Kelly, Michael J.

2002-01-01

181

Berkeley Lab 2nd Grader Outreach  

ScienceCinema

The Berkeley Lab IT Department sponsored a community outreach program aimed at teaching young children about computers and networks. Second graders from LeConte Elementary School joined Lab IT Staff for a day of in-depth exercises and fun.

Scoggins, Jackie; Louie, Virginia

2013-05-29

182

Sea Scallop Shell Lab Teacher's Guide  

NSDL National Science Digital Library

Used in combination with the Sea Scallop Lab handout, students will examine sea scallop shells to determine their size, approximate age, and meat yield. This lab activity is complete with objectives, math and science standards, materials list, procedure, and extensions. The handout is available from the COSEE-NE OSEI resource site.

183

Traditional Labs + New Questions = Improved Student Performance.  

ERIC Educational Resources Information Center

Presents three typical lab activities involving the breathing rate of fish, the behavior of electromagnets, and tests for water hardness to demonstrate how labs can be modified to teach process skills. Discusses how basic concepts about experimentation are developed and ways of generating and improving science experiments. Includes a laboratory…

Rezba, Richard J.; And Others

1992-01-01

184

The development lab experience: dancing with wolves  

Microsoft Academic Search

The Whitireia Development Lab (DevLab) was conceived and created two years ago with the intent of developing a multi purpose environment to allow industry and academia to interact on a variety of levels for the benefit of both parties. Our objective was to create industry alliances, provide resources for the BIT 3rd year projects, facilitate faculty research while becoming self

Sue Chard; Nick Wempe

185

Supercharging Lessons with a Virtual Lab  

ERIC Educational Resources Information Center

The authors describes their experiences incorporating the virtual lab into a simple circuit lesson during an energy unit in a sixth-grade class. The lesson included a hands-on group experiment using wire, batteries, and light bulbs to make a circuit and an online simulation, using a virtual lab. Class discussions, student inquiries, and the study…

Stewart, Jefferson; Vincent, Daniel

2013-01-01

186

The Living Lab: Navigating into cells  

Cancer.gov

The Living Lab is an innovative partnership between NIH institutes and private industry, to use cutting-edge electron microscopy to navigate into cells and viruses. Sriram Subramaniam, Ph. D., director of the NIH component of the Living Lab, is pictured holding a model of the three-dimensional structure of a portion of a protein complex from the surface of HIV.

187

A Comparative Study on Real Lab and Simulation Lab in Communication Engineering from Students' Perspectives  

ERIC Educational Resources Information Center

Over the years, rapid development in computer technology has engendered simulation-based laboratory (lab) in addition to the traditional hands-on (physical) lab. Many higher education institutions adopt simulation lab, replacing some existing physical lab experiments. The creation of new systems for conducting engineering lab activities has raised…

Balakrishnan, B.; Woods, P. C.

2013-01-01

188

Lab Report Writing (And Teaching!) Made Easy  

NSDL National Science Digital Library

This paper reports on a project to improve students ability to write better lab reports and assist teaching assistants (TAs) in grading reports in a consistent manner. A lab report teaching system was developed that includes lab report templates, teaching assistant instructions, grading rubrics, examples, peer review materials and instructions, and recommendations for quickly providing student feedback (grading). These materials were developed for project-based labs across the electrical engineering curriculum and utilize methods to write weekly lab updates that are combined into a final lab report, mimicking methods commonly used in industry. The technical writing information was adapted to all levels of complexity to help students from freshman through senior years. The system begins with instruction on writing very basic reports, and builds each year on previous knowledge and practices, to prepare students to later write complex reports. This system is designed to improve students understanding of labs (by writing to learn) in addition to preparing them for the communication intensive workplace. The amount of time spent grading such reports is often a primary concern, as this is commonly given as a reason for not requiring advanced writing assignments in engineering classes. Detailed guidelines and grading rubrics are included in this manual to instruct TAs on better and more consistent grading techniques. Guidelines for checking both lab books and formal lab reports help improve TA training and grading consistency, reducing student complaints. Although this system was designed for an electrical engineering program, it can also be adapted to other technical fields and used for various scientific lab reports.

Furse, Cynthia; Magleby, Alyssa

2009-10-01

189

University of Portland Summer Courses- Anatomy & Anatomy Lab  

NSDL National Science Digital Library

This website provides course information for intensive course study during summer school at the University of Portland. The courses available include: Anatomy, Anatomy Lab, Physiology and Physiology Lab.

University of Portland (University of Portland)

2012-07-24

190

Teaching Chemistry Lab Safety through Comics  

NASA Astrophysics Data System (ADS)

As a means for raising students' interest in aspects pertaining to chemistry lab safety, this article presents a novel approach to teaching this important subject. Comic book lab scenes that involve fictional characters familiar to many students are presented and discussed as to the safety concerns represented in those images. These are discussed in a safety prelab session. For the sake of comparison, students are then shown images taken from current chemistry journals of safety-conscious contemporary chemists at work in their labs. Finally the need to adhere to copyright regulations for the use of the images is discussed so as to increase students' awareness of academic honesty and copyright issues.

di Raddo, Pasquale

2006-04-01

191

The ALPHA Lab at UC Berkeley  

NSDL National Science Digital Library

The Alpha Lab at the University of California at Berkeley researches and develops robotics systems for high-precision manufacturing. Specifically, it combines mathematical algorithms and industrial automation to build low-cost, reliable tools for "feeding, fixturing and grasping." The projects section of the lab's Web site describes a number of experiments and model implementations for robotics operation. Many of these have Java applets that demonstrate the principles involved in handling differently shaped objects. There are also discussions of various projects in computational physiology and Internet telerobotics. The lab's director has many of his publications available online.

192

Jefferson Lab Experimental Hall B  

NASA Astrophysics Data System (ADS)

Jefferson Lab's Hall B contains the CEBAF Large Acceptance Spectrometer (CLAS). Its main mission is to study electron- and photon-induced reactions that require the detection of several, only loosely correlated particles in the hadronic final state. Experiments range from the study of meson and nucleon resonances to spin structure function measurements, and multi-nucleon knockout. The CLAS is a toroidal multi-gap spectrometer; its magnetic field is generated by six iron-free superconducting coils. The particle detection system consists of drift chambers to follow the trajectories of charged particles, Cerenkov counters for the identification of electrons, scintillation counters for time-of-flight measurements, and shower counters to identify electrons, and to detect photons and neutrons. A Bremsstrahlung tagging spectrometer for real photon experiments is located at the entrance of the hall. CLAS' high data rate will result in a terabyte per day to permanent storage media. This paper will address the anticipated performance of CLAS as well as the upcoming experimental schedule. Additional information is available at URL http://www.cebaf.gov/clas/CLAS.html.

Mecking, Bernhard A.

1996-10-01

193

Lab-on-a-Chip  

NASA Technical Reports Server (NTRS)

Labs on chips are manufactured in many shapes and sizes and can be used for numerous applications, from medical tests to water quality monitoring to detecting the signatures of life on other planets. The eight holes on this chip are actually ports that can be filled with fluids or chemicals. Tiny valves control the chemical processes by mixing fluids that move in the tiny channels that look like lines, connecting the ports. Scientists at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama designed this chip to grow biological crystals on the International Space Station. Through this research, they discovered that this technology is ideally suited for solving the challenges of the Vision for Space Exploration. For example, thousands of chips the size of dimes could be loaded on a Martian rover looking for biosignatures of past or present life. Other types of chips could be placed in handheld devices used to monitor microbes in water or to quickly conduct medical tests on astronauts. (NASA/MSFC/D.Stoffer)

2004-01-01

194

Labs not in a lab: A case study of instructor and student perceptions of an online biology lab class  

NASA Astrophysics Data System (ADS)

Distance learning is not a new phenomenon but with the advancement in technology, the different ways of delivering an education have increased. Today, many universities and colleges offer their students the option of taking courses online instead of sitting in a classroom on campus. In general students like online classes because they allow for flexibility, the comfort of sitting at home, and the potential to save money. Even though there are advantages to taking online classes, many students and instructors still debate the effectiveness and quality of education in a distant learning environment. Many universities and colleges are receiving pressure from students to offer more and more classes online. Research argues for both the advantages and disadvantages of online classes and stresses the importance of colleges and universities weighing both sides before deciding to adopt an online class. Certain classes may not be suitable for online instruction and not all instructors are suitable to teach online classes. The literature also reveals that there is a need for more research on online biology lab classes. With the lack of information on online biology labs needed by science educators who face the increasing demand for online biology labs, this case study hopes to provide insight into the use of online biology lab classes and the how students and an instructor at a community college in Virginia perceive their online biology lab experience as well as the effectiveness of the online labs.

Doiron, Jessica Boyce

195

MIT: Computer Science and Artificial Intelligence Lab  

NSDL National Science Digital Library

The MIT Computer Science and Artificial Intelligence Lab is the result of a merger in 2003 of the Artificial Intelligence Lab and the Lab for Computer Science. The interdepartmental laboratory conducts research in "both computation and artificial intelligence, broadly construed." The four main research areas include: Architecture, Systems, and Networks; Theory; Language, Learning, Vision, and Graphics; and Physical, Biological, and Computational Systems. The site lists the various research projects, each with an abstract describing the lab's approach and current progress on the project. The Research Activities section provides links to specific project websites of CSAIL researchers. They have not yet developed a CSAIL publications series, so research continues to be published under the Artificial Intelligence Laboratory and Laboratory for Computer Science publication series, which are also available from this website.

196

Administrator Helps Students Discover Lab Day  

NASA Video Gallery

NASA Administrator Charles Bolden visited the Langdon Elementary School in Washington to support National Lab Day. Bolden, a veteran of four space shuttle flights, spoke with the fifth graders abou...

197

SMILE Lab: Exploring Series and Parallel Circuits  

NSDL National Science Digital Library

This website contains instructions for a lab that explores the properties of series and parallel circuits. The instructions include materials needed, procedures for the students to follow, expected results, and a brief discussion of the physical concepts involved.

Johnson, Porter

2007-02-05

198

Lab 5 - A VHDL Reaction Timer  

NSDL National Science Digital Library

This lab activity from the Digital Logic Project combines many advanced VHDL techniques including timers, seven segment display drivers, packages and functions, and state machines to create a simple game that tests a personâÂÂs reaction time.

2012-07-10

199

Math Across the Curriculum in Biology Labs  

NSDL National Science Digital Library

The American Mathematical Association of Two-Year Colleges (AMATYC) has compiled a collection of mathematics resources related to various subjects and disciplines. âÂÂMath Across the Community College Curriculumâ is the title of the collection, which includes great math resources and applications for educators and students alike. This biology lab resource was created by Melissa Cannon, Jennifer Boyd, Khalid Khouri, and Larry Shaffer of Northwest Mississippi Community College. The âÂÂCourse Objectivesâ document provides a brief description of the course, outcomes for the project, and learning outcomes for students. A lab exercise is also provided for use in the classroom. The lab document includes an overview, objectives, list of materials, explanation of methods, and questions for students to answer during the lab. A list of âÂÂExponential Word Problemsâ is also provided here for use in the classroom.

Boyd, Jennifer; Cannon, Melissa; Khouri, Khalid; Shaffer, Larry

2008-08-08

200

Microspectroscopy At Beamline 73 MAX-lab  

SciTech Connect

Presentation of some projects at the infrared microspectroscopy experimental station at beamline 73 MAX-lab. Among the subjects are found identification of organic residues in fossil material and examination of the chemistry in an old oak wood wreck.

Engdahl, Anders [MAX-lab, University of Lund, P.O. Box 118, 22100 Lund Sweden (Sweden)

2010-02-03

201

Scientific Method Lab Using Bubble Gum  

NSDL National Science Digital Library

This activity is a lab investigation where students gather data which compares 2 types of bubble gum, while learning to use the scientific method to collect qualitative and quantitative data using SI units.

202

Thomas Jefferson National Accelerator Facility (Jefferson Lab)  

NSDL National Science Digital Library

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) is a user facility for scientists worldwide. Its primary mission is to conduct basic research of the atomâs nucleus at the quark level.

2003-11-10

203

Card Lab: A Population Genetics Simulation Exercise.  

ERIC Educational Resources Information Center

Explains the use of a card lab to demonstrate how a population bottleneck impacts genetic diversity and the survival of a population. Uses a standard deck of playing cards to show how age structure can magnify bottleneck effects. (DDR)

Easton, Christopher M.

1997-01-01

204

Frederick National Lab: Careers and Training  

Cancer.gov

The Frederick National Lab employs about 1,900 contractor employees and 800 government employees who work together to advance cancer research and develop new technologies for preventing, diagnosing, and treating cancer and AIDS.

205

ChemLab - Instruments and Techniques  

NSDL National Science Digital Library

This website contains information on using and caring for common chemistry lab instruments as well as information on performing common laboratory techniques. Included is information on an analytical balance, pH meter, spectrometer, calorimetry, centrifugation, titration, and vacuum filtration.

2011-06-22

206

Hybrid Electric Vehicle (HEV) Automotive Labs  

NSDL National Science Digital Library

The following labs were developed by Lewis and Clark Community College to modify National Automotive Technicians Education Foundation (NATEF) certified courses with HEV technologies. This project was funded by a seed grant from the CAAT.

College, Lewis A.

207

Mechatronics Lab Activities and Other Resources  

NSDL National Science Digital Library

This is the companion website for the textbook "Introduction to Mechatronics and Measurement Systems" by David G. Alciatore and Michael B. Histand. It includes a list of lab activities and video demonstrations, as well as other resources.

Alciatore, David G.; Histand, Michael B.

2012-07-20

208

Bioenergy Lab Manual: Introduction to Biodiesel Fuel  

NSDL National Science Digital Library

The Advanced Technology Environmental and Energy Center (ATEEC) provides this lab manual on biodiesel fuel. Contents of the lab manual include titration of used oil feedstocks, neutralization and washing of biodiesel and several tests like the carbon residue test, cloud point test and copper corrosion test. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

Morschauser, P.; Walz, K.

2007-07-01

209

Information Assurance Security and Lab Series  

NSDL National Science Digital Library

The Center for Systems Security and Information Assurance (CSSIA) provides this 122 page pdf as part of a series of lab exercises intended to support courseware for CompTIA Security certification. After completing this lab, "students will learn the process of capturing network traffic using three different methods, the tcpdump command, Wireshark, and Network Minor." Users are encouraged to visit the center's site and create a free login to view these and other learning resources.

2012-11-05

210

Renewable Energy Living Lab: Energy Experts  

NSDL National Science Digital Library

Students use real-world data to evaluate various renewable energy sources and the feasibility of implementing these sources. Working in small groups, students use data from the Renewable Energy Living Lab to describe and understand the way the world works. The data is obtained through observation and experimentation. Using the living lab gives students and teachers the opportunity to practice analyzing data to solve problems or answer questions, in much the same way that scientists and engineers do every day.

Civil And Environmental Engineering Department

211

A Virtual Lab in Research Methods  

Microsoft Academic Search

A hands-on lab for a lower division research methods course used an online format with Web page, Web forms, an e-mail listproc, and chat room. The virtual section received a higher rating for overall value than did the in-person labs. Students liked its conve-nience and flexibility. There were no significant differences in ex-amination performance between students who took the online

Barbara A. Sommer; Robert Sommer

2003-01-01

212

Chisholm Lab at MIT: Resources on Phytoplankton  

NSDL National Science Digital Library

The Chisholm Lab at MIT has done groundbreaking work on the role of phytoplankton in ocean systems, including the discovery of a new species of phytoplankton, Prochlorococcus, found to be an abundant marine photosynthetic bacterium. The resources provided at the Lab's site include basic and advanced information on phytoplankton, laboratory protocols, a bibliography of additional resources, and links to a variety of sources in oceanography, marine biology, genomics, and other subjects.

2007-04-06

213

Characterization of IR cameras in student labs  

NASA Astrophysics Data System (ADS)

The content of a student lab course is described which deals with characterization of the most important parameters governing the performance of infrared cameras. In detail, the parameters describing the temperature resolution, spatial resolution and time resolution of commercial IR cameras are analysed using simple lab experiments. Understanding the respective performance of the system is the prerequisite for applying infrared thermal imaging to quantitative measurements in physics and technology.

Vollmer, M.; Möllmann, K.-P.

2013-11-01

214

Mississippi State Physics Labs: Scientific Inquiry  

NSDL National Science Digital Library

This item is an introductory undergraduate lab designed to promote understanding of the scientific method. Using a simple pendulum apparatus, students design an experiment to determine factors affecting the period of the pendulum. Tasks include hypothesis statement, identification of independent/dependent variables, data collection, graphing data, and analysis of results. This item is part of a larger collection of introductory physics labs by the authors.

Ferguson, Joe; Denson, Jack

2008-09-08

215

Measurement system for high-sensitivity LIBS analysis using ICCD camera in LabVIEW environment  

NASA Astrophysics Data System (ADS)

A measurement system based on ultrafast (up to 10 ns time resolution) intensified CCD detector ``Nanogate-2V'' (Nanoscan, Russia) was developed for high-sensitivity analysis by Laser-Induced Breakdown Spectrometry (LIBS). LabVIEW environment provided a high level of compatibility with variety of electronic instruments and an easy development of user interface, while Visual Studio environment was used for creation of LabVIEW compatible dll library with the use of ``Nanogate-2V'' SDK. The program for camera management and laser-induced plasma spectra registration was created with the use of Call Library Node in LabVIEW. An algorithm of integration of the second device ADC ``PCI-9812'' (ADLINK) to the measurement system was proposed and successfully implemented. This allowed simultaneous registration of emission and acoustic signals under laser ablation. The measured resolving power of spectrometer-ICCD system was equal to 12000 at 632 nm. An electron density of laser plasma was estimated with the use of H-? Balmer line. Steel spectra obtained at different delays were used for selection of the optimal conditions for manganese analytical signal registration. The feature of accumulation of spectra from several laser pulses was shown. The accumulation allowed reliable observation of silver signal at 328.07 nm in the LIBS spectra of soil (CAg = 4.5 ppm). Finally, the correlation between acoustic and emission signals of plasma was found. Thus, technical possibilities of the developed LIBS system were demonstrated both for plasma diagnostics and analytical measurements.

Zaytsev, S. M.; Popov, A. M.; Zorov, N. B.; Labutin, T. A.

2014-06-01

216

Visual programming labs for introducing computer science concepts  

Microsoft Academic Search

The authors describe a series of visual programming labs for introducing computer science (CS) topics in undergraduate courses. These visual labs focus on the learning of CS concepts, not coding. They are intended to bridge the gap between lectures and programming projects. The visual labs are developed using a visual programming toolkit. They employ a build-and-test paradigm. Each lab permits

Marian G. Williams; W. Ledder; J. Nicholas Buehler; J. Canning

1993-01-01

217

Good, Messy, Frothing Fun. Teaching Problem-Based Lab Safety  

ERIC Educational Resources Information Center

Lab safety is a critical component of any science class, but it is certainly not the most popular. This is especially true for younger students who are new to lab-based science classes. Educators must teach them about the dangers of unsafe lab behavior without scaring them away from the lab entirely or boring them to the point that they don't…

Turner, Bethany; Shamsid-Deen, Katherine Khalilah

2005-01-01

218

RoboLab and virtual environments  

NASA Technical Reports Server (NTRS)

A useful adjunct to the manned space station would be a self-contained free-flying laboratory (RoboLab). This laboratory would have a robot operated under telepresence from the space station or ground. Long duration experiments aboard RoboLab could be performed by astronauts or scientists using telepresence to operate equipment and perform experiments. Operating the lab by telepresence would eliminate the need for life support such as food, water and air. The robot would be capable of motion in three dimensions, have binocular vision TV cameras, and two arms with manipulators to simulate hands. The robot would move along a two-dimensional grid and have a rotating, telescoping periscope section for extension in the third dimension. The remote operator would wear a virtual reality type headset to allow the superposition of computer displays over the real-time video of the lab. The operators would wear exoskeleton type arms to facilitate the movement of objects and equipment operation. The combination of video displays, motion, and the exoskeleton arms would provide a high degree of telepresence, especially for novice users such as scientists doing short-term experiments. The RoboLab could be resupplied and samples removed on other space shuttle flights. A self-contained RoboLab module would be designed to fit within the cargo bay of the space shuttle. Different modules could be designed for specific applications, i.e., crystal-growing, medicine, life sciences, chemistry, etc. This paper describes a RoboLab simulation using virtual reality (VR). VR provides an ideal simulation of telepresence before the actual robot and laboratory modules are constructed. The easy simulation of different telepresence designs will produce a highly optimum design before construction rather than the more expensive and time consuming hardware changes afterwards.

Giarratano, Joseph C.

1994-01-01

219

Do Online Labs Work? An Assessment of an Online Lab on Cell Division  

ERIC Educational Resources Information Center

Some studies show students successfully learning science through online courses. This study compared students doing an online and in-class lab exercise on cell division. Online students performed slightly but significantly better on a follow-up content quiz, however, about half those expressed a strong preference for in-class lab work.

Gilman, Sharon L.

2006-01-01

220

Biotechnology Virtual Labs - Integrating Wet-lab Techniques and Theoretical Learning for Enhanced Learning at Universities  

Microsoft Academic Search

For enhanced education at the level of University courses such as those in biology or biotechnology, one of the key elements is the need of time and expertise to allow the student to familiarize laboratory techniques in par with regular theory. The Sakshat Amrita virtual biotechnology lab project focusing on virtualizing wet-lab techniques and integrating the learning experience has added

Shyam Diwakar; Krishnashree Achuthan; Prema Nedungadi

2010-01-01

221

The Microelectronics WebLab 6.0 - An Implementation Using Web Services and the iLab Shared Architecture  

Microsoft Academic Search

We have developed and deployed a new version of the MIT Microelectronics WebLab that has been constructed around the iLab Shared Architecture. The MIT Microelectronics WebLab (or simply WebLab) is an online semiconductor characterization laboratory. While WebLab is primarily of interest in microelectronics education, it also represents a testbed for new pedagogical and technological concepts associated with online laboratories. Our

J. Hardison; D. Zych; J. A. del Alamo; V. J. Harward; S. R. Lerman; S. M. Wang; K. Yehia; C. Varadharajan

2005-01-01

222

Learner performance and attitudes in traditional versus simulated lab experiences  

NASA Astrophysics Data System (ADS)

The expository laboratory, a type of physical laboratory that has prescribed outcomes, was initially designed to address learning environments and laboratory environments of the 20th century. Evidence suggests that it has lost its instructional value. Emerging technologies such as simulations have a multitude of instructional benefits which can serve as robust replacements for the expository lab. There is evidence that the expository lab is being redefined and may need to be redesigned for the online world. These changes have not been realized, however, due to the current accreditation process which does not recognize the simulated lab as a legitimate alternative to expository labs. This study investigated whether simulated laboratories can achieve the goals of contemporary lab instruction as successfully as the expository lab paradigm. This study addressed the differences and similarities in student attitudes toward using a simulated lab and an expository lab. The methodology used in this study was experimental and quantitative in nature. Two experiments were carried out, each of which comprised the completion of a lab activity by participants who were assigned to a control group (expository lab) or an experimental group (simulated lab). This study found that there were significant differences between the assessment means of the simulated lab groups and the expository lab groups. The assessment means for the simulated lab groups were significantly higher than the assessment means of the expository lab groups. In terms of learner attitude, it was found that simulated labs were perceived to be more open-ended, easier to use, and easier to generate usable data, than expository labs. Moreover, students preferred using simulated labs over expository labs, and the time to complete simulated lab activities was significantly less than the time to complete expository lab activities. This study showed that the simulated lab can serve as a legitimate alternative to the expository, "hands-on" lab which is frequently used in science courses. The current accreditation practice of requiring online science courses to have "hands-on" labs should be reevaluated to include simulated labs as alternatives. Simulated labs should be considered as equal alternatives, not inferior alternatives, as is currently the case.

Pyatt, Kevin A.

223

University of Victoria: The Whale Research Lab  

NSDL National Science Digital Library

This website presents the Whale Research Lab at the University of Victoria in British Columbia, Canada. The Whale Lab -- consisting of a small group of faculty, graduate students, and associates -- focuses on conservation-related marine mammal research. The site features research project profiles for M.Sc. and PhD students, and includes a short list of theses and dissertations. Dr. Ellen Hines" dissertation -- titled Conservation of the Dugong (_Dugong dugon_) along the Andaman Coast of Thailand: An example of the integration of the Conservation Biology in Endangered Species Research -- is available in multiple PDF files. The website includes a list of faculty publications as well. The Whale Lab site also links to information about the Marine Research Intern Program with the Society for Ecological & Coastal Research. This site is also reviewed in the June 25, 2004 _NSDL Life Sciences Report_.

224

The Problem with Organic Chemistry Labs  

NASA Astrophysics Data System (ADS)

Despite the educational limitations of cookbook verification experiments, the majority of undergraduate organic chemistry laboratores are still based on them. What is so often missing in these labs is the opportunity for students to interpret their experimental results in the context of a real problem. We need to recast our projects and experiments so that questions serve as the basis for lab investigations. This question-driven, guided-inquiry approach to laboratory teaching will allow students to participate effectively in the process of experimental organic chemistry.

Mohrig, Jerry R.

2004-08-01

225

Lithium plasma emitter for collisionless magnetized plasma experiment.  

PubMed

This paper presents a newly developed lithium plasma emitter, which can provide quiescent and low-temperature collisionless conditions for magnetized plasma experiments. This plasma emitter generates thermal emissions of lithium ions and electrons to produce a lithium plasma. Lithium type beta-eucryptite and lanthanum-hexaboride (LaB(6)) powders were mixed and directly heated with a tungsten heater to synthesize ion and electron emissions. As a result, a plasma with a diameter of ~15 cm was obtained in a magnetic mirror configuration. The typical range of electron density was 10(12)-10(13) m(-3) and that of electron temperature was 0.1-0.8 eV with the emitter operation temperature of about 1500 K. The amplitude fluctuations for the plasma density were lower than 1%. PMID:21974582

Kawamori, Eiichirou; Lee, Jyun-Yi; Huang, Yi-Jue; Syugu, Wun-Jheng; Song, Sung-Xuang; Hsieh, Tung-Yuan; Cheng, C Z

2011-09-01

226

Lithium plasma emitter for collisionless magnetized plasma experiment  

NASA Astrophysics Data System (ADS)

This paper presents a newly developed lithium plasma emitter, which can provide quiescent and low-temperature collisionless conditions for magnetized plasma experiments. This plasma emitter generates thermal emissions of lithium ions and electrons to produce a lithium plasma. Lithium type beta-eucryptite and lanthanum-hexaboride (LaB6) powders were mixed and directly heated with a tungsten heater to synthesize ion and electron emissions. As a result, a plasma with a diameter of ~15 cm was obtained in a magnetic mirror configuration. The typical range of electron density was 1012-1013 m-3 and that of electron temperature was 0.1-0.8 eV with the emitter operation temperature of about 1500 K. The amplitude fluctuations for the plasma density were lower than 1%.

Kawamori, Eiichirou; Lee, Jyun-Yi; Huang, Yi-Jue; Syugu, Wun-Jheng; Song, Sung-Xuang; Hsieh, Tung-Yuan; Cheng, C. Z.

2011-09-01

227

Experimental deduction of isentropic exponent for ion and electron in high density argon plasma  

Microsoft Academic Search

Summary form only given. The isentropic exponent for plasma was deduced from measurements of electron temperature, Te, and ion temperature, Ti, in terms of plasma density, np, with the assumptions of linear characteristics of plasma parameters on discharge parameter in LaB6 dc plasma. The isentropic exponent for electron, gammae, is estimated by 1.06 with isentropic relation (P = Cngamma), and

H.-J. Woo; K.-S. Chung; T. Lho; M.-J. Lee

2009-01-01

228

Ejs Intro 2DMotionLab Model  

NSDL National Science Digital Library

The Introductory Physics 2D (Projectile) Motion Lab program asks students to develop a model for a ball with projectile motion. It is distributed as a ready-to-run (compiled) Java archive. Double-clicking the ejs_intro_2DMotionLab.jar file will run the program if Java is installed. In order to modify this simulation (and see how it is designed), if you have Ejs installed, you can right-click within the simulation window and select Open Ejs Model from the pop-up menu. Information about Ejs (Easy Java Simulations) is available at: http://www.um.es/fem/Ejs/. The Intro 2D Motion Lab program is one of a suite of Easy Java Simulations (Ejs) models used in Introductory Physics Labs. Ejs, a part of the Open Source Physics Project, and is designed to make it easier to access, modify and generate computer models. Additional models can be found by searching ComPADRE for Ejs.

Cox, Anne; Christian, Wolfgang; Belloni, Mario

2008-05-30

229

The Problem with Organic Chemistry Labs  

Microsoft Academic Search

Despite the educational limitations of cookbook verification experiments, the majority of undergraduate organic chemistry laboratores are still based on them. What is so often missing in these labs is the opportunity for students to interpret their experimental results in the context of a real problem. We need to recast our projects and experiments so that questions serve as the basis

Jerry R. Mohrig

2004-01-01

230

Berkeley Lab's Cool Your School Program  

ScienceCinema

Cool Your School is a series of 6th-grade, classroom-based, science activities rooted in Berkeley Lab's cool-surface and cool materials research and aligned with California science content standards. The activities are designed to build knowledge, stimulate curiosity, and carry the conversation about human-induced climate change, and what can be done about it, into the community.

231

Berkeley Lab's Cool Your School Program  

ScienceCinema

Cool Your School is a series of 6th-grade, classroom-based, science activities rooted in Berkeley Lab's cool-surface and cool materials research and aligned with California science content standards. The activities are designed to build knowledge, stimulate curiosity, and carry the conversation about human-induced climate change, and what can be done about it, into the community.

Ivan Berry

2013-06-24

232

Berkeley Lab's Cool Your School Program  

SciTech Connect

Cool Your School is a series of 6th-grade, classroom-based, science activities rooted in Berkeley Lab's cool-surface and cool materials research and aligned with California science content standards. The activities are designed to build knowledge, stimulate curiosity, and carry the conversation about human-induced climate change, and what can be done about it, into the community.

Ivan Berry

2012-07-30

233

Design labs: Students' expectations and reality  

Microsoft Academic Search

In a study reported in PERC 2004 the authors described how introductory physics labs in which students design their own experiments help them develop scientific abilities. These include the ability to design an experiment to solve a problem, to collect and analyze data and to communicate the details of the experimental procedure. The goal of the present study is to

Eugenia Etkina; Sahana Murthy

2006-01-01

234

Designing Inquiry-Oriented Science Lab Activities  

ERIC Educational Resources Information Center

Mr. Smith and Ms. D'Amico are two veteran science teachers in a well-performing school district. Both teachers use weekly lab exercises and experiments as formative assessments. In their middle school classrooms, children are engaged and eager to learn. As students walk into Mr. Smith's classroom, a prescribed, step-by-step procedure of the day's…

Longo, Christopher M.

2011-01-01

235

Renewable Energy Living Lab: Energy Priorities  

NSDL National Science Digital Library

Students analyze real-world data for five types of renewable energy, as found on the online Renewable Energy Living Lab. They identify the best and worst locations for production of each form of renewable energy, and then make recommendations for which type that state should pursue.

Civil And Environmental Engineering Department

236

Examining Computer Configurations: Mini-Labs.  

ERIC Educational Resources Information Center

Describes various configurations of computer equipment that can be used in public schools. Labs with multiple computers, one computer in a classroom, and minilabs (with three or four computers on a mobile cart) are compared for cost effectiveness, cooperative learning possibilities, instructional effectiveness, usage, security, and flexibility.…

Barba, Robertta

1990-01-01

237

Music Learning in Your School Computer Lab.  

ERIC Educational Resources Information Center

States that a growing number of schools are installing general computer labs equipped to use notation, accompaniment, and sequencing software independent of MIDI keyboards. Discusses (1) how to configure the software without MIDI keyboards or external sound modules, (2) using the actual MIDI software, (3) inexpensive enhancements, and (4) the…

Reese, Sam

1998-01-01

238

How Do New Teachers Choose New Labs?  

ERIC Educational Resources Information Center

Forty-eight new secondary science teachers participated in a study that required a listing, discussion, and application of criteria to rank three chemistry laboratory procedures. The three similar lab procedures involved synthesis of a compound from its elements. The top criteria noted by teachers focused on procedural issues (i.e., timeliness,…

DeMeo, Stephen

2007-01-01

239

Air Contamination Control in Radiochemistry Labs  

Microsoft Academic Search

\\u000a The topics of this lecture will include: System to monitor air contamination in Radiochemistry Labs Environmental safety:\\u000a modelling of dispersion in the atmosphere of contaminated gasses and population dose estimation Safety and shielding of Hot\\u000a Cells Internal contamination risk to staff during synthesis Modelling for dose determination from urine sample measurements

Riccardo Calandrino

240

An Innovative Course in Lab Safety.  

ERIC Educational Resources Information Center

Describes a course designed to provide secondary school science teachers with the background necessary to implement an effective safety program for their science labs. Lectures, demonstrations, group discussions, slides, films, videotapes, and guest speakers were utilized in the two-credit hour, summer course. Evaluations indicated course…

Nagel, Miriam C.

1982-01-01

241

Life Lab Computer Support System's Manual.  

ERIC Educational Resources Information Center

Step-by-step procedures for utilizing the computer support system of Miami-Dade Community College's Life Lab program are described for the following categories: (1) Registration--Student's Lists and Labels, including three separate computer programs for current listings, next semester listings, and grade listings; (2) Competence and Resource…

Lippman, Beatrice D.; Walfish, Stephen

242

Favorite Labs from Outstanding Teachers. Monograph VII.  

ERIC Educational Resources Information Center

This monograph is the first attempt to collect and share some of the teaching techniques, activities, and ideas of former recipients of the Outstanding Biology Teacher Award. The lessons are organized into topical themes to facilitate their incorporation into standard curriculum. The manual is divided into two main sections, "Labs" and "Ideas."…

Sheldon, Daniel S., Ed.; Penick, John E., Ed.

243

Design Lab. USMES "How To" Series.  

ERIC Educational Resources Information Center

The major emphasis in all Unified Sciences and Mathematics for Elementary Schools (USMES) units is on open-ended, long-range investigations of real problems. Since children often design and build things in USMES, 26 "Design Lab" cards provide information on the safe use and simple maintenance of tools. Each card has a large photograph of the tool…

Donahoe, Charles; And Others

244

Gapminder: An AP Human Geography Lab Assignment  

ERIC Educational Resources Information Center

This lesson is designed as a lab assignment for Advanced Placement (AP) Human Geography students wherein they use the popular Gapminder web site to compare levels of development in countries from different world regions. For this lesson, it is important for the teacher to practice with Gapminder before giving the assignment to students. (Contains…

Keller, Kenneth H.

2012-01-01

245

Encouraging Creativity in the Science Lab  

NSDL National Science Digital Library

Although science is a creative endeavor (NRC 1996, p. 46), many students think they are not encouraged--or even allowed--to be creative in the laboratory. When students think there is only one correct way to do a lab, their creativity is inhibited. Park and

Eyster, Linda

2010-09-01

246

Special Report: Hazardous Wastes in Academic Labs.  

ERIC Educational Resources Information Center

Topics and issues related to toxic wastes in academic laboratories are addressed, pointing out that colleges/universities are making efforts to dispose of hazardous wastes safely to comply with tougher federal regulations. University sites on the Environmental Protection Agency Superfund National Priorities List, costs, and use of lab packs are…

Sanders, Howard J.

1986-01-01

247

"Probeware" on Increase in Schools' Science Labs  

ERIC Educational Resources Information Center

Though the term, "probeware" may not be a household word, it has grown more familiar to science educators over the past decade, as a new generation of high-tech instruments for collecting and analyzing data from the physical world have been introduced into school science labs. Today, those tools include digital scientific probes or sensors that…

Trotter, Andrew

2008-01-01

248

Archive: The Virtual Lab December 2, 2010  

NSDL National Science Digital Library

This Web Seminar took place on October 13, 2010, from 8:00 p.m. to 9:30 p.m. Eastern Time. Presenting was Kristy Hill, an education specialist at Marshall Space Flight Center. In this Seminar, Ms. Hill focused the discussion on The Virtual Lab, a software

1900-01-01

249

The Hidden Costs of Wireless Computer Labs  

ERIC Educational Resources Information Center

Various elementary schools and middle schools across the U.S. have purchased one or more mobile laboratories. Although the wireless labs have provided more classroom computing, teachers and technology aides still have mixed views about their cost-benefit ratio. This is because the proliferation of viruses and spyware has dramatically increased…

Daly, Una

2005-01-01

250

Ames Lab 101: Single Crystal Growth  

SciTech Connect

Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.

Schlagel, Deborah

2013-09-27

251

A Natural Selection Lab for Environmental Biology.  

ERIC Educational Resources Information Center

Presents a lab that investigates the evolution of genetic resistance, the importance of genetic variability in the process of adaptation, and the ecological and economic consequences of pesticide use. Allows students to investigate the relationship between population size, genetic variability, and adaptability. Appendices contain the genetic card…

Fiero, Brad; Mackie, Steve

1997-01-01

252

Every Day Is National Lab Day  

ERIC Educational Resources Information Center

President Barack Obama recently issued a call for increased hands-on learning in U.S. schools in an address at the National Academy of Sciences. Obama concluded that the future of the United States depends on one's ability to encourage young people to "create, and build, and invent." In this article, the author discusses National Lab Day (NLD)…

Bull, Glen

2010-01-01

253

Ferroelectric Materials: Ferroelectric Kinetics Computer Lab  

NSDL National Science Digital Library

The discussion on phase field modeling and conserved order-disorder transformations is extended to phase transformations for non-conserved order parameters. As an enabling application, a one-parameter two-dimensional ferroelectric material is described. The Allen-Cahn equation is presented. This lab is intended to complement the "Ferroelectric Materials: An Introduction" lecture.

Garcă­a, R. E.

2008-08-25

254

UVA Virtual Lab: Van de Graaff Generators  

NSDL National Science Digital Library

These series of pages provide a detailed tutorial on the principals behind the operation of a Van de Graaf generator through short animations. It is part of the University of Virginia Virtual Lab collection that covers the topics of electricity and magnetism, nanoscience, and microelectronics. This project is supported by grants from the National Science Foundation, the University of Virginia, IBM, and Discreet Corporation.

Bean, John

2010-12-23

255

From Computer Lab to Technology Class.  

ERIC Educational Resources Information Center

Discussion of integrating technology into elementary school classrooms focuses on teacher training that is based on a three-year plan developed at an elementary school in Marathon, New York. Describes the role of a technology teacher who facilitates technology integration by running the computer lab, offering workshops, and developing inservice…

Sherwood, Sandra

1999-01-01

256

Lab-on a-Chip  

NASA Technical Reports Server (NTRS)

Helen Cole, the project manager for the Lab-on-a-Chip Applications Development program, and Lisa Monaco, the project scientist for the program, insert a lab on a chip into the Caliper 42 which is specialized equipment that controls processes on commercial chips to support development of lab-on-a-chip applications. The system has special microscopes and imaging systems, so scientists can process and study different types of fluid, chemical, and medical tests conducted on chips. For example, researchers have examined fluorescent bacteria as it flows through the chips' fluid channels or microfluidic capillaries. Researchers at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama, have been studying how the lab-on-a-chip technology can be used for microbial detection, water quality monitoring, and detecting biosignatures of past or present life on Mars. The Marshall Center team is also collaborating with scientists at other NASA centers and at universities to develop custom chip designs for not only space applications, but for many Earth applications, such as for detecting deadly microbes in heating and air systems. (NASA/MSFC/D.Stoffer)

2003-01-01

257

Getting a Feel for Soils - Lab  

NSDL National Science Digital Library

This is a lab activity in which students start to put together what they have learned as separate soil attributes in the context of the world they know. This activity involves hypothesizing geologic and soils relationships using state and world maps, conducting texture-by-feel tests, reflecting on the definition of 'soil', and evaluating soil granulometric methods.

Fadem, Cynthia

258

Ames Lab 101: Single Crystal Growth  

ScienceCinema

Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.

Schlagel, Deborah

2014-06-04

259

Realistic BGP traffic for test labs  

Microsoft Academic Search

This paper examines the possibility of generating realistic routing tables of arbitrary size along with realistic BGP updates of arbitrary frequencies via an automated tool deployable in a small-scale test lab. Such a tool provides the necessary foundations to study such questions as: the limits of BGP scalability, the reasons behind routing instability, and the extent to which routing instability

Olaf Maennel; Anja Feldmann

2002-01-01

260

Power engineering lab: electricity market simulator  

Microsoft Academic Search

This paper presents a successful lab experience to teach pool-based electricity markets to power engineering students. Students are arranged in groups and assigned, at random, a set of generators. They play the role of power producers and compete against each other with the target of maximizing their own profits. The instructor plays the role of the market operator. A market

J. Contreras; A. J. Conejo; S. de la Torre; M. G. Munoz

2002-01-01

261

A Measured Approach to Microcomputer Lab Design.  

ERIC Educational Resources Information Center

Explores design considerations for a functional microcomputer lab, including ergonomics and furnishings; access for the disabled; the use of other media; hardware security; and software security, including virus protection. A summary paragraph comments on the role of planning and forecasting. A bibliography of eight titles for further reading is…

Duggan, Brian

1994-01-01

262

The Hall D Detector at Jefferson Lab  

SciTech Connect

The Hall D experiment at Jefferson Lab is part of the proposed CEBAF upgrade to 12 GeV beam energy. The Experiment will study gluonic excitations of mesons in the 1.5 to 2.5 GeV/c{sup 2} mass region using an 8 to 9 GeV beam of linearly polarized photons.

Curtis A. Meyer (Hall D Collaboration)

2000-12-12

263

Magnetized Plasma Experiments Using Thermionic- Thermoelectronic Plasma Emitter  

NASA Astrophysics Data System (ADS)

We are developing a magnetic mirror device, which is the first magnetized plasma device in Taiwan, to explore basic plasma sciences relevant to fusion, space and astrophysical plasmas. Our research subjects include electromagnetically induced transparency (EIT), Alfven wave physics, and plasma turbulence. A large diameter (> 200 mm) plasma emitter1, which utilizes thermionic- thermoelectronic emission from a mixture of LaB6 (Lanthanum-hexaboride) and beta-eucryptite (lithium type aluminosylicate) powders, is employed as a plasma source because of its production ability of fully ionized plasma and controllability of plasma emission rate. The plasma emitter has been installed recently and investigation of its characteristics will be started. The employment of beta-eucryptite in plasma emitter is the first experimental test because such investigation of beta-eucryptite has previously been used only for Li+-ion source2. Our plan for magnetized plasma experiments and results of the plasma emitter investigation will be presented. 1. K. Saeki, S. Iizuka, N. Sato, and Y. Hatta, Appl. Phys. Lett., 37, 1980, pp. 37-38. 2. M. Ueda, R. R. Silva, R. M. Oliveira, H. Iguchi, J. Fujita and K. Kadota, J. Phys. D: Appl. Phys. 30 1997, pp. 2711--2716.

Kawamori, Eiichirou; Cheng, C. Z.; Fujikawa, Nobuko; Lee, Jyun-Yi; Peng, Albert

2008-11-01

264

Doing Science or Doing a Lab? Engaging Students with Scientific Reasoning during Physics Lab Experiments  

NSDL National Science Digital Library

Undergraduate teaching labs often include expectations for students to use various sensemaking and reasoning behaviours when conducting an experiment. These expectations, however, are often unsupported in the explicit lab structure, and, as such, students develop distinctions between behaviours associated with âdoing a labâ or âdoing science.â This study examines if and how students engage in reflection and evaluation of results during an experiment that involves two sources of systematic error. While many students reflected on their results and identified the source of the larger systematic error, very few did so for the smaller one. In fact, for the latter case, many students reported significantly inflated uncertainties, effectively hiding the systematic error altogether. We use these results, in-class observations, and post-lab interviews to describe how and why students failed to demonstrate authentic scientific inquiry behaviours during the lab.

Holmes, N. G.; Bonn, Doug A.

2014-01-31

265

Computer Labs and Media Centers: A Natural Fit.  

ERIC Educational Resources Information Center

Discusses how to integrate a computer lab with a school library media center. Topics include planning; management issues; printing guidelines; scheduling; instruction and integration; staff development; supervision while classes are in the computer lab; and technical issues. (LRW)

Anderson, Mary Alice

2000-01-01

266

CELSTEC Learning Labs: Mobile App Development for Education and Training  

Microsoft Academic Search

Specht, M. (2011). CELSTEC Learning Labs: Mobile App Development for Education and Training. Presentation given in Workshop at CELSTEC Learning Lab for Bluetea. February, 21, 2011, Heerlen, The Netherlands.

Marcus Specht

2011-01-01

267

Skill-Building Simulations in Cardiology: The HeartLab and EkgLab Experience  

PubMed Central

HeartLab and EkgLab are two simulation-based programs designed to teach medical students the essentials of the auscultatory cardiac exam and of electrocardiogram interpretation, respectively. The issues considered throughout the development of these projects, namely implementation language selection, program architecture, simulation design, patient models, and the approach to validation, are applicable to the design of any simulation-based system.

Bergeron, Bryan P.; Greenes, Robert A.

1987-01-01

268

Instrumentation and Equipment for Three Independent Research Labs  

Microsoft Academic Search

Completed in 2011, Albright's new Science Center includes three independent student and faculty research labs in Biology, Chemistry\\/Biochemistry, and Physics (separate from teaching labs). Providing independent research facilities, they eliminate disruptions in classrooms and teaching labs, encourage and accommodate increased student interest, and stimulate advanced research. The DOE grant of $369,943 enabled Albright to equip these advanced labs for 21st

Darlene Roth

2012-01-01

269

Student Plagiarism and Faculty Responsibility in Undergraduate Engineering Labs  

ERIC Educational Resources Information Center

In undergraduate engineering labs, lab reports are routinely copied. By ignoring this form of plagiarism, teaching assistants and lab technicians neglect their role responsibility. By designing courses that facilitate it, however inadvertently, professors neglect their causal responsibility. Using the case of one university, we show via interviews…

Parameswaran, Ashvin; Devi, Poornima

2006-01-01

270

Effectiveness of a Lab Manual Delivered on CD-ROM  

NSDL National Science Digital Library

Although electronic instructional media are becoming increasingly prevalent in science classrooms, their worth remains unproven. We assessed student perceptions and performance using CD-ROM delivery of lab materials and discovered numerous learning barriers that produced lower lab grades for students using a CD-ROM lab manual in comparison to a print version.

Ketter, Catherine A.; Pereira, Monica; Brickman, Peggy

2005-11-01

271

A One-Hour Practical Lab Exam for Organic Chemistry  

ERIC Educational Resources Information Center

A lab practical exam for second-year organic chemistry is presented that tests multiple lab skills and theory that the students have acquired directly from laboratory experiences. This exam motivates students to learn lab skills and is an effective end-of-term test for many of those skills. (Contains 2 figures.)

Neeland, Edward G.

2007-01-01

272

Visick Lab: Home of the Vibrio-Euprymna Symbiosis  

NSDL National Science Digital Library

This website features general information about the lab of Karen Visick, which studies the genes needed to establish an interaction between the small Hawaiian squid Euprymna scolopes and its luminescent symbiont, the marine bacterium Vibrio fischeri. It features links to more information about current research in the Visick lab, lab members and events, and the summer research program and microbiology department at Loyola University.

Visick, Karen; University, Loyola

273

Revising Geology Labs To Explicitly Use the Scientific Method.  

ERIC Educational Resources Information Center

Proposes that content- or skill-based labs can be revised to explicitly involve the scientific method by asking students to propose hypotheses before making observations. Students' self-assessment showed they felt that they learned a great deal from this style of labs and found the labs to be fun; however, students felt that they learned little…

Hannula, Kimberly A.

2003-01-01

274

Approaches to computer lab management: lockdown vs. freedom  

Microsoft Academic Search

Basic approaches to computer lab management range along a spectrum from total lockdown of lab computers to total freedom. Total lockdown, which can be implemented with system permissions and policies as well as software such as FoolProof and OnGuard, usually means that the computers' storage devices, especially the hard drives, are restricted, preventing write access by lab users (temporary drive

Christopher Jones; Yasemin Tunc; Deborah Cherry

2000-01-01

275

Constructing the Components of a Lab Report Using Peer Review  

ERIC Educational Resources Information Center

A protocol that emphasizes lab report writing using a piecemeal approach coupled with peer review is described. As the lab course progresses, the focus of the report writing changes sequentially through the abstract and introduction, the discussion, and the procedure. Two styles of lab programs are presented. One style rotates the students through…

Berry, David E.; Fawkes, Kelli L.

2010-01-01

276

Creating Multimedia/MBL Labs for Introductory General Physics Courses  

NSDL National Science Digital Library

This article describes the features of and process involved in creating a new set of labs at the University of Nebraska-Lincoln. The labs are designed for a two-semester introductory algebra-based physics course in the âlearning cycleâ format. The experiences of six graduate students who developed, tested, evaluated, and rewrote lab lessons is also described.

Patterson, Evelyn; Fuller, Robert G.

2006-06-19

277

Trajectory of the Proposed Strato-Lab VII Balloon.  

National Technical Information Service (NTIS)

This report concerns a study which uses data from the STRATO-LAB V balloon flight and a computer program to describe a vertical flight trajectory for the proposed STRATO-LAB VII balloon. The calculation of the proposed STRATO-LAB VII flight was performed ...

K. Tsuji J. L. Karney

1965-01-01

278

Ion source with LaB6 hollow cathode for a diagnostic neutral beam injector  

NASA Astrophysics Data System (ADS)

In this article ion source capable of providing 8 A, 54 keV proton beam in maximum 3 s pulses is described. A general description of the diagnostic injector based on this ion source is also given. The ion beam is extracted and accelerated by a four-electrode multiaperture ion-optical system. In the ion source, hydrogen (deuterium) plasma is generated by an arc discharge plasma box with a hot LaB6 cathode. The plasma jet diverging from a small anode orifice enters the plasma expansion volume with a peripheral multipole magnetic field and after partial reflection from this field forms a uniform plasma emitter of 160 mm in diameter in the plasma grid plane. The plasma box operates with an arc current of 350-700 A, providing more than 75% of full energy specie in the extracted ion beam. The ion beam is subsequently neutralized in a hydrogen target with ~50% efficiency and is focused 4 m downstream from the ion source that is provided by a spherical shape of the grids. The beam angular divergence is 0.6°. The ion source is used for plasma diagnostics at Alcator C-mod tokamak.

Deichuli, P. P.; Abdrashitov, G. F.; Ivanov, A. A.; Kolmogorov, V. V.; Mishagin, V. V.; Shul'Zhenko, G. I.; Stupishin, N. V.; Beals, D.; Granetz, R.

2006-03-01

279

Jefferson Lab: A Long Decade of Physics  

SciTech Connect

Jefferson Lab was created in 1984 and started operating in about 1996. 2011 is an appropriate time to try to take a look at the results that have appeared, what has been learned, and what has been exciting for our scientific community. Rather than attempt to construct a coherent view with a single author or at least a small number, we have, instead, invited small groups of people who have been intimately involved in the work itself to make contributions. These people are accelerator experts, experimentalists and theorists, staff and users. We have, in the main, sought reviews of the actual sub-fields. The primary exception is the first paper, which sets the scene as it was, in one person's view, at the beginning of Jefferson Lab. In reviewing the material as it appeared, I was impressed by the breadth of the material. Major advances are documented from form factors to structure functions, from spectroscopy to physics beyond the standard model of nuclear and particle physics. Recognition of the part played by spin, the helicities of the beams, the polarizations of the targets, and the polarizations of final state particles, is inescapable. Access to the weak interaction amplitudes through measurements of the parity violating asymmetries has led to quantification of the strange content of the nucleon and the neutron radius of lead, and to measurements of the electroweak mixing angle. Lattice QCD calculations flourished and are setting the platform for understanding of the spectroscopy of baryons and mesons. But the star of the game was the accelerator. Its performance enabled the physics and also the use of the technology to generate a powerful free electron laser. These important pieces of Jefferson Lab physics are given their place. As the third Director of Jefferson Lab, and on behalf of the other physicists and others presently associated with the lab, I would like to express my admiration and gratitude for the efforts of the directors, chief scientists, associate directors, physicists, engineers, technicians and administrators who made it all possible. In sum, we should celebrate the science that Jefferson Lab has realized in this, its first long decade of physics.

Hugh Montgomery

2011-06-01

280

78 FR 60245 - Privacy Act Systems of Records; LabWare Laboratory Information Management System  

Federal Register 2010, 2011, 2012, 2013

...Records; LabWare Laboratory Information Management System AGENCY: Animal and...is the LabWare Laboratory Information Management System, USDA-APHIS-19...entitled LabWare Laboratory Information Management System (LabWare...

2013-10-01

281

Harmonic Lasing Characterization at Jefferson Lab  

SciTech Connect

Harmonic lasing is normally suppressed because of lasing at the fundamental wavelength. It can, however, be achieved by using any of several methods that suppress fundamental lasing. In this paper we discuss two methods used at Jefferson Lab. The first is to use the characteristics of dielectric coatings to allow harmonic lasing at cavity lengths longer than the synchronous length for the fundamental. The second is to use a dielectric coating that has little reflectivity at the fundamental. This allows us to directly compare fundamental and harmonic lasing with the same optical resonator and electron beam. We present measurement carried out at Jefferson Lab using the IR Upgrade FEL operating at 0.53, 0.94, 1.04, 1.6, and 2.8 microns in which both schemes are used to produce lasing at both the 3rd and 5th harmonic of the fundamental.

Stephen Benson; Michelle D. Shinn

2006-08-27

282

Measuring the Gravity Field: "The Stairwell Lab"  

NSDL National Science Digital Library

Students will prepare for the lab by reading a description of gravity meter operation. After a brief quiz, the students will assemble with the meter in the stairwell of the building and measure the elevation to each level. After this, they will take multiple measurements on each level going up the stairwell, and then repeat the measurements on the way down, making sure to record the data values and the time. They will then convert the raw data to mGal using the conversion factor from the meter, and then use the data from the lower level to correct for drift. The corrected data are then plotted vs. elevation, a slope determined and the slope compared to the elevation correction term. The students will then write a lab report describing the procedure, presenting the data and their analysis, example calculations and their results. Has minimal/no quantitative component

Peavy, Samuel T.

283

Jefferson Lab Data Acquisition Run Control System  

SciTech Connect

A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coordinating the operation of DAQ sub-systems, online software components and third-party software such as external slow control systems. The main, unique feature which sets this system apart from conventional systems is its incorporation of intelligent agent concepts. Intelligent agents are autonomous programs which interact with each other through certain protocols on a peer-to-peer level. In this case, the protocols and standards used come from the domain-independent Foundation for Intelligent Physical Agents (FIPA), and the implementation used is the Java Agent Development Framework (JADE). A lightweight, XML/RDF-based language was developed to standardize the description of the run control system for configuration purposes.

Vardan Gyurjyan; Carl Timmer; David Abbott; William Heyes; Edward Jastrzembski; David Lawrence; Elliott Wolin

2004-10-01

284

Cornell Lab of Ornithology: Education Program  

NSDL National Science Digital Library

From the highly regarded Cornell Lab of Ornithology, this online Educator's Guide offers "activity ideas and support materials to learn about birds and conduct inquiry-based research." The Guide contains 10 introductory activities that encourage students to become a species specialist, go on a bird walk, set up a bird feeder, color in a downloadable Bird Coloring Book, and more. The website also offers ideas for student research with concise sections addressing the scientific method, suggested research questions, research project design, data analysis, and writing a scientific paper. In addition, the Guide provides information about innovative Citizen Science Projects; a helpful collection of bird-related resources and activity ideas for teachers; educational outreach ideas; and information about a Home Study Course in Bird Biology from the Cornell Lab of Ornithology.

285

Fluvial Transport of Bones Lab Exercise  

NSDL National Science Digital Library

The lab starts with a short lecture on the scientific method, after which students observe the results of a flume run that includes skeletal clasts. They form hypotheses about how bone clasts (or any clast for that matter) move and are deposited by a flow, then the students test their hypotheses by running a flume trial. The hypothesis tests take place in small groups (3-5 students), and the lab ends with homework where students use the information they learned from their hypothesis tests to interpret a fossil assemblage. As such, this is a wonderful activity for introductory geology classes, could be used effectively with minor adjustments for advanced paleontology, taphonomy, and forensic physical anthropology classes.

Evans, Thomas

286

Field Lab - Ecosystem and Paleoenvironment analysis  

NSDL National Science Digital Library

Students collect from two Devonian field sites. Each student works on their own collections; each genus is identified (and detailed sketches made), preservation noted, relative abundance reported; together with lithological information students are able to ascertain the mode of life of the fossils, and ascertain the depositional environment and whether these are life or death assemblages. The lab addresses the two 'content goals' of the course: assessing mode of life of an organism and determining the paleoenvironmental context.

Rainforth, Emma

287

Earthquakes Living Lab: Designing for Disaster  

NSDL National Science Digital Library

Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. Using online resources and simulations available through the Earthquakes Living Lab, students explore the consequences of subsurface ground type and building height on seismic destruction. Working in pairs, students think like engineers to apply what they have learned to sketches of their own building designs intended to withstand strong-magnitude earthquakes. A worksheet serves as a student guide for the activity.

Civil And Environmental Engineering Department

288

Overview of Nuclear Physics at Jefferson Lab  

SciTech Connect

The Continuous Electron Beam Accelerator Facility (CEBAF) and associated experimental equipment at Jefferson Lab comprise a unique facility for experimental nuclear physics. This facility is presently being upgraded, which will enable a new experimental program with substantial discovery potential to address important topics in nuclear, hadronic, and electroweak physics. Further in the future, it is envisioned that the Laboratory will evolve into an electron-ion colliding beam facility.

McKeown, Robert D. [JLAB

2013-08-01

289

A Paperless Lab Manual - Lessons Learned  

Microsoft Academic Search

Every freshman entering Rose-Hulman Institute of Technology is equipped with a laptop computer and a software package that allow classroom and laboratory instructors the freedom to make computer-based assignments, publish course materials in electronic form, etc. All introductory physics laboratories and many of our classrooms are networked, and students routinely take their laptop computers to class\\/lab. The introductory physics laboratory

Daniel L. Hatten; Maggie W. Hatten

1999-01-01

290

Strangeness photoproduction with CLAS at Jefferson Lab  

SciTech Connect

The CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab has been used to measure the elementary photoproduction of kaons and hyperons in the energy range of the nucleon resonances. Data have been obtained for the reactions gamma + p --> K{sup +} + {Lambda}, Sigma{sup o}, Lambda(1405)/Sigma(1385), Lambda(1520). These channels test our understanding of pseudoscalar meson photoproduction, and may extend our knowledge of the spectrum of non-strange baryons which decay to strangeness-containing final states.

Reinhard Schumacher

2000-01-01

291

Table-top Composite Panel Fabrication Lab  

NSDL National Science Digital Library

This lab experiment requires students to improve the mechanics of sandwich composites via construction and testing. Teams of students will "fabricate composite paper panels, and create both beams and signboards." The lesson can be completed within an hour.This activity would be appropriate for high school level students. This document will serve as a framework for instructors and may be downloaded in PDF format.

Johnson, Craig

2012-10-15

292

Integrated optics for Lab-On-Chip  

NASA Astrophysics Data System (ADS)

The miniaturization of traditional chemical and biochemical functionalities called Lab-On-Chip has many advantageous over existing methods, such as portability, small sample size, multiplexing and simpler automation and standardization. In recent years, the integration of microfluidic and microoptical elements together onto monolithic platforms has led to the new term optofluidics. We present novel optofluidic devices based on integrated waveguides, microfluidic channels and high-index fluids. Such devices have a variety of applications including label-free biochemical sensing and telecommunications.

Gu, Yu; Crespi, Andrea; Mariani, Lisa; Valentino, Gianna; Cerullo, Giulio; Osellame, Roberto

2013-03-01

293

Multigenre Lab Reports: Connecting Literacy and Science  

NSDL National Science Digital Library

The development of communication skills is a key component in any science program but most students don't see the connection between science and writing. Connect literacy and science by using this hands-on activity that is a fun alternative to traditional lab report writing because students can use whatever genre they think will best communicate what they learned in a science unit, such as comic strips or stories.

Rochwerger, Leonora; Peterson, Shelley S.; Calovini, Theresa

2006-04-01

294

The NASA Langley Isolator Dynamics Research Lab  

NASA Technical Reports Server (NTRS)

The Isolator Dynamics Research Lab (IDRL) is under construction at the NASA Langley Research Center in Hampton, Virginia. A unique test apparatus is being fabricated to support both wall and in-stream measurements for investigating the internal flow of a dual-mode scramjet isolator model. The test section is 24 inches long with a 1-inch by 2-inch cross sectional area and is supplied with unheated, dry air through a Mach 2.5 converging-diverging nozzle. The test section is being fabricated with two sets (glass and metallic) of interchangeable sidewalls to support flow visualization and laser-based measurement techniques as well as static pressure, wall temperature, and high frequency pressure measurements. During 2010, a CFD code validation experiment will be conducted in the lab in support of NASA s Fundamental Aerodynamics Program. This paper describes the mechanical design of the Isolator Dynamics Research Lab test apparatus and presents a summary of the measurement techniques planned for investigating the internal flow field of a scramjet isolator model.

Middleton, Troy F.; Balla, Robert J.; Baurle, Robert A.; Humphreys, William M.; Wilson, Lloyd G.

2010-01-01

295

Depositional Environments and Geologic History Labs  

NSDL National Science Digital Library

The goal of this pair of labs is for the students to learn to apply rock and fossil identification skills to determining rock formations, sedimentary depositional environments, age ranges, and, ultimately, to writing a geologic history of a sequence of rocks from Bryce, Zion, and Grand Canyons. During the first of the two labs, the students learn to make fossil and sedimentary structures identifications. They add these skills to their rock and mineral identification skills to make interpretations of the sedimentary environments along a generalized profile from terrestrial to offshore locations. During the second lab, they apply these skills to a sequence of rocks from the southwestern U.S. to interpret the environmental changes that have occurred over time. They also begin to learn how to use fossils to determine age ranges for these changing events. Once they put together all of their data, they construct a stratigraphic column and piece together a written narrative of the geologic history of the area. The students work in groups to collect their data and determine their stratigraphy. They write their geologic histories individually. The students learn how to apply their skills and knowledge to make interpretations and also learn how to support their determinations with data.

Waller, Maria; Gilbert, Kathy

296

Revising Geology Labs to Explicitly Use the Scientific Method  

NSDL National Science Digital Library

This article points out that many content- or skill-based labs can be revised to explicitly involve the scientific method by asking students to propose hypotheses before making observations. Labs in which this method has been successfully applied include skill-building labs such as topographic map labs, content-based labs involving experiments with models, and field labs. Because these labs force students to state their expectations before making observations, they allow students to test their own models for various processes, making the students feel more engaged in the observations. This type of exercise reinforces other discussions of the scientific method, and gives students a better understanding of how scientists think. It provides models for applying the scientific method that students can consider when they try to design tests for open-ended research questions in this or other courses.

Hannula, Kimberly

2003-03-01

297

EarthLabs: A National Model for Earth Science Lab Courses  

NASA Astrophysics Data System (ADS)

As a response to the need for more rigorous, inquiry-based high school Earth science courses, a coalition of scientists, educators, and five states have created EarthLabs, a set of pilot modules that can serve as a national model for lab-based science courses. The content of EarthLabs chapters focuses on Earth system science and environmental literacy and conforms to the National Science Education Standards as well as the states' curriculum frameworks. The effort is funded by NOAA's Environmental Literacy program. The pilot modules present activities on Corals, Drought, Fisheries, and Hurricanes. The Fisheries and Hurricanes units were reviewed and field-tested by educators in Texas and Arizona. The feedback from this evaluation led to revisions of these units and guided development of the Corals and Drought chapters. Each module consists of activities that use online data sets, satellite imagery, web-based readings, and hands-on laboratory experiments. The project comprises two separate websites, one for the instructor and one for students. The instructor's site contains the pedagogical underpinnings for each lab including teaching materials, assessment strategies, and the alignment of activities with state and national science standards. The student site provides access to all materials that students need to complete the activities or, in the case of the hands-on labs, where they access additional information to help extend their learning. There are also formative and summative questions embedded in the student webpages to help scaffold learning through the activities.

McDaris, J. R.; Dahlman, L.; Barstow, D.

2008-12-01

298

Fluid Interfaces Group: MIT Media Lab  

NSDL National Science Digital Library

Interested in spidervision? Or the possibilities of an augmented magnifier? You can learn about both of these new discoveries and many others at the Fluid Interfaces Group site. As part of the MIT Media Lab research group, its vision is primarily interested in "radically rethinking human-computer interaction with the aim of making the user experience more seamless, natural and integrated in our physical lives." On the homepage, visitors can look over sections that include People, Projects, Publications, and Press & Awards. The Publications area includes research papers and policy briefs on a variety of innovations and discoveries. Additionally, the site contains information about upcoming seminars and public events.

299

UVA Virtual Lab: Resistor Waterwheel Analogy  

NSDL National Science Digital Library

These pages provide a water model of an electrical circuit. In this case, the gerbil running in its wheel and the bucket pump are the equivalent of a battery. The water represents the electrons in the circuit. The height represents the voltage. The wheel represents the resistor. As the electrons fall from high to low, energy is available to do work. This model is part of the UVA Virtual Lab collection. This project is supported by grants from the National Science Foundation, the University of Virginia, IBM, and Discreet Corporation.

Bean, John

2010-12-23

300

Renewable Energy Living Lab: The Bright Idea  

NSDL National Science Digital Library

Students use real-world data to evaluate the feasibility of solar energy and other renewable energy sources in different U.S. locations. Working in small groups, students act as engineers evaluating the suitability of installing solar panels at four company locations. They access data from the online Renewable Energy Living Lab from which they make calculations and analyze how successful solar energy generation would be, as well as the potential for other power sources at those locations. Then they summarize their results, analysis and recommendations in the form of feasibility plans prepared for a CEO.

Civil And Environmental Engineering Department

301

Strangeness Physics with CLAS at Jefferson Lab  

SciTech Connect

We review recent developments in strangeness photo- and electro- production off the proton and neutron, as investigated using CLAS in Hall B at Jefferson Lab. By measuring sufficient spin observables one can decompose the reaction mechanism into elementary amplitudes. We discuss progress toward this end in recent data from CLAS, including cross sections and spin observables. We next discuss new results on the mass distribution of the Lambda(1405), which shows signs of being a composite meson-baryon object of mixed isospin. The work on other hyperons such as the Xi resonances will be mentioned, and future prospects for the CLAS program outlined.

Reinhard Schumacher

2010-08-01

302

Strangeness Physics with CLAS at Jefferson Lab  

SciTech Connect

We review recent developments in strangeness photo- and electro- production off the proton and neutron, as investigated using CLAS in Hall B at Jefferson Lab. By measuring sufficient spin observables one can decompose the reaction mechanism into elementary amplitudes. We discuss progress toward this end in recent data from CLAS, including cross sections and spin observables. We next discuss new results on the mass distribution of the {Lambda}(1405), which shows signs of being a composite meson-baryon object of mixed isospin. The work on other hyperons such as the {Xi} resonances will be mentioned, and future prospects for the CLAS program outlined.

Schumacher, Reinhard [Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213 (United States)

2010-08-05

303

Lab 1 - Introduction to Quartus II  

NSDL National Science Digital Library

This lab activity from the Digital Logic Project is designed to familiarize students with using many of the common aspects of the Quartus II software for digital logic design. Students will create a new project, create a new vhdl file, use the MegaWizard Plug-In Manager, compile the design, plan and manage I/O assignments, apply timing analysis using the TimeQuest Timing Analyzer, write Synopsys Design Contraint (SDC) files, and program a design onto the Altera DE2 Development Board.

2012-07-10

304

Phoenix Carries Soil to Wet Chemistry Lab  

NASA Technical Reports Server (NTRS)

This image taken by the Surface Stereo Imager on NASA's Phoenix Mars Lander shows the lander's Robotic Arm scoop positioned over the Wet Chemistry Lab delivery funnel on Sol 29, the 29th Martian day after landing, or June 24, 2008. The soil will be delivered to the instrument on Sol 30.

This image has been enhanced to brighten the scene.

The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

2008-01-01

305

Trapping Lab - Linking Equations and Graphs  

NSDL National Science Digital Library

This activity reinforcse the relationship between the solution to a system of equations and the intersection of their corresponding graph. Generally, students begin to solve systems by using graphing and then algebra. Once a student learns to solve the system by algebra, they often forget the connection to the graph. Hence in this lab, they will use algebra first and then graph their answers. The situation is one where the student is asked to determine where an animal trail intersects with an access road. Given linear equations which represent the placement of the access roads, assign each person/group one or more equations representing an 'animal trail'.

2011-01-01

306

Dauphin Island Sea Lab Discovery Hall Programs  

NSDL National Science Digital Library

Respected institution offers year-round marine science programs. School year programs for K-12 classes include half-day lecture and lab or fieldtrip on oceanography, hurricanes, other topics; reservations required. Summer programs include: 4-week course or high school students; 1-week camp for middle school students; half-day programs for ages 5-11. Four-day teacher workshops cover regional ecology; graduate credit available. Special workshops for Alabama teachers foster relationships between teachers and scientists. Information on program application process, prerequisites, fees.

307

Mag Lab U: Interactive Java Tutorials  

NSDL National Science Digital Library

This is a collection of more than 60 Java tutorials on concepts, laws, and historical milestones associated with electricity and magnetism. The simulations range in complexity from very simple to highly advanced. Topics include models for electricity, DC current, AC current, capacitance, electromagnetic induction, magnetic field around a wire, and more. The simulations of historical instruments help users visualize the work of pioneers in electricity and magnetism. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

Davidson, Michael

2010-05-12

308

Mag Lab U: Interactive Tutorials - Oersted's Compass  

NSDL National Science Digital Library

This interactive tutorial simulates the simple, yet groundbreaking, 1820 experiment that paved the way for understanding the relationship between electricity and magnetism. It is a virtual version of Hans Christian Oersted's voltaic pile battery outfitted with a live electrical wire. Students can turn the current on/off and also flip the battery. Watch what happens to the nearby compass to see why this experiment rocked the scientific world of the early 1800's. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

2011-01-23

309

Painless dental laser - Keith Murry in lab  

NASA Technical Reports Server (NTRS)

NASA inventor Keith Murray checks out laser technology that promises to make painless dental lasers affordable for dentists and their patients. Developed at NASA Langley Research Center, Hampton, Va., the dual-wavelength laser can be electronically switched between the two laser frequencies important to dentists. Co-inventors of the technology are Murray, Norman Barnes, also of Langley, and Ralph Hutcheson of Scientific Materials Corp., Bozeman, Montana. The technology was originally developed for studies of atmospheric wind change. Photographed in building 1202, laser lab.

2000-01-01

310

The Work Smart Standards process at Jefferson Lab  

SciTech Connect

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) has developed a set of Work Smart Standards for the Lab. The effort incorporated the Lab`s performance-based contract into the Necessary and Sufficient (N and S) Standards identification process of the DOE. A rigorous protocol identified hazards in the workplace and standards that provide adequate protection of workers, public, and the environment at reasonable cost. The intensive process was a joint effort between the Lab and DOE and it required trained teams of knowledgeable experts in three fields: (1) actual required work conditions at Jefferson Lab; (2) laws, regulations, DOE directives and performance-based contracts; and (3) Environmental Health and Safety (EH and S), Rad Con, and QA. The criteria for selection of the teams, the database designed and used for the process, and lessons learned are discussed.

Boyce, J.R.; Prior, S.; Hanson, E. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Morgan, B. [Dept. of Energy, Newport News, VA (United States). Thomas Jefferson National Accelerator Facility Site Office

1997-12-01

311

PSI research in the ITER divertor parameter range at the FOM PSI-lab  

NASA Astrophysics Data System (ADS)

FOM-Rijnhuizen is building, in cooperation with its Trilateral Euregio Cluster (TEC) partners, a PSI-laboratory to study plasma surface interaction (PSI) under extreme, ITER relevant plasma conditions. The largest linear plasma generator of PSI-lab is Magnum-PSI, and is designed to deliver up to 10 MW m-2 power over a 10 cm diameter hydrogen plasma beam with an electron density (ne) up to 1021 m-3 and electron-temperature (Te) between 1-5 eV. Magnum-PSI is presently under construction and its predesign is presented. Its forerunner is Pilot-PSI, in which record plasma parameters of ne=4×1021 m-3 at Te=2 eV in a ~1 cm wide hydrogen beam confined by a magnetic field (B) <=1.6 T were measured at 40 mm downstream the source nozzle. At 17 mm in front of a target (located at 0.56 m distance from the source nozzle), ne>1021 m-3 and Te<= 4 eV have been demonstrated. Initial experiments on exposing fine-grain carbon samples are presented that showed up to 20 ?m s-1 erosion as a demonstration of the extreme plasma conditions. Spectroscopy was applied to compare chemical erosion yields for flux densities up to 5.0×1024 m-2 s-1.

Westerhout, J.; Koppers, W. R.; Vijvers, W. A. J.; Al, R. S.; Brezinsek, S.; Brons, S.; van Eck, H. J. N.; Engeln, R.; de Groot, B.; Koch, R.; van der Meiden, H. J.; Nuijten, M. P.; Philipps, V.; van de Pol, M. J.; Prins, P. R.; Samm, U.; Scholten, J.; Schram, D. C.; Schweer, B.; Smeets, P. H. M.; Whyte, D. G.; Zoethout, E.; Kleyn, A. W.; Goedheer, W. J.; Lopes Cardozo, N. J.; van Rooij, G. J.

2007-03-01

312

NIPER Lab WARDEN -- Descriptive panels and diagrams for NIPER Lab WARDEN software. Volume 2.  

National Technical Information Service (NTIS)

This report is the second volume of a two-volume series on the NIPER Lab WARDEN computer program, a modular laboratory or pilot plant automation software designed for data acquisition/control/analysis/presentation. Volume 1 of the series is the User Manua...

D. K. Olsen S. M. Mahmood

1994-01-01

313

The Mysterious Death: An HPLC Lab Experiment. An Undergraduate Forensic Lab  

ERIC Educational Resources Information Center

A high-performance liquid chromatography (HPLC) laboratory experiment based on the separation of four prescription drugs (disopyramide, lidocaine, procainamide, and quinidine) is presented. The experiment is set within the forensic science context of the discovery of a patient's mysterious death where a drug overdose is suspected. Each lab group…

Beussman, Douglas J.

2007-01-01

314

NIPER Lab WARDEN -- Descriptive panels and diagrams for NIPER Lab WARDEN software. Volume 2  

SciTech Connect

This report is the second volume of a two-volume series on the NIPER Lab WARDEN computer program, a modular laboratory or pilot plant automation software designed for data acquisition/control/analysis/presentation. Volume 1 of the series is the User Manual that serves all users, whereas this volume is the Reference Manual intended for advanced users examining the structure or modifying the program. Volume 1 contains a brief introduction of LabVIEW and object-oriented programming, various features of the NIPER Lab WARDEN program, instructions on how to use these features, and several example problems and their step-by-step solutions. This volume (Volume 2) contains the complete program code needed to reproduce or modify the program. It includes the position in hierarchy, the connector pane, the front panel, and the block diagram for each of the virtual instruments (VI) in NIPER Lab WARDEN. The panels and block diagrams contained herein are generated from the computer program described in Volume 1 but are arranged to show and explain the structure and interrelationship between various elements of the program.

Mahmood, S.M.; Olsen, D.K.

1994-04-01

315

The Design of NetSecLab: A Small Competition-Based Network Security Lab  

ERIC Educational Resources Information Center

This paper describes a competition-style of exercise to teach system and network security and to reinforce themes taught in class. The exercise, called NetSecLab, is conducted on a closed network with student-formed teams, each with their own Linux system to defend and from which to launch attacks. Students are expected to learn how to: 1) install…

Lee, C. P.; Uluagac, A. S.; Fairbanks, K. D.; Copeland, J. A.

2011-01-01

316

Using round table labs to complement didactic lectures and experimental labs.  

PubMed

In an effort to teach the volume of material needed by physiology students as well as to enhance the student's understanding of physiological mechanisms, a combination of teaching methods is being used at the undergraduate level. Didactic lectures are used to convey the mass of information needed, experimental labs are used to aid the student in visualizing concepts, and situational labs [called round table labs (RTLs) here] are used to provide an opportunity for the student to learn, in a risk-free setting, how to answer application questions. The RTLs utilize discussion, writing, verbal communication, and analytic thinking. The major emphasis of the RTLs is on the integrative nature of physiology. Use of the RTLs bridges, the gap among the facts learned in the didactic lecture, the hands-on learning of the experimental lab, and the need to be able to apply what is being learned. Using this combination facilitates student learning such that the student reaches a level of proficiency with the subject beyond that which can be attained with the more traditional lecture-exam format. PMID:9841568

Nekvasil, N P

1998-06-01

317

Renovations to a plasma teaching laboratory  

SciTech Connect

With the aid of a National Science Foundation teaching equipment grant, replacement of dated equipment and the implementation of new experiments have upgraded the University of Michigan Department of Nuclear Engineering's 25-yr-old plasma laboratory course. The course teaches seniors and first-year graduate students methods of plasma production as well as plasma diagnostics. This paper describes four new experiments as well as the highlights of some of the equipment upgrades. The plasma lab course has introduced three new diagnostic techniques and one new plasma generation experiment in the past two years. They are (a) probe measurements of the electron energy distribution function, (b) laser/Schlieren photos of shock waves produced by a pulsed plasma, (c) a laser deflection technique for determining hot gas densities, and (d) capacitively coupled radio-frequency plasma generation.

Brake, M.L.; Lee, M.; Ventzek, P.; Passow, M. (Univ. of Michigan, Ann Arbor (United States))

1991-01-01

318

Usage of microfluidic lab-on-chips in biomedicine  

Microsoft Academic Search

Lab-on-chip systems comprise a class of devices that integrate fluidics and electronics on a single chip. Lab-on-chip devices are capable of handling and analysing chemical and biological liquid samples. Microfluidic devices comprise a broader group that includes lab-on-chip devices and also micro total analysis systems (?TAS). The formers are devoted to laboratory use, such as sample testing and handling, while

A. T. Giannitsis; M. Min

2010-01-01

319

Diamond Research Overview and a Model for Lab Experiments Using Oxyacetylene Torch  

NASA Technical Reports Server (NTRS)

High pressure synthetic diamonds have now been a commercial product for over 40 years. Russian scientists invented the chemical vapor deposition (CVD) process 30 years ago, while the Japanese followed 10 years later and the U.S. was introduced to it 10 years after that. The new syntheses focus is on liquid and solid phase approaches. There are three CVD processes: microwave plasma, hot filament, and oxy-acetylene torch. The oxy-acetylene torch is an excellent materials synthesis lab experiment, emphasizing the simplicity of the science.

Roy, Rustum

1996-01-01

320

MarsLab: A HEDS Lander Concept  

NASA Technical Reports Server (NTRS)

Recognizing that the human exploration of Mars will be a science-focused enterprise, the Human Exploration and Development of Space (HEDS) program set out three years ago to develop a mix of science and technology Lander payloads as a first step toward a human mission. With three experiments ready for flight and four more in development, the HEDS Mars program has the capability to stage missions with considerable impact. This presentation describes one such mission design by no means unique. Ambitious in scope, it encompasses elements of all seven HEDS payloads in a configuration with a uniquely HEDS character. Pragmatically, a subset of these elements could be selected for existing small Lander platforms. Bristling with scientific experiments, technology demonstrations, and outreach elements, MarsLab represents a prototype of a manned science station or scientific outpost. A cartoon overview of MarsLab defines its major elements, explained more fully in the sections that follow. The concept is endorsed by PI's of the various HEDS payloads, details of which are presented elsewhere at this workshop.

Hecht, M. H.; McKay, C.; Connolly, J.

2000-01-01

321

PC/104 Embedded IOCs at Jefferson Lab  

SciTech Connect

Jefferson Lab has developed embedded IOCs based on PC/104 single board computers (SBC) for low level control systems. The PC/104 IOCs run EPICS on top of the RTEMS operating system. Two types of control system configurations are used in different applications, PC/104 SBC with commercial PC/104 I/O cards and PC/104 SBC with custom designed FPGA-based boards. RTEMS was built with CEXP shell to run on the PC/104 SBC. CEXP shell provides the function of dynamic object loading, which is similar to the widely used VxWorks operating system. Standard software configurations were setup for PC/104 IOC application development to provide a familiar format for new projects as well as ease the conversion of applications from VME based IOCs to PC/104 IOCs. Many new projects at Jefferson Lab are going to employ PC/104 SBCs as IOCs and some applications have already been running them for accelerator operations. The PC/104 - RTEMS IOC provides a free open source Real-Time Operating System (RTOS), low cost/maintenance, easily installed/ configured, flexible, and reliable solution for accelerator control and 12GeV Upgrade projects.

Jianxun Yan, Trent Allison, Sue Witherspoon, Anthony Cuffe

2009-10-01

322

Tracker Lab Manual and Workshop Resources  

NSDL National Science Digital Library

This is a set of handouts, a presentation, and videos that one can use for a workshop to teach others how to use Tracker. The resources may also be adapted for students to learn Tracker. Subdocuments for this item contain: presentation slides in PowerPoint a one-page Tracker "cheat sheet" with instructions for the most often-used tasks a sample lab manual with 6 Tracker video analysis labs that include: uniform motion inertial and non-inertial reference frames (Newton's first law) force on a person landing after a jump (Newton's second law) center of mass motion (collision) uniform circular motion of a bicycle wheel conservation of angular momentum of a figure skater all videos and Tracker files for the experiments and presentation source for all handouts that can be edited with LaTeX To open the Tracker file, download and run Tracker from http://www.cabrillo.edu/~dbrown/tracker/. Tracker is free. The videos can be used with other video analysis software; however, the handout has screen captures from Tracker and instructions specifically written for Tracker. All videos maintain the copyright of those who recorded the video and are shared with permission of the video authors. All handouts created by Aaron Titus may be freely edited and redistributed without citation.

Titus, Aaron

2012-06-06

323

COSMO.LAB: Software for Stereographic Viewing  

NASA Astrophysics Data System (ADS)

A Virtual Observatory will have to deal with the problem of easy and quick data display. Most astronomical catalogs contain multi-dimensional data but the common visualization packages only allow for displaying two dimensions at a time. This is now a severe and unnecessary limitation: modern day computer technology permits true 3D visualization at very low cost. A new software package (Cosmo.Lab) which can run under different operating systems (Linux MSWindows) has been developed that makes stereographic vision easy fast and user-friendly. The project funded by the European Union is at present in an advanced stage of completion. The software is able to handle very large data sets and manipulate the data (zooming rotation etc.) in real time. It can read gridded data as well as object lists extracted from astronomical catalogs. One of the strong points is the portability of the package on many different computer platforms ranging form (costly) virtual 3D theaters to (very cheap) personal computers. Finally we should mention that Cosmo.Lab is freeware i.e. it can be freely downloaded from the WEB page of CINECA. At request a CD-ROM is also available.

de Ruiter, Hans R.

324

5. Historic American Buildings Survey, Brown University Photographic Lab, 1961 ...  

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

5. Historic American Buildings Survey, Brown University Photographic Lab, 1961 FIRST FLOOR TOWER ROOM, LOOKING NORTHEAST. - George H. Corliss House, 45 Prospect Street, Providence, Providence County, RI

325

Stream piracy in the Black Hills: A geomorphology lab exercise  

USGS Publications Warehouse

The Black Hills of South Dakota exhibits many fine examples of stream piracy that are very suitable for teaching geomorphology lab exercises. This lab goes beyond standard topographic map interpretation by using geologic maps, well logs, gravel provenance and other types of data to teach students about stream piracy. Using a step-by-step method in which the lab exercises ramp up in difficulty, students hone their skills in deductive reasoning and data assimilation. The first exercises deal with the identification of stream piracy at a variety of spatial scales and the lab culminates with an exercise on landscape evolution and drainage rearrangement.

Zaprowski, B. J.; Evenson, E. B.; Epstein, J. B.

2002-01-01

326

The History of Science and Technology at Bell Labs  

NASA Astrophysics Data System (ADS)

Over the last 80 years, Bell Labs has been one of the most scientifically and technologically productive research labs in the world. Inventions such as the transistor, laser, cell phone, solar cell, negative feedback amplifier, communications satellite and many others were made there. Scientific breakthroughs such as discovery of the Big Bang, the wave nature of the electron, electron localization and the fractional quantum hall effect were also made there making Bell Labs almost unique in terms of large impacts in both science and technology. In my talk, I will discuss the history of the lab, talk about the present and give some suggestions for how I see it evolving into the future.

Bishop, David

2008-03-01

327

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. BEVATRON SHIELDING - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

328

Dark-current-free laser-plasma acceleration in blowout regime using nonlinear plasma lens  

NASA Astrophysics Data System (ADS)

It is demonstrated that a thin dense plasmas lab (lens), placed before a multi-centimeter-length, low-density plasma (accelerator), overfocuses an incident petawatt laser pulse at a controlled location inside the accelerator, creating an expanding electron density bubble that traps plasma electrons over a brief time interval. As soon as the pulse stabilizes and self-guiding begins, the bubble stabilizes and transforms into the ?rst (non-broken) bucket of a conventional three-dimensional nonlinear plasma wave, eliminating any chance for further injection. A well collimated, quasi-monoenergetic electron bunch with a zero low-energy background further accelerates to a multi-GeV energy.

Kalmykov, S. Y.

2013-01-01

329

Computer-based Astronomy Labs for Non-science Majors  

NASA Astrophysics Data System (ADS)

We describe and demonstrate two laboratory exercises, Kepler's Third Law and Stellar Structure, which are being developed for use in an astronomy laboratory class aimed at non-science majors. The labs run with Microsoft's Excel 98 (Macintosh) or Excel 97 (Windows). They can be run in a classroom setting or in an independent learning environment. The intent of the labs is twofold; first and foremost, students learn the subject matter through a series of informational frames. Next, students enhance their understanding by applying their knowledge in lab procedures, while also gaining familiarity with the use and power of a widely-used software package and scientific tool. No mathematical knowledge beyond basic algebra is required to complete the labs or to understand the computations in the spreadsheets, although the students are exposed to the concepts of numerical integration. The labs are contained in Excel workbook files. In the files are multiple spreadsheets, which contain either a frame with information on how to run the lab, material on the subject, or one or more procedures. Excel's VBA macro language is used to automate the labs. The macros are accessed through button interfaces positioned on the spreadsheets. This is done intentionally so that students can focus on learning the subject matter and the basic spreadsheet features without having to learn advanced Excel features all at once. Students open the file and progress through the informational frames to the procedures. After each procedure, student comments and data are automatically recorded in a preformatted Lab Report spreadsheet. Once all procedures have been completed, the student is prompted for a filename in which to save their Lab Report. The lab reports can then be printed or emailed to the instructor. The files will have full worksheet and workbook protection, and will have a "redo" feature at the end of the lab for students who want to repeat a procedure.

Smith, A. B. E.; Murray, S. D.; Ward, R. A.

1998-12-01

330

Jefferson Lab's Journey into the Nucleus  

SciTech Connect

The year 1969 saw the publication of the first results indicating that hard scattering centres exist deep inside protons. A collaboration between the Stanford Linear Accelerator Center (SLAC) and the Massachusetts Institute of Technology was using SLAC's new high-energy electron LINAC to pioneer a rich new field in the study of the nucleus--deep inelastic scattering. Their measurements revealed that nucleons are made up of point-like particles, which Richard Feynman dubbed ''partons''. Thirty-five years on, studies of the parton-nature of the nucleus continue, not only at the traditional high-energy centres, but also at lower-energy laboratories, and in particular at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) in Virginia. Jefferson Lab is home to the Continuous Electron Beam Accelerator Facility (CEBAF). Its main mission is to explore the atomic nucleus and the fundamental building-blocks of matter. As part of this mission, researchers there study the transition from the picture of the nucleus as a bound state of neutrons and protons to its deeper structure in terms of quarks and gluons--in other words, the transition from the hadronic degrees of freedom of nuclear physics to the quark-gluon degrees of freedom of high-energy physics. In exploring this transition, a wide range of experiments has been performed, from measurements of elastic form factors at large momentum transfers to studies of deep inelastic scattering. An array of spectrometers together with electron-beam energies of up to 5.7 GeV has allowed the laboratory to make significant contributions to this field. This article describes three experiments, each aimed at improving our understanding of a different aspect of the partonic nature of matter. The first, a classic deep inelastic scattering experiment, seeks to further our understanding of the composition of nucleon spin. The second experiment studies the concept of quark-hadron duality--a link between the deep inelastic region and the resonance region. The third experiment uses the atomic nucleus as a laboratory to improve understanding of the propagation and hadronization of quarks. Jefferson Lab's ability to perform this range of measurements is illustrated by the plot from the CEBAF Large Acceptance Spectrometer (CLAS) shown on the cover of this magazine, where the hadronic resonance peaks are seen to be washed out as one goes from the delta resonance around 1.2 GeV to higher invariant masses and into the deep inelastic scattering realm of quarks and gluons.

Douglas Higinbotham

2004-11-01

331

EarthLabs Meet Sister Corita Kent  

NASA Astrophysics Data System (ADS)

The EarthLabs project provides a framework to enhance high school students' climate literacy and awareness of climate change. The project provides climate science curriculum and teacher professional development, followed by research on students' learning as teachers implement EarthLabs climate modules in the classroom. The professional development targets high school teachers whose professional growth is structured around exposure to current climate science research, data observation collection and analysis. During summer workshops in Texas and Mississippi, teachers work through the laboratories, experiments, and hand-on activities developed for their students. In summer 2013, three graduate students from the University of Texas at Austin Institute for Geophysics with expertise in climate science participated in two weeklong workshops. The graduate students partnered with exemplary teacher leaders to provide scientific content and lead the EarthLabs learning activities. As an experiment, we integrated a visit to the Blanton Museum and an associated activity in order to motivate participants to think creatively, as well as analytically, about science. This exercise was inspired by the work and educational philosophy of Sister Corita Kent. During the visit to the Blanton Museum, we steered participants towards specific works of art pre-selected to emphasize aspects of the climate of Texas and to draw participants' attention to ways in which artists convey different concepts. For example, artists use of color, lines, and symbols conjure emotional responses to imagery in the viewer. The second part of the exercise asked participants to choose a climate message and to convey this through a collage. We encouraged participants to combine their experience at the museum with examples of Sister Corita Kent's artwork. We gave them simple guidelines for the project based on techniques and teaching of Sister Corita Kent. Evaluation results reveal that participants enjoyed the activity and saw its value for enhancing their own appreciation of climate science. However, participants expressed skepticism about using the exercise with their own students. Teachers' perception was that students would not make the same connections that they did. From our perspective and participants' enthusiasm we encourage collaboration between art and science teachers in joint activities that emphasize the link between art and science.

Quartini, E.; Ellins, K. K.; Cavitte, M. G.; Thirumalai, K.; Ledley, T. S.; Haddad, N.; Lynds, S. E.

2013-12-01

332

An Experimental Undergraduate Laboratory Plasma Station  

NASA Astrophysics Data System (ADS)

Plasma physics is an intimidating field to study and can be even a more daunting exercise to teach. At the Princeton Plasma Physics Laboratory we have created an all-inclusive undergraduate lab setup that encompasses three of the major experiments commonly seen in introductory graduate level plasma labs to improve upon the existing teaching tools available in the community and to expose undergraduates to the field. These experiments include Langmuir probe studies (single and double), spectroscopy, and Paschen curve analysis. The apparatus used to conduct the experiments is built upon a mobile station of a minimal footprint and maintenance requirements. The goal of the project was to create an easy to implement design that can be replicated by fledging undergraduate programs, community colleges, small liberal arts school or even established programs looking to streamline or build upon current curriculum.

Ross, Jerry; Zwicker, Andrew

2010-11-01

333

Smartphones as portable oscilloscopes for physics labs  

NASA Astrophysics Data System (ADS)

Given that today's smartphones are mobile and have more computing power and means to measure the external world than early PCs, they may also revolutionize data collection, both in structured physics laboratory settings and in less predictable situations, outside the classroom. Several examples using the internal sensors available in a smartphone were presented in earlier papers in this column.1, 2 But data collection is not limited only to the phone's internal sensors since most also have a headphone port for connecting an external microphone and speakers. This port can be used to connect to external equipment in much the same way as the game port on the early Apple II was used in school labs. Below is an illustration using the headphone port to receive data from an external circuit: smartphones as a portable oscilloscope using commercially available hardware and applications.

Forinash, Kyle; Wisman, Raymond F.

2012-04-01

334

Mag Lab U: Interactive Tutorials - Voltaic Pile  

NSDL National Science Digital Library

In this interactive tutorial, users play with a simulated version of the historic "voltaic pile", commonly considered to be the world's first battery. Constructed by 18th-century scientist Alessandro Volta, the voltaic pile consisted of discs of zinc and copper alternated with pasteboard or leather moistened with brine or vinegar. Each three-disc unit comprised a single electric cell capable of producing a current. Volta's invention of the pile device was momentous because it provided the first consistent source of sustained electric current. Mag Lab U is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.

2010-05-26

335

The Jefferson lab FEL driver ERLs  

SciTech Connect

Jefferson Lab has - for over a decade - been operating high power IR and UV FELs using CW energy recovering linacs based on DC photocathode electron sources and CEBAF SRF technology. These machines have unique combinations of beam quality, power, and operational flexibility, and thus offer significant opportunity for experiments that use low and medium energy (several tens - few hundreds of MeV) electron beams. We will describe the systems and detail their present and near-term (potential) performance. Recent internal-target analysis and validation testing will be discussed, and schemes for single- and two-pass fixed target operation described. An introduction to subsequent discussions of beam quality and upgrade paths to polarized operation/higher energy will be given.

Douglas, David R. [JLAB; Tennant, Christopher D. [JLAB

2013-11-01

336

Chemical Lab Safety Rules Learning Module  

NSDL National Science Digital Library

The Southwest Center for Microsystems Education is a Regional Advanced Technology Education Center funded in part by the National Science Foundation. This learning module - Chemical Lab Safety Rules - covers safety rules for one's personal safety when working with and around chemicals, handling and pouring chemicals properly, the specifics for working with solvents vs. corrosives, spill or leak response, and many other areas. An activity and assessment are including in this learning module along with an observation checklist that you could use to observe participants in a laboratory environment and ensure that the safety rules are being followed. Visitors are encouraged to create an account and login in order to access the full set of resources.

2011-09-23

337

Cold Regions Research and Engineering Lab (CRREL)  

NSDL National Science Digital Library

The mission of the Cold Regions Research and Engineering Lab (CRREL), a facility of the US Army Corps of Engineers, is to "gain knowledge of the cold regions [32 degrees Fahrenheit or 0 degrees Celsius] through scientific and engineering research -- and put that knowledge to work for the Corps of Engineers, the Army, the Department of Defense, and the nation." Research of these cold regions is largely centered in the earth sciences including atmospheric and ocean sciences along with the basic physical sciences. Examples of research that CRREL has conducted for the National Science Foundation (NSF) or NSF-funded university partners in the Antarctic are Field Studies and Modeling of the Breakup of Antarctic Sea Ice, Theoretical Modeling of Seismic Noise Propagation at the South Pole, and Near-Surface Processes Affecting Gas Exchange: West Antarctic Ice Sheet, among others. Sections included at the site are About CRREL, Research & Engineering, Technical Information, Technology Transfer, and links to related sites.

338

Nucleon spin structure at Jefferson Lab  

NASA Astrophysics Data System (ADS)

In the past decade an extensive experimental program to measure the spin structure of the nucleon has been carried out in the three halls at Jefferson Lab. Using a longitudinally polarized beam scattering off longitudinally or transversely polarized 3He, NH3 and ND3 targets, the double spin asymmetries A? and A? were measured, providing data of impressively high precision that gives a better understanding of the structure of the nucleon in the deep inelastic scattering and the valence quarks regions. The virtual photon asymmetries A1,2 and polarized structure functions g1,2 were also extracted for the proton, neutron and deuteron over large kinematic ranges, allowing the extraction of first moments and the testing of sum rules and duality.

Biselli, Angela

2011-10-01

339

The Jefferson Lab 1 KW IR FEL  

SciTech Connect

The Jefferson Lab (JLab) IR Demo Free Electron Laser (FEL) has completed commissioning and is initiating user service. The FEL - a high repetition rate, low extraction efficiency wiggler-driven optical cavity resonator - produces over 1 kW of tuneable light on intervals in a 3-6 lim wavelength range. It is driven by a 35-48 MeV, 5 mA superconducting RF (SRF) based energy-recovering continuous wave (CW) electron linac. The driver accelerator meets requirements imposed by low energy, high current, and a demand for stringent beam control at the wiggler and during energy recovery. These constraints are driven by the need for six-dimensional phase space management, the existence of deleterious collective phenomena (space charge, wake-fields, beam break-up, and coherent synchrotron radiation), and interactions between the FEL and the accelerator RF. The authors detail the system design, relate commissioning highlights, and discuss present performance.

D. Douglas for the Jefferson Lab IR Demo FEL Team

2000-08-01

340

Composite Column Design/Test Lab  

NSDL National Science Digital Library

Effective engineered composite design activities require predictive and quantitative methodology. This research incorporates engineering design, using smart spreadsheets, into a laboratory activity focusing on columns made of composite materials. In a previous work, a laboratory activity was developed supporting composite design of polymer matrix composite beams. The present work applies a similar approach expanded to ceramic composites in the form of columns. In the lab, students simulate composite columns and use a smart spreadsheet to help optimize their design for engineering performance, including specific properties. Parameters are discussed and evaluated before the column is made. The composite is then fabricated. Finally, the composite is tested and the experimental data (critical load for columns) is compared to predictions.

Johnson, Craig

2009-09-22

341

Making the Case for Jefferson Lab  

NASA Astrophysics Data System (ADS)

This chapter is a personal account of the initial planning and competition for a new laboratory, which eventually became known as the Thomas Jefferson National Accelerator Facility, with the official nickname "Jefferson Lab." The period covered starts as far back as 1964, with the introduction of quarks, and extends up to the late 1980s after the initial team was assembled, the superconducting design was in place, and construction was well underway. I describe some of the major experiments that were proposed to justify the laboratory, reflect on the present status of those initially proposed experiments, and very briefly outline some of the new ideas that emerged after the laboratory was constructed. The science is presented in a simple manner intended for a lay audience, with some of the ideas illustrated by cartoons that were often used in popular lectures given during this period.

Gross, Franz

2011-05-01

342

A Paperless Lab Manual - Lessons Learned  

NASA Astrophysics Data System (ADS)

Every freshman entering Rose-Hulman Institute of Technology is equipped with a laptop computer and a software package that allow classroom and laboratory instructors the freedom to make computer-based assignments, publish course materials in electronic form, etc. All introductory physics laboratories and many of our classrooms are networked, and students routinely take their laptop computers to class/lab. The introductory physics laboratory manual was converted to HTML in the summer of 1997 and was made available to students over the Internet vice printing a paper manual during the 1998-99 school year. The aim was to reduce paper costs and allow timely updates of the laboratory experiments. A poll conducted at the end of the school year showed a generally positive student response to the online laboratory manual, with some reservations.

Hatten, Daniel L.; Hatten, Maggie W.

1999-10-01

343

Cosmic Ray Statistics using LabVIEW  

NSDL National Science Digital Library

Counting statistics of cosmic rays is explored using a LabVIEW based computer program on a computer connected to a National Instruments data acquisition unit. The program collects the interval times between successive coincident pulses from a stack of plastic scintillator detectors. Analysis of the data set allows students to see the distribution of N-pulse intervals for various values of N; this is the Erlang distribution. With N = 1, the Erlang distribution is exponential with a characteristic time equal to mean count interval t. When N is increased, the distribution becomes peaked at Nt with a fractional width proportional to 1/?N. This is an instance of the central limit theorem. Students may also examine the data set according to the distribution of numbers of pulses recorded for a series of fixed-length intervals, which for random pulses follows the Poisson distribution. Again, as the length of the interval increases, the distribution conforms to the central limit theorem: it becomes normal with a well-defined mean and width, both related to mean and width of the underlying distribution. The software also allows students to simulate pulse-intervals that follow a uniform distribution (e.g., any real number between 0 and 1 has equal probability) or a Gaussian one. In these cases, one can see that the counts per fixed interval length do not follow the Poisson distribution, although all types become normal at longer intervals or greater numbers of pulses per interval length. This serves to drive home the point that cosmic ray counts are truly a Poisson process and also to illustrate the significant power of the central limit theoremâ that regardless of the underlying probability distribution function, when N becomes large the distribution becomes normal with a well-defined mean and width. Presented at the 2013 AAPT Summer Meeting in Portland, Oregon. W36: Advanced Labs Workshop

Pengra, David B.

2013-10-02

344

Lab-on a-Chip  

NASA Technical Reports Server (NTRS)

Labs on chips are manufactured in many shapes and sizes and can be used for numerous applications, from medical tests to water quality monitoring to detecting the signatures of life on other planets. The eight holes on this chip are actually ports that can be filled with fluids or chemicals. Tiny valves control the chemical processes by mixing fluids that move in the tiny channels that look like lines, connecting the ports. Scientists at NASA's Marshall Space Flight Center (MSFC) in Huntsville, Alabama designed this chip to grow biological crystals on the International Space Station (ISS). Through this research, they discovered that this technology is ideally suited for solving the challenges of the Vision for Space Exploration. For example, thousands of chips the size of dimes could be loaded on a Martian rover looking for biosignatures of past or present life. Other types of chips could be placed in handheld devices used to monitor microbes in water or to quickly conduct medical tests on astronauts. The portable, handheld Lab-on-a Chip Application Development Portable Test System (LOCAD-PTS) made its debut flight aboard Discovery during the STS-116 mission launched December 9, 2006. The system allowed crew members to monitor their environment for problematic contaminants such as yeast, mold, and even E.coli, and salmonella. Once LOCAD-PTS reached the ISS, the Marshall team continued to manage the experiment, monitoring the study from a console in the Payload Operations Center at MSFC. The results of these studies will help NASA researchers refine the technology for future Moon and Mars missions. (NASA/MSFC/D.Stoffer)

1999-01-01

345

The Jefferson Lab High Power Light Source  

SciTech Connect

Jefferson Lab has designed, built and operated two high average power free-electron lasers (FEL) using superconducting RF (SRF) technology and energy recovery techniques. Between 1999-2001 Jefferson Lab operated the IR Demo FEL. This device produced over 2 kW in the mid-infrared, in addition to producing world record average powers in the visible (50 W), ultraviolet (10 W) and terahertz range (50 W) for tunable, short-pulse (< ps) light. This FEL was the first high power demonstration of an accelerator configuration that is being exploited for a number of new accelerator-driven light source facilities that are currently under design or construction. The driver accelerator for the IR Demo FEL uses an Energy Recovered Linac (ERL) configuration that improves the energy efficiency and lowers both the capital and operating cost of such devices by recovering most of the power in the spent electron beam after optical power is extracted from the beam. The IR Demo FEL was de-commissioned in late 2001 for an upgraded FEL for extending the IR power to over 10 kW and the ultraviolet power to over 1 kW. The FEL Upgrade achieved 10 kW of average power in the mid-IR (6 microns) in July of 2004, and its IR operation currently is being extended down to 1 micron. In addition, we have demonstrated the capability of on/off cycling and recovering over a megawatt of electron beam power without diminishing machine performance. A complementary UV FEL will come on-line within the next year. This paper presents a summary of the FEL characteristics, user community accomplishments with the IR Demo, and planned user experiments.

James R. Boyce

2006-01-01

346

Evaluating Computer Lab Modules for Large Biology Courses.  

ERIC Educational Resources Information Center

This paper describes the first phase of a study to investigate students' evaluations of computer laboratory modules in a university-level, non-majors biology course. The National Science Foundation-funded project has two primary goals: (1) to develop programmable, multifunctional Bio LabStations for data collection and analysis, lab extensions,…

Eichinger, David C.; And Others

347

Implementation of Siemens USS protocol into LabVIEW.  

PubMed

This article gives basic overview of the USS protocol as a communication interface to drive Siemens frequency inverters. It presents our implementation of this protocol into LabVIEW, as there was permanent demand from the community of the users to have native LabVIEW implementation of the USS protocol. It also states encountered problems and their solutions. PMID:21906560

Hosek, P; Diblik, M

2011-10-01

348

Being a Clinical Psychologist at the Lab School of Baltimore  

ERIC Educational Resources Information Center

Each day, seeking to address the never ending challenge of helping students with learning disabilities, the author's Baltimore Lab School and Lab School of Washington (LSW) colleagues remember a similar situation in the past and they try to recall what Sally Smith taught them. Smith taught the author a lot in his seven years of working with…

Oliver, Edwin

2010-01-01

349

The Living Labs: Innovation in Real-Life Settings  

ERIC Educational Resources Information Center

The living lab (LL) is an open innovation ecosystem serving to provide opportunities for local stakeholders to practice research and to experiment with meaningful improvements for cities and other organizations. Living labs aim at involving the user as a cocreator. In this article the relationship between the LLs and a variety of stakeholders is…

Hawk, Nathan; Bartle, Gamin; Romine, Martha

2012-01-01

350

A Computer Lab that Students Use but Never See  

ERIC Educational Resources Information Center

North Carolina State University may never build another computer lab. Instead the university has installed racks of equipment in windowless rooms where students and professors never go. This article describes a project called the Virtual Computing Lab. Users enter it remotely from their own computers in dormitory rooms or libraries. They get all…

Young, Jeffrey R.

2008-01-01

351

Prescriptive Teaching: An Rx for the Writing Lab.  

ERIC Educational Resources Information Center

Students who visit writing labs are often inexperienced writers who need help and even prescriptive teaching. Although some compositionists are leery of including prescriptive help among possible teaching strategies, the writing lab tutor's position as advisor rather than judge helps students accept the suggestions as the options they are. As…

Conway, Kathleen

352

Personal Adult Learning Lab (Pall). Implications for Practice.  

ERIC Educational Resources Information Center

The Personal Adult Learning Lab was establsiehd at the Georgia Center for Continuing Education (GCCE) at the University of Georgia to serve self-directed adult learners and conduct research on self-directed learning. The lab allows adult learners to design, conduct, and evaluate their personal learning experiences while proceeding at their own…

Klippel, Judith A.; And Others

353

LIVING LAB: User-Driven Innovation for Sustainability  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to summarize and discuss the results from the LIVING LAB design study, a project within the 7th Framework Programme of the European Union. The aim of this project was to develop the conceptual design of the LIVING LAB Research Infrastructure that will be used to research human interaction with, and stimulate…

Liedtke, Christa; Welfens, Maria Jolanta; Rohn, Holger; Nordmann, Julia

2012-01-01

354

Genomics Education in Practice: Evaluation of a Mobile Lab Design  

ERIC Educational Resources Information Center

Dutch genomics research centers have developed the "DNA labs on the road" to bridge the gap between modern genomics research practice and secondary-school curriculum in the Netherlands. These mobile DNA labs offer upper-secondary students the opportunity to experience genomics research through experiments with laboratory equipment that is not…

Van Mil, Marc H. W.; Boerwinkel, Dirk Jan; Buizer-Voskamp, Jacobine E.; Speksnijder, Annelies; Waarlo, Arend Jan

2010-01-01

355

Strategic Design of an Interactive Video Learning Lab (IVL).  

ERIC Educational Resources Information Center

Describes a study that researched elements necessary for the design of an interactive video learning (IVL) lab for business courses. Highlights include a review of pertinent literature; guidelines for the use of an IVL lab; IVL systems integration; system specifications; hardware costs; and system software. (five references) (LRW)

Switzer, Ralph V., Jr.; Switzer, Jamie S.

1993-01-01

356

Online writing labs as sites for community engagement  

Microsoft Academic Search

This dissertation investigates the Community Writing and Education Station (CWEST), a community engagement project that partners a community adult basic literacy program with a university writing lab. The author argues that the community and university partners, the Lafayette Adult Resource Academy (LARA) and the Purdue Writing Lab, offer positive opportunities for sustainable, mutually beneficial, and collaborative engagement because they are

Jaclyn Michelle Wells

2010-01-01

357

Online Writing Labs as Sites for Community Engagement  

ERIC Educational Resources Information Center

This dissertation investigates the Community Writing and Education Station (CWEST), a community engagement project that partners a community adult basic literacy program with a university writing lab. The author argues that the community and university partners, the Lafayette Adult Resource Academy (LARA) and the Purdue Writing Lab, offer positive…

Wells, Jaclyn Michelle

2010-01-01

358

The Virtual Lab for controlling real experiments via Internet  

Microsoft Academic Search

The aim of the Virtual Lab project is to provide students access via the Internet to various experiments in control engineering, which are situated in control laboratories at several universities. Three German universities are currently developing the Virtual Lab as a network of remotely accessible laboratories in order to set up a prototype experimental environment. Students under consideration are usually

C. Rohrig; A. Jochheim

1999-01-01

359

The elusive lithosphere–asthenosphere boundary (LAB) beneath cratons  

Microsoft Academic Search

The lithosphere–asthenosphere boundary (LAB) is a first-order structural discontinuity that accommodates differential motion between tectonic plates and the underlying mantle. Although it is the most extensive type of plate boundary on the planet, its definitive detection, especially beneath cratons, is proving elusive. Different proxies are used to demarcate the LAB, depending on the nature of the measurement. Here we compare

David W. Eaton; Fiona Darbyshire; Rob L. Evans; Herman Grütter; Alan G. Jones; Xiaohui Yuan

2009-01-01

360

An Automated Lab Instructor for Simulated Science Experiments  

Microsoft Academic Search

Virtual laboratories, which allow students to interactively run simulated ex- periments, are a powerful way to teach students about science. To provide guidance to students working with virtual labs, we developed an automated lab instructor (ALI). ALI has a representation of the key relationships in the simulation model that the student should learn, and it uses this knowledge to interleave

Aaron D'Souza; Jeff Rickel; Bruno Herreros; W. Lewis Johnson

2001-01-01

361

The work smart standards process at Jefferson Lab  

NASA Astrophysics Data System (ADS)

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) has developed a set of Work Smart Standards for the Lab. The effort incorporated the Lab's performance-based contract into the Necessary and Sufficient (N&S) Standards identification process of the DOE. A rigorous protocol identified hazards in the workplace and standards that provide adequate protection of workers, public, and the environment at reasonable cost. The intensive process was a joint effort between the Lab and DOE and it required trained teams of knowledgeable experts in three fields: 1.) actual required work conditions at Jefferson Lab; 2.) laws, regulations, DOE directives and performance-based contracts; and 3.) Environmental Health and Safety (EH&S), Rad Con, and QA. The criteria for selection of the teams, the database designed and used for the process, and lessons learned are discussed.

Boyce, James R.; Prior, Sandra; Hanson, Eric; Morgan, Barbara

1997-02-01

362

Design And Non-design Labs: Does Transfer Occur?  

NSDL National Science Digital Library

This paper is the second in the series of three describing a controlled study âTransfer of scientific abilitiesâ. The study was conducted in a large-enrollment introductory physics course taught via Investigative Science Learning Environment. Its goal was to find whether designing their own experiments in labs affects students' approaches to experimental problem solving in new areas of physics and in biology, and their learning of physics concepts. This paper reports on the part of the study that assesses student work while solving an experimental problem in a physics content area not studied in class. For a quantitative evaluation of students' abilities, we used scientific abilities rubrics. We studied the students' lab reports and answers to non-traditional exam problems related to the lab. We evaluated their performance and compared it with the performance of a control group that had the same course but enrolled in non-design labs instead of design labs.

Karelina, Anna; Etkina, Eugenia; Ruibal-Villasenor, Maria; Rosengrant, David; Van Heuvelen, Alan; Hmelo-Silver, Cindy E.

2009-06-08

363

Seeing an Old Lab in a New Light: Transforming a Traditional Optics Lab into Full Guided Inquiry  

ERIC Educational Resources Information Center

This paper describes the authors' experiences transforming a "cookbook" lab into an inquiry-based investigation and the powerful effect the inquiry-oriented lab had on our students' understanding of lenses. We found the inquiry-oriented approach led to richer interactions between students as well as a deeper conceptual…

Maley, Tim; Stoll, Will; Demir, Kadir

2013-01-01

364

Evaluation of autoantibodies against oxidized LDL (oLAB) and blood antioxidant status in professional soccer players.  

PubMed

Low-density lipoproteins (LDL) are very sensitive to oxidative processes initiated by oxygen free radicals, known to be produced in large quantities during intense physical exercise. Oxidatively modified lipoprotein particles (oxLDL) are strongly atherogenic and immunogenic, as a consequence specific autoantibodies (oLAB) against oxLDL are produced by the immune system. This study was designed to evaluate the oLAB titres in professional soccer players and to find out whether the immune response to oxidative modification of LDL correlates with the antioxidant status of individual players. Eleven players volunteered to participate in an incremental treadmill running exercise to volitional fatigue twice (in October and January) during the competitive season. Venous blood samples were withdrawn before and 3 min after the cessation of the test. Serum levels of oLAB were measured by ELISA (Biomedica). Blood samples were analyzed for glutathione peroxidase, reduced glutathione, superoxide dismutase, catalase and glutathione reductase. The activity of creatine kinase (CK) and concentrations of malondialdehyde (MDA), vitamin E and retinol were determined in plasma. From 11 subjects only in 4 players, in both graded running tests, the oLAB titres were low (< 200 mU.ml(-1)). The remaining athletes presented elevated oLAB (800-1400 mU.ml(-1)). Significantly lower activities of catalase and glutathione reductase and lower concentration of alpha-tocopherol were recorded in the 2nd trial. When the data were arranged according to the oLAB titres no significant between-group differences were found in either pre- and post-test activities of antioxidant enzymes or in concentrations of antioxidants. However, significantly higher CK activities and a tendency towards more elevated plasma MDA concentrations were observed in subjects with higher oLAB levels. It seems justified to presume that high titres of antibodies against oxLDL, as evidenced in most of the players, could be accounted for by their higher in vivo susceptibility of LDL to structural modification under conditions of intensive training-induced oxidative stress, despite their apparently normal antioxidant status. PMID:15643538

K?apci?ska, B; Kempa, K; Sobczak, A; Sadowska-Krepa, E; Jagsz, S; Szo?tysek, I

2005-01-01

365

Science Sampler: Making the most of limited lab facilities  

NSDL National Science Digital Library

Despite less-than-adequate lab facilities, it is possible to come up with creative ways to provide your students with quality, lab-based activities. These strategies include the use of basket labs, progressive hand-rinsing stations, microscaling, models, and technology, which are reviewed in this article. When cutting corners, keep safety a priority. If a teacher has to make a choice between safety and hands-on science, safety should be the first consideration in all cases. If you want to try any of the strategies in this article, please run them by the proper authorities for approval.

Buczynski, Sandy

2007-02-01

366

An update on Lab Rover: A hospital material transporter  

NASA Technical Reports Server (NTRS)

The development of a hospital material transporter, 'Lab Rover', is described. Conventional material transport now utilizes people power, push carts, pneumatic tubes and tracked vehicles. Hospitals are faced with enormous pressure to reduce operating costs. Cyberotics, Inc. developed an Autonomous Intelligent Vehicle (AIV). This battery operated service robot was designed specifically for health care institutions. Applications for the AIV include distribution of clinical lab samples, pharmacy drugs, administrative records, x-ray distribution, meal tray delivery, and certain emergency room applications. The first AIV was installed at Lahey Clinic in Burlington, Mass. Lab Rover was beta tested for one year and has been 'on line' for an additional 2 years.

Mattaboni, Paul

1994-01-01

367

Servo Motor Diagramming and Wiring Lab (Instructor Guide)  

NSDL National Science Digital Library

This lab activity was completed as part of an NSF-funded externship program administered by the High Tech Workforce Initiative at Maricopa Community Colleges. Students will apply their knowledge of electrical power, servo control systems and servo motor properties to real-world scenarios. This lab is part of a servo systems course in an Industrial Operations Technology AAS program, using Amatrol curriculum and equipment. It can be done in conjunction with, or as an adaptation or replacement of, Lab Experiments 4-2 and 4-3 in the Amatrol Electro Servo Learning System materials.

Perry, Clyde

2012-12-25

368

Howard Hughes Medical Institute: BioInteractive Virtual Labs  

NSDL National Science Digital Library

The Howard Hughes Medical Institute (HHMI) has created this remarkable set of virtual laboratory activities for scholars of all ages. Designed as part of its BioInteractive series, the labs cover bacterial identification, cardiology, immunology, and even stickleback fish evolution. Each one of the labs has a tutorial, along with a set of activities designed to help scientists learn more about the biological processes involved with each one. Visitors can browse the offerings here by topic or search all of the labs for specific details.

369

An n-Bottle Lab Exercise With No Hazardous Waste  

NASA Astrophysics Data System (ADS)

n-Bottle lab exercises are popular with both students and instructors. They rely on unique patterns of reaction between substances in aqueous solution. Such exercises test observation, measurement, and deductive reasoning skills of students while presenting the puzzle, "What's in the bottle?" Traditional n-bottle exercises include precipitation reactions of environmentally hazardous substances, thereby creating a waste disposal problem. The lab exercise described here uses substances whose waste can be easily treated and disposed in the trash. Different versions of the lab are presented which pose various levels of difficulty for students.

Olander, Claire R.

1996-09-01

370

CIM Lab to Support Manufacturing Design Implementation  

NSDL National Science Digital Library

Integration of information technology in manufacturing industry in recent years has dramatically affected the delivery of instruction in manufacturing engineering programs. Inclusion of the state of art techniques and technology in a manufacturing education, particularly in the engineering field, is a key factor in the advancement of this discipline. CIM laboratory strongly supports manufacturing engineering curriculum to fulfill some of the ABET requirements for criteria: an ability to design and conduct experiments, as well as to analyze and interpret data, an ability to design a system, component, or process to meet desired needs, an ability to use the techniques, skills, and modern engineering tools necessary for engineering practice. Some key components of CIM and hierarchy of operation in a manufacturing facility are studied and correlated. They include CAD-CAM link, numerical control, automation, production and manufacturing control, control through proper communication and computer supervisory control, robotics control, process planning. A short summary of planning, implementation, and managing of a CIM environment will also be covered. The students will conduct experiments on creating a CIM environment using computer supervisory control. By conducting a hands-on CIM lab project, students have access to the relatively new technologies associated with computer integrated manufacturing, which enable them to participate in tomorrow's rapidly changing technologies and become creative problem-solvers and designers. In this project, students design a product that starts with raw materials and continue with fabricating parts, inspecting, assembling, and storing. This paper emphasizes on the technical contents as well as educational values of the projects.

Ansari, Jahangir; Ghariban, Nasser; Javaheri, Amir

2009-07-15

371

In-lab three-dimensional printing  

PubMed Central

The development of the microscope in 1590 by Zacharias Janssenby and Hans Lippershey gave the world a new way of visualizing details of morphogenesis and development. More recent improvements in this technology including confocal microscopy, scanning electron microscopy (SEM) and optical projection tomography (OPT) have enhanced the quality of the resultant image. These technologies also allow a representation to be made of a developing tissue’s three-dimensional (3-D) form. With all these techniques however, the image is delivered on a flat two-dimensional (2-D) screen. 3-D printing represents an exciting potential to reproduce the image not simply on a flat screen, but in a physical, palpable three-dimensional structure. Here we explore the scope that this holds for exploring and interacting with the structure of a developing organ in an entirely novel way. As well as being useful for visualization, 3-D printers are capable of rapidly and cost-effectively producing custom-made structures for use within the laboratory. We here describe the advantages of producing hardware for a tissue culture system using an inexpensive in-lab printer.

Partridge, Roland; Conlisk, Noel; Davies, Jamie A.

2012-01-01

372

Plasma physics and plasma electronics  

SciTech Connect

This book contains the proceedings on plasma physics and plasma electronics. Topics covered included: experiments on the L-2 stellarator, investigation of plasma radiation on the L-2 stellarator, investigation of peripheral plasma on the L-2 stellarator, and formation, evolution and explosive disruption of current sheets in plasma.

Kovrizhnykh, L.M.

1989-01-01

373

Plasma generation and plasma sources  

Microsoft Academic Search

This paper reviews the most commonly used methods for the generation of plasmas with special emphasis on non-thermal, low-temperature plasmas for technological applications. We also discuss various technical realizations of plasma sources for selected applications. This paper is further limited to the discussion of plasma generation methods that employ electric fields. The various plasmas described include dc glow discharges, either

H. Conrads; M. Schmidt

2000-01-01

374

AP Investigative labs: An inquiry-base Approach Lab 2: Mathematical Modeling: Hardy-Weinberg  

NSDL National Science Digital Library

In this lab, students will use mathematical methods to build a spreadsheet that models how a hypothetical gene pool changes from one generation to the next. The second part of the investigation asks the students to generate their own questions regarding the evolution of allele frequencies in a population. Then students will explore possible answers to those questions by applying more sophisticated computer models. This investigation also provides an opportunity for students to review concepts including natural selection as the major mechanism of evolution; the relationship among genotype, phenotype, and natural selection; and fundamentals of classic Mendelian genetics.

The College Board The College Board (The College Board;)

2012-10-23

375

Characteristics of a LaB6 hollow cathode in the glow-arc transition  

NASA Astrophysics Data System (ADS)

A new type of a simple LaB6 hollow cathode tube allows us to have very stable discharge even in the regime of the glow-arc transition, which is commonly unstable for widely used cathode materials (Ta,W). Because of the relatively large size of our device (25 mm diameter) and the low-temperature operation (~1400 K), we were able to investigate various plasma parameters of the internal plasma in detail by using a standard Langmuir probe and an ion sampling technique with a tiny orifice (1 mm diameter) to study the ion behavior near the cathode wall. Our measurements of the electron-energy distribution function F(?), the space potential ?, the mean electron energy ?Ż, the electron density ne, and the sampling ion current density Ji were carried out under various discharge conditions in order to understand the basic characteristics of hollow cathode discharge. We have found that these plasma parameters show anomalous properties in the glow-arc transition: (1) The different discharge regime of hollow cathode discharge, namely the abnormal glow, the arc, and the glow-arc transition, are clearly distinguished, and the discharge voltage Vd and Ji are a unique function of the discharge current in our hollow cathode tube. (2) A distinct high-energy component appears in the range ~1-7 eV, with two types of high-energy tails. (3) The local growth of ?Ż, the local ionization, and appearance of the space potential hill are observed near the anode and central region of the tube. These anomalous disturbances correspond to nonuniform self-heating: the nonuniform thermionic electron-emission effect along the LaB6 hollow cathode tube in the glow-arc transition.

Tonegawa, Akira; Takayama, Kazuo

1990-10-01

376

After the Lab: Learning Begins when Cleanup Starts  

ERIC Educational Resources Information Center

Having students design their own methods regarding data collection during a lab may help them formulate appropriate investigative procedures. The authors use a modified gallery walk to develop science skills. (Contains 3 figures.)

Gooding, Julia; Metz, Bill

2011-01-01

377

Looking North into Lab Metallurgy Testing Area and Enrichment Motor ...  

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

Looking North into Lab Metallurgy Testing Area and Enrichment Motor within Recycle Recovery Building - Hematite Fuel Fabrication Facility, Recycle Recovery Building, 3300 State Road P, Festus, Jefferson County, MO

378

Ames Lab 101: Danny Shechtman Returns to the Ames Laboratory  

ScienceCinema

Danny Shechtman, Ames Laboratory Scientist and winner of the Nobel Prize in Chemistry 2011, returned to the Ames Lab on February 14, 2012. During this time, the Nobel Laureate met with the press as well as ISU students.

Shechtman, Danny

2013-03-01

379

"Relativity Readiness" Using the RelLab Program.  

ERIC Educational Resources Information Center

Describes an interactive computer program (RelLab) that acts to introduce the fundamental ideas of relativity to students. Students working cooperatively investigate paradoxes of relative motion by constructing thought experiments and discussing their findings. (ZWH)

Horwitz, Paul; And Others

1994-01-01

380

Bacteriophage as instructional organisms in introductory biology labs  

PubMed Central

Designing lab exercises for introductory biology classes requires balancing the need for students to obtain results with a desire to provide unpredictable outcomes to better approximate actual research. Bacteriophage are particularly well suited for this as many species are well-understood but, with their hosts, represent a relatively complex interacting system. I have designed a seven week series of lab exercises that allow students to select bacteriophage resistant mutant hosts, isolate and sequence the corresponding receptor gene to identify the specific bacterial mutation from a large number of potential mutations. I also examined the possibility of collecting useful mutant strains for other studies. After two semesters, the lab series is working well with over 90% of students successfully isolating mutant bacteria and about half identifying the specific mutation. Here I discuss the advantages of using bacteriophage in an introductory class, the specific labs in this series and future plans.

Hyman, Paul

2014-01-01

381

Safety in the Chemical Laboratory: Hazards in a Photography Lab.  

ERIC Educational Resources Information Center

Described are case studies illustrating chemical hazards in a photography lab due to compounds containing cyanide. Suggestions for preventing problems including proper procedures, housekeeping, facilities, and ventilation are considered. (RH)

Houk, Cliff; Hart, Charles

1987-01-01

382

4. INTERIOR VIEW OF CHEMISTRY LAB LOOKING SOUTHEAST; NOTE FUME ...  

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

4. INTERIOR VIEW OF CHEMISTRY LAB LOOKING SOUTHEAST; NOTE FUME EXHAUST HOOD AT LEFT & ORIGINAL CEILING FIXTURE - Fort McCoy, Building No. T-1033, North side of South Tenth Avenue, Block 10, Sparta, Monroe County, WI

383

VIEW, LOOKING NORTHEAST, OF CHEMISTRY LAB, LOCATED ON MEZZANINE ABOVE ...  

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

VIEW, LOOKING NORTHEAST, OF CHEMISTRY LAB, LOCATED ON MEZZANINE ABOVE AND EAST OF FLOTATION CELLS. MAIN USE WAS SAMPLE ANALYSIS TO DETERMINE OPTIMUM REAGENT MIXES AND QUANTITIES. - Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, CO

384

Berkeley Lab: A Place of Wonder, Spring 2006  

SciTech Connect

Video produced in early 2006. Lawrence Berkeley National Lab has been a leader in science and engineering research for more than 75 years. The Lab conducts a wide range of scientific research with key efforts in fundamental studies of the universe, quantitative biology, nanoscience, new energy systems and environmental solutions, and the use of computing as a tool for discovery. Located on a 200 acre site in the hills above the University of California's Berkeley campus, adjacent to the San Francisco Bay, Berkeley Lab holds the distinction of being the oldest of the U.S. Department of Energy's National Laboratories. Eleven Nobel laureates are associated with Berkeley Lab. It is managed by the University of California.

None

2008-01-01

385

1. View of EPA Farm Lab Building 1506, facing south ...  

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

1. View of EPA Farm Lab Building 15-06, facing south - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

386

6. View of interior, EPA Farm Lab Building 1506 milking ...  

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

6. View of interior, EPA Farm Lab Building 15-06 milking area, facing northwest - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

387

7. View of interior, EPA Farm Lab Building 1506 milk ...  

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

7. View of interior, EPA Farm Lab Building 15-06 milk room, facing west - Nevada Test Site, Environmental Protection Agency Farm, Laboratory Building, Area 15, Yucca Flat, 10-2 Road near Circle Road, Mercury, Nye County, NV

388

Florida River Project: Sedimentary and metamorphic rocks lab  

NSDL National Science Digital Library

Most of this lab is a fairly traditional rocks-in-boxes lab on identification of sedimentary and metamorphic rocks. At the end of the lab, students practice identifying real rocks in the campus rock garden, which includes boulders of most of the bedrock units within our county. Students use GPS units to find the samples to identify (so that they can explore while the instructor answers other student questions). At each boulder, students identify the rock type, the minerals present, and the rock textures. The lab handout includes a simplified geologic map of an area that they previously visited on a field trip, and which they will use later in the semester in discussions of water samples that they collect.

Hannula, Kim

389

No CDC Lab Workers Seem Sickened by Anthrax  

MedlinePLUS

... JavaScript. No CDC Lab Workers Seem Sickened by Anthrax: Report Breakdown in safety procedures last month led ... staff Tuesday, July 1, 2014 Related MedlinePlus Page Anthrax TUESDAY, July 1, 2014 (HealthDay News) -- None of ...

390

Lab-Grown Vaginas, Noses Herald New Options for Patients  

MedlinePLUS

... please enable JavaScript. Lab-Grown Vaginas, Noses Herald New Options for Patients Regenerative surgery takes a leap ... girls suffering from a rare birth defect, creating new organs with feel and function comparable to that ...

391

Lab-on-a-Chip Analysis of Explosives.  

National Technical Information Service (NTIS)

Laboratory analysis of complex 'real-world' samples typically requires a series of time-consuming and labor-intensive steps that include sample preparation, separation, and detection. The emerging technology of microfluidic analytical devices, or 'Lab-on-...

B. C. Giordano G. E. Collins J. D. Ramsey M. P. Chatrathi

2005-01-01

392

4. VIEW SOUTHWEST COMPONENTS TEST LAB TEST BAY DETAIL SHOWING ...  

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

4. VIEW SOUTHWEST COMPONENTS TEST LAB TEST BAY DETAIL SHOWING EMERGENCY SHOWER, AND EYEWASH, AND OBSERVATION WINDOW. STORAGE TANKS ON ROOF. - Marshall Space Flight Center, East Test Area, Components Test Laboratory, Huntsville, Madison County, AL

393

Berkeley Lab: A Place of Wonder, Spring 2006  

ScienceCinema

Video produced in early 2006. Lawrence Berkeley National Lab has been a leader in science and engineering research for more than 75 years. The Lab conducts a wide range of scientific research with key efforts in fundamental studies of the universe, quantitative biology, nanoscience, new energy systems and environmental solutions, and the use of computing as a tool for discovery. Located on a 200 acre site in the hills above the University of California's Berkeley campus, adjacent to the San Francisco Bay, Berkeley Lab holds the distinction of being the oldest of the U.S. Department of Energy's National Laboratories. Eleven Nobel laureates are associated with Berkeley Lab. It is managed by the University of California.

394

21. NBS SUIT LAB. THREE GLOVES, HELMET, AND SCREW DRIVER ...  

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

21. NBS SUIT LAB. THREE GLOVES, HELMET, AND SCREW DRIVER TORQUE WRENCH FOR ASSEMBLY AND REPAIR OF BOTH. - Marshall Space Flight Center, Neutral Buoyancy Simulator Facility, Rideout Road, Huntsville, Madison County, AL

395

18. NBS SUIT LAB. OVERALL VIEW. ALL WORK TABLES WITH ...  

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

18. NBS SUIT LAB. OVERALL VIEW. ALL WORK TABLES WITH MISCELLANEOUS SUIT COMPONENTS AND SUPPLIES. TERRY WEST TO LEFT, AND PAUL DUMBACHER TO RIGHT. - Marshall Space Flight Center, Neutral Buoyancy Simulator Facility, Rideout Road, Huntsville, Madison County, AL

396

22. BUILDING 1006, BACTERIOLOGY LAB LOCATED ON FIRST FLOOR EAST ...  

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

22. BUILDING 1006, BACTERIOLOGY LAB LOCATED ON FIRST FLOOR EAST OF THE MORGUE. - Presidio of San Francisco, Letterman General Hospital, Building No. 27, Letterman Hospital Complex, Edie Road, San Francisco, San Francisco County, CA

397

Transform A Lab: Incorporate Inquiry, Equity, and Technology  

NSDL National Science Digital Library

This professional development tool provides guidelines and sugestions for revising "cookbook" labs to be more student-centered and inquiry-based with a focus on teaching to diverse students and on effectively integrating technology into lessons.

PhD Marsha L Matyas (American Physiological Society Education)

2002-07-01

398

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

399

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR AND POWER GENERATOR MOTORS, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

400

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-143). March 2005. BUILDING 51A, EXTERIOR WALL, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

401

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-006). March 2005. JACKBOLTS BETWEEN MAGNET AND MAGNET FOUNDATION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

402

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. GENERATOR MOTORS OPPOSITE SWITCHGEAR RACKS, MECHANIC SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

403

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-015). March 2005. INTERIOR WALL OF MAGNET INSIDE CENTER OF BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

404

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-087). March 2005. GENERATOR PIT AREA, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

405

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. ENTRANCE TO STAIRWAY TO TUNNEL UNDER MAIN FLOOR OF MAGNET ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

406

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-082). June 2005. CEILING AND CRANE OF BUILDING 51A, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

407

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-043). March 2005. MOUSE AT EAST TANGENT, PLUNGING MECHANISM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

408

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-077). March 2005. STUB OF SUPERHILAC BEAM, ENTERING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

409

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-066). March 2005. LOCAL INJECTOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

410

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-047). March 2005. AREA OF MAGNET REMOVAL, NORTHEAST QUADRANT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

411

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. END OF BEAMLINE LEAVING SHIELDING, MAGNET COILS IN EPOXY, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

412

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SWITCHGEAR AND POWER GENERATOR MOTORS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

413

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-158). March 2005. CONNECTION OF MAGNET ROOM CRANE TO OUTER TRACK, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

414

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-052). March 2005. LOCAL INJECTOR, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

415

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY FROM MAIN FLOOR OF 51A TO SECOND FLOOR EXTERIOR EXIT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

416

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-004). March 2005. ENTRY TO IGLOO, ILLUSTRATING THICKNESS OF IGLOO WALL, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

417

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. CENTRAL SUPPORT COLUMN EXTENDING THROUGH CRANES AND ROOF SUPPORT TRUSS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

418

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-106). March 2005. SOUTH FAN, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

419

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-107). March 2005. NORTH FAN, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

420

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. WALL AND WINDOW OVERLOOKING MAGNET ROOM, SECOND STORY OFFICE-AND-SHOPS SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

421

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. PUMP MOUNTS, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

422

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. MAGNET OF BEAMLINE, EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

423

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. SIDE OF MAGNET OF BEAMLINE EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

424

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-108). March 2005. FAN ROOM WITH STAIR TO FILTER BANKS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

425

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. BEVATRON IN CENTER OF MAGNET ROOM - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

426

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STAIRWAY FROM MAIN FLOOR TO SECOND FLOOR OF MECHANICAL WINE, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

427

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. ROOF BLOCKS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

428

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. STUB OF BEAMLINE EXITING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

429

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-026). March 2005. MOUSE AT EAST TANGENT, LOOKING TOWARD EAST TANGENT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

430

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection XBD200503-00117-089). March 2005. GENERATOR PIT AREA, CONCRETE FOUNDATION FOR EQUIPMENT MOUNTS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

431

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. FLOOR AND CEILING OF MAGNET ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

432

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-054). March 2005. LOCAL INJECTOR ENTERING SHIELDING, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

433

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. CABLE RACEWAYS, CATWALK, AND WINDOWS OF OFFICE-AND-SHOPS SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

434

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-005). March 2005. PASSAGEWAY UNDER SOUTHEAST QUADRANT, AIR DUCT OPENINGS, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

435

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-027). March 2005. MOUSE AT EAST TANGENT, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

436

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. REMNANTS OF HYDRAULIC FIXTURES, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

437

Photocopy of photograph (digital image located in LBNL Photo Lab ...  

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

Photocopy of photograph (digital image located in LBNL Photo Lab Collection, XBD200503-00117-110). March 2005. SOUTH FAN FROM MEZZANINE, FAN ROOM, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

438

Photocopy of photograph (original negative located in LBNL Photo Lab ...  

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

Photocopy of photograph (original negative located in LBNL Photo Lab Collection). March 2005. GENERATOR ROOM, MECHANICAL SECTION, BEVATRON - University of California Radiation Laboratory, Bevatron, 1 Cyclotron Road, Berkeley, Alameda County, CA

439

Plasma Medicine  

NASA Astrophysics Data System (ADS)

Foreword R. Satava and R. J. Barker; Part I. Introduction to Non-equilibrium Plasma, Cell Biology, and Contamination: 1. Introduction M. Laroussi; 2. Fundamentals of non-equilibrium plasmas M. Kushner and M. Kong; 3. Non-equilibrium plasma sources M. Laroussi and M. Kong; 4. Basic cell biology L. Greene and G. Shama; 5. Contamination G. Shama and B. Ahlfeld; Part II. Plasma Biology and Plasma Medicine: 6. Common healthcare challenges G. Isbary and W. Stolz; 7. Plasma decontamination of surfaces M. Kong and M. Laroussi; 8. Plasma decontamination of gases and liquids A. Fridman; 9. Plasma-cell interaction: prokaryotes M. Laroussi and M. Kong; 10. Plasma-cell interaction: eukaryotes G. Isbary, G. Morfill and W. Stolz; 11. Plasma based wound healing G. Isbary, G. Morfill and W. Stolz; 12. Plasma ablation, surgery, and dental applications K. Stalder, J. Woloszko, S. Kalghatgi, G. McCombs, M. Darby and M. Laroussi; Index.

Laroussi, M.; Kong, M. G.; Morfill, G.; Stolz, W.

2012-05-01

440

Franklin and Electrostatics - Ben Franklin as my Lab Partner  

NSDL National Science Digital Library

This unique resource integrates the scientific work of Ben Franklin with lab procedures for replicating historic experiments in secondary classrooms. Writings and historical observations are woven into lab descriptions to give students a better insight into Franklin's work. Videos of some of the experiments are also provided. This introductory section describes the history of Franklin's work, and provides details of the equipment that will be used for the entire unit.

Morse, Robert

2006-04-06

441

The appropriate use of microcomputers in undergraduate physics labs  

NSDL National Science Digital Library

In undergraduate physics lab courses, microcomputers can provide a powerful increase in measurement capabilities over traditional physics instrumentation. However, the implementation of computerized labs must be carefully designed to prevent the machine from obscuring the physics of the experiment. When appropriately used, the power of the computer can help to illuminate the physics of an experiment rather than merely to automate data collection and analysis. Guidelines are presented, along with several experiments, to show the appropriate use of microcomputers in a teaching environment.

Briotta, D. A.; Seligman, P. F.; Smith, P. A.; Spencer, C. D.

2005-10-11

442

LabNet: Toward a community of practice  

Microsoft Academic Search

It is common currency that science education in America isn't working well enough. We are failing to excite the curiosity of young minds in the great questions of the physical universe. LabNet—a prototype teacher-support project developed by TERC, and funded by the National Science Foundation, is dedicated to addressing this issue. The first three year phase of LabNet began in

Richard Ruopp

1993-01-01

443

Analyzing shotgun proteomic data with PatternLab for proteomics  

PubMed Central

PatternLab for proteomics is a one-stop-shop computational environment for analyzing shotgun proteomic data. Its modules provide means to pinpoint proteins / peptides that are differentially expressed, those that are unique to a state, and can also cluster the ones that share similar expression profiles in time-course experiments as well as help in interpreting results according to Gene Ontology. PatternLab is user-friendly, simple, and provides a graphical user interface.

Carvalho, Paulo C; Yates, John R; Barbosa, Valmir C

2010-01-01

444

Agent mediated electronic commerce research at Hewlett Packard Labs, Bristol  

Microsoft Academic Search

Agent technology is a key enabling component in bringing about Hewlett-Packard e-services vision, and for that reason, HP Labs is making significant investments in research in this area. Work on agent technology at HP labs includes agent-mediated B2B e-commerce, distributed agent-based personalization, agent-based trading of Internet bandwidth, automated auction design, mobile agents, user profiling and FIPA standardization activities, among other

Chris Preist

2001-01-01

445

Activities at iThemba LABS Cyclotron Facilities  

NASA Astrophysics Data System (ADS)

iThemba Laboratory for Acceleratory Based Sciences (iThemba LABS) is a multi-disciplinary cyclotron facility. Chief among its activities is the operation of a k=200 sepparate sector cyclotron (SSC) which provides proton beams of energies up to 200 MeV. These beams are used for fundamental nuclear physics research in the intermediate energy region, isotope production and medical physics applications. Details on developments regarding the new flagship project at iThemba LABS are also presented.

Bark, R. M.; Cornell, J.; Lawrie, J. J.; Vilakazi, Z. Z.

446

Place Lab: Device Positioning Using Radio Beacons in the Wild  

Microsoft Academic Search

Location awareness is an important capability for mobile computing. Yet inexpensive, pervasive positioning—a requirement for wide-scale adoption of location-aware computing—has been elusive. We demonstrate a radio beacon-based approach to location, called Place Lab, that can overcome the lack of ubiquity and high-cost found in existing location sensing approaches. Using Place Lab, commodity laptops, PDAs and cell phones estimate their position

Anthony Lamarca; Yatin Chawathe; Sunny Consolvo; Jeffrey Hightower; Ian E. Smith; James Scott; Timothy Sohn; James Howard; Jeff Hughes; Fred Potter; Jason Tabert; Pauline Powledge; Gaetano Borriello; Bill N. Schilit

2005-01-01

447

Atomic Spectroscopy in a Project-Based Lab  

NSDL National Science Digital Library

This article, published in the "ABCs of Teaching Analytical Science" series of the journal Analytical and Bioanalytical Chemistry, describes a project-based lab in which students investigate the distribution of Pb and As (from pesticides) in a contaminated apple orchard. Students have complete control of the lab, from designing a sampling strategy to using the primary literature to develop procedures for extracting the analytes and for their subsequent analysis by ICP-AES or ICP-MS.

Amarasiriwardena, Dulasiri

2011-06-09

448

University of Texas: Allen J. Bard Lab of Electrochemistry  

NSDL National Science Digital Library

Allen J. Bard's Lab of Electrochemistry at the University of Texas is interested in "the application of electrochemical methods to the study of chemical problems." The website offers lengthy lists of Bard's journal articles, patents, books, and other publications. Users can discover the lab's current research projects dealing with ultra-high-resolution electrochemistry; photoelectrochemistry at semiconductors; and electrochemical studies of biological systems, organic species, and inorganic species. Students and educators can find a link to an interactive Periodic Table of Elements.

449

Link Analysis in the Mission Planning Lab  

NASA Technical Reports Server (NTRS)

The legacy communications link analysis software currently used at Wallops Flight Facility involves processes that are different for command destruct, radar, and telemetry. There is a clear advantage to developing an easy-to-use tool that combines all the processes in one application. Link Analysis in the Mission Planning Lab (MPL) uses custom software and algorithms integrated with Analytical Graphics Inc. Satellite Toolkit (AGI STK). The MPL link analysis tool uses pre/post-mission data to conduct a dynamic link analysis between ground assets and the launch vehicle. Just as the legacy methods do, the MPL link analysis tool calculates signal strength and signal- to-noise according to the accepted processes for command destruct, radar, and telemetry assets. Graphs and other custom data are generated rapidly in formats for reports and presentations. STK is used for analysis as well as to depict plume angles and antenna gain patterns in 3D. The MPL has developed two interfaces with the STK software (see figure). The first interface is an HTML utility, which was developed in Visual Basic to enhance analysis for plume modeling and to offer a more user friendly, flexible tool. A graphical user interface (GUI) written in MATLAB (see figure upper right-hand corner) is also used to quickly depict link budget information for multiple ground assets. This new method yields a dramatic decrease in the time it takes to provide launch managers with the required link budgets to make critical pre-mission decisions. The software code used for these two custom utilities is a product of NASA's MPL.

McCarthy, Jessica A.; Cervantes, Benjamin W.; Daugherty, Sarah C.; Arroyo, Felipe; Mago, Divyang

2011-01-01

450

Proton Form Factor Measurements at Jefferson Lab  

SciTech Connect

In two experiments at Jefferson Lab in Hall A, the first one in 1998 and the second in 2000, the ratio of the electromagnetic form factors of the proton was obtained by measuring P{sub t} and P{sub ell}, the transverse and longitudinal recoil proton polarization components, respectively, in {rvec e}p {yields} e{rvec p}; the ratio G{sub E{sub p}}/G{sub M{sub p}} is proportional to P{sub t}/P{sub {ell}}. Simultaneous measurement of P{sub t} and P{sub {ell}} provides good control of the systematic uncertainty. The first measurement of G{sub E{sub p}}/G{sub M{sub p}} ratio was made to Q{sup 2} = 3.5 GeV{sup 2} and the second measurement to Q{sup 2} = 5.6 GeV{sup 2}. The results from these two experiments indicate that the ratio scales like 1/Q{sup 2}, in stark contrast with cross section data analyzed by the Rosenbluth separation method which gives a constant value for this ratio. The incompatibility of the recoil polarization results with most of the Rosenbluth separation results appears now well established above Q{sup 2} of about 3 GeV{sup 2}. The consensus at the present time is that the interference of the two-photon exchange with the Born term, which had been deemed negligible until recently, might explain the discrepancy between the results of the two techniques; the possibility that the discrepancy is due to incomplete radiative correction has also been recently discussed.

Charles Perdrisat; Vina Punjabi

2004-09-27

451

Upgrades at the Propulsion Systems Lab (PSL)  

NASA Technical Reports Server (NTRS)

The Propulsion Systems Lab (PSL) does ground testing on full size air breathing engines. These engines range from those on commercial airplanes to fighter jets. At the PSL, engineers receive test requirements from customers and put together the necessary instrumentation, data systems, power requirements, electrical control valves, and engine controls. The engineers are also responsible for facility maintenance, repairs and upgrades. There are four major sections at the PSL; the Test floor, the Data room, the Control room and, the WDPF room. On the test floor are two test cells, cell #3 and cell #4. It is within these cells that the actual engine resides for ground testing. The cells, once sealed and taken up to altitude, are capable of reaching engine inlet temperatures of 1000 F to -90 F, and various atmospheric pressures. The engine, when operational, takes in air and gives out exhaust of up to 2000 F. The exhaust is led to another section of the cell where it is cooled to 150 F before finally redirected to the appropriate disposer. Temperature and pressure transducers detect the conditions within the cell and transmit them to the data room where the results are captured, processed, analyzed, and translated to a more comprehensive language. This is made possible with the aid of several programmable logic controllers (PLCs) and instrumentation and control systems. The translated data is then sent, via the LAN, to the control room where the results can be viewed on monitors by the engineers and customers. From the control room, the test cell conditions can be changed whenever desired. During tests, a lot takes place in the facility. The WDPF control system monitors and controls all facility parameters. This summer, I will assist the engineers; on an upgrade to the facility's distributed control and dynamic data system, in preparation for an engine test that will begin in September, the installation of control systems and various miscellaneous projects around the PSL.

Audu, Abdullahi M.

2004-01-01

452

Introducing Space Physics: Using Online Data and Simulation Resources in an Undergraduate Physics Lab Examining the Magnetopause  

NASA Astrophysics Data System (ADS)

For a variety of reasons, physics students are often not exposed to space physics in their undergraduate coursework. The emergence of online data and computation resources provides new opportunities to bring space physics into the undergraduate curriculum. We will present the results of our experience using online resources in a sophomore/junior lab that focuses on the location of the Earth's magnetopause. The magnetopause's location is an ideal topic to use as an introduction to the magnetosphere and space physics because it can be explained without the need to resort to very much plasma physics. At the simplest level the location can be viewed as a pressure balance between the dynamic pressure of the solar wind and the magnetic pressure of the magnetosphere. This simple model can be used to motivate more complex empirical models and simulations which are based in plasma physics. So students can start at a basic level, but then apply advanced tools to the problem at hand. In our lab, students examine the magnetopause location using simulation results from BAT-R-US global MHD code run at NASA's Community Coordinated Modeling Center. The students also use spacecraft data from CDAWEB to find the magnetopause crossings in data from several spacecraft. This lab has been a challenge for students not only because the space physics is unfamiliar, but also because they are not used to working with complex data sets where the results are open to interpretation. In our view, this lab has been a success because it introduces our students to space physics, online data resources, simulations, and research techniques in an accessible way.

Crumley, J. P.; Palczewski, A. D.; Kaster, S. A.

2008-12-01

453

Computer lab reservations: improving how to manage multiple reservation life cycles  

Microsoft Academic Search

Since 2003, computer lab reservations during the summer semester have been growing more quickly than resources for managing computer lab reservations at the University of California, Berkeley. In the past one could easily manage the varying life cycles of lab reservations between May and August using notes and a paper calendar: the request, the lab's response to technical needs such

Nicole M. Sattler

2006-01-01

454

Advanced Propulsion Physics Lab: Eagleworks Investigations  

NASA Technical Reports Server (NTRS)

Eagleworks Laboratory is an advanced propulsions physics laboratory with two primary investigations currently underway. The first is a Quantum Vacuum Plasma Thruster (QVPT or Q-thrusters), an advanced electric propulsion technology in the development and demonstration phase. The second investigation is in Warp Field Interferometry (WFI). This is an investigation of Dr. Harold "Sonny" White's theoretical physics models for warp field equations using optical experiments in the Electro Optical laboratory (EOL) at Johnson Space Center. These investigations are pursuing technology necessary to enable human exploration of the solar system and beyond.

Scogin, Tyler

2014-01-01

455

Determination of Calcium, Magnesium, and Sodium in Wastewater by Inductively Coupled Plasma Spectroscopy.  

National Technical Information Service (NTIS)

Inductively coupled plasma-atomic emission spectroscopy (ICP-AES) has been used for the determination of calcium, magnesium, and sodium in industrial wastewater samples. The method developed employs the Qualitative mode of a Leeman Labs Plasma-Spec III In...

B. S. Barnes A. F. Volesky

1988-01-01

456

The Influence of Tablet PCs on Studentsâ Use of Multiple Representations in Lab Reports  

NSDL National Science Digital Library

This study examined how different tools influenced studentsâ use of representations in the Physics laboratory. In one section of a lab course, every student had a Tablet PC that served as a digital-ink based lab notebook. Students could seamlessly create hand-drawn graphics and equations, and write lab reports on the same computer used for data acquisition, simulation, and analysis. In another lab section, students used traditional printed lab guides, kept paper notebooks, and then wrote lab reports on regular laptops. Analysis of the lab reports showed differences between the sectionsâ use of multiple representations, including an increased use of diagrams and equations by the Tablet users.

Guelman, Clarisa B.; De Leone, Charles; Price, Edward

2010-01-19

457

Plasma universe  

NSDL National Science Digital Library

This single-page reading underlines how abundant plasmas are in the universe. The reading, which is the final page in a tutorial about the plasma phase of matter, points out that understanding plasma is central to understanding what happens in the universe. Through space technologies, researchers have been able to study plasmas in areas like those shown in the images that illustrate this reading. One of the images shows plasma loops on the Sun. Copyright 2005 Eisenhower National Clearinghouse

Institute, Space S.

2005-01-01

458

MACMA: a Virtual Lab for Plate Tectonics  

NASA Astrophysics Data System (ADS)

MACMA (Multi-Agent Convective MAntle) is a tool developed to simulate evolutive plate tectonics and mantle convection in a 2-D cylindrical geometry (Combes et al., 2012). The model relies mainly on a force balance to compute the velocity of each plate, and on empirical rules to determine how plate boundaries move and evolve. It includes first-order features of plate tectonics: (a) all plates on Earth do not have the same size, (b) subduction zones are asymmetric, (c) plates driven by subducting slabs and upper plates do not exhibit the same velocities, and (d) plate boundaries are mobile, can collide, merge and disappear, and new plate boundaries can be created. The MACMA interface was designed to be user-friendly and a simple use of the simulator can be achieved without any prerequisite knowledge in fluid dynamics, mantle rheology, nor in numerical methods. As a preliminary study, the simulator was used by a few students from bachelor's degree to master's degree levels. An initial configuration for plate tectonics has to be created before starting a simulation: the number and types of plate boundaries (ridge, subduction, passive margins) has to be defined and seafloor ages must be given. A simple but interesting exercise consists in letting students build such an initial configuration: they must analyze a map of tectonic plates, choose a 2-D section and examine carefully a map of seafloor ages. Students mentioned that the exercise made them realize that the 3-D spherical structure of plate tectonics does not translate directly in a simple 2-D section, as opposed to what is usually shown in books. Physical parameters: e.g. mantle viscosity, number of layers to consider in the mantle (upper and lower mantle, possible asthenosphere), initial time and mantle temperature, have to be chosen, and students can use this virtual lab to see how different scenarios emerge when parameters are varied. Very importantly, the direct visualization of the mobility of plate boundaries is a feature that clearly seems interesting to students. They are used to see dynamic representations of continental drift, but this does not include the dynamics of the oceanic lithosphere and the corresponding fluctuations in seafloor age distribution. The 2-D geometry of the simulator is a simplification that actually brings a clearer view of plate boundary creations, migrations, and collisions, together with global plate tectonics reorganization events.

Grigne, C.; Combes, M.; Tisseau, C.

2013-12-01

459

Design of inquiry-oriented science labs: impacts on students' attitudes  

Microsoft Academic Search

Background: Changes in lab style can lead to differences in learning. Two inquiry-oriented lab styles are guided inquiry (GI) and problem-based (PB). Students’ attitudes towards lab are important to consider when choosing between GI and PB styles during curriculum design.Purpose: We examined the degree to which lab experiences are explained by a GI or a PB lab style vs. students’

J. M. Baseya; C. D. Francis

2011-01-01

460

Using LabVIEW for Complete Systems Control of an ECR Thin Film Deposition System.  

NASA Astrophysics Data System (ADS)

ECR produces a high-density plasma maintainable at low pressure, typically 10-2 Torr, which increases ion directionality and mean free path, improving deposition rate and precision. The ECR deposition system requires that its gas flow control, magnets, 2.45 GHz source, and other components all work in concert. Operating the system requires a user to constantly compensate for the dynamics of the system, such as Argon gas pressure and magnetic field. This is an inconsistent method and requires the constant presence of an experienced operator. Using LabVIEW, all of the individual components of the ECR deposition system can be linked and ultimately automated. A single LabVIEW VI is being used to control microwave power, magnet current, target bias voltage, vacuum and compressed gas valve position, chamber pressure, and robotics commands. The VI takes many factors into account simultaneously such as chamber pressure, ion current and spectroscopic data in order to make decisions about the system state. The use of complete software control also reduces complex routines such as robotics and startup procedures to a mouse click. Details of the feedback based logic will be discussed further. Data on copper deposition rates, uniformity and spectroscopic data will also be presented.

Bentzley, Brandon; Post-Zwicker, Andrew

2006-10-01

461

Moving an eInnovation from a Living Lab to the real world Politically savvy framing in ITAIDE's Beer Living Lab  

Microsoft Academic Search

Living Labs have been established as real-life pilot settings in which IT innovations are developed and validated. Once these steps have been completed, these innovations are ready to be moved out of the Living Lab environment into the real world. In many cases Living Lab innovations require not only technological but also socio-political and institutional changes to be made in

Eveline van Stijn; Boriana Rukanova; Anthony Wensley; Yao-Hua Tan

462

Transforming the advanced lab: Part I - Learning goals  

NSDL National Science Digital Library

Within the physics education research community relatively little attention has been given to laboratory courses, especially at the upper-division undergraduate level. As part of transforming our senior-level Optics and Modern Physics Lab at the University of Colorado Boulder we are developing learning goals, revising curricula, and creating assessments. In this paper, we report on the establishment of our learning goals and a surrounding framework that have emerged from discussions with a wide variety of faculty, from a review of the literature on labs, and from identifying the goals of existing lab courses. Our goals go beyond those of specific physics content and apparatus, allowing instructors to personalize them to their contexts. We report on four broad themes and associated learning goals: Modeling (math-physics-data connection, statistical error analysis, systematic error, modeling of engineered "black boxes"), Design (of experiments, apparatus, programs, troubleshooting), Communication, and Technical Lab Skills (computer-aided data analysis, LabVIEW, test and measurement equipment).

Zwickl, Benjamin M.; Finkelstein, Noah D.; Lewandowski, H. J.

2012-04-26

463

Promoting Metacognition in Introductory Calculus-based Physics Labs  

NASA Astrophysics Data System (ADS)

In the Western Washington University physics department, a project is underway to develop research-based laboratory curriculum for the introductory calculus-based course. Instructional goals not only include supporting students' conceptual understanding and reasoning ability, but also providing students with opportunities to engage in metacognition. For the latter, our approach has been to scaffold reflective thinking with guided questions. Specific instructional strategies include analysis of alternate reasoning presented in fictitious dialogues and comparison of students' initial ideas with their lab group's final, consensus understanding. Assessment of student metacognition includes pre- and post- course data from selected questions on the CLASS survey, analysis of written lab worksheets, and student opinion surveys. CLASS results are similar to a traditional physics course and analysis of lab sheets show that students struggle to engage in a metacognitive process. Future directions include video studies, as well as use of additional written assessments adapted from educational psychology.

Grennell, Drew; Boudreaux, Andrew

2010-10-01

464

First results on GlioLab/GlioSat Precursors Missions  

NASA Astrophysics Data System (ADS)

Since 2009 GAUSS group is involved in a joint collaboration with Morehead State University (MSU) Space Science Center and IRCCS Casa Sollievo della Sofferenza (CSS) research labs with the aim to design a biomedical project in order to investigate if the combined effects of microgravity conditions and ionizing radiation increase or decrease the survival rate of cancer cells. The biological sample consists of Glioblastoma cancer cell line ANGM-CSS. Glioblastoma is a kind of cancer that can be treated after surgery only by radiotherapy using ionizing radiation. This treatment, anyway, results in a very low survival rate. This project uses different university space platforms: a CubeLab, named GlioLab, on board the International Space Station and the university microsatellite UniSat-5 designed by GAUSS. In addition a GlioLab/GlioSat precursor experiment has already flown two times with the Space Shuttle during the missions STS-134 and STS-135. The phase 0 or the precursor of GlioLab uses a COTS system, named Liquid Mixing Apparatus (LMA), to board the biological samples inside the Space Shuttle for thirty day . The LMA allows to board liquids inside a vial but is not equipped with environment control system. After landing the samples were investigated by researchers at CSS in Italy and at MSU in Kentucky. This paper deals with the experimental set up and the results obtained during the STS-134 and STS-135 missions and with the new evidences on the behavior of this kind of cancer. In particular the results obtained on the DNA analysis give a confirmation of the original idea of GLioLab/Gliosat project justifying the development of the two systems.

Cappelletti, Chantal; Notarangelo, Angelo; Demoss, Darrin; Carella, Massimo

2012-07-01

465

eCAT: Online electronic lab notebook for scientific research  

PubMed Central

Background eCAT is an electronic lab notebook (ELN) developed by Axiope Limited. It is the first online ELN, the first ELN to be developed in close collaboration with lab scientists, and the first ELN to be targeted at researchers in non-commercial institutions. eCAT was developed in response to feedback from users of a predecessor product. By late 2006 the basic concept had been clarified: a highly scalable web-based collaboration tool that possessed the basic capabilities of commercial ELNs, i.e. a permissions system, controlled sharing, an audit trail, electronic signature and search, and a front end that looked like the electronic counterpart to a paper notebook. Results During the development of the beta version feedback was incorporated from many groups including the FDA's Center for Biologics Evaluation & Research, Uppsala University, Children's Hospital Boston, Alex Swarbrick's lab at the Garvan Institute in Sydney and Martin Spitaler at Imperial College. More than 100 individuals and groups worldwide then participated in the beta testing between September 2008 and June 2009. The generally positive response is reflected in the following quote about how one lab is making use of eCAT: "Everyone uses it as an electronic notebook, so they can compile the diverse collections of data that we generate as biologists, such as images and spreadsheets. We use to it to take minutes of meetings. We also use it to manage our common stocks of antibodies, plasmids and so on. Finally, perhaps the most important feature for us is the ability to link records, reagents and experiments." Conclusion By developing eCAT in close collaboration with lab scientists, Axiope has come up with a practical and easy-to-use product that meets the need of scientists to manage, store and share data online. eCAT is already being perceived as a product that labs can continue to use as their data management and sharing grows in scale and complexity.

2009-01-01

466

Why Plasma?  

Microsoft Academic Search

The waste that society generates can be converted into various energy products using new conversion technology. This article highlights the benefits of one promising conversion technology known as plasma gasification, which can be used to generate clean fuels, chemicals and clean electric power. A comparison of plasma gasification to conventional gasification technology is also discussed. Implementation of plasma gasification has

Jeffrey E. Surma

2010-01-01

467

Plasma Physics  

Microsoft Academic Search

Beginning at an introductory level, this text presents a thorough treatment of plasma physics, including an extensive discussion of its applications in thermonuclear fusion research. A novel feature of this book is its comprehensive description of the various concepts and formulas widely used in fusion theory based on the fundamental equations of the plasma fluid. The physics of fusion plasmas

Kyoji Nishikawa; Masashiro Wakatani

1990-01-01

468

RiskLab - a joint Teaching Lab on Hazard and Risk Management  

NASA Astrophysics Data System (ADS)

In the future natural disasters are expected to increase due to climatic changes that strongly affect environmental, social and economical systems. For this reason and because of the limited resources, governments require analytical risk analysis for a better mitigation planning. Risk analysis is a process to determine the nature and extent of risk by estimating potential hazards and evaluating existing conditions of vulnerability that could pose a potential threat or harm to people, property, livelihoods and environment. This process has become a generally accepted approach for the assessment of cost-benefit scenarios; originating from technical risks it is being applied to natural hazards for several years now in Switzerland. Starting from these premises "Risk Lab", a joint collaboration between the Institute of Earth Sciences of the University of Applied Sciences of Southern Switzerland and the Institute for Economic Research of the University of Lugano, has been started in 2006, aiming to become a competence centre about Risk Analysis and Evaluation. The main issue studied by the lab concerns the topic "What security at what price?" and the activities follow the philosophy of the integral risk management as proposed by PLANAT, that defines the process as a cycle that contains different and interrelated phases. The final aim is to change the population and technician idea about risk from "defending against danger" to "being aware of risks" through a proper academic course specially addressed to young people. In fact the most important activity of the laboratory consists in a degree course, offered both to Engineering and Architecture students of the University of Applied Sciences of Southern Switzerland and Economy Students of the University of Lugano. The course is structured in two main parts: an introductive, theoretical part, composed by class lessons, where the main aspects of natural hazards, risk perception and evaluation and risk management are presented and analyzed, and a second part, composed by practical activities, where students can learn specific statistical methods and test and use technical software. Special importance is given to seminars held by experts or members of Civil Protection and risk management institutes. Excursions are often organized to directly see and study practical case studies (Eg. The city of Locarno and the lake Maggiore inundations). The course is organized following a "classical" structure (it's mainly held in a class or in an informatics lab), but students can also benefit from a special web portal, powered by "e.coursers" , the official USI/SUPSI Learning Management System , where they can find issues and documents about natural hazards and risk management. The main pedagogical value is that students can attend a course which is entirely devoted to dealing with natural and man-made hazards and risk, allowing them to resume geological, space planning and economic issues and to face real case studies in a challenging and holistic environment. The final aim of the course is to provide students an useful and integrated "toolbox", essential to cope with and to resolve the overwhelming problems due to vulnerability and danger increase of the present-day society. The course has by now reached the third academic year and the initial results are encouraging: beyond the knowledge and expertise acquired, the graduate students, that are now for the most part working in engineering studies or private companies, have shown to have acquired a mentality devoted to understanding and managing risk. REFERENCES PLANAT HTTP://WWW.CENAT.CH/INDEX.PHP?USERHASH=79598753&L=D&NAVID=154 ECOURSES HTTP://CORSI.ELEARNINGLAB.ORG/ NAHRIS HTTP://WWW.NAHRIS.CH/

Baruffini, Mi.; Baruffini, Mo.; Thuering, M.

2009-04-01

469

Innovative Use of a Classroom Response System During Physics Lab  

NASA Astrophysics Data System (ADS)

More and more physics instructors are making use of personal/classroom response systems or ``clickers.'' The use of clickers to engage students with multiple-choice questions during lecture and available instructor resources for clickers have been well documented in this journal.1-4 Newer-generation clickers, which I refer to as classroom response systems (CRS), have evolved to accept numeric answers (such as 9.81) instead of just single ``multiple-choice'' entries (Fig. 1). This advancement is available from most major clicker companies and allows for a greater variety of engaging questions during lecture. In addition, these new ``numeric ready'' clickers are marketed to be used for student assessments. During a test or quiz, students' answers are entered into their clicker instead of on paper or Scantron® and immediately absorbed by wireless connection into a computer for grading and analysis. I recognize the usefulness and benefit these new-generation CRSs provide for many instructors. However, I do not use my CRS in either of the aforementioned activities. Instead, I use it in an unconventional way. I use the CRS to electronically capture students' lab data as they are performing a physics lab (Fig. 2). I set up the clickers as if I were going to use them for a test, but instead of entering answers to a test, my students enter lab data as they collect it. In this paper I discuss my use of a classroom response system during physics laboratory and three benefits that result: 1) Students are encouraged to ``take ownership of'' and ``have integrity with'' their physics lab data. 2) Students' measuring and unit conversion deficiencies are identified immediately during the lab. 3) The process of grading students' labs is simplified because the results of each student's lab calculations can be pre-calculated for the instructor using a spreadsheet. My use of clickers during lab can be implemented with most clicker systems available to instructors today. The CRS I use is the eInstruction's® Classroom Performance System™ (CPS™).5 (Fig. 1)

Walgren, Jay

2011-01-01

470

University of New Hampshire InterOperability Lab  

NSDL National Science Digital Library

The InterOperability Lab (IOL) at the University of New Hampshire helps the vendor community "verify the interoperability and/or conformance of their computer communications products." Comprised of seventeen consortiums ranging from Gigabit Ethernet to Voice Over Broadband, the lab has a wide range of resources available on its Web site. Specifically, there is a large assortment of tutorials about various network technologies and standards; some are direct from industry sources, while others are products of the IOL. There are also several test suites that can be used to evaluate the functionality of computer communications equipment.

471

NASA Dryden: Flight Loads Lab Capabilities and Mass Properties Testing  

NASA Technical Reports Server (NTRS)

This presentation covers the basic capabilities of the Dryden Flight Loads Lab. It also covers in detail the mass properties capabilities of the loads lab, focusing on the recent mass properties testing of the X-48B, and the recent tests of the Dynamic Inertia Measurement method (DIMM). Presentation focuses on the test methods and issues discovered during the mass properties testing of the X-48B leading to the requirement of new instrumentation on all conventional mass properties testing. Presentation also focuses on development of DIMM for replacement of conventional mass properties tests.

Wolfe, David Michael; Bakalyar, John A.

2011-01-01

472

IT Guru Lab 3: Hubs, Bridges, and Switches  

NSDL National Science Digital Library

In this lab for IT Guru: Academic Edition, students look at the characteristics and differences between hubs, bridges and switches. They learn how they work, how they are different, and why they are used in different instances. The lab will also discuss broadcast and collision domains, and layers 1 and 2 of the OSI reference model. Students create an IT Guru scenario to demonstrate the differences between hubs and switches.The tutorial was developed by CSUMB Computer Science and Information Technology student Kevan Riley.

Riley, Kevan

2012-07-12

473

Concept and organization of a clinical gene therapy lab.  

PubMed

Designing a dedicated clinical facility to meet the needs of existing and developing Gene Therapy Protocols presents a unique challenge. Here, we review some of the issues we faced and share some of our design concepts. An optimal Clinical Gene Therapy Lab must meet relevant regulatory guidelines, interface with other hospital labs as well as the clinic and patient care areas, be efficient and flexible in utilization of space, and have the potential to meet future needs without continual renovation. As clinical science expands to include more gene transfer approaches, specific laboratory areas for this type of work will become increasingly necessary. PMID:7593261

Kittler, E L; Quesenberry, P J

1995-08-01

474

Soil Characterization: Lab Measurements (38:10 min)  

NSDL National Science Digital Library

This video provides step-by-step instructions for collecting soil samples in the field, and for analyzing and storing soil samples in the lab. Procedures for determining the bulk density, particle density, particle size distribution, fertility, and pH of a soil are demonstrated. The resource includes a video and a written transcript, and is supported by the Soil Characterization, Lab Measurement Protocols in the GLOBE Teacher Guide. This is one of five videos about soils in the 24-part instructional video series describing scientific protocols used by GLOBE (Global Learning and Observation to Benefit the Environment) a worldwide, hands-on, K-12 school-based science education program.

475

40 Inquiry Exercises for the College Biology Lab  

NSDL National Science Digital Library

Available March 2009. Drawing from the author's own work as a lab developer, coordinator, and instructor, this one-of-a-kind text for college biology teachers uses the inquiry method in presenting 40 different lab exercises that make complicated biology subjects accessible to major and nonmajors alike. The volume offers a review of various aspects of inquiry, including teaching techniques, and covers 16 biology topics, including DNA isolation and analysis, properties of enzymes, and metabolism and oxygen consumption. Student and teacher pages are provided for each of the 16 topics.

Johnson, A. D.

2009-03-01

476

Giant Electromagnet Move at Brookhaven Lab, June 22, 2013  

SciTech Connect

On Saturday, June 22, 2013, a 50-foot-wide, circular electromagnet began its 3,200-mile land and sea voyage from Brookhaven National Laboratory in New York to a new home at Fermilab in Illinois. There, scientists will use it to study the properties of muons, subatomic particles that live only 2.2 millionths of a second, and the results could open the door to new realms of particle physics. In the first part of the move, Emmert International and a team of Fermilab and Brookhaven Lab scientists and engineers transported the electromagnet across the Brookhaven Lab site to a staging area by its main gate.

None

2013-06-22

477

Remembering the early days of the Met Lab  

SciTech Connect

The Met Lab was set up by the war-time Manhattan District, US Corp of Engineers to (i) find a system using normal uranium in which a chain reaction would occur; (ii) to show that if such a chain reaction did occur, it would be possible to separate plutonium chemically from the uranium matrix and the fission products formed in the chain reactions; and (iii) to prepare plans for the large-scale production of plutonium. Chemistry Section C-1 of the Met Lab was assigned the responsibility for developing separation methods for plutonium production on the industrial scale. This report describes some aspects of daily life in Section C-1.

Katz, J.J.

1990-01-01

478

EarthLabs - Investigating Hurricanes: Earth's Meteorological Monsters  

NASA Astrophysics Data System (ADS)

Earth science is one of the most important tools that the global community needs to address the pressing environmental, social, and economic issues of our time. While, at times considered a second-rate science at the high school level, it is currently undergoing a major revolution in the depth of content and pedagogical vitality. As part of this revolution, labs in Earth science courses need to shift their focus from cookbook-like activities with known outcomes to open-ended investigations that challenge students to think, explore and apply their learning. We need to establish a new model for Earth science as a rigorous lab science in policy, perception, and reality. As a concerted response to this need, five states, a coalition of scientists and educators, and an experienced curriculum team are creating a national model for a lab-based high school Earth science course named EarthLabs. This lab course will comply with the National Science Education Standards as well as the states' curriculum frameworks. The content will focus on Earth system science and environmental literacy. The lab experiences will feature a combination of field work, classroom experiments, and computer access to data and visualizations, and demonstrate the rigor and depth of a true lab course. The effort is being funded by NOAA's Environmental Literacy program. One of the prototype units of the course is Investigating Hurricanes. Hurricanes are phenomena which have tremendous impact on humanity and the resources we use. They are also the result of complex interacting Earth systems, making them perfect objects for rigorous investigation of many concepts commonly covered in Earth science courses, such as meteorology, climate, and global wind circulation. Students are able to use the same data sets, analysis tools, and research techniques that scientists employ in their research, yielding truly authentic learning opportunities. This month-long integrated unit uses hurricanes as the story line by which students investigate the different interactions involved in hurricane generation, steering, and intensification. Students analyze a variety of visualization resources looking for patterns in occurrence and to develop an understanding of hurricane structure. They download archived data about past hurricanes and produce temporal and spatial plots to discover patterns in hurricane life cycles. They investigate the relationship between hurricane wind speed and factors such as barometric pressure and sea surface temperature by conducting spreadsheet analyses on archived data. They also conduct hands-on laboratory experiments in order to understand the physical processes that underpin energy transfer in convection, condensation, and latent heat. These activities highlight Earth science as a vital, rich, invigorating course, employing state-of-the-art technologies and in-depth labs with high relevance for our daily lives and the future.

McDaris, J. R.; Dahlman, L.; Barstow, D.

2007-12-01

479

The determination of calcium, magnesium, and sodium in wastewater by inductively coupled plasma spectroscopy  

SciTech Connect

Inductively coupled plasma-atomic emission spectroscopy (ICP-AES) has been used for the determination of calcium, magnesium, and sodium in industrial wastewater samples. The method developed employs the Qualitative mode of a Leeman Labs Plasma-Spec III Inductively Coupled Plasma (ICP) Spectrometer. Analytical results using the Qualitative mode were compared to those obtained using ICP Sequential analysis, flame atomic absorption spectrophotometry (AAS), and flame emission. 1 ref., 6 tabs.

Barnes, B.S.; Volesky, A.F.

1988-10-01

480

A versatile-deployable bacterial detection system for food and environmental safety based on LabTube-automated DNA purification, LabReader-integrated amplification, readout and analysis.  

PubMed

Contamination of foods is a public health hazard that episodically causes thousands of deaths and sickens millions worldwide. To ensure food safety and quality, rapid, low-cost and easy-to-use detection methods are desirable. Here, the LabSystem is introduced for integrated, automated DNA purification, amplification and detection. It consists of a disposable, centrifugally driven DNA purification platform (LabTube) and a low-cost UV/vis-reader (LabReader). For demonstration of the LabSystem in the context of food safety, purification of Escherichia coli (non-pathogenic E. coli and pathogenic verotoxin-producing E. coli (VTEC)) in water and milk and the product-spoiler Alicyclobacillus acidoterrestris (A. acidoterrestris) in apple juice was integrated and optimized in the LabTube. Inside the LabReader, the purified DNA was amplified, readout and analyzed using both qualitative isothermal loop-mediated DNA amplification (LAMP) and quantitative real-time PCR. For the LAMP-LabSystem, the combined detection limits for purification and amplification of externally lysed VTEC and A. acidoterrestris are 10(2)-10(3) cell-equivalents. In the PCR-LabSystem for E. coli cells, the quantification limit is 10(2) cell-equivalents including LabTube-integrated lysis. The demonstrated LabSystem only requires a laboratory centrifuge (to operate the disposable, fully closed LabTube) and a low-cost LabReader for DNA amplification, readout and analysis. Compared with commercial DNA amplification devices, the LabReader improves sensitivity and specificity by the simultaneous readout of four wavelengths and the continuous readout during temperature cycling. The use of a detachable eluate tube as an interface affords semi-automation of the LabSystem, which does not require specialized training. It reduces the hands-on time from about 50 to 3 min with only two handling steps: sample input and transfer of the detachable detection tube. PMID:24710334

Hoehl, Melanie M; Bocholt, Eva Schulte; Kloke, Arne; Paust, Nils; Stetten, Felix von; Zengerle, Roland; Steigert, Juergen; Slocum, Alexander H

2014-05-01

481

Ben Franklin as my Lab Partner: Franklin's Kite Experiment  

NSDL National Science Digital Library

This item is one in a series of nine educator's guides on Benjamin Franklin's experiments. This page, focusing on the famous kite experiment, features Franklin's historic letters and descriptions, as well as related drawings and schematics from the 18th century. The author provides insight into the history of electrostatic investigations. Related resources integrating classroom labs and activities are available within the series.

Morse, Robert

2007-02-07

482

40 Low-Waste, Low-Risk Chemistry Labs.  

ERIC Educational Resources Information Center

This resource book contains 40 chemistry labs and provides a single solution to the problems of purchase, storage, use, and disposal of chemicals. The text is designed to be used alone or integrated with current textbooks. A mixture of microchemistry and macrochemistry is used to provide variety and reflects trends in research and industry. Most…

Dougan, David

483

ANIMAL HEALTH DIAGNOSTIC LAB-LASP Prices 2013 & 2014  

Cancer.gov

06/24/14 ANIMAL HEALTH DIAGNOSTIC LAB-LASP Frederick National Laboratory for Cancer Research Services without a price for a given year: may not be available, the price is pending or it hasn't been selected to be displayed on the web. Service Code Service

484

The search for QCD in nuclei: A Jefferson lab perspective  

SciTech Connect

We discuss the phenomenon of Color Transparency, and give an overview of the extensive experimental searches for signatures of QCD in nuclei at Jefferson Lab, Hall-C. The results from protons, pions and kaons are compared with each other and with results from hadron scattering.

D. Dutta

2012-04-01

485

Modelling the Landing of a Plane in a Calculus Lab  

ERIC Educational Resources Information Center

We exhibit a simple model of a plane landing that involves only basic concepts of differential calculus, so it is suitable for a first-year calculus lab. We use the computer algebra system Maxima and the interactive geometry software GeoGebra to do the computations and graphics. (Contains 5 figures and 1 note.)

Morante, Antonio; Vallejo, Jose A.

2012-01-01

486

Remote intelligent nuclear facility monitoring in LabVIEW  

SciTech Connect

A prototype system implemented in LabVIEW for the intelligent monitoring of the movement of radioactive` material within a nuclear facility is presented. The system collects and analyzes radiation sensor and video data to identify suspicious movement of material within the facility. The facility system also transmits wavelet- compressed data to a remote system for concurrent monitoring. 2 refs., 2 figs.

Kucewicz, J.C.; Argo, P.E.; Caffrey, M.; Loveland, R.C.; McNeil, P.J.

1996-08-01

487

Lab using Volcano Scenarios: Hazard Maps and Communicating Risk  

NSDL National Science Digital Library

This is a lab activity in which small groups of students work with maps, rocks, photographs of volcanic deposits, and textual data to construct a hazard map and a risk communication plan for a specific volcano. Each group is assigned a "volcano scenario," which is based on real volcanoes.

Srogi, Leeann

488

Irmo High School's Language Arts Lab: A Golden Opportunity.  

ERIC Educational Resources Information Center

Since 1984, the Language Arts Lab at Irmo High School (Columbia, South Carolina) has provided: (1) remediation in reading and writing to students with low standardized test scores; and (2) assistance to other students in the areas of study skills, college entrance exam preparation, term papers, reading and reading assignments, grammar, and…

Ingle, Judith K.

489

Design And Non-design Labs: Does Transfer Occur?  

Microsoft Academic Search

This paper is the second in the series of three describing a controlled study ``Transfer of scientific abilities''. The study was conducted in a large-enrollment introductory physics course taught via Investigative Science Learning Environment. Its goal was to find whether designing their own experiments in labs affects students' approaches to experimental problem solving in new areas of physics and in

A. Karelina; Eugenia Etkina; Maria Ruibal-Villasenor; David Rosengrant; Alan van Heuvelen; Cindy Hmelo-Silver

2007-01-01

490

Using introductory labs to engage students in experimental design  

Microsoft Academic Search

The Investigative Science Learning Environment (ISLE) engages students in processes mirroring the practice of science. Laboratories play a central role in this learning environment. Students in ISLE laboratories design their own experiments to investigate new phenomena, test hypotheses, and solve realistic problems. We discuss various issues associated with implementing these labs in large enrollment introductory physics courses. We present examples

Eugenia Etkina; Sahana Murthy; Xueli Zou

2006-01-01

491

Integration view of Web Labs and Learning Management Systems  

Microsoft Academic Search

The integration of Learning Management Systems and specific learning support applications known as Web Labs (remote and virtual laboratories) are the target of a new wave of service-oriented applications devoted to improving on-line learning experiences. Nowadays these solution works in a separet way therefore the students teachers, administration must log in different systems, the are not reusing services, etc. For

E. Sancristobal; M. Castro; J. Harward; P. Baley; K. DeLong; J. Hardison

2010-01-01

492

Inside Linden Lab: Second Life [TM] for Educators  

ERIC Educational Resources Information Center

A new culture called Second Life [TM] has emerged that promises innovative strategies for everything from social interactions to business. Some educators believe it may hold new and unique opportunities for teaching and learning. Second Life [TM] (SL) is the creation of Linden Labs, a San Francisco-based corporation defined by its creators as "an…

Atkinson, Tom

2008-01-01

493

Using Ozone in Organic Chemistry Lab: The Ozonolysis of Eugenol  

ERIC Educational Resources Information Center

An ozonolysis experiment, suitable for undergraduate organic chemistry lab, is presented. Ozonolysis of eugenol (clove oil), followed by reductive workup furnishes an aldehyde that is easily identified by its NMR and IR spectra. Ozone (3-5% in oxygen) is produced using an easily built generator. (Contains 2 figures and 1 scheme.)

Branan, Bruce M.; Butcher, Joshua T.; Olsen, Lawrence R.

2007-01-01

494

Lab-on-a-chip with integrated optical transducers  

Microsoft Academic Search

Taking the next step from individual functional components to higher integrated devices, we present a feasibility study of a lab-on-a-chip system with flve difierent components monolith- ically integrated on one substrate. These flve components represent three main domains of microchip technology: optics, ?uidics and electronics. In particular, this device includes an on- chip optically pumped liquid dye laser, waveguides and

S. Balslev; A. M. Jorgensen; B. Bilenberg; K. B. Mogensen; D. Snakenborg; O. Geschke; J. P. Kutter; A. Kristensen

2006-01-01

495

Integrated optical systems for lab-on-a-chip applications  

Microsoft Academic Search

More than 80% of all lab-on-a-chip systems rely on optical detection. In most cases this is done by external bulk optical elements. We present an approach where advanced multimode optical elements are integrated with a microfluidic system. In order to ease integration of the optical circuitry, the waveguide height and width are adapted to the dimensions of the microfluidic channels.

Jorg Hubner; Anders M. Jorgensen; Thomas A. Anhoj; Dan A. Zauner

2005-01-01

496

Jefferson Lab personnel safety fast beam kicker system  

Microsoft Academic Search

The CEBAF accelerator at Thomas Jefferson National Accelerator Facility (Jefferson Lab) uses a continuous electron beam with up to 800 kilowatts of average beam power. The laboratory beam containment policy requires that in the event of an errant beam striking a beam blocking device, the beam must be shut off by three methods in less than 1 millisecond. One method

K. Mahoney; O. Garza; E. Stitts; H. Areti

1997-01-01

497

Chop Saw SUCCESS!: "Crash Proofing" a Metalworking Lab  

ERIC Educational Resources Information Center

The Technology Department at Appalachian State University runs a metals lab to introduce students to basic metalworking processes. Many of the students have never worked with metal before. The class objectives call for teaching students metal properties, processing, and design problem solving. The average student is a 20-year-old junior whom…

Domermuth, David

2004-01-01

498

Developing Nontraditional Biology Labs to Challenge Students & Enhance Learning  

ERIC Educational Resources Information Center

Laboratory experience and skills are not only essential for success in science studies, but are the most exciting and rewarding aspects of science for students. As a result, many biology teachers have become critical of the efficacy of cookbook-type laboratory activities as well as the purposes, practices, and learning outcomes of lab experiments…

Cherif, Abour H.; Siuda, JoElla E.; Movahedzadeh, Farahnaz

2013-01-01

499

Development of an In-Plant Microcomputer Literacy Lab.  

ERIC Educational Resources Information Center

General Electric Company (GE) of Erie, Pennsylvania, hosts onsite literacy classes in conjunction with the Northwest Tri-County Unit. The development of the inplant microcomputer literacy lab expands the offerings available to the participating adult basic education and General Educational Development program students by supplying software and…

Gacka, Richard C.

500

18. VIEW OF THE GENERAL CHEMISTRY LAB. THE LABORATORY PROVIDED ...  

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

18. VIEW OF THE GENERAL CHEMISTRY LAB. THE LABORATORY PROVIDED GENERAL ANALYTICAL AND STANDARDS CALIBRATION, AS WELL AS DEVELOPMENT OPERATIONS INCLUDING WASTE TECHNOLOGY DEVELOPMENT AND DEVELOPMENT AND TESTING OF MECHANICAL SYSTEMS FOR WEAPONS SYSTEMS. (4/4/66) - Rocky Flats Plant, General Manufacturing, Support, Records-Central Computing, Southern portion of Plant, Golden, Jefferson County, CO